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:
Feb. 25, 2020
Filed:
Apr. 29, 2019
Applicant:
Huawei Technologies Co., Ltd., Shenzhen, CN;
Inventor:
Lelin Wang, Shenzhen, CN;
Assignee:
Huawei Technologies Co., Ltd., Shenzhen, CN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04R 5/04 (2006.01); H04R 5/027 (2006.01); H04R 3/04 (2006.01); H04R 3/00 (2006.01); G10L 21/0224 (2013.01); G10L 21/0208 (2013.01); G01S 11/14 (2006.01); H04M 1/725 (2006.01); G06K 9/00 (2006.01);
U.S. Cl.
CPC ...
H04R 5/04 (2013.01); G01S 11/14 (2013.01); G06K 9/00221 (2013.01); G06K 9/00268 (2013.01); G10L 21/0208 (2013.01); G10L 21/0224 (2013.01); H04M 1/7255 (2013.01); H04R 3/005 (2013.01); H04R 3/04 (2013.01); H04R 5/027 (2013.01);
Abstract
A method includes acquiring sound signals of a current frame using two microphones, calculating an interaural level difference between the two microphones based on the sound signals of the current frame according to a first preset algorithm, determining whether the interaural level difference satisfies a sound source direction determining condition, determining, based on the interaural level difference, whether the sound signals of the current frame include a backward sound signal if the determining condition is satisfied, filtering out the backward sound signal from the sound signals of the current frame.