Patent ID: 6314398
Filing Date: 2001-11-06
Classification: G10L,H04N

Abstract:
A speech understanding system for receiving a spoken request from a user and processing the request against a knowledge base of programming information for automatically selecting a television program comprising:a knowledge extractor for receiving electronic programming guide (EPG) information and processing the EPG information for creating a program database;a speech recognizer for receiving the spoken request and translating the spoken request into a text stream having a plurality of words;a natural language processor for receiving the text stream and processing the words for resolving a semantic content of the spoken request, the natural language processor placing the meaning of the words into a task frame having a plurality of key word slots; anda dialogue manager for analyzing the task frame for determining if a sufficient number of key word slots have been filled and prompting the user for additional information for filing empty slots, the dialog manager searching the program database using the key words placed within the task frame for selecting a program, and producing a signal for selecting a television channel associated with the television program.