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. 04, 2006
Filed:
Jan. 31, 2001
Chienchung Chang, Rancho Santa Fe, CA (US);
Naren Malayath, San Diego, CA (US);
Byron Yoshio Yafuso, San Diego, CA (US);
Chienchung Chang, Rancho Santa Fe, CA (US);
Naren Malayath, San Diego, CA (US);
Byron Yoshio Yafuso, San Diego, CA (US);
Qualcomm Incorporated, San Diego, CA (US);
Abstract
A voice recognition system applies speaker-dependent modification functions to acoustic feature vectors prior to voice recognition pattern matching against a speaker-independent acoustic model. An adaptation engine matches a set of acoustic feature vectors X with an adaptation model to select a speaker-dependent feature vector modification function f( ), which is then applied to X to form a modified set of acoustic feature vectors f(X). Voice recognition is then performed by correlating the modified acoustic feature vectors f(X) with a speaker-independent acoustic model.