US 6,982,727 B2
System and method for providing graphics using graphical engine
David A. Baer, San Jose, Calif. (US); and Darren Neuman, San Jose, Calif. (US)
Assigned to Broadcom Corporation, Irvine, Calif. (US)
Filed on Jul. 23, 2002, as Appl. No. 10/201,017.
Prior Publication US 2004/0017383 A1, Jan. 29, 2004
Int. Cl. G09G 5/00 (2006.01)
U.S. Cl. 345—629 30 Claims
OG exemplary drawing
 
1. A system for providing layered graphics in a video environment, the system comprising:
a bus;
a graphical engine coupled to the bus, the graphics engine being adapted to receive information of a plurality of graphical layers over the bus and composite the plurality of graphical layers into a composite graphical layer, the graphical engine comprising a memory that stores the composite graphical layer;
a graphical pipeline coupled to the bus, the graphical pipeline being adapted to transport the composite graphical layer over the bus;
a cursor Color Look-Up Table (CLUT); and
a compositor coupled to the cursor CLUT and the graphical pipeline, the compositor being adapted to composite contents of the cursor CLUT and contents of the graphical pipeline.