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. 29, 2005
Michiyo Goto, Tokyo, JP;
Chun Woei Teo, Singapore, SG;
Sua Hong Neo, Singapore, SG;
Koji Yoshida, Kanagawa, JP;
Michiyo Goto, Tokyo, JP;
Chun Woei Teo, Singapore, SG;
Sua Hong Neo, Singapore, SG;
Koji Yoshida, Kanagawa, JP;
Panasonic Corporation, Osaka, JP;
Abstract
A stereo signal generating apparatus capable of obtaining stereo signals that exhibit a low bit rate and an excellent reproducibility. In this stereo signal generating apparatus (), an FT part () converts a monaural signal (M') of time domain to a monaural signal (M′) of frequency domain. A power spectrum calculating part () determines a power spectrum (P). A scaling ratio calculating part () determines a scaling ratio (S) for a left channel, while a scaling ratio calculating part () determines a scaling ratio (S) for a right channel. A multiplying part () multiplies the monaural signal (M′) of frequency domain by the scaling ratio (S) to produce a left channel signal (L″) of a stereo signal, while a multiplying part () multiplies the monaural signal (M′) of frequency domain by the scaling ratio (S) to produce a right channel signal (R″) of the stereo signal.