Graphic processing apparatus with clipping circuit

Details Graphic processing apparatus with clipping circuit Graphic processing apparatus with clipping circuit

1983-11-21

1988-04-05

Brigance, Gerald L.

Communications: electrical

Land vehicle alarms or indicators

Internal alarm or indicator responsive to a condition of the...

340721, 340723, 340803, G09G 116

Patent

active

047362006

ABSTRACT:
A graphic apparatus of the invention having a clip function includes a clip register storing coordinates of points defining a display designation clip area. The contents of the clip register and an address supplied to a bit map memory are compared by a comparator. Control operation for clipping is performed such that only data falling within the clip area is written in the bit map memory in accordance with the comparison result of the comparator.

REFERENCES:
patent: 4243987 (1981-01-01), Bobick
patent: 4437093 (1984-03-01), Bradley
patent: 4492956 (1985-01-01), Collmeyer et al.
patent: 4545070 (1985-10-01), Miyagawa et al.
patent: 4586036 (1986-04-01), Thomason et al.

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