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:
Nov. 20, 2018
Filed:
Sep. 13, 2016
Fraunhofer-gesellschaft Zur Foerderung Der Angewandten Forschung E.v., Munich, DE;
Takuya Kawashima, Ishikawa, JP;
Masahiro Oshikiri, Osaka, JP;
Abstract
A coding apparatus, including a memory and a processor that, when executing instructions stored in the memory, performs operations including encoding low-band transform coefficients in a first band and calculating, for each extension-band subband obtained by splitting an extension band, a threshold amplitude based on an analysis of statistics on extension-band transform coefficients included in the subband. The processor further compares, for each of the extension-band subbands, an amplitude of the extension-band transform coefficients with the threshold amplitude to extract a representative transform coefficient, updates, when a number of the extracted representative transform coefficients is less than a predetermined number, the threshold amplitude, performs processing to again extract a transform coefficient using the updated threshold amplitude, calculates, for each of the extension-band subbands, a value of correlation between the representative transform coefficient and a normalized encoded low-band transform coefficient.