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:
Apr. 18, 2023
Filed:
Sep. 14, 2020
Applicant:
Huawei Technologies Co., Ltd., Shenzhen, CN;
Inventors:
Assignee:
Huawei Technologies Co., Ltd., Shenzhen, CN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04S 3/02 (2006.01); H04R 3/00 (2006.01); H04R 1/40 (2006.01); G10L 19/008 (2013.01); G10L 19/02 (2013.01); H04R 3/02 (2006.01);
U.S. Cl.
CPC ...
H04R 1/406 (2013.01); G10L 19/008 (2013.01); G10L 19/02 (2013.01); H04R 3/02 (2013.01); H04R 2430/21 (2013.01); H04S 2400/15 (2013.01);
Abstract
A method and a device encode N audio signals, from N microphones where N≥3. For each pair of the N audio signals an angle of incidence of direct sound is estimated. A-format direct sound signals are derived from the estimated angles of incidence by deriving from each estimated angle an A-format direct sound signal. Each A-format direct sound signal is a first-order virtual microphone signal, for example, a cardioids signal.