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:
Sep. 10, 2019
Filed:
Jul. 03, 2018
Applicant:
Cirrus Logic International Semiconductor Ltd., Edinburgh, GB;
Inventors:
Robert Luke, Richmond East, AU;
Vitaliy Sapozhnykov, Cremorne, AU;
Thomas Ivan Harvey, Cremorne, AU;
Assignee:
Cirrus Logic, Inc., Austin, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04R 29/00 (2006.01); H04R 1/40 (2006.01); H04R 3/00 (2006.01); H04R 1/10 (2006.01);
U.S. Cl.
CPC ...
H04R 29/005 (2013.01); H04R 1/406 (2013.01); H04R 3/005 (2013.01); H04R 29/004 (2013.01); H04R 1/10 (2013.01); H04R 2410/07 (2013.01);
Abstract
Detection of a blocked microphone involves receiving microphone signals from a plurality of microphones. A plurality of signal feature measures are derived from the microphone signals. The signal feature measures are normalised. The normalised signal feature measures are variably weighted in response to detected environmental conditions in the microphone signals. The variably weighted normalised signal feature measures are combined to produce an output indication of whether a microphone is blocked.