Three-dimensional computer graphics apparatus with two-port memo

Details Three-dimensional computer graphics apparatus with two-port memo Three-dimensional computer graphics apparatus with two-port memo

1988-09-29

1991-04-02

Williams, Jr., Archie E.

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3642372, 3642373, 3642377, 364239, 364244, 3642448, 3642474, 364259, 3642592, 3642715, 358 92, 358107, G06F 3153, G06F 1570, G09G 116

Patent

active

050051172

ABSTRACT:
Depth information is stored in a 2-port memory having a random port and a serial port. The depth information is read out from the serial port of the 2-port memory and is supplied to an integrated circuit. The integrated circuit performs pipeline processing by using the depth information read out from the 2-port memory. If write-in is necessary as a result of the pipeline processing, the processed depth information is supplied to the random port of the 2-port memory, and the depth information is stored once again in the 2-port memory.

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patent: 4697178 (1987-09-01), Heikel
patent: 4723159 (1988-02-01), Imsand
patent: 4839824 (1989-06-01), Ando
Foley et al., Fundamentals of Interactive Computer Graphics, pp. 553-573, 1982.
Patent Abstracts of Japan, vol. 9, No. 269 (P-400) [1992], Oct. 26, 1985 for Japanese Patent Disclosure No. 60 114970A; S. Takahashi; Jun. 21, 1985.
Ohhashi et al., "A 32b 3-D Graphic Processor Chip with COM Pixels/s Gouraud Shading," IEEE International Solid-State Circuits Conference Digest of Technical Papers, pp. 168, 169, Feb. 18, 1988.
U.S. Patent Application 07/101,980 filed Sep. 28, 1987.

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