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CN1025458C - Integrated circuit for analog electronic timepiece and analog electronic timepiece - Google Patents

Integrated circuit for analog electronic timepiece and analog electronic timepiece Download PDF

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Publication number
CN1025458C
CN1025458C CN89104052A CN89104052A CN1025458C CN 1025458 C CN1025458 C CN 1025458C CN 89104052 A CN89104052 A CN 89104052A CN 89104052 A CN89104052 A CN 89104052A CN 1025458 C CN1025458 C CN 1025458C
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China
Prior art keywords
motor
circuit
needle
integrated circuit
needle movement
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CN89104052A
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CN1038708A (en
Inventor
矢部宏
守屋达雄
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Seiko Epson Corp
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Seiko Epson Corp
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    • GPHYSICS
    • G04HOROLOGY
    • G04GELECTRONIC TIME-PIECES
    • G04G9/00Visual time or date indication means
    • GPHYSICS
    • G04HOROLOGY
    • G04GELECTRONIC TIME-PIECES
    • G04G99/00Subject matter not provided for in other groups of this subclass
    • GPHYSICS
    • G04HOROLOGY
    • G04CELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C3/00Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means
    • G04C3/14Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means incorporating a stepping motor
    • GPHYSICS
    • G04HOROLOGY
    • G04CELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C9/00Electrically-actuated devices for setting the time-indicating means

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)
  • Measurement Of Unknown Time Intervals (AREA)
  • Control Of Stepping Motors (AREA)

Abstract

本发明的用于模拟电子表的集成电路至少具有中心CPU、程序存储器、电机运针控制电路,程序存储器存放有使上述中心CPU动作的软件;电机运针控制电路根据上述软件的指令,对多个步进电机的驱动进行控制。

另外,本发明的模拟电子表具有上述用于模拟电子表的集成电路、多个步进电机和与上述多个步进电机相连结的多个齿轮系机构。

The integrated circuit used for simulating electronic watches of the present invention at least has a central CPU, a program memory, and a motor needle movement control circuit, and the program memory stores software that makes the above-mentioned central CPU act; The drive of a stepper motor is controlled.

In addition, the analog electronic watch of the present invention has the aforementioned integrated circuit for an analog electronic watch, a plurality of stepping motors, and a plurality of gear train mechanisms connected to the plurality of stepping motors.

Description

IC for analong electronic watch and analog electronic watch
The present invention relates to have the integrated circuit that is used for analog electronic clock and the analog electronic clock of multi-functional display modes such as accurate timing demonstration, timer demonstration.
In the multi-functional analog electronic clock that formerly has, as the spy open clear 61-286783 number, the spy opens clear 61-294388 number and real open clear 61-26191 number etc. deliver like that, adopt the integrated circuit of special use to realize multi-functional respectively.
In above-mentioned prior art, owing to must use special IC, there is the problem that can not adapt to various consumer wants: promptly
1. because the development time of integrated circuit is long, do not catch up with the requirement in market;
When 2. appending function and change specification, the change of integrated circuit is on a grand scale, and must use new integrated circuit when the most serious;
3. can not be with variation of an integrated circuit corresponding function or the like.
The present invention puts forward in order to overcome above-mentioned shortcoming, its purpose aims to provide a kind of like this integrated circuit and analog electronic clock that is used for analog electronic clock, and the development time of integrated circuit is short, appends function and change specification easily, various consumers' needs are satisfied in variation that can corresponding function.
In order to address the above problem, the integrated circuit that is used for analog electronic clock of the present invention has center C PU, program storage and the motor control circuit of handling the needle at least, deposits the software that makes above-mentioned center C PU action in the program storage; The motor control circuit of handling the needle carries out drive controlling according to the instruction of above-mentioned software to a plurality of stepper motors.
In addition, the above-mentioned motor a plurality of motor clock pulse control circuits that control circuit can also have the umber of pulse of handling the needle that is used for controlling each stepper motor of handling the needle.
The above-mentioned motor control circuit of handling the needle has the reference signal of handling the needle and forms circuit, be used for forming the benchmark hour hands pulse of handling the needle, and the above-mentioned reference signal formation circuit of handling the needle also can have the function according to the frequency of the above-mentioned reference clock pulse of handling the needle of the Instruction Selection of software as the trigger pip of handling the needle of each stepper motor.
The above-mentioned motor control circuit of handling the needle also can have a plurality of driving pulses and forms circuit and the motor mode control circuit of handling the needle, and a plurality of driving pulses form the motor-driven pulse of circuit output different wave; The motor mode control circuit of handling the needle determines according to the instruction of software which kind of driving pulse each stepper motor selects.
In addition, also can have a plurality of motor drivers, be used for driving a plurality of stepper motors.
Analog electronic clock of the present invention has the above-mentioned a plurality of gear mechanisms that are used for the integrated circuit of analog electronic clock, a plurality of stepper motor and are connected with above-mentioned a plurality of stepper motors.
According to said structure of the present invention, rely on the software that leaves in the program storage, can freely control handling the needle of a plurality of stepper motors.
Fig. 1 is the calcspar of an embodiment of the integrated circuit used of analog electronic clock of the present invention.
Fig. 2 is the block diagram of concrete structure example of the precision timing circuit 211 of Fig. 1.
Fig. 3 is the handle the needle block diagram of concrete structure example of control circuit 212 of the motor of Fig. 1.
Fig. 4 is the block diagram that the reference signal of handling the needle of Fig. 1 forms the concrete structure example of circuit 220.
Fig. 5, Fig. 6, Fig. 7, Fig. 8 are respectively that the 1st driving pulse of Fig. 1 forms the timing diagram that circuit the 221, the 2nd driving pulse forms motor-driven pulse Pa, Pb, Pc and the Pd of circuit the 222, the 3rd driving pulse formation circuit 223 and 224 outputs of the 4th driving pulse formation circuit.
Fig. 9 is the motor clock signal control circuit 226,227,228 of Fig. 1 and the block diagram of 229 concrete structure example.
Figure 10 is the planimetric map of an embodiment of analog electronic clock of the present invention.
Figure 11 is used for usually the sectional view of the gear train of time-division demonstration constantly.
Figure 12 is used for usually the sectional view of the gear train of second demonstration constantly.
Figure 13 is the sectional view that is used for the gear train of accurate timing demonstration second.
Figure 14 is used for the sectional view that accurate timing divides the gear train that shows and regularly show second.
Figure 15 is used for the sectional view that quarter-bell is set the gear train that shows constantly.
Figure 16 is the circuit interconnect pattern of the embodiment of Figure 10.
Figure 17 is the outside drawing after the general assembly of present embodiment multi-function wrist-instrument is finished.
Figure 18 is the process flow diagram that is used to show the common moment.
Figure 19 is the process flow diagram of accurate clocking capability.
Figure 20 is the process flow diagram of timing function.
Figure 21 is the process flow diagram of alarm.
Figure 22 is the process flow diagram of the method for handling the needle of motor.
Fig. 1 is the calcspar of an embodiment of the integrated circuit that is used for analog electronic clock of the present invention.
As shown in Figure 1, CMOS-IC20 is a chip microprocessor that is used for analog electronic clock, on chip piece with center C PU be the center integrated program storage, data-carrier store, four motor drivers, motors handle the needle control circuit, sound generator and interrupt control circuits etc.
Below, describe with reference to Fig. 1.
The 201st, center C PU is by the ALU(arithmetical unit), formations such as arithmetic register, address control register, stack pointer, order register, command decoder by means of the storage mapping I/O mode, are connected with peripheral circuit with data bus with address bus.
The 202nd, program storage is by the ROM(mask ROM of 2048 words * 12 bits formation) form, depositing the software that is used for making the integrated circuit action.
The 203rd, the address decoder of program storage 202.
The 204th, data-carrier store is by the RAM(random access memory of 112 words * 4 bits formation) form, be used to remember the timer of various timing and the counter of each pointer position etc.
The 205th, the address decoder of data-carrier store 204.
The 206th, oscillatory circuit is a vibration source with the tuning-fork type crystal oscillator that is connected with Xin and Xout end, with 32768 hertz hunting of frequency.
The 207th, vibration stops testing circuit, when oscillatory circuit 206 failures of oscillations, detects this failure of oscillation signal, and makes system reset.
208 is the 1st frequency dividing circuits, 32768 hertz of signal Phi 32K of oscillatory circuit 206 output are carried out the order frequency division after, export 16 hertz of signal Phi 16.
209 is the 2nd frequency dividing circuits, and 16 hertz of signal Phi 16 frequency divisions that the 1st frequency dividing circuit 208 is exported are up to 1 hertz of signal Phi 1 from 8 hertz.In addition, from the state of each frequency-division section of 8 hertz to 1 hertz, utilize software readable to go in the center C PU201.
In addition, in the integrated circuit of present embodiment, handle the timer interrupt signal Tint of usefulness as the electronic watch calendar scheduling, use be 8,1 hertz of signal Phi 1 of 16,8 hertz of signal Phi of 16 hertz of signal Phi.Timer interrupts Tint back along taking place at each signal, each interruption source read in, reset and interrupt mask is all undertaken by software, reset and interrupt mask can be carried out respectively by each reason.
The 210th, sound generator is used for forming the buzzing drive signal, and exports to the AL end.The frequency of buzzing drive signal, on/off and the form of tolling can be controlled by software.
The 211st, precision timing circuit, concrete structure when 1/100 second timer of formation, utilize handling the needle of hardware controls 1/100 second hand as shown in Figure 2, can alleviate the burden of software greatly.
In Fig. 2, the 2111st, clock signal forms circuit, being formed as 100 hertz of signal Phi 100 of the reference clock signal of accurate timing measuring and frequency by 512 hertz of signal Phi 512 is the time clock pfc of 3.91 milliseconds of 100 hertz, pulsewidth, and this time clock pfc is used to form 1/100 second hand driving pulse pf.2112 is that 50 system chronometers are counted device, be used for counting by with the Φ 100 of door 2119, and the accurate timing reset signal Rcg that relies on control signal to form circuit 2118 outputs resets.The 2113rd, register, when control signal forms circuit 2118 output separation idsplay order signal Sp, the content that keeps chronometer to count device 2112.2114 is 50 system pin location counters, and by counting the display position that 1/100 second hand driving pulse pf remembers 1/100 second hand, and the signal Rhnd of 0 position that is used to remember 1/100 second hand that relies on control signal to form circuit 2118 outputs resets.The 2115th, consistent testing circuit compares the content of register 2113 and pin location counter 2114, when the two is consistent, exports consistent signal Dty.2116 is 0 position detecting circuits, when detecting 0 value of pin location counter 2114, just exports 0 detection signal Dto.2117 is the 1/100 second hand control circuits of handling the needle, and its structure makes when 1/100 second hand operating state and accurate pin during the instrumentation, when chronometer is counted the content of device 2112 and pin location counter 2114 when consistent, by time clock Pfc; When separating when showing and stopping instrumentation, if register 2113 and pin location counter 2114 are inconsistent, by hour hands pulse Pfc, under 1/100 second hand non-action status, in the instrumentation process of accurate timing, when the content of pin location counter 2114 is a numerical value beyond 0, by time clock Pfc.The 2118th, control signal forms circuit, and it separates demonstrations/releasings according to commencing signal St, the order of the beginning that instruction forms and the output command chronometer is surveyed of software/stop and separating the separation signal Sp that shows, orders accurate timing reset signal Rcg that the chronometer survey resets, is used to remember the 0 position signalling Rhnd of 0 position of 1/100 second hand and the actuating signal Dru that orders the action/non-action of 1/100 second hand.In addition, having only stepper motor C can carry out 1/100 second hand drives.Accurate timing look-at-me CGint takes place in the 5 hertz of carry signal Φ 5 that utilize chronometer to count device 2112 outputs, and the chronometer that utilizes software can carry out below 1/5 second is surveyed processing.
The 212nd, the motor control circuit of handling the needle, concrete structure as shown in Figure 3, it according to the instruction of software to each motor driver output motor driving pulse.Below, describe with reference to Fig. 3.
The 219th, the motor mode control circuit of handling the needle, it is according to the instruction of software, remember the mode of handling the needle of each motor, simultaneously, formation and output select just changeing Sa, the Sb that the driving II is just being changeed in selection, the Sc that selects to reverse the driving I, the selection reverse of driving I to drive the Sd of II and each control signal such as Se of selecting just changeing the correction driving.
The 220th, the reference signal of handling the needle forms circuit, concrete structure as shown in Figure 4, it forms according to the instruction of software and the handle the needle reference clock signal Cdrv of usefulness of output.
In Fig. 4,2201 is registers of 3 bits, and it uses the data of reference clock signal Cdrv frequency according to instruction (output signal of the address decoder 2202) memory of software with deciding to handle the needle.2203 is registers of 3 bits, and it reads in and remember the data of register 2201 memories on the back edge of the reference clock signal Cdrv that handles the needle of programmable frequency divider 2205 outputs.The 2204th, code translator, it exports 2,3,4,5,6,8,10 and 16 according to the data of register 2203 memories with the form of 2 system numbers.The 2205th, programmable frequency divider, the numerical value of establishing code translator 2204 outputs is n, this programmable frequency divider 2205 is that 1/n and output are gone with 256 hertz of signal Phi 256 frequency divisions of the 1st frequency dividing circuit 208 outputs just.Therefore, the reference signal of handling the needle forms circuit 220 just can be according to the instruction of software, the frequency of the reference clock signal Cdrv that selects to handle the needle from 8 kinds of frequencies such as 128 hertz, 85.3 hertz, 64 hertz, 51.2 hertz, 42.7 hertz, 32 hertz, 25.6 hertz and 16 hertz.In addition, the frequency change of reference clock signal cdrv of handling the needle is to carry out in the moment that data are read into register 2203, because reading in data to register 2203 carries out synchronously with the reference clock signal cdrv that handles the needle, so, when being converted to next step frequency f b from previous frequency f a, the interval that necessarily can guarantee 1/fa.
In addition, when just changeing the driving I continuously and reversing driving, the frequency of the reference clock signal Cdrv that handles the needle is limited to below 64 hertz.
221 is that the 1st driving pulse forms circuit, and it forms and export the driving pulse Pa that just changes the driving I shown in Figure 5.
222 is that the 2nd driving pulse forms circuit, and it forms and export the driving pulse Pb that just changes the driving II shown in Figure 6.
223 is that the 3rd driving pulse forms circuit, and it forms and export the driving pulse Pc that reverse shown in Figure 7 drives I.
224 is that the 4th driving pulse forms circuit, and it forms and export the driving pulse Pd that reverse shown in Figure 8 drives II.
225 is the 5th driving pulse formation circuit, and its forms and export the pulse train Pe(spy who revises driving usefulness and opens No. 83 described common driving pulse P1 of clear 60-2608, correction driving pulse P2, the pulse P3 when AC magnetic field detects, AC magnetic field detection pulse SP1 and rotation detection pulse SP2).
226,227,228 and 229 is motor clock signal control circuits, concrete structure as shown in Figure 9, it is according to the instruction of software control step motor A respectively, the umber of pulse of handling the needle of stepping motor B, stepper motor C and stepper motor D.
In Fig. 9,2261 is registers of 4 bits, the umber of pulse of handling the needle of its memory software instruction.2262 is up-counters of 4 bits, its counting by with the reference clock signal Gdrv and rely on control signal Sreset to reset of handling the needle of door 2274.The 2263rd, consistent testing circuit compares the content of register 2261 and up-counter 2262, when the two is consistent, just exports consistent signal Dy.The 2264th, complete 1 testing circuit when the content of register 2261 is complete 1 the time, is exported complete 1 detection signal D15.The 2265th, trigger pip generation circuit, this trigger pip is used to form the motor-driven driving and dashes, it is made of with door 2268, two inputs and door 2269 and two inputs or door 2270 not gate 2266 and 2267, three inputs, when being set at full 1(15 in the register 2261) time, just continuously output motor pulse, when having set other data till; When the data beyond the setting complete 1, only output is equivalent to the motor pulses of these data, before also not setting next data, stops the output motor pulse.The 2271st, two-way switch is connected when output control signal Sread, and the data of up-counter 2262 are sent into data bus.The 2272nd, control signal forms circuit, it form according to the instruction of software and output be used for to register 2261 set the umber of pulse of handling the needle signal Sset, be used for reading in up-counter 2262 data signal Sread and be used for signal Sreset that register 2261 and up-counter 2262 are resetted.In addition, when output signal Sread, not gate 2273 and pass through with the door 2274 reference clock signal Cdrv that just forbids handling the needle.At this moment, must signal Sreset take place, and register 2261 and up-counter 2262 are resetted after read in.In addition, when consistent testing circuit 2263 detects consistent signal (when the umber of pulse of setting has been exported), each motor just sends Electric Machine Control look-at-me (Mint).When the Electric Machine Control look-at-me takes place, utilize software which can read in look-at-me has taken place, and after reading in, reset.
230,231,232 and 233 is that trigger pip forms circuit among Fig. 3, corresponding with the handle the needle mode of handling the needle control signal Sa, Sb, Sc and the Sd of mode control circuit 219 output of motor, the trigger pip Tr that makes the output of motor clock signal control circuit forms trigger pip Sat, Sbt, Sct, Sdt and the Set that circuit is used for forming motor-driven pulse Pa, Pb, Pc, Pd and Pe as each driving pulse such as 221,222,223,224 and 225 and passes through.
234,235,236 and 237 is motor-driven pulse selecting circuits, corresponding to mode control signal Sa, Sb, Sc, Sd and the Se of respectively handling the needle, from forming the motor-driven pulse Pa, Pb, Pc, Pd, Pe of circuit output, each driving pulse selects and exports the needed driving pulse of each stepper motor.More than finished explanation to Fig. 3.
Among Fig. 1,213,214,215 and 216 is motor drivers, and it alternately outputs to the motor-driven pulse of motor-driven pulse selecting circuit output on two output terminals that each motor-drive circuit has, in order to drive each stepper motor.
The 217th, input control and reset signal form circuit, and the input end of the input of each switch such as A, B, C, D, RA1, RA2, RB1, RB2 and K, T, R is handled.When any one or RA1, RA2 among above-mentioned A, B, C, the D, any one switch input among RB1, the RB2, switch interrupts signal Swint just takes place.At this moment reading in and resetting of interruption source utilizes software to carry out.In addition, each input end is arrived V by pressure drop SS, under off-state, data are 0, with V DDUnder the state that is connected, data are 1.
The K end is the specification end of convert, can select two kinds of specifications according to the data of K end.Reading in of the data of K end relies on software to carry out.
The R end is the system reset end, as R end and V DDWhen being connected, CPU, frequency dividing circuit and other peripheral circuits are set at original state forcibly by hardware.
The T end is a test mode conversion end, and RA2 is being held and V DDUnder the state that is connected,, can change 16 test modes that are used to check peripheral circuit by clock signal being defeated by the T end.Main test mode has just changes I and confirms mode, just changes II and confirm mode, reverse I and confirm mode, reverse II and confirm mode, revise affirmation mode and the 1/100 second affirmation mode of accurate timing etc. of driving, under these affirmation modes, can be to each motor-driven pulse output end output motor driving pulse automatically.
System reset is except holding R and V DDOutside the method that is connected, input is carried out when also can utilize switch, in this integrated circuit, when any and B among A and the C and RA2 import simultaneously, and any and RA2 among A, B, the C and RB2 make system reset forcibly by hardware when importing simultaneously.
In addition, have frequency dividing circuit to reset and peripheral circuit resets by the treatable reset function of software, when carrying out peripheral circuit when resetting, frequency dividing circuit also is reset.
Interrupt control circuit 218 interrupts for switch interrupts, accurate timing interruption and Electric Machine Control, gives different interrupt priority levels respectively, and reads in memory before and read in reset processing afterwards.
The 200th, stabilized voltage supply is by being added in V DD-V SSBetween cell voltage (about 1.58V) form the low burning voltage of about 1.2V, and output to VS1 and hold.
More than Fig. 1 is described.
As described above in detail, CMOS-IC20 has following feature to the driving of stepper motor, is very suitable for the integrated circuit as spininess type, multi-functional analog electronic clock.These features are:
1. have motor driver 213,214,215 and 216, can drive 4 stepper motors simultaneously;
2. have handle the needle mode control circuit 219, driving pulse of motor and form circuit 221~225 and motor-driven pulse selecting circuit 234~237, utilize software can to 4 stepper motors carry out respectively three kinds just changeing drive and two kinds reverse drivings;
3. have the reference signal of handling the needle and form circuit 220, utilize software can freely change the speed of handling the needle of each stepper motor;
4. have respectively the motor clock signal corresponding and form circuit 226~229, utilize software can freely set the umber of pulse of handling the needle of each stepper motor with 4 stepper motors.
Below, the planimetric map of an embodiment of multi-functional analog electronic clock of the present invention is shown in Figure 10, and describes.In the present embodiment, use 4 stepper motors, realized multifunction.Below, describe with reference to Figure 10.
The 1st, utilize resin forming and the base plate made, the 2nd, battery.The 3rd, be used to show the stepper motor A in the common moment, constitute by magnetic core 3a, coil block 3b, stator 3c and rotor 4, magnetic core 3a is made by high permeability material, coil block 3b by the coil on 3a and coil lead plate and coil former that end that its two ends can conducting was handled constitute; Stator 3c is made by high-permeability material; Rotor 4 is made of rotor magnet and pinion wheel.5,6,7,8 is respectively No. five gears, No. four gears, No. three gears, No. two gears, the 9th, and back side gear, the 10th, tubular gear.No. two gears and tubular gear arrangement are in the center of electronic watch.Rely on these gear structures, carry out in the center of electronic watch that common constantly branch shows and the time demonstration.Figure 11 is when being used for usually constantly, divide the sectional view of the engagement of the gear train that shows.As shown in the figure, rotor pinion 4a and No. five gear 5a engagement, five mesh with pinion wheel 5b and No. four gear 6a.In addition, No. four pinion wheel 6b and No. three gear 7a engagements, No. three pinion wheel 7b and No. two gear 8a engagements.From the reduction gear ratio of having changeed pinion wheel 4b to two gear 8a is that 1/1800, No. two gear promptly turned around in per 3600 seconds in 60 minutes, and the branch that can carry out usually the moment shows.The 11st, be used for the minute hand that branch shows, chimeric with the front end of No. two gears 8.In addition, No. two pinion wheel 8b and back side gear 9a engagement, back side pinion wheel 9b meshes with tubular gear 10.Reduction gear ratio from No. two pinion wheel 8b to tubular gear 10 is 1/12, can carry out usually constantly the time show.The 12nd, the hour hands that show when being used for, chimeric with the front end of tubular gear 10.In addition, in Figure 10, the 13rd, little second gear is configured on the axle of 9 o'clock directions of electronic watch, relies on the wheel train structure that is made of rotor 4, No. five gears 5 and little second gear 13, shows the enterprising second of often carving of working at the axle of 9 o'clock directions of electronic watch.Figure 12 is used for usually the sectional view of the engagement of the gear train of second demonstration constantly.As shown in the figure, No. five pinion wheel 5b and gear 13a engagement in little second.Reduction gear ratio from rotor pinion 4a to little second gear 13 is 1/30, and rotor 4 rotates 180 ° in 1 second, and gear 13 turned around in 60 seconds in little second, promptly rotated 6 ° in 1 second, and therefore, show the second that can carry out usually the moment.The 14th, be used for second little second hand of demonstration, chimeric with the front end of little second gear 13.
In Figure 10, the 15th, be used for the stepper motor B that accurate timing second hand shows, be made of the magnetic core 15a that makes with high permeability material, coil block 15b, stator 15c and rotor 16, lead plate and coil former that coil block 15b was handled by coil on magnetic core 15a and the end that makes its two ends conducting constitute; Stator 15c is made by high-permeability material, and rotor 16 is made of rotor magnet and rotor pinion.In addition, 17,18,19 is respectively 1/5 second CG first neutral gear, 1/5 second CG second neutral gear and 1/5 second CG gear, and 1/5 second CG gear arrangement is in the center of electronic watch.Rely on these gear structures, show the second of carrying out accurate timing in the center of electronic watch.Figure 13 is the sectional view that is used for the engagement of the gear train that accurate timing shows second.As shown in the figure, rotor pinion 16a and CG first neutral gear 17a engagement in 1/5 second, 1/5 second CG first intermediate speed pinion 17b and CG second neutral gear 18a engagement in 1/5 second.In addition, 1/5 second CG second intermediate speed pinion 18b and CG gear 19a engagement in 1/5 second.From the reduction gear ratio of 16a to 1/5 second CG gear of rotor pinion 19a is 1/150.According to the electric signal of CMDS-IC20, rotor 16 rotated 180 ° in 1/5 second.Therefore, CG gear 19 rotated 1.2 ° in 1/5 second in 1/5 second, promptly rotated in 1 second for 1.2 ° * 5 steps, and the accurate timing that can carry out 1/5 second scale shows second.The 21st, be used for 1/5 second CG pin that accurate timing shows second, chimeric with the front end of 1/5 second CG gear.In addition, 1/5 second CG pin 21 also has concurrently as being used for timer that timer sets constantly and sets the function of pin.About the timer action, will introduce in the back.
The 27th, the stepper motor C that the branch that is used for accurate timing shows and shows second in the moment of timer process, the magnetic core 27a that it is made of high permeability material, coil block 27b, stator 27c and rotor 28 constitute, and coil lead plate and coil former that coil block 27b was handled by coil on magnetic core 27a and the end that makes its two ends conducting constitute; Having decided 27c is made by high-permeability material; Rotor 28 is made up of rotor magnet and rotor pinion.In addition, 29 and 30 are respectively branch CG neutral gears and divide CG gear, divide on the axle of 12 o'clock directions that CG gear 30 is configured in electronic watch.Rely on these gear trains, at electricity carry out on the axle of 12 o'clock directions of table accurate timing minute show and timer through constantly demonstration second.Figure 14 is the sectional view that is used for the gear train engagement of demonstration of accurate timing branch and second demonstration of the timer process moment.As shown in the figure, rotor pinion 28a meshes with dividing CG neutral gear 29a, divides CG intermediate speed pinion 29b and divides CG gear 30a engagement.Is 1/30 from rotor pinion 28a to minute reduction gear ratio of CG gear 30a.During the precision timing mode, according to the electric signal of CMOS-IC20, rotor 28 ratio with 360 ° in 1 minute rotates, and rotates for 180 ° * 2 steps in promptly per 30 seconds.Therefore, divide the CG gear to rotate 12 ° in one minute, rotate 360 ° (12 ° * 30 steps) in promptly 30 minutes, the accurate timing that can carry out 30 minutes divides and shows.The 31st, be used for accurate timing and divide the branch CG pin that shows, be entrenched in the front end of branch CG gear.Utilize the combination of this minute CG pin 31 and above-mentioned 1/5 second CG pin 21, can carry out the minimum unit of reading is 1/5 second, and 30 minutes accurate timing of maximum instrumentation shows.Secondly, under the situation of timer mode, according to the electric signal of CMOS-IC20, rotor 28 opposite direction along with accurate timing mode the time is rotated.This rotates changeed in 1 second for 180 ° * 1 step, divided CG pin 31 in the counterclockwise direction with 1 second scale rotation, showed the second that can carry out 60 seconds the timer elapsed time of 1 circle.In addition, at this moment, rotor 16 is according to the electric signal of CMOS-IC20, and opposite direction rotated for 180 ° * 5 steps in 1 minute along with accurate timing mode the time.Therefore, CG pin 21 rotated with 1 minute ratio of 6 ° in the counterclockwise direction in 1/5 second, and the branch that can carry out the timer elapsed time shows.In addition, about timer setting constantly, be in 23 under the state of the 1st step at the 2nd table shown in Figure 10, whenever click B switch 25, changeed 16 and rotated for 180 ° * 5 steps, 1/5 second CG pin 21 rotates with 6 ° unit (being 1 fen unit on the scale), can show that 60 minutes timer of up sets constantly.Among Figure 10 32 is used for quarter-bell to set the stepper motor D that shows constantly, the magnetic core 32a that it is made of high permeability material, coil block 32b, stator 32c and rotor 33 constitute, and coil lead plate and coil former that coil block 32b was handled through the end of conducting by the coil on magnetic core 32a and its two ends constitute; Stator 32c is made by high-permeability material; Rotor 33 is made of rotor magnet and rotor pinion.In addition, 34,35,36 and 37 is respectively that AL neutral gear, AL divide gear, AL back side gear and AL tubular gear, and AL divides on the axle of 6 o'clock directions that gear 35 and AL tubular gear 37 be configured in electronic watch.Rely on this gear structure, on the axle of 6 o'clock directions of electronic watch, carry out quarter-bell and set constantly and show.Figure 15 is used for the sectional view that quarter-bell is set the gear train engagement that shows constantly.As shown in the figure, rotor pinion 33a and AL neutral gear 34a engagement, AL intermediate speed pinion 34b and AL divide gear 35a engagement.In addition, AL divides pinion wheel 35b and AL back side gear 36a engagement, AL back side pinion wheel 36b and 37 engagements of AL tubular gear.The reduction gear ratio of dividing gear 35a from rotor pinion 33a to AL is 1/30, and dividing pinion wheel 35b from AL is 1/12 to the reduction gear ratio of AL tubular gear 37.In addition, the 38th, the AL minute hand is entrenched in the front end that AL divides gear, and the 39th, the AL hour hands are entrenched in the front end of AL tubular gear 37.
When the 2nd table is in the 1st step to 23, be the timer setting means, whenever by a C switch 26, according to the electric signal of CMOS-IC20, rotor 33 rotates 180 °.Therefore, the AL minute hand rotates 6 ° (being 1 minute on the scale), and the AL hour hands rotate 0.5 °.Therefore, can be that the unit maximum is set to 12 hours with 1 minute constantly with quarter-bell.In addition, at this moment, if continue to press C switch 26, then AL minutes 38 and AL hour hands 39 continuous walking post can be finished quarter-bell at short notice and set constantly.When the quarter-bell of setting is constantly consistent with the common moment, just send the quarter-bell sound.In addition, when the 2nd table is in the 0th step to 23, be the quarter-bell disconnect mode, AL minutes 38 and AL hour hands 39 show the moment usually.At this moment, rotor 33 is according to the electric signal of CMOS-IC20, and per minute rotated for 180 ° * 1 step.Therefore, AL minute hand 38 carries out handling the needle in 1 minute.
It more than is the explanation that Figure 10 is done.
Figure 16 is the circuit connecting line figure of CMOS-IC20 and other electron component.In Figure 16; the 2nd, silver oxide cell (SR927W); 3b is the coil block of stepper motor A, and 15b is the coil block of stepper motor B, the 24th, and the A switch; the 25th, the B switch; the 26th, C switch, 27b are the coil blocks of stepper motor C, and 32b is the coil block of stepper motor D; 55 and 56 is hummer driving elements; the 55th, step-up coil, the 56th, little mould transistor of band protection diode, the 57th, be integrated in the sheet-type capacitor of 0.1 μ F in the CMOS-IC20; be used to suppress the variation in voltage of mu balanced circuit; the 58th, be integrated in the microminiature tuning-fork type crystal oscillator in the CMOS-IC20, be the vibration source of oscillatory circuit, 46a is a switch; constitute the part of locking bar 46; 59a is a switch, constitutes the part of second mandarin duck 59, the 64th, and piezoelectric buzzer; be close on the bonnet of electronics watchcase, not shown among Figure 10.In addition, switch 24,25 and 26 is button type switches, only just can import when pressing.Switch 46a be with the 1st table the switch of 22 interlocks, logical when the 1st table is in the 1st step to 22 with the RA1 termination, when being in the 2nd step, lead to the RA2 termination, when common position, disconnect.Switch 59a be with the 2nd table the switch of 23 interlocks, logical when the 2nd table is in the 1st step to 23 with the RB1 termination, when being in the 2nd step, lead to the RB2 termination, when common position, disconnect.Figure 17 is the outside drawing after the general assembly of present embodiment multi-function wrist-instrument is finished.Below with reference to the process flow diagram of Figure 17 and 18~22, the specification and the method for operating of present embodiment is described simply.
In Figure 17, the 40th, shell, the 41st, dial plate.In addition, on dial plate, the 42nd, common display part constantly, the 43rd, accurate timing divides the second display part in demonstration and timer elapsed time, and the 44th, the quarter-bell setting is display part constantly.
Explanation earlier is the situation in the moment usually, and foregoing such common moment is to show by little second hand 14, minute hand 11 and hour hands 12 that per second is handled the needle.The 1st table is dialed out to the 2nd step to 22, just can carry out to the time.At this moment, utilize and the mandarin duck 45 shown in Figure 10 and the correction control lever 47 of locking bar 46 tablings, can proofread and correct gear 6 No. four, rotor 4 is stopped operating, thereby make little second hand stop to handle the needle, under this state.If rotate the 1st table, will take turns 50 to gear 48 and little iron teeth by table revolving force passed to back side gear 9 22.At this moment, because No. two gear 8a have certain slip torque, and are coupled with No. two pinion wheel 8b, so, proofreaies and correct No. four gear 6, little iron teeth takes turns 50, back side gear 9, No. two pinion wheel 8b and tubular gear 10 also rotate.Therefore, minute hand 11 and hour hands 12 can rotate and be set in any time.
Figure 18 shows the process flow diagram in the moment usually.As shown in Figure 18, when 1 hertz of look-at-me of input, just read in the state whether switch RA2 disconnects, when RA2 disconnects, just the just commentaries on classics correction that mode control circuit 219 sets stepper motor A of handling the needle drives to motor, motor clock signal control circuit A226 is set handle the needle several 1.When switch RA2 connects (constantly correction state), just stop motor-driven, and make frequency dividing circuit 208 and 209 instant resets so that when RA2 disconnects back 1 second drive motor.
Figure 19 is the process flow diagram of accurate clocking capability." GG " that uses among Figure 19 is the abbreviation of accurate timing.In addition, " CG begins " expression chronometer is surveyed neutralization and is removed the state that separation shows.When the 2nd table is in common position to 23 (when RB1 and RB2 disconnect), be accurate timing mode, when pressing the A switch, chronometer surveyed begun and stop.When the beginning chronometer is surveyed, CG1/5 counter second that is made of the part of data-carrier store 204 just increases counting 1 according to the CG look-at-me, CG pin 21 was handled the needle with 1/5 second scale in 1/5 second, simultaneously when 1/5 second rolling counters forward to 1 minute, the CG minute counter that is made of the part of data-carrier store 204 is also added 1, divides CG pin 31 to handle the needle with 1 scale division.In addition, when " CG begins ",, then,, if press the B switch, just become " CG begins ", just 1/5 second CG pin 21 is fast-forward to the position that shows the instrumentation time with branch CG pin 31 separating under the show state for separating show state if press the B switch.In addition, under the halted state that chronometer is surveyed, if press the B switch, then chronometer is surveyed and is resetted, and each CG pin is fast-forward to the place that shows 0 position.In addition, about the method that F.F. is handled the needle, be shown in the process flow diagram of Figure 22.
Figure 20 is the process flow diagram of timer function.Utilize 1/5 second CG pin 21 Displaying timer device setting-up time.(when RB1 connects) is the timer mode when the 2nd table is in the 1st step to 23, when the timer set condition, if press the B switch, just the timer setting-up time increases by 1 fen, 1/5 second CG pin 21 by 1 minute unit (5 go on foot) handle the needle.The scale that this 1/5 second CG pin 21 is indicated on dial plate 41 is represented the timer setting-up time, and maximum can be set to 60 minutes.The beginning of timer and stop to utilize A switch 24 to carry out.When timer action beginning, divide CG pin 31 to handle the needle 1 second by 1 second in the counterclockwise direction, CG pin 21 was handled the needle 1 minute by 1 minute in the counterclockwise direction in 1/5 second, represented the timer elapsed time with this.In addition, when timer is set at 1 timesharing and last 1 minute, divide CG pin 31 to stop, the CG pin successively decreased 211 seconds by 1 second in 1/5 second, sent before last 3 seconds to give accusing and rang, and when arriving 0 second, sent and finished the sound regularly, and timer moves and promptly comes to an end.
Figure 21 is the process flow diagram of alarm.Quarter-bell is set and constantly is presented on the digital disk 44.In that the 2nd table is in 23 under the state of the 1st step, whenever press C switch 26 one time, AL minutes 38 and AL hour hands 39 just are divided into unit with 1 handles the needle, and maximum can be set 12 hours the quarter-bell moment.At this moment, if continue to press C switch 26, AL minute hand and AL hour hands 39 make continuous walking post, can finish quarter-bell setting constantly at short notice.When the moment of setting is consistent with the common moment, just send the quarter-bell sound.When the 2nd table was in the 0th step to 23, quarter-bell and above-mentioned timer all became non-manner of execution in addition, and AL minute hand 38 and AL hour hands 39 show usually constantly.Usually correction is constantly rotated the 2nd under the 2nd step state that be in and is shown handle, by AL table shown in Figure 10 gear 49 and the little iron teeth wheel 51 of AL is carried out.
Figure 22 is the method flow diagram of handling the needle of each motor.Figure 22 (a) handles the needle number less than the method for handling the needle of 14 motor, Figure 22 (b) and (c) be several methods of handling the needle greater than 15 F.F. (128 hertz) of handling the needle.The register 2261 of " motor pulses register " presentation graphs 9 that uses among the figure.
It more than is explanation to embodiment.
The as above detailed description that just embodiment did according to the present invention, utilizes the software that leaves in the program storage, can realize integrated circuit and analog electronic clock that the analog electronic clock of all size is used.In addition, the development time of software be realize identical function the random logic integrated circuit development time 1/2~1/3, can shorten development time of integrated circuit significantly.On stream, change specification and when appending function can realize at an easy rate by changing software, thereby can realize satisfying integrated circuit and analog electronic clock that the analog electronic clock of consumer's variation needs is used.

Claims (6)

1、一种用于模拟电子表的集成电路,包括中心CPU、程序存储器和多个电机驱动器,程序存储器存放有使上述中心CPU动作的软件;其特征在于,所述集成电路还包括电机运针控制电路,根据上述软件的指令,选择指定的驱动信号供给上述多个电机驱动器。1. An integrated circuit for simulating an electronic watch, comprising a central CPU, a program memory and a plurality of motor drivers, and the program memory stores software for making the above-mentioned central CPU act; it is characterized in that the integrated circuit also includes a motor needle The control circuit, according to the instructions of the software, selects the designated drive signal and supplies it to the plurality of motor drivers. 2、按权利要求1所述的用于模拟电子表的集成电路的特征是:上述电机运针控制电路具有多个电机时钟信号控制电路,用以控制各步进电机的运针脉冲数。2. The integrated circuit for analog electronic watch according to claim 1 is characterized in that: said motor needle movement control circuit has a plurality of motor clock signal control circuits for controlling the number of needle movement pulses of each stepping motor. 3、按权利要求1或2所述的用于模拟电子表的集成电路的特征是:上述电机运针控制电路具有形成运针基准时钟信号的运针基准信号形成电路,该基准时钟信号作为各步进电机的运针触发信号,上述运针基准信号形成电路可以根据软件的指令选择上述运针基准时钟信号的频率。3. The integrated circuit for analog electronic watches according to claim 1 or 2 is characterized in that: the above-mentioned motor needle movement control circuit has a needle movement reference signal forming circuit forming a needle movement reference clock signal, and the reference clock signal is used as each The needle movement trigger signal of the stepping motor, the needle movement reference signal forming circuit can select the frequency of the needle movement reference clock signal according to the software instruction. 4、按权利要求1所述的用于模拟电子表的集成电路的特征是:上述电机运针控制电路具有多个驱动脉冲形成电路和电机运针方式控制电路,多个驱动脉冲形成电路输出不同波形的电机驱动脉冲;电机运针方式控制电路根据软件的指令决定各步进电机选择哪种驱动脉冲。4. The integrated circuit for simulating electronic watches according to claim 1 is characterized in that: the above-mentioned motor needle movement control circuit has a plurality of drive pulse forming circuits and motor needle movement mode control circuits, and the outputs of the multiple drive pulse forming circuits are different. Waveform motor drive pulse; the motor needle movement control circuit determines which drive pulse to choose for each stepping motor according to the instructions of the software. 5、按权利要求1所述的用于模拟电子表的集成电路的特征是:所述多个电机驱动器用以驱动上述多个步进电机。5. The integrated circuit for analog electronic watches according to claim 1, characterized in that: said multiple motor drivers are used to drive said multiple stepping motors. 6、按权利要求1所述集成电路,其特征在于,用于模拟电子表,所述模拟电子表还包括多个步进电机和与上述多个步进电机相连结的多个齿轮系机构。6. The integrated circuit according to claim 1, characterized in that it is used for an analog electronic watch, and said analog electronic watch further comprises a plurality of stepping motors and a plurality of gear train mechanisms connected with said plurality of stepping motors.
CN89104052A 1988-06-17 1989-06-15 Integrated circuit for analog electronic timepiece and analog electronic timepiece Expired - Lifetime CN1025458C (en)

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JP15087388 1988-06-17

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EP0347249B1 (en) 1994-06-01
DE68915618D1 (en) 1994-07-07
EP0347249A3 (en) 1991-03-20
KR900000740A (en) 1990-01-31
JPH0277679A (en) 1990-03-16
EP0347249A2 (en) 1989-12-20
JP3259718B2 (en) 2002-02-25
JPH11194178A (en) 1999-07-21
DE68915618T2 (en) 1994-09-15
JP2000046967A (en) 2000-02-18
KR940008709B1 (en) 1994-09-26
CN1038708A (en) 1990-01-10
HK107097A (en) 1997-08-22
JP3019324B2 (en) 2000-03-13

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