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:
Apr. 19, 2011
Filed:
Jan. 12, 2006
Shinya Ishikawa, Tokyo, JP;
Kiyoshi Yamabana, Tokyo, JP;
Shinya Ishikawa, Tokyo, JP;
Kiyoshi Yamabana, Tokyo, JP;
NEC Corporation, Tokyo, JP;
Abstract
Speech recognition is performed at high speed by processing respective paths of multi-path speech recognition in parallel. A distance calculation unit receives temporal data sequence of acoustic features, calculates the distance values between all acoustic models and the speech features in the respective frames, and writes them in a distance value buffer. An acoustic lookahead unit receives distance values from a plurality of distance value buffers, calculates lookahead values which are relative priorities of respective recognition units, and writes them into the lookahead value buffer. A word string matching unit receives information from a plurality of distance value buffers and the lookahead value buffers, and recognizes the entire utterance in frame synchronization by adequately selecting matching words using the lookahead values to thereby generate a recognition result.