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. 04, 2009
Filed:
Aug. 31, 2005
Martin Graciarena, Menlo Park, CA (US);
Horacio Franco, Menlo Park, CA (US);
Venkata Ramana Rao Gadde, Santa Clara, CA (US);
Martin Graciarena, Menlo Park, CA (US);
Horacio Franco, Menlo Park, CA (US);
Venkata Ramana Rao Gadde, Santa Clara, CA (US);
SRI International, Menlo Park, CA (US);
Abstract
An apparatus and a concomitant method for recognizing speech in a noisy environment are provided. The present method includes applying a first interpolation weight to a clean speech model to produce a weighted clean speech model, applying a second interpolation weight to a noise model to produce a weighted noise model, and deriving a noisy speech model directly from the weighted clean speech model and the weighted noise model. At least one of the first interpolation weight and the second interpolation weight is computed in a maximum likelihood framework.