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. 03, 2015
Filed:
Dec. 12, 2011
Applicants:
Kamran Rahbar, Kanata, CA;
Dean Morgan, Kanata, CA;
Inventors:
Kamran Rahbar, Kanata, CA;
Dean Morgan, Kanata, CA;
Assignee:
Microsemi Semiconductor ULC, Kanata, ON, CA;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04B 15/00 (2006.01); G03B 31/00 (2006.01); H04R 3/00 (2006.01); G10L 21/0264 (2013.01); G10L 21/0224 (2013.01); G10L 21/0216 (2013.01);
U.S. Cl.
CPC ...
G03B 31/00 (2013.01); H04R 3/005 (2013.01); G10L 21/0264 (2013.01); H04R 2430/20 (2013.01); G10L 21/0224 (2013.01); G10L 2021/02166 (2013.01);
Abstract
A method of reducing noise in an environment where the noise source is in a fixed location relative to a pair of microphones, such as in a camera with a zoom motor, involves receiving signals x(t), x(t) from the respective microphones, and filtering each of the signals x(t), x(t) with respective first and second linear filters having filter coefficients obtained by computing eigenfilters corresponding to data samples from the respective microphones for noise only and signal only conditions.