Computer graphics processing and selective visual display system – Computer graphics processing – Attributes
Reexamination Certificate
2006-03-28
2009-06-30
Amini, Javid A (Department: 2628)
Computer graphics processing and selective visual display system
Computer graphics processing
Attributes
C345S427000, C345S645000, C382S166000, C382S232000
Reexamination Certificate
active
07554557
ABSTRACT:
An image compression device includes a floating-point texture-loading unit, a shader, a RGB to YCrCb compressor, and a parameter adjusting unit. The floating-point texture-loading unit receives raw image data that includes N number of RGB pixels. The shader receives the raw image data and shades the N number of RGB pixels. The RGB to YCrCb compressor receives the shaded image data and calculates the brightness/chroma value of each of the RGB pixels, wherein the chroma value of the RGB pixel having the smallest brightness value among all the RGB pixels is selected as a common chroma value for all the RGB pixels. The parameter adjusting unit receives and adjusts N number of brightness values of the RGB pixels and the common chroma value and stores them in a form of compressed image data into a memory.
REFERENCES:
patent: 5463570 (1995-10-01), Nakata
patent: 5568192 (1996-10-01), Hannah
patent: 5822452 (1998-10-01), Tarolli et al.
patent: 6384838 (2002-05-01), Hannah
patent: 6594385 (2003-07-01), Grohs et al.
patent: 6621499 (2003-09-01), Callway
patent: 6825853 (2004-11-01), Jiang et al.
patent: 6826301 (2004-11-01), Glickman
patent: 6898323 (2005-05-01), Schwartz et al.
patent: 7154507 (2006-12-01), Moreton et al.
patent: 7158681 (2007-01-01), Persiantsev
patent: 7164804 (2007-01-01), Boliek et al.
patent: 2001/0043753 (2001-11-01), Grohs et al.
patent: 2005/0168477 (2005-08-01), Schoner
Amini Javid A
Muncy Geissler Olds & Lowe, PLLC
Silicon Integrated Systems Corp.
LandOfFree
Device and method for image compression and decompression does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Device and method for image compression and decompression, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Device and method for image compression and decompression will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4059383