JP2638326B2 - Cordless telephone - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention comprises a master unit connected to a telephone line and having a message recording function, and a plurality of slave units each connected by a wireless line to the master unit. The present invention relates to a cordless telephone, and more particularly, to a cordless telephone capable of transmitting a message to a specific child device.

[0002]

2. Description of the Related Art Conventionally, a cordless telephone having a message recording function (for example, an answering machine function) generally used includes a master unit which is a fixed unit having an answering machine function connected to a telephone line, and a master unit. The mobile device is composed of a plurality of mobile devices, each of which is a portable unit connected by a wireless line, and inputs a business message, a message message, and a main message sent from the partner terminal via a telephone line. The message message input from the unit and the message message transmitted from an arbitrary slave unit are recorded on a recording unit (formed of a magnetic memory, an IC memory, or the like) built in the master unit. ing.

[0003] The user of the cordless telephone operates the base unit, operates an external remote controller from the telephone line,
By performing an operation such as an extension remote control operation from an arbitrary slave unit to the master unit, it is possible to listen to a message or a message message recorded in the recording unit of the master unit from the operation unit. .

[0004]

In recent years, the number of homes using such a cordless telephone having a plurality of slave units has been increasing. In this case, however, the number of slave units is one for each family member. In general, the usage mode is such that each room or one room is used. When two and three households live together, it is conceivable to use one child unit for each household. That is, each child device is used by a specific user at home.

[0005] However, in the above-mentioned conventional cordless telephone, a message message or a message message recorded in the master unit is transmitted in response to a reproduction request from any slave unit. Even when it is desired to convey a message, there is a problem that the contents of the message are asked by another unrelated user.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and has as its object to enable transmission of a message only to a specific slave unit to which a message is to be transmitted by a playback request from the slave unit. An object of the present invention is to provide a cordless telephone in which the number of parts is reduced by collectively storing message messages for the child device in a memory provided in the parent device.

[0007]

In order to solve the above-mentioned problems, a cordless telephone according to the present invention is connected to a telephone line and has a master unit having a function of recording a message, and each of the master units is connected to a wireless line. In a cordless telephone having a plurality of connected slave units, a unique code is assigned to each of the plurality of slave units, and a specific slave unit to which a message message is to be transmitted is provided to the master unit. Message recording / reproducing means for recording and playing back a message which is input together with the code of the child device, and after the recording of the message is completed by the message recording / reproducing device, Control means for controlling the reproduction of the message message and transmission to the specific slave unit only when there is a reproduction request; Unit is configured by the message recording and reproducing unit and the speech synthesis analysis circuit and the memory, in which collectively stores the voice mail message to all the slave unit to the memory provided in the master unit.

In the cordless telephone according to the present invention, a unique code is assigned to each of the plurality of slave units, and the code of a specific slave unit to which a message message is to be transmitted is stored in the master unit. And a message recording / reproducing means for recording and playing back the message input together with the code of the slave unit. After the message recording / reproducing means completes the recording of the message, the stored code is read out, and the read code is read out. And performs a control to send a signal indicating the presence of a message to the slave unit of the destination, and reproduces a message message according to a playback request from the slave unit of the destination. Control means for controlling transmission to the slave unit. The message recording / reproducing means includes a message recording / reproducing unit, a speech synthesis analysis circuit, and a memory. The message provided to all the slaves is collectively stored in the memory provided in the master, and each of the plurality of slaves has a message from the master transmitted to itself. Display means for displaying the presence of a message by receiving the signal, and a request to reproduce the message message to the master unit by an operation of the user of the slave unit based on the display content displayed on the display means. And a reproduction requesting means for performing the reproduction.

[0009]

The message transmitted from the telephone line together with the code of the specific slave unit, the message message input from the input unit of the master unit together with the code of the specific slave unit, and another code together with the code of the specific slave unit The message message input from the child device is recorded together with the code by the message recording / reproducing means inside the parent device. In this case, the message recording / reproducing means is composed of a message recording / reproducing unit, a speech synthesis analysis circuit, and a memory, and message messages for all the child devices are collectively stored in a memory provided in the parent device.

When the control means terminates the storage of the code and the recording of the message by the message recording / reproducing means,
The stored code is read again, a transmission operation is performed to the child device of the read code, and control is performed to transmit a signal indicating the presence of a message to the child device of the transmission destination.

On the other hand, when the corresponding slave unit receives the message indicating that there is a message from the master unit transmitted to itself, the corresponding slave unit displays a message indicating that there is a message. This display may be lighting (or blinking) of a lamp or character display by a liquid crystal display device or the like.

When the user of the slave unit performs a reproduction request operation on the basis of the display contents displayed on the display unit, the reproduction request unit detects this operation and sends the reproduction request to the master unit. Send a signal.

When the master unit receives the reproduction request signal, it confirms whether the request is a reproduction request from a specific slave unit, and then reproduces a message from the message recording / reproducing means. Send to

Thus, only the specific child device can listen to the message. Further, the message messages to all the slaves are stored collectively in a memory provided in the master, so that the number of parts does not increase as compared with the conventional master.

[0015]

An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is an electric block diagram of a base unit A constituting a cordless telephone of the present invention, and FIG. 2 is an electric block diagram of a slave unit B constituting a cordless telephone of the present invention.
However, since all of the slave units B have the same configuration (however, the identification code, which is a unique code, differs depending on each slave unit), one slave unit B is illustrated in the drawing. Only shows.

In FIG. 1, a rectifier circuit 2 for maintaining a constant DC polarity is connected to a telephone line 1, and the rectifier circuit 2 is connected via a hook switch 3 to a mixture of a transmission signal and a reception signal. The communication circuit 4 for separation is bidirectionally connected.

A radio transmission / reception circuit 5 having an antenna 6 for transmitting / receiving radio waves is bidirectionally connected to the communication circuit 4.

The control circuit 11 for controlling the operation of the master unit A as a whole includes a message recording / reproducing section 12, a data transmitting / receiving section 1,
3, the recording / reproducing operation detecting unit 14, the control unit 15, and the like.

The output of the recording / reproducing operation detecting section 14 to which the output of the function button 16 is guided is guided to the control section 15. The control unit 15, the message recording / reproducing unit 12, and the data transmitting / receiving unit 13 are each connected bidirectionally, and the control unit 15 outputs a switching control signal to the hook switch 3. .

The recording / reproducing operation detecting unit 14 and the communication circuit 4
The data transmission / reception unit 13 and the wireless transmission / reception circuit 5, and the message recording / reproducing unit 12 and the voice synthesis analysis circuit 7 are each connected bidirectionally.

Also, the speech synthesis analysis circuit 7 and the speech circuit 4,
Each of the voice synthesis analysis circuit 7 and the memory 8 has a bidirectional connection. The output of the microphone 10 is connected to the speech synthesis analysis circuit 7 via the amplifier 9.

The voice synthesis analysis circuit 7 includes an A / D converter for converting an analog signal to a digital signal, and a D / A converter for converting a digital signal to an analog signal.
Data is exchanged with the memory 8.

That is, based on the control signal from the message recording / reproducing unit 12, the voice data from the communication circuit 4 and the microphone 10 is stored in a predetermined storage area of the memory 8, and the stored voice data is read out. The signal is sent to the circuit 4.

The memory 8 is composed of a storage medium such as a semiconductor memory, and responds to an incoming call in the answering machine mode, a message sent through the telephone line 1 in the answering machine mode, and a code of a specific slave unit in the answering machine mode. (Hereinafter referred to as an identification code) together with the message message transmitted from the microphone 10 of the base unit A together with the identification code of the specific slave unit, and the identification code of the specific slave unit B together with the identification code of the specific slave unit. With another slave unit B
Each voice data of the message message transmitted from is stored.

The message recording / reproducing section 12 drives the speech synthesis / analysis circuit 7 based on the recording / reproducing signal from the control section 15, and stores a message message from the microphone 10 and a message message from the communication circuit 4 in the memory 8. Or control to read out a business message or a message stored in the memory 8. Further, the message recording / reproducing unit 12 stores the identification code of the specific slave unit and address data indicating the storage position of the input message together with the identification code in the memory 8 in association with each other.

The data transmission / reception section 13 checks the identification code between the parent device A and the child device B, and transmits and receives a communication control signal. The data transmission / reception unit 13 includes the wireless transmission / reception circuit 5
, The extension operation signal sent from any one of the slave units B is detected as to which slave unit B is the recording / reproduction operation of the message message, and the detection signal is output to the control unit 15.

The recording operation detecting section 14 detects which of the slave unit B the operation signal input from the function button 16 and the remote operation signal transmitted through the telephone line 1 is for recording / reproducing a message message. Then, the detection signal is output to the control unit 15.

The control unit 15 includes software, and includes a detection signal from the recording / reproducing operation detecting unit 14, a control signal from the data transmitting / receiving unit 13, and a message recording / reproducing unit 12.
The operation of each unit is controlled based on a signal from the controller.

The radio transmission / reception circuit 5 switches between transmission and reception and, when operating as a transmission section, transmits a communication control signal from the data transmission / reception section 13 and a reception signal from the communication circuit 4 to the slave unit B side. And performs a modulation process to convert to a required frequency for transmission to the slave unit B side, and when operating as a receiving unit, performs a demodulation process of demodulating a high-frequency radio signal from the slave unit B and transmits a transmission signal. A communication control signal is output to the circuit 4 to the data transmission / reception unit 13.

The function buttons 16 include, for example, a call button and a call end button, as well as buttons for recording a message message and the like, in addition to buttons provided in a normal master unit.

In FIG. 2, an antenna 17 for transmitting and receiving radio waves to and from the base unit A is connected to a radio transmission / reception circuit 18, and an output of the radio transmission / reception circuit 18 is connected to a speaker 20 via an amplifier 19. ing.

The control circuit 23 for controlling the operation of the slave unit B as a whole comprises a data transmitting / receiving unit 24, a button identifying unit 25, a control unit 26 and the like.
4 and the wireless transmission / reception circuit 18 are bidirectionally connected.

The data transmitting / receiving unit 24 and the control unit 26 are bidirectionally connected, and the output of the button identification unit 25 is led to the control unit 26. The output of the function button 22 is led to the button identification unit 25.

The function buttons 22 include a record button, a play button, and the like for a message message, in addition to buttons such as a call button and a call end button, which are provided in a normal slave unit.

Further, a signal indicating the presence of a message is output from the control unit 26 to the display circuit 21.

The radio transmission / reception circuit 18 switches transmission / reception and, when operating as a transmission unit, transmits a communication control signal from the data transmission / reception unit 24 and a transmission signal from a microphone (not shown) to the master unit A side. When performing a modulation process for converting to a required frequency for transmission to the master A side and operating as a receiving unit, a demodulation process for demodulating a high-frequency radio signal from the master A is performed, and 20
The communication control signal is output to the data transmission / reception unit 24.

The data transmission / reception unit 24 checks the identification code between the parent device A and the child device B, and transmits and receives a communication control signal.

The button identification unit 25 determines the type of the operation signal input from the function button 22. For example, when the operation signal is a request for reproducing a message, the button identification unit 25 outputs the identification signal to the control unit 26. It has become.

The control section 26 includes software, and controls the operation of each section based on a control signal from the data transmission / reception section 24 and an identification signal from the button identification section 25.

The display circuit 21 is constituted by an LED, a liquid crystal display device, or the like.
A display for notifying the user of the presence of a message message to his / her child unit is performed.

Next, the operation of the cordless telephone having the above configuration is described as follows: (1) When a message is recorded on the master unit A for a specific slave unit B among the plurality of slave units B, (2) When recording a message by remote control to a specific slave unit B among the slave units B, (3) a plurality of slave units B
The following describes the case where a message is recorded from another slave B to a particular slave B, and the case where (4) the recorded message is reproduced by the particular slave B.

However, in the following description, when it is necessary to distinguish the slave unit B, the slave unit B is distinguished by adding a one-digit number after the sign B.

(1) A case where a message is recorded on the master unit A for a specific slave unit B among a plurality of slave units B.

The message communicator first operates the record button included in the function button 16 of the master unit A, and then an identification code indicating to which slave unit B the message message to be inputted is to be sent. Enter The recording button operation signal and the identification code are detected by the recording / reproducing operation detection unit 14, and the detection signal is provided to the control unit 15.

The control unit 15 sets a recording mode for a specific slave unit B based on the detection signal, and outputs a recording signal to the message recording / reproducing unit 12. Message recording replay part 1
2 drives the speech synthesis analysis circuit 7 based on the recorded signal.

Thereafter, the message is transmitted by the microphone 10
When a message message is input by voice from the user, the message message is converted into an electric signal, and is appropriately amplified by an amplifier 9 and then given to a speech synthesis analysis circuit 7, where data conversion is performed and a predetermined storage in a memory 8 is performed. Store in the area.

At the same time, the message recording / reproducing unit 12
An identification code of the specific slave unit B given from the control unit 15;
The message data input from the microphone 10 is stored in association with address data indicating the storage position in the memory 8.

Thereafter, when the communicator who has finished recording the message operates the function button 16 to input a signal indicating the end of the message, the signal is detected by the recording / reproducing operation detecting section 14, and the detection is performed. The signal is provided to the control unit 15.

The control unit 15 cancels the recording mode based on the detection signal and outputs a recording stop signal to the message recording / reproducing unit 12. Message recording / replay unit 12
Stops the operation of the speech synthesis analysis circuit 7 based on the recording stop signal.

Further, the control unit 15 includes a recording / reproduction operation detecting unit 14.
In order to read the identification code of the specific slave unit B stored in the message recording / reproducing unit 12 based on the detection signal indicating the end of the recording from, and to transmit a message indicating that there is a message to the slave unit B of the identification code Command signal of the data transmitting / receiving unit 1
Output to 3.

In response to the command signal, the data transmitting / receiving section 13 sends an identification code signal of the specific slave unit B and a signal indicating the presence of a message to the wireless transmitting / receiving circuit 5, and the wireless transmitting / receiving circuit 5 transmits these signals. The frequency is converted to a possible frequency and transmitted from the antenna 6 to the specific slave unit B side.

This signal is received by the wireless transmission / reception circuit 18 of the specific slave unit B, where it is demodulated to the original signal and supplied to the data transmission / reception unit 24. The data transmission / reception unit 24 checks the relationship between the master unit A and the slave unit B based on the identification code signal included in the received signal, and when the identification code is the identification code assigned to itself, the identification code The response signal is transmitted to the wireless transmission / reception circuit 18 and transmitted to the master unit A via the antenna 17.

Further, the data transmitting / receiving section 24 sends a signal indicating presence of a message included in the received signal to the control section 26. The control unit 26 outputs a control signal to the display circuit 21 based on the signal indicating the presence of the message, and drives the display circuit 21 to display the presence of the message. This display is displayed as characters on a display screen such as an LED or a liquid crystal display device. However,
A lighting (or blinking) display such as a lamp indicating the presence of a message may be used.

On the other hand, in the base unit A, the identification code signal and the response signal transmitted from the specific handset B are received by the wireless transmission / reception circuit 5 and transmitted to the control unit 15 via the data transmission / reception unit 13. The control unit 15 ends the operation of sending the message message to the specific slave unit B based on the response signal.

(2) A case where a message is recorded by remote control to a specific slave unit B among a plurality of slave units B.

In this case, it is assumed that the present cordless telephone is set to the answering machine mode. In this state,
A message transmitter at a remote place sends a call signal to the cordless telephone through the telephone line 1. In base unit A, when this outgoing call signal is detected by an incoming call detection unit (not shown), an incoming call detection signal is provided to control unit 15.

The control unit 15 outputs a control signal to the hook switch 3 to make the hook switch 3 off-hook based on the incoming call detection signal, and outputs a response signal to the message recording / reproducing unit 12. The message recording / reproducing unit 12 drives the speech synthesis analysis circuit 7 based on the response signal.

Thus, the voice synthesis analysis circuit 7 reads out the response message stored in the memory 8 and sends it out to the communication circuit 4 to output it to the telephone line 1 via the hook switch 3 and the rectification circuit 2.

Thereafter, the message communicator who has heard the response message responds to the response message, and an identification code (to be specific to the child device B) indicating to which child device B the message message to be transmitted is to be sent. Is transmitted. This identification code is detected by the recording / reproducing operation detecting unit 14 via the rectifying circuit 2, the hook switch 3, and the communication circuit 4, and the detection signal is given to the control unit 15.

The control unit 15 sets a recording mode for a specific slave unit B based on the detection signal, and outputs a recording signal to the message recording / reproducing unit 12. Message recording replay part 1
2 drives the speech synthesis analysis circuit 7 based on the recorded signal.

Thereafter, the message transmitted by the message transmitter through the telephone line 1 is guided to the voice synthesis analysis circuit 7 through the rectification circuit 2, the hook switch 3, and the communication circuit 4, where the data conversion is performed. And stored in a predetermined storage area of the memory 8.

At the same time, the message recording / reproducing unit 12
An identification code of the specific slave unit B given from the control unit 15;
The message message sent from the message sender is stored in association with address data indicating the storage position in the memory 8.

Thereafter, when the communicator who has finished transmitting the message message goes on-hook on the telephone at the remote place, the call end signal (busy signal) sent from the exchange switches the rectifier circuit 2, hook switch 3, and call circuit 4 on. Is detected by the recording / reproducing operation detecting unit 14 via the
Given to.

The control unit 15 releases the recording mode based on the detection signal, and outputs a recording stop signal to the message recording / reproducing unit 12. Message recording / replay unit 12
Stops the operation of the speech synthesis analysis circuit 7 based on the recording stop signal.

The control unit 15 is provided with a recording / reproduction operation detecting unit 14.
In order to read the identification code of the specific slave unit B stored in the message recording / reproducing unit 12 based on the detection signal indicating the end of the call from, and to transmit a message indicating that there is a message to the slave unit B having the identification code Command signal of the data transmitting / receiving unit 1
Output to 3.

In response to the command signal, the data transmitting / receiving section 13 sends an identification code signal of the specific slave unit B and a signal indicating that there is a message to the radio transmitting / receiving circuit 5, and the radio transmitting / receiving circuit 5 transmits these signals. The frequency is converted to a possible frequency and transmitted from the antenna 6 to the specific slave unit B side.

This signal is received by the wireless transmission / reception circuit 18 of the specific slave unit B, where it is demodulated to the original signal and supplied to the data transmission / reception unit 24. The data transmitting / receiving unit 24 checks the relationship between the master unit A and the slave unit B based on the identification code signal included in the received signal, and when the identification signal is the identification signal assigned to itself, the identification signal is The response signal is sent to the wireless transmission / reception circuit 18, which converts these signals into transmittable frequencies and transmits the signals to the master A from the antenna 17.

The data transmitting / receiving section 24 sends a signal indicating the presence of a message included in the received signal to the control section 26. The control unit 26 outputs a control signal to the display circuit 21 based on the signal indicating the presence of the message, and drives the display circuit 21 to display the presence of the message. This display is LE
Characters are displayed on a display screen such as D or a liquid crystal display device. However, a lighting (or blinking) display such as a lamp indicating the presence of a message may be used.

On the other hand, in base unit A, the identification code signal and the response signal transmitted from specific handset B are received by radio transmission / reception circuit 5, and radio transmission / reception circuit 5 demodulates these signals into the original signal. And sends it to the data transmitting / receiving unit 13. The control unit 15 ends the operation of sending the message message to the specific slave unit B based on the response signal sent from the data transmission / reception unit 13.

(3) A case where a message message is recorded from a specific slave unit B1 to a specific slave unit B2 among a plurality of slave units B.

After the message communicator who is the user of the handset B1 picks up the handset B1 and operates the recording button of the message message included in the function button 22, the message message to be transmitted from now on is sent to any handset B. An identification code indicating whether the message is a message message is input.
The button identification unit 25 identifies these operations, and supplies the identified operation signals to the control unit 26.

The control section 26 sends a command signal for controlling the data transmission / reception section 24 based on the operation signal. The data transmission / reception unit 24 sends a recording signal of a message message, an identification code signal, and the like to the wireless transmission / reception circuit 18 in accordance with the command signal. Transmit to the machine A side.

This transmission signal is received by the radio transmission / reception circuit 5 via the antenna 6 of the base unit A, where it is demodulated into the original signal and supplied to the data transmission / reception unit 13. The data transmission / reception unit 13 receives the recorded message of the message message and sends a response signal and a wireless communication path setting signal between the parent and child to the wireless transmission / reception circuit 5, which converts these signals into transmittable frequencies. Then, the signal is transmitted from the antenna 6 to the slave unit B1. As a result, a wireless communication path is formed between the master unit A and the slave unit B1.

At the same time, the control unit 15 of the master unit A sets the recording mode for the specific slave unit B2 to which the identification code is assigned, based on the identification code signal sent from the slave unit B1. Then, a recording signal is output to the message recording / reproducing unit 12. The message recording / reproducing unit 12 drives the speech synthesis analysis circuit 7 based on the recorded signal.

Thereafter, the handset B is sent by the message transmitter.
The message message (voice signal) input from the microphone 1 (not shown) is transmitted from the antenna 17 to the master A via the wireless transmission / reception circuit 18 on the slave B1 side, and is transmitted via the antenna 6 on the master A side. The signal is received by the wireless transmission / reception circuit 5, and is guided to the speech synthesis analysis circuit 7 via the communication circuit 4. Then, the data is converted into storable data and stored in a predetermined storage area of the memory 8.

At the same time, the message recording / reproducing unit 12
The identification code of the specific slave unit B2 given from the control unit 15 is stored in association with the address data indicating the storage position in the memory 8 of the message message sent from the message sender.

Thereafter, when the communicator who has finished transmitting the message operates the call end button included in function button 22 of handset B1, handset B transmits a call end signal to base unit A.
After the transmission, the wireless communication path between the parent and child is opened.

The control unit 15 of the master unit A releases the recording mode based on the call end signal from the slave unit B1,
A recording stop signal is output to the message recording / reproducing unit 12. The message recording / reproducing unit 12 stops driving the speech synthesis analysis circuit 7 based on the recording stop signal.

The control unit 15 is provided with the data transmitting / receiving unit 13
A command signal for reading the identification code of the specific slave unit B2 stored in the message recording / reproducing unit 12 based on the call termination signal from Is output to the data transmission / reception unit 13.

In response to the command signal, the data transmitting / receiving section 13 sends an identification code signal of the specific slave unit B2 and a signal indicating that there is a message to the radio transmitting / receiving circuit 5, and the radio transmitting / receiving circuit 5 transmits these signals. Convert to possible frequency and antenna 6
To the specific slave unit B2.

This signal is received by the radio transmission / reception circuit 18 of the specific slave unit B2, where it is demodulated into the original signal and supplied to the data transmission / reception unit 24. Data transmission / reception unit 24
Then, the relationship between the master unit A and its own slave unit B2 is checked by the identification code signal included in the received signal, and when this identification code is the identification code assigned to itself, the identification code signal and the response signal are Is transmitted to the wireless transmission / reception circuit 18, which converts these signals into transmittable frequencies and transmits the signals to the master A from the antenna 17.

The data transmitting / receiving unit 24 sends a signal indicating that there is a message included in the received signal to the control unit 26. The control unit 26 outputs a control signal to the display circuit 21 based on the signal indicating the presence of the message, and drives the display circuit 21 to display the presence of the message. This display is LE
Characters are displayed on a display screen such as D or a liquid crystal display device. However, a lighting (or blinking) display such as a lamp indicating the presence of a message may be used.

On the other hand, in the base unit A, the identification code signal and the response signal transmitted from the specific handset unit B2 are received by the radio transmitting / receiving circuit 5, where they are demodulated into the original signals and transmitted to the data transmitting / receiving unit 13. Send out. The control unit 15 ends the operation of sending the message message to the specific slave unit B2 based on the response signal from the data transmitting / receiving unit 13.

(4) A case where a recorded message message is reproduced by a specific slave unit B. The user of the specific slave unit B (the side receiving the message message) is the display circuit 2 of the slave unit B.
After confirming that message 1 is displayed, the user operates a message message playback button included in the function button 22. The button identification unit 25 identifies this button operation, and supplies the identified operation signal to the control unit 26.

The control section 26 sends out a command signal for controlling the data transmitting / receiving section 24 based on the operation signal. The data transmission / reception unit 24 transmits the identification code signal and the reproduction signal of the message message to the radio transmission / reception circuit 18 based on the command signal, and the radio transmission / reception circuit 18 converts these signals into transmittable frequencies and transmits the signals from the antenna 17 Transmit to the machine A side.

The transmission signal is received by the radio transmission / reception circuit 5 via the antenna 6 of the base unit A, demodulated into an original signal, and provided to the data transmission / reception unit 13. When the identification code signal included in the received signal matches between the parent device A and the child device B, the data transmission / reception section 13 sends the response signal and the wireless communication channel setting signal between the parent and child to the wireless transmission / reception circuit 5. And
The wireless transmission / reception circuit 5 converts these signals into transmittable frequencies and transmits the signals from the antenna 6 to the slave unit B side. Thereby, a wireless communication path is formed between the master unit A and the slave unit B.

At the same time, the control unit 15 of the base unit A outputs a reproduction signal to the message recording / reproducing unit 12 based on the reproduction signal of the message message included in the received signal. The message recording / reproducing unit 12 drives the speech synthesis analysis circuit 7 based on the reproduced signal, and accesses and reads out the storage location of the message message for the specific slave unit B stored in the memory 8.

The read message message is transmitted to the radio transmitting / receiving circuit 5 via the communication circuit 4, and the radio transmitting / receiving circuit 5 converts the data into a transmittable frequency and transmits the data from the antenna 6 to the specific slave unit B. Send to the side.

This transmission signal is received by the radio transmission / reception circuit 18 via the antenna 17 of the specific slave unit B, converted into the original message (voice signal) and sent to the amplifier 19, where it is necessary. The sound is amplified to an appropriate level and emitted from the speaker 20.

Thus, only the user of the specific slave unit B can hear the message.

[0092]

According to the cordless telephone of the present invention, the master unit can record a message only to a specific one of a plurality of slaves, and can send a message only to the specific slave. Sends a signal indicating that the message was recorded. In addition, only the specific handset performs notification indicating that the message has been recorded, so that it is possible to determine whether the message has been recorded to the handset without performing any operation on the specific handset. Can be easily confirmed. Therefore, the user of the slave unit can listen to the message message without performing a complicated operation. Further, since the message messages to all the slaves are stored collectively in the memory provided in the master, the cordless telephone of the present invention can be realized without increasing the number of parts as compared with the conventional master. Is what you can do.

[Brief description of the drawings]

FIG. 1 is an electrical block diagram of a base unit constituting a cordless telephone according to the present invention.

FIG. 2 is an electrical block diagram of a slave unit constituting the cordless telephone according to the present invention.

[Explanation of symbols]

 A parent device 1 telephone line 4 communication circuit 5 wireless transmission / reception circuit 7 voice synthesis / analysis circuit 8 memory 11 control circuit 12 message recording / reproduction unit 13 data transmission / reception unit 14 recording / reproduction operation detection unit 16 function buttons B slave unit 18 wireless transmission / reception circuit 21 display Circuit 22 Function button 23 Control circuit 24 Data transmission / reception unit 25 Button identification unit

Claims (2)

(57) [Claims] 1. A cordless telephone comprising a master unit connected to a telephone line and having a function of recording a message, and the master unit includes a plurality of slave units each connected by a wireless line. A unique code is assigned to each of the slave units, and the master unit stores a code of a specific slave unit to which the message message is to be transmitted, and stores a code of the message message input together with the code of the slave unit. Message recording / reproducing means for performing recording and reproduction; and after recording of the message by the message recording / reproducing means, only when there is a reproduction request from the specific child device, the message message is reproduced and the specific child device is reproduced. Control means for controlling transmission to the message recording device , wherein the message recording / reproduction means
It is composed of an analysis circuit and a memory, and is
Message to all the slaves in the memory
A cordless telephone characterized by being stored collectively . 2. A cordless telephone comprising a master unit connected to a telephone line and having a function of recording a message, and said master unit includes a plurality of slave units each connected by a wireless line. A unique code is assigned to each of the slave units, and the master unit stores a code of a specific slave unit to which the message message is to be transmitted, and stores a code of the message message input together with the code of the slave unit. Message recording / reproducing means for performing recording and reproduction, and after recording of the message is completed by the message recording / reproducing means, the stored code is read out, a call operation is performed to the slave unit of the read out code, and the presence of the message is determined. Control signal to be transmitted to the slave unit of the transmission destination, and the message is reproduced by the reproduction request from the slave unit of the transmission destination. And control means for performing control of transmitting the signal destination handset is provided, the message recording and reproducing means, the message recording and reproducing unit and the audio multiplexer
It is composed of an analysis circuit and a memory, and is
Message to all the slaves in the memory
Display means for storing in a lump and displaying a message present by receiving a message present message from the master unit transmitted to itself to each of the plurality of slave units; A cordless telephone comprising: a playback requesting unit for requesting a playback of a message message to the master unit by an operation of a user of the slave unit based on a display content displayed on the means.