JPH0777397B2 - Voice dial control device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a control system for a dial device in a telephone, and more particularly to a voice dial control device in an automatic dial device that responds to an incoming call signal by using voice recognition.

[Conventional technology]

To answer an incoming call (call) on a normal telephone, the person hears the bell sound driven by the incoming call signal (calling signal), lifts the handset (off hook), connects the telephone to the line, and talks. Is. The calling operation (dial operation) is that a person lifts the handset, connects the telephone to the line, and sends a dial signal from the rotary dial or push button.

As described above, in the case of an ordinary telephone, it is always necessary to lift and hold the handset with a hand or to operate a push button with a finger at the time of an incoming call, an outgoing call, or a call.

On the other hand, so-called hands-free telephones (loudspeaker telephones), in which both hands can be freely used, have been conventionally used. When you are on a call, you can use your microphone and speaker to freely use both hands, but when you receive a call, you hear a bell and press the off-hook button with your hand to respond by performing an alternative to lifting the handset of a normal telephone. When making a call, it was necessary to push the dial button by hand to send out a dial signal. In other words, it is not completely hands-free.

Therefore, it is inconvenient when the user is inconvenient in hand, for example, when he / she wants to make a call while driving the car with a car telephone.

As a technique for solving such a drawback, Japanese Patent Laid-Open No. 56-13
There is a dial device using the voice recognition technology described in JP-A-8353 or JP-A-58-51659. This is to automatically send a dial signal by voice.

[Problems to be solved by the invention]

In the above conventional technique, when a bell sound (or a buzzer sound) indicating an incoming call is mixed with a control voice (a registration voice for dialing or a voice for dialing), the control voice and the bell sound are simultaneously transmitted to the voice recognition device. There was a problem that it was input and caused a malfunction.

The present invention is an automatic dialing device using voice recognition, which monitors incoming calls, and when a ringing tone occurs, if the voice recognition device is waiting for voice input or capturing voice, It is an object of the present invention to provide a voice dial control device that stops erroneous operation by stopping the use of voice mixed with the bell sound in the subsequent processing.

[Means for solving problems]

The object is to provide an incoming call detecting means, a bell sound producing means, a voice recognizing means, a voice recognizing operation detecting means and a control means, and when the incoming call is detected, the voice recognizing means is waiting for a voice input or This is achieved by stopping the use of the voice for the subsequent processing if the voice is being captured.

[Action]

The incoming call detecting means detects a calling signal sent from the exchange and knows that a call has been made. The bell sound generating means notifies the person of the call detected by the incoming call detecting means by an audible sound. The voice recognition means extracts the input voice and registers it for the subsequent voice recognition processing. In addition, the input speech that has been cut out is compared with the previously registered speech for recognition processing,
The result is output. The voice recognition operation detection means detects whether the voice recognition means is waiting for a voice input or capturing a voice. The control means performs control necessary for the voice recognition means or other telephones by the output of each detection means.

When a call signal is sent from the exchange, the incoming call detection means detects this and notifies the control means, and the bell sound generation means generates a bell sound to notify the user that a call has been made. At this time, if the user is speaking because he / she is not registering the voice necessary for the voice recognition processing, the bell sound is mixed into this voice. The voice recognition operation detection means detects that the voice recognition means is cutting out the voice of the user and informs the control means. Then, the control means determines from the output of the incoming call detection means and the voice recognition operation detection means that the voice that has been captured is mixed with a bell sound, and performs control to reject the registration of this voice. By such control, the bell sound is not mixed in the registered voice, and the voice recognition process at the time of calling is prevented from malfunctioning.

〔Example〕

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

FIG. 1 is a block diagram showing a first embodiment of the present invention, which has two functions of a handset call and a hands-free call,
The configuration of a telephone with an automatic dialing function by voice recognition during hands-free calling is shown.

In Fig. 1, 1-1 and 1-2 are line terminals, 2 is a handset, 3 and 4 are receivers and transmitters built in the handset, and 5 is open by placing the handset and closed by lifting. Fax switch, 6 is an anti-sidetone circuit that performs 2-wire to 4-wire conversion, 7 is a switching circuit that switches between handsets and hands-free calls, 8 is a voice-switching hand-free call circuit that enables hands-free calls by voice switch method, Reference numeral 9 is a speaker, 10 is a microphone, 11 is an incoming call detection circuit for detecting a ringing signal transmitted from an exchange (not shown), 12 is a dial signal generating circuit for transmitting a dial signal to the line, and 13 is a dial number input. Dial push button, 14 is a voice recognition circuit, 15 is a voice recognition circuit that detects whether the voice recognition circuit is waiting for voice input or capturing voice. A motion detection circuit, 16 is a bell sound generation circuit that generates a bell sound for notifying the operator of an incoming call with an audible sound, 17 is a bell sound speaker, and 18 is an operation equivalent to lifting and returning the handset during a hands-free call Button switch that conveys the person's response or intention to make a call, 19 is a mode switch that conveys the intention to switch between hadset call / hand-free call / registration, 20 is an automatic push switch that can electrically control opening and closing, and is a push switch, 21 Is a control circuit for controlling the whole.

2 to 6 are flow charts for explaining the processing operation of the embodiment shown in FIG. 1, FIG. 2 is a flow chart showing the overall processing of FIG. 1, and FIG. 3 is shown in FIG. FIG. 4 is a flow chart showing the processing in the hands-free call mode, FIG. 4 is a flow chart showing the processing in the hand-free call mode in FIG. 1, and FIG. 5 is a flow chart showing the processing in the registration processing mode in FIG.
The figure is a flow chart showing the interrupt processing triggered by the output of the incoming call detection circuit 11 in FIG.

The processing operation of FIG. 1 will be described below with reference to these flowcharts.

First, a handset call, that is, an operation as an ordinary telephone will be described.

The operator switches the mode switch 19 to the handset call mode. The control circuit 21 reads the state of the mode switch 19 and controls the switching circuit 7 to switch the signal path of transmission / reception to the handset 2 side.

In FIG. 2, in step 100, when there is no incoming call, the incoming call flag is 0, and when there is an incoming call, the incoming call flag is 1, and the incoming call interruption process is performed as shown in FIG. In addition, when the mode switch 19 is switched to the handset mode (step 101), each is set to the handset call mode process (step 103), and when the mode switch is switched to the registration mode, the registration mode process (step 10).
4), otherwise hands free call mode processing (step 105).

That is, the handset call mode is the step shown in FIG.
Processing is performed at 103. This process will be described with reference to FIG.

When a call signal is sent from the exchange to the lines 1-1 and 1-2 and an incoming call is received, the incoming call detection circuit 11 detects this calling signal and notifies the control circuit 21 (the incoming call flag of step 106 is 1). At the same time, a detection signal is sent to the bell sound generation circuit 16. The bell sound generation circuit 16 emits a bell sound from the bell sound speaker 17 to notify the operator that an incoming call has been received. When the operator lifts the handset 2 (off hook), the hook switch 5 is closed and the telephone is connected to the line (step 107), and the call is communicated with the other party through the handset 2 and the handset 3, 4 in the handset 2 (step 109). . When the call ends, the operator puts on the handset 2 (on hook).
As a result, the fax switch 5 is opened (step 11
0), the telephone is disconnected from the line.

In the case of making a call (at this time, the incoming call flag of step 106 is 0), when the operator first lifts the handset 2, the fax switch 5 is closed (step 11).
1), the phone is connected to the line. Here, the operator inputs the telephone number of the other party by using the dial push button 13 (step 112). This input causes the dial signal generation circuit 12 to sequentially send dial signals to the line. With this dial signal, the exchange calls and selects the dialing partner,
Connect the line to the other party.

Next, a voice registration operation for hands-free communication will be described.

First, the operation of the voice recognition circuit 14 will be described. This voice recognition circuit recognizes word voices generated by a specific speaker, which is practically used, but is not limited to this. First, in order to perform the voice recognition process, it is necessary to register the voice of the operator in advance. This voice registration uses the voice recognition circuit 14 as a voice registration operation, inputs voice from the microphone 10, and uses a standard pattern memory (not shown) in the voice recognition circuit.
Is an operation of sequentially storing as a standard pattern. For example, when the utterance "Suzuki" is made, the utterance is cut out by a voice cut-out circuit (not shown), and the feature is analyzed and extracted and stored in the standard pattern memory as a time-series parameter pattern. "Sato", "Ota" ...
Each time the utterance is made, each standard pattern is additionally stored in the standard pattern memory.

Next, the voice recognition operation will be described. Using the voice recognition circuit 14 as a recognition operation, the same voice as previously registered, for example, "Suzuki" is input from the microphone 10. Then, this voice is cut out as in the case of registration and is temporarily stored in an input pattern memory (not shown) as a characteristic parameter pattern. Next, the contents of the input pattern memory and the respective standard patterns in the standard pattern memory are sequentially compared, and information as to which standard pattern is most similar is output as a result. In this case, the standard pattern code of "Suzuki" is output. As this comparison method, a known DP matching method or a similarity calculation method such as absolute value difference is used.

Next, a voice and telephone number registration operation for automatic dialing by voice recognition will be described with reference to the flowchart of FIG.

When the operator switches the mode switch 19 to registration, the control circuit 21 first causes the voice recognition circuit 14 to perform voice registration operation (step 113). Then, the operator utters the name of the person who automatically dials, for example, "Suzuki". The voice "Suzuki" is displayed in the standard pattern memory in the voice recognition circuit 14 as "0".
It is stored as a standard pattern with the code "0" (step 116). Next, the control circuit 21 disables the voice recognition circuit 14. Then, the operator dials Mr. Suzuki's telephone number, for example, "100". Input using the push button 13 (step 117) This telephone number is stored in the telephone number memory (not shown) in the control circuit 21. At this time, at the same time, the standard pattern code "00" (Step 119) The control circuit 21 again activates the voice recognition circuit 14 for voice registration, and the operator utters the name of the next automatic dialing party, for example, "Sato". To do. The voice "Sato" is similarly stored in the standard pattern memory as a standard pattern with the code "01". The control circuit 21 is the voice recognition circuit 14
Disable. Then, the operator inputs Mr. Sato's telephone number, for example, "101", by using the dial push button 13. This telephone number is likewise stored in the telephone number memory together with the code "01" which is the same as the standard pattern. Below, the operator repeats registration as many times as necessary. When finished, switch the mode switch 19 to handset call or handsfree call.

During this registration work, when a call signal is sent from the exchange, that is, when an incoming call is received (incoming call flag = 1 in steps 115 and 118), the incoming call detection circuit 11 detects this calling signal and notifies the control circuit 21 of the call. The sound vocalization circuit 16 is also notified. The bell sound producing circuit 16 produces a bell sound from the bell sound speaker 17 to notify the operator that an incoming call has been made. At this time, if the voice recognition circuit 14 is waiting or taking in the registered voice input of the operator, the voice recognition operation detection circuit 15 detects this and notifies the control circuit 21. Control circuit
Reference numeral 21 denotes the sound cut out by the voice recognition circuit 14 by the output of the incoming call detection circuit 11 and the voice recognition operation detection circuit 15 if the sound is in a standby state, it is a bell sound, and if it is being captured, a bell sound is emitted in the voice. It is determined that they are mixed, and the voice recognition circuit 14 is controlled to prohibit storing this as a standard pattern in the standard pattern memory.

The operator hears the bell and, if he / she wants to make a call, interrupts the registration work, switches the mode switch 19 to the handset mode if he / she wants to talk with the handsets, and the mode switch 19 if he / she wants to talk hands-free. Switch to hands-free mode (step 121). In the case of a handset call, when the operator lifts the handset 2, the fax switch 5 is closed, the telephone is connected to the line, and the call is made to the other party by using the handset / transmitter 3, 4. When the call ends, the operator places the handset 2 to open the fax switch 5 and remove the telephone from the line. In the case of hands-free communication, when the operator presses the fax switch button 18, the control circuit 21 closes the automatic fax switch 20 and connects the telephone to the circuit. Then, the operator uses the voice switch type hands-free circuit 8 to make a speaker 9, a microphone 10
Use to call the other party. When the call is completed, the hook button switch 18 is pressed again, and the control circuit 21 controls the automatic fax switch 20 to open it and disconnect the telephone from the line.

The operator who ended the call switches the mode switch 19 to the registration mode in order to return to the registration work again. Next, the operation of the hands-free call will be described with reference to the flowchart of FIG.

When the operator switches the mode switch 19 to the hands-free call mode, the control circuit 21 controls the switching circuit 7 to switch the signal path for transmission / reception to the voice switch type hands-free call circuit 8.
Switch to the side of.

When a call signal is sent from the exchange, that is, when an incoming call is received (incoming flag = 1 in step 122), the incoming call detection circuit 11 detects this calling signal and informs the control circuit 21 of the bell tone vocalization circuit 16 at the same time. Inform. The bell sound producing circuit 16 makes a bell sound from the bell sound speaker 17 to notify the operator of the incoming call. The operator hears the bell and presses the hook button switch 18 if he / she wants to make a call (step 123). Then, the control circuit 21 controls the automatic fax switch 20 to close the state and connect the telephone to the line (step 124). Then, the operator uses the speaker 9 and the microphone 10 to talk with the other party through the voice switch type hands-free call circuit 8 (step 126). When the call ends, the operator presses the hook button switch 19 again (step 134). This allows
The control circuit 21 controls the automatic fax switch 20 to open the state and disconnect the telephone from the line (step 135).

Next, the operation of calling will be described. The voice recognition described above is used for this call. When the operator tries to make a call,
First, press the hook button switch 18 (step 127).
The control circuit 21 has not detected the incoming call by the incoming call detection circuit 11,
When the hook button switch 18 is pressed, it is determined that the call is made, and the voice recognition circuit 14 is set to the recognition operation (step 128). In the following, as shown in steps 129 to 131, the operator utters the name of the other party who has already registered the call, such as "Suzuki", according to the signal of the voice recognition circuit 14. This signal is given by, for example, an electronic sound producing circuit (not shown) in the voice recognition circuit 14. Of course, it is also possible to design so that the cues can be eliminated and the vocal button switch 18 can be pressed to speak immediately. This utterance is picked up by the microphone 10 and input to the voice recognition circuit 14. Speech recognition circuit 14
Captures this voice and compares the input voice pattern "Suzuki" with the standard patterns such as "Suzuki", "Sato", "Ota", etc., which have been registered in advance, as described in the previous voice recognition operation. The code of the similar standard pattern, in this case, "00" (indicating the standard pattern of "Suzuki") is output to the control circuit 21 as a result. Since voice recognition involves erroneous recognition, it is safer to let the operator confirm the recognition result. Therefore, the voice recognition circuit 14 presents and confirms the result to the operator. This is done as follows, for example. The voice recognition circuit 14 utters a voice corresponding to the most similar standard pattern using a voice synthesizing circuit (not shown) in the voice recognition circuit to give a "high" or "yes" recognition utterance to the operator. Ask. This "high" or "yes" utterance is also recognized by the voice recognition circuit 14. Naturally, the utterances of "high" and "yes" also need to be registered as voices as described above. It is not necessary to confirm the recognition result of “high” and “yes” because the number of categories is 2 and the recognition rate is high. When the operator recognizes that it is correct and inputs "high", the code of "00" and the code of "high" are output again to the control circuit. Then, the control circuit 21 learns that the operator has confirmed with the "high" code, and the automatic fax switch 20
Is closed by controlling (step 132) and the telephone is connected to the line. After that, by referring to the code "00", Mr. Suzuki's telephone number "100" stored in the telephone number memory is obtained, the dial signal vocalization circuit 12 is controlled, and the dial signal "100" is sent to the line. When the operator recognizes that he / she made an error and inputs "No", the code "00" and the code "No" are sent to the control circuit 21 again. The control circuit 21 controls the voice recognition circuit 14 again from the "No" code without controlling the automatic off-shift switch to perform the voice recognition operation. The voice recognition circuit 14 again prompts the operator to speak the name of the other party, and repeats the above sequence. Alternatively, the voice of the name of the other party is not prompted again, and then the second similar standard pattern voice, for example, "sato" is presented by voice synthesis, and the "high" and "yes" voices are again presented. It is also possible to use a method in which the presentation is continued and the third, fourth, ... In this method, for example, if there is a "high" input after the second "Sato" speech synthesis sound, the standard pattern codes "01" and "high" of "Sato" are output to the control circuit 21. The control circuit 21 looks at the "high" code and controls the automatic fax switch 20 to close it as before (step 13).
2) Connect the phone to the line. After that, referring to the code "01", the telephone number "101" of Mr. Sato stored in the telephone number memory is obtained, the dial signal vocalization circuit 12 is controlled, and the dial signal "101" is transmitted to the line ( Step 13
3).

Thus, when the voice recognition circuit 14 sends the confirmation code, the control circuit 21 connects the line, obtains the telephone number information corresponding to the standard pattern code accompanying this code, and outputs the dial signal voicing circuit. Send a dial signal from 12 to the line.

When the line is connected to the other party and the call ends, the operator presses the hook button switch 18 again (step 134). Then, the control circuit 21 opens the automatic fax switch 20 to disconnect the telephone from the line (step 135).

Next, a case where a call is made during this calling work will be described. When a call signal is transmitted from the exchange, that is, when an incoming call is received (incoming call flag = 1 in step 130 and step 136),
The incoming call detection circuit 11 detects this calling signal and detects it.
At the same time, the bell sound vocalization circuit 16 is notified. The bell sound producing circuit 16 produces a bell sound from the bell sound speaker 17 to notify the operator that an incoming call has been made. At this time, if the voice recognition circuit 14 is waiting for the voice input of the operator (name voice or confirmation voice of "high" or "yes") or is capturing this voice, the voice recognition operation detection circuit 15 This is detected and the control circuit 21 is notified. Control circuit 21
Is output by the incoming call detection circuit 11 and the voice recognition operation detection circuit 15, the sound cut out by the voice recognition circuit 14 is a bell sound if it is in a standby state, and a bell sound in the voice if it is being captured. Judge that it is a mixture. And the control circuit 21
Controls the voice recognition circuit 14 to stop the next operation, for example, the calculation of the similarity between the input voice pattern and the standard pattern. If the result output from the voice recognition circuit 14 is output, this is invalidated. Since the priority is given to the incoming call, the automatic fax switch 20 is immediately controlled to be closed and the telephone is connected to the line (step 137). The operator hears the bell sound, stops the calling work, and talks with the other party via the voice switch type hands-free communication circuit 8 using the speaker 9 and the microphone 10 (step 126). When the call ends, the operator presses the hook button switch 18 again (step 134). And the control circuit 21 is an automatic fax switch 20.
Open and disconnect the telephone line (step 135). Even if the incoming call is not waiting for the voice input or being captured, for example, even if the confirmation voice is being output by using the voice synthesis circuit for recognition, the incoming call has the same priority as described above. Then, the control circuit 21 closes the automatic fax switch 20 (step 137) to start a hands-free call.

As described above, according to the present embodiment, it is possible to reduce the erroneous recognition in the voice recognition process and to prevent the erroneous operation of the telephone without registering the voice mixed with the bell sound. Also, the call can be accepted even during the registration work. Further, even during the calling work, it is possible to prevent the telephone from malfunctioning due to the recognition error caused by the mixing of the bell sound. Further, in this case, it is possible to directly enter the call by receiving the call.

Further, in the present embodiment, the speaker 9 and the bell sound speaker 17 are used.
It is clear that can be shared, that is, either one can be shared. Further, the bell sound producing circuit may be replaced with a voice synthesizing circuit, and a voice such as "the telephone is busy" may be used instead of the bell sound. Further, instead of the hook button switch 18, voice control using the voice recognition circuit 14 may be performed. For example, instead of pressing the hook button switch first, the voice is called "dial", and then, instead of pressing the hook button switch, the voice is called "end". The handling of the control circuit 21 at the time of uttering the bell sound during the voice input is the same as the calling operation at the time of the hand-free call described above,
The voice control is disabled and the automatic fax switch 20 is immediately closed to shift to a hands-free call.

In FIG. 1, the dial signal voicing circuit 12 has its output connected to the line side as the voicing source of the pulse dial signal, but if it is the DTMF signal voicing source, it should be connected to the 4-wire side of the protection side sound circuit 6. Is preferred.

Of course, even in the case of a hands-free call, the dial push button may be used to enable dialing.

FIG. 7 is a block diagram showing a second embodiment of the present invention, in which the same reference numerals as in FIG. 1 correspond to the same parts, 22 is an echo-cancell type hands-free communication circuit, and 23 is a transmission path switch. .

In the figure, a hand-free speech communication circuit has an echo cancellation cell communication circuit 22. For this reason, a transmission path switch 23 is inserted between the switching circuit 7 and the soundproof side sound circuit 6. In the embodiment shown in FIG. 1, since the voice switch type hands-free communication circuit 8 is used, the switching circuit 7
Is a hands-free call side, even if a voice is input to the microphone 10 for voice registration or voice recognition, this voice signal is reflected by the protection side sound circuit 6 and is not output from the speaker 9. . As is well known, the voice switch type hands-free communication circuit 8 prevents howling and enables one-way communication. When a communication, that is, an input from the microphone 10, a large loss is inserted in the signal path of the reception, that is, the speaker 9. This is because it is based on the principle. But this 7th
In the embodiment shown in the figure, since the echo-cancell type hand-free call circuit 22 is used as the hand-free call circuit, the voice signal from the microphone 10 may be reflected by the protection side sound circuit 6 and output from the speaker 9. is there. In the echo cancel method, from the input signal from the microphone 10, this is reflected by the side soundproof circuit and radiated into the room from the speaker 9.
Predict the signal that is echoed on the wall and input to the microphone 10 again and create it using a digital filter, etc.
Echo (echo) is canceled by subtracting,
It prevents howling and prevents reverberation from being sent to the line. Therefore, the input sound is output from the speaker 9 for a few hundred ms from the input due to the convergence response time of the digital filter, is echoed by the wall, and is delayed by the echo time and is superimposed on the current input signal. . That is, the reverberation sound may be superimposed on the registered voice or the input voice for dialing as noise to cause malfunction.
The transmission path switch 23 is for cutting off this echo. At the time of voice input other than a call, the transmission path switch 23 is opened, and the voice input from the microphone 10 is not output from the speaker 9.

In the present embodiment, the switch is inserted in the transmitter, but between the microphone 10 and the transmission input of the echo-cancell type hands-free call circuit 22, or the reception output of the speaker 9 and the echo-cancell type hands-free call circuit 22. A switch may be inserted between and. At this time, the switching circuit 7 may be placed on the handset side. In other words, the microphone 10, the echo-cancell type hands-free call circuit 22, the side sound protection circuit
6, a speaker 9, a switch circuit may be provided somewhere in a loop loop formed by acoustic coupling of the microphone 10 and the speaker 9 in the room, and the signal path may be disconnected.

Since the other operations of this embodiment are the same as those in FIG. 1, the description thereof will be omitted.

As described above, according to the present embodiment, the same effect as that of the embodiment of FIG. 1 can be obtained even if the echo-cancell type hand-free communication circuit is used.

FIG. 8 is a block diagram showing a third embodiment of the present invention, which is constructed so as to have a function capable of automatically dialing by voice recognition from a handset.

In the figure, the same reference numerals as those in FIG.
Is a microphone switching circuit for switching between the output of the transmitter 4 and the microphone 10 of the handset 2 and inputting it to the voice recognition circuit 14, 25 is a call switching switch for switching between handset call and handsfree call, 26 is a registration switch for performing registration work, 27 Is a hook detecting circuit for detecting whether the handset 2 is placed or lifted.

In the embodiment shown in FIG. 1, the line connection during the handset call was made by opening and closing the fax switch 5 by lifting and lowering the handset 2, but in the present embodiment, voice registration from the handset is performed, so that the handset at this time is connected. Since there is a problem when connecting the line by lifting, a hook detection circuit 27 is provided, and in this state, the automatic hook switch 20
To control the connection to the circuit. At the time of voice registration, that is, when the registration switch 26 is turned on, the control circuit 21 does not control the automatic fax switch 20. During a handset call, the handset 2 is lifted (off hook) and replaced (on hook) as in the embodiment shown in FIG.
Is detected by the hook detecting circuit 27 and the automatic hook switch 20 is controlled.

The microphone switching circuit 24 selects this for voice registration from the transmitter 4 of the handset 2, and selects it for voice registration from the microphone 10. The call switching switch 25 selects either handset calling or handsfree calling, and the switching circuit 7 is also switched in conjunction with this. Registration switch 26 indicates registration when it is pressed, and if call switch 25
Indicates a handset call, it indicates voice registration from the handset. If it indicates a hands-free call, it indicates voice registration from the microphone 10.

9 and 10 are flow charts for explaining the processing operation of the embodiment shown in FIG. 8. FIG. 9 is a flow chart of the whole processing, and FIG. 10 is a flow chart of processing in the handset call mode. is there.

In FIG. 9, when there is no incoming call (incoming call flag of step 139 = 0), if the call switching switch 25 is set to the handset side, the handset call mode processing (step 143) is performed, and according to the flow chart of FIG. , Voice can be input from the transmitter 4 of the handset 2, and automatic dialing can be performed by voice recognition.

If the registration switch 26 is turned on with the call switching switch 25 set to the handset side, the handset registration mode process (step 144) is started.

On the other hand, when the incoming call flag is 0 and the call switching switch is
When 25 is not on the handset side but on the handsfree side, if the registration switch 26 is on, the handsfree registration mode process (step 146) is performed, and if the registration switch 26 is off, the handsfree call mode process is performed.

FIG. 11 is a block diagram showing a fourth embodiment of the present invention, which is applied to a car telephone.

In the figure, the same reference numerals as in FIG. 1 correspond to the same parts,
Reference numeral 28 is a wireless antenna for exchanging signals with a base station (not shown), and 29 is a mobile device for transmitting and receiving control signals and voice signals for wireless telephone communication with the base station. In a car telephone, the connection of a call signal (call signal), a dial signal, and a fax switch on an ordinary terrestrial telephone line is all performed by wireless transmission and reception of the control signal (called a control channel). In addition, the voice signal is assigned to the wireless channel for which the reception and the transmission are independent.

The basic operation is similar to that of FIG.
The relationship between 29, the incoming call detection circuit 11, and the dial signal vocalization circuit 12 will be described.

The call signal is coded by the base station on the control signal channel and received by the mobile station 29. This signal is detected by the incoming call detection circuit 11 and notified to the control circuit 21, and at the same time, made an audible sound by the bell sound producing circuit 16 and the bell sound speaker 17 to inform the operator. The dial signal of the dial signal voicing circuit 12 is also coded, placed on the control signal channel, and sent from the mobile unit 29 to the base station. For connection to the line, for example, when an incoming call is made in a handset call, a bell sound is first emitted, and when the operator lifts the handset 2, the hook detection circuit 27 detects the lift and controls. The circuit 21 tells the mobile unit 29 via the control signal channel,
A code for instructing the connection of the line is transmitted to the base station. Then, a voice signal receiving / transmitting wireless channel is set between the base station and the mobile device 29, and a call becomes possible.

As described above, in the car telephone, the control of the network such as the call signal, the dial signal, and the connection to the line is performed by the wireless transmission and reception by the control channel, and the voice signal is separately performed by the wireless channel independent of the transmission and reception channel. It is no different from an ordinary telephone except that it does not require a side-tone sound circuit.
Therefore, the incoming call operation, the outgoing call operation, or the registration operation in this embodiment are the same as those in FIG. 1, and the description thereof will be omitted.

〔The invention's effect〕

As described above, according to the present invention, a bell sound or a sound in which a bell sound is mixed is not registered, and erroneous recognition in the voice recognition processing due to this can be prevented, and thus a malfunction of the telephone can be prevented. It is possible to accept a call even during registration work, and it is possible to prevent the phone from malfunctioning due to misidentification of the bell sound even during call work or other voice control of the phone. Therefore, it is possible to provide a voice dial control device having an excellent function by eliminating the drawbacks of the prior art, such as being able to directly enter a call.

[Brief description of drawings]

FIG. 1 is a block diagram showing the first embodiment of the present invention, and FIGS. 2, 3, 4, 5, and 6 are flow charts for explaining the processing operation of the embodiment of FIG. FIG. 7 is a block diagram showing the second embodiment of the present invention, FIG. 8 is a block diagram showing the third embodiment of the present invention, and FIGS. 9 and 10 show the processing operation of the embodiment of FIG. FIG. 11 is a flow chart for explaining, and FIG. 11 is a configuration diagram showing a fourth embodiment of the present invention. 11 …… Incoming call detection circuit, 14 …… Voice recognition circuit, 15 …… Voice recognition operation detection circuit, 16 …… Bell sounding circuit, 21 …… Control circuit.

Claims (3)

[Claims] 1. An incoming call detecting means for detecting an incoming call from the outside and outputting an incoming call signal when the incoming call is made, and an audible bell sound in response to the incoming call signal from the incoming call detecting means. A bell sound generating means for generating, a voice recognizing means for performing registration and recognition processing operation of input voice data, a state of the voice recognizing means is detected, and the voice recognizing means detects a voice for voice registration and recognition. In the input standby state or the input voice capturing state, the voice recognition operation detecting means for outputting an operation detection signal, the incoming call signal from the incoming call detecting means, and the operation detection signal from the voice recognition operation detecting means at the same time. A voice dial control device which, when output, rejects the voice data taken in by the voice recognition means and stops the processing operation of the voice recognition means. 2. A voice dial control device for a telephone having at least a hand-free call function, which is equipped with an echo cancellation type hand-free call means, detects an external call, and when the call is received, an incoming call signal is sent. An incoming call detecting means for outputting a bell sound producing means for producing an audible bell sound in response to the incoming call signal from the incoming call detecting means, and a voice for performing registration and recognition processing operation of input voice data. A voice recognition operation that detects the state of the recognition unit and the voice recognition unit, and outputs a state detection signal when the voice recognition unit is in the voice input standby state or the input voice capturing state for voice registration and recognition. Detection means, a voice signal path opening / closing means for opening / closing a transmission path, the voice signal call opening / closing means is closed only during a call, and the incoming call signal from the incoming call detecting means When said operating detection signals from the voice recognition operation detecting means is outputted simultaneously,
A voice dial control device, comprising: control means for rejecting the voice data taken in by the voice recognition means and stopping the processing operation of the voice recognition means. 3. A voice dial control device for a telephone, comprising a handset call means and a hands-free call means and capable of selecting a handset call function and a hands-free call function, which detects a call from the outside, Incoming call detection means for outputting an incoming call signal when there is a call, bell sound generation means for generating an audible bell sound in response to the incoming call signal from the incoming call detection means, and Voice switching means for selecting voice data from the first transmitter and voice data from the second transmitter for hands-free communication, and input voice data selected by the voice switching means As voice data, a voice recognition means for registering and recognizing the input voice data, and a state of the voice recognition means are detected, and the voice recognition means detects the voice for voice registration and recognition. A voice recognition operation detecting means for outputting a state detection signal when in a power standby state or an input voice capturing state; and in the registration operation mode of the voice recognition means, the voice data from the first or second telephone set is transferred. In the recognition operation mode of the voice recognition means, the voice switching means is controlled so that the voice data from the second telephone set is selected,
Further, when the incoming call signal is output from the incoming call detection unit and the operation detection signal is output from the voice recognition operation detection unit at the same time, the voice data captured by the voice recognition unit is discarded and the voice recognition unit is rejected. And a control means for stopping the processing operation of the voice dial control device.