Computer graphics processing and selective visual display system – Computer graphic processing system – Integrated circuit
Reexamination Certificate
2011-01-11
2011-01-11
Washburn, Daniel (Department: 2628)
Computer graphics processing and selective visual display system
Computer graphic processing system
Integrated circuit
C345S520000, C710S308000, C710S309000, C710S312000
Reexamination Certificate
active
07868892
ABSTRACT:
An object of the present invention is to improve efficiency of transfer of control information, graphic data, and the like for drawing and display control in a graphic data processor. A graphic data processor includes: a CPU; a first bus coupled to the CPU; a DMAC for controlling a data transfer using the first bus; a bus bridge circuit for transmitting/receiving data to/from the first bus; a three-dimensional graphics module for receiving a command from the CPU via the first bus and performing a three-dimensional graphic process; a second bus coupled to the bus bridge circuit and a plurality of first circuit modules; a third bus coupled to the bus bridge circuit and second circuit modules; and a memory interface circuit coupled to the first and second buses and the three-dimensional graphic module and connectable to an external memory, wherein the bus bridge circuit can control a direct memory access transfer between an external circuit and the second bus.
REFERENCES:
patent: 5434959 (1995-07-01), Von Ehr et al.
patent: 6058459 (2000-05-01), Owen et al.
patent: 6128026 (2000-10-01), Brothers
patent: 6525738 (2003-02-01), Devins et al.
patent: 6535217 (2003-03-01), Chih et al.
patent: 6608625 (2003-08-01), Chin et al.
patent: 6631431 (2003-10-01), Silvkoff et al.
patent: 6701405 (2004-03-01), Adusumilli et al.
patent: 6754509 (2004-06-01), Khan et al.
patent: 6947057 (2005-09-01), Nelson et al.
patent: 2003/0039409 (2003-02-01), Ueda
patent: 2003/0218608 (2003-11-01), Chin et al.
patent: 2004/0046761 (2004-03-01), Hellman et al.
patent: 06-028486 (1994-02-01), None
patent: 2003-208631 (2003-07-01), None
Hamasaki Hiroyuki
Hara Hirotaka
Hirade Kazuhiro
Saeki Mitsuhiro
Takano Makoto
Miles & Stockbridge P.C.
Renesas Electronics Corporation
Washburn Daniel
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