JPH02237255A - Telephone system - Google Patents

Abstract

PURPOSE:To adjust a sound in an appropriate level at the time of registering the sound by including a level display means which receives an input sound signal from a transmitter and which displays the level in a telephone system provided with a sound recognition device. CONSTITUTION:In a registration mode, change over switches 4-1 and 4-2 close a contact point corresponding to the registration mode, a handset is off-hooked and a hook switch 3-2 is closed. A control part 15 sets an analogue switch ASW 1 in an ON-state, and sets an analogue switch ASW 2 in an OFF-state. The sound signal inputted from the transmitter 8 is given to a sound recognition part 12 in a standby state for sound registration and is given to the level display device 11. Then, the level of the input sound is displayed in the level display device 11. Thus, a speaker can grasp the level of the inputted sound and it can be appropriately adjusted, whereby the sound can be registered in a satisfactory state.

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Application Field) The present invention generally relates to a telephone device, and more particularly to a telephone device having a function of dialing by voice input using voice recognition.

BACKGROUND OF THE INVENTION Telephone devices of this type generally operate as described below. That is, the device is first set to registration mode, and then voice and telephone number are input. The input voice is analyzed by a voice recognition device, converted into a pattern for comparison, and stored in a built-in storage device in correspondence with the input telephone number. Next, the handset is set to a call mode, and after going off-hook to make a dial call, voice is input from the handset's transmitter. Then, the voice recognition device analyzes the input voice and converts it into a pattern, which is compared with a pre-stored comparison pattern. As a result of the comparison, if the voice recognition device determines that the two match, it reads out the stored telephone number from the memory in association with the matched comparison pattern and calls it to the central office line (telephone line).

(Problem to be Solved by the Invention) By the way, in a telephone device equipped with a voice recognition device as described above, the input level of the voice signal (the loudness/lowness of the input voice) is different from the result of voice recognition by the voice recognition device. , which has a considerable effect on the operation of telephone equipment. That is, the input level of the audio signal has a very large influence on the process of creating a comparison pattern of input audio in the registration mode, and the process of comparing the comparison button and the input audio when making a voice dial call in the call mode. Therefore, conventionally, with this type of telephone device, the voice input level at the time of registration is "OK" (acceptable), "NG" (unacceptable).
, "SPEAK AGAIN" (re-input), etc. has been proposed, and a device is proposed in which a re-input is requested when the audio input level is not acceptable.

However, in the telephone device according to the above proposal, the speaker does not know the appropriate level for registering his/her own voice until after actually inputting his or her own voice from the transmitter. It is not possible to specifically know the level in real time and adjust it to an appropriate level during the operation.

Furthermore, when registering speech, it is necessary to perform a series of speech registration processes under a good S/N ratio, and to do so, it is necessary for the speaker to adjust the noise level when the surrounding noise is loud. It is desirable to be able to understand the level of the input audio and determine what level should be set for the input audio.

Also, even during normal calls, the level of the sending signal sent to the other party's telephone device through the telephone line is at an appropriate level, but with conventional telephone devices, the voice may be far away from the other party's voice, etc. There is also a request to make it possible for the parties to understand the problem, since it is not known until it is pointed out.

Furthermore, by making it possible to inform the speaker of the level of the reception signal sent from the other party, it is possible for the other party to stop talking when the speaker removes the handset from his ear and attempts to hang up. If you try to continue,
It is possible to prevent a situation where the call is hung up without realizing it.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to enable a telephone device equipped with a voice recognition device to specifically grasp the voice input level in real time at the time of voice registration, and to increase the noise level especially when the surrounding noise level is high. Another object of the present invention is to provide a telephone device in which it is possible to concretely grasp the situation, and also to confirm whether the level of a transmitting signal is appropriate or not during a call, and also to display the level of a receiving signal.

[Structure of the invention]

(Means for Solving the Problems) Firstly, the present invention registers the input voice from the transmitter in advance, and automatically automatically registers the input voice from the transmitter at the time of dialing based on the comparison between this and the input voice from the transmitter at the time of dialing. Provided is a telephone device capable of dialing a telephone line, characterized in that it has a level display means for receiving an input audio signal from the transmitter and displaying the level.

A second aspect of the present invention is that the level display means can also receive a reception signal input from a telephone line,
To provide a telephone device having a selection means for selectively supplying input voice from a transmitter to a level display means when inputting voice at the time of registration and dialing, and selectively inputting voice input from a telephone line at the time of a call.

Further, thirdly, the present invention further includes incoming call display means that drives the level display means in response to an incoming call signal from the telephone line, and the incoming call display means is configured such that the level display means is not driven at the time of registration. providing a telephone device configured with

(Function) According to the first aspect of the present invention, the level of the input audio signal is displayed by the level display means at the time of audio input during audio registration, so that it is visible whether the level of the input audio signal is appropriate or not. It can be grasped visually.

According to the second aspect of the present invention, the level display means also displays the receiving signal level during a call and the transmitting signal level that comes around as sidetone, so that the transmitting signal level and the receiving signal level are visible. It can be grasped visually. Therefore, it is possible to visually determine whether the transmission signal is appropriate or not, and whether the other party is still talking when the speaker attempts to hang up.

According to the third aspect of the present invention, when there is an indication of an incoming call from the line, this is displayed by the level display means, so that the incoming call can be visually grasped. For example, even if the incoming call is in the mu1 state, the user can know that the incoming call has been received. Furthermore, during voice registration, the incoming signal does not interfere with confirmation of the input voice level.

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

FIG. 1 is an overall circuit diagram of a telephone device according to an embodiment of the present invention.

In FIG. 1, the AC end of the rectifier bridge 2 is connected to the line connection terminal L1. , L2 to a telephone line (not shown), and a positive side communication line L3 is connected to the DC end of the rectifier bridge 2.
and the negative side communication line L4 are connected. A line switch 5 for capturing the line is inserted into the plus side call line L3. Also, the plus side call line L
A speech network (hereinafter referred to as rsPNJ) 7 is connected between the communication line L4 and the negative side communication line L4. A transmitter 8 and a receiver 9 of the handset are connected to the SPN 7, respectively.

As is clear from FIG. 1, the SPN 7 is equipped with a large number of terminals, including a receiving audio input terminal a, a receiving audio output terminal b, a transmitting audio input terminal C, and a transmitting audio output terminal d. . The received voice input terminal a is connected to a sidetone prevention circuit 6, which will be described later.
It is connected to the plus side communication line L3 via. The received voice output terminal b is connected to the receiver 9 of the handset.

The transmitted voice input terminal C is connected to the transmitter 8 of the handset 1. The transmitter 8 is also an analog switch ASW
It is also connected to the voice input terminal p of the voice recognition section 12 and the level display means 1 through I. The transmitting voice output terminal d is connected to the plus side communication line L3.

The SPN 7 provides a voice input signal from the telephone receiver 8 as a transmitting signal to the other party's telephone device through the line, and also receives a receiving signal given from the other party's telephone device through the line and outputs it to the receiver 9.

The SPN 7 is driven by receiving power from the line when the line is captured, and is driven by receiving power from the DC power source V 1 or CC when the line is not captured.

The sidetone prevention circuit 6 is connected between the line switch 5 and the received voice input terminal a of the SPN 7 and the plus side speech line L3. The sidetone prevention circuit 6 supplies the audio signal from the transmitter 8 to the line with little loss while appropriately reducing the sidetone that circulates from the transmitter 8 to the receiver 9 in order to maintain good call quality. At the same time, the voice signal from the line is supplied to the handset with little loss. The sidetone prevention circuit 6 is connected to the level indicator 1 described above through an analog switch ASW2.

Analog switch ASWI, analog switch ASW2
is turned ON/OFF by a digital control signal output from a selection means, that is, a control section 5 to be described later.

The level display 11 indicates that the analog switch ASW1 is ON.
When the state is reached, the transmitting signal given from the transmitter 8 is received through the analog switch ASWI, and its level is displayed.At the same time, the analog switch ASW1 is turned off, and the analog switch ASW is turned off.
When 2 is in the ON state, the analog switch ASW
2, it receives a reception signal from the line and displays its level.

Furthermore, the level indicator] 1 is an analog switch ASWI,
When a call is received from the line while all of the ASWs 2 are in the OFF state, the incoming call display means, that is, the incoming call display driver 14 is driven to display the incoming call. Note that details of the configuration of the level indicator 11 described above will be described later.

As already explained, the voice recognition section 12 has its voice input terminal p connected to the transmitter 8 through the analog switch ASWI, and is also connected to the control section 15 and the memory 1B. The voice recognition unit 12 has a function of analyzing the characteristics (pattern) of the voice input from the telephone transmitter 8 through the analog switch ASWI under the control of the control unit 15, and writing data indicating the pattern into the memory 13, and The result of analyzing the input voice is compared with the pattern data stored in the memory] 3, and the result is sent to the control unit 15.
It also has the ability to output to.

The incoming call display driver 14 is configured to cause the level display 1 to display an incoming call when a predetermined drive command signal is output from the control section 15 in response to an incoming call from the line. The details of the configuration of the incoming call display driver 14 will be described later.

The changeover switch 4-2 is provided between the DC power supply V and the control unit CC]5, and is switched by manual operation. The contacts corresponding to the registered CC mode connected and the DC power supply V when closed.
and a contact corresponding to the call CC mode in which the communication between the controller 15 and the controller 15 is disconnected. The hook switch 3-2 is also provided between the DC power supply V and the control section 15, similarly to the changeover switch 4-2.

The CC hook switch 3-2 is a hook switch 3-2 which will be described later.
1 and is designed to turn on in conjunction with the off-hook of the handset.

The keyboard 16 is connected to the control section 15, and is equipped with dial keys and function keys similar to those of a general keyboard, as well as a dialing method selection key 16a. The calling method selection key 16a is used to select between a normal manual dialing method performed by pressing a dial button and a dialing method using voice input. In addition, without using such a manual key, an automatic selection method may be adopted in which manual call is selected if a dial key is pressed after off-hook, and voice input call is selected if there is voice input.

The incoming call detection circuit 7 detects whether or not there is an incoming call from the line, and outputs a predetermined detection signal to the control unit 15 when it detects an incoming call.

The line switch 5 described above includes a line capture transistor 5A inserted into the positive side control line L3 and a drive transistor 5B that drives the line capture transistor 5A. The base of the drive transistor 5B is connected to the plus side communication line L3 via the changeover switch 4-1 and the hook switch 3-1.

The changeover switch 4-1, like the changeover switch 4-2, is configured to perform switching by manual operation, and is designed to operate in conjunction with the changeover switch 4-2. When the selector switch 4-1 is closed, the base of the drive transistor 5B and the hook switch 3-1 are connected to each other.
A contact point corresponding to the registration mode that disconnects between the contact point and the
It has a contact corresponding to a call mode that connects between the base of the drive transistor 5B and the hook switch 3-1 when it is closed. Hook switch 3] C. It is designed to close in conjunction with the off-hook of the handset I-8.9.

The control unit] 5 selects a dialing method (a manual dialing method and a voice input dialing method) according to information given from the keys 16a of the keyboard 16. When the incoming call detection circuit 17 outputs a predetermined detection signal indicating that there is an incoming call, the control unit 15 outputs a drive command signal to the incoming call display driver 14 to cause the level display 11 to display an incoming call. It looks like this. When the changeover switch 4-1.4-2 closes the contact corresponding to the registration mode, the control unit 15 turns the analog switch ASWI into the ON state and the analog switch ASW2 into the OFF state. The level of the audio signal inputted from the device 8 is displayed on a level display 11, and the audio signal is inputted to the audio recognition section 12. The control unit 15 includes a changeover switch 4-1,
4-2 closes the contact corresponding to the call mode, and when the hook switch 3-2 is closed due to the handset being off-hook, the analog switch A
By turning on SW2 and turning off analog switch ASWI, the line is switched to line switch 5.
, the sidetone prevention circuit 6, and the SPN 7 are outputted to the receiver 9, and are also applied to the level display 11 through the analog switch ASW2 to display the level of the received signal.

Furthermore, the control unit] 5 has a built-in dial memory.

This dial memory is stored from the voice recognition section 12 to the control section 15.
It has a plurality of storage areas that are selected according to the verification results output to the system, and dial numbers are stored in these storage areas. That is, when a specific address in the dial memory is selected based on the result of verification by the voice recognition unit 12, the dial number stored in this selected address is read out, and this read dial number is read out. A dial call is made by driving the drive 1 and transistor 5 based on the number.

FIG. 2 is a block diagram showing the functional configuration of the control section 15 shown in FIG. 1.

In FIG. 2, the key input detection means 23 detects and discriminates the input key on the keyboard 16, and outputs the key input data to the dial control means 24, the game 1 control means 25, and the recognition unit control means 26. It has become. The incoming call detection means 22 outputs a predetermined signal to the incoming call display control means 27 when the incoming call detection circuit 17 outputs a predetermined detection signal indicating that there is an incoming call.

The mode setting means 21 sets the mode of the telephone device depending on whether the changeover switch 4-2 closes the contact corresponding to the registration mode or the contact corresponding to the call mode, and sets the mode of the telephone device respectively. The information is outputted to the control means 25, the recognition section control means 26, and the incoming call display control means 27, respectively. The hook detection means 20 detects whether the hook switch 3-2 is closed due to the off-hook of the handset, and controls the gate control means 25 and the like.
The information is output to the recognition section control means 26 and the incoming call display control means 27, respectively.

The recognition section control means 26 identifies whether it is a voice input call or a normal manual call based on the signal output from the key input detection means 23 and outputs it to the dial control means 24. When the recognition section control means 26 recognizes that it is a voice input call based on the signal output from the key input detection means 23, the recognition section control means 26 recognizes the call based on the output signal from the mode setting means 21 and the output signal from the hook detection means 20. The gate control means 25 determines whether the registration mode or the call mode is set, and outputs the determination result to the gate control means 25. The recognition unit control means 26 controls the voice recognition unit 1
2, the memory 13 stores a voice comparison pattern for identifying voice information input from the transmitter 8.
At the same time, the voice signal input from the transmitter 8 is compared with the voice comparison pattern stored in the memory 13. The recognition section control means 26 receives the verification result from the voice recognition section 12 and outputs a predetermined signal to the dial control means 24 and the gate control means 25 based on the verification result. The gate control means 25 controls the ON/OFF states of the analog switches ASWI, ASW2 according to the mode of the telephone device and the state of the hook switch 3-2. For example, hook switch 3-
2 is closed (off-footer state) and if the registration mode is set, the analog switch ASWI is turned on and the analog switch ASW2 is set to the FF state. In addition, if the hook switch 32 is closed and the monthly call mode is set, the analog switch ASW
I is turned off and analog switch ASW is turned off.
2 is turned on. Furthermore, when the hook switch 3-2 is open (on-hook state), the analog switch ASW]. , ASW2 are both turned off.

The dial control means 25 outputs a dial pulse signal to the drive transistor 5B only when it is determined that dial pulse transmission is to be performed based on the key input information output from the key input detection means 23.

When the registration mode is set and the handset is on-hook in the call mode, the missed call display control means 27 controls the incoming call display driver when information indicating that there is an incoming call is provided from the incoming call detection means 22. 14
A drive command signal is output according to each mode.

FIG. 3 is a circuit diagram showing the detailed configuration of the level display 11 and the TG display driver 14 shown in FIG. 1.

In FIG. 3, the amplifier 30 of the level indicator 11 amplifies the voice signal input from the transmitter 8 through the analog switch ASWI or the reception signal applied from the line through the analog switch ASW2, and outputs the amplified signal to the current meter 3. do. Rectifier 3] rectifies the signal amplified by amplifier 30 and provides it to comparators 31-1 to 31-n. The first-stage comparator 31-1 compares the output signal from the rectifier 31 with the reference voltage Vref, and lights up the LED 32-1 when the output signal is higher. The second stage comparator 31-2 compares the voltage signal outputted from the rectifier 31 and dropped by the resistor R1 with the reference voltage ref, and lights up the LED 32-2 when the voltage signal is higher. Similarly, the n-th stage comparator 31-n compares the voltage signal outputted from the rectifier 31 and dropped by the resistors R1 to Rn-1 with the reference voltage ref, and lights up the LED 32-n when the voltage signal is high.

The decoder 34 of the incoming call display driver 14 decodes and outputs the signal to the signal inverting circuit 33 when a drive command signal is output from the control section 5 in response to an incoming call from the line. The signal inversion circuit 33 has the above-mentioned L
It has a plurality of inverter elements 33-1 to 33-n corresponding to ED3'2-1 to 32-n, and each inverter element, when given a decode signal from the decoder 34, inverts the decode signal and outputs the above-described signal. By outputting to the LEDs 32-1 to 32-n, they are turned on.

Further, the inverting circuit 33 is provided with yet another inverter element 35, which is connected to an LED 36 provided within the level display 11 and dedicated to displaying an incoming call. When receiving a call in the call mode, the decoder 34 gives a decode signal to the inverter elements 33-1 to 3B-n and 35 to blink all the LED groups of the level display 11,
When a call is received in the registration mode, a decode signal is applied only to the inverter element 35, and only the LED 36 dedicated to displaying the call blinks.

Next, the operation of the above configuration will be explained mainly with reference to Table 1 below.

First, in the registration mode, selector switch 4-1.4
-2 has closed the contact corresponding to the registration mode, and the handset is off-hook, and the hook switch 3-
2 is closed. The control unit 15 turns on the analog switch ASWI and turns off the analog switch ASW2, as shown in Table 1. As a result, the voice signal input from the transmitter 8 is given to the voice recognition unit 12 which is in standby state for voice registration, and is also given to the level display 11. The level of the input voice is displayed, allowing the speaker to understand the level of the input voice.

In the call mode, the changeover switches 4-1 and 4-2 close contacts corresponding to the call mode. Here, when handset 1 is off-hook, hook switch 3
-1.1-2 is in a closed state, and the line switch 5 captures the office line. In this mode, the control unit 15 normally turns the analog switch ASWI OFF and turns the analog switch ASW2 ON. As a result, the level of the reception signal given from the line is displayed on the level display 11. Further, the level of the transmitting signal that has passed into the receiving system as sidetone is displayed on the level display 11.

When making a voice input dial call in call mode,
After off-hook, the key 16a of the keyboard 16 is pressed. Then, the control unit 15 switches the analog switch ASWI to the ON state and switches the analog switch ASW2 to the OFF state. As a result, the voice recognition unit 12
The level of the audio input is displayed on the level display 11.

Then, when the voice input is finished, that is, the voice recognition unit 12
When the verification result is output from the control unit 15, the control unit 15 switches the analog switch ASWI from the ON state to the OFF state, and switches the analog switch ASW2 from the OFF state to the ON state. As a result, the level display on the level display 11 also returns to the display of the reception level from the line. Therefore, the level of the dial signal can be recognized, and in particular, it can be confirmed whether the dial pulse signal is being output normally.

The display when receiving a call differs depending on the mode. That is, when there is an incoming call in the registration mode, the control unit 15 causes the incoming call display driver 14 to blink only the incoming call display LED 36 of the level display 11. Therefore, even if there is an incoming call, the level display of the input audio will not be disturbed. On the other hand, when there is an incoming call while on-hook (standby for incoming call) in the call mode, the control unit 15 controls the incoming call display driver 14.
All LEDs 35-1 to 23 of the level indicator 11
- 35-n, 36 blink. Therefore, at this time, the incoming call is displayed at an analog level such as a bar graph.

〔Effect of the invention〕

As explained above, according to the present invention, when a speaker registers his or her own voice, the voice input level can be concretely grasped in real time, and especially when the surrounding noise level is high, the noise level Since you can also know the size of the sound at the same time, you can adjust the audio input level appropriately and register the sound in good condition.
It is possible to check whether the level of the transmitting signal is appropriate or not, and by displaying the level of the receiving signal, it is possible to prevent the caller from hanging up before the other party finishes speaking. It is possible to provide a telephone device that does not have any problems.

FIG. 3, which is a block diagram showing the functional configuration of the control section 15, is a circuit diagram showing the detailed configuration of the level display 11 and the incoming call display driver 14 shown in FIG.

8...Telephone, 11...Level display, 12...
Voice recognition unit, 13...Memory, 14...Incoming call display driver, 15...Control unit, ASWI, ASW2...
analog switch.

Claims (1)

[Claims] 1. The input voice from the transmitter is registered in advance, and the dial call can be automatically made to the telephone line based on the comparison between this and the input voice from the transmitter at the time of dialing. What is claimed is: 1. A telephone device comprising level display means for receiving an input audio signal from the transmitter and displaying the level. 2. The telephone device according to claim 1, wherein the level display means is further configured to receive an incoming call signal input from the telephone line, and at the time of the registration and the voice input at the time of dialing, the level display means is configured to receive a call receiving signal input from the telephone line, and when the voice input is performed at the time of the registration and the dialing. A telephone device comprising a selection means for selectively supplying the input voice from the telephone line and the received voice from the telephone line during a call to the level display means. 3. The telephone device according to claim 1, further comprising an incoming call display means for driving the level display means in response to an incoming call signal from the telephone line, and the incoming call display means drives the level display means at the time of registration. Telephone equipment configured not to drive means.