Computer graphics processing and selective visual display system – Computer graphics display memory system – Texture memory
Reexamination Certificate
2002-04-03
2008-08-26
Tung, Kee M. (Department: 2628)
Computer graphics processing and selective visual display system
Computer graphics display memory system
Texture memory
C345S564000, C345S568000, C345S572000, C345S582000, C345S609000, C382S260000
Reexamination Certificate
active
07417639
ABSTRACT:
There are provided a drawing device and an information processing apparatus which are capable of reading out texture data from a memory at a high speed. A storage circuit stores respective information items of each of texture pixels constituting the texture data and at least one texture pixel in a vicinity of the each of the texture pixels, in a continuously-accessible region thereof. An address calculation circuit calculates, based on texture coordinates corresponding to each pixel of the polygons, an address where a corresponding set of the information items are stored. A readout circuit reads out the corresponding set of the information items from the address calculated by the address calculation circuit. A synthesis circuit synthesizes the corresponding set of the information items read out by the readout circuit. A drawing circuit draws, based on texture pixel information synthesized by the synthesis circuit, a corresponding pixel of the polygons.
REFERENCES:
patent: 5689592 (1997-11-01), Ericsson et al.
patent: 5886705 (1999-03-01), Lentz
patent: 5977994 (1999-11-01), Greenberg et al.
patent: 6002407 (1999-12-01), Fadden
patent: 6084601 (2000-07-01), Thayer
patent: 6353438 (2002-03-01), Van Hook et al.
patent: 6614443 (2003-09-01), Peterson
patent: 0 345 672 (1989-12-01), None
patent: 0 810 553 (1997-12-01), None
patent: 11-154237 (1999-06-01), None
patent: 11-272548 (1999-10-01), None
Japan Abstract, 11-272548, Oct. 8, 1999.
Search Report for corresponding European Appln. No. 02252713.9.
Caschera Antonio A.
Fujitsu Limited
Staas & Halsey , LLP
Tung Kee M.
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