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:
Jun. 26, 2007
Filed:
Aug. 24, 2001
Takashi Katayama, Osaka, JP;
Masaharu Matsumoto, Osaka, JP;
Masahiro Sueyoshi, Osaka, JP;
Kosuke Nishio, Osaka, JP;
Takeshi Fujita, Osaka, JP;
Akihisa Kawamura, Osaka, JP;
Kazutaka Abe, Osaka, JP;
Takashi Katayama, Osaka, JP;
Masaharu Matsumoto, Osaka, JP;
Masahiro Sueyoshi, Osaka, JP;
Kosuke Nishio, Osaka, JP;
Takeshi Fujita, Osaka, JP;
Akihisa Kawamura, Osaka, JP;
Kazutaka Abe, Osaka, JP;
Matsushita Electric Industrial Co., Ltd., Kadoma, JP;
Abstract
A signal processing apparatus includes a decoder for decoding a stream signal so as to generate a digital audio signal of a low frequency effect channel and digital audio signals of first through n'th (n≧2) channels; an adder section for adding the digital audio signal of the low frequency effect channel and the digital audio signal of a specified channel among the first through n'th channels, so as to generate an addition signal; an n number of D/A conversion sections for converting the digital audio signals of the first through n'th channels, excluding the digital audio signal of the specified channel, and the addition signal into n types of analog audio signals; a first signal processing section for generating a digital audio signal of the low frequency effect channel; and a second signal processing section for generating an analog audio signal of the specified channel.