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:
Jul. 24, 2007
Filed:
May. 27, 2003
Takayuki Ogura, Chiba, JP;
Masatoshi Takashima, Tokyo, JP;
Takayuki Ogura, Chiba, JP;
Masatoshi Takashima, Tokyo, JP;
Sony Corporation, Tokyo, JP;
Abstract
This invention is an MPEG decoding apparatus () for decoding a compression-coded image data stream, the apparatus including a motion compensation circuit () and error map table holding means () for holding an error map table with respect to a decoded frame to be referred to in performing motion compensation. When the error map table is referred to and an error block is found to be included in a reference area, or when dynamic image data of a decoding target block is broken, the motion compensation circuit () performs error conceal processing to interpolate a pixel in the decoding target block with a pixel in the decoded frame and output the resulting data. The motion compensation circuit () generates an error map table showing the error-concealed block as an error block and stores this error map table. This MPEG decoding apparatus () restrains propagation of an error due to the error conceal processing and reduces deterioration in image quality.