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. 17, 2011
Filed:
Dec. 26, 2005
Koji Yoshida, Kanagawa, JP;
Michiyo Goto, Tokyo, JP;
Koji Yoshida, Kanagawa, JP;
Michiyo Goto, Tokyo, JP;
Panasonic Corporation, Osaka, JP;
Abstract
A sound coding device having a monaural/stereo scalable structure and capable of efficiently coding stereo sound. even when the correlation between the channel signals of a stereo signal is small. In a core layer coding block of this device, a monaural signal generating section generates a monaural signal from first and second-channel sound signal, a monaural signal coding section codes the monaural signal, and a monaural signal decoding section greatest a monaural decoded signal from monaural signal coded data and outputs it to an expansion layer coding block. In the expansion layer coding block, a first-channel prediction signal synthesizing section synthesizes a first-channel prediction signal from the monaural decoded signal and a first-channel prediction filter digitizing parameter and a second-channel prediction signal synthesizing section synthesizes a second-channel prediction signal from the monaural decoded signal and second-channel prediction filter digitizing parameter.