08682668 cites 44 patents.

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 device 108 is provided with a word dictionary 203 that defines a phoneme string of a word, a language model 202 that imparts a score of appearance easiness of a word, and a smoothing language model score look-ahead value calculation means 201. The smoothing language model score look-ahead value calculation means 201 obtains a language model score look-ahead value at each phoneme in the word from the phoneme string of the word defined by the word dictionary 203 and the language model score defined by the language model 202 so that the language model score look-ahead values are prevented from concentrating on the beginning of the word.

Title
Language model score look-ahead value imparting device, language model score look-ahead value imparting method, and program storage medium
Application Number
12/992760
Publication Number
8682668 (B2)
Application Date
March 27, 2009
Publication Date
March 25, 2014
Inventor
Ken Hanazawa
Tokyo
JP
Kiyoshi Yamabana
Tokyo
JP
Ryosuke Isotani
Tokyo
JP
Koji Okabe
Tokyo
JP
Agent
Sughrue Mion PLLC
Assignee
NEC Corporation
JP
IPC
G10L 15/06
G10L 15/04
G10L 15/02
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