JP3437612B2 - Digital radio telephone equipment - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a digital mobile telephone.
Devices, digital mobile phones, digital cordless phones
The present invention relates to a digital wireless telephone device such as a talker. 2. Description of the Related Art A conventional analog system eliminates a call signal.
In recent years, digital radios have replaced digital mobile transmission systems.
Mobile wireless communication system that adopts
I have. This type of system uses a voice signal or data
And other communication contents, and use this coded signal
For example, a radio carrier is transmitted by a π / 4 shift DQPSK method.
Digitally modulated and transmitted.
The received modulated carrier was received and digitally demodulated.
The communication contents are reproduced by decoding this demodulated signal.
Access method between the base station and the mobile station.
Time division multiple access (TDMA)
You. FIG. 10 shows an example of the configuration of this type of system.
It is shown. This system is used for wired communication network NW.
On the other hand, a control station CS connected via a wired line CL
Control stations CS via the wired lines CL1 to CL3, respectively.
A plurality of base stations BS1, BS2, BS3 connected by
Are provided with a plurality of mobile stations MS1, MS2,. the above
Each of the base stations BS1, BS2 and BS3 is called a cell.
Forming radio zones E1, E2, E3 of predetermined diameters
I have. The mobile stations MS1, MS2,...
Base stations BS1, BS of the wireless zones E1, E2, E3
2. Connected to BS3 via wireless communication channel
You. By the way, recently, in such a system,
Digital radio telephone equipment used as mobile stations,
Voice dialing and answering machine functions can be provided.
Proposed. A voice dial transmission function is provided in the apparatus.
Use an integrated circuit for recording and playback. That is, the user
Input the name of the caller from the microphone
Digital audio signal in the integrated circuit for recording and playback
Store in dedicated memory. Also, along with that,
Enter the telephone number of the hand from the dial key,
Is associated with the digital audio signal.
And store it in the memory. In this state, use when making a call
Makes a voice input of the caller name from the microphone
This voice is recognized as a voice and the
Digital audio signal is read from the recording / playback memory.
The voice corresponding to this digital voice signal is dialed.
The confirmation sound is output from the speaker. And this
After confirming the dial confirmation voice, the user confirms the specified transmission instruction
When you input a message by voice,
The phone number is read and the phone number corresponding to this phone number is read.
Dial data is transmitted to the base station. [0006] Such a voice dial transmission function is particularly
When making a call in a car, the driving operation is adversely affected.
Because you can make a call without dropping,
It is extremely effective in terms of aspect. On the other hand, the answering machine function also has a recording function provided in the apparatus.
Use an integrated circuit for sound reproduction. That is, a collection for recording and playback
The response message is stored in advance in the memory in the integrated circuit.
Good. If an incoming call occurs with the absence mode specified,
Channel link was formed by performing automatic call answering operation
After that, a response message is sent from the memory in the recording / playback integrated circuit.
Read out the message and send it. And this response message
Decrypts the message sent by the caller after sending the message
To reproduce the baseband digital audio signal.
The signal is stored in the memory of the integrated circuit for recording and reproduction. With such an answering machine function, the
If the user does not carry the device or is busy driving
If you cannot answer the incoming call immediately,
Message is stored in the memory in the integrated circuit for recording and playback
You can read this message and listen to it later
It is very convenient because it can be done. [0009] However, this kind of conventional
The device of the above also realizes the voice dialing function,
Also, when realizing the answering machine function, the semiconductor memory
And a memory for recording and playing back audio signals in this memory.
A new integrated circuit for recording / reproducing with a path is provided.
As a result, the complexity and size of the circuit
Increases in weight and power consumption were inevitable. The present invention has been made by paying attention to the above circumstances.
The purpose is to add a large circuit
Voice dial registration and voice dialing without adding
Recording and playback of audio signals for
This improves the recognition rate of voice dialing and further
It is possible to reduce the size and weight of the device and reduce power consumption.
To provide a digital wireless telephone device. [0012] In order to achieve the above object,
According to the present invention, the sound input from the sound input means is digitized.
After converting it to an audio signal,
Modulates the digital audio signal and modulates the modulated
Coded digital signal after receiving encoded digital audio signal
Demodulated to an audio signal, and the demodulated coded digital
The digital audio signal is reproduced by decoding the audio signal.
Is audio output means corresponding to the digital audio signal of
Digital radio telephone equipment that outputs
Storage means for storing a digital audio signal;
Recognize voice signal and output the recognized data
Voice recognition means, voice dial registration control means,
And a step and dial confirmation control means. And voice
The first mode for registering the recognition dial has been set
In this state, a voice representing the name of the caller is input to the voice input means.
Coded data according to the input voice.
A digital audio signal according to the audio input.
Mutually correlate with voice recognition data output from recognition means
In the storage means. On the other hand, the second
When the mode is set, the transmission phase
If a voice representing a personal name is entered,
Transmitting the voice recognition data to the transmitting phase stored in the storage means.
It is compared with the voice recognition data of the personal name, and as a result of this comparison,
The recognition data of the input voice is stored in the stored voice recognition.
Recognition data, the stored voice recognition
The encoded digital audio signal corresponding to the
Read from the storage means and supplied to the speech codec means,
The voice corresponding to the encoded digital voice signal is
This is output from the voice output means. As a result, according to the present invention, the voice dial registration mode
Caller, the name of the calling partner
Is registered, and this is the basic recognition data for voice dialing.
Used as data. For this reason, voice dialing
The voice recognition rate can be increased. Moreover, the voice diagram
When registering a file, the voice signal indicating the
Storage means after being encoded by existing speech codec means
When the confirmation sound is played back and output,
The stored coded digital audio signal was read
The audio is decoded by the audio codec and output as audio.
You. For this reason, it is not possible to register the user's own voice.
And does not require a large memory capacity. In addition,
For registration and playback output of audio signals indicating the name of the other party
It is not necessary to provide a dedicated integrated circuit for recording and reproduction.
In addition, the registered user's own voice is decoded
Since it is output as confirmation voice as it is, the voice synthesis circuit
Is also unnecessary. In other words, after achieving a high speech recognition rate
Simple, compact and low power consumption voice dialing
Providing digital radio telephone equipment with
it can. FIG. 1 is a block diagram showing a digital camera according to an embodiment of the present invention.
FIG. 2 is a circuit block diagram showing a schematic configuration of a mobile telephone device.
You. The device of this embodiment includes an antenna 1 and a wireless unit 2
And a cradle 3 and a handset 4
You. The antenna 1 is composed of, for example, a rod antenna, and
It is attached to the outside of the vehicle body. The wireless unit 2
If installed in the trunk of a car,
Connected via a coaxial cable. Cradle 3
The wireless unit 2 is installed, for example, on an armrest in the vehicle.
Multiple signal lines, control lines, and power supply lines
Connected via cable. Handset 4 is
Cradle 3
Between multiple signal lines, control lines, and power supply lines
Connected via a curled cord. The wireless unit 2 includes a wireless circuit unit 2a,
Digital signal processing circuit 2b and wireless unit control unit 2
c, data and coded digital voice required for control
A RAM 2d for temporarily storing signals and the like, and a power supply circuit 2
e is accommodated. The power supply circuit 2e is shown in FIG.
No specified operation based on the battery output of the car battery
An operation power supply voltage Vcc is generated. Cradle 3 has a hands-free call
Speaker (hereinafter referred to as hands-free speaker) 3a
And a microphone for hands-free calls
3b) and cradle control
A circuit 3c and a hook switch 3d are provided respectively.
ing. The handset 4 has a handset call
Speaker (hereinafter referred to as a handset speaker) 4
a and a microphone for a handset call
4b and a handset
The control circuit 4c, the key input unit 4d, and the display 4e are
Each is provided. Of these, the key input section 4d
Necessary for calls such as dial keys, call keys, and end keys
In addition to general keys, a mode designation key, registration key and
Multiple function keys, including
You. The mode selection key selects between home mode and absence mode.
It is used to designate one. The registration key is
Place to register the destination name and phone number for dialing out
When registering a response message for answering or answering
Used for The message key is the caller recorded while you were away
Is used to reproduce the message message of display
4e is composed of, for example, a liquid crystal display (LCD).
D is being set by the control of the handset control circuit 4c.
Mode, destination name, destination phone number, and other communication operations
Various related information is displayed. FIG. 2 is a detailed configuration of the wireless unit 2.
3 is a circuit block diagram showing the cradle 3 and FIG.
Block showing the detailed configuration of the handset 4 and the handset 4
FIG. Referring to FIG.
The wireless carrier signal arriving via the wireless channel of
Antenna 1 is received and then duplexer (DUP) 2
1 to a receiving circuit (RX) 22. This receiving
In the transmission circuit 22, the received carrier signal is
Reception local oscillation signal output from the
It is mixed and frequency converted to an intermediate frequency signal. So
Then, the received intermediate frequency signal is decoded by the A / D converter 25.
Digital demodulation circuit after conversion to digital signal
(DEM) 26. Digital demodulation circuit 26
In the above, the received intermediate frequency signal is digitally demodulated and
Digital reception baseband signal,
Insert into own slot according to Split Multiple Access (TDMA) method
A process for separating and extracting the signal is performed. this
The digital reception baseband signal separated and extracted
Error correction code decoding circuit (CH-COD) 27
Signal processing, followed by switching circuits 36 and 37 to be described later.
Input to the speech codec (SP-COD) 28 via
Is done. In the speech codec 28, the error correction
Digital reception base output from code decoding circuit 27
Audio decoding processing of the band signal is performed. The output from the speech codec 28
The digital reception signal is an echo canceller (EC-CA
N) After passing through 29, input to PCM codec 30
Here, it is converted to an analog reception signal,
It is. And the handset call mode is set
In this state, one of the analog reception signals
After passing through the width device 31, the handset is passed through the cradle 3.
To 4. In handset 4, volume 4f
The level of the analog audio signal was adjusted at
It is output from the handset speaker 4a. Against this
When the handsfree call mode is set,
The other of the two branched analog reception signals is volume 3
After the volume is adjusted in step 2, it is amplified by the receiving amplifier 33,
After that, it is output to the cradle 3. And this Anna
The log receiving signal is a hands-free signal provided in cradle 3.
The voice is output from the speaker 3a. On the other hand, the handset microphone 4b
Handset transmission signal of the user
Is input to the switching circuit 3e of the cradle 3. This cut
The conversion circuit 3e includes a hands-free micro cradle 3.
Hands-free transmission picked up by phone 3b
The number is also entered. Changeover switch 3e is cradle control
In the handset call mode, the circuit 3c is used.
Switching to select and output the default set transmission signal.
Control in the hands-free call mode.
Switching is controlled to selectively output the
You. Make sure that you are in
Is in hands-free call mode.
Cradle control circuit 3 according to the state of the
c. That is, the handset 4
Lifted from the hook 3
If 3d is off-hook,
Is determined to be in a call-to-call state. Handset 4
Is placed in the cradle 3 and the hook switch 3
If d is on-hook, hands-free
-It is determined that it is in a call state. Then, the output from the changeover switch 3e is output.
The transmitted transmission signal is supplied to the switch 3f and the buffer amplifier 3
g, and then input to the wireless unit 2. Nothing
In the line unit 2, the transmission voice signal is first converted to PCM.
After being converted to a digital signal by codec 30,
Input to the canceller 29. This echo canceller
In step 29, an acoustic echo component is captured from the transmission voice signal.
Digital signal processing for canceling is performed. So
And the digit output from the echo canceller 29.
The talk transmission signal is input to the speech codec 28. This
In the speech codec 28, the digital transmission signal
Is performed. And this encoded
The digital transmission signal is supplied to switching circuits 38 and 39 described later.
The signal is input to the error correction code decoding circuit 27 via the input terminal. This mistake
The correction code decoding circuit 27 converts the digital transmission signal into
Error correction coding processing is performed for the
The transmitted digital transmission signal is converted to a digital modulation circuit (MO).
D) 34 is input. In the digital modulation circuit 34, the encoding
The digital transmission signal is used as a modulation signal to
Digital modulation of the carrier wave according to the wave number is performed. De
As a digital modulation method, for example, π / 4 shift DQP
SK (π / 4 shifted, differentially encoded quadra
ture phase shift keying). This de
The modulated wave signal output from the digital modulation circuit 34 is
Transmitted after being converted to an analog signal by the D / A converter 35
The signal is input to the circuit (TX) 23. In this transmission circuit 23
Indicates that the modulated wave signal is output from the frequency synthesizer 24.
Mixed with the transmitted local oscillation signal
Band, and further reaches a predetermined transmission power level.
So that the power is amplified. And this transmission circuit 23
The radio carrier signal output from the
Power is supplied to the antenna 1 through the
Sent to base stations that do not. The error correction code of the radio unit 2
Received signal between decoding circuit 27 and speech codec 28
Switching circuits 36 and 37, respectively,
And switching circuits 38 and 39 are interposed. these
The switching circuits 36 and 37 and the switching circuits 38 and 39
When you register a dial or make a voice call,
When registering a message, answering a message, or playing a message
The switching control signal output from the wireless unit control unit 2c.
It switches appropriately according to the number. In the digital signal processing circuit 2b,
A voice recognition circuit 51 is provided. This speech recognition circuit
Reference numeral 51 denotes a digital signal output from the PCM codec 30.
Audio signal is input. In the voice recognition circuit 51, the voice
C at the time of dial registration and voice dialing
Destination name input from the call-free microphone 3b
Processing for voice recognition of voice signal representing
The recognition data is input to the wireless unit control unit 2c.
It is. The wireless unit control unit 2c is a microprocessor
It has a processor (CPU) 41. This micropro
The processor 42 has a ROM 42 and a RAM via a bus 45.
43 and input / output port (I / O) 44 are connected
Have been. The ROM 42 contains necessary information for wireless communication.
All control programs and some control data are
It is remembered. The RAM 43 is required for wireless communication.
Necessary remaining control data and the like are stored. The CPU 41 is stored in the ROM 42.
Control program and control data and RAM
Wireless communication in accordance with the control data stored in
And executes various control processes related to. In this control process
In addition to the normal incoming and outgoing calls and call control,
Dial registration control, voice dialing control, and answering machine
Message registration control, absence response control, and message
Playback control is included. Next, the digital device constructed as described above
The operation of the mobile telephone device is controlled by the wireless unit control unit 2c.
It will be described according to the procedure. In standby mode, the wireless unit
The controller 2c operates as shown in the flowchart of FIG.
The operation monitoring and the outgoing call are respectively
Monitoring for incoming calls and incoming calls.
Registration key and message at 14c, 14d and 14e respectively
Key and mode key operation monitoring
You. In the initial state before the mode key is operated,
Home mode is set. In this state, it is temporarily assumed that the voice dialing call is registered.
Assume that the user presses the registration key for recording. To be so
Then, the control section 2c shifts to step 14g, where the current
Determines whether the current mode is in absence mode or home mode
Now, because it is in home mode, dialing registration control
Is executed as follows. That is, the control unit 2c firstly switches the switching circuit 39
From the error correction code decoding circuit 27 side to the control unit 2c side.
Change. In this state, the caller
When voice is input from the hands-free microphone 3b,
The audio signal is digitally converted by the PCM codec 30.
After being converted into a signal, the
You. In the voice recognition circuit 51, the digital voice signal
The voice recognition processing of the signal is performed, and the recognition data is
2c. In addition, the PCM codec 30
The digital audio signal output from the
After passing through 29, it is input to the speech codec 28,
It is encoded here. And this encoded digital sound
The voice signal is input to the control unit 2c via the switching circuit 39.
You. The control section 14c controls the switching of the switching circuit 39.
When the control is completed, the speech recognition data and the encoded
Monitor the input of the digital audio signal. And these
Speech recognition data and coded digital speech signal input
Then, as shown in the flowchart of FIG.
In step 5a, the voice recognition data is fetched, and in step 5b,
The data is temporarily stored in the RAM 43, and in step 5c
Take in the coded digital audio signal and convert this signal
In step 5d, the information is temporarily stored in the RAM 43. And this
These speech recognition data and coded digital speech signals
Are written into the RAM 2d in association with each other. Subsequently, the speech phase in which the user inputs the voice
Enter the telephone number of the hand using the dial keys of the handset 4.
Once entered, this phone number data is transferred to the handset control
4c to the wireless unit controller 2c. Wireless
In step 5e, the knit control unit 2c sets the telephone number data
When the input is detected, the telephone number data is retrieved in step 5f.
After that, in step 5g, this telephone number data is
RAM 2d in association with the voice recognition data of the called party name
To memorize. Thus, the diagram for the desired call partner
File information is registered. Now, as described above, the dial information of the other party
Is registered, and the user calls this registered
To make a call to the
Suppose that the caller's name is spoken into the black phone 3b.
You. Then, this audio signal is transmitted to the PCM codec 30.
After being converted into a digital signal by the voice recognition circuit 51
It is input and recognized by the voice recognition circuit 51,
The data is input to the control unit 2c. The control unit 2c is configured as shown in FIG.
As shown in the flowchart of FIG.
The recognition data is fetched and registered in the RAM 2d.
Check with voice recognition data. And both data match
Call request to the registered call partner
And switches the switching circuit 37 to the control unit 2c side.
After that, the process proceeds to step 6c. In this step 6c
In this case, the control unit 2c recognizes the matching
A mark representing the name of the other party stored corresponding to the data
Read out the encoded digital audio signal, and
The signal is supplied to the audio codec 28 via Because of this,
The encoded digital audio signal is output by an audio codec 28.
Decoded by the PCM codec 30
After being adjusted, the volume 32 and the receiving amplifier 33
And supplied to the hands-free speaker 3a.
The voice is output from the speaker 3a. Check the name of the other party
The voice is loudspeaked and output. The user hears this confirmation sound
As a result, the voice dial call request
It can be confirmed whether or not it was properly received. It should be noted that both data are obtained by collation of the recognition data.
If it is determined that the data does not match, the control unit 2c sets the status.
In step 6d, the mismatch message stored in the RAM 2d is stored in advance.
Read the encoded digital audio signal of the
At step 6e through the switching circuit 37.
Supply to the road 27. For this reason, the hands-free speaker 3
The non-matching message is output by voice from a. use
From this message, the caller
Unregistered or the caller's name
You can know that it was not entered. By the above-mentioned confirmation voice of the call partner name,
The entered voice dial call request was accepted correctly
Then, the user is provided on the handset 4
The send key (SEND key). Do so
And the control unit 2c shifts from step 6f to step 6g.
Then, here, the RAM 2d corresponds to the above-mentioned call partner name.
Read out the phone number data, and based on this phone number data
Then, dial transmission control is executed in step 6h. So
When a call link is established with the other party,
After that, it shifts to call control. Note that switching during this call control
The paths 36 to 39 are connected to the error correction code decoding circuit 27 and the voice code.
FIG. 2 shows a state in which the circuit is directly connected to the decoding circuit 28.
Are set as shown in FIG. Next, the answering operation will be described. Destination
When registering a response message without
To set the mode of the device to the absence mode,
The registration key is pressed in this state. Then, the control unit 2c
Moves from step 14c to step 14g and
Is the mode currently set in Answering mode or Home mode
Is determined. It is currently set to absence mode
Therefore, the control unit 2c thereafter sets the response message registration control next.
Execute as follows. That is, the control unit 2c sends the response message
In the registration mode, the switching circuit 39 is switched to the control unit 2c side.
After the replacement, first, as shown in the flowchart of FIG.
Step 7a waits for the input of the response message. This state
In this state, the user sets the hands-free microphone 3b or
Response message from headset microphone 4b
When input, the voice signal of this response message is
After being converted into a digital audio signal by the deck 30,
After passing through the echo canceller 29, the speech codec 28
And is encoded here. And its encoding
The digital audio signal is supplied to the control unit 2 via the switching circuit 39.
c. The control unit 2c determines the code of the response message
In step 7b,
In step 7c, the signal is registered in the response message in the RAM 2d.
Record in the recording area. And in step 7d
Monitors the registration end operation and waits for the end operation.
Return to. In this state, an incoming call arrives from the base station.
Suppose. Then, the control unit 2c determines whether or not step 14b
Then, the process proceeds to step 14f, where the currently set mode is set.
To determine if the mode is in absence mode or home mode
You. And suppose that the home mode was set.
Then, the control unit 2c executes normal incoming call control. On the other hand, it is assumed that the absence mode has been set.
The control unit 2c thereafter executes the absence response control as follows.
You. That is, the control unit 2c first switches the switching circuit 38 to the control unit.
After switching to the 2c side, shown in the flowchart of FIG.
In step 8a, an automatic incoming call response is made and the calling side
A call link is formed between the terminal and the terminal. And control unit 2
c is the response message from the RAM 2d in step 8b.
Read the encoded digital audio signal, and
The digital audio signal is subjected to error correction code decoding via the switching circuit 38.
Signal 27. Therefore, the error correction code decoding
On path 27, the error for the coded digital audio signal
Correction encoding is performed, and the output signal is digitally transformed.
The digital modulation circuit
34 is modulated by the coded digital audio signal.
The output carrier signal is output. And this carrier signal
Is converted into an analog signal by the D / A converter 35.
That is, the transmission circuit 23 converts the
That is, the signal is amplified to a predetermined transmission power level and transmitted from the antenna 1.
Be trusted. Therefore, the speaker of the calling terminal will receive the above response message.
A message is sent, and the message
You can know Sage. When the transmission of the response message is completed,
The control unit 2c switches the switching circuit 3 in preparation for the arrival of the message message.
6 is switched to the control unit 2c side, and then the steps 8d and 8d are performed.
And step 8e to monitor line disconnection and call
The arrival of these message messages is monitored repeatedly. In this state, a message is sent from the calling terminal.
Is coming. Then, the control unit 2c performs step
8e, to step 8f, where the error correcting code
The message message is sent from the decoding circuit 27 via the switching circuit 36.
Coded digital audio signal, and this signal
In the message area of RAM2d in step 8g
Write. And the writing of this message is finished.
And the line is disconnected due to the end of the caller,
The control unit 2c shifts from step 8d to step 8h.
Here, the call termination control is performed, and the process returns to the standby state. Also, for example, a user who has returned home
When the key is pressed, the control unit 2c determines this in step 14d.
After detecting the operation, the message message playback control is performed as follows.
To run. That is, the control unit 2c first operates the changeover switch
After switching 37 to the control unit 2c side, the flowchart of FIG.
As shown in the chart, a message is sent from the RAM 2d in step 9a.
Reads the encoded digital audio signal of the message and
Is transmitted through the switching circuit 37 in step 9b.
The signal is input to the codec 28. Therefore, the above encoded data
The digital audio signal is decoded by the audio codec 28.
After that, the signal is returned to the analog signal by the PCM codec 30,
Then, via the volume 32 and the receiving amplifier 33
The voice is output from the hands-free speaker 3a. But
The user hears the message
You can know the message content of the caller. Note that the message
User off-hooks handset during message playback
If so, the message is the handset speaker 4a
Output from As described above, in this embodiment, the audio
When registering a phone call, the
The voice signal representing the name of the correspondent is converted by the voice codec 28
Speech recognition obtained by the speech recognition circuit 51 after encoding
Stored in the external RAM 2d of the control unit 2c together with the knowledge data
Then, when the user makes a voice dial call in this state,
The corresponding encoded digital audio signal from the RAM 2d
Is read and input to a speech codec 28, which
After decoding in step 28, the confirmation sound is output from the speaker.
I am trying to. Therefore, in this embodiment, the audio diagram
The confirmation voice signal for outgoing
After being encoded in the path 28, the working R
This is stored in the RAM 2d, which is one of the AMs.
For this reason, registration and registration of voice signals representing
Provide a dedicated recording and playback integrated circuit for playback and playback output
There is no need. Therefore, it is simple and compact and consumes power.
With voice dialing function
An apparatus can be provided. In this embodiment, the response for answering
After the message is encoded by the speech codec 28,
AM2d, and when an incoming call arrives in this state,
Is the encoded digit of the response message from the RAM 2d.
Tal audio signal is read and decoded by an error correction code decoding circuit.
27 and transmitted. In addition, this response
Message message coming from caller after sending message
Coded digital audio signal without decoding
When the message is operated, stored in the RAM 2d
The encoded digit of the message message is read from the RAM 2d.
Read out the audio signal and decode it with the audio codec 28
After that, it is output from the speaker. Therefore, in this embodiment, the response message
After the speech is encoded, it is stored in the RAM 2d.
Message messages are encoded without being decoded
The data is stored in the RAM 2d as it is. Therefore, the response message
For storage of message and message playback
There is no need to provide a dedicated recording and playback integrated circuit.
By using a simple and small circuit with low power consumption
An answering machine function can be realized. The present invention is not limited to the above embodiment.
Not. For example, the present invention relates to a digital mobile phone and
It may be applied to digital cordless telephones,
The configuration of the device and the control procedures and control contents of each control means
Various modifications may be made without departing from the spirit of the present invention.
Can be implemented. As described in detail above, in the present invention, the voice recognition
The state in which the first mode for registering the dial is set
A voice representing the name of the caller is input to the voice input means
Is encoded, it is coded according to the input audio.
Digital voice signal according to the voice input.
Associated with the speech recognition data output from the means
It is stored in the storage means. On the other hand, the second mode for communicating
With the mode set, the caller
When a voice representing a name is input, the input
The calling party whose voice recognition data is stored in the storage means.
The name is compared with the voice recognition data, and as a result of this
Voice recognition in which the recognized voice recognition data is stored
If the data matches, the stored speech recognition
Storing the encoded digital audio signal corresponding to the data;
Means, and supplies it to the speech codec.
A voice corresponding to the encoded digital voice signal of
Output from the output means. Therefore, according to the present invention, a large turn
Voice dial registration and voice without adding a new route
Recording and playback of voice signals for dialing
To increase the recognition rate of voice dialing
To further reduce the size and weight of the equipment and reduce power consumption
To provide a digital radio telephone device capable of
it can.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing a schematic configuration of a digital car telephone device according to one embodiment of the present invention. FIG. 2 is a circuit block diagram showing a configuration of a wireless unit of the digital car telephone device shown in FIG. FIG. 3 is a circuit block diagram showing a configuration of a cradle and a handset of the digital car telephone device shown in FIG. FIG. 4 is a flowchart illustrating a control procedure of standby control by the wireless unit control unit illustrated in FIG. 2 and control contents thereof; 5 is a flowchart showing a control procedure of dial transmission registration control by the wireless unit control unit shown in FIG. 2 and the control contents. FIG. 6 is a flowchart showing a control procedure of transmission control by the wireless unit control unit shown in FIG. 2 and the contents of the control; FIG. 7 is a flowchart illustrating a control procedure of response message registration control by the wireless unit control unit illustrated in FIG. 2 and control contents thereof; FIG. 8 is a flowchart showing a control procedure and a control content of an answering answer control by the wireless unit control unit shown in FIG. 2; 9 is a flowchart showing a control procedure of message message reproduction control by the wireless unit control unit shown in FIG. 2 and the control contents. FIG. 10 is a schematic configuration diagram showing an example of a digital cellular radio telephone system. [Description of Signs] 1 ... Antenna 2 ... Wireless unit 2a ... Wireless circuit unit 2b ... Digital signal processing circuit unit 2c ... Wireless unit control unit 2d ... RAM 2e ... Power supply circuit 3 ... Cradle 3a ... Hands-free speaker 3b ... Hands-free microphone 3c Cradle control circuit 3d Hook switch 4 Handset 4a Handset speaker 4b Handset microphone 4c Handset control circuit 4d Key input unit 4e Display 4f Volume 21 Antenna sharing device 22 Receiving circuit 23 Transmission circuit 24 frequency synthesizer 25 A / D converter 26 digital demodulation circuit 27 error correction code decoding circuit 28 voice code decoding circuit 29 echo canceller 30 PCM codecs 31, 33 reception amplifier 32 volume 34 digital modulation Circuit 35 ... / A converters 36 to 39 ... switching circuit 41 ... CPU 42 ... ROM 43 ... RAM 44 ... input-output port 45 ... Bus 51 ... Voice recognition circuit

Continuation of the front page (51) Int.Cl. ⁷ identification code FI G10L 15/22 H04B 7/26 109K H04M 1/00 G10L 3/00 551A 1/27 561D H04Q 7/38 521C R (72) Inventor Hiroshi Sato 3-1, 1-1 Asahigaoka, Hino-shi, Tokyo In the Toshiba Hino Factory (72) Inventor Takaaki Ishii 1-3-1 Asahigaoka, Hino-shi, Tokyo In the Toshiba Hino Factory (72) Inventor Masataka Yamashita Tokyo 3-21, Asahigaoka, Hino City, Toshiba Communication Technology Co., Ltd. (56) References JP-A-4-355547 (JP, A) JP-A-4-361454 (JP, A) JP-A-2-178698 (JP) (A) JP-A-5-103074 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) H04M 1/00 H04M 1/24-1/82 H04B ⁷ /24-7/26 H04Q 7/00-7/38 G10L 3/00

Claims (1)

(57) [Claim 1] A voice input from a voice input means is converted into a digital voice signal and then encoded. The encoded digital voice signal is modulated, and the modulated code is modulated. After receiving the coded digital voice signal, it demodulates the coded digital voice signal, decodes the coded digital voice signal to reproduce the digital voice signal, and outputs voice corresponding to the digital voice signal from voice output means. A digital wireless telephone device for outputting, a storage means for storing an encoded digital voice signal, a voice recognition means for voice-recognizing a digital voice signal and outputting the recognized data, and a first voice register for registering a voice recognition dial. When a voice representing the name of the caller is input to the voice input means in a state where the mode is set, Voice dial registration control means for storing an encoded digital voice signal in response to the input voice in the storage means in association with voice recognition data output from the voice recognition means in response to the voice input; When a voice representing a caller name is input from the voice input means in a state where the second mode for performing communication is set, the caller name stored in the storage means is stored as recognition data of the input voice. Collating means for collating with the voice recognition data of the above. If the result of the collation by the collating means is that the input speech recognition data matches the stored speech recognition data, the stored speech recognition data An encoded digital audio signal corresponding to the encoded digital audio signal is read out from the storage means and supplied to the audio codec means. A digital radio telephone device, comprising: dial confirmation control means for outputting a voice from the voice output means.