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:
Sep. 02, 2014
Filed:
Jul. 26, 2011
Takeo Kanamori, Osaka, JP;
Shinichi Yuzuriha, Osaka, JP;
Yutaka Banba, Kanagawa, JP;
Yasuhiro Terada, Kanagawa, JP;
Takeo Kanamori, Osaka, JP;
Shinichi Yuzuriha, Osaka, JP;
Yutaka Banba, Kanagawa, JP;
Yasuhiro Terada, Kanagawa, JP;
Panasonic Corporation, Osaka, JP;
Abstract
A power spectrum estimation unit () obtains an estimated sound power spectrum P(ω), based on a power spectrum P(ω) and on a first calculated value obtained by at least multiplying a power spectrum P(ω) by a weight coefficient A(ω). A coefficient update unit () updates the weight coefficient A(ω) and a weight coefficient A(ω) so that a second calculated value approximates to the power spectrum P(ω). The second calculated value is obtained by adding at least two values obtained by multiplying the power spectrum P(ω) and the estimated target sound power spectrum P(ω) by the weight coefficient A(ω) and the weight coefficient A(ω), respectively.