JPS63299556A - Data erasion system for radio telephone system - Google Patents

Abstract

PURPOSE:To effectively register the remote side to be called with a limited memory capacity by realizing the partial erasion of the contents stored in a number memory means. CONSTITUTION:A voice input means is provided together with a voice recognizing means 350a which recognizes the voices supplied to the voice input means, a number memory means 358 which stores the telephone numbers in response to the prescribed voices, and a transmission means which reads a telephone number corresponding to the voices recognized by the means 350a out of the means 358 and performs a calling action based on said telephone number. Thus the contents stored in the means 358 can be erased en bloc. As a result, it is possible to erase totally or partly the contents of the means 358 and to register the new contents instead in case the capacity of the means 358 has no margin when the remote side to be called is registered newly with recognition of voices.

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention (Field of Industrial Application) The present invention relates to a data erasing method in a wireless telephone device such as a car telephone device.

(Prior Art) In recent years, a so-called voice dialing function has been realized in which a car telephone device is provided with a voice recognition function and a call is made by uttering a voice without dialing.

By the way, in order to realize such a voice dialing function, a storage means for storing a telephone number corresponding to a predetermined voice is required. However, since such a storage means has a limited number of guests, there is a problem in that the number of parties to which calls can be made is limited.

(Problems to be Solved by the Invention) The present invention has been made based on the above-mentioned circumstances, and provides a data erasing method in a wireless telephone device that can effectively register a party to call with a limited storage capacity. is considered to be huge.

[Configuration of the Invention (Means for Solving Problems)] The data erasing method in the wireless telephone device of the present invention includes a voice input means, a voice recognition means for recognizing the voice input to the voice input means, and a predetermined method. a number storage means for storing a telephone number corresponding to the voice recognized by the voice recognition means; and a calling means for reading a telephone number corresponding to the voice recognized by the voice recognition means from the number storage means and making a call according to the telephone number. biased,
The present invention is characterized in that the contents stored in the number storage means can be erased all at once.

A second invention provides a voice input means, a voice recognition means for recognizing the voice input to the voice input means, a number storage means for storing a telephone number corresponding to the affirmative voice, and a voice recognition means for recognizing the voice by the voice recognition means. and a calling means that reads a telephone number corresponding to the voice received from the number storage means and makes a call according to the telephone number, thereby making it possible to partially erase the contents stored in the number storage means. It is characterized by

(Function) In the data erasing method of the wireless telephone device of the present invention, when it is desired to register a new party to call using voice recognition and there is not enough capacity in the number storage means, the contents can be erased all at once or partially. and a new registration can be made instead.

(Example) Hereinafter, details of an example of the present invention will be described based on the drawings.

FIG. 1 is a block diagram showing the configuration of a car telephone device according to an embodiment of the present invention.

The car phone device 100 shown in the figure includes an antenna 200,
For example, as shown in FIG. 2, the antenna 200 is attached to the outside of a car 500, and the radio device 300 is installed in the trunk 5 of the car.
The telephone fi 400 is mounted near the driver's seat 504 in the automobile 500.

The wireless unit 300 includes a wireless unit 310 that forms a line 600 and exchanges signals with a base station (not shown) via an antenna 200, and an audio/video unit that performs overall control of the entire device. The control unit 330, the voice dial unit 350 that performs voice recognition and voice synthesis, etc., the IDROM 370 in which ID numbers and telephone numbers are registered, and the power of the battery 506 (see Fig. 2 @) installed in the car are connected to the fuse 508. The main part of the device consists of a power supply section 390 that is inputted through the power source and supplied to each section of the device.

The telephone 61400 includes an audio/Wi control section 410 that performs overall control of the entire telephone 400 based on commands from the audio/control section 330, a key section 430 that performs predetermined key manual operations, and a display section that displays a predetermined display. 450, a switch section 470 for performing various switching operations, and an audio input/output section 490 for inputting and outputting audible sounds. Note that this telephone 400 has a telephone main body 400.
A part of the audio/control section 410 and a switch section 47 are located on the side of the main body 400a, which consists of
A hands-free microphone 4 is provided with a speaker 492 serving as an audio input/output unit 490 and is attached to, for example, a sun visor 510 near the driver's seat 504.
94 is connected. The handset 400b side includes a part of an audio/control unit 410, a key part 430, and a display unit 450, as well as a handset microphone 496 serving as an audio input/output unit 490 and a handset receiver 4.
98 is provided.

FIG. 3 is a block diagram showing the configuration of the above-mentioned radio device in further detail.

As shown in the figure, the radio section 310 includes a demodulator 312, a modulator 314, a power amplifier 316, a duplexer 318,
Demodulator 312 , consisting of a synthesizer 320
is a wireless line 600, an antenna 200, a duplexer 318
demodulates the received signal from the base station that is input via the
Note that this received signal includes an audible sound signal, a control signal, etc., and the 6 modulator 314 modulates the audible sound signal, control signal, etc. output from the audio/control section 330 into a transmission signal. Power amplifier 316 amplifies the transmission signal output from modulator 314. Note that the amplification factor in this power amplifier 316 can be changed to, for example, 8FBH. The duplexer 318 is a wireless line 600,
The received signal input via the antenna 200 is sent to the demodulator 3.
At the same time, a transmission signal input via a modulator 314 and a power amplifier 316 is sent to the antenna 200. Synthesizer 320 is a local oscillator for channel selection, and specifies the frequency to be demodulated by demodulator 312 and the frequency to be modulated by modulator 314. Note that there are approximately 666 channels specified by this synthesizer 320, for example.

The audio/control unit 330 includes a CPU 331, an oscillator/
Frequency divider 332, address decoder 333, ROM334
, RAM 335, radio section control section 336, audio section 3
37, control signal processing section 338, audio section control section 33
9. Digital interface 340, power supply controller 3
41, and an interrupt controller 342. Note that the reference numeral 343 in the figure is, for example, an 8-bit data bus,
344 is an address bus, and 345 is a control bus. The CPU 331 performs overall control of the entire audio/leg control section 330.The 9 oscillator/frequency divider 332 is a CPU.
In addition to supplying a clock to 331, this clock is frequency-divided and supplied to each part as a timing signal. The address decoder 333 outputs definitive operation signals to each section in response to command signals from the CPU 331. ROM334 is CP
Stores various programs necessary for the operation of U331. R
AM335 stores various data during processing by CPU331. The radio unit 11 control unit 336 controls the radio unit 310 based on instructions from the CPU 331. For example, the radio unit control unit 336 controls the frequency that the synthesizer 320 should specify,
Amplification factor to be amplified by power amplifier 316, modulator 314
Instructs the degree of modulation to be modulated, etc., and inputs an out-of-synchronization signal output from the synthesizer 320, an output detection signal output from the power amplifier 316, etc. as a measure to prevent malfunction, and transmits these to the CPO 331. The audio section 337 sends the control signal of the received signal demodulated by the demodulator 312 to the control signal processing section 338 and the audible sound signal to the voice dial section 350 and the telephone 400, and output from the control signal processing section 338. Control signals and telephone 4
00 and an audible sound signal output from the voice dial section 350 to the modulator 314. In addition, audio section 3
37 also has functions of waveform shaping of the control signal to be sent to the control signal processing section 338 and filtering of the control signal to be sent to the modulator 314. Control signal processing section 33
8 performs bit synchronization and frame synchronization with the Fi1m signal output from the audio section 337, captures the control data from the base station included in the control signal which is a serial signal as a parallel signal, and sends it to the base station. Control data as a parallel signal to be output is sent to the audio section 337 as an 11 control signal that is a serial signal.

The audio section control section 339 performs various controls on the audio section 337. For example, the audio section control section 339 transfers the received signal from the audio M337 to the control signal processing section 3.
38, switching control and control signal processing unit 338 that sends out to either the voice dial unit 350 or the telephone 400;
A digital interface 340 provides an interface between the wireless device 300 and the telephone 400, and performs switching control to input either the transmission signal output from the voice dial section 350 or the telephone fi 400 to the audio section 337. The power supply unit control unit 341 controls the power supply unit 39
For example, the power supply unit control unit 341 controls the power supply unit 390 to set the voltage supplied from the battery 506 to a predetermined voltage and supplies it to each unit.The 0 interrupt controller 342 controls the voltage from each unit. CP after receiving an interrupt command
Interrupts U331.

FIG. 4(a) is a block diagram showing in more detail the configuration of the voice dial section 350 shown in FIGS. 1 and 3. FIG.

As shown in the figure, the voice dial section 350 includes a voice recognition section 350a that performs voice recognition, a voice synthesis section 350b that performs voice synthesis, and a DTMF reception section 35 that receives DTMF signals.
It consists of 0c.

The voice recognition unit 350a has a balanced/unbalanced (B/
, U) Converter 351, bypass filter 352, amplifier 353, AGC circuit 354, attenuator 356, voice recognition L
SI357, RAM358, latch circuit 359.360
, gate circuits 361, 362, address decoder 363
It consists of

FIG. 4(b) is a circuit diagram showing a part of the structure of such a speech recognition section 350a in more detail. As shown in the figure, the B/U converter 351 includes an operational amplifier 0P351, resistors R351a, R351b, R351c, and R351.
d,, R351e, capacitor C3S1a, C351
b, a differential amplifier circuit composed of a reference voltage V refl. Here, in this car phone device 100,
Hands-free microphone 494, handset microphone 496
Immediately after each of the two sets of operational amplifiers OP 412a (421a), OP as shown in No. 411ffi (b)
412b (421b), resistor R412a (421a)
, R41211 (421b), R412C (421C)
, R412d (421d), and an unbalanced/balanced (υ/B) converter 4 consisting of a reference voltage V ref3.
12 (421) (see FIG. 8) are arranged. Therefore, the audio signal input from the hands-free microphone 494 or the handset microphone 496 is transmitted to the υ/B converter 4.
12 (421), the balance line 351a (412
b, 421b' is converted into a signal on the balance line 35
1a (412b, 421b>)
50a. Then, this voice recognition section 350a
The audio signal on the balance line 351a input to the
Unbalanced line 351b by B/U converter 351
After being converted into the above audio signal, it is used as an audio signal for the audio recognition section 350a. Therefore, the balance line 351a (412b,
421b) Common mode noise on the top, that is, the two al! The in-phase noise on the signal 3 is canceled and removed by the B/lJ converter 351. Therefore, it is possible to prevent malfunctions due to recognition errors caused by such noise and to improve the recognition rate. Bypass filter 352 is operational amplifier 0P3
52, resistor R352a, R352b, R352C,
Capacitor C352a, C352b, reference voltage V r
efl, cutoff frequency fc is 600H
z to remove low frequency components from the audio signal input to the audio recognition unit 350a. Usually car 50
The noise within 0 has many low frequency components, and the audio signals input from the hands-free microphone 494 and the handset microphone 496 contain these low frequency components as noise. Therefore, by performing speech recognition by removing low frequency components as described above, it is possible to prevent malfunctions due to recognition errors caused by noise and improve the recognition rate. Amplifier 353 consists of operational amplifier 0P353.1-transmission gate TG353, resistors R353a, R
Consisting of 353b, R353c, and R353d,
The audio signal from bypass filter 352 is amplified. This amplifier 353 is connected to the ffi of the audio/control section 330.
By control, when the hands-free microphone 494 is used as a voice input means in the electronic 1111400, the amplification factor is lowered compared to when the handsera I microphone 496 is used. This is audio/f! /1m section 330
The CPU 331 of the hook switch 4 detects on-hook or off-hook of the handsera) 400b, which will be described later.
For example, when the handset 400b is in an on-footer state, that is, when the hands-free microphone 494 is in use, this flag is set, and based on this flag, the transmission signal is sent from the CPU 331 via the digital interface 340 and the latch circuit 359 to the transmission game (TG 353). This is realized by inputting a predetermined #11 signal to the control side of the controller. However, when using the hands-free microphone 494, there is a greater amount of noise from the car 500 mixed in than when using the handset microphone 496, so by lowering the amplification factor when using the hands-free microphone 494, it is possible to reduce noise caused by noise. Malfunctions due to recognition errors can be prevented. The AGC circuit 354 is
Operational amplifier OP 354a, OP 354b, transistor Tr 354, resistor R354a, R354b,
It is composed of R354c, R354d, R354e, capacitors C354a, C354, C354c, diodes D354a, D354b, and reference voltage V ret2. The operational amplifier OP 354a calculates the difference between the audio signal amplified by the amplifier 353 and the reference voltage V ref2. And the diode D35 of this difference component
The rectified values by 4a, D 354b, capacitor C354a, etc. are sent to transistor Tr35 via a voltage follower circuit composed of operational amplifier OP35411.
4 is input to the base (i control) side. transistor T
r 354 controls the level of the audio signal input to the amplifier 353 based on the current input to the base.

That is, the amount of the audio signal amplified by the amplifier 353 is controlled by the AGC circuit 354, and an audio signal of a predetermined level is always output from the amplifier 353 regardless of the strength of the audio signal from the bypass filter 352. This makes it possible to expand the dynamic range and absorb individual differences in audio levels. That is, voice recognition can be performed at the individual's normal voice level without being affected by the strength of the voice level, and the recognition rate can be improved. The attenuator 356 includes an operational amplifier 0P356, a transmission gate TG356a, TG35611. T
G 356C5 resistor R356a, R356b, R3
56c, etc. The audio signal output from the amplifier 353 is a transmission game) T G 3
56a and the resistor R35θa are connected in series, and the second route is the transmission gate TG 356c and the resistor R35.
6c are connected in series to the operational amplifier 0P356.
The output of P356 becomes the audio signal input to the audio recognition LSI 357. Each transmission game) T G
35ea, TG356b, and TG356c have 0N10F from CPtJ331 of audio/control unit 330.
The F command signal is input via the latch circuit 359. And each transmission gate TG356a, TG
356b and TG 356c are each subjected to 0N10FF in response to these 0N10FF command signals. In this way, the attenuation rate of the attenuator 356 is controlled by the audio/control unit 330, and the audio signal attenuated according to this attenuation rate is voice recognized and input to the S engineer 357. This makes it possible to register the voice multiple times at different audio signal levels when registering the voice during the registration operation before voice dialing, which will be described later.

The voice recognition LSI 357 recognizes voice signals.

The RAM 358 stores data of words to be recognized by the speech recognition LSI 357.

FIG. 5 is a block diagram showing the configuration of the above-mentioned audio ratio 1 LSI 357 in further detail.

As shown in the figure, the audio ratio MLSI is determined by the two sets of amplifiers 3
57a, 357b, 4 sets of band pass filters 357C
1357d, 357e, 357f, multiplexer 357g-
A/D converter 357h, CPU357i, ROM357
J, RAM357k, CPTJ interface 357J
2. It consists of a RAM interface 357m.

The amplifiers 357a and 357b amplify input audio signals.The amplification factor of each amplifier 357a and 357b is, for example, 10 times. Bandpass filter 357c
, 357d, 357e, and 357f are band-pass filters 3 that filter the amplified audio signals.
The passband center frequencies of 57c, 357d, 357e, and 357f are, for example, 0.5 and 1k)tz, respectively.
It is said that there are 7 in 2 and 7 in 4. The multiplexer 357g includes each bandpass filter 357c, 357d, 357e, 3
57f is multiplexed. A/D converter 457h converts this multiplexed audio signal into a digital signal.

The CPU 357i is the overall control unit for this voice recognition LSI 357.
Perform 911Xl. The ROM 357j stores various programs necessary for the operation of the CPU 3571. RAM357
stores various data during control by the CPU 357i.

CPU interface 357β is audio/control unit 3
30. RAM interface 357m interfaces with RAM 358. At the time of speech recognition, the amplifiers 357a and 35
7b, band pass filter 357C5357d, 357
e, 357f, multiplexer 357g, A/D converter 357
The sampled, quantized, and encoded audio signal input via the RAM 357m is compared with word data to be recognized, which is input via the RAM interface 357m and registered in advance in the RAM 358. In addition, when registering a word to be recognized, the audio signal data to be registered, which has been sampled, quantized, and encoded in the same manner as described above, is R
The data is sent to the RAM 358 via the AM interface 357m and stored therein.

The speech synthesis section 350b includes a speech synthesis LSI 364 that generates predetermined speech based on data sent from the audio/control section 330, a latch circuit 365, and an amplifier 366 that amplifies the synthesized speech.

FIG. 6 shows block countries showing the configuration of the above-mentioned speech synthesis LSI 364 in further detail.

As shown in the figure, the speech synthesis LSI 364 includes a ROM 364a for indirectly specifying the address of the word to be generated using a predetermined code, a ROM 364b for storing speech parameters, and a parallel/serial converter for reading the speech parameters. A RAM 364d that stores parameters for 21 frames of 364C, a ROM 364e that decodes parameters non-linearly, a w open circuit 364f that interpolates parameters at predetermined time intervals, a register 364g that stores parameters and performs calculations, a voiced sound source 364h,
Silent sound source 364i, lattice digital filter 364J
, a D/A converter 364, and so on.

The DTMF receiving section 350C includes a bypass filter 367,
It consists of a DTMF receiver 368.

The DTMF receiver 368 receives the DTMF signal contained in the audio signal via the bypass filter 367 and recognizes it.

FIG. 7 is a diagram showing the configuration of the above-mentioned telephone R400 in further detail.

As shown in the figure, the telephone body 400a includes a B/U converter 411, a U/B converter 412, and amplifiers 413 and 414.
, an audio/control section 410 consisting of an echo canceller 415, and switches 416 and 417, and an audio input/output section 490 consisting of a hands-free microphone 494 and a speaker 492.
, hook switch 472, on/off switch 474
The main part thereof is composed of a switch section 470 consisting of.

The B/U converter 411 is the audio section 3 of the radio device 300.
37 via the balanced line 411a is converted into a signal on the unbalanced line 411b. The audio signal converted into a signal on this unbalanced line 411b is amplified by an amplifier 413 and sent to the speaker 4.
92. Note that the audio signal output from the audio section of the radio is a signal on an unbalanced line, and is converted into a signal on a balanced line by a U/B converter 337a placed immediately after the audio section. The U/B converter 412 is a hands-free microphone 49
The audio signal on the unbalanced line 412a input at 4 and amplified by the amplifier 414 is converted into a signal on the balanced line 412b. The audio signal converted into the signal on this balance line 412b is sent to the audio section 337 via the balance line 412b. In addition, wireless 11
Since the audio signal input to the audio section 337 of 300 is a signal on an unbalanced line, it is converted into a signal on an unbalanced line by a B/U converter 337b arranged immediately before this audio section 337. The echo canceller 415 connects the B/U converter 411 to the amplifier 4.
Attenuator 415a that attenuates the audio signal input to 13
, an attenuator control section 415b that controls the attenuation rate of this attenuator 415a, an attenuator 415C5 that attenuates the audio signal input from the amplifier 414 to the U/B converter 412, and an attenuator 415C5 that controls the attenuation rate of this attenuator 415c. Attenuator leg part 415d
, each attenuator #1611 based on the audio signal on each line.
It includes a control amount calculation section 415e that calculates the control amount of the sections 415b and 415d.

A switch 416 switches whether or not to output the audio signal from the B/U converter 411 from the speaker 492.
The switch 417 switches whether or not to send the audio signal from the hands-free microphone 494 to the audio section 337 of the wireless R300.

Note that these switches 416 and 417 are switched by wireless R.
This is performed based on the W control signal sent from the audio/control unit 330 of 300. Hook switch 472 detects when handset 400b is on-hook or off-hook. This detected signal is sent to the audio/control section 330 of the wireless section 300. On/off switch 4
74 is for switching on/off the entire car telephone device 100, and this switching signal is sent to the wireless section 300.
It is sent to the audio/control unit 330 of.

The handset 400b includes a w control section 418, an amplifier 41
9a, 419b, 419c, attenuator 420, U/B converter 421, audio switch section 422, switch 423, 4
24, etc., a display section 450 consisting of a liquid crystal display 452 and an LCD driver 454, and a key section 430 consisting of a plurality of keypads,
Handset microphone 496, handset receiver 49
The audio input/output section 490 consists of 8 audio input/output sections. i
The control unit 418 performs overall control of the entire handset 400b based on control signals sent from the audio/control unit 330 of the radio 300, and also controls the control signals input from the key unit 430 to the wireless tifi 300. It is sent to the audio/control unit 330 of. Amplifier 419a
, 419b amplify the audio signal sent from the B/U converter 411 of the main body 400a. Attenuator 420 attenuates this audio signal. amplifier 419a, attenuator 420,
The audio signal via amplifier 419b is output from handset receiver 498. Amplifier 419c amplifies the audio signal input from handset microphone 496. U
The /B converter 421 converts this amplified audio signal on the unbalanced line 421a into a signal on the balanced line 421b. The audio signal converted into the signal on the balance line 421b is sent to the audio section 337 via the balance line 421b and the balance line 421C on the main body 400a. The switch 423 transfers the audio signal from the B/U converter 411 to the handset receiver 498.
Switch whether or not to output from.

The switch 424 switches whether or not to send the audio signal from the handset microphone 496 to the audio section 337 of the wireless Ia 300.
The switching of 424 is performed based on the control signal sent from the control section 418, but the switching of the main body 400a described above is
This is done in conjunction with the side switches 416 and 417. That is, when this car phone 100 is in the standby state, all switches 416, 417, 423, and 424 are in the off state, and when the confirmation sound for key input is sounded, the switch 416 is in the on state, and the switches 417, 423, and 42 are in the off state.
4 is in the off-hook state and when making a call with the handset 400b off-hook, the switches 423 and 424 are turned off.
is on, and switches 416.417 are off. When talking with handset 400b on hook, switch 416.417 is on and switch 423.424 is off. Audio switch M
422 is a level detector 422a, an OR circuit 422b,
It is composed of a switch 422c. Level detector 422
A detects the signal level of the audio signal input to the handset microphone 496, and outputs an "L" level signal when the signal level is below a predetermined value, and a "K" level signal when the signal level is above a predetermined value. The OR circuit fl' 3422b calculates the logical OR of the output signal of the level detector 422a and a predetermined control signal output from the control section 418. The switch 422c is
When an "L" level signal is input from the OR circuit 422b, it becomes an on state, and the audio signal line 421a falls to the ground level. Therefore, the handset microphone 49
The audio signal from 6 is not transmitted to the audio section 337, and the handset microphone 496 is turned off. Further, when the switch 422c receives an "H" level signal from the OR circuit F#I 422b, the switch 422c turns off and turns on the handset microphone 496. Here, the control signal from the control unit 418 that is input to one side of the OR circuit 422b described above is at the "L" level during standby/reception or normal talking, and "L" level during the recognition mode that enables voice dialing, which will be described later. H
Therefore, if you do not speak during a call, use this handset microphone 49.
6 is in the off state, and the noise inside the car 500 is not transmitted to the other party, allowing a comfortable conversation. On the other hand, in the recognition mode that enables voice dialing, the handset microphone 4
96 is always on, level detection times 1142
This is unrelated to the switching of 2a. Here, the level detection circuit 11'8422a has a capacitor (not shown) having a predetermined time constant in order to prevent discomfort caused by frequent switching when switching based on utterance during a call. .

For this reason, in the past, this capacitor lowered the level of the beginning of the voice word during voice dialing, making voice dialing unreliable.
In 100, this problem is solved by keeping the handset microphone 496 always on during the recognition mode that enables voice dialing as described above, and dialing can be performed reliably.

The liquid crystal display 452 includes a several-digit numerical display section 452a and a
It consists of a function display section 452b and the like. LCD driver 454
is the liquid crystal display 4 based on the control of the IlIgFJ section 418.
52 to perform a predetermined display.

The key part 430 is the number keys "0" to "9", "*",
"#", rSND,, rsTo,, "ENDJ, rRc
LJ, rFCN, rCLRJ, rEMRJ, rMUT
It consists of a keypad such as function keys such as "E", "ToNE", etc., and when the keypad is pressed, this is recognized by the control unit 418.

Next, the operation of the mobile phone device 100 having such a configuration will be explained in detail based on a flowchart.

First, the connection control operation of this car telephone device 100 is performed in the eighth
This will be explained based on the diagram.

When the on/off switch 474 of the switch section 470 of the telephone 400 is turned on, power is supplied to each section from the power supply section 390 (step 801).

FIG. 9 is a flowchart showing detailed operations at that time.

That is, when the power is turned on, each part is reset (step 901), and when the reset of these parts is completed, for example, the entire surface of the liquid crystal display 452 flashes, or a predetermined ringing sound is output from the speaker 492. The user is notified that the reset has been completed.

After this, it is confirmed whether the locked state is set (step 902).
If a predetermined key operation is not performed at 30, no further operation will be performed, thereby preventing unauthorized use.

If the lock state is set, the LCD display 452
The rLOcKJ display lights up at step 903.
), on the other hand, if the locked state is not set, the "N03VCJ display lights up on the liquid crystal display 452" (step 904).

Next, when such reset is completed, initialization is performed (step 802).

FIG. 10 is a flowchart showing the detailed operation at that time.

That is, the audio/control unit 3 in the radio 300
30 obtains received field strength information by causing the demodulator 312 to scan a control channel (hereinafter abbreviated as D channel) predetermined for the system (step 1001). Then, among the D channels, the D channel having the strongest electric field strength is received. At this time, information on the D channel, which has the next strongest electric field strength among the D channels, is also obtained.

Thereafter, the control signal processing unit 338 performs bit synchronization and frame synchronization, that is, word synchronization, with the D channel being received (step 1002), and obtains system information from this D channel (step 1003).

Incidentally, if the above-mentioned word synchronization or system information reception is not performed even after a predetermined period of time has elapsed, the same thing is performed using the D channel with the next stronger electric field strength (step 1004). In this case, if word synchronization or system information reception is not performed after a predetermined period of time has elapsed, the demodulator scans the D channel again.

When this initialization is completed, the first
As shown in FIG. 1, a similar scan is performed on a control channel (hereinafter abbreviated as P channel) for receiving incoming call signals, etc. (step 803).

That is, the audio/control unit 330 in the wireless FI 300 obtains received field strength information by causing the demodulator 312 to scan each P channel (step 1101). Then, a state is reached in which the P channel having the strongest electric field strength among the P channels is received.

At this time, among the P channels, the P channel with the next strongest electric field strength
Channel information is also available.

Thereafter, the control signal processing N338 performs bit synchronization and frame synchronization, that is, word synchronization, with the P channel being received (step 1102), and obtains system information from this P channel (step 1103).

Note that if the above-mentioned word synchronization or system information reception is not performed even after a predetermined period of time has elapsed, the same thing is performed using the next P channel with the strongest electric field strength (step 1104). In this case, if word synchronization or system information reception is not performed even after a predetermined period of time has elapsed, initialization is performed again (step 802).

In addition, if position information cannot be obtained from the system information, initialization is performed again (step 802).
.

The above connection control causes the device to enter a standby/receive state (step 804).

When an incoming call signal is received via the P channel in this standby reception state, a response signal is returned on a predetermined channel (step 805), and a control signal is sent to the base station in order to establish a call line etc. Scanning similar to the above-mentioned D channel and P channel is performed on the I111gl channel (hereinafter abbreviated as A channel) which performs reception.

That is, the audio/control unit 3 in the radio 300
30 obtains received field strength information by scanning each A channel with a demodulator 312.

Then, among the A channels, the A channel having the strongest electric field strength is received. Thereafter, when the MtlJ signal processing unit 338 performs pip synchronization and frame synchronization, that is, word synchronization, with the A channel being received, and obtains a speech channel designation signal via this A channel, the designated speech channel is (step 80)
7). Then, this call channel enters the standby state for a calling signal (step 806). Note that if the call ends in this reception state, the reception state on this call channel is canceled and the transmission function is stopped (step 807). (Step 808).

Thereafter, when a paging signal is received through the communication channel, the system waits for a user's response (step 809).

When the user responds by going off-hook or pressing the rsENDJ key, a call is made (step aio>), and when the call ends, the reception state on this call channel is canceled (step 807), and the transmission function is stopped. (step 808); however, if a call signal is received during a call, the system will wait for the user's response again (step 808).
Step 809); Note that if fading occurs for a predetermined time or longer in the above-mentioned call channel reception layer (step 806), response signal return state (step 804), or call letter U<step 810), the transmission Ia function is stopped. (Step 808).

Then, when the transmission function is stopped, step 808
), initialization is performed again (step 802
).

Next, we will explain how to make a call. This call is also made from the standby state in the same way as the above-mentioned incoming call (step 804).
, step 811).

FIG. 12 is a flowchart showing such a calling operation in more detail.

Key? i! When a call request is received from the I430 or by a voice dial, which will be described later, a timer is set to count the time required to accept the call (step 12H).

The set time is, for example, 12 seconds.

After this, the audio/control unit in the radio unit causes the demodulator to scan each predetermined control channel (step 1
202 > to obtain received field strength information.

Of these control channels, Todoroki also enters a state in which it receives a control channel with a strong electric field strength. In addition, at this time,
Information on the control channel with the next strongest electric field strength among the control channels was also obtained.

Next, it is confirmed whether the user intends to make a call (
Step 1203). This is done after the user sets the phone number of the party he/she wants to call using key part 430.
If the call flag that changes state by pressing the DJ key is "1", it is determined that there is an intention to make a call, and rS
If the calling flag becomes "0" by pressing the rENDJ key after pressing the E N D J' key, it is determined that there is no intention to make a call. Note that if the user has no intention of making a call, initialization is performed again (step 8).
02).

Thereafter, the control signal processing unit performs bit synchronization and frame synchronization, that is, word synchronization, with the control channel being received, and obtains system information from this control channel (step 1204). Note that if word synchronization cannot be achieved, Then, the same thing is done using a control channel with a strong electric field strength (step 1205). In this case, if word synchronization cannot be achieved, initialization is performed again (step 802>).

Also, at this point, it is confirmed again whether the user intends to make a call (step 1206), and as in the case described above, if the call flag is "1", it is determined that the user has an intention to make a call. If the calling flag is "0", it is determined that there is no intention to make a call. Note that if the user has no intention of making a call, initialization is performed again (step 802).
).

Thereafter, this car telephone device 100 grabs a predetermined calling control channel based on the above-mentioned system information (step 1207). Note that due to this catching of the calling control channel, the calling signal sending enable flag changes from "0" to "0". Transition to "1" state. Furthermore, if the outgoing control channel cannot be grabbed, initialization is performed again (step 802).

Furthermore, if there is a delay in seizing the outgoing control channel (step 1208), the intention to make a call is confirmed again (step 1206).

Then, when it is determined that the user has an intention to make a call (the call flag is "1") and the call control channel is captured (if the call signal transmission possible flag is "]"), this Send a calling signal that includes at least the telephone number information of the destination set by the user on the calling control channel (Step 1)
209).

Thereafter, the base station receives a response signal to the call included in the system information of the #control channel from the base station and recognizes that the call signal has been sent (step 1210). Note that the base station side establishes a line connection with the other party based on the telephone number information included in the calling signal.

Then, a call state is established on the call channel (step 1211) specified by the control channel system information from the base station. Note that if a communication channel cannot be obtained, initialization is performed again (step 80).
2).

In this way, a telephone conversation similar to that at the time of the above-mentioned incoming call is performed (step 810), and then the conversation is terminated.

Next, the voice dial function of this car telephone device 100 will be explained in detail.

First, when performing voice dialing with this car telephone device 100, it is necessary to register the telephone number of the other party to be dialed in advance. FIG. 13 is a flowchart showing such a registration operation, and the registration operation will be explained below based on this flowchart.

First, the registration mode is set (step 1301).

This is done by a predetermined key operation in the key section 430 (step 1302), for example, the operation is
rCLRJ, "x", r Y J, "Z", rFUNc
This is done by pressing the J, "#", and "5" keys. Here, "X", "Y", and "Z" are unlock codes, that is, encryption codes set in advance by the user, etc. By setting unlock codes in this way, unauthorized registration by a third party can be prevented. , destruction of registered data, etc. is prevented.

When set to the registration mode in this way, the automatic ML telephone device 100 temporarily stops its R function as a telephone. In other words, it becomes impossible to receive or originate calls. This prevents the registration operation from being disturbed by incoming calls, etc., and allows correct registration. Furthermore, when the registration mode is set in this manner, the "LOCK" display blinks on the liquid crystal display 452, and the "PWR" display lights up.

Thereafter, it is confirmed whether or not to cancel the registration mode set in this way (step 1303).

This is done by operating a predetermined key in key portion 430. For example, to cancel registration mode, rFUN
This is done by pressing the CJ and rcLRJ keys (step 1304). Furthermore, when the registration mode is canceled in this way, each part becomes the state when it is reset (step 801). On the other hand, when the above-mentioned cancellation operation is performed If not, the release operation is not performed and the registration mode is set.

Then, with the registration mode set in this way, it is checked whether or not to set the bank (step 1).
305), this is done by operating a predetermined key in key section 430. For example, the bank setting operation (step 1306) is performed by pressing the rRCL, , "#", and "XJ" keys. Here, "X" is "
1” or “2” key, “3” to “9”, “0”
”, “#”, and “*” are set as locking keys. Incidentally, bank setting means to register data to be registered, that is, telephone numbers, divided into a plurality of groups, and to perform voice recognition during voice dialing, which will be described later, in units of groups (banks). In the above example, if the bank is set by setting rX to 1, registration will be done at bank 1', and
If the bank is set by “2”, the bank “2” will be set.
Registration will take place. Then, during voice recognition, bank “1”
If you specify ``, recognition will be performed based on the registered data of only bank ``1'', and if bank ``2'' is specified, recognition will be performed based on the registered data of only bank ``2''. However, by making bank settings like this, 1
With the 4S talking device 100, multiple users can make voice dials according to data based on each person's utterances, and quick and reliable voice dialing becomes possible. Furthermore, the convenience of voice dialing can be improved by allowing one user to use different banks according to predetermined conditions, such as for company use or personal use.

Next, it is confirmed whether or not to cancel the data of the already registered voice dialing party (step 1307), which is canceled by operating a predetermined key in the key section 430 (step 13).
08), it should be noted that such cancellation is not performed when no key operation is performed.

Furthermore, in this car telephone device 100, there are a batch cancellation mode and an individual cancellation mode as modes for performing such cancellation. For example, the operation for setting the batch cancel mode is performed by pressing the "rSTo", "#", and "0" keys. By setting the batch cancellation mode in this way, all the data of all the registered parties to be voice dialed, that is, the data related to the telephone number of the other party and the data related to the registered voice corresponding thereto, can be canceled all at once ( By being able to perform batch cancellation in this way, the data before batch cancellation will not remain, and the occurrence of erroneous dialing due to data remaining can be prevented. In addition, the operation for setting the individual cancel mode is performed by pressing the keys rsTo, ``XJ, r Y J.
, "Y" is a registered address set for each data of the other party to be voice dialed, which will be described later. By allowing individual cancellation in this way, it becomes possible to individually cancel, for example, registered data that is no longer used or is no longer needed.

Thereafter, the telephone number of the person to be voice dialed is set (step 130G), and this is done by a predetermined key operation in key section 430 (step 1310).
, for example, by pressing the other party's phone number with the number keys "0" to "9", or by pressing rRCL if the other party's phone number has been set in advance by speed dial.
, key and then press the speed dial with the number keys "0" to "9". Note that the telephone number set in this manner is displayed on the liquid crystal display 452, and user confirmation is performed.

Thereafter, a registered address corresponding to the telephone number set as described above is set (step 1311).

This is done by a predetermined key operation in the key section 430 (step 1312), for example,
This is done by pressing the rsTOJ, "X", and "Y" keys. Here, "X" and "Y" are "0" to "
This is the registered address indicated by the numeric key "9". In addition,
When the registered address is set in this way, the speaker 492
A predetermined ringing sound is output from the terminal to inform the user that, for example, a two-digit address corresponding to a nine-digit telephone number has been registered.

When the predetermined ringing sound is output in this way, the name, name, etc. of the other party corresponding to the telephone number set as described above is then registered by voice (step 1).
313) At that time, when any key in the key part 430 is pressed, the state becomes the state at which the registration mode is set (Step 1314) (Step 1315, Step 1302)
), so that if the user makes an incorrect utterance, by pressing any key, the user can return to the initial setting of the registration mode.

Voice registration is performed by generating voice twice (step 1316, step 1317). First, when the user utters the first voice, for example, "office"
When the utterance is made, if the utterance time is within a predetermined time (for example, 1 second), a beep sound is sounded twice, indicating that the first user's utterance has been accepted.

The user hears these two beeps and makes a second utterance. When the second utterance is also accepted, a message indicating that the voice has been registered, such as a message "Thank you", is sent in step 1309. The phone number you set will be output by voice synthesis. When voice registration is completed in this way, the user will receive rFUNc and rC
Press the LR key to cancel the registration mode. At this time, it is assumed that the input level is different when the voice recognition unit 350a generates the voice for the first time and the time for the second time,
These signals having different levels are used as audio data to be registered.

When the voice registration is performed in this manner, the telephone number set as described above is displayed on the liquid crystal display 452, and the voice of this telephone number is generated by the voice synthesis section 350b and output from the speaker 492.

This allows the user to confirm the registered telephone number, and prevents erroneous calls caused by erroneous registration.

Next, the voice dialing operation will be explained based on the flowchart shown in FIG.

First, if the bank is set (step 140
1) Specify the set bank (step 1402). This is performed by operating a predetermined key in key section 430. For example, the operation is rRC
This is done by pressing the L, ``#'', and ``X'' keys. Here, "X" is a numeric key "1" or "2", and these numeric keys "1" and "2" correspond to bank "1" and bank '2", respectively.

Note that the bank number specified in this way is displayed on the liquid crystal display 45.
2, and user confirmation is performed.

Next, the voice dial mode (hereinafter referred to as recognition mode) is set (step 1403), which is performed by operating a predetermined key in the key section 430. For example, the repetition is performed by pressing down any numeric keypad in key section 430 for a predetermined period of time or more, for example, one second or more. Note that when the recognition mode is set in this way, the ringing sound when a key is pressed becomes different from the normal sound, and the user is notified that the recognition mode is set by the ringing sound from the speaker 492 (step 1404).
), the recognition mode continues for a predetermined period of time, for example, 6 seconds. At this time, a recognition mode setting signal (H level signal) generated by a predetermined key operation is input to the OR circuit 422b via the control section 418 in FIG. 7.

When the recognition mode is set in this way, the state of the mode transition flag becomes "1" and the voice uttered by the user is recognized. Step 1: It is possible to reset the recognition mode or cancel the aOH mode.
405, step 1406). For example, when any of the ten keys in the key section 430 is pressed for a predetermined period of time, for example, one second or more, the recognition mode is reset. In other words, by pressing the numeric keypad for a certain period of time, all the voice recognition results up to that point are cleared and the speaker 4 is turned on again.
A ringing sound is generated from 92. This is possible even during voice recognition (step 1407), so if the user utters an incorrect voice or wants to change the call destination, the recognition mode can be easily reset and voice dialing can be performed again. Become. In addition, when canceling, the recognition mode is canceled by pressing any of the ten keys for less than 1 second.

When a voice is uttered by the user (step 1408), the voice is recognized by the voice recognition unit 350a, the corresponding telephone number is accessed, and the call flag is set to "1" to indicate that the user intends to make a call (step 1409). ),
The telephone number accessed in this way is displayed on the liquid crystal display 452, and the voice of this telephone number is generated by the voice synthesis section 350b and output from the speaker 492. This allows the user to confirm the telephone number and prevents so-called mistaken calls.

Thereafter, a predetermined period of time e.g.
When seconds have elapsed, a call is automatically made using the telephone number accessed as described above (steps 1410 and 1411), that is, step 1206 in FIG.
After it is determined that there is an intention to make a call, the channel to which the calling signal should be sent is determined, and after confirming the intention to make a call, the telephone number information recognized by the voice recognition unit 350a is sent via this channel. This operation is similar to the operation of sending out a calling signal including at least This is done after a predetermined period of time has elapsed after the notification of the recognition result of the call, so that the above-mentioned telephone number of the user is confirmed during this period. Note that if the notified phone number information, which is the recognition result, is not the user's desired phone number (step 1409), the recognition mode is reset or canceled by pressing the numeric keypad for a predetermined time (step 1406).
), or rEND.

When a key is pressed, processing such as canceling a call is performed, and a call interruption instruction signal is generated. The call can be made by performing a predetermined operation in the main part 430 before the automatic call is made.

For example, this operation is performed by pressing the rsENDJ key before making an automatic call. In this way, by being able to make a call without repeating automatic calls, the time required to make a call can be shortened.

[Effects of the Invention] As explained above, according to the data erasing method in the wireless telephone device of the present invention, a party to call can be registered effectively with a limited storage capacity.

[Brief explanation of the drawing]

Fig. 1 is a block diagram showing the configuration of a car phone device according to an embodiment of the present invention, Fig. 2 is a diagram showing an example of mounting this car phone device, and Fig. 3 is a block diagram showing the configuration of a car phone device of this invention. FIG. 4(a) is a block diagram showing the configuration of the voice dialing unit of this car phone device, and FIG. 4(b) is a block diagram showing the configuration of the voice dialing unit of this car phone device. FIG. 5 is a circuit diagram showing the configuration of a part of the voice recognition section of the voice dial section of the radio of this car telephone device.
FIG. 6 is a block diagram showing the structure of the voice synthesis LSI of the voice dialing section of the radio of this car phone device, and FIG. 7 is a circuit showing the structure of the telephone of this car phone device. 8 is a flowchart showing the connection control operation of this car phone device, FIG. 9 is a flowchart showing the operation when power is turned on during the connection control operation of this car phone device, and FIG. 10 is a flowchart showing the operation of this car phone device when the power is turned on. FIG. 11 is a flowchart showing the operation after initialization during connection control operation of this car phone device, and FIG. 12 is a flowchart showing the operation after initialization during connection control operation of this car phone device. FIG. 13 is a flowchart showing the operation at the time of a call, FIG. 13 is a flowchart showing the operation at the time of voice dial registration of this car phone device, and FIG. 14 is a flowchart showing the operation at the time of voice dial recognition of this car phone device. 200...Antenna 300...No ati 310...Radio section 330...Audio/#1t1 section 350...
...Voice dial section 350a...Voice recognition section 351...B/U (balanced/unbalanced) converter 351a, 412b, 421b...Balance line 351b... Unbalanced line 352... Bypass filter 353... Amplifier 354... AGC island 357... Voice recognition LSI 358... RAM 400. ...Telephone 412.421... U/B (unbalanced/balanced) converter 494...Hands-free microphone 496...
...Handset microphone applicant Co., Ltd.
Toshiba Representative Patent Attorney Satoshi Suyama - Figure 5 Figure 6 Figure 9 Figure υ Figure 12 Figure 13

Claims (2)

[Claims] (1) A voice input means, a voice recognition means for recognizing the voice input to the voice input means, a number storage means for storing a telephone number corresponding to a predetermined voice, and a voice recognized by the voice recognition means. and calling means for reading out a telephone number corresponding to the number from the number storage means and making a call according to this telephone number, and making it possible to delete all the contents stored in the number storage means at once. Data erasure method in wireless telephone equipment. (2) a voice input means; a voice recognition means for recognizing the voice input to the voice input means; a number storage means for storing a telephone number corresponding to a predetermined voice; and a voice recognized by the voice recognition means. and calling means for reading out a telephone number corresponding to the number from the number storage means and making a call according to the telephone number, the number storage means being characterized in that it is possible to partially erase the contents stored in the number storage means. Data erasure method in wireless telephone equipment.