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. 23, 2013
Filed:
Jan. 18, 2008
Yoshifumi Onishi, Tokyo, JP;
Tadashi Emori, Tokyo, JP;
Yoshifumi Onishi, Tokyo, JP;
Tadashi Emori, Tokyo, JP;
NEC Corporation, Tokyo, JP;
Abstract
A speech recognition apparatus () selects an optimum recognition result from recognition results output from a set of speech recognizers (s-sM) based on a majority decision. This decision is implemented with taking into account weight values, as to the set of the speech recognizers, learned by a learning apparatus (). The learning apparatus includes a unit () selecting speech recognizers corresponding to characteristics of speech for learning (), a unit () finding recognition results of the speech for learning by using the selected speech recognizers, a unit () unifying the recognition results and generating a word string network, and a unit () finding weight values concerning a set of the speech recognizers by implementing learning processing. When finding weight values, the learning apparatus selects a word from each arc set in the word string network based on a majority decision which is taken into account candidates of weight value, and outputs weight value candidates which minimize a recognition error rate of a word string formed of the selected words, as a learning result.