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. 23, 2017
Filed:
Nov. 20, 2013
Applicant:
Oki Electric Industry Co., Ltd., Tokyo, JP;
Inventor:
Katsuyuki Takahashi, Tokyo, JP;
Assignee:
Oki Electric Industry Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G10L 21/00 (2013.01); G10L 21/0232 (2013.01); G10L 21/0264 (2013.01); G10L 21/0308 (2013.01); G10L 25/18 (2013.01); G10L 21/0216 (2013.01);
U.S. Cl.
CPC ...
G10L 21/0232 (2013.01); G10L 21/0264 (2013.01); G10L 21/0308 (2013.01); G10L 25/18 (2013.01); G10L 2021/02166 (2013.01);
Abstract
The signal processor suppresses noise components contained in input sound signals by iterative spectral subtraction. The processor derives coherence from first and second directional signals having directivity characteristics on the basis of a pair of input sound signals, and controls the times of iteration of spectral subtraction on the basis of the coherence, thereby suppressing the noise components contained in the input sound signals.