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:
Mar. 19, 2013
Filed:
Oct. 28, 2009
Tao Chen, Diamond Bar, CA (US);
Jiuhuai LU, Palos Verdes Peninsula, CA (US);
Yoshiichiro Kashiwagi, Arcadia, CA (US);
Shinya Kadono, Hyogo, JP;
Chong Soon Lim, Singapore, SG;
Tao Chen, Diamond Bar, CA (US);
Jiuhuai Lu, Palos Verdes Peninsula, CA (US);
Yoshiichiro Kashiwagi, Arcadia, CA (US);
Shinya Kadono, Hyogo, JP;
Chong Soon Lim, Singapore, SG;
Panasonic Corporation, Osaka, JP;
Abstract
The picture decoding method according to the present invention is a decoding method for decoding coded pictures by inverse quantization and inverse orthogonal transformation, in which a quantization matrix which defines a scaling ratio of a quantization step for each component is multiplied by a multiplier, which is a coefficient for frequency transformation or a quantization step, and also, a result of the multiplication is multiplied by a quantized value, as a process of inverse quantization.