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. 24, 2002
Filed:
Jul. 26, 2000
Shohei Taniguchi, Yokohama, JP;
Makoto Yamauchi, Sagamihara, JP;
Abstract
A band splitting section a splits an encoder input signal s entered into a subband encoding apparatus, into k band components. The band splitting section a outputs a subband signal s for each of n (<k) split bands, where n is determined by a processible upper-limit frequency on each application. A scale factor producing section a detects a maximum amplitude level of the subband signal s for each of n split bands. Then, the scale factor producing section a produces scale factor information s representing a normalized scale factor. A bit allocation producing section a outputs bit allocation information s for each of n split bands. A bit allocation value is assigned to each of (n+1) to k split bands. A requantizng section a requalizes the subband signal s for each split band. A frame constructing section a constructs a coded frame.