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. 25, 2012
Filed:
Sep. 02, 2009
Tobias Herbig, Ulm, DE;
Martin Raab, Ulm, DE;
Raymond Brueckner, Blaustein, DE;
Rainer Gruhn, Ulm, DE;
Tobias Herbig, Ulm, DE;
Martin Raab, Ulm, DE;
Raymond Brueckner, Blaustein, DE;
Rainer Gruhn, Ulm, DE;
Nuance Communications, Inc., Burlington, MA (US);
Abstract
The present invention relates to a method for speech recognition of a speech signal comprising the steps of providing at least one codebook comprising codebook entries, in particular, multivariate Gaussians of feature vectors, that are frequency weighted such that higher weights are assigned to entries corresponding to frequencies below a predetermined level than to entries corresponding to frequencies above the predetermined level and processing the speech signal for speech recognition comprising extracting at least one feature vector from the speech signal and matching the feature vector with the entries of the codebook.