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:
Sep. 17, 2013
Filed:
Apr. 21, 2005
Mikiko Hama, Tokyo, JP;
Takeshi Harano, Tokyo, JP;
Mikiko Hama, Tokyo, JP;
Takeshi Harano, Tokyo, JP;
Sony Corporation, Tokyo, JP;
Abstract
A simple compression and decompression method provides excellent effects by reducing the storage capacity of an image memory, while adapting to the properties of image. On the basis of luminance information extracted by a luminance extraction blocka compression conversion rule setting blocksets a compression conversion rule to a compression conversion tableIn accordance with this compression conversion rule, an image compression blockcompresses original image data and holds the compressed image data in an image memoryalong with a type of the compression conversion rule. This type of the compression conversion rule held in the image memoryis extracted by a decompression conversion rule setting blockIn accordance with this type, a decompression conversion rule is set to a decompression conversion tableIn accordance with the decompression conversion rule set to the decompression conversion tablean image decompression blockdecompresses the compressed image data held in the image memory