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. 13, 2011
Filed:
Aug. 31, 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;
Tomokazu Ishikawa, 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;
Tomokazu Ishikawa, Osaka, JP;
Panasonic Corporation, Osaka, JP;
Abstract
A temporal processing apparatus includes: a splitter splitting an audio signal, included in the sub-band domain, into diffuse signals indicating reverberating components and direct signals indicating non-reverberating components; a downmix unit generating a downmix signal by downmixing the direct signals; BPFs respectively generating a bandpass downmix signal and bandpass diffuse signals; normalization processing units respectively generating a normalized downmix signal and normalized diffuse signals; a scale computation processing unit computing, on a predetermined time slot basis, a scale factor indicating the magnitude of energy of the normalized downmix signal with respect to energy of the normalized diffuse signals; a calculating unit generating scale diffuse signals; a HPF generating high-pass diffuse signals; an adding unit generating addition signals; and a synthesis filter bank performing synthesis filter processing on the addition signals and transforming the addition signals into the time domains.