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:
Jun. 20, 2006
Filed:
Sep. 28, 2001
Kiyoshi Yajima, Saitama, JP;
Soichi Toyama, Saitama, JP;
Kiyoshi Yajima, Saitama, JP;
Soichi Toyama, Saitama, JP;
Pioneer Corporation, Tokyo, JP;
Abstract
At the time of the speaker adaptation, first feature vector generation sections () generate a feature vector series [C] from which the additive noise and multiplicative noise are removed. A second feature vector generation section () generates a feature vector series [S] including the features of the additive noise and multiplicative noise. A path search section () conducts a path search by comparing the feature vector series [C] to the standard vector [a] of the standard voice HMM (). When the speaker adaptation section () conducts correlation operation on an average feature vector [S^] of the standard vector [a] corresponding to the path search result Dv and the feature vector series [S], the adaptive vector [x] is generated. The adaptive vector [x] updates the feature vector of the speaker adaptive acoustic model () used for the speech recognition.