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. 27, 2008
Filed:
Jul. 26, 2002
Hiroyuki Kobayashi, Kanagawa, JP;
Naoya Matsuda, Tokyo, JP;
Makoto Haitani, Kanagawa, JP;
Kenichiro Saito, Tokyo, JP;
Hiroyuki Kobayashi, Kanagawa, JP;
Naoya Matsuda, Tokyo, JP;
Makoto Haitani, Kanagawa, JP;
Kenichiro Saito, Tokyo, JP;
Sony Corporation, Tokyo, JP;
Abstract
A nonlinearly processed (gamma-corrected) video signal is subjected to three-dimensional signal level correction using three-dimensional correction values and corresponding to a position in a horizontal direction and a vertical direction of a pixel on a display screen of an image display unit and the signal level of the pixel data. Thereby, accurate gamma correction is made possible, and horizontal and vertical area information (grid block) can be disposed in an optimum positional relation according to resolution of the screen.