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:
Mar. 25, 2014
Filed:
Mar. 27, 2009
Koji Okabe, Tokyo, JP;
Ryosuke Isotani, Tokyo, JP;
Kiyoshi Yamabana, Tokyo, JP;
Ken Hanazawa, Tokyo, JP;
Koji Okabe, Tokyo, JP;
Ryosuke Isotani, Tokyo, JP;
Kiyoshi Yamabana, Tokyo, JP;
Ken Hanazawa, Tokyo, JP;
NEC Corporation, Tokyo, JP;
Abstract
A speech recognition apparatus that performs frame synchronous beam search by using a language model score look-ahead value prevents the pruning of a correct answer hypothesis while suppressing an increase in the number of hypotheses. A language model score look-ahead value imparting deviceis provided with a word dictionarythat defines a phoneme string of a word, a language modelthat imparts a score of appearance easiness of a word, and a smoothing language model score look-ahead value calculation means. The smoothing language model score look-ahead value calculation meansobtains a language model score look-ahead value at each phoneme in the word from the phoneme string of the word defined by the word dictionaryand the language model score defined by the language modelso that the language model score look-ahead values are prevented from concentrating on the beginning of the word.