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. 11, 2008
Filed:
Apr. 30, 2004
Hidetoshi Onuma, Tokyo, JP;
Kohichi Murohashi, Yokohama, JP;
Hidetoshi Onuma, Tokyo, JP;
Kohichi Murohashi, Yokohama, JP;
Texas Instruments Incorporated, Dallas, TX (US);
Abstract
This invention controls the code generation quantity adaptively with respect to the pattern of images and changes in the images, etc., so as to alleviate degradation in image quality, and to effectively reduce the spatial redundancy in order to provide a margin in the code quantity and to improve the overall image quality. An adaptive filter has a coefficient table memory that holds N coefficient tables, filter coefficients F, F. . . Fthat provide different filtering characteristics, a filter coefficient selectingfor selecting one filter coefficient Ffrom filter coefficient tables and filter calculating unit performing prescribed calculations on the DCT coefficients using the selected filter coefficient F.