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:
Jul. 21, 2020
Filed:
Feb. 21, 2018
Applicant:
Bose Corporation, Framingham, MA (US);
Inventors:
Eric J. Freeman, Sutton, MA (US);
Joseph Gaalaas, Woodbury, MN (US);
Assignee:
BOSE CORPORATION, Framingham, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G10L 21/0232 (2013.01); G10L 21/0208 (2013.01); G10L 15/22 (2006.01); G10L 25/78 (2013.01); H04R 1/40 (2006.01); H04R 3/00 (2006.01);
U.S. Cl.
CPC ...
G10L 21/0232 (2013.01); G10L 15/22 (2013.01); G10L 21/0208 (2013.01); G10L 25/78 (2013.01); H04R 1/406 (2013.01); H04R 3/005 (2013.01); G10L 2015/223 (2013.01); G10L 2021/02082 (2013.01);
Abstract
Audio systems and methods are provided that receive a playback signal and produce an acoustic signal based upon the playback signal, and include microphone signal(s) for capturing and processing user voice signals. An echo reference signal is based upon the playback signal, and an echo canceler reduces echo components from the microphone signal(s). Functionality of the echo canceler is modified, such as by freezing an adaptive filter, in response to a non-linear condition in the audio playback, or a likelihood of such a non-linear condition.