Hierarchical Methods and Apparatus for Extracting User Intent from Spoken Utterances
Patent Information
- Authority / Receiving Office
- US ยท United States
- Patent Type
- Applications(United States)
- Current Assignee / Owner
- NUANCE COMM INC
- Publication Date
- 2008-09-11
- Estimated Expiration
- Not applicable ยท inactive patent
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Abstract
Description
CROSS-REFERENCE TO RELATED APPLICATION(S)
[0001] This application is a continuation of U.S. application Ser. No. 11 / 216,483 filed on Aug. 31, 2005, the disclosure of which is incorporated herein by reference.FIELD OF INVENTION
[0002] The present invention relates generally to speech processing systems and, more particularly, to systems for hierarchically extracting user intent from spoken utterances, such as spoken instructions or commands.BACKGROUND OF THE INVENTION
[0003] The use of a speech recognition system (or a voice system) to translate a user's spoken command to a precise text command that the target system can input and process is well known. For example, in a conventional voice system based in a vehicle, a user (e.g., driver) interacts with the voice system by uttering very specific commands that must be consistent with machine-based grammar that is understood by the target system.
[0004] By way of example, assume that the climate control system in the vehicle is the target syste...