Video character generator

Details Video character generator Video character generator

1981-09-14

1983-10-04

Trafton, David L.

Communications: electrical

Land vehicle alarms or indicators

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

340730, 340748, G09G 116

Patent

active

044081987

ABSTRACT:
Digital apparatus for generating video characters with various kinds of edging is disclosed. The apparatus employs a plurality of digital delay registers which are used to generate a replica of the video information which is delayed by a preselected number of scan lines. The video information together with the delayed signals produced by the delay registers are provided to a pair of shift registers which generate fixed background patterns depending on the kind of edge information which is selected and a character body signal. The background pattern and the character body signal are then combined to produce the final video character output.

REFERENCES:
patent: 3781849 (1973-12-01), Baron et al.
patent: 3918039 (1975-11-01), Clark
patent: 3984828 (1976-10-01), Beyers
patent: 4186393 (1980-01-01), Leventer

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