KR20020020615A - Voice identification telephone number guidance and auto-connecting method and system therefor - Google Patents

Abstract

The present invention relates to a voice recognition telephone number guide and automatic connection method and a system thereof. The method of the present invention comprises the steps of transmitting a voice received from a user to a main server by making a file in the interface device, and the voice received from the main server. Recognizing the file as an LVR and converting the text into a character; searching for a keyword using the discourse technique in the main server; and a database including a phone book in the main server with the found keyword. Searching, and the phone number to be retrieved from the main server using the RealSpeak to send a voice file to the interface, and converting the voice file received from the interface device to a voice and transmitting to the user. At this time, if you want to make a phone call, the main server automatically dials the searched phone number. According to the present invention, by replacing the personnel of the receptionist with a computer, it is possible to reduce the accessories, places, management personnel, etc. accordingly, and also because the waiting time for the call with the receptionist does not occur, so The effect of using a number guidance system can be achieved.

The features of the present invention can be operated in accordance with the language characteristics of the world, such as American English, British English, Japanese, Chinese, German as well as Korean.

Description

Voice identification telephone number guidance and auto-connecting method and system therefor}

The present invention relates to a telephone number guide and automatic connection method and system for guiding a telephone number through voice recognition technology, and more particularly, a part for searching a desired telephone number after receiving a question made by a telephone operator. The present invention relates to an automated telephone number guide and automatic connection method and system for automatically executing the program and automatically connecting the same.

In the conventional telephone number guide system, when a user makes a phone call, a receptionist listens to a place or person (hereinafter referred to as a keyword) that wants to know the telephone number through a conversation with the user, and searches for the keyword directly on a computer. This is a system for informing a user through an Automatic Response System (ARS).

In addition, when making an extension call in the organization, refer to the extension number booklet or the extension number table.

However, in the conventional phone number guide system, each user must make a call with the guide, so when many users use the guide system at the same time, there is a problem of waiting time waiting for a call with the guide and the cost of necessity of manpower. And management has been a problem.

In addition, there has been the inconvenience of having to receive a phone number through a receptionist and call back.

And if you make an internal call in your organization, there is a problem that the person who makes the call cannot make a call if they do not have an extension number booklet or a telephone number or do not know the direct number.

An object of the present invention is to solve the above problems, the object of the present invention is to recognize the voice of the user to the LVR engine and automatically search for the phone number through the discourse technology, RealSpeak informed according to the user's intention The present invention provides an improved telephone number guide and automatic connection method and system for connecting a call to a corresponding number.

1 is a block diagram showing a conventional telephone number guide system.

2 is a block diagram illustrating a phone number guide and automatic connection system according to the present invention.

Figure 3 is a block diagram showing the internal module of the interface device of the telephone number guide and automatic connection system according to the present invention.

Figure 4 is a block diagram showing the internal module of the main server of the telephone number guide and automatic connection system according to the present invention.

5 is a flowchart showing the overall process in the telephone number guide and automatic connection system according to the present invention.

6 is a diagram illustrating an example of a keyword search script used in the present invention.

According to an aspect of the present invention, a voice recognition telephone number guide method for recognizing and processing a user's voice according to the present invention comprises the steps of transmitting a voice received from the user to a main server in a file in the interface device, the main server Recognizing the voice file received from the LVR engine and converting the text into a character, Finding a keyword (Keyword) using a discourse technique for the series of Digit values converted into a text in the main server, and the found keyword Searching the database containing the phone book in the main server; transmitting the searched phone number to the interface by using RealSpeak in the main server; and transmitting the voice file received from the interface device to the voice. And sending it to the user. It also includes a step of automatically calling the main server with the searched phone number or a step of recognizing a number that is a phone number and dialing the number accordingly.

In addition, according to another aspect of the present invention, the voice recognition telephone number guide system for recognizing and processing the user's voice according to the present invention is a means for transmitting the voice received from the user to the main server to make a file in the interface device, and Means for recognizing the voice file received from the main server by the LVR engine and converting the text file into text; means for finding a keyword using a discourse technique for a series of digit values converted from the main server into text; Means for searching the database containing the phone book in the main server, means for transmitting the searched phone number to the interface by using RealSpeak in the main server, and transmitting it to the interface, and the voice file received from the interface device. Means for transmitting the voice to the user. It also includes a means for automatically calling the main server from the retrieved telephone number or a means for recognizing a number that is a telephone number and dialing the number accordingly.

Hereinafter, the present invention will be described in more detail with reference to the drawings.

1 is a block diagram showing a conventional telephone number guide system.

Conventional telephone directory guidance system is a Private Branch Exchange (PBX, 100) that connects the user's phone to each guide, a telephone operator who receives the user's call and retrieves the phone number you're looking for ( Operator (110), the terminal 120, which is a means for the telephone operator to retrieve the telephone number, the database server 130 in which the telephone number data is stored and connects the terminals 120 and the database server 130. The network 140 is being included. The network 140 may use the TCP / IP protocol. How to use the guide system is as follows. When the user who wants to use the telephone exchange service calls the telephone number guide system using the telephone 150, the user connects to the PBX 100 of the telephone number guide system through a public switched telephone network (PSTN) 160. do. The PBX 100 itself exchanges the incoming call to the telephone exchange guide 110, the guide 110 is a place or person (hereinafter referred to as 'keyword') that you want to know the phone number through a dialogue with the user After recognizing and searching the database server 130 as a keyword through the terminal 120, the user is informed of the result through an automatic voice response system (ARS) (not shown).

2 is a block diagram illustrating a phone number guide and automatic connection system according to the present invention.

The telephone number guide system according to the present invention is a private branch exchange (PBX, 230) that connects the user's phone to the interface device 200, interacts with the user and interfaces between the main server 210 and the PBX 230 The interface device 200 to play a role, a voice recognition module for recognizing the voice received from the interface device 200 to change the text and a search module to find a keyword in the changed text and to search the keyword in the database server 220 and A main server 210 including a voice synthesis module for converting a searched phone number into a voice and an automatic phone connection module for automatically making a call, a database server 220 storing phone number data, and the interface device 200. And a network 240 connecting the main server 210 and the database server 220. The network 140 may use the TCP / IP protocol.

Figure 3 is a block diagram showing the internal module of the interface device of the telephone number guide and automatic connection system according to the present invention. The interface device 200 includes an exchange module 300 for allocating a telephone line and a formatting module 310 for modifying a user's voice according to a protocol so that the voice can be recognized by the main server.

The exchange module 300 serves to maintain the location of the user who dialed when there are multiple ports (junctions).

The format module 310 transforms the user's voice into a file to be recognized by the main server 210 and transforms the voice file received from the main server 210 to be heard by the user. Since the voice support board used in the interface device 210 has a different specification for each company, it should be uniformly modified to be recognizable by the main server 210.

Figure 4 is a block diagram showing the internal module of the main server of the telephone number guide and automatic connection system according to the present invention. When the main server 210 receives the voice from the interface device 200, the voice recognition module 400 recognizes the voice and changes it into a text, and searches for a keyword in the changed text and searches the keyword in the database server 220. Module 410, a voice synthesis module 420 for changing the retrieved phone number into voice, and an automatic phone connection module 430 for automatically dialing the retrieved phone number.

The voice recognition module 400 analyzes the received voice and transmits a voice to the user through the interface device 200 informing the user that the voice is not recognizable and to try again. When the received voice is recognized, the voice is changed to a text and transmitted to the search module 410. The voice recognition module 400 may be implemented using LV (Large Vocabulary Recognition) engine.

The search module 410 finds a keyword in the text received from the voice recognition module 400. If the keyword is not found, a voice is transmitted to the user through the interface device 200 informing the user that the desired telephone number cannot be found and informing the user to try again. If a keyword is found, the user searches the database server 220 to find a desired phone number. If there is a search result, the user transmits a text to the voice synthesis module 420. If the search result does not exist, the user notifies the user that the desired phone number does not exist, and then tries again. Send to.

The voice synthesis module 420 synthesizes a sentence based on the text received from the search module 410 and converts it into a voice. The speech synthesis method can be performed by using an automatic speech response system (ARS) that synthesizes only a limited number of vocabulary and syntax structures, or an unlimited lexical synthesis system that synthesizes speech by receiving arbitrary sentences. have. In the case of using an unlimited lexical synthesis system, the unlimited lexical synthesis system may be implemented using RealSpeak, a text-to-speech (TTS) engine of L & H. After the voice synthesis, the synthesized voice is transmitted to the user through the interface device 200.

The automatic telephone connection module 430 enables automatic telephone connection using the telephone number found in the search module 410. Ask the user if they want to connect automatically, and if they want, first check whether the phone you want to connect is a landline phone or a mobile phone. In other words, the telephone number is interfaced to the PBX to connect the telephone through the PBX and PSTN included in the system in the case of a wired general telephone, and the PBX, PSTN and the mobile telephone network included in the system in the case of a mobile telephone. The telephone is connected through several exchanges (Mobile Switching Center (MSC), Binary Synchronous Communication (BSC), and Basestation Tansmit Substation (BTS)).

5 is a flowchart showing the overall process in the telephone number guide and automatic connection system according to the present invention. In step 500, when the user dials the telephone number guide and autoconnect system, the switch module of the interface device allocates the telephone line. When the user is asked a question when the user communicates with the assigned user through computer 501, in step 502, the user receives a voice and in step 503, the voice is transmitted through the format module of the interface device. Format the file so that it can be recognized and send it to the voice recognition module of the main server. In step 510, if the voice recognition module cannot recognize and recognize the received voice, in step 511, the voice recognition module transmits a message indicating that voice recognition is not possible to the user through the interface device and returns to step 501. Goes. If it can be recognized, in step 512, the voice is changed to text and transmitted to the search module of the main server. The search module receiving the text, in step 520, finds a keyword in the text. If the keyword is not found, in step 521, the content notifying that the keyword cannot be found is transmitted to the user through the interface device, and the flow returns to step 501. If a keyword can be found, in step 522, the database server is searched for by the found keyword, and in step 523, it is determined whether a search result exists. Is sent to the user via the interface device and the process returns to step 501. If there is a search result, the search result is transmitted to the voice synthesis module of the main server. In step 530, the voice synthesis module synthesizes the sentence based on the search result, changes the voice, and transmits the voice to the interface device. . In step 540, when the interface device receives the voice file, the format module formats the format so that the user can recognize it. In step 550, the formatted voice is transmitted to the user. In addition, in step 560, the user inquires whether the user wants to connect to the phone number, and if the user wants, in step 561, the telephone is automatically connected by the method described above in the automatic connection module 430 of the main server 210. And making a connection.

In another variation, even when a search result is present in step 523, the user is asked to confirm whether the recognition content in step 510 is correct, and the user's answer is analyzed and the answer is correct. If only the process of step 530, step 540 and step 550 proceeds and the answer is not correct, step 501 may be returned.

6 is a diagram illustrating an example of a keyword search script used in the present invention. As described above, the search module 410 of the main server 210 finds the keyword through the text of the user's voice file. The method is as follows. The sentence for inquiring a telephone number for each user may be different, and possible contents thereof are defined in a script and stored in advance in a storage space of the main server 210. The search module 410 compares the received text with a search script stored in the storage space of the main server 210. In the script, the location of the main word is specified, and a keyword can be extracted from the received character through comparison. If the keyword is not found as a result of the comparison, the keyword cannot be found as described above, and the received text is stored separately so that the script can be used as a reference when adding the content of the script.

As described above, according to the present invention, even if many users use the telephone number guide system at the same time, the user's request is replaced by a computer on behalf of the guide through the voice recognition system, thereby reducing the accompanying equipment, place, management personnel, etc. In addition, the waiting time for the call with the receptionist does not occur, and the phone number guide system can be used more quickly.

In addition, according to the present invention can be automatically connected to the phone, there is an effect that can be used more conveniently.

The features of the present invention can be operated in accordance with the language characteristics of the world, such as American English, British English, Japanese, Chinese, German as well as Korean.

Claims (9)

In the voice recognition phone number guidance and automatic connection method for recognizing and processing the user's voice, Transmitting a voice received from the user into a file in the interface device and transmitting the file to the main server; Recognizing the voice file received from the main server to the LVR engine to change the text; Finding a keyword in the main server by using the discourse technique; Searching a database in which a phone book is stored in the main server using the found keyword; Transmitting the searched phone number to the interface by making a voice file through the RealSpeak on the main server; And converting the voice file received from the interface device into a voice and transmitting the voice file to the user. The method of claim 1, further comprising the steps of: asking a user whether or not they want to connect to the phone number; If the user wants to make a call from the main server, The method further includes recognizing a number that is a telephone number and making a call according to the number, wherein the voice recognition telephone number guide and automatic connection method recognizes and processes the user's voice. The voice recognition telephone number guide for recognizing and processing a user's voice according to claim 2, wherein the step of making a telephone call is performed by automatically calling a corresponding person by interfacing the telephone number value of the server to the PBX. And automatic connection method. The voice recognition telephone number guidance and automatic connection method of claim 1, wherein the step of recognizing the voice file is performed by using a Large Vocabulary Recognition (LVR) engine of L & H. The voice recognition phone number of claim 1, wherein the step of making the retrieved phone number into a voice file is performed by using a text to speech (TTS) engine (RealSpeak) of L & H. Instructions and how to connect automatically. The voice recognition telephone number guide of claim 1, wherein the step of making the retrieved telephone number into a voice file is performed by using an automatic response system (ARS). And automatic connection method. The method of claim 1, wherein the searching of the keyword comprises a method of extracting a keyword by comparing the text with a search script previously stored in a storage space of the main server. Voice recognition phone number guide and automatic connection method to recognize and process voice. The method of claim 7, wherein when the keyword cannot be extracted by comparing the text with the search script, the text is stored in a storage space of the main server for adding the search script. How to process voice recognition phone number and automatic connection. In the voice recognition phone number guide system for recognizing and processing the user's voice, Means for converting the voice received from the user into a file on the interface device and transmitting the file to the main server; Means for recognizing the voice file received from the main server by using an LVR engine and converting it into text; Means for retrieving a keyword in the main server using a discourse technique for the series of characters; Means for searching a database containing a telephone directory in the main server by the found keyword; Means for transmitting the retrieved telephone number to the interface by making a voice file through the TTS in the main server; Means for converting a voice file received from the interface device into a voice and transmitting the same to a user; Means for automatically calling the main server from the retrieved telephone number; And a means for recognizing a number, which is a telephone number, and dialing the number accordingly.