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:
Jun. 19, 2018
Filed:
Jul. 21, 2016
Applicant:
Qualcomm Incorporated, San Diego, CA (US);
Inventors:
Asif Mohammad, San Diego, CA (US);
Sreekanth Narayanaswamy, San Diego, CA (US);
Wade Heimbigner, Vista, CA (US);
Erik Visser, San Diego, CA (US);
Assignee:
QUALCOMM Incorporated, San Diego, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G10K 11/16 (2006.01); G10K 11/178 (2006.01); H04M 9/08 (2006.01); H04R 3/02 (2006.01); G10L 21/0208 (2013.01); H04M 3/00 (2006.01);
U.S. Cl.
CPC ...
G10K 11/178 (2013.01); G10L 21/0208 (2013.01); H04M 9/082 (2013.01); H04R 3/02 (2013.01); G10K 2210/12821 (2013.01); G10L 2021/02082 (2013.01); H04M 3/002 (2013.01); H04R 2499/11 (2013.01); H04R 2499/13 (2013.01);
Abstract
A system includes a feedback filter configured to receive an audio signal from a microphone and to process the audio signal based on a feedback path between a loudspeaker and the microphone. The system also includes an adaptive filter coupled to the feedback filter. The system further includes a signal combiner coupled to the microphone and to the adaptive filter.