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:
May. 17, 2016
Filed:
Aug. 20, 2010
Carlo Murgia, Sunnyvale, CA (US);
YE Jiang, Sunnyvale, CA (US);
Michael M. Goodwin, Scotts Valley, CA (US);
Mark Every, Palo Alto, CA (US);
Carlo Murgia, Sunnyvale, CA (US);
Ye Jiang, Sunnyvale, CA (US);
Michael M. Goodwin, Scotts Valley, CA (US);
Mark Every, Palo Alto, CA (US);
Knowles Electronics, LLC, Itasca, IL (US);
Abstract
The present technology provides adaptive noise and echo reduction of an acoustic signal which can overcome or substantially alleviate problems associated with mistaken adaptation of speech and noise models to acoustic echo. The present technology carries out a multi-faceted analysis to identify echo within the near-end acoustic signal to derive an echo model. Echo classification information regarding the derived echo model is then utilized to build near-end speech and noise models. These echo, speech, and noise models are then used to generate one or more signal modifications applied to the acoustic signal to preserve the desired near-end speech signal and reduce the echo and near-end noise signals. By building near-end speech and noise models utilizing echo classification information, the present technology can prevent adaptation of the speech and noise model to the acoustic echo.