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:
Oct. 06, 2015
Filed:
Nov. 12, 2010
Tomofumi Yamanashi, Kanagawa, JP;
Toshiyuki Morii, Kanagawa, JP;
Tomofumi Yamanashi, Kanagawa, JP;
Toshiyuki Morii, Kanagawa, JP;
PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA, Torrance, CA (US);
Abstract
A coding apparatus is provided that improves the quality of a decoded signal in a hierarchical coding (scalable coding) scheme in which a coding target band is selected in each hierarchy (layer). The coding apparatus includes a first layer coding section that selects a first quantization target band of inputted spectrum and generates first layer coded information including first band information of the selected band. An adder generates a first layer difference spectrum using a first decoded signal generated using the first layer coded information and the inputted spectrum. A second layer coding section generates second layer coded information including second band information of the selected band, wherein first layer coding section determines a method of quantizing the gain of the inputted spectrum from a plurality of candidates based on the first band information and second band information.