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. 15, 2014
Filed:
Mar. 24, 2010
Michael Lewis Seltzer, Seattle, WA (US);
Kaustubh Prakash Kalgaonkar, Atlanta, GA (US);
Alejandro Acero, Bellevue, WA (US);
Michael Lewis Seltzer, Seattle, WA (US);
Kaustubh Prakash Kalgaonkar, Atlanta, GA (US);
Alejandro Acero, Bellevue, WA (US);
Microsoft Corporation, Redmond, WA (US);
Abstract
Described is a technology by which a speech recognizer is adapted to perform in noisy environments using linear spline interpolation to approximate the nonlinear relationship between clean speech, noise, and noisy speech. Linear spline parameters that minimize the error the between predicted noisy features and actual noisy features are learned from training data, along with variance data that reflect regression errors. Also described is compensating for linear channel distortion and updating noise and channel parameters during speech recognition decoding.