CN1591245B

CN1591245B - Automatic correcting watch

Info

Publication number: CN1591245B
Application number: CN 200410085512
Authority: CN
Inventors: 福田正雄; 那须美则
Original assignee: RIZIBON TIMING INDUSTRIES Co Ltd
Current assignee: RIZIBON TIMING INDUSTRIES Co Ltd
Priority date: 2003-08-29
Filing date: 2004-08-30
Publication date: 2010-06-02
Anticipated expiration: 2024-08-30
Also published as: CN1591245A

Abstract

To provide a radio control clock capable of correcting time, even when the reception conditions of the standard time radio signals are poor. The radio-controlled clock is provided with an internal clock 1401; a display part 20 for displaying time; a ferrite rod antenna 1110, capable of receiving broadcasting radio waves containing the standard time radio signals and time announcement information at specified times; a long-wave receiving circuit 1130 for generating standard time signals on the basis of the standard time radio signals; an AM radio receiving circuit 1150 for extracting the time announcement information on the basis of the broadcasting radio waves; and a control circuit 14 for correcting time information clocked by the internal clock 1401, on the basis of the standard time signals generated by the long-wave receiving circuit 1130 at an initial period and correcting the time information and displayed time, on the basis of the time announcement information extracted by the AM radio receiving circuit 1150, when it reaches a preset time.

Description

Automatic table of corrections

Technical field

For example the present invention relates to carry out the automatic table of corrections of time correction near give the correct time information or etalon time electric wave signal of every etalon time electric wave signal (standard wave), basis that receives broadcasting wave such as the radio broadcasting that comprises the information of giving the correct time on schedule and comprise etalon time.

Background technology

Known reception for example from the standard wave transmitting station that is arranged on the Saga county with the etalon time electric wave signal of 60kHz frequency emission or from the standard wave transmitting station that is arranged on the Fukushima county etalon time electric wave signal with the 40kHz frequency emission, carry out the radio wave correction clock (for example with reference to patent documentation 1: the spy opens the 2002-267775 communique) of time correction according to this etalon time electric wave signal.

But present situation is, use pointer to represent the driving mechanism of simulation radio wave correction clock constantly, has the pointer position measuring ability, carry out to primary position to pin after, carry out time correction, but because long to the time of acceptance criteria time wave signal, and be to improve the affirmation that reliability will repeat to receive data, its as a result corrected time need long time, make the user very satisfied hardly.

In addition, because above-mentioned standard wave transmitting station generally is positioned at the place away from metropolitan district, with the lower broadcasting power emission standard time wave signal of about 50kW, for example at the radio wave correction clock that is provided with away from the metropolitan district of two standard wave transmitting stations, because a little less than the receiving intensity of etalon time electric wave signal, the situation that can not suitably carry out time correction owing to the place is arranged.

For example, be received in the next etalon time electric wave signal of transmitting station that is provided with from the Fukushima county of leaving more than the 200km in the occasion of city, Tokyo acceptance criteria time wave signal.On the other hand, the occasion of acceptance criteria time wave signal in the Osaka City for example, perhaps be received in the next etalon time electric wave signal of transmitting station that is provided with from the Fukushima county of leaving more than the 600km, perhaps be received in the next etalon time electric wave signal of transmitting station that is provided with from the Saga county of leaving more than the 500km, a little less than the receiving intensity, the situation that can not suitably carry out time correction owing to the place is arranged.

For example in the long wave band of the 40kHz that uses as standard wave, 60kHz frequency etc., because do not have to formulate about (electromagneticinterference: regulation electromagnetic interference (EMI)) exists for the situation that can't implement countermeasure from the noise of the long wave band of electronic installation radiation for the EMI of the electronic installation of e-machine or domestic electrification product etc.

Radio wave correction clock receives the occasion of the standard signal of long wave band under this environment, also receive the noise from these electronic installations simultaneously, has suitable decoding standard time information can not carry out the situation of time correction.

Especially, multiple noise is overlapping in exchanging (AC:Alternate Current) power lead, near ac power cable or power transmission line, receives this noise, and the suitably situation of acceptance criteria time wave signal is arranged.

In addition, in definition " for machine or system; any object in its environment is not given unallowed interference; bring into play the ability of function in this electromagnetic environment fully ", in FCC FCC (the Federal Communication Committee) specification as the specification of the EMC that for example is also referred to as Electro Magnetic Compatibility or electromagnetic compatibility (electro-magnetic compatibility), not about the specification below the 450kHz, there is not specification for power lead keying wave voltage in CISPR (international wireless the is disturbed special committee) specification about the frequency below the 150kHz.

Therefore, because do not carry out countermeasure for the electromagnetic noise of general long wave band, near these machines, the reception environment of etalon time electric wave signal is poor.

In addition, in the radio wave correction clock of for example vehicle mounted, be subjected to the noise of the electronic installation generation of car, the influence of for example ignition noise, the suitably situation of acceptance criteria electric wave signal is arranged.

Summary of the invention

The present invention puts forward in view of such thing, and its objective is provides a kind of automatic table of corrections, and it can be in the relatively short time and no matter is subjected to the reception environment of the etalon time electric wave signal that noise etc. influences positively to carry out automatic time correction easily.

For achieving the above object, automatic table of corrections of the present invention has: internal table; Carry out the moment display device of demonstration constantly; At least constantly can receive the antenna part of the broadcasting wave that comprises the information of giving the correct time in regulation: the broadcasting wave receiving equipment that extracts the information of giving the correct time according to the broadcasting wave that receives at above-mentioned antenna part; At least the time information of the above-mentioned internal table timing of the information correction that gives the correct time of extracting according to above-mentioned broadcasting wave receiving equipment, show the opertaing device of the time information of correction once generations, above-mentioned internal table timing, by above-mentioned moment display device in the incident of regulation.

Preferably, the etalon time electric wave signal that above-mentioned antenna part further has can acceptance criteria time wave signal, receive according to above-mentioned antenna part generates the standard wave receiving equipment of etalon time signal, above-mentioned opertaing device, the time information of the above-mentioned internal table timing of etalon time signal correction that generates according to above-mentioned standard wave receiving equipment in the time of in the early stage.

Preferably, above-mentioned opertaing device, the time information of the above-mentioned internal table timing of etalon time signal correction that generates according to above-mentioned standard wave receiving equipment in the time of in the early stage, arrive the occasion in the predefined moment according to the time information of above-mentioned internal table timing, generation as the incident of afore mentioned rules, make above-mentioned broadcasting wave receiving equipment receive above-mentioned broadcasting wave, the extraction information of giving the correct time, according to the time information of the above-mentioned internal table timing of the above-mentioned information correction that gives the correct time, according to the demonstration moment of above-mentioned time information correction by above-mentioned moment display device.

Preferably, above-mentioned opertaing device, arrive the occasion in the predefined moment at time information according to above-mentioned internal table timing, according to by the accepting state of above-mentioned standard wave receiving equipment to above-mentioned etalon time signal, the time information of the above-mentioned internal table timing of etalon time signal correction that information of extracting according to above-mentioned broadcasting wave receiving equipment of giving the correct time or standard wave receiving equipment generate is proofreaied and correct demonstration moment by above-mentioned moment display device according to above-mentioned time information.

Preferably, above-mentioned opertaing device, according to the time information of above-mentioned internal table timing in above-mentioned standard wave receiving equipment of the predefined moment occasion bad to the accepting state of above-mentioned etalon time signal, the time information of the above-mentioned internal table timing of the information correction that gives the correct time of extracting according to above-mentioned broadcasting wave receiving equipment is proofreaied and correct demonstration moment by above-mentioned moment display device according to above-mentioned time information.

Preferably, above-mentioned antenna part comprises the receive frequency set device that can set a plurality of different receive frequencies, and above-mentioned opertaing device makes above-mentioned receive frequency set device set the good frequency of accepting state according to the accepting state of above-mentioned etalon time electric wave signal.

Preferably, above-mentioned opertaing device takes place as the afore mentioned rules incident once setting battery, makes above-mentioned moment display device show the time information of above-mentioned internal table timing.

Preferably, at least further has the internal electric source that is used to drive above-mentioned internal table, when externally power supply is disconnected by above-mentioned internal electric source supply capability, external power source replaces the electric power of above-mentioned internal electric source to supply with when connecting can be by the power supply switching part of external power source supply capability, above-mentioned broadcasting wave receiving equipment, accepting the electric power of above-mentioned internal electric source or external power source supplies with, the broadcasting wave that receives according to above-mentioned antenna part extracts the information of giving the correct time, above-mentioned moment display device is accepted the electric power of said external power supply and is supplied with, can show constantly, the time information of the above-mentioned internal table timing of the information correction that gives the correct time of extracting according to above-mentioned broadcasting wave receiving equipment, electric power is supplied with the words that power supply internally switches to external power source, incident as afore mentioned rules takes place, and makes above-mentioned moment display device show the time information of above-mentioned internal table timing.

Preferably, above-mentioned moment display device can use pointer to show constantly.

Preferably, above-mentioned antenna part, comprise the bar-shaped antenna of the ferrite that can receive above-mentioned etalon time signal and above-mentioned broadcasting wave, above-mentioned standard wave receiving equipment generates the etalon time signal according to the etalon time electric wave signal that the bar-shaped antenna of above-mentioned ferrite receives, and above-mentioned broadcasting wave receiving equipment extracts the information of giving the correct time according to the broadcasting wave that the bar-shaped antenna of above-mentioned ferrite receives.

Preferably, above-mentioned broadcasting wave comprises the signal on schedule of whenever synchronous on schedule predefined frequency at least as the information of giving the correct time, above-mentioned broadcasting wave receiving equipment comprises the filter apparatus that extracts the signal on schedule of said frequencies according to above-mentioned broadcasting wave, and above-mentioned opertaing device is according to the time information of the above-mentioned internal table timing of signal correction on schedule of above-mentioned filter apparatus extraction.

Preferably, the error of the time information of the above-mentioned internal table timing of signal correction on schedule that above-mentioned opertaing device extracts according to above-mentioned filter apparatus, according to this control information carry out above-mentioned moment display device to pin.

According to the present invention, can be in the relatively short time and no matter be subjected to the reception environment of the etalon time electric wave signal that noise etc. influences positively to carry out automatic time correction easily.

Description of drawings

Fig. 1 is the system construction drawing of first embodiment of the automatic table of corrections that the present invention relates to of expression.

Fig. 2 is the circuit diagram of the concrete structure example of the electric wave receiving system in the automatic table of corrections of presentation graphs 1.

Fig. 3 is the planimetric map of gear part that comprises the automatic table of corrections of Fig. 1.

Fig. 4 is the sectional drawing of the automatic table of corrections of Fig. 3.

Fig. 5 is the figure that is used for illustrating the electric wave accepting state of the control circuit that the present invention relates to.

Fig. 6 represents an example of the moment code of etalon time electric wave signal.(a) represent the per hour form beyond 15,45 minutes, (b) represent per hour 15 minutes, 45 minutes form.

Fig. 7 is the circuit diagram of structure example of the AM radio receiver circuit of presentation graphs 2.

Fig. 8 is the figure that is illustrated in the general A M radio broadcast wave a near object lesson of every information of giving the correct time that comprises on schedule.

Fig. 9 is the figure that is used to illustrate near the frequency spectrum of every AM radio broadcast wave that comprises the information of giving the correct time on schedule shown in Figure 8.

Figure 10 is the circuit diagram of structure example of radio receiver circuit of Fig. 2 of the expression occasion that adopts the heterodyne detection mode.

Figure 11 is the figure of processing of radio receiver circuit that is used to illustrate Figure 10 of the occasion that adopts the heterodyne detection mode.

Figure 12 is a planimetric map part, that drive first drive system of second hand of expression as automatic table of corrections.

Figure 13 is a planimetric map part, that drive second drive system of minute hand and second hand of expression as automatic table of corrections.

Figure 14 is the planimetric map of the one No. 5 gear of the expression part that becomes first drive system that drives second hand.

Figure 15 is the planimetric map of the second hand wheel of the expression part that becomes first drive system that drives second hand.

Figure 16 is another routine planimetric map of the second hand wheel of the expression part that becomes first drive system that drives second hand.

Figure 17 is the planimetric map of No. 3 gears of the expression part that becomes second drive system that drives minute hand and second hand.

Figure 18 is the planimetric map of the minute gear of the expression part that becomes second drive system that drives minute hand and second hand.

Figure 19 is the planimetric map of the hour hand gear of the expression part that becomes second drive system that drives minute hand and second hand.

Figure 20 is the end view drawing of the point of expression minute hand pipe and second hand pipe.

Figure 21 represents that the pointer position of automatic table of corrections shown in Figure 1 detects the process flow diagram of the action of handling.

Figure 22 is the figure of output mode that is used to illustrate the detection light of automatic table of corrections shown in Figure 1.

Figure 23 is the process flow diagram that is used to illustrate the molar behavior of automatic table of corrections shown in Figure 1.

Figure 24 is the system construction drawing of second embodiment of the automatic table of corrections that the present invention relates to of expression.

Figure 25 is the process flow diagram that is used to illustrate the molar behavior of automatic table of corrections shown in Figure 24.

Embodiment

Describe the embodiment of the automatic table of corrections that the present invention relates in detail below in conjunction with accompanying drawing.

The automatic table of corrections that the first embodiment of the present invention is related for example has the broadcasting wave that receives near every radio broadcasting that comprises the information of giving the correct time on schedule etc. and comprises etalon time electric wave signal (standard wave), carries out the function of time correction according to give the correct time information or etalon time electric wave signal.

In first embodiment, the time information of the etalon time signal correction internal table timing that generates according to the standard wave receiving equipment in the time of in the early stage, arrive the occasion in the predefined moment according to the time information of internal table timing, incident as regulation takes place, on the broadcasting wave receiving equipment, receive above-mentioned broadcasting wave, the extraction information of giving the correct time, according to the time information of the above-mentioned internal table timing of the information correction that gives the correct time, according to the demonstration moment of time information correction by above-mentioned moment display device.

In addition, the automatic table of corrections that the second embodiment of the present invention is related, for example has the broadcasting wave that receives near every radio broadcasting that comprises the information of giving the correct time on schedule etc., time information according to the information correction internal table timing of giving the correct time of the broadcasting wave that receives, when electric power is supplied with electric power that power supply internally switches to external power source and supplied with, the time information of internal table timing is carried out the function that the simulation as the pointer shows constantly.

In a second embodiment, take place the incident of battery as regulation is set basically, the simulation that the time information of internal table timing is carried out as the pointer shows constantly.

Specifically, internal table is carried out timing according to the initial stage time information, receives the broadcasting wave of radio etc. simultaneously, upgrades the clocking information of internal table.

In addition, built-in internal table drives special-purpose internal cell (internal electric source), only carries out moment demonstration when the electric power of supplying with from external power source.

As broadcasting wave, for example use the AM radio broadcast wave that comprises the information of giving the correct time in the present embodiment.The advantage of the information of giving the correct time that employing comprises in the AM radio broadcasting has following points.

1. a plurality of transmitting stations are set in the whole nation.

2.AM the emission output power of radio broadcast wave is bigger than the emission output power of standard wave transmitting station.

For example, the AM radio broadcasting station carries out the AM radio broadcasting from the metropolitan district suburbs with big emission output power.

For example at the metropolitan district suburbs in Sapporo city, Tokyo, Osaka, Fukuoka etc., the AM radio broadcasting station that is provided with as shown in table 1.At the metropolitan district 50km in distance Sapporo city, Tokyo, Osaka, Fukuoka city etc. with the interior radio broadcasting station that is provided with.

For example export the AM radio broadcast wave of Tokyo NHK first broadcasting, frequency 584kHz, emissive power 300kW from the beautiful prefecture of Saitama, south, the beautiful county of Saitama calamus raised path between farm fields.The AM radio broadcast wave of the U.S. former raised path between farm fields pellet output in prefecture Osaka NHK first broadcasting, frequency 666kHz, emissive power 100kW in the Nanhe River, Osaka.

Table 1

Frequency	Output power	The radio station name	Transmitting station is provided with the place
Frequency	Output power	The radio station name	Transmitting station is provided with the place	567kHz	100kW	NHK first	Bie Shi river, river, Hokkaido is not too
747kHz	500kW	NHK second	Bie Shi river, river, Hokkaido is not too	567kHz	100kW	NHK first	Bie Shi river, river, Hokkaido is not too
747kHz	500kW	NHK second	Bie Shi river, river, Hokkaido is not too	774kHz	500kW	NHK second	Big Diarrhea village, prefecture, Xian Nan autumn fields, autumn fields
594kHz	300kW	NHK first	The beautiful prefecture of Saitama, south, the beautiful county of Saitama calamus raised path between farm fields	774kHz	500kW	NHK second
594kHz	300kW	NHK first		693kHz	500kW	NHK second	The beautiful prefecture of Saitama, south, the beautiful county of Saitama calamus raised path between farm fields
828kHz	300kW	NHK second	The Osaka plumage drags family, Ye Shi prefecture	693kHz	500kW	NHK second
828kHz	300kW	NHK second	The Osaka plumage drags family, Ye Shi prefecture	666kHz	100kW	NHK first	In the Nanhe River, Osaka on the U.S. former raised path between farm fields pellet in prefecture
612kHz	100kW	NHK first	The different raised path between farm fields in springtime city, Fukuoka county	666kHz	100kW	NHK first
612kHz	100kW	NHK first		873kHz	500kW	NHK second	Kikuchi prefecture, Kumamoto county big Tianjin raised path between farm fields Shan Shui

3. regulation is about the specification of the noise of the frequency band that carries out radio broadcasting.

The electronic installation of a lot of domestic electrification goods etc. designs like that for satisfying this specification, and is little from the noise intensity of these electronic installation outputs.Therefore the reception environment of AM radio broadcasting is good.

In addition, the AM radio broadcasting is from 525kHz to 1605kHz at the medium wave broadcast band, and standard wave is tens of kHz, uses the bar-shaped antenna of same ferrite can receive various electric waves, can make antenna general.Modulation system is also same with the AM modulation phase in addition.Therefore, in embodiment shown below, an AM radio broadcasting and an etalon time electric wave signal part are general.

Below, be described with reference to the accompanying drawings the automatic table of corrections that present embodiment relates to.

First embodiment

Fig. 1 is the system construction drawing of first embodiment of the automatic table of corrections that the present invention relates to of expression.Fig. 2 is the circuit diagram of the concrete structure example of the electric wave receiving system in the automatic table of corrections of presentation graphs 1.Fig. 3 is the planimetric map of gear part that comprises the automatic table of corrections of Fig. 1.Fig. 4 is the sectional drawing of the automatic table of corrections of Fig. 3.

The automatic table of corrections 10 that present embodiment relates to, as depicted in figs. 1 and 2, have: electric wave receiving system 11, time correction switch 12, oscillatory circuit 13, control circuit 14, driving circuit 15, light-emitting component 16, buffer circuits 17, driving circuit 18, display part 20, display 30, table body 100, second hand with motor 121, the time minute hand electricity consumption motivation 131, light detecting sensor portion 140, manual correction system 150, transistor Q1, Q2 and resistive element R1～R4.

In the present embodiment, show for using analog pointer to carry out the moment, display part 20 by driving circuit 15, light-emitting component 16, buffer circuits 17, driving circuit 18, display part 20, display 30, second hand with motor 121, the time minute hand electricity consumption motivation 131, light detecting sensor portion 140, manual correction system 150, transistor Q1, Q2 and resistive element R1～R4 constitute.Outside this simulation display part 20, digital display devices such as liquid crystal can be set also.

Electric wave receiving system 11, for example receive the standard wave (being also referred to as the etalon time electric wave signal) of the etalon time information (being also referred to as code constantly) that comprises never illustrated standard wave transmitting station emission, carry out predetermined process, export to control circuit 14 as signal S1130.

In addition, electric wave receiving system 11 for example receives the radio broadcast wave that comprises from the information of giving the correct time of AM radio broadcasting station emission, and this radio broadcast wave is carried out predetermined process, exports to control circuit 14 as signal S1160.

Electric wave receiving system 11, specifically, as shown in Figure 2, have the bar-shaped antenna 1110 of ferrite, standard wave frequency switching part 1120, standard wave receiving circuit 1130, radio frequency switching part 1140, AM radio receiver circuit 1150 and wave filter 1160.

Bar-shaped antenna 1110 acceptance criteria time wave signals of ferrite and AM radio broadcast wave.As previously mentioned, the wavelength of etalon time electric wave signal and AM radio broadcast wave is long, can use the bar-shaped antenna 1110 of ferrite to receive.

The bar-shaped antenna 1110 of ferrite has feerod 1111, coil L1111 and coil L1112.

In the present embodiment, for example as shown in Figure 2, coil L1111 and coil L1112 are set at the two ends of feerod 1111.

Standard wave frequency switching part 1120 is for example according to from the receive frequency of the switching standards electric wave of control circuit 14 output, the control signal CTL1123 of 40kHz and 60kHz for example in the present embodiment, the receive frequency of switching standards electric wave.

In detail, for example standard wave frequency switching part 1120 has capacitor 1121, capacitor 1122 and switch 1123.

Capacitor connected in series 1122 and switch 1123, in parallel with the coil portion L1111 of capacitor 1121 and the bar-shaped antenna 1110 of coiling ferrite.

In addition, the terminal Tb of the end of an end of capacitor 1121, coil portion L1111, switch 1123 is connected to earthing potential (reference potential) GND.The terminal Ta of switch 1123 goes up an end that connects capacitor 1122.

The other end of the other end of the other end of capacitor 1121, coil portion L1111, capacitor 1122 connects jointly, is connected to the input end of long wave receiving circuit 1130 in addition.

Switch 1123 is set at conducting or nonconducting state to terminal Ta and terminal Tb according to control signal CTL1123.

Say in detail,, terminal Ta and terminal Tb are set at the control signal CTL1123 of nonconducting state from control circuit 14 outputs for example in the occasion of the etalon time electric wave signal that receives 60kHz.Thus, switch 1123 forms resonant circuit because capacitor 1122 and coil portion 1111 are set to nonconducting state by coil portion 1111 and capacitor 1121, and the setting resonant frequency is 60kHz.

On the other hand, in the occasion of the etalon time electric wave signal that receives 40kHz, terminal Ta and terminal Tb are set at the control signal CTL1123 of conducting state from control circuit 14 outputs.Thus, switch 1123 is because terminal Ta and terminal Tb are set to conducting state, and capacitor 1121, capacitor 1122 and coil portion 1111 form resonant circuit in parallel, and for example setting resonant frequency is the 40kHz lower than 60kHz.

Long wave receiving circuit 1130 for example carries out the decoding by the etalon time electric wave signal S1120 of bar-shaped antenna 1110 of ferrite and 1120 inputs of standard wave frequency switching part, and the etalon time signal is outputed to control circuit 14 as signal S1130.

Say that in detail long wave receiving circuit 1130 has not shown RF amplifier, detecting circuit, waveform shaping circuit, carry out processing and amplifying, detection processing, wave shaping processing etc., the etalon time signal of result is exported as signal S1130.Control circuit 14 carries out time correction according to the etalon time signal.

In addition, for example the long wave receiving circuit 1130, and according to the control signal CTL1130 from control circuit 14 outputs, the reception of control criterion time wave signal is opened state or received off status.

In addition, the standard wave of Japan is to use on the basis of Independent Administrative Legal Person Communication General Inst. (CRL), and the standard wave transmitting station of the standard wave of the standard wave transmitting station of standard wave of transmission frequency 40kHz and transmission frequency 60kHz is set.

The standard wave that electric wave receiving system 11 receives is launched with form shown in Fig. 5 (a).

Specifically, constantly code by 1,0, these 3 kinds of signal modes of P form, distinguish 1,0, P is respectively 500ms, 800ms, 200ms by width during 100% amplitude in 1 signal mode of 1 second (sec).Modulation system, maximal value are 100%, minimum value 10%.

In the good occasion of accepting state, as Fig. 5 (b), the pulse signal of corresponding standard wave signal is outputed to control circuit 14 as signal S1130 from electric wave receiving system 11.

This signal S1130 for example is made of high level that is equivalent to first level and the low level that is equivalent to second level.Control circuit 14 is according to high level and low level, together with handling to the evaluation that the rising edge ed2 of high level carries out accepting state to low level falling edge ed1 and from low level from high level.Occasion not distinguishing edge ed1 and edge ed2 only claims edge ed.

The following describes the emission data of long wave standard wave.

Fig. 6 represents an example of the moment code of etalon time electric wave signal.Fig. 6 (a) expression is the form beyond 15,45 minutes per hour, and Fig. 6 (b) expression is 15 minutes, 45 minutes form per hour

Transmission information is to calculate day from the accumulation of timesharing beginning on January 1.

The emission of data constantly, with 1 bps 1 by stages between as 1 frame, in this frame, provide the accumulation of above-mentioned timesharing beginning on January 1 to calculate the information of day with binary-coded decimal.In addition, the data of transmission comprise the mark of the so-called P sign indicating number beyond 01, and this P sign indicating number, just divides (0 second) in several places of 1 frame, occurred in 9 seconds, 19 seconds, 29 seconds, 39 seconds, 49 seconds, 59 seconds.Only when 1 time 59 seconds, 0 second, this occurs the position continuously and is branch position just in continuous appearance 1 frame of these P sign indicating numbers.That is because the moment data of time data etc. just determine position in 1 frame as benchmark in the branch position with this, so do not carry out this just the words of the detection of branch position just can not take out moment data.

Radio frequency switching part 1140 is for example according to from the receive frequency of the switching radio broadcast wave of control circuit 14 output, for example the control signal CTL1143 of the 666kHz of the 594kHz of the Tokyo NHK first broadcasting JOAK and Osaka NHK first broadcasting JOBK switches the receive frequency of radio broadcast wave in the present embodiment.

Say that in detail for example radio frequency switching part 1140 has capacitor 1141, capacitor 1142 and switch 1143.

Capacitor connected in series 1142 and switch 1143, in parallel with the coil portion L1112 of capacitor 1141 and the bar-shaped antenna 1110 of coiling ferrite.

In addition, an end of the end of an end of capacitor 1141, coil portion L1112, capacitor 1142 is connected to reference potential GND.The other end of capacitor 1142 is connected to terminal Tc.

The other end of the other end of capacitor 1141, coil portion L1112, terminal Td connect jointly, are connected to the input end of AM radio receiver circuit 1150 in addition.

Switch 1143 is set at conducting state or nonconducting state to terminal Tc and terminal Td according to control signal CTL1143.

Say in detail,, terminal Tc and terminal Td are set at the control signal CTL1143 of nonconducting state from control circuit 14 outputs in the occasion of the radio broadcast wave that receives Osaka NHK first broadcasting JOBK.Thus, switch 1143 for example forms resonant circuit by coil portion 1112 and capacitor 1141 by capacitor 1142 and coil portion 1112 are set at nonconducting state, and the setting resonant frequency is 666kHz.

On the other hand, in the occasion of the radio broadcast wave that receives the Tokyo NHK first broadcasting JOAK, terminal Tc and terminal Td are set at the control signal CTL1143 of conducting state from control circuit 14 outputs.Thus, switch 1143 is by being set at conducting state to Tc and terminal Td, and capacitor 1141, capacitor 1142 and coil portion L1112 form resonant circuit in parallel, set the resonant frequency 594kHz lower than 666kHz.

AM radio receiver circuit 1150, for example by the bar-shaped antenna 1110 of ferrite and 1140 radio broadcast wave demodulation of importing of radio frequency switching part, extraction comprises the information of giving the correct time of radio broadcast wave, exports to wave filter 1160 as signal S1150.

In addition, AM radio receiver circuit 1150, for example open the control signal CTL1150 of state and reception off status according to the reception of the control radio broadcasting of exporting from control circuit 14, the reception of the reception action of the demodulation of control radio broadcast wave etc. is opened state and is received off status.

Fig. 7 is the functional-block diagram of an object lesson of the AM radio receiver circuit of presentation graphs 2.

For example the AM radio receiver circuit 1150, as shown in Figure 7, have amplifier 1151, quartzy filter section 1152 and detecting circuit 1153.

Amplifier 1151 for example amplifies from the signal S1140 of bar-shaped antenna 1110 of ferrite and 1140 outputs of radio frequency switching part, outputs to quartzy filter section 1152 as signal S1150.

For example, in the AM radio broadcast wave of radio broadcasting station emission, near (00 minute and 00 second) whenever on schedule, comprise the information of giving the correct time as shown in Figure 8.Say in detail,, modulate predefined frequency at (00 minute and 00 second) AM whenever on schedule, for example signal on schedule (deamplification) d of 880Hz for example at the pulse signal p of 57 seconds, 58 seconds, 59 seconds AM modulating frequency 440Hz.It is synchronous that for example rise time T57, the T58 of pulse signal p and deamplification d, T59, T00 carry out second respectively.

The AM radio broadcast wave that comprises the information of giving the correct time, in the occasion that comprises pulse signal p and deamplification d shown in Figure 8, for example as shown in Figure 9, have with carrier wave f0 be the center, at the frequency spectrum of the shape of the line of frequency (f0+f1) and frequency (f0-f1).

Filter section 1152 is extracted the signal on schedule of assigned frequency according to broadcasting wave.The example of filter section 1152 as quartzy wave filter used in expression in the present embodiment.

Say that in detail quartzy filter section 1152 for example as shown in Figure 7, has the first quartzy wave filter 11521 and the second quartzy wave filter 11522.

Quartzy filter section 1152, for example as shown in Figure 9, according to the signal S1151 from amplifier 1151 outputs, output has only the signal S1152 of frequency (f0+f1) or frequency (f0-f1) composition.

Specifically, in the occasion that detects as the original frequency 880Hz that gives the correct time of NHK first broadcasting of Tokyo and Osaka, in quartzy filter section 1152, be provided with and make for 11521 in the first quartzy wave filter by 593.120kHz, for 11522 wave filters of the second quartzy wave filter by 665.120kHz.

Detecting circuit 1153 is according to the signal S1152 from quartzy filter section 1152 outputs, the signal of AM detection frequency 440Hz and frequency 880Hz, output signal S1150.The general detection mode of using is used in the AM detection of detecting circuit 1153, for example detection is carried out in square detection or envelope detection etc.

Wave filter 1160 only extracts time signal according to the signal S1150 from detecting circuit 1153 outputs, exports to control circuit 14 as signal S1160.

In addition, in the occasion that adopts the heterodyne detection mode, radio receiver circuit 1150 as shown in figure 10, is made of amplifier 1154, local oscillator circuit 1155, frequency-conversion circuit 1156, quartzy filter section 1157 and detecting circuit 1158.

Adopt the occasion of heterodyne detection mode in radio receiver circuit 1150, the frequency of the local oscillation signal S1155 by changing local oscillator circuit 1155 outputs can make different incoming frequencies be changed to the intermediate frequency fi of unified frequency.Its result, as shown in figure 11, the quartzy frequency of passing through becomes (fi-f1) or (fi+f1).

Specifically, occasion in NHK first broadcasting that receives Tokyo and Osaka, if intermediate frequency fi is 455kHz, be set at (fi+f1) because be used for the local oscillation frequency of frequency transformation, therefore in the occasion of the NHK in Tokyo first broadcasting, local oscillation frequency becomes 1048kHz, and the occasion in the NHK of Osaka first broadcasting becomes 1121kHz.Thus, because all be transformed to same 455kHz, so can use a kind of quartzy wave filter that only passes through 452.12kHz or 455.880kHz.

Time correction switch 12 is for example operated when carrying out time correction, and respective operations is to Control current 14 output signal S12.Control circuit 14, one just carries out time correction from time correction switch 12 input signal S12.

Oscillatory circuit 13 is made of crystal oscillator CRY and capacitor C2, C3.The fundamental clock supply control circuit 14 of assigned frequency.

Control circuit 14 has internal table 1401 and storer 1402.

Internal table 1401 for example comprises the counter etc. second of the minute counter of hour counter, timing branch information of a year information counter, month information counter, day information counter, week information counter, timing hour information and timing information second.

Storer 1402 for example uses as the work space of control circuit 14.For example, storer 1402 can be used RAM formations such as (Random Access Memory).

Control circuit is acceptance criteria time wave signal during 14 initial stages, correction as the year information of the temporal information of internal table 1401 timing, month information, day information, what day information, the time information, branch information and second information, according to the temporal information of internal table 1401 timing, show correction constantly as described later.

In addition, control circuit 14 is exported for example control signal CTL1123 of the receive frequency of switching standards time wave signal, make standard wave frequency switching part 1120 switch to 40kHz or 60kHz to receive frequency, receive the good side's of accepting state etalon time electric wave signal.

In addition, control circuit 14 according to the standard time information (being also referred to as time information) of internal table 1401 timing, carries out the time correction action in the predefined moment (setting constantly).At this moment, control circuit 14 one arrives constantly in setting, just makes AM radio receiver circuit 1150 receive broadcasting waves, carries out time correction according to the information of extracting of giving the correct time.

In addition, for example control circuit 14, according to the accepting state of etalon time electric wave signal, carry out time correction according to the etalon time signal of etalon time electric wave signal generation or the information of giving the correct time of AM radio receiver circuit 1150 extractions according to long wave receiving circuit 1130.

For example, control circuit 14, setting the bad occasion of accepting state of etalon time electric wave signal constantly, time information according to internal table 1401 timing makes AM radio receiver circuit 1150 receive the AM radio broadcast wave that comprises the information of giving the correct time, the extraction information of giving the correct time, according to the time information of this information correction internal table of giving the correct time, say second information of proofreading and correct in detail.

Control circuit 14 receives timing controlled when receiving the AM radio broadcast wave.

Say in detail, control circuit 14, as receiving timing controlled, for example according to the time information of internal table 1401 timing from comprising every stipulated time on schedule, for example every tens of seconds forward direction AM radio receiver circuits 1150 outputs before on schedule make the control signal CTL1150 that receives the AM radio broadcast wave.

Usually because quartzy table has 20 seconds precision of monthly error, so if as the reception of above-mentioned beginning radio broadcast wave, can positively receive the information of giving the correct time.

In addition, control circuit 14, output makes the control signal CTL1143 of the AM radio broadcast wave that receives the good side of accepting state, sets the receive frequency of AM radio broadcast wave.

Control circuit 14 according to signal S1160, for example detects the rising of frequency 880Hz, get this rise time for each on schedule.At this moment, make internal table 1401 according to etalon time electric wave signal timing year information, month information, day information, the time information, branch information, second information, control circuit 14 is according to giving the correct time information correction information second.

Control circuit 14, is good occasion in differentiation for the accepting state of etalon time electric wave signal, according to proofreading and correct the time information of internal table 1401 timing by the etalon time electric wave signal that long wave receiving circuit 1130 receives by the bar-shaped antenna 1110 of ferrite, according to the time information of internal table 1401 timing drive second hand drive system 120 and the time minute hand drive system 130, proofread and correct by pointer demonstration constantly.

The function of control circuit 14 is described in more detail below.Control circuit 14, state and in the occasion of operation time correction switch 12 in the early stage for example, the starting point of carrying out pointer gear detects to be handled, and exports the drive signal CTL1 and the CTL2 of the time information of corresponding internal table 1401 timing, carries out showing by the moment of pointer.

Control circuit 14, the position probing of carrying out pointer handle, the time minute gear and second hand wheel phase place coincide handle, the starting point retrieval process of second hand, the time minute hand the starting point retrieval process, detect the position of each pointer gear after, set pointer for regulation constantly.

Phase place coincide to be handled, minute gear and second hand wheel when for example driving, make the time transmittance section, the transmittance section that on second hand wheel, is provided with that are provided with on the minute gear arrive from the light of light-emitting component 142 outputs and connect such position.

The starting point retrieval process of second hand receives from the light of light-emitting component 142 outputs by light shielding part and the transmittance section that is provided with on second hand wheel on light receiving element 144, according to the switching mode retrieval starting point of light.

The time minute hand the starting point retrieval process, as described later, on the light receiving element 144 by the time light shielding part and the transmittance section that are provided with on the minute gear receive from the light of light-emitting component 142 outputs, according to the switching mode retrieve position of light.

Control circuit 14 carries out the stipulated time, and for example the sampling of the etalon time electric wave signal between 8 seconds in the present embodiment (for example 32Hz) is judged accepting state according to the result of this sampling.

Say that in detail control circuit 14 for example carries out the sampling (for example 32Hz) to the signal S1130 that imports from electric wave receiving system 11, detects edge ed, according to having or not or number judgement accepting state of this edge ed.

Control circuit 14, the etalon time electric wave signal according to the receive frequency with this setting receives in the occasion that can change constantly, carries out the counting control of the various counters of internal table 1401 according to the fundamental clock that is produced by oscillatory circuit 13.

Control circuit 14 not in the occasion of reference range, is not exported control signal CTL1 in accepting state, to driving circuit 15 output drive signal DR1, makes light-emitting component 16 luminous as notification means, notifies the user almost can not the acceptance criteria electric wave signal.

Control circuit 14, etalon time electric wave signal according to 11 receptions of electric wave receiving system, the timer time and the etalon time information that compare the various moment counter timing of internal table 1401, in the occasion that produces error, to should error correction counter constantly, give the motor 131 pulse signal P that input is used to proofread and correct as control signal CTL2 according to this correction, carry out fast feed driving etc., carry out showing by the moment of pointer.

Below, in conjunction with Fig. 3,4, Figure 12～Figure 21 the driving mechanism of automatic table of corrections and the concrete structure of pointer position detection system are described.

Table body 100 as shown in Figures 3 and 4, has the lower casing 111, the upper casing 112 that are connected to form profile relative to each other, and by in lower casing 111 and the space that upper casing 112 forms at the middle plate 113 that disposes with 111 one-tenth connection status of lower casing.

Table body 100, equipment as the lower casing 111 of second shell that is connected to form profile relative to each other and as the upper casing 112 of first shell with by the plate 113 that is arranged in central portion almost in this lower casing 111 and the space that upper casing 112 forms and disposes with 111 one-tenth connection status of lower casing, for the assigned position of the lower casing in the space 111, middle plate 113, upper casing 112, fixing or with axle support first drive system (second hand drive system) 120, second drive system (time minute hand drive system) 130, light detecting sensor 140, manual correction system 150 etc.

Second hand drive system 120 and the time minute hand drive system 130 be equivalent to moment display device involved in the present invention.

First drive system 120 as shown in Figure 3, is made of following parts; The second hand that is made of the rotor 121c of the stator 121a of approximate コ font, configuration free to rotate between the drive coil 121b that reels on the leg sheet of the side of this stator 121a, magnetic pole the opposing party of this stator 121b is with stepping motor 121; The one No. 5 gear 122 of conduct first transmission gear of the pinion 121d engagement of gear wheel in large diameter 122a and this rotor 121c (the first detection gear); The second hand wheel 123 that detects with gear (first pointer gear) with the conduct second of the pinion wheel 122b of the one No. 5 gear 122 engagement.

Here, second hand is fixed on the plate 113 during its stator 121a is placed on stepping motor 121, and rotor 121c is supported by axle on middle plate 113 and upper casing 112, output control signal CTL1 according to control circuit 14 controls its rotation direction, rotational angle and velocity of rotation.

15 of 60 of the numbers of teeth of the one No. 5 gear 122 formation gear wheel in large diameter 122a, the numbers of teeth of small diameter gear 122b, axle free to rotate is supported on middle plate 113 and the upper casing 112, its gear wheel in large diameter 122a and second hand decelerate to fixing speed to the velocity of rotation of rotor 121c with rotor 121c (pinion 121d) engagement of stepping motor 121.On the one No. 5 gear 122, as shown in figure 12, in the zone of overlapping second hand wheel 123, become at the circumferencial direction through hole 122c of 3 circles of (central angle alpha 1 is 120 °) configuration uniformly-spaced.This through hole 122c not only passes through the detection light of light detecting sensor 140, and one uses as the pilot hole when the one No. 5 gear 122 is installed (hole of decision angle) at least.

Second hand wheel 123,60 of the number of teeth formation of its gear wheel in large diameter 123a, its axial region one end axle are supported on the upper casing 112, its other end of plate 113 is pressed into second hand axle 123b in lower casing 111 sides connect, this second hand axle 123b, be inserted through the inboard of minute hand pipe 134p described later, at its most advanced and sophisticated second hand of installing.On this second hand wheel 123, as shown in figure 15, owing to rotate with the one No. 5 gear 122 overlapping areas and become, with location light shielding part 123d (central angle of through hole 123c and through hole 123c is 60 °) that local spacing is different only at the circumferencial direction through hole 123c of (central angle alpha 2 is 30 °) 11 circles disposing uniformly-spaced.So during initial subtend through hole 123c, second hand points on schedule and constitutes like that behind the light shielding part 123d of the through hole 122c of above-mentioned the one No. 5 gear 122 subtend location.

Through hole 123c not only passes through the detection light of light detecting sensor 140, and one uses as the pilot hole when second hand wheel 123 is installed (hole of decision angle) at least.

In addition, in the inboard of these through holes 123c, delimit at the force application spring 123e of circumferencial direction at the outstanding oval arcuation of rotating shaft direction by incision hole 123f.This circular-arc force application spring 123e gives second hand wheel 123 application of forces at its rotating shaft direction.

Here, location light shielding part 123d leaves incision hole 123f at circumferencial direction and forms, and promptly interrupts forming on the separate areas at two incision hole 123f.Therefore, because can guarantee the distance of incision hole 123f and location light shielding part 123d, therefore detect light and can not use location light shielding part 123d occlusion detection light really around going into incision hole 123f in the zone of location light shielding part 123d.That is because easy generation be set form location light shielding part 123d leaving owing to detect the position in zone of the incision hole 123f that surveys around the flase drop of going into to cause of light, so, can positively locate by using the rotational angle position of light shielding part 123d location, this location second hand wheel 122.

In second hand wheel 123, as shown in figure 15, replace a plurality of (11) through hole 123 is set, as shown in figure 16, also can only stay the through hole 123c that is located at diametric(al) and location light shielding part 123d relative position, other through hole 123c cuts with incision hole 123g one respectively.Do like this, allow to detect the part that light passes through, make detect light pass through more really, in addition, can reduce the waste of making formation second hand wheel material.

Second drive system 130 as Fig. 3, Fig. 4 and shown in Figure 13, is made of following parts; By the stator 131a of approximate コ font, when the rotor 131c of configuration free to rotate between the drive coil 131b that reels on the leg sheet of the side of this stator 131a, magnetic pole the opposing party of this stator 131a constitutes minute hand with stepping motor 131; The two No. 5 gear 132 as neutral gear of the pinion 131d engagement of gear wheel in large diameter 132a and this rotor 131c; No. 3 gears 133 of gear (the 3rd detection gear) are transmitted in the conduct second of the pinion wheel 132b engagement of gear wheel in large diameter 133a and the two No. 5 gear 132; The minute gear 134 that the conduct the 4th of the small diameter gear 133b engagement of gear wheel in large diameter 134a and these No. 3 gears 133 detects with gear (second pointer gear); The middle (Ri Li as neutral gear of the small diameter gear 134b engagement of gear wheel in large diameter 135a and this minute gear 134) gear 135; The conduct the 5th of meshing the small diameter gear 135b of this neutral gear 135 detects the hour hand gear 136 of using gear (second pointer gear).

Here, the time minute hand with stepping motor 131, fixing on the plate 113 during its stator 131a is placed on, rotor 131c is supported by axle on middle plate 113 and upper casing 112, output control signal CTL1 according to control circuit 14 controls its rotation direction, rotational angle and velocity of rotation.

15 of 60 of the numbers of teeth of the two No. 5 gear 132 formation gear wheel in large diameter 132a, the numbers of teeth of small diameter gear 132b, axle is supported on middle plate 113 and the upper casing 112, its gear wheel in large diameter 132a and the time minute hand with the rotor 131c (pinion 131d) of stepping motor 131 engagement, the velocity of rotation of rotor 131c is decelerated to fixing speed.In addition,, also can divert above-mentioned the one No. 5 gear 122, that is the gear of through hole 122c is set as the two No. 5 gear 132.Thus, carry out the public of parts, can lower the cost of goods.

10 of 60 of the numbers of teeth of No. 3 gear 133 formation gear wheel in large diameter 133a, the numbers of teeth of small diameter gear 133b, one end of axial region is supported on the upper casing 112, the other end is with the state setting free to rotate of plate 113 in connecting, and the rotation of the two No. 5 gear 132 that slow down passes to minute gear 134.In addition, in No. 3 gears 133, as shown in figure 17, becoming in second hand wheel 123 and the one No. 5 gear 122 overlapping areas at the circumferencial direction through hole 133c of (central angle alpha 1 is 36 °) 10 circles disposing uniformly-spaced by rotating.This through hole 133c not only passes through the detection light of light detecting sensor 140, and one uses as the pilot hole when No. 3 gears 133 are installed (hole of decision angle) at least.

Minute gear 134,14 of 60 of the numbers of teeth of formation gear wheel in large diameter 134a, the numbers of teeth of small diameter gear 134b, the minute hand pipe 134p of the integrally formed small diameter gear 134b of portion in the central, lateral plan becomes approximate T word shape to form like that, then, the free rotational support of an end of minute hand pipe 134p on middle plate 113, the axial region of the other end be inserted through free to rotately hour hand gear 136 described later the time needle tubing 136p inside.In addition, minute hand pipe 134p connects lower casing 111, and is side-prominent at the literal dish of table, at its most advanced and sophisticated minute hand of installing.

In addition, on minute gear 134, as shown in figure 18, forming 3 oval arcuation through hole 134c, 134d, 134e at circumferencial direction by rotating in 122, No. 3 gear 133 overlapping areas of the 123, the one No. 5 gear of second hand wheel.Circular-arc through hole 134c and circular-arc through hole 134d separate formation with 30 ° central angle alpha 5, circular-arc through hole 134d and circular-arc through hole 134e, separate formation with 30 ° central angle alpha 6, in addition, circular-arc through hole 134e and circular-arc through hole 134c separate formation with 60 ° central angle alpha 7.That is, between circular-arc through hole 134e and circular-arc through hole 134c, form the wideest light shielding part A, forming than the narrow light shielding part B of above-mentioned light shielding part A width between circular-arc through hole 134c and the circular-arc through hole 134d and between circular-arc through hole 134d and the circular-arc through hole 134e.

In addition, circular-arc through hole 134c is formed with the narrow arc sections 134c3 of the width that is connected both by the rounded portions 134c1 of an end, the wide arc sections 134c2 of width that extends from the other end.The rounded portions 134c1 that delimit by the narrow arc sections 134c3 of this width not only makes detection light pass through, and uses as pilot hole (hole of decision angle) when minute gear 134 is installed.

Hour hand gear 136 forms 40 of the numbers of teeth of large gear 136a, portion's one is installed needle tubing 136p when cylindraceous in the central, this time needle tubing 136p inside be inserted through above-mentioned minute hand pipe 134p.Then, the time needle tubing 136p, be inserted through the dead eye 111a that on lower casing 111, forms, free to rotately supported by axle, in addition, its most advanced and sophisticated side connects lower casing 111, and is side-prominent to the literal dish of table, at its most advanced and sophisticated hour hands of installing.

In addition, on hour hand gear 136, as shown in figure 19, forming 3 oval arcuation through hole 136c, 136d, 136e at circumferencial direction by rotating in 122, No. 3 gears 133 of the 123, the one No. 5 gear of second hand wheel, minute gear 134 overlapping areas.Circular-arc through hole 136c and circular-arc through hole 136d, separate formation with 45 ° central angle alpha 8, circular-arc through hole 136d and circular-arc through hole 136e, separate formation with 60 ° central angle alpha 9, in addition, circular-arc through hole 136e and circular-arc through hole 136c, separate formation with 30 ° central angle alpha 10, and then the length of circular-arc through hole 136c, 136d, 136e is respectively 75 °, 60 °, 90 ° with central angle β 1+ β 2, β 3, β 4 and sets like that.That is, between circular-arc through hole 136e and circular-arc through hole 136c, form the narrowest light shielding part C of width, between circular-arc through hole 136c and circular-arc through hole 136d, form the light shielding part D wideer, between circular-arc through hole 136d and circular-arc through hole 136e, form the light shielding part E wideer than light shielding part D width than light shielding part C width.

In addition, circular-arc through hole 136c by the wide arc sections 136c2 of the width that is positioned at rounded portions 136c1, extend from the other end apart from the position of 1=7.5 ° of an end central angle β be connected the narrow arc sections 136c3 of width that both are positioned at the both sides of rounded portions 136c1 simultaneously and form.The rounded portions 136c1 that delimit by the narrow arc sections 136c3 of this width not only makes and detects light and pass through, and uses as pilot hole (hole of decision angle) during pin gear 136 when mounted.

Neutral gear, 10 of 42 of the numbers of teeth of formation gear wheel in large diameter 135a, the numbers of teeth of small diameter gear 135b, support with axle for the teat 111b that forms on lower casing 111 is free to rotate, gear wheel in large diameter 135a and the small diameter gear 134b engagement that on minute hand pipe 134p, forms, small diameter gear 135b and hour hand gear 136 (136a) engagement, the rotation of deceleration minute gear 134 is communicated to hour hand gear 136.

Light detecting sensor 140, as shown in Figure 4, form by light-emitting component 142 and light receiving element 144, the former is made of the light emitting diode that is installed on circuit substrate 141 fixing on the wall of upper casing 112, and the latter is made of the phototransistor that is installed on circuit substrate 143 fixing on the wall of lower casing 111 facing to this light-emitting component 142.

The anode of light-emitting component 142 with at one end with driving circuit 18 that the collector of pnp transistor Q2 is connected in the other end of resistive element R4 connect, plus earth connects the emitter of light receiving element 144 simultaneously.

The collector of light receiving element 144 is connected to control circuit 14.Become output line with the connecting line of this control circuit 14 to the control circuit of detection signal DT1.

The emitter of the transistor Q2 of driving circuit 18 connects the supply line of power source voltage Vcc, and base stage is connected to the output line of drive signal DR2 by resistive element R3.

That is light-emitting component 142 is connected to driving circuit 18, and is luminous from the drive signal DR2 of control circuit 14 output low levels the time.

In addition, as shown in Figure 4, the one No. 5 gear 122, second hand wheel 123, No. 3 gears 133, minute gear 134, hour hand gears 136 all are configured in position overlapped simultaneously in cross section view.So, the through hole 123c of the through hole 122c of the one No. 5 gear 122, the through hole 133c of No. 3 gears 133, second hand wheel 123, the through hole 134c (134d of minute gear 134,134e), the through hole 136c (136d of hour hand gear 136, when 136e) overlapping, the detection light that sends from light-emitting component 142 is received by light receiving element 144, and output indication second hand, minute hand, hour hands are just pointing to the signal of position on schedule.

And then light-emitting component 142 is configured in as resembling in the installation recess 112c of the first configuration portion that forms the upper shed of the outside of upper casing 112, installs on the bottom surface of recess 112c at this, has the circular through hole 112d of specified diameter.Because the detection light that sends from light-emitting component 142 has the character that expands to terminal expanded configuration, thus should circle through hole 112d be used to interdict the light of this expansion, only make the light brought together by, prevent that flase drop from surveying.

Equally, light receiving element 144 is configured in as resembling in the installation recess 111c of the first configuration portion that forms the upper shed of the outside of lower casing 111, installs on the bottom surface of recess 111c at this, has the circular through hole 111d of specified diameter.This circle through hole 111d is used for as far as possible only allowing and passes through from light-emitting component 142 light that send, that come by above-mentioned through hole, prevents that flase drop from surveying.

In the occasion that 122, No. 3 gears 133 of the one No. 5 gear, second hand wheel 123, minute gear 134, hour hand gear 136 are installed, the order assembling makes the register pin of regulation run through the circular through hole 111d of lower casing 111, each through hole of conduct location usefulness and the circular through hole 112d of upper casing 112.Then, after being integral in conjunction with upper casing 112 and lower casing 111, extract register pin, light-emitting component 142 is installed in recess 112c is installed at through hole 112d place, in addition, light receiving element 144 is installed in recess 111c is installed at through hole 111d place.

Thus, through hole 112d and through hole 111d can be prevented the inner space that outside light intrusion delimited by upper casing 112 and lower casing 111 by total blockage.Therefore, can prevent, simultaneously,, can carry out intensification, the miniaturization of device because therefore the pilot hole during the dual-purpose assembling and detect the through hole that light is used is compared with the occasion that these holes are set respectively because exterior light is invaded the flase drop cause surveys.

Manual correction system 150, as shown in Figures 3 and 4, constitute by the neutral gear 135 of the gear wheel in large diameter 136a of engagement small diameter gear 134b of above-mentioned minute gear 134 and hour hand gear 136 and the manual correction axle 151 of gear 151a with gear wheel in large diameter 135a of this neutral gear 135 of engagement.This manual correction axle 151, be configured in the outside of upper casing 112, by can directly stretching out, connect the opening 112e that forms at upper casing 112, the cylindrical portion 151c of the teat 111e axle support that forms at lower casing 111 be formed, by the user at the lower zone formative gear 151a of this cylindrical portion 151c with the head 151b of finger contact with from this head 151b.

Manual correction axle 151 can constitute like that to rotate with minute gear 134 same-phases, when driving minute gear 134, rotate by neutral gear 135 and minute gear 134 same-phases by above-mentioned second drive system 130, second drive system 130 by with finger head 151b being rotated, can be used the manual correction pointer position when being failure to actuate simultaneously.

As mentioned above, because the axle 123b of second hand wheel 123 is inserted through the minute hand pipe 134p of minute gear 134, because the minute hand pipe 134p of minute gear 134 is inserted through the time needle tubing 136p of hour hand gear 136, therefore second hand wheel 123, minute gear 134, hour hand gear 136 rotary middle spindle separately are coaxial, in addition, when showing constantly, second hand turn around between 60 seconds, minute hand turn around between 60 minutes, hour hands turned around between 12 hours and drive like that.

The point of the minute hand pipe 134p of minute gear 134 and hour hand gear 136 the time needle tubing 136p point on, as shown in figure 20, be formed on diametric(al) and form Rack as the groove 134g of first sign that is used to locate extension with as the groove 136g of second sign.Set for example 12: 00 moment of indication regulation when making these grooves 134g and groove 136g also in alignment then.

By setting such witness marker, even with upper casing 111 and lower casing 112 minute gear 134 and hour hand gear 136 after cover, because know the general moment of groove 134g and groove 136g and words indicative of settings in alignment, therefore according to this state minute hand and second hand can be installed easily, do not need other position to coincide and the location confirmation operation, can shorten the manufacturing time and the supervision time of making on line and the inspection line.In addition, as witness marker, be not limited to above-mentioned groove, sign such as projection also can.

Figure 21 is the process flow diagram that the pointer position of expression automatic table of corrections shown in Figure 1 detects the action of handling.

Control circuit 14, drive the pointer drive system handle according to the detection of reference position checkout equipment detect the reference position of pointer gear after, etalon time electric wave signal according to bar-shaped antenna 1110 of the ferrite of electric wave receiving system and 1130 receptions of long wave receiving circuit is proofreaied and correct the timer time of internal table 1401, sets the pointer position of pointer gear according to the timer time of internal table 1401.

Illustrate that with reference to Figure 21 pointer position detects processing.

Set the time-division by control circuit 14 and use pulse signal output mode (ST101), drive signal DR2 is in driving circuit 18 output low levels.Thus, transistor Q2 conducting is that light emitting diode sends detection light from light-emitting component 142.

Then, from control circuit 14 output control signal CTL1, second hand is the phototransistor conducting with stepping motor 121 by pulsed drive (ST102) light receiving element, carries out detection signal DT1 and whether switches to low level judgement (ST103) from high level (power source voltage Vcc level).

Here, in the occasion that keeps the high level former state from the detection signal DT1 of phototransistor, at every turn when carrying out the stepper drive add pulse and count, carry out whether switching to low level judgement (ST104～ST106) from high level (power source voltage Vcc level) from the detection signal DT1 of phototransistor.

Reach 9 and switch to low level occasion from high level (power source voltage Vcc level) in umber of pulse from the output of the detection signal DT1 of phototransistor, the time minute hand with stepping motor 131 be driven 1 the step (pulse) (ST107), thereafter the stepper drive second hand is with stepping motor 121 (ST102) once more, and second hand wheel 123 is driven rotation.

On the other hand, if judge that at step ST103 the detection signal DT1 that is produced by phototransistor switches to low level from high level, then fast feed second hand wheel 123 (step ST108) carries out and the comparison (ST109) of the output mode of storage in advance in control circuit 14.

At comparative result is the output mode that obtains and the inconsistent occasion of output mode of storage, returns step ST108, and the fast feed second hand wheel 123 once more.

On the other hand, the consistent occasion of output mode in output mode that obtains and storage, this moment (even do not switch to low level occasion at level from the detection signal DT1 of phototransistor in the 5th step, then phototransistor is outputted to the low level moment), the output of stop control signal CTL1 stops the drives of second hand wheel 123.Then, second hand wheel 123 stops at the position of making zero (ST110).At this moment, proofread and correct second hand to stipulating constantly the position of (0 second) for example on schedule, the starting point retrieval process of second hand finishes.

Then, output is from the control signal CTL2 of control circuit 14, only to the time minute hand output frequency stipulated with stepping motor 131 usefulness carry out pulsed drive, fast feed minute gear 134 (ST111).

Then, carry out from the comparison (ST112) of the output mode of storage in advance in the output mode of phototransistor and the control circuit 14.

At comparative result is the output mode that obtains and the inconsistent occasion of output mode of storage, returns the processing of step ST111, and the fast feed minute gear 134 once more.

On the other hand, at the comparative result of step ST112 is the output mode that obtains and the consistent occasion of output mode of storage, at this constantly, and the output of stop control signal CTL2, minute hand stops the driving (ST113) of minute gear 134 and hour hand gear 136 with stepping motor 131 when stopping.

Here, the output mode by output mode and storage in advance relatively to the time minute gear position probing handle by any of 3 kinds of patterns that coincide and undertaken.

That is because the output mode of the phototransistor of minute gear 134, shown in Figure 22 (a), the width as the pass of light shielding part effect becomes by two B portion and mutual patterns that occur of A portion that width is wide that width is narrow.In addition, because the output mode of the phototransistor of hour hand gear 136, shown in Figure 22 (b), the width that the light shielding part effect is closed becomes the D portion, E portion, C portion of 3 kinds with the mutual pattern that occurs of predetermined distance, the output mode that both synthesize, shown in Figure 22 (c), become pattern by D portion, B portion and the combination of A portion; The pattern of E portion, B portion and the combination of A portion; 3 kinds of patterns that occur with predetermined distance with the pattern of C portion, B portion and the combination of A portion.

In addition, the part of the pattern that becomes out in pattern shown in Figure 22 becomes because the light shielding part of No. 3 gears 133 becomes the part of pass, so become the pattern that tooth comes off because in fact have.

In addition, for example as the reference position of minute gear 134 and hour hand gear 136, as shown in figure 22, set the position of 0: 00,4: 00 and 8: 00.

If in advance the time by the pattern that is combined to form that makes D portion, B portion and A portion confirmed for example as 4: 00; The time by the pattern that is combined to form that makes E portion, B portion and A portion confirmed for example as 8: 00; Confirm by time of the pattern that is combined to form that makes C portion, B portion and A portion for example as 12: 00 words, when detecting any one of these patterns, minute hand stops with stepping motor 131 when making, can be in minute gear 134 and hour hand gear 136 that is minute hand and the hour hands time correction moment to regulation.

Then, after minute hand stops with stepping motor 131 when making, the drive signal DR2 that produces owing to control circuit 14 is switched to high level.

Thus, the transistor Q2 of driving circuit 18 closes, luminous the stopping (ST114) of light emitting diode, the finish time correct operation.

In addition, when powering up to motor, for the time minute gear the starting point retrieval process shorten such delivery position TS, 10: 30 occasion is set in explanation in the present embodiment with reference to Figure 22.

For example user one connects external power source 201, and control circuit 14 just carries out the identical processing of phase place, second hand starting point retrieval process, minute hand starting point retrieval process and coincide constantly and handle.Be 10: 30 occasion as the delivery set positions, as shown in figure 22, from delivery position TS drive hour hand gear and the time minute gear, connect detect light after, minute hand when stopping to carry out second hand and plays point retrieval.Minute gear rotates when making thereafter, by detecting C portions with light sensor part 140, detects about position at 12 o'clock, by stopping in the moment that detects B portion and A portion, the time minute hand when being set in the reference position 12 of regulation 00 minute.

For example, this position of 10: 30 is the position that detects the necessary minimal necessary on-off pattern that is referenced when carrying out the starting point retrieval process when minute gear is to the reference position when setting.Pointer when delivering by setting is in this position, and the time of starting point retrieval process is the shortest.

Figure 23 is the process flow diagram that is used to illustrate the molar behavior of automatic table of corrections shown in Figure 1.With reference to Figure 23, the action of the integral body of automatic table of corrections 1 is described.

For example, set etalon time electric wave signal, receive the AM radio broadcasting station of two transmitting stations, for example the Tokyo NHK first broadcasting JOAK or Osaka NHK first broadcasting JOBK for 40kHz or 60kHz.

At step ST201, control circuit 14 output control signal CTL1130 are in long wave receiving circuit 1130 and receive the state, acceptance criteria time wave signal opened during the initial stage.

At this moment, for example export the control signal CTL1123 of the receive frequency of switching standards time wave signal, make standard wave frequency switching part 1120 switch to 40kHz or 60kHz to receive frequency, receive the good side's of accepting state etalon time electric wave signal.

Say that in detail at first control circuit 14 makes the control signal CTL1123 of the etalon time electric wave signal of receive frequency 40kHz to 1120 outputs of standard wave frequency switching part.Standard wave frequency switching part 1120, one this control signal of input CTL1123 with regard to splicing ear Ta and terminal Tb, are set at 40kHz to resonant frequency.In long wave receiving circuit 1130, decode according to the etalon time electric wave signal of the 40kHz that receives by the bar-shaped antenna 1110 of ferrite, etalon time information is exported to control circuit 14 as signal S1130.

For example, control circuit 14 in occasion that can not normal decoder etalon time information, makes the control signal CTL1123 of the etalon time electric wave signal of receive frequency 60kHz to 1120 outputs of standard wave frequency switching part.Standard wave frequency switching part 1120, one this control signal of input CTL1123 just set terminal Ta and terminal Tb is a nonconducting state, and resonant frequency is set at 60kHz.In long wave receiving circuit 1130, decode according to the etalon time electric wave signal of the 60kHz that receives by the bar-shaped antenna 1110 of ferrite, etalon time information is exported to control circuit 14 as signal S1130.

The changing method of two frequencies is not limited to above-mentioned form.Also can receive the etalon time electric wave signal of two frequencies in advance, set the good side's of accepting state frequency.

At step ST202, control circuit 14 is proofreaied and correct the time information of internal table 1401 according to the signal S1130 from 1130 outputs of long wave receiving circuit.At this moment, on internal table 1401, set year information as etalon time information, week information, the time information, branch information, second information.

At step S203, control circuit 14 carries out by the demonstration moment of pointer and the demonstration correction constantly of display 30 according to etalon time information-driven display part 20 second hand index systems 120 for example as described above, the minute hand drive system 130 of internal table 1401 timing.

At step ST204, control circuit 14 is according to the etalon time information (being also referred to as time information) of internal table 1401 timing, and whether differentiate is the predefined moment (setting constantly).Control circuit 14 for example differentiating for not being to set occasion constantly, drives second hand drive system 120 and minute hand drive system 130, carries out showing by the moment of pointer.

On the other hand, at step ST204, control circuit 14 is to set occasion constantly according to the etalon time information (being also referred to as time information) of internal table 1401 timing being judged to be, and carries out time correction.Advance to step ST205.

At step ST205, whether the accepting state of control circuit 14 discrimination standard time wave signals is good.At this moment, for example as mentioned above, whether the accepting state of the etalon time electric wave signal of differentiation 40kHz and 60kHz is good.

At step ST205, judging good, the occasion that can not normal decoder etalon time information of accepting state, carry out the AM radio broadcast wave according to the time information of internal table 1401 timing and receive control (ST206) regularly.

Control circuit 14, as receiving timing controlled, for example according to the time information of internal table 1401 timing from comprise every on schedule time, for example every tens of seconds forward direction AM radio receiver circuits 1150 outputs on schedule make the control signal CTL1150 that receives the AM radio broadcast wave.

Usually, because quartzy table has tens of seconds precision of monthly error,, then can receive the information of giving the correct time really if by the above-mentioned reception that begins radio broadcast wave like that.

In the present embodiment, because AM radio broadcast wave that can two kinds of frequencies of selective reception, so control circuit 14 can make the AM radio broadcast wave that receives the good side of accepting state export control signal CTL1143 like that, sets AM radio broadcast wave receive frequency.

AM radio receiver circuit 1150, one input expression receives when opening the control signal CTL1150 of state, just the AM radio broadcast wave that receives according to the bar-shaped antenna 1110 of ferrite amplifies with amplifier 1151, carry out the filtering of quartzy filter section 1152, carry out detection, output signal S1150 with detecting circuit 1153.Filter section 1160 is only exported (ST207) to the information of giving the correct time as signal S1160 to control circuit 14 according to signal S1150.

At this moment, the frequency of AM radio broadcast wave and etalon time electric wave signal is because there be poor about 10 times, even therefore almost do not disturb with bar-shaped antenna 1110 common the receptions also of ferrite.

Control circuit 14 according to signal S1160, for example detects the rising of frequency 880Hz, gets this rise time as each (00 minute and 00 second) on schedule.At this moment because internal table 1401 according to the etalon time electric wave signal as time information timing year information, month information, day information, the time information, branch information, therefore, control circuit 14 is according to giving the correct time information correction information second (ST208).

At step ST209, control circuit 14 according to the time information of internal table 1401 timing, drives second hand drive system 120, proofreaies and correct to show constantly.Advance to step ST204.

On the other hand, at step ST205, control circuit 14, accepting state at criterion time wave signal is good occasion, according to proofreading and correct the time information (ST210 of internal table 1401 timing by the etalon time electric wave signal that long wave receiving circuit 1130 receives by the bar-shaped antenna 1110 of ferrite, ST211), time information according to above-mentioned internal table 1401 timing, drive second hand drive system 120 and the time minute hand drive system 130, proofread and correct the demonstration moment (ST212), turn back to step ST204 by pointer.

As mentioned above, according to first embodiment, because be provided with internal table 1401, carry out the display part 20 of demonstration constantly, the bar-shaped antenna 1110 of ferrite of can acceptance criteria time wave signal and comprising the broadcasting wave of the information of giving the correct time in regulation constantly, switch the standard wave frequency switching part 1120 of the receive frequency of a plurality of various criterion electric waves, receive with the bar-shaped antenna 1110 of ferrite, generate long wave (standard wave) receiving circuit 1130 of etalon time signal according to etalon time electric wave signal via 1120 inputs of standard wave frequency switching part, be extracted the AM radio receiver circuit 1150 of the information of giving the correct time according to the broadcasting electricity that receives with the bar-shaped antenna 1110 of ferrite, with control circuit 14, described control circuit 14 is in the early stage the time, the time information of etalon time signal correction internal table 1401 timing that generate according to long wave (standard wave) receiving circuit 1130, the corresponding setting constantly because the accepting state of 1130 pairs of etalon time electric wave signals of long wave (standard wave) receiving circuit, the time information of information correction internal table 1401 timing of giving the correct time that etalon time electric wave signal that generates according to long wave (standard wave) receiving circuit 1130 or AM radio receiver circuit 1150 extract, proofread and correct the moment demonstration of being undertaken by display part 20 according to the time information of internal table 1401 timing, even so, also can carry out time correction by the information of giving the correct time that in noise, comprises strong AM radio broadcast wave in the bad occasion of the reception environment of etalon time electric wave signal.

In addition, control circuit 14, the accepting state that is engraved in when predefined by 1130 pairs of etalon time electric wave signals of long wave (standard wave) receiving circuit is not good occasion, because the information of giving the correct time according to 1150 generations of AM radio receiver circuit, proofread and correct the time information of internal table 1401 timing, proofread and correct the demonstration moment of being undertaken according to the time information of internal table 1401 timing by display part 20, even so, also can carry out time correction in the bad occasion of the reception environment of etalon time electric wave signal.

In addition,, therefore, do not need newly to be provided with antenna, can realize the miniaturization of antenna part for receiving the AL radio broadcast wave because by bar-shaped antenna 1110 acceptance criteria time wave signal and the broadcasting waves of common ferrite.

In addition, antenna part, because be provided with the standard wave frequency switching part 1120 of the receive frequency that can set a plurality of different standard waves, control circuit 14 makes standard wave frequency switching part 1120 set the good frequency of accepting state according to the accepting state of etalon time electric wave signal, therefore can receive the good etalon time electric wave signal of accepting state.

In addition, because broadcasting wave, as the information of giving the correct time, at least be included in the signal on schedule of whenever synchronous on schedule predefined frequency, AM radio receiver circuit 1150 comprises the quartzy filter section 1152 of extracting the signal on schedule of frequency according to broadcasting wave, control circuit 14, the time information of 1401 timing of signal correction internal table on schedule of extracting according to quartzy filter section 1152 is even therefore noisy occasion in broadcasting wave also can be carried out time correction according to the information of giving the correct time.

Second embodiment

The automatic table of corrections that this second embodiment relates to for example has near every broadcasting wave that receives the radio broadcasting that comprises the information of giving the correct time etc. on schedule, supply with the electric power that power supply internally switches to external power source according to time information, the electric power of the information correction internal table timing of giving the correct time of the broadcasting wave that receives supplies with, carries out functions such as simulation to the time information use pointer of internal table timing shows constantly.

Specifically, use internal table to carry out timing, behind broadcasting waves such as reception radio, upgrade the clocking information of internal table simultaneously according to the initial stage time information.

In addition, built-in internal table drives special-purpose internal cell (internal electric source), only carries out moment demonstration from the external power source supply capability time.

The analog-driven mechanism of this moment combination is to have in reception the driving mechanism that comprises the standard wave (being also referred to as the etalon time electric wave signal) of etalon time signal, carries out the pointer position measuring ability that uses in the radio wave correction clock of time correction according to the etalon time electric wave signal.Therefore, the automatic table of corrections that this second embodiment relates to also coincide according to the time correction function of broadcasting wave, as mentioned above, has the time correction function according to the etalon time electric wave signal.

In addition, primary position for example carries out in production process pin, with the state of the information synchronization of giving the correct time of broadcasting wave under take out external cell (external power source) delivery.

Then, the user installation external cell carries out the point retrieval that rises of pointer position, carries out automatic setting to the pointer position according to the information of internal table.Under this state, receive the signal on schedule of broadcasting wave, proofread and correct the error that takes place on the internal table, carry out according to this control information to pin.

Figure 24 is the system construction drawing of second embodiment of the automatic table of corrections that the present invention relates to of expression.In Figure 24, has identical symbolic representation with the automatic table of corrections 10 identical component parts of Fig. 1

The automatic table of corrections 10A of Figure 24 have electric wave receiving system 11, time correction switch 12, oscillatory circuit 13, control circuit 14A, driving circuit 15, light-emitting component 16, buffer circuits 17, driving circuit 18, power supply switching part 19, display part 20, display 30, internal cell 40, external cell configuration part 41, second hand with motor 121, the time minute hand electricity consumption motivation 131, light detecting sensor portion 140, pnp transistor npn npn Q1, Q2 and resistive element R1～R4.

The automatic table of corrections 10 basic differences of the automatic table of corrections 10A of Figure 24 and Fig. 1 are, further have power supply switching part 19, internal cell 40, external cell configuration part 41 as inscape, the control of control circuit 14A and the control circuit of Fig. 1 14 have difference.

Below be that the center describes with the automatic table of corrections 10A of Figure 24 and the automatic table of corrections 10 different points of Fig. 1.

Control circuit 14A, in the time of in the early stage, for example before delivery, externally set the occasion that external cell obtains the initial stage time information on the battery configuration part 21, acceptance criteria time wave signal, correction as the year information of the temporal information of internal table 1401 timing, month information, day information, week information, the time information, branch information and second information, according to the time information of internal table 1401 timing, carry out the such demonstration of aftermentioned correction constantly.

In this occasion, control circuit 14A, for example export the control signal CTL1123 of the receive frequency of switching standards time wave signal, making standard wave frequency switching part 1120 switch receive frequency is 40kHz or 60kHz, receives the good side's of accepting state etalon time electric wave signal.

In addition, control circuit 14A carries out the time correction operation according to the etalon time information (being also referred to as time information) of internal table 1401 timing in the predefined moment (setting constantly).At this moment, control circuit 14 once constantly receiving broadcasting wave on AM radio receiver circuit 1150 to setting, according to the information of extracting of giving the correct time, carries out time correction.

Control circuit 14A, after obtaining correct initial stage time information, 21 take out external cells in when delivery from the external cell configuration part, stop hand motion control, accept the electric power of internal cell 20, timing internal table 1401 by power supply switching part 19, and, receive the information of giving the correct time of broadcasting wave at interval with official hour, carry out time correction, guarantee inner precision constantly according to the information of extracting of giving the correct time.

Then, the user sets (setting again) external cell, carries out the point retrieval that rises of pointer position, and automatic setting is according to the pointer position of the information of internal table.Under this state, receive the signal on schedule of radio broadcast wave, proofread and correct the error that internal table takes place, carry out according to this error to pin.

In addition, control circuit 14A is in the occasion that can not receive radio broadcast wave, and keeping inner precision constantly is the precision of quartz crystal (approximately ± 20 second/month error).

Control circuit 14A receives timing controlled when receiving the AM radio broadcast wave.

Say in detail, control circuit 14A, as receiving timing controlled, for example make from the time information according to internal table 1401 timing comprising every stipulated time on schedule, for example every tens of seconds preceding control signal CTL1150 of AM radio broadcast wave that receive on schedule are to 1150 outputs of AM radio receiver circuit.

Usually, because quartzy table has the precision of monthly error about 20 seconds,, can receive the information of giving the correct time really if begin the reception of radio broadcast wave as described above.

In addition, control circuit 14A, output control signal CTL1143 makes the AM radio broadcast wave that receives the good side of accepting state, sets the receive frequency of AM radio broadcast wave.

Control circuit 14A according to signal S1160, for example detects the rising of frequency 880Hz, gets this rise time as each (00: 00) on schedule.At this moment, internal table 1401 according to the etalon time electric wave signal as time information timing year information, month information, day information, the time information, branch information, second information, control circuit 14A is according to giving the correct time information correction information second.

In the present embodiment, the reception of etalon time electric wave signal, receive only for the first time externally set the A-stage of external cell on the battery configuration part 21, after setting the initial stage time information on the internal table 1401, receive radio broadcast wave, carry out the time correction of internal table 1401 and constitute like that according to the pointer position adjustment (to pin) of the time information of internal table 1401.

But, for example control circuit 14A can constitute like this, as described above to AM radio receiver circuit 1150 output control signal CTL1150, time information according to internal table 1401 timing makes from for example each received the AM radio broadcast wave before tens of seconds on schedule comprising each stipulated time on schedule, a few days or several months once are being with than the time that is easier to acceptance criteria time wave signal simultaneously, the acceptance criteria time wave signal that for example grades morning 2: 40 is proofreaied and correct moment of internal table 1401.

In addition, for example control circuit 14A can constitute like this, according to the accepting state of etalon time electric wave signal, carry out time correction according to the etalon time signal of etalon time electric wave signal generation or the information of giving the correct time of AM radio receiver circuit 1150 extractions according to long wave receiving circuit 1130.

In this occasion, for example to be engraved in the accepting state of etalon time electric wave signal when setting be not good occasion to control circuit 14A, time information according to internal table 1401 timing, on AM radio receiver circuit 1150, receive the AM radio broadcast wave that comprises the information of giving the correct time, the extraction information of giving the correct time, according to the time information of this information correction internal table 1401 of giving the correct time, second information of saying so in detail.

Control circuit 14A, accepting state at criterion time wave signal is good occasion, proofread and correct the time information of internal table 1401 timing according to the etalon time electric wave signal that receives by the bar-shaped antenna 1110 long wave receiving circuits 1130 of ferrite, time information according to internal table 1401 timing, drive second hand drive system 120 and the time minute hand drive system 130, proofread and correct use pointer demonstration constantly.

Below, illustrate in greater detail the function of control circuit 14A.Control circuit 14A, state in the early stage for example is when setting external cell, and in the occasion of operating time correction switch 12, the starting point of carrying out pointer gear detects to be handled, and exports the drive signal CTL1 and the CTL2 of the time information of corresponding internal table 1401 timing, carries out showing by the moment of pointer.

Control circuit 14, the phase place of handling minute gear when carrying out and second hand wheel in the position probing of pointer coincide handle, the starting point retrieval process of second hand, the time minute hand the starting point retrieval process; After detecting the position of each pointer gear, set pointer constantly to regulation.

Phase place coincide to be handled, for example the time transmittance section that is provided with on the transmittance section, second hand wheel that are provided with on minute gear minute gear and second hand wheel when being positioned at the position that the light that sends from light-emitting component 142 can be connected and driving like that.

The starting point retrieval process of second hand makes light receiving element 144 accept the light that sends from light-emitting component 142 by the light shielding part that is provided with and transmittance section on second hand wheel, according to the on-off pattern retrieval starting point of light.

The time minute hand the starting point retrieval process, as described later, make light receiving element 144 by the time light shielding part that is provided with on the minute gear and transmittance section accept the light that sends from light-emitting component 142, according to the on-off pattern retrieval starting point of light.

Power supply switching part 19, externally the occasion of external cell is not set in battery configuration part 41, removing from the simulation display part by electric power as the internal cell 40 of internal electric source, supply control circuit 14A, external cell one as the external power source of external cell configuration part is set, just replace supply, the electric power supply that is come by external cell is comprised each parts of simulating display part 20 by the electric power of internal cell 40.

Figure 25 is the process flow diagram that is used to illustrate the molar behavior of automatic table of corrections shown in Figure 24.With reference to Figure 25, the action of the integral body of automatic table of corrections 10A is described.

For example, for the etalon time electric wave signal of 40kHZ or 60kHz, for example Tokyo NHK first broadcasts JOAK or Osaka NHK first broadcasts JOBK to set the AM radio broadcasting station that receives two transmitting stations.

At step ST301, ST302, control circuit 14A output is set the control signal CTL1130 of external cell during the initial stage on the external cell configuration part 41 before delivery, makes long wave receiving circuit 1130 become reception and opens state, makes acceptance criteria time wave signal.

At this moment, output for example makes the control signal CTL1123 of the receive frequency of switching standards time wave signal, and making standard wave frequency switching part 1120 switch receive frequency is 40kHz person 60kHz, receives the good side's of accepting state etalon time electric wave signal.

Say that in detail at first control circuit 14A makes the control signal CTL1123 of the etalon time electric wave signal of receive frequency 40kHz to 1120 outputs of standard wave frequency switching part.Standard wave frequency switching part 1120, one this control signal of input CTL1123 with regard to splicing ear Ta and terminal Tb, are set at 40kHz to resonant frequency.In long wave receiving circuit 1130, decode according to the etalon time electric wave signal of the 40kHz that receives by the bar-shaped antenna 1110 of ferrite, etalon time information is exported to control circuit 14A as signal S1130.

For example, control circuit 14A in occasion that can not normal decoder etalon time information, makes the control signal CTL1123 of the etalon time electric wave signal of receive frequency 60kHz to 1120 outputs of standard wave frequency switching part.Standard wave frequency switching part 1120, one this control signal of input CTL1123 just set terminal Ta and terminal Tb is a nonconducting state, and resonant frequency is set at 60kHz.In long wave receiving circuit 1130, decode according to the etalon time electric wave signal of the 60kHz that receives by the bar-shaped antenna 1110 of ferrite, etalon time information is exported to control circuit 14A as signal S1130.

At step ST303, control circuit 14A proofreaies and correct the time information of internal table 1401 according to the signal S1130 as the initial stage time information from 1130 outputs of long wave receiving circuit.At this moment, on internal table 1401, set year information as etalon time information, week information, the time information, branch information, second information.

At step S304, control circuit 14A carries out by the demonstration moment of pointer and the demonstration correction constantly of display 30 according to etalon time information-driven display part 20 second hand index systems 120 for example as described above, the minute hand drive system 130 of internal table 1401 timing.

At step ST305～ST307,, just give circuit supply capability, the moment of timing internal table 1401 by internal cell 40 external cell one taking-up from the external cell configuration part.In addition, at this moment, control circuit 14A stops the moment display driver control of display part 20.

Then, at step ST308, control circuit 14A with official hour at interval, for example according to per 12 hours of the time information of internal table 1401 timing, makes the control signal CTL1150 that receives the AM radio broadcast wave to 1150 outputs of AM radio receiver circuit.

In the present embodiment, because the AM radio broadcast wave of two kinds of frequencies of selective reception, therefore control circuit 14A output makes the control signal CTL1143 of the AM radio broadcast wave that receives the good side of accepting state, sets the receive frequency of AM radio broadcast wave.

AM radio receiver circuit 1150, one input expression receives the control signal CTL1150 of the state of opening, just amplify with amplifier based on the AM radio broadcast wave that receives with the bar-shaped antenna 1110 of ferrite, use quartzy filter section 1152 to carry out filtering, use detecting circuit 1153 to carry out detection, output signal S1150.Filter section 1160 is only exported (ST309) to the information of giving the correct time as signal S1160 to control circuit 14A according to signal S1150.

At this moment because with internal table 1401 according to the timing of etalon time electric wave signal as the year information of time information, month information, day information, the time information, branch information, so control circuit 14A is according to giving the correct time information correction information second (ST310).Certainly, constitute also passable like that according to signal S1160 timing information or branch information.

At step ST311～ST313, the user sets the words of (setting again) external cell, just replace supplying with by the electric power of internal cell 20, the electric power that supply is come by external cell, control circuit 14A drives second hand index system 120, minute hand drive system 130, carry out the point retrieval that rises of pointer position, automatic setting is according to the pointer position of the information of internal table.

Thereafter, at step ST314, control circuit 14A carries out the timing controlled that the AM radio broadcast wave receives according to the time information of internal table 1401 timing.

Control circuit 14A, as receiving timing controlled, for example make from the time information according to internal table 1401 timing comprising every stipulated time on schedule, for example every tens of seconds preceding control signal CTL1150 of AM radio broadcast wave that receive on schedule are to 1150 outputs of AM radio receiver circuit.

Usually, because quartzy table has the precision of monthly error about tens of seconds, so, can receive the information of giving the correct time really if begin the reception of radio broadcast wave as described above.

In the present embodiment, because AM radio broadcast wave that can two kinds of frequencies of selective reception, so control circuit 14A can export the control signal CTL1143 that makes the AM radio broadcast wave that receives the good side of accepting state, set the receive frequency of AM radio broadcast wave.

AM radio receiver circuit 1150, one input expression receives the control signal CTL1150 of the state of opening, just the AM radio broadcast wave that receives based on the bar-shaped antenna 1110 of ferrite amplifies with amplifier 1151, carry out the filtering of quartzy filter section 1152, carry out detection, output signal S1150 with detecting circuit 1153.Filter section 1160 is only exported (ST315) to the information of giving the correct time as signal S1160 to control circuit 14A according to signal S1150.

Control circuit 14A according to signal S1160, for example detects the rising of frequency 880Hz, gets this rise time as each (00 minute and 00 second) on schedule.At this moment because internal table 1401 according to the etalon time electric wave signal as time information timing year information, month information, day information, the time information, branch information, therefore, control circuit 14 is according to giving the correct time information correction information second (ST316).

At step ST317, control circuit 14A according to the time information of internal table 1401 timing, drives second hand drive system 120, proofreaies and correct to show constantly.Turn back to the processing of step ST313.

As mentioned above, according to second embodiment, because internal table 1401 is set, carry out the display part DSPL of demonstration constantly, the bar-shaped antenna 1110 of ferrite of can acceptance criteria time wave signal and comprising the broadcasting wave of the information of giving the correct time in regulation constantly, switch the standard wave frequency switching part 1120 of the receive frequency of a plurality of various criterion electric waves, according to what receive with the bar-shaped antenna 1110 of ferrite, generate long wave (standard wave) receiving circuit 1130 of etalon time signal via the etalon time electric wave signal of standard wave frequency switching part 1120 inputs, extract the AM radio receiver circuit 1150 of the information of giving the correct time according to the broadcasting wave that receives with the bar-shaped antenna 1110 of ferrite, with control circuit 14A, described control circuit 14A is after obtaining correct initial stage time information, during delivery from the external cell configuration part 41 words of taking out external cells, stop pointer running control, internal table 1401 when accepting the kilowatt meter of internal cell 40 by power supply switching part 19, and, receive the information of giving the correct time of radio broadcast wave at interval with official hour, carry out time correction according to the information of extracting of giving the correct time, guarantee inner precision constantly, set the words of external cell again, carry out the point retrieval that rises of pointer position, automatic setting is according to the pointer position of the information of internal table, next receives the signal on schedule of AM radio broadcast wave at this state, just proofread and correct the error that takes place in the internal table, carry out pin according to this control information, so can be in the relatively shorter time, and no matter the reception environment of etalon time electric wave signal easy affected by noise can positively carry out automatic time correction.

That is, in the present embodiment, time information uses public broadcastings such as radio or TV, and utilize and launch the big broadcasting station of output power, in addition, wireless frequency band is because the specification condition of electric wave is by strict regulations, therefore can be suitable for the radio circuit that reception environment such as noise is well safeguarded, circuit products and the circuit that can realize having the cheapness of actual effect constitute.

And, can easily realize the reception in travelling of standard wave difficulty, the automatic table of corrections of vehicle mounted, can enlarge the selection decision that utilizes scope of automatic table of corrections.

In addition,, therefore, do not need newly to be provided with antenna, can make the antenna part miniaturization for receiving the AM radio broadcast wave because use bar-shaped antenna 1110 acceptance criteria time wave signal and the broadcasting waves of common ferrite.

In addition, antenna part, setting can be set the standard wave frequency switching part 1120 of the receive frequency of a plurality of different standard waves, because control circuit 14A makes standard wave frequency switching part 1120 set the good frequency of accepting state according to the accepting state of etalon time electric wave signal, therefore can receive the good etalon time electric wave signal of accepting state.

In addition, because broadcasting wave, as the information of giving the correct time, at least the signal on schedule that comprises synchronous predefined frequency at each on schedule, AM radio receiver circuit 1150, comprise the quartzy filter section 1152 of extracting the signal on schedule of frequency according to broadcasting wave, control circuit 14 is according to the time information of 1401 timing of signal correction internal table on schedule of quartzy filter section 1152 extractions, so even noisy occasion also can be carried out time correction according to the information of giving the correct time in broadcasting wave.

In addition, the invention is not restricted to present embodiment, can carry out the various changes that are fit to arbitrarily.

In the present embodiment, the simulation of carrying out by pointer as display part 20 shows, but is not limited to this form, and the display part that digital moment of carrying out liquid crystal indicator etc. shows for example also can be set.

In addition, carry out the setting moment of time correction after carrying out the setting moment of time correction behind the acceptance criteria time wave signal and receiving the broadcasting wave that comprises the information of giving the correct time, be not limited to above-mentioned form.

In addition, the AM radio broadcasting station of AM radio receiver circuit reception is not limited to above-mentioned form.

Claims

1. automatic table of corrections is characterized in that having:

Internal table,

Carry out the moment display device of demonstration constantly,

At least receive the antenna part of the broadcasting wave that comprises the information of giving the correct time constantly in regulation,

The broadcasting wave that receives according to above-mentioned antenna part extracts the broadcasting wave receiving equipment of the information of giving the correct time,

At least the time information of the above-mentioned internal table timing of the information correction that gives the correct time of extracting according to above-mentioned broadcasting wave receiving equipment, make above-mentioned moment display device show the opertaing device of the time information that above-mentioned internal table timing is proofreaied and correct once the incident that regulation takes place,

Above-mentioned antenna part acceptance criteria time wave signal,

The standard wave receiving equipment that further has the etalon time electric wave signal generation etalon time signal that receives according to above-mentioned antenna part,

The time information of the above-mentioned internal table timing of etalon time signal correction that above-mentioned opertaing device generates according to above-mentioned standard wave receiving equipment in the early stage the time,

Above-mentioned opertaing device, the time information of the above-mentioned internal table timing of etalon time signal correction that generates according to above-mentioned standard wave receiving equipment in the time of in the early stage, reach the occasion in the predefined moment according to the time information of above-mentioned internal table timing, incident as afore mentioned rules takes place, make above-mentioned broadcasting wave receiving equipment receive above-mentioned broadcasting wave, the extraction information of giving the correct time, according to the time information of the above-mentioned internal table timing of the above-mentioned information correction that gives the correct time, according to the demonstration moment of above-mentioned time information correction by above-mentioned moment display device.

2. the described automatic table of corrections of claim 1 is characterized in that,

Above-mentioned opertaing device, reach the occasion in the predefined moment at time information according to above-mentioned internal table timing, according to the accepting state of above-mentioned standard wave receiving equipment to above-mentioned etalon time electric wave signal, the time information of the above-mentioned internal table timing of etalon time signal correction that information of extracting according to above-mentioned broadcasting wave receiving equipment of giving the correct time or standard wave receiving equipment generate is proofreaied and correct demonstration moment by above-mentioned moment display device according to above-mentioned time information.

3. the described automatic table of corrections of claim 1 is characterized in that,

Above-mentioned opertaing device, reach the predefined moment at time information according to above-mentioned internal table timing, is not good occasion at above-mentioned standard wave receiving equipment to the accepting state of above-mentioned etalon time electric wave signal, the time information of the above-mentioned internal table timing of the information correction that gives the correct time of extracting according to above-mentioned broadcasting wave receiving equipment is proofreaied and correct demonstration moment by above-mentioned moment display device according to above-mentioned time information.

4. the described automatic table of corrections of claim 1 is characterized in that,

Above-mentioned antenna part comprises the bar-shaped antenna of the ferrite that can receive above-mentioned etalon time electric wave signal and above-mentioned broadcasting wave,

Above-mentioned standard wave receiving equipment generates the etalon time signal according to the etalon time electric wave signal that the bar-shaped antenna of above-mentioned ferrite receives,

Above-mentioned broadcasting wave receiving equipment extracts the information of giving the correct time according to the broadcasting wave that the bar-shaped antenna of above-mentioned ferrite receives.

5. the described automatic table of corrections of claim 1 is characterized in that,

Above-mentioned antenna part comprises the receive frequency set device that can set a plurality of different receive frequencies,

Above-mentioned opertaing device according to the accepting state of above-mentioned etalon time electric wave signal, makes above-mentioned receive frequency set device set the good frequency of accepting state.

6. automatic table of corrections is characterized in that having:

Internal table,

Carry out the moment display device of demonstration constantly,

Above-mentioned opertaing device, one sets battery, just takes place as the afore mentioned rules incident, makes above-mentioned moment display device show the time information of above-mentioned internal table timing,

At least further have the internal electric source that is used to drive above-mentioned internal table and

When not connecting external power source by above-mentioned internal electric source supply capability, replace the power supply switching part of the supply of above-mentioned internal electric source by the external power source supply capability once connecting external power source,

Above-mentioned broadcasting wave receiving equipment is accepted the electric power of above-mentioned internal electric source or external power source and is supplied with, and the broadcasting wave that receives according to above-mentioned antenna part extracts the information of giving the correct time,

Above-mentioned moment display device is accepted the electric power of said external power supply and is supplied with, and carries out moment demonstration,

Above-mentioned opertaing device, the time information of the above-mentioned internal table timing of the information correction that gives the correct time of extracting according to above-mentioned broadcasting wave receiving equipment, electric power is supplied with the electric power supply that switches to the said external power supply from above-mentioned internal electric source one, just take place, make above-mentioned moment display device show the time information of above-mentioned internal table timing as the regulation incident.

7. the described automatic table of corrections of claim 6 is characterized in that,

Above-mentioned moment display device carries out moment demonstration by pointer.

8. the described automatic table of corrections of claim 6 is characterized in that,

Above-mentioned antenna part acceptance criteria time wave signal,

Above-mentioned opertaing device, the time information of the above-mentioned internal table timing of etalon time signal correction that generates according to above-mentioned standard wave receiving equipment in the time of in the early stage.

9. the described automatic table of corrections of claim 8 is characterized in that,

Above-mentioned antenna part comprises the bar-shaped antenna of ferrite that receives above-mentioned etalon time electric wave signal and above-mentioned broadcasting wave,

10. the described automatic table of corrections of claim 6 is characterized in that,

Above-mentioned broadcasting wave as the information of giving the correct time, comprises the signal on schedule of synchronous predefined frequency at least on schedule at each,

Above-mentioned broadcasting wave receiving equipment comprises the filter apparatus that extracts the signal on schedule of said frequencies according to above-mentioned broadcasting wave,

Above-mentioned opertaing device is according to the time information of the above-mentioned internal table timing of signal correction on schedule of above-mentioned filter apparatus extraction.

11. the described automatic table of corrections of claim 10 is characterized in that,

The error of the time information of the above-mentioned internal table timing of signal correction on schedule that above-mentioned opertaing device extracts according to above-mentioned filter apparatus, according to this control information carry out above-mentioned moment display device to pin.