Computer graphics processing and selective visual display system – Computer graphics processing – Attributes
Reexamination Certificate
2007-05-22
2008-08-26
Tung, Kee M. (Department: 2628)
Computer graphics processing and selective visual display system
Computer graphics processing
Attributes
C345S603000, C345S604000
Reexamination Certificate
active
07417643
ABSTRACT:
In order to provide an image processing system and the like that can reproduce colors more appropriately, a projector is provided with a calibration signal generation section that generates a calibration signal for a white image and calibration signals for three subtracted-primary-color images, each of which is obtained by subtracting a predetermined input value from the RGB values of a predetermined primary color, one of plurality of kinds of primary colors that together form white; an image projection section for displaying each calibration image, based on the corresponding calibration signal; a sensing section for sensing each displayed calibration image; a primary-color amount information generation section for calculating a difference between sensing signal values and calculating an image signal value for the highest output value of each of the RGB colors, based on that difference; an ambient-light amount information generation section for calculating an ambient-light amount based on differences between image signal values; and a correction information generation section for generating correction information for applying corrections, based on the highest output value for each of the RGB colors and the ambient-light amount.
REFERENCES:
patent: 6765585 (2004-07-01), Wada
patent: 6927784 (2005-08-01), Matsuda et al.
patent: 2002/0154138 (2002-10-01), Wada et al.
patent: 2004/0212783 (2004-10-01), Wada
patent: 1410872 (2003-04-01), None
patent: 0 562 974 (1993-09-01), None
patent: 0 989 757 (2000-03-01), None
patent: 1 223 753 (2002-07-01), None
patent: A 06-217242 (1994-08-01), None
patent: A 10-093984 (1998-04-01), None
patent: A 2001-320725 (2001-11-01), None
patent: A 2002-072364 (2002-03-01), None
patent: A 2002-90880 (2002-03-01), None
patent: A 2002-140060 (2002-05-01), None
patent: A 2002-369227 (2002-12-01), None
patent: A 2003-108109 (2003-04-01), None
patent: A 2003-339056 (2003-11-01), None
patent: A 2004-163809 (2004-06-01), None
Oliff & Berridg,e PLC
Seiko Epson Corporation
Tung Kee M.
Xu Kevin K
LandOfFree
Image processing system, projector, storage medium, and... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Image processing system, projector, storage medium, and..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Image processing system, projector, storage medium, and... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4004657