JPH0983627A - Key telephone system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To execute the sound dialing having a high recognition degree by means of a hands-free call. SOLUTION: A key telephone main device 10 and a key telephone set with hands-free sound dialing function 20, which is connected to the main device 10, are provided. When a control part 203 and a control part 104 judge a hands- free sound dial mode at the time of making a sound dial call from a hands-free circuit part 212, a compulsory speech transmission control signal is outputted from the control part 203 to a hands-free circuit part 212 and the hands-free circuit part 212 is set to be a compulsory speech transmission state for prescribed time. A sound dial signal inputted from the microphone 214 of the hands- free circuit part 212 is converted into a digital signal in such a state, is transmitted to and analyzed in a sound identification part 103. Data identical to analyzed data is retrieved from a data accumulation part 105 and data on a pertinent destination is displayed on a display part 205. The dial signal is emitted through a main wire interface part 101 with the operation of an operation part 204.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a key telephone device, and more particularly to a key telephone device capable of dialing by voice recognition in a hands-free call.

[0002]

2. Description of the Related Art Conventionally, this type of key telephone device has been provided with a voice recognition section, a dial storage memory section, a display section for displaying retrieved dials, an operation section (key), and a dial sending section. Verbally specifies the dialing party for the extension of the telephone system, retrieves the corresponding dial from the memory section for storage, displays it on the display section, and operates the operation section to send the dial. Has become.

FIG. 2 shows the configuration of a conventional button telephone device with a voice dial function. In FIG. 2, reference numeral 30 is a digital button telephone main device (hereinafter referred to as button telephone main device), and 40 is a digital button telephone with an analog hands-free circuit (hereinafter referred to as button telephone).

The key telephone main unit 30 is a station line interface section 3 for interfacing with a station line circuit such as NTT.
01, a digital extension interface unit 302 for interfacing with the key telephone 40, a voice recognition unit 303 for recognizing a voice for dialing, and a control unit (CPU) for controlling the key telephone main unit 30 and the key telephone 40.
304, and a data storage unit 305 that stores data such as dials.

The key telephone 40 is a key telephone main unit 3
Communication G / A (communication control unit) connected to the digital extension interface unit 302 of 0 through the coupling transformer 401
402, and a control unit (microcomputer) 403 connected to this communication G / A 402 and controlling the entire key telephone set 40,
An operation unit 404 having a key matrix structure connected to the control unit 403, a liquid crystal display unit 405 connected to the control unit 403 for displaying a dial or the like to be transmitted, a communication G / A
CODEC (coding and decoding) 40 connected to 402
6, and a communication path selector switch 407 controlled by a handset / hands-free switching signal from the control unit 403,
A handset 41 connected to the CODEC 406 via the 408 and the reception amplifier 409 and the transmission amplifier 410.
1 and a CODEC 406 with a speech path selector switch 407,
An analog hands-free circuit section 412 connected via 408 and controlled by a control signal from the control section 403.
And a speaker 413 and a microphone 414 connected to the analog hands-free circuit unit 412.

Next, the operation of the above conventional example will be described. In FIG. 2, when dialing by voice, a voice for dialing, for example, a person's name of a callee stored in the data storage unit 305 is output from the microphone 414 connected to the handset 411 or the hands-free circuit unit 412. When input, this audio signal is CODEC
After being converted into a digital signal by 406, the communication G
It is sent to the voice recognition unit 303 through the A402 and the digital extension interface unit 302. This voice recognition unit 3
In 03, the data storage unit 305 is searched, and if there is data that matches the data stored in the data storage unit 305, the dial of the corresponding destination is displayed on the display unit 405, and then the operation unit 404 is operated. As a result, the dial signal is transmitted through the office line interface unit 401.

[0007]

However, in the above-mentioned conventional button telephone device, although the voice recognition through the handset is high, the voice recognition in the half-duplex hands-free call is the half-duplex system. Therefore, as a countermeasure against howling and the cutoff of the earpiece, the call circuit must be designed with priority on the earpiece during standby, and the voice dial has a low degree of recognition due to the earpiece being cut off and can be commercialized. There was a problem that I could not.

The present invention solves such a conventional problem, and an object of the present invention is to provide a button telephone device which enables voice dialing by a hands-free call with a high degree of recognition.

[0009]

In order to achieve the above object, a key telephone device of the present invention is provided with a station line interface section,
A key telephone main unit having an extension interface unit, a voice recognition unit for recognizing a voice dial, and a control unit for controlling the entire device, and a communication control unit, a CODEC, and a handset / hands-free communication circuit in the extension interface unit. A hands-free circuit unit having a microphone and a speaker for hands-free call connected via the control unit, and controls the whole on the basis of a control signal from the control means for the key telephone main unit. And a button telephone having a control means for controlling the hands-free circuit section in a forced transmission state for a certain period of time when performing a voice dial signal input from the hands-free circuit section by the voice recognition means. The feature is that transmission is performed from the line interface unit.

Further, according to the present invention, the destination of the voice dial recognized by the voice recognition means is displayed on the display unit provided in the button telephone, and the recognized voice is operated by the operation of the operation unit provided in the button telephone. It is characterized by making a dial.

[0011]

Therefore, in the present invention, when voice dialing is performed in a hands-free call, the hands-free circuit section is forcibly transmitted for a certain period of time to stably send the voice for dialing to the voice recognition means. It is possible to improve the recognition degree of the dial.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows the configuration of a button telephone device with a hands-free voice dial function according to the present invention.

In FIG. 1, 10 is a digital key telephone main unit (hereinafter referred to as a key telephone main unit), and 20 is a digital button telephone with an analog hands-free circuit (hereinafter referred to as a button telephone).

The key telephone main unit 10 is a station line interface section 1 for interfacing with a station line circuit such as NTT.
01, a digital extension interface unit 102 that performs digital communication with the key telephone 20, a voice recognition unit 103 that recognizes a voice for dialing, a control unit (CPU) that controls the key telephone main device 10 and the key telephone 20.
104 and a data storage unit 105 that stores data such as dials.

The key telephone 20 is a key telephone main unit 1.
No. 0 digital extension interface unit 102 via a coupling transformer 201 and performs digital communication between the key telephone main unit 10 and the key telephone 20.
(Communication control unit) 202, control unit (microcomputer) 203 connected to this communication G / A 202 and controlling the entire key telephone set 20 based on control data from the key telephone main unit control unit 104, and this control unit An operation unit 204 having a key matrix configuration connected to 203 and a control unit 203
The liquid crystal display unit 205 that is connected to the display unit for displaying dials and the like, and the CODEC connected to the communication G / A 202.
(Encoding / decoding device) 206, speech path selector switches 207 and 208 controlled by a handset / hands-free switching signal from the control unit 403, and a reception amplifier 209.
And the handset 211 connected to the CODEC 206 via the transmission amplifier 210, and the handset 211 connected to the CODEC 206 via the communication path selector switches 207 and 208, and controlled by the forced transmission control signal from the control unit 203 during voice dialing. Analog hands-free circuit section 212,
A speaker 213 and a microphone 214 connected to the analog hands-free circuit unit 212 are provided.

Next, the operation of this embodiment will be described.
In FIG. 1, when voice dialing is performed with the handset 211, it is performed in the same manner as in the case shown in FIG.

Also, the analog hands-free circuit section 212
In the case of making a voice dial call from the control unit 203 and the control unit 104 when an extension dial tone is received from the standby by the speaker 213 or an operation for performing a voice dial in a hands-free call is performed. It is determined that the voice dial mode is free, and accordingly, the control unit 203 outputs a forced transmission control signal to the analog hands-free circuit unit 212 to put the analog hands-free circuit unit 212 in the forced transmission state for a certain period of time. In this state,
A voice dial signal such as a person's name stored in the data storage unit 105, which is input from the microphone 214 of the analog hands-free circuit unit 212, is converted into a digital signal by the CODEC 206, and then is transmitted through the communication G / A 202 and the digital extension interface unit 102. Voice identification unit 1
03 and analyze. The data storage unit 105 is searched based on the analyzed data, the destination of the corresponding data retrieved from the data storage unit 105 is displayed on the display unit 205, and then the operation unit 204 is operated to display the displayed destination. A dial signal is transmitted to the station through the office line interface unit 101.

As described above, according to the above-described embodiment, when voice dialing is performed in a hands-free call, the analog hands-free circuit unit is controlled to be in the forced transmission state for a certain time at the time of making a call, so that stable dialing voice is transmitted. The voice recognition rate in the voice recognition unit during hands-free calls is improved, and the same level of recognition as when making a voice dial call when using a handset without getting cut off is obtained, making voice dialing by hands-free call easy. A key telephone device that can be realized can be provided.

[0019]

As is apparent from the above embodiment, the present invention has a structure in which the analog hands-free circuit section 212 is controlled to be in the compulsory transmission state for a certain period of time when making a voice call during a hands-free call. , Stable voice for dialing can be sent, the voice recognition rate in the voice recognition unit during hands-free call is improved, and the same level of recognition as when dialing with voice dial when using a handset is obtained without breaking the talk. There is an effect that it is possible to provide a button telephone device that can easily realize voice dialing by hands-free calling.

[Brief description of drawings]

FIG. 1 is a schematic block diagram of a button telephone device with a hands-free voice dial function according to an embodiment of the present invention.

FIG. 2 is a schematic block diagram of a conventional button telephone device with a voice dial function.

[Explanation of symbols]

 10 button telephone main device 101 office line interface unit 102 digital extension interface unit 103 voice recognition unit 104 control unit 105 data storage unit 20 button telephone 201 coupling transformer 202 communication G / A 203 control unit 204 operation unit 205 display unit 206 CODEC 207, 208 Changeover switch 209 Receiver amplifier 210 Transmitter amplifier 211 Handset 212 Hands-free circuit section 213 Speaker 214 Microphone

Claims (2)

[Claims] 1. A key telephone main unit having a station line interface unit, an extension interface unit, a voice recognition unit for recognizing a voice dial, and a control unit for controlling the entire device; and a communication control unit for the extension interface unit and the extension interface unit. COD
A hands-free circuit unit having a microphone and a speaker for hands-free communication connected through an EC and a handset / hands-free communication circuit, and controls the whole based on a control signal from the control means for the key telephone main unit. Along with a key telephone having a control means for controlling the hands-free circuit unit in a forced transmission state for a certain period of time when performing voice dialing in a hands-free call, a voice dial signal input from the hands-free circuit unit is provided. A button telephone device characterized in that it is recognized by the voice recognition means and is transmitted from the station line interface section. 2. The destination of the voice dial recognized by the voice recognition means is displayed on a display unit provided on the key telephone, and the recognized voice dial is transmitted by operating an operation unit provided on the key telephone. The key telephone device according to claim 1, wherein