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:
Dec. 01, 2009
Filed:
Nov. 25, 2002
Neil J. Bershad, Newport Beach, CA (US);
Anurag Bist, Newport Beach, CA (US);
Stan Hsieh, Diamond Bar, CA (US);
Neil J. Bershad, Newport Beach, CA (US);
Anurag Bist, Newport Beach, CA (US);
Stan Hsieh, Diamond Bar, CA (US);
Intel Corporation, Santa Clara, CA (US);
Abstract
An embodiment of the present invention includes an adaptive predictor, a system white noise generator, and a background noise estimator. The adaptive predictor estimates adaptive weights of autoregressive (AR) model of background noise as background samples in an echo canceler. The adaptive predictor generates adaptive error. The system white noise generator generates a white noise using the adaptive error. The noise background estimator estimates the background noise using the white noise and the estimated adaptive weights.