Apparatus and method for simultaneous display of characters of v

Details Apparatus and method for simultaneous display of characters of v Apparatus and method for simultaneous display of characters of v

1981-07-06

1984-03-06

Curtis, Marshall M.

Communications: electrical

Land vehicle alarms or indicators

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

340744, 340749, 340731, G09G 116

Patent

active

044357036

ABSTRACT:
Apparatus and method for simultaneous display of alphanumeric characters of variable character density on a raster scan CRT monitor is disclosed. Circuitry is provided to supply multiple sources of timing for terminal operations, to switch among timing sources without display degradation, and to vary the number of dots per raster line that constitute a character field. The density of displayed characters may be changed, under user control, for each character row.

REFERENCES:
patent: 3896428 (1975-07-01), Williams
patent: 3903517 (1975-09-01), Hafner
patent: 3999168 (1976-12-01), Findley et al.

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