Character graphics color display system

Details Character graphics color display system Character graphics color display system

1978-12-11

1980-08-12

Trafton, David L.

Communications: electrical

Land vehicle alarms or indicators

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

340750, 340799, 340801, G06K 1520

Patent

active

042175771

ABSTRACT:
Mixed color effects in a character graphics display system are achieved by providing font characters comprising several character cells with different patterns which can selectively be read simultaneously to different color registers, thereby determining the color in which each character cell is to be displayed. The system also provides characters comprising only a single character cell which can selectively be directed to any of the color registers. A control system interprets color bits in a control word in accordance with the type of character being accessed.

REFERENCES:
patent: 3771155 (1973-11-01), Hayashi et al.
patent: 3854130 (1974-12-01), Ligocki
patent: 3944999 (1976-03-01), Moore
patent: 4101879 (1978-07-01), Kawaji et al.

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