JP2000069140A - Telephone set with voice recognition function - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a telephone set with a voice recognition function capable of changing a gain value by an operation environment and a condition. SOLUTION: In this telephone set with the voice recognition function provided with a voice input part 2 for inputting the voice of a speaker and outputting electric voice signals, an amplification factor variable amplification part 9 for amplifying and outputting the voice signals, a voice recognition part 11 for inputting the voice signals and recognizing the voice of the speaker and a control part 12 for controlling the prescribed processing operations of registration, recognition, read, display and the like, based on the voice signals and signals from the voice recognition part 11, an operation part 7 is provided and the control part 12 controls the amplification factor of the amplification part 9 to an optional value by the operation of the operation part 7.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a telephone with a voice recognition function that recognizes voice input by a human and operates appropriately based on the voice.

[0002]

2. Description of the Related Art Conventionally, telephones that operate by voice recognition have been proposed. For example, Japanese Unexamined Patent Publication No. Sho 61-144157 discloses a voice dial device comprising a voice registration feature amount extraction unit, a recognition pattern matching unit, and a voice output voice synthesis unit for voice recognition dialing. ing. However, in such a device, the frequency component is usually detected in the speech recognition, so that the signal can be recognized within a certain range with respect to the magnitude of the signal, so that the speaker gain for the speech recognition operation is not considered much. Absent.

[0003]

However, in actuality, there is a problem of a dynamic range of an A / D converter and an amplifier in the device, and a noise due to an influence of a power supply and other circuits. That is, there is an appropriate gain value for obtaining a good recognition operation. On the other hand, some users have a loud voice, and in a noisy environment, it is necessary to make a loud voice in order to secure S / N. However, in a quiet environment, it is difficult to make a loud voice because of shame.

In order to perform the voice recognition operation as described above,
The use environment and conditions of the apparatus, and the voice level input to the voice input unit by the user greatly fluctuate.

An object of the present invention has been made in view of the above problems, and an object of the present invention is to provide a telephone with a voice recognition function capable of changing a gain value according to an operating environment and conditions.

[0006]

SUMMARY OF THE INVENTION In order to solve the above problems, the present invention provides a voice input unit for inputting a voice of a speaker and outputting an electrical voice signal, and amplifying and outputting the voice signal. Amplification unit with a variable amplification factor, a voice recognition unit that receives the voice signal and recognizes the voice of the speaker, and registers, recognizes, and reads based on the voice signal and the signal from the voice recognition unit. A telephone with a voice recognition function comprising a display and a control unit for controlling other predetermined processing operations, an operation unit is provided, and the operation of the operation unit causes the control unit to set the amplification factor of the amplifier unit to an arbitrary value. It is configured to be controllable.

Therefore, by providing a gain setting function for the voice recognition function by the key operation of the user, the voice recognition function can be used in a wide range.

[0008]

Embodiments of the present invention will be described below.

FIG. 1 is a block diagram of a main part of a telephone according to the present invention.

In the portable telephone 1 shown in FIG. 1, when talking with the other party, a voice signal is transmitted from a voice input unit 2 (microphone) to which a voice is input to a voice communication circuit 3, and the voice signal is further transmitted from the voice communication circuit 3. The signal is sent to the high-frequency unit 5, and the radio is transmitted from the antenna 4 to the nearest base station toward the other party.

When a response from the other party is received by the antenna 4 by radio from the base station, the received signal is sent from the high frequency unit 5 to the audio output unit 6 (speaker) via the communication circuit 3 and
The voice of the response is heard from the voice output unit 6 to the speaker wearing the ear.

When calling the other party, the operation unit 7
A call can be made by pressing the dial number with the key of. When the other party's nominal name is registered in the nominal name pattern storage section 8, the user speaks the nominal name to the voice input section 2. By doing so, it is possible to automatically make a call to the other party by the dial circuit of the communication circuit 3.

In this case, the audio signal from the audio input unit 2 is amplified by the amplifier unit 9 and the A / D unit (analog /
The digital signal is converted from an analog signal to a digital signal by a digital conversion device 10, and the voice recognition unit 11 that has received the digital signal recognizes the input voice, and converts the voice into the nominal name registered in the nominal name pattern storage unit 8. And select the same from the collation.

When the voice recognition unit 11 outputs a signal related to the nominal name to the control unit 12, the control unit 12 selects one of the dial numbers registered in the dial number storage unit 13 in advance so as to correspond to the nominal name. By calling the associated dial number and sending it to the dial circuit of the call circuit 3, a call is automatically made.

The portable telephone 1 has a recording / reproducing unit 14 composed of an IC memory or the like, and can record a voice during a call or in an answering machine mode and reproduce it later.

Here, in the telephone according to the present invention, the operation unit 7 is provided so as to be operable from outside the telephone 1, and the gain of the amplifier unit 9 can be controlled by the operation unit 7. If there is no noise in the voice input to the voice input unit 2, the digital signal from the A / D unit 10 is correctly recognized by the voice recognition unit 11 for the name of the voice, and the control unit 12 dials the name. The correct dial number of the other party is called from the number storage unit, and it is possible to make a call to the correct party by the dial circuit of the call circuit 3. However, when it is found that noise is mixed in the input voice, or when it is used under environmental conditions where there is a possibility of such noise, the gain value is set to an arbitrary value by operating the operation unit 7. Prevent the effects of noise. That is, the control unit 12 outputs a control signal to the amplifier unit 9 to control the gain so as to reduce the gain, so that the voice recognition unit 11 can easily recognize the voice in a clearer state. When the surroundings are noisy, the operation unit 7 is operated so as to decrease the gain, and to increase the gain in a quiet environment.

[0017]

As described above, according to the present invention, a telephone with a voice recognition function can be used in a wide range of environments by providing a telephone with a voice recognition function with a gain setting function.

[Brief description of the drawings]

FIG. 1 is a block diagram of a main part of a telephone according to the present invention.

[Explanation of symbols]

 1: Mobile phone 2: Voice input section 3: Communication circuit 4: Antenna 5: High frequency section 6: Voice output section 7: Operation section 8: Nominal name pattern storage section 9: Amplifier section 10: A / D section 11: Voice recognition Unit 12: Control unit 13: Dial number storage unit 14: Recording / playback unit

Claims (1)

[Claims] An audio input section for inputting a voice of a speaker and outputting an electric audio signal, an amplifier section for amplifying and outputting the audio signal and having a variable amplification factor, and receiving the audio signal. A voice recognition unit that recognizes the voice of the speaker, and a control unit that controls registration, recognition, reading, display, and other predetermined processing operations based on the voice signal and a signal from the voice recognition unit. A telephone having a voice recognition function, wherein the operation section is provided, and the control section can control the amplification factor of the amplifier section to an arbitrary value by operating the operation section.