Computer graphics processing and selective visual display system – Computer graphics processing – Attributes
Reexamination Certificate
2007-06-26
2007-06-26
Shalwala, Bipin (Department: 2629)
Computer graphics processing and selective visual display system
Computer graphics processing
Attributes
C345S600000, C345S602000, C345S589000
Reexamination Certificate
active
10604599
ABSTRACT:
A color conversion apparatus and a method of color conversion are described for converting a first color in a first color space to a second color in a second color space. The color conversion apparatus includes a plurality of lookup tables storing color mappings relating the first color space to the second color space and a converter using the lookup tables to convert the first color to the second color. The first color space is the sRGB color space and the second color space is a device dependent color space, or vice versa. To reduce the table size, tables having little effect on the second color contain groups of input colors mapping to a same output color and are implemented with a memory having the address inputs connected to the upper most significant bits of an incoming color value. A gamma correction circuit is used to calculate the remaining tables.
REFERENCES:
patent: 5272468 (1993-12-01), Read
patent: 5579031 (1996-11-01), Liang
patent: 5596510 (1997-01-01), Boenke
patent: 5841422 (1998-11-01), Shyu
patent: 6043804 (2000-03-01), Greene
patent: 6211917 (2001-04-01), Shyu
patent: 6333762 (2001-12-01), Yoo et al.
patent: 6342896 (2002-01-01), Shetter et al.
patent: 6388648 (2002-05-01), Clifton et al.
patent: 6522778 (2003-02-01), Tamagawa
patent: 6621497 (2003-09-01), Sugiura et al.
patent: 6654026 (2003-11-01), Lee
patent: 6694061 (2004-02-01), Acharya
patent: 6774953 (2004-08-01), Champion et al.
patent: 7015839 (2006-03-01), Chang et al.
patent: 7068283 (2006-06-01), Huang
patent: 7176938 (2007-02-01), Feng
patent: 2001/0033287 (2001-10-01), Naegle et al.
patent: 2003/0234795 (2003-12-01), Lee
Chen Issac
Gong Jin-Sheng
Ho Hung-Hui
Dharia Prabodh
Hsu Winston
Realtek Semiconductor Corp.
Shalwala Bipin
LandOfFree
Apparatus for color conversion and method thereof does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus for color conversion and method thereof, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for color conversion and method thereof will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3868420