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:
Aug. 30, 2005
Filed:
Sep. 18, 2001
Hiroshi Seo, Saitama, JP;
Mitsuya Komamura, Saitama, JP;
Soichi Toyama, Saitama, JP;
Pioneer Corporation, Tokyo, JP;
Abstract
A multiplicative distortion Hm(cep) is subtracted from a voice HMM, a multiplicative distortion Ha(cep) of the uttered voice is subtracted from a noise HMMformed by HMM, and the subtraction results Sm(cep) and {Nm(cep)−Ha (cep)} are combined with each other to thereby form a combined HMMin the cepstrum domain. A cepstrum R^a(cep) obtained by subtracting the multiplicative distortion Ha (cep) from the cepstrum Ra (cep) of the uttered voice is compared with the distribution R^m(cep) of the combined HMMin the cepstrum domain, and the combined HMM with the maximum likelihood is output as the voice recognition result.