KR19990053612A - Automatic voice guidance device - Google Patents

Abstract

The present invention automatically recognizes the user's voice when the general user requests a telephone number inquiry to the 114 information telephone number, and automatically informs the user of the desired telephone number, and the telephone number inquired by the information bureau matches If not, the automatic voice guidance device that can directly call the operator to inquire the desired phone number, the line interface and the call unit, the voice recognition unit for recognizing the user's voice and the digital voice signal A voice number database and a phone number database that stores the local number and the conversion part to be converted to It consists of a voice guidance unit consisting of a voice output circuit for the purpose of By recognizing the last name, the user can automatically call the phone number that he / she wants by using the telephone number database of the information bureau. When the call volume increases, the average user spends a lot of time until the call is connected with the receptionist. It can alleviate the hassle of waiting and relieve the burden of the attendant on heavy work due to the large number of inquiries.

Description

Automatic voice guidance device

The present invention relates to an automatic voice guidance device, and more specifically, when a general user requests a telephone number inquiry with 114 guide telephone number, the voice of the user is automatically recognized and the user automatically notifies the desired telephone number, and inquires. If a phone number and the phone number guided by the guide station does not match, it relates to an automatic voice guide device that allows you to directly call a receptionist and ask for the desired phone number.

To inquire the telephone number, the general user presses 114 on the keypad of the telephone and talks to the receptionist at the information office to receive the desired telephone number.

A block diagram for showing the overall configuration of a conventional guide telephone apparatus is shown in FIG.

As shown in Fig. 1, a conventional guide telephone apparatus includes a dialing keypad 1, a DTMF signal generator 2 for generating a DTMF signal corresponding to the keypad 1, and a voice circuit 8 in the telephone apparatus. By receiving a signal output from the DTMF signal generator (2) and making a call with the user by the signal output from the telephone station 9 and the telephone station 9 which connects to the telephone number corresponding to the keypad 1 pressed by the user A telephone number database (11) and a guide station installed in a guide station (10) and a guide station (10) for guiding a user's desired phone number and storing a phone number corresponding to a public place, business name, and name of the area. It is installed in (10) and consists of a voice guide unit 12 for guiding the phone number inquired by the user by voice.

The above-described DTMF signal generator 2 is provided with a counter decoder 4 and a counter decoder 4 for receiving the output of the keypad 1 and the clock of the oscillator 3 and outputting a high frequency digital code and a low frequency digital code. An amplifier for amplifying the analog signals output from the D / A converters 5 and 6 and the D / A converters 5 and 6 which receive the high frequency digital codes and the low frequency digital codes that are output, and convert them into analog signals. It consists of 7).

The operation of the conventional guide telephone apparatus having the above-described configuration will be described in detail.

When the user presses 114 using the dialing keypad 1, the counter decoder 4 of the DTMF signal generator 2 decodes the clock of the oscillator 3 and the signal output from the keypad 1, and the number pressed by the user. Outputs the frequency digital code corresponding to

The frequency digital code output from the counter decoder 4 is divided into a high frequency digital code and a low frequency digital code and converted into an analog signal via the D / A converters 5 and 6. This converted analog signal is connected to the amplifier 7 and amplified and output. This synthesized amplified signal is transmitted to the telephone station 9 through the audio circuit 8 in the telephone apparatus.

The telephone station 9 separates and encodes the synthesized amplified signal to detect which numeric key is the keypad 1 pressed by the user, and connects with the subscriber's telephone line corresponding to the number to control the call.

When the telephone is connected to the guide station 10 by the signal of the telephone station 9, the guide of the guide station 10 receives a call and speaks with the user to inform the guide of a public place, business name or name to inquire.

When the guide detects a phone number corresponding to a public place, a business name, or a name inquired by the telephone number database 11, the guide person automatically outputs a guide message corresponding to the telephone number inquired by the voice guidance unit 12. do.

However, in the conventional information telephone apparatus which performs the configuration and operation as described above, when the user cannot make a phone call due to the congestion of the telephone, the user has to retry several times and wastes time caused by waiting a lot of time. There is a problem that results.

In addition, the user's inquiries are congested due to the heavy burden of the need to perform a large number of inquiries call guidance and the problem of accurate error occurs because the guide guides the inquiries of many users in a short time. .

Therefore, the present invention has been made to solve such a problem, an object of the present invention is to recognize the voice of the general user, the automatic voice guide device that can accurately guide the phone number inquired through the telephone number database in the guide station To provide.

Another object of the present invention is that if the telephone number inquired by the general user and the telephone number guided by the guide station do not match, the general user selects a designated button (for example, # 0) of the telephone to make a direct call with the receptionist. It is to provide an automatic voice guidance device that can be informed of the number.

The present invention for achieving the above object is an automatic voice guide device for informing the telephone number by the operator's guidance, connected to the public telephone network through a telephone line and ring and call voice signals between the telephone and public telephone network Line interface unit for interfacing

A voice communication unit and a voice recognition unit for recognizing a voice signal transmitted from the communication unit, and a communication unit connected to the line interface unit and processing a voice signal and a DTMF signal when hooking off. A line number database, the line interface and the conversion unit, which are connected to each other, a telephone number database that stores a telephone number corresponding to a public place, a business name, a name, etc. And a voice guidance for automatically guiding the telephone number inquired by the user under the control of the main control unit and the main control unit, which is connected to the telephone number database and receives a signal transmitted from each component to control the operation of the entire system. It is characterized by consisting of wealth.

1 is a block diagram of a conventional guide telephone apparatus.

Figure 2 is a block diagram of the automatic voice guide device according to the present invention.

3 is a flowchart of an automatic voice guide apparatus according to the present invention.

<Explanation of symbols for main parts of the drawings>

20: line interface unit 21: call unit

22: speech recognition unit 23: conversion unit

24: phone number database 25: subject control

26: voice data ROM 27: voice output circuit

28: voice guidance unit 29: DTMF receiving unit

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

A block diagram for showing the overall configuration of the automatic voice guide apparatus according to the present invention is shown in FIG.

As shown in FIG. 2, the automatic voice guidance apparatus is connected to a public telephone network through a telephone line, and has a line interface 20 and a line interface 20 for interfacing ring signals and call voice signals between the telephone and the public telephone network. Is connected to the call unit 21 and the call unit 21 for processing the voice signal and DTMF signal when the user picks up the phone or using the speakerphone, and interprets the voice signal transmitted from the call unit 21 And a speech recognition unit 22 for converting into a character string by combining with a patterned database.

The conversion unit 23 is connected to the voice recognition unit 22 and consists of an A / D converter for converting an analog signal input to the voice recognition unit 22 into a digital signal, and the public place, name, name of the local It is connected to a telephone number database 24, a line interface 20, a conversion unit 23, and a telephone number database 24, which store telephone numbers, and the like. It consists of a main control section 25, which is programmed to control the driving, and a voice guide section 28 for automatically guiding the telephone number inquired by the user under the control of the main control section 25.

The voice guide unit 28 controls the voice data rom 26 under the control of the voice data rom 26 and the main control unit 25 for storing the guide voice to inform the user of the telephone number detected in the telephone number database 24. Voice output circuit 27 for transmitting the guide voice stored in the call unit 21.

In addition, when the user is connected to the call unit 21 and the guide number is wrong during the inquiry, the user receives a DTMF signal corresponding to the button pressed by the user to make a direct call with the guide and transmits it to the main control unit 25. It is comprised by the DTMF receiving part 29.

Hereinafter, the operation of the automatic voice guide device of the present invention having the above configuration will be described in detail.

3 is a flowchart illustrating the overall operation of the automatic voice guidance apparatus according to the present invention.

In step 302, when the user picks up the phone or presses the speakerphone, the hook switch of the phone is turned off to be in a callable state. If the user does not operate the phone, the flow proceeds to step 304, where the hook switch is turned on in the standby state.

In step 306, if the user presses 114 by using the keypad when the telephone is switched off and the phone is switched on, the DTMF signal corresponding to 114 is output and sent to the telephone company. The corresponding DTMF signal is output and performs the role of a general telephone through steps 308 and 310.

In step 312, the DTMF signal transmitted in step 306 is input to proceed with the call to the guide station through the telephone line. In step 314, when the user and the guide station are connected to the telephone line, the voice guidance message stored in the guide station is transmitted. do. For example, a message is sent to "114 Call Information Center. Please tell us the name of the public place, business name or name of the area you are inquiring about."

In step 316, the user inputs a public place, a business name, a name, etc. of a region to be inquired by voice.

In operation 318, the voice signal input by the user is recognized by the voice recognition unit 22 and passed through the conversion unit 23 for converting the recognized analog signal into a digital signal, and the converted signal is transmitted to the main control unit 25. . The main control unit 25 receives the transmitted signal and retrieves the telephone number inquired by the user from the telephone number database 24 connected to the main control unit 25.

In step 320, the phone number retrieved from the phone number database 24 is detected, and the phone number retrieved to the user is automatically notified to the user by driving the voice output circuit 27 with a guide message previously stored in the voice data ROM 26. give.

In step 322, when the guide number listened to by the user is not the desired telephone number, the user presses the 0 key on the keypad of the telephone to send a signal that he / she wants to talk directly to the receptionist. The DTMF receiver 29 detects whether the DTMF signal is detected or not by pressing the 0 key, and determines whether to make a telephone connection to the receptionist. At this time, if the user does not press the 0 key, the automatic voice guidance ends.

In step 324, under the control of the main control unit 25, the DTMF signal corresponding to the 0 key detected by the DTMF receiver 29 is input and connected to the telephone line of the guide so that the user can directly talk to the guide. In step, the caller operates to receive a desired phone number by talking to a receptionist.

As described above, according to the automatic voice guide device according to the present invention, by recognizing the voice of a general user and notifying the telephone number automatically inquired by using the telephone number database of the guide station, the telephone number desired by the user, In this surge, general users can alleviate the inconvenience of having to wait a lot of time until the call is connected to the guide and relieve the burden of the guide who performs heavy work according to a large number of inquiries.

In addition, if the telephone number guided by the exchange office and the telephone number inquired by the general user do not match, select the designated button (for example, ＃ 0) to speak directly with the receptionist to receive the correct telephone number. It works.

Claims (3)

In the automatic voice guidance device that informs the telephone number by the operator's guidance, A line interface unit 20 connected to a public telephone network through a telephone line and interfacing ring signals and call voice signals between the telephone and the public telephone network; A communication unit 21 connected to the line interface unit 20 to process a voice signal and a DTMF signal at the time of hooking off; Is connected to the call unit 21, and the voice recognition unit 22 for recognizing the voice signal transmitted from the call unit 21 and A conversion unit 23 connected to the voice recognition unit 22 and for converting an analog signal input to the voice recognition unit 22 into a digital signal; A telephone number database (24) that stores telephone numbers corresponding to local public places, trade names and names; A main control unit 25 connected to the line interface 20, the conversion unit 23, and the telephone number database 24 and programmed to control the operation of the entire system by receiving a signal transmitted from each component unit; Under the control of the main control unit 25, an automatic voice guide device comprising a voice guide unit 28 for automatically guiding a telephone number inquired by a user. The voice guide unit 28 of claim 1, wherein the voice guide unit 28 comprises: a voice data ROM 26 for storing a voice guide for informing a user of a phone number detected in the phone number database 24; And an audio output circuit (27) for transmitting the guide voice stored in the voice data ROM (26) to the call unit (21) under the control of the main controller (25). According to claim 1, When the user is connected to the call unit 21 and the guide number is wrong during the inquiry to receive a DTMF signal corresponding to the button pressed by the user to make a direct call with the receptionist The main control unit ( 25) DTMF receiver 29 for transmitting to the automatic voice guide apparatus characterized in that it comprises.