Graphic display controller

Details Graphic display controller Graphic display controller

1989-07-11

1993-07-06

Clark, D. L.

G06F 314

Patent

active

052261190

ABSTRACT:
A graphic memory in which a bit of storage element is allocated to each pixel of an image to be displayed on a CRT monitor is provided. A source data transferred by a direct memory access controller is shifted by a barrel shift circuit. The resultant data and the data read from the graphic memory are subjected to an operation, and the obtained data is again stored in the graphic memory.

REFERENCES:
patent: 3976982 (1976-08-01), Eiselen
patent: 4070710 (1978-01-01), Sukonick et al.
patent: 4165506 (1979-08-01), Brands et al.
patent: 4615018 (1986-09-01), Sakano
patent: 4616220 (1986-10-01), Grunewald et al.
patent: 4635049 (1987-01-01), Dodge et al.
patent: 4701863 (1987-10-01), Bruce

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