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. 16, 2013
Filed:
Dec. 10, 2010
Makoto Morito, Kanagawa, JP;
Takashi Yazu, Kanagawa, JP;
Kei Yamada, Saitama, JP;
Tetsunori Kobayashi, Tokyo, JP;
Kenzo Akagiri, Kanagawa, JP;
Tetsuji Ogawa, Kanagawa, JP;
Makoto Morito, Kanagawa, JP;
Takashi Yazu, Kanagawa, JP;
Kei Yamada, Saitama, JP;
Tetsunori Kobayashi, Tokyo, JP;
Kenzo Akagiri, Kanagawa, JP;
Tetsuji Ogawa, Kanagawa, JP;
Oki Electric Industry Co., Ltd., Tokyo, JP;
Waseda University, Tokyo, JP;
Abstract
In a source sound separator, first and second target sound predominant spectra are generated respectively by first and second processing operations for linear combination for emphasizing the target sound, using received sound signals of two microphones arrayed at a distance from each other. A target sound suppressed spectrum is generated by processing for linear combination for suppression of the target sound, using the two received sound signals. Further, a phase signal containing a larger amount of signal components of the target sound and exhibiting directivity in the direction of the target sound is generated by processing of linear combination, using the two received sound signals. The target sound and the interfering sound are separated from each other using the first and second target sound predominant spectra, the target sound suppressed spectrum, and the phase signal.