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:
Jan. 12, 2016
Filed:
Dec. 04, 2012
Applicants:
Jacob Benesty, Montreal, CA;
Jingdong Chen, Shanxi, CN;
Inventors:
Jacob Benesty, Montreal, CA;
Jingdong Chen, Shanxi, CN;
Assignee:
Northwestern Polytechnical University, Xi'an, Shanxi, CN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04R 3/00 (2006.01); H04R 1/08 (2006.01); H04R 3/04 (2006.01); H04R 1/40 (2006.01);
U.S. Cl.
CPC ...
H04R 1/08 (2013.01); H04R 3/005 (2013.01); H04R 3/04 (2013.01); H04R 1/406 (2013.01); H04R 2201/403 (2013.01); H04R 2430/03 (2013.01); H04R 2430/21 (2013.01);
Abstract
A differential microphone array (DMA) is provided that includes a number (M) of microphone sensors for converting a sound to a number of electrical signals and a processor that is configured to apply linearly-constrained minimum variance filters on the electrical signals over a time window to calculate frequency responses of the electrical signals over a plurality of subbands and sum the frequency responses of the electrical signals for each subband to calculate an estimated frequency spectrum of the sound.