JPS63299415A - cordless telephone - Google Patents

Abstract

PURPOSE:To reduce a re-dialing time and to facilitate an operation, by providing a means which sets a base unit as an automatic answering telephone when no wave of a handset arrives at the base unit, a reception circuit, a memory device, a call tone generation circuit, a D/A circuit, and a control circuit to control those circuits. CONSTITUTION:When communication between the handset and the base unit is disabled, no signal is inputted to a reception detection circuit 108. The reception detection circuit 108 outputs a carrier interruption signal NCR to the control circuit 116, an automatic incoming circuit 111, and a timer circuit 112. The automatic incoming circuit 111 switches both contacts of change-over switches 119 and 120 to contact B sides by the timer circuit 112 when the above time exceeds a certain value. The automatic incoming circuit 111 inputs an on-hook signal to the control circuit 116, and makes a hook switch 118 contact with a contact B on an on-hook side. The control circuit 116 takes out voice information from the memory device 102 via the D/A circuit 103, and outputs the voice information to a hybrid circuit 117 via a low frequency amplifier 115.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to cordless telephones.　　.

[Conventional technology] 10 A common cordless telephone is a No1 handset.

A base connected to a telephone line with a transceiver called.

It consists of a transmitter/receiver called a unit, and the handset and base unit transmit electromagnetic waves.

Combined, calls to subscribers will be answered at +5
, and proceed as you would a regular phone call.

Here, if the distance between the base unit and the 71st unit is within the short distance visible range, there will be no problem with communication.

Blocks radio waves even if the device is far away or close to you.

In buildings constructed from materials with properties that・、
.

Calls may be disrupted due to radio waves not being able to reach you. Some cor.

Dress telephones sometimes lose their reception.

If the handset battery runs out, you will receive an answering machine.

The system uses a system that records each incoming call.

In this method, the location of the base unit determines whether or not there is an incoming call at 5 o'clock when the handset becomes unusable.

I had to go and check. Regarding cordless telephones, there is Japanese Patent Application Laid-Open No. 60-245゜38.

[Problems to be Solved by the Invention] 10. When the radio waves of the above-mentioned prior art handset become unreachable or the battery runs out, it becomes an answering machine.

In the method of recording incoming calls, recorded incoming calls.

To get information about the story, go to the location where the base unit is located, and after getting the information, look up the phone number in the phone book, etc., and re-dial. As mentioned above, it takes time and effort to re-dial, and it also requires handseting.

I couldn't operate it on the set.

The purpose of the present invention is to solve these problems.

This is one thing. ,・
3. [Measures to solve the problem] If the handset signal cannot reach the base unit, use the base unit as an answering machine.

dial pulse on said base unit.

A reception circuit that receives a signal or a dial tone signal and detects which dial is operated.

A memory "device" that stores telephone numbers by dialing operations, a "call" tone generation circuit that generates a dial tone signal, and an analog digitizer that stores voice information.

an A/D circuit for converting the analog/digital to zero, and another memory device for storing the analog/digital/zero converted audio information.

and D/A that converts audio information from digital to analog.

It has a control circuit that controls the circuit and the above circuit.

Thus, the above objective is achieved.

[Function] 15 In the base unit, the detection circuit that detects whether or not communication with the handset has occurred is not possible.

When it becomes impossible, a carrier wave interruption signal is sent to the timer circuit.

Output NCR. The timer circuit controls the transport.

A predetermined time has elapsed since the wave interruption signal NCR was input 21;
4.

Then it will switch to automatic incoming call mode. Said automatic call letter.

When there is an incoming call in the state, the automatic incoming call circuit turns on the line.

hook and input the incoming signal to the control circuit. Before.

The control circuit is a speech synthesis circuit or a D/A circuit.

The message stored in the RAM is transmitted, and the receiving circuit detects the calling party's telephone number using a dial pulse signal or dial tone signal.

Control the amount of memory to be stored in the harpoon and send further messages.

Analog-to-digital conversion is performed using an A/D circuit.

input to the memory device. After 10 minutes of receiving the call as described above, the line is taken off-hook and the automatic call receiving ends. Before.

The handset communicates with the base unit.

When a call arrives, the control circuit outputs a signal RC to the data modulation port to notify the presence or absence of an incoming call.

After being modulated, the transmitter sends radio waves to notify the handset of the presence or absence of an incoming call. When determining the contents of an incoming call using the handset, a continuous signal RD is input to the data demodulation circuit of the base unit, and the message is stored in the memory device of the function via the control circuit and sent to the D/A. The information is read out by a circuit and output to a handset via radio waves via the 2° transmitter. .

If you want to call the sender of the message.

Before the automatic dialing signal AD from said handset.

The recorded data is input to the demodulation circuit and then passed through the control circuit.

The call tone circuit 5 outputs the telephone number stored in the memory device as a dial tone signal to the line. that's all.

As in, the handset receives the message of the destination and automatically dials the destination with one button.

can be done.

[Example] 10
An embodiment of the present invention will be described below with reference to FIGS. 1 and 2. FIG. 1 is a block diagram of the base unit, and FIG. 2 is a block diagram of the handset. When there is an incoming call in the normal originating/receiving/calling state, the normally closed contact A of the hook switch 118 connected to the line 100 is input to the calling inspection car 5 output circuit 112. The data modulation circuit 1o7
.

The calling signal is modulated by the transmitter 10 at the antenna.

It is modulated and sent to the handset via radio waves via 1. .

On the handset side, talk switch 209 is set to methane.

The signal was received by antenna 2 when the signal was in the by state.

The waves are received and demodulated by a receiver 21, and then sent to a speaker 23. The signal is input to the reception detection circuit 204 and the data demodulation circuit 205.

The calling signal is demodulated by the data demodulation circuit 205.

It is input to the control circuit 206 and operates the pager 211.
let In this state, the output of the reception detection circuit 204° is input to the control circuit 206 and the reception display 201.

I feel empowered. Here, when the talk switch 209° is set to the talk state, data is output from the control circuit 206.

The talk signal is input to the evening modulation circuit 210, and the modulation 10
The signal is then modulated and transmitted by the transmitter 20. Said anti.

The talk signal received by the antenna 1 is received and demodulated by the receiver 11, and sent to the reception detection circuit 108 and data demodulation.

This is the input of the contact A of the circuit 109 and the changeover switch 120.

Ru. The data demodulation circuit 109 converts the talk signal into 15
It is demodulated and input to the control circuit 1.16. Control circuit 116
- The hook switch 118 is activated by the talk signal.
・Connect to the B side. The above operations connect the handset and the line. The double-density S2 from the line is passed through the hybrid circuit 117 to the low frequency amplifier 1142 (
7. The signal is amplified by the transmitter 10 after passing through the switching circuit 119.
Modulated and transmitted. In the handset, the signal 82R received by the antenna 2 is received by the receiver 21, demodulated, and output from the speaker 23.

The signal S1 converted into an electric signal by the microphone 22 is modulated and transmitted by the five transmitters 20. With the antenna 1.

The received signal S1R is received by a receiver, demodulated, and transmitted.

A low frequency amplifier is connected to the selector switch 120.

115. A signal is sent to the low frequency amplifier 115.

No. S1 passes through the hybrid circuit 117 and is turned H100.
sent to. Handset and base uni here.

If communication with the receiver becomes impossible, the above-mentioned receiver.

No signal is input to the signal detection circuit 108 (see above).

The reception detection circuit 108 controls the carrier wave discontinuation signal NCR.

circuit 116, automatic call receiving circuit 111, and the timer line 11
Output to 2. The timer circuit 112 causes the automatic
If the time during which communication is not possible between the handset and the base unit exceeds a value, the incoming call circuit 111 switches both the changeover switch 119 and the changeover switch 120 to the B contact. This condition M2+・8
・ is in the automatic call receiving state, and when there is an incoming call, the above call is received.

The incoming signal from the amount detection circuit 113 is input to the timer circuit 11g, and is delayed and sent to the automatic incoming call circuit 111''.
Enter. The automatic call receiving circuit 111 inputs the on-hook signal to the picture design circuit 116 and sets the hook key 5 switch 118 as an on-hook side B contact. Said control.

The circuit 116 D/A's audio information from the memory device 102.
It is taken out via the circuit 103 and the changeover switch 120
The above through the low frequency amplifier 115 via the contact B of ゜.

Audio information is output to the hybrid circuit 117. Previous 10
Dial the calling party's phone number using the voice information.

request. Its dial pulse signal or da.

The ear tone signal is transmitted from the line 100 to the foot.

cross switch 1180B contact, the hybrid circuit.

117, the switching circuit w5 via the low frequency amplifier 114
Through the B contact of 119, the A/D circuit 101 and the receiving circuit/
104. When the receiving circuit receives a dial pulse signal or a dial tone signal, it is stored in the memory device 105 and at the same time the A/.0 circuit is stopped so that the signal is not stored in the memory device 102.

After memorizing the phone number, send a message.

The A/D circuit 101 requests the memory device.

102, and when finished, use the hook switch 102.

Switch switch 118 to the A contact and disconnect the line. That's all.

The message and telephone number of the destination are imported into the memory 5 device. Also, this automatic call receiving state is han.

On the set side, the calls are also made.

If the switch 209 is not set to talk mode, the above.

It can be operated by a timer circuit 112. .

If the above operation is made into a 70-chart, it becomes 10 as shown in FIG.

Next, the handset and the base unit.

When communication becomes possible between the two, a signal is input again to the reception detection circuit 108 and is conveyed to the control circuit 116.

The wave interruption signal NCR is no longer input. If there is an automatic call reception, the control port circuit 116 outputs a call reception presence/absence signal RC to the data modulation circuit 107 and sends it to the handset via the transmitter 10. On the handset side, the receiver 21 and the data demodulation circuit 205 demodulate the incoming call presence/absence signals R and C, and output them to the side/0 circuit 20.
6. The control circuit 206 is connected to the incoming call indicator 2.
Displays whether there is an incoming call at 02. Then use switch 208 to select from multiple incoming calls and send a message.

The continuous output signal Rs is input to the control circuit 206. .

The control circuit 206 sends a message read signal R85 through the data modulation circuit 210 and the transmitter 20.

and send it to the pace unit. The receiver 11 and front.

A read signal demodulated by the recorded data demodulation circuit 109.

The number R8 is input to the control circuit 116 and the memory.

The message from the device 102 is converted into 10-tone information by the 1/A circuit 103 and sent to the handset via the transmitter 10. Said hand the message in this way.

You will receive it as a set. Next, to dial the destination from which the message was received, the switch 212 is turned on and the automatic dialing signal j5AD is input to the control circuit 206. If the automatic dialing MAD.

Via the data modulation circuit 210 and the transmitter 20.

delivered to the pace unit. The signal is received and demodulated by the receiver 11° and the data demodulation circuit 109.

The automatic dial signal AD is input to the control circuit 1162°.11. The control circuit 116 is written in the memory device 105 with the hook switch 118 as a B contact.

A call tone will be generated for the memorized caller phone number.

input to the circuit 110 and the low frequency amplifier 115 and the
The line is sent out through the hybrid circuit 117 and the 5B contact of the hook switch 118. In this way, automatic dialing is performed to the originator.If the above operation is referred to as a flowchart, the result will be as shown in FIG. Note that in this configuration, there is no connection between the handset and the pace unit.

They communicate on two different frequencies. In this way, the call is received when the handset is in the self-receiving state at 10.

Receives messages from the sender and automatically sends messages.

ial is possible.

A specific embodiment of the present invention is shown in FIGS. 5 and 6. FIG. 5 is a block diagram of the base unit, and FIG. 6 is a block diagram of the 15-unit No.A. The same components and elements as in FIGS. 1 and 2 are given the amount of rotation. In Figures 5 and 6.

Since the basic operations are the same as those in FIGS. 1 and 2, we will focus on the differences. Communication between the /%n doset and the pace unit is possible! (・12
・Receipt detection circuit “10
No signal is input to 8. The reception detection circuit 108
The carrier wave discontinuation signal NCR is sent to the control circuit 116.

input. The control circuit 116 controls an automatic call reception circuit 111 and a timer circuit 112, and when the time during which communication between the handset and the base unit is not possible exceeds a certain value, a changeover switch 119 and a changeover switch are activated.

Both contacts with 120 are switched to B contacts. this.

The state is automatic incoming call state, times! When there is an incoming call from 100, the calling detection circuit 113 outputs a signal 0 signal BL to the control circuit 116, which is delayed by the timer circuit 112 and input to the automatic call receiving circuit 111. Said automatic incoming call.

The circuit 111 sends a hook signal to the control circuit 116.

input, and the hook switch 118 becomes the 3-contact point on the on-hook side. Thereafter, the 15 voice information stored in the memory device 412 is converted into a voice signal by the voice synthesis circuit 106 and switched.

The signal is transmitted to the line 100° via the contact point of the switch 4130A and one point of the changeover switch 1200B, through the low frequency amplifier 115, the hybrid circuit 117, and the hook switch 118. The voice signal sends a message to the caller asking them to dial the phone number. Said source.

The dial pulse signal or dial-down signal from the line 100 is sent to the receiver circuit 104 and the A 100 via the 7-way switch 118, the hybrid circuit 117, the low frequency amplifier 114°, and the changeover switch.
It is input to the circuit 101, the line check circuit 410, and the code identification circuit 411. The receiving circuit 104 is a memory.

The telephone number of the oscillation source is stored in the device 105. At the same time as receiving the telephone number, the line check circuit 41
0 checks whether the line is disconnected. If the line is disconnected, a disconnection signal is input to the automatic call receiving circuit 111, and the hook switch 118 is turned off/hook to the A contact side. Also, in the above message, I was instructed to enter the code to enter the break, and after dialing the phone number, I entered the break code, and then had the child speak 1st - 3rd meso and asked them to enter the break code.

Show. Separator code at the end of remembering the phone number.

When input, the code identification circuit 411 identifies the code.

The output is input to the control circuit 116 and memory device 102. Next, an audio signal is inputted from the line 100 in the same manner as the dial signal, converted into an analog-to-digital signal by the A/D circuit 101, and stored in the memory device 102. In this way, the message from the sender 1' is stored, and when the message ends and the delimiter code is input, the control circuit 116 connected to the code identification circuit 411 stores the message in the memory device 412. voice information and the telephone stored in the memory device 105;

The voice synthesis circuit verifies the originator's telephone number based on the number.If there is no problem with the originator's telephone number.

If there is a problem, end the call and request re-input 100
Automatically receive calls in this way. Also a handset.

To confirm the incoming message, set the changeover switch 413 to the B contact, and as in the case of FIGS. It is modulated by the FM modulator 403 via the B contact of the switch 413 (the TX signal is modulated).

These are a stop signal, a CH double signal, and a channel signal. ) The signal is transmitted to the antenna 1 via a high frequency amplifier 402 and a band pass filter 401 which is set to a first frequency.

be done. On the handset, 0.0 received by antenna 2.
The 15° signal is passed through a bandpass filter 605 and a high frequency amplifier.

606 and a local oscillator 608 and mixer circuit 607.

Make it an interlayer wave. After that, an intermediate frequency amplifier 609,F.

It is demodulated by an M demodulator 610 and passed through a low frequency amplifier 611.

This leads to Bee Power 23. Also, automatic dialing can be done by switch 32.
12 and automatically dials the control circuit 206.

Input signal AD. The auto-dial signal AD- is passed through a data modulation circuit 210 and a low frequency amplifier 604.

After that, the FM-1 is modulated by the modulator 603, and the high frequency amplifier 6
02 and a second frequency band-pass filter 601 to be sent to the heath unit 10. base unit・
Then, the band pass filter 404, the high frequency amplifier 405,
The local oscillator 409 and mixer circuit 406 connect the intermediate station and
Make waves. Thereafter, the automatic dial signal +5 AD is input to the control circuit 116 through the intermediate frequency amplifier 407, FM demodulator 408, and data demodulation circuit. Said control.

A circuit 116 turns on and off the hook switch 118 and connects the memory device 105 to store the oscillating optical telephone number.

control, switch 414 is turned on and a call tone is generated.

Dial tone signal by circuit between the above! To 100...
0.16 ・ Perform automatic dialing.

Further, detection of whether or not communication is possible between the handset and the base unit may be performed as follows.

In order to save power, the non-N handset is configured so that only the receiving side is powered on, and the output is output in the form of a pulse with 5 predetermined IDs superimposed at a predetermined frequency (
. Therefore, it is sufficient to output a signal from the base unit at regular intervals and detect the response of the handset.

[Effects of the Invention] According to the present invention, when the handset becomes unable to communicate with the base unit or does not respond to a call, it becomes an automatic incoming call, and the messages and caller's telephone number are memorized during that time. Possesses means and can communicate.

The message and 15 callers can be automatically dialed from the rang handset.

[Brief explanation of drawings]

FIG. 1 shows a cordless telephone according to an embodiment of the present invention. FIG. 2 is a block diagram of the base unit of the present invention. - A 2-degree configuration diagram of an actual cordless telephone handset; FIG. 3 is a flowchart of the operation at the time of receiving a call in FIGS. 1 and 2; and FIG. Flowchart when operating the dynamic dial. FIG. 5 is a prologue diagram of another embodiment of the base unit, and FIG. 6 is a brochure diagram of another embodiment of the handset. 108, 204...Reception detection circuit, 104...Reception circuit, 101...A/D circuit, ゛103-D/A circuit, 102.105-
)t-t-! J device. . 】0 】5 30 2 closed

Claims (1)

[Claims] 1. A cordless telephone that has a handset with a microphone and a speaker and a base unit connected to a telephone line, and communication between the handset and the base unit is performed by radio waves. It has a switching circuit that switches from a normal call/receive state to an automatic call/receive state using a detection circuit that detects when communication is no longer possible and a timer circuit that detects when a predetermined time has elapsed since communication is no longer possible. Or a receiving circuit that receives dial tone signals and an A/D that converts audio information from analog to digital.
The circuit and the memory device allow the receiving circuit to receive the voice information and the calling telephone number in the form of a dial pulse signal or dial tone signal from the calling telephone after receiving the call in the automatic call originating/receiving state. The cordless telephone is characterized in that when communication with a base unit becomes possible, the presence or absence of an incoming call is displayed on the handset, voice information is received by the handset, and automatic dialing is performed based on the data of the calling party's telephone number in the memory device.