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.

Date of Patent:
May. 31, 2011

Filed:

Feb. 07, 2006
Applicants:

Tetsujiro Kondo, Tokyo, JP;

Sakon Yamamoto, Tokyo, JP;

Inventors:

Tetsujiro Kondo, Tokyo, JP;

Sakon Yamamoto, Tokyo, JP;

Assignee:

Sony Corporation, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N 1/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

An image processing system includes a coding device configured to code input image data, and a decoding device configured to decode the coded input image data, wherein, if coding and decoding are repeated on the input image data, the image quality of an image corresponding to the input image data is deteriorated. The decoding device includes an input section inputting quantized data in which the input image data is quantized; and a decoding section dequantizing the quantized data that is input by the input section and converting a dequantized value obtained as a result of the quantization into a value in the vicinity of the boundary of a quantization threshold value within a range corresponding to the dequantized value when the quantization is performed.


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