Pulse width modulation conversion circuit for controlling a colo

Details Pulse width modulation conversion circuit for controlling a colo Pulse width modulation conversion circuit for controlling a colo

1982-08-30

1985-05-07

Curtis, Marshall M.

Communications: electrical

Land vehicle alarms or indicators

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

340793, 358 12, 358283, 315385, G09G 128

Patent

active

045161186

ABSTRACT:
A video display terminal (VDT) is provided with a controller having six digital logic lines capable of defining sixty-four different colors. An eight color color display monitor (CDM) having three red, green and blue (RGB) video input lines is connected to a pulse width modulation converter capable of converting the sixty-four digital input conditions on the six low level voltage logic lines to sixty-four different color control conditions on the three video input lines.

REFERENCES:
patent: 3294896 (1966-12-01), Young, Jr.
patent: 3821796 (1974-06-01), Ernstoff et al.
patent: 3829613 (1974-08-01), Melchior
patent: 3944999 (1976-03-01), Moore
patent: 4149183 (1979-04-01), Pellar et al.
patent: 4149184 (1979-04-01), Giddings et al.
patent: 4340889 (1982-07-01), Knight et al.
patent: 4383256 (1983-05-01), Kurahashi et al.
patent: 4438453 (1984-03-01), Alston
patent: 4442428 (1984-04-01), Dean et al.

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