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:
Jul. 23, 2019
Filed:
Sep. 13, 2017
Panasonic Corporation, Osaka, JP;
Tsuyoki Nishikawa, Osaka, JP;
Kohhei Hayashida, Kyoto, JP;
PANASONIC CORPORATION, Osaka, JP;
Abstract
A noise reduction device includes an acoustic characteristic determination unit, a microphone pair selection unit, and a noise reduction unit. The acoustic characteristic determination unit determines, using one of microphone pair signals obtained from a plurality of microphone pairs, whether acoustic characteristics of each of the plurality of microphone pairs satisfy a certain requirement. The microphone pair selection unit selects, from among the plurality of microphone pairs, a target microphone pair whose acoustic characteristics have been determined to satisfy the certain requirement. The noise reduction unit reduces, using a microphone pair signal obtained from the target microphone pair, noise included in an input signal obtained from at least one of microphone signals output from a plurality of microphones.