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:
Jan. 17, 2012
Filed:
Jun. 27, 2006
Hideo Kuboyama, Yokohama, JP;
Hiroki Yamamoto, Yokohama, JP;
Hideo Kuboyama, Yokohama, JP;
Hiroki Yamamoto, Yokohama, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A speech recognition method in which, upon speech recognition with use of a model composed of subwords such as triphones depending on a plurality of context, inhibiting hypotheses from extending according to the plurality of contexts so that a processing rate of the speech recognition is increased. In computing a likelihood of an acoustic model referred to upon computation of an accumulated likelihood of a hypothesis through the speech recognition, with respect to each hypothesis, at least one subword model determined depending on its context subwords is referred to, likelihoods of a speech to be recognized and acoustic models of the respective subword models are computed, and the maximum value of the computed likelihoods is set as a likelihood of an acoustic model corresponding to the hypothesis.