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:
Mar. 22, 2016
Filed:
Feb. 22, 2014
Applicant:
Apple Inc., Cupertino, CA (US);
Inventor:
Andre L. Goldstein, San Jose, CA (US);
Assignee:
Apple Inc., Cupertino, CA (US);
Primary Examiner:
Int. Cl.
CPC ...
G10K 11/16 (2006.01); G10K 11/175 (2006.01); H03G 3/20 (2006.01); G10L 21/0208 (2013.01); G10K 11/178 (2006.01); H04R 25/00 (2006.01); H04R 1/10 (2006.01);
U.S. Cl.
CPC ...
G10K 11/175 (2013.01); G10K 11/1784 (2013.01); G10L 21/0208 (2013.01); H03G 3/20 (2013.01); H04R 1/1083 (2013.01); H04R 25/505 (2013.01); G10K 2210/3213 (2013.01); H04R 2410/05 (2013.01); H04R 2460/01 (2013.01);
Abstract
An acoustic noise cancellation (ANC) process is performed during in-the-field use of a personal listening audio device, using a control filter to produce anti-noise by the device. The process includes computing an S_hat filter that estimates a signal path between an earpiece speaker of the device and an error microphone that are at a user's ear. A response associated with the computed S_hat filter is compared to a predetermined response that is stored in the device. The control filter is adjusted in accordance with the comparison. Other embodiments are also described and claimed.