USER-INITIATIVE VOICE SERVICE SYSTEM AND METHOD

• US 20080097760A1
• Filed: 02/16/2007
• Published: 04/24/2008
• Est. Priority Date: 10/23/2006
• Status: Active Grant

• Current Assignee: Jolly Seven, Series 70 of Allied Security Trust I (Allied Security Trust)
• Original Assignee: Sungkyunkwan University Foundation For Corporate Collaboration (SungKyunKwan University (SKKU))
• Inventors: Kwon, Hyeong Joon, Hong, Kwang Seok
• Granted Patent: US 8,504,370 B2
• Time in Patent Office: Days
• US Class Current: 704/251
• CPC Class Codes: G10L 15/193 Formal grammars, e.g. finite state automata, context free grammars or word networks
• CPC Class Codes: G10L 15/22 Procedures used during a speech recognition process, e.g. man-machine dialogue

Abstract

A voice service system which includes a database storing information and is connected with a plurality of terminals by a communication network, comprising a call connection unit for transmitting-receiving a signal, on a voice service to/from each of the terminals, a voice processing unit for interpreting a voice instruction received from the terminal and converting an internally-created voice service document into a voice message, a recognition management unit for extracting a grammar, which is expected to be spoken by a user, from the database, a document management unit for creating the voice service document including the extracted grammar as a voice anchor, and a control unit for controlling information related to the voice anchor matching with the voice instruction to be provided.

Claims

1. A voice service system which includes a database storing information and is connected with a plurality of terminals by a communication network, comprising:

a call connection unit for transmitting-receiving a signal on a voice service to/from each of the terminals;

a voice processing unit for interpreting a voice instruction received from the terminal and converting an internally-created voice service document into a voice message;

a recognition management unit for extracting a grammar, which is expected to be spoken by a user, from the database;

a document management unit for creating the voice service document including the extracted grammar as a voice anchor; and

a control unit for controlling information related to the voice anchor matching with the voice instruction to be provided.

2. The voice service system according to claim 1, wherein the database stores data composed of a number of voice anchors, which are keywords of the information to be provided to the user, and a number of voice nodes, which are information to be provided to the user in relation with the voice anchors.

3. The voice service system according to claim 2, wherein each of the voice nodes includes a number of the voice anchors, and each of the voice anchors is associated with another one of the voice nodes.

4. The voice service system according to claim 1, wherein the grammar management unit divides a text of voice nodes, which are stored in the database and supposed to be provided to the terminal, according to word phrases;

removes prefixes, suffixes and special characters from the text of voice nodes to edit a word list; and

extracts a word, which matches with the voice anchor stored in the database, as the grammar.

5. The voice service system according to claim 1, wherein the control unit counts the number of voice anchor used and stores a resultant counter in the database.

6. The voice service system according to claim 1, wherein the voice service document comprises a voice extensible markup language document.

7. A voice service method in a voice service system, which includes a database storing data and is connected with a plurality of terminals by a communication network, in which the data includes a number of voice anchors as keywords of information to be provided to a user and a number of voice nodes as information to be provided to the user in relation with the voice anchors, the method comprising:

receiving a connection request from the terminal;

transmitting a service guide voice message in response to the connection request to the terminal;

judging whether or not a voice instruction is received from the terminal;

if the voice instruction is received, interpreting the voice instruction to judge whether or not any of the voice anchors match with the voice instruction; and

if a matching voice anchor exists, transmitting information related with the voice anchor, converted into an information voice message, to the terminal.

8. The voice service method according to claim 7, wherein each of the voice nodes includes a number of voice anchors, and each of the voice anchors is associated with another one of the voice nodes.

9. The voice service method according to claim 8, wherein the step of transmitting the information related with the voice anchor comprises:

searching the voice node in association with the voice anchor from the database;

extracting a grammar, which is expected to be spoken by a user, from the searched voice node;

converting the voice node into a voice service document including the extracted grammar as the voice anchor; and

converting the created voice service document into the information voice message.

10. The voice service method according to claim 9, wherein the extracting step comprises:

dividing a text of the voice node according to word phrases;

removing prefixes, suffixes and special characters from the divided text;

editing words of the text into a word list;

matching each of the words of the edited word list with the voice anchors stored in the database; and

extracting a word matching with the voice anchor as the grammar.

11. The voice service method according to claim 10, farther comprising;

counting the number of voice anchors used and storing a resultant counter in the database.

12. The voice service method according to claim 9, wherein the voice service document comprises a voice extensible markup language document.