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:
Aug. 07, 2018
Filed:
Dec. 26, 2014
Applicant:
Nec Corporation, Tokyo, JP;
Inventors:
Masanori Tsujikawa, Tokyo, JP;
Ryosuke Isotani, Tokyo, JP;
Assignee:
NEC CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G10L 21/02 (2013.01); G10L 19/012 (2013.01); G10L 21/0264 (2013.01); H04R 3/00 (2006.01); G10L 21/0208 (2013.01); G10L 21/0272 (2013.01); G10L 21/0216 (2013.01);
U.S. Cl.
CPC ...
G10L 21/0264 (2013.01); G10L 21/0208 (2013.01); G10L 21/0272 (2013.01); H04R 3/00 (2013.01); G10L 2021/02166 (2013.01);
Abstract
To remove only noise components without removing desired signal components, a signal processing apparatus includes a noise decorrelator that removes noise signals having correlation between at least two input signals, in each of which a desired signal and a noise signal coexist, by receiving the at least two input signals from at least two channels, and a residual noise remover that removes residual noise included in an output signal of the noise decorrelator based on a phase difference between the output signal of the noise decorrelator and at least one input signal included in the at least two input signals.