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:
Jul. 17, 2012
Filed:
Dec. 18, 2009
Masanao Suzuki, Kawasaki, JP;
Masakiyo Tanaka, Kawasaki, JP;
Miyuki Shirakawa, Fukuoka, JP;
Yoshiteru Tsuchinaga, Fukuoka, JP;
Masanao Suzuki, Kawasaki, JP;
Masakiyo Tanaka, Kawasaki, JP;
Miyuki Shirakawa, Fukuoka, JP;
Yoshiteru Tsuchinaga, Fukuoka, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
A decoding apparatus includes a unit decoding and inversely quantizing coded data to obtain frequency domain audio signal data, a unit computing from the coded data one of the number of scale bits composed of the number of bits corresponding to the scale value of the coded data and the number of spectrum bits composed of the number of bits corresponding to the spectrum value of the coded data, a unit estimating a quantization error of the frequency domain audio signal data based on one of the number of scale bits and the number of spectrum bits of the coded data, a unit computing a correction amount based on the estimated quantization error and correct the frequency domain audio signal data obtained by the frequency domain data obtaining unit based on the computed correction amount, and a unit converting the corrected frequency domain audio signal data into the audio signal.