Multiple font display control

Details Multiple font display control Multiple font display control

1980-05-27

1982-02-16

Waring, Alvin H.

Communications: electrical

Land vehicle alarms or indicators

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

3401463MA, 340732, 340750, G06K 1520

Patent

active

043161880

ABSTRACT:
The apparatus is for controlling the generation of dot matrix characters of a plurality of fonts for display on the screen of a cathode ray tube. The apparatus uses character generators responsive to signals representing a code specifying a particular character. The character generator for each font is driven by a clock derived from a single clock source. The outputs of the character generators can be selectively used to control the duty cycle of the cathode ray tube electron beam so as to display characters all of one font or mixed from all fonts.

REFERENCES:
patent: 3721856 (1973-03-01), Dick
patent: 3792462 (1974-02-01), Casey
patent: 3803583 (1974-04-01), Manber
patent: 3903517 (1975-09-01), Haffner
patent: 4052719 (1977-10-01), Hutt
patent: 4087808 (1978-05-01), Herndon, Jr.
patent: 4107786 (1978-08-01), Masaki
patent: 4121283 (1978-10-01), Walker

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