Color video display system having programmable border color

Details Color video display system having programmable border color Color video display system having programmable border color

1981-08-12

1984-03-13

Curtis, Marshall M.

Communications: electrical

Land vehicle alarms or indicators

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

340730, 340734, G09G 128

Patent

active

044370920

ABSTRACT:
A central processing unit (10) loads a border register (36) with four color bits representing digital color signals to be used in determining the color of only the border area (40) surrounding the video area (42) of a cathode ray tube display screen (44). A BORDER CONTROL TIME signal is generated at the appropriate times in the horizontal and vertical scanning periods of the cathode ray tube to apply the digital color border signals (R, G, G, I) to a composite video signal generator (38) which generates the composite video signal for a TV set (14) or a TV monitor.

REFERENCES:
patent: 4093221 (1978-06-01), Dash
patent: 4149184 (1979-04-01), Giddings et al.
patent: 4155095 (1979-05-01), Kirschner

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