JP3103401B2 - Calling device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a calling device used for a mobile communication device (car telephone) or the like.

[0002]

2. Description of the Related Art As the number of telephone subscribers increases, the number of telephone numbers increases, and it is a great burden for users that the user remembers the telephone number of the other party. Some speed dials, etc., call the other party's phone number with a single press of a button.However, the user makes a note of the correspondence between the registered number and the other party, so that the user can make a note at the time of calling. It was necessary to refer to. Further, a user speaks the name of a partner who wants to make a call, recognizes the uttered voice by voice, and calls the partner based on the result of the voice recognition.

FIG. 4 is a block diagram showing the configuration of a conventional radio telephone apparatus. FIG. 5 is a block diagram showing a speech recognition circuit 46 shown in FIG.
0 is a detailed block diagram of FIG.

As shown in FIG. 1, the wireless telephone device includes an audio signal processing unit 100, a transmission system 200, and a reception system 300.
A control unit 400 for controlling the transmission system 200 and the reception system 300; and a PLL synthesizer 500 for supplying a local oscillation high-frequency signal to the transmission system 200 and the reception system 300
, An antenna 600, and a duplexer 700.

[0005] The audio signal processing unit 100 includes an audio circuit 101 for performing processing such as amplification and band limitation on the audio signal,
A microphone 102 converts a user's voice into an electric signal, and a speaker 103 converts the electric signal into a sound wave and outputs the sound wave.

[0006] The transmission system 200 includes a modulator 201 for modulating a carrier with an audio signal from the audio circuit 101, and a modulator 2.
And a transmission high-frequency circuit 202 for converting the frequency of the high-frequency signal output from 01 to a predetermined transmission frequency and amplifying the power of the signal.

The receiving system 300 selects a band of a high-frequency signal to be received, amplifies the high-frequency signal, mixes the received signal with the high-frequency signal from the PLL synthesizer 400 and converts the frequency, and a receiving high-frequency circuit 301. And a demodulator 302 for demodulating the high frequency signal from

The control section 400 includes a central processing circuit 410 for controlling the entire operation, and a RAM 4 for storing programs, data, and the like for operating the central processing circuit 410.
20, an input / output interface 430 for interfacing with the central processing circuit 410, a keyboard 440 for the user to input information via the input / output interface 430, and a voice recognition circuit 450 for recognizing the input voice. Is provided.

The operation of the above-structured radio telephone apparatus will be briefly described.

First, the receiving operation will be described.

A high frequency signal is induced in antenna 600 by a radio wave transmitted from a base station or the like. This high-frequency signal is received by the reception high-frequency circuit 301 through the duplexer 700.
Where the high-frequency amplification and the PLL synthesizer 5
The signal is mixed with the local oscillation signal output from 00, converted to an intermediate frequency, band-limited, and FM demodulated by the demodulator 302. Thereafter, the demodulated signal is output to the audio circuit 101.
Performs the expansion processing, band limitation, and amplification, and outputs sound from the speaker 103.

Next, the transmission operation will be described.

A voice from a user is converted into an electric signal by a microphone 102, amplified and compressed in an audio circuit 101, and a high frequency signal is FM-modulated by the modulator 201 in the modulator 201. The modulated wave is mixed with a local oscillation signal output from the PLL synthesizer 500 in the transmission high-frequency circuit 202, converted into a desired transmission frequency, and then subjected to high-frequency power amplification. The high-frequency power-amplified signal is transmitted through a duplexer 700 to an antenna 600.
And is radiated into the air as radio waves.

Next, registration of the name of the other party to make a call will be described.

When the keyboard 440 is operated to set the mode to the name registration mode, a command for the registration mode is issued from the central processing circuit 410 through the input / output interface 430 and input to the speech recognition circuit 460 to set the mode to the name registration mode. Is done. When the user speaks a name to the microphone 102, the sound signal is changed to an electric signal, and the sound circuit 101
, And the voice is recognized by the voice recognition circuit 460. In the voice recognition circuit 460, the high-pass filter 461 removes a signal component below a predetermined frequency,
The signal is attenuated by the attenuator 462 and the signal level is matched. The speech is recognized by the speech recognition LSI 463, and the recognition data is held in the speech recognition RAM 464. In this way, the names are sequentially registered. On the other hand, a signal passed from the microphone 102 through the audio circuit 101 and the high-pass filter 461 is subjected to A / D conversion by the low-pass filter 465, subjected to A / D conversion by the audio recording / reproducing LSI 466, and converted into digital data for recording and reproduction.
AM467.

Next, a description will be given of a user setting mode for setting who uses two or more users.

In general, the characteristics of a user's voice used to improve the recognition rate of voice recognition are held, and voice recognition is performed using this data. Therefore, when speech recognition is used for a device used by a plurality of users, it is necessary to input to the device who uses the device.

The setting of the user is made by setting the keyboard 440 by the user.

The telephone number corresponding to the name of the other party is stored in the RAM 420 under the control of the central processing circuit 410 via the input / output interface 430 when the telephone number is input through the keyboard 440.

Next, the operation for making a call will be described.

When the user sets the recognition mode from the keyboard 440, the central processing circuit 410 causes the RA for voice recognition to start.
M464 is set to the reading state. Then, when the user speaks the name of the other party who wants to call the microphone 102, the voice is converted into an electric signal. The voice signal is processed by the voice circuit 101, the high-pass filter 461, and the attenuator 462, and is sent to the voice recognition LSI 463. This signal is the speech recognition L
In the SI 463, the data is compared with the voice data of the registered name stored in the voice recognition RAM 464, and when the voice data is recognized, the recognition data is sent to the central processing circuit 410. Then, data corresponding to the recognition data is transferred to the voice recording / reproducing LSI 466, and the voice recording / reproducing RAM 46 is transferred.
7 is read out, D / A converted to an audio signal, amplified by the audio circuit 101, and amplified by the speaker 10.
At 3, an acoustic signal is output, and a name for confirmation is output.

After a few seconds, a call is made to the number corresponding to the name recognized by voice in accordance with the instruction of the central processing circuit 410.

FIG. 6 is a flowchart showing the operation of the above-described voice recognition call.

First, user setting for inputting data indicating which user uses this wireless telephone device is performed (step S601). Thereafter, the voice recognition mode is set (step S602), and the name of the other party who wants to make a call is uttered (step S603). Voice recognition LSI463
If the voice recognition is not performed correctly (step S604), a notification sound is generated by the voice circuit 101 under the control of the central processing circuit 410 and output from the speaker 103. Then, the system enters a standby state until a key input is made (step S606). When any key is input, the process returns to step S603, and the name of the other party who wants to make a call is spoken again. On the other hand, the uttered voice is the voice recognition L
If it is correctly recognized by the SI 463 (step S604), the telephone number is displayed on a display device such as an LCD, and the registered voice is output from the speaker 103 for confirmation to the user (step S60).
7). If an arbitrary key is applied within a certain period of time (step S608), it is determined that there is an error in voice recognition, the process returns to step S603, and the name is uttered again. If there is no key input within a predetermined time in step S608, it is determined that voice recognition has been correctly performed, and a call is made with a telephone number corresponding to the voice-recognized name (step S609). (Step S6
10).

In the above-described speech recognition, for example, LS of Toshiba
I, T6658A and the like. In this case, time, frequency, and level vectors are obtained as parameters for analyzing one voice. For example, if you divide time into 16, frequency into 4, and level into 4,
One voice is represented by information of 16 × 4 × 4 = 256 bits. Therefore, when used by two users, 2 × 10
(10 registered persons) × 256 = 5120 bits of RAM is required. Then, the vector closest to the vector stored as the recognition is selected.

With the above configuration, the speech analysis recognition rate is poor, and is about 70 to 80%. In particular, the voice recognition rate is further degraded because it is greatly affected by the noise used in the vehicle. In addition, since a recognition LSI and a RAM are required as hardware, there is a problem that the cost of equipment is increased.

[0027]

As described above, the correct answer rate of voice recognition cannot be said to be sufficient in the voice recognition calling apparatus used in the conventional telephone apparatus and the like. Has a problem that the correct answer rate is further reduced due to ambient noise, and the device does not operate normally. Further, since an LSI and a RAM for voice recognition are required, there is a problem that the cost of equipment is increased.

The present invention has been made in order to solve these problems, and an object of the present invention is to provide a calling apparatus capable of easily making a call to a plurality of parties while keeping costs low. I do.

[0029]

In order to achieve the above-mentioned object, a first aspect of the present invention is to store name data of a call destination and data of a call number corresponding to the name data in association with each other. Data storage means, output means for sequentially outputting names corresponding to name data stored in the data storage means, user instruction input means for inputting instructions from a user, and instructions from the user instruction input means A calling unit for selecting a name output from the output unit based on an input timing and calling a calling number corresponding to the name. In the invention of one aspect, the output means is a calling device that outputs the name stored in the data storage means as an audio signal, and the third invention is, in the first invention, the output means, Data storage A fourth aspect of the present invention is the calling apparatus according to any one of the first to third aspects, wherein the user instruction input means is configured to display the name stored in a row by a voice uttered by the user. This is a calling device that receives a call.

[0030]

In the calling apparatus of the present invention, the registered name is
The output is sequentially performed, and one of them is selected according to an instruction from the user. Then, a call is made to the number corresponding to this name.

Therefore, it is possible to easily make a call to a plurality of parties with a simple configuration.

[0032]

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

FIG. 1 is a block diagram showing the configuration of an embodiment in which the calling device of the present invention is applied to a radio telephone device.

As shown in FIG. 1, the wireless telephone device includes an audio signal processing unit 100, a transmission system 200, and a reception system 300.
A control unit 400 for controlling the transmission system 200 and the reception system 300; and a PLL synthesizer 500 for supplying a local oscillation high-frequency signal to the transmission system 200 and the reception system 300
, An antenna 600, and a duplexer 700.

The audio signal processing unit 100 includes an audio circuit 101 for performing processing such as amplification and band limitation on the audio signal,
A microphone 102 converts a user's voice into an electric signal, and a speaker 103 converts the electric signal into a sound wave and outputs the sound wave.

The transmission system 200 includes a modulator 201 for modulating a carrier with an audio signal from the audio circuit 101, and a modulator 2
And a transmission high-frequency circuit 202 for converting the frequency of the high-frequency signal output from 01 to a predetermined transmission frequency and amplifying the power of the signal.

The receiving system 300 selects a band of a high-frequency signal to be received, amplifies the high-frequency signal, mixes the received signal with the high-frequency signal from the PLL synthesizer 400 and converts the frequency, and a receiving high-frequency circuit 301. And a demodulator 302 for demodulating the high frequency signal from

The control unit 400 includes a central processing circuit 401 for controlling the entire operation, and a RAM 4 for storing programs, data, and the like for operating the central processing circuit 401.
02, an input / output interface 403 for externally interfacing with the central processing circuit 401, a keyboard 404 for a user to input information via the input / output interface 403, and a call destination identification circuit 405 for identifying a call destination. Is provided.

The operation of the radio telephone having the above-described configuration will be briefly described.

First, the receiving operation will be described.

High-frequency signals are induced in antenna 600 by radio waves transmitted from a base station or the like. This high-frequency signal is received by the reception high-frequency circuit 301 through the duplexer 700.
Where the high-frequency amplification and the PLL synthesizer 5
The signal is mixed with the local oscillation signal output from 00, converted to an intermediate frequency, band-limited, and FM demodulated by the demodulator 302. Thereafter, the demodulated signal is output to the audio circuit 101.
Performs the expansion processing, band limitation, and amplification, and outputs sound from the speaker 103.

Next, the transmission operation will be described.

The voice from the user is converted into an electric signal by the microphone 102, amplified and compressed by the audio circuit 101, and the high frequency signal is FM-modulated by the modulator 201 by the electric signal. The modulated wave is mixed with a local oscillation signal output from the PLL synthesizer 500 in the transmission high-frequency circuit 202, converted into a desired transmission frequency, and then subjected to high-frequency power amplification. The high-frequency power-amplified signal is transmitted through a duplexer 700 to an antenna 600.
And is radiated into the air as radio waves.

Next, a description will be given of a call centered on the call destination identification circuit 450, which is a characteristic part of this embodiment.

FIG. 2 is a block diagram showing a detailed configuration of the call destination identification circuit 450.

In the figure, reference numeral 451 denotes a high-pass filter that passes only a band above a predetermined frequency, 452 denotes a low-pass filter that passes only a band below a predetermined frequency,
453 is a rectifier circuit, 454 is a time constant circuit composed of a resistor and a capacitor, 455 is a level determination circuit that determines whether or not the signal level is higher than a predetermined level, and 456 is A / D conversion / D / A conversion of audio. A voice recording / reproducing LSI 457 for recording / reproducing the data is a RAM for holding data recorded by the voice recording / reproducing LSI.

The operation of recording and registering the voice of the other party's name is the same as the conventional one, so that the description will be omitted and the calling operation will be described.

FIG. 3 is a flowchart showing the calling operation.

First, when the user presses the keyboard 440 to set the calling mode (step S301), the RA
The name registered in M457 is the voice recording / playback LSI4
The signal is D / A converted at 56, amplified by the audio circuit 101, and output from the speaker 103 (step S302). Then, when the user utters, for example, “YES” for a predetermined time (for example, one second), the voice signal is converted into an electric signal by the microphone 102, rectified by the rectifier circuit 453, and converted to a predetermined time constant by the time constant circuit 454. And the level determination circuit determines that the signal has been input (step 303). If no voice is issued from the user, the process returns to step 302, where the next name is stored in the RAM 45.
7 and D / A converted and output. Step 3
03, if it is determined that the user is producing a voice, the name is output again (step 30).
4) If the user utters a voice such as "NO" for a predetermined period of time (for example, one second) (step 305), the process returns to step 302 to read data of the next name from the RAM 457. On the other hand, if it is determined in step 305 that no sound is emitted for a predetermined time (for example, one second), a telephone number corresponding to the selected name is displayed on the LCD (step 306). Further, a call is made using this telephone number (step 307). That is, in the above-described operation, the names registered on the wireless telephone side are sequentially output from the speaker 103. Then, when the name of the person who wants to make a call is output, the user sets the microphone 1
02 and make a speech. Then, the central processing circuit 410 makes a call with the number corresponding to the selected name.

Various modifications are conceivable for inputting the name and number of the destination. For example, the input may be performed using a keyboard, a personal computer, or the like.

Further, the order may be changed according to the use frequency so that the name of the target party can be given as soon as possible. Also at this time, it is possible to put out the ones having a frequency equal to or higher than a certain frequency first according to the frequency, and to put out the ones having a frequency lower than a certain frequency later in a random order.

The voice from the user does not need to determine only the presence of voice, but may use voice recognition of a short voice such as "YES" or "NO".

As described above, in the above-described embodiment, a speech recognition LSI and a RAM are not required, a simple circuit can be used, and there is no erroneous recognition associated with speech recognition, so that a call destination can be accurately determined.

[0054]

As described above, in the calling apparatus of the present invention, the registered names are sequentially output, and one of them is selected according to the instruction from the user. Since a call is made to the number corresponding to this name, it is possible to easily make a call to a plurality of other parties with a simple configuration.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of an embodiment when a calling device of the present invention is applied to a wireless telephone device.

FIG. 2 is a block diagram showing a detailed configuration of a call destination identification circuit 450.

FIG. 3 is a flowchart showing a calling operation.

FIG. 4 is a block diagram illustrating a configuration of a conventional wireless telephone device.

FIG. 5 is a detailed block diagram of a speech recognition circuit 460.

FIG. 6 is a flowchart showing an operation of voice recognition calling.

[Explanation of symbols]

 REFERENCE SIGNS LIST 100 voice signal processing unit 101 voice circuit 102 microphone 400 control unit 401 central processing circuit 402 RAM 403 input / output interface 404 keyboard 450 call destination identification circuit 456 voice recording / playback LSI 457 RAM

──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Koichi Ito 3-1-1 Asahigaoka, Hino-shi, Tokyo Toshiba Corporation Hino Factory (56) References JP-A-2-194759 (JP, A) Hei 1-238254 (JP, A) JP-A-6-284177 (JP, A) Japanese Utility Model Hei 3-20566 (JP, U) (58) Fields studied (Int. Cl. ⁷ , DB name) H04M 1 / 27 H04M 1/274

Claims (1)

(57) [Claims] 1. A data storage means for storing name data of a call destination and data of a call number corresponding to the name data in association with each other, and a user instruction input for inputting a voice instruction from a user.
Means corresponding to the name data stored in the data storage means
The names are sequentially output and the user input
When the first voice is input to the column, the first voice is input
Output means for re-outputting the first name output immediately before
And a predetermined period after the output of the first name by the output means.
A second voice is input to the user instruction input means within a
If not, place a call to the calling number corresponding to the first name
Calling means , wherein the output means outputs the first name for a predetermined period after the re-output of the first name.
The second voice is input to the user instruction input means within
The next name data corresponding to the first name
A calling device for outputting a name corresponding to name data .