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. 03, 2016
Filed:
Sep. 24, 2013
Applicant:
Apple Inc., Cupertino, CA (US);
Inventors:
Thomas M. Jensen, San Francisco, CA (US);
Vladan Bajic, San Francisco, CA (US);
Andrew P. Bright, San Francisco, CA (US);
Assignee:
Apple Inc., Cupertino, CA (US);
Primary Examiner:
Int. Cl.
CPC ...
G10K 11/16 (2006.01); G10K 11/178 (2006.01);
U.S. Cl.
CPC ...
G10K 11/16 (2013.01); G10K 11/1784 (2013.01); G10K 2210/1081 (2013.01); G10K 2210/3018 (2013.01); G10K 2210/3056 (2013.01);
Abstract
In one aspect, multiple adaptive W filters and associated adaptive filter controllers are provided that use multiple reference microphone signals to produce multiple, 'component' anti-noise signals. These are gain weighted and summed to produce a single anti-noise signal, which drives an earpiece speaker. The weighting changes based on computed measures of the coherence between content in each reference signal and content in an error signal. Other embodiments are also described and claimed.