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:
Dec. 31, 2013
Filed:
Sep. 21, 2009
Masanao Suzuki, Kawasaki, JP;
Miyuki Shirakawa, Fukuoka, JP;
Yoshiteru Tsuchinaga, Fukuoka, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
A decoded sound analysis unit () calculates, regarding the frequency-region stereo signals L(b) and R(b) decoded by the PS decoding unit (), a second degree of similarity () and a second intensity difference () from the decoded sound signals. A spectrum correction unit () detects a distortion added by the parametric-stereo conversion by comparing the second degree of similarity () and the second intensity difference () calculated at the decoding side with the first degree of similarity () and the first intensity difference () calculated and transmitted from the encoding side, and corrects the spectrum of the frequency-region stereo decoded signals L(b) and R(b).