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:
Oct. 09, 2012
Filed:
Jul. 10, 2006
Shuji Miyasaka, Osaka, JP;
Yosiaki Takagi, Kanagawa, JP;
Takeshi Norimatsu, Hyogo, JP;
Akihisa Kawamura, Osaka, JP;
Kojiro Ono, Osaka, JP;
Shuji Miyasaka, Osaka, JP;
Yosiaki Takagi, Kanagawa, JP;
Takeshi Norimatsu, Hyogo, JP;
Akihisa Kawamura, Osaka, JP;
Kojiro Ono, Osaka, JP;
Panasonic Corporation, Osaka, JP;
Abstract
A signal processing device includes a generation unit that generates a second signal from a first signal that is obtained by down mixing two signals; a mixing coefficient determination unit that determines, based on a value L and a value θ, a mixing degree for mixing the first signal and the second signal; and a mixing unit that mixes the first signal and the second signal based on the mixing degree determined by the mixing coefficient determination unit. The generation unit includes a first filter that generates a low frequency band signal in the second signal, from a low frequency band signal in the first signal; and a second filter that generates a high frequency band signal in the second signal, from a high frequency band signal in the first signal. The first filter is a filter unit which, for a complex-number signal, de-correlates an input signal and adds a reverberation component by using a delay unit and an all pass filter, and the processing unit is a filter unit different from the first filter.