Display of graphics using a non-all points addressable display

Details Display of graphics using a non-all points addressable display Display of graphics using a non-all points addressable display

1983-05-11

1985-12-03

Curtis, Marshall M.

Communications: electrical

Land vehicle alarms or indicators

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

340722, 340747, 340793, G09G 100

Patent

active

045568782

ABSTRACT:
A processor controlled character box display is provided with apparatus which permits the display of curvilinear graphics. The characters used to generate the graphics display are selected from a limited character set in read only storage (46), but by shifting the characters up or down by less than a full line index to provide additional character positions, it is possible to produce curvilinear graphics without the need for further character generation. Since the graphics display is a low resolution display, it is necessary to make a best dot selection in order to map the print bit map into the character box display.

REFERENCES:
patent: 3509350 (1970-04-01), Gundrum
patent: 3781850 (1973-12-01), Gicca et al.
patent: 4467322 (1984-08-01), Bell et al.
A Cell Organized Raster Display for Line Drawings Jordan, Jr., et al.; Comm. of the ACM; pp. 70-77; vol. 17, No. 2, 2/74.

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