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. 22, 2012
Filed:
Jul. 07, 2006
Yoshiaki Takagi, Kanagawa, JP;
Kok Seng Chong, Singapore, SG;
Takeshi Norimatsu, Hyogo, JP;
Shuji Miyasaka, Osaka, JP;
Akihisa Kawamura, Osaka, JP;
Kojiro Ono, Osaka, JP;
Yoshiaki Takagi, Kanagawa, JP;
Kok Seng Chong, Singapore, SG;
Takeshi Norimatsu, Hyogo, JP;
Shuji Miyasaka, Osaka, JP;
Akihisa Kawamura, Osaka, JP;
Kojiro Ono, Osaka, JP;
Panasonic Corporation, Osaka, JP;
Abstract
Provided is a multi-channel acoustic signal processing device by which loads of arithmetic operations are reduced. The multi-channel acoustic signal processing device includes: a decorrelated signal generation unit, and a matrix operation unit and a third arithmetic unit. The decorrelated signal generation unit generates a decorrelated signal w' indicating a sound which includes a sound indicated by an input signal x and reverberation, by performing reverberation processing on the input signal x. The matrix operation unit and the third arithmetic unit generate audio signals of m channels, by performing arithmetic operation on the input signal x and the decorrelated signal w′ generated by the decorrelated signal generation unit, using a matrix Rwhich indicates distribution of a signal intensity level and distribution of reverberation.