The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 05, 2002
Filed:
May. 29, 1999
Method and apparatus for improving speech command recognition accuracy using event-based constraints
James R. Lewis, Delray Beach, FL (US);
Kerry A. Ortega, Raleigh, NC (US);
Ronald E. Van Buskirk, Indiantown, FL (US);
Huifang Wang, Boynton Beach, FL (US);
Amado Nassiff, Boynton Beach, FL (US);
Barbara E. Ballard, Kansas City, MO (US);
International Business Machines Corp., Armonk, NY (US);
Abstract
A method and system for improving the speech command recognition accuracy of a computer speech recognition system uses event-based constraints to recognize a spoken command. The constraints are system states and events, which include system activities, active applications, prior commands and an event queue. The method and system is performed by monitoring events and states of the computer system and receiving a processed command corresponding to the spoken command. The processed command is statistically analyzed in light of the system events and states as well as according to an acoustic model. The system then identifies a recognized command corresponding to the spoken command.