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. 27, 2025
Filed:
Jul. 28, 2021
Applicant:
Yamaha Corporation, Hamamatsu, JP;
Inventors:
Ryo Tanaka, Hamamatsu, JP;
Satoshi Ukai, Hamamatsu, JP;
Assignee:
YAMAHA CORPORATION, Hamamatsu, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G10L 21/0324 (2013.01); H04R 3/00 (2006.01); H04R 3/04 (2006.01); H04R 5/04 (2006.01); H04S 1/00 (2006.01); H04S 7/00 (2006.01);
U.S. Cl.
CPC ...
G10L 21/0324 (2013.01); H04R 3/005 (2013.01); H04R 3/04 (2013.01); H04R 5/04 (2013.01); H04S 1/007 (2013.01); H04S 7/307 (2013.01);
Abstract
A filtering method includes: receiving a first audio signal and a second audio signal that include sound emitted from a same sound source at different volumes; generating a filter signal by convoluting adaptive filter coefficients into the second audio signal; removing components of the filter signal from the first audio signal; and limiting a gain of the adaptive filter coefficients to 1.0 or less.