Patent
1995-04-28
1997-07-15
Tung, Kee M.
395513, 395515, G06T 160
Patent
active
056491727
ABSTRACT:
An image register for a graphics display includes a pair of static random access memory (SRAM) devices for respectively storing image data associated with even numbered and odd numbered pixels, which correspond to even numbered and odd numbered addresses. The register includes a counter presettable to an initial value corresponding to a starting address of the stored image data. A half adder is coupled to the counter for addressing the SRAMs according to an even and odd state. Two NAND gates responsive to the least significant bit of the counter control the two SRAMs for simultaneously writing image data having a modified color code portion into the even SRAM and reading stored image data from the odd SRAM during an even state, and for simultaneously reading stored image data from the even SRAM and writing the modified color code into the odd SRAM during an odd state. The register includes a pair of full adders to mix an incoming color code with the stored color code to obtain the modified color code. The simultaneous access to consecutive pixels enables parallel processing to occur, thus improving execution speed.
REFERENCES:
patent: 4893114 (1990-01-01), Ishii
patent: 4924432 (1990-05-01), Asai et al.
patent: 5036475 (1991-07-01), Ueda
patent: 5170445 (1992-12-01), Nelson et al.
patent: 5179639 (1993-01-01), Taaffe
patent: 5293483 (1994-03-01), Mizoba et al.
Nguyen Cao
Tung Kee M.
United Microelectronics Corp.
LandOfFree
Color mixing device using a high speed image register does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Color mixing device using a high speed image register, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Color mixing device using a high speed image register will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1499807