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:
Sep. 28, 2021
Filed:
Mar. 24, 2017
Mitsubishi Electric Corporation, Tokyo, JP;
Toshiyuki Hanazawa, Tokyo, JP;
Tomohiro Narita, Tokyo, JP;
MITSUBISHI ELECTRIC CORPORATION, Tokyo, JP;
Abstract
A voice recognition device includes: a first feature vector calculating unit () for calculating a first feature vector from voice data input; an acoustic likelihood calculating unit () for calculating an acoustic likelihood of the first feature vector by using an acoustic model used for calculating an acoustic likelihood of a feature vector; a second feature vector calculating unit () for calculating a second feature vector from the voice data; a noise degree calculating unit () for calculating a noise degree of the second feature vector by using a discriminant model used for calculating a noise degree indicating whether a feature vector is noise or voice; a noise likelihood recalculating unit () for recalculating an acoustic likelihood of noise on the basis of the acoustic likelihood of the first feature vector and the noise degree of the second feature vector; and a collation unit () for performing collation with a pattern of a vocabulary word to be recognized, by using the acoustic likelihood calculated and the acoustic likelihood of noise recalculated, and outputting a recognition result of the voice data.