Graphics microcomputer for generating geometric figures

Details Graphics microcomputer for generating geometric figures Graphics microcomputer for generating geometric figures

1991-08-20

1993-11-09

Harkcom, Gary V.

395142, 395133, G06F 1562

Patent

active

052610349

ABSTRACT:
A small size graphic microcomputer provided with a direction control circuit and a coordinate computing circuit, which allow for finer control over the direction in which a dot of interest is moving. The sequence of operations from the calculation of coordinates through address generation is carried out sequentially so that addresses in the drawing memory can be obtained at high speed in response to each output clock.

REFERENCES:
patent: 4149165 (1979-04-01), Herman et al.
"Algorithm for Computer Control of a Digital Plotter", by J. E. Bresenham, pp. 24-30 (1965).
"An Analysis of Floating-Point Addition", by D. W. Sweeney, p. 30 (1965).
"A Linear Algorithm for Incremental Digital Display of Circular Arcs", by Jack Bresenham, pp. 100-106 for IBM Systems Communications Division (1977).
"Curves and Surfaces" pp. 309-331 (1988).
"A High Speed Outline Font Rasterizing LSI" by Naoyuki Kai, Tsutomu Minagawa, Ichiro Nagashima and Ichiro Ohhashi (1989).

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