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:
May. 14, 2002
Filed:
May. 21, 1999
Applicant:
Inventors:
Masahiko Ito, Chiba, JP;
Naoya Kato, Chiba, JP;
Assignee:
Sony Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G09G 5/04 ;
U.S. Cl.
CPC ...
G09G 5/04 ;
Abstract
When an output color gamut is different from an input color gamut in a picture input/output system such as DTP, the color is corrected with a predetermined function for a difference in the lightness-directional dynamic range. A three-dimensional compression is made to compress the color of areas C and D to an area (A+B), and next a two-dimensional compression (or shrinkage) is made to compress the color of the area (B+C) to the area B, for example.