Display driving system for driving two or more different types o

Details Display driving system for driving two or more different types o Display driving system for driving two or more different types o

1985-04-16

1990-05-15

Brier, Jeffrey A.

Communications: electrical

Land vehicle alarms or indicators

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

340720, 340784, G09G 100

Patent

active

049261665

ABSTRACT:
A display circuit for driving two or more different displays includes a display memory for storing display data, an address signal generation circuit for generating address signals for the display memory, basic timing generation circuit for generating basic timing signals, an address control circuit for controlling a determination of the address of the display memory along the horizontal- and vertical-direction of the displays, and a switching circuit for switching the horizontal- and vertical-direction timing signals depending upon which one of the two or more display is selected, whereby the two or more displays are independently operated.

REFERENCES:
patent: 3648249 (1972-03-01), Goldsberry
patent: 3872446 (1975-03-01), Chambers
patent: 3961365 (1976-06-01), Payne et al.
patent: 4110794 (1978-08-01), Lester et al.
patent: 4112423 (1978-09-01), Bertolasi
patent: 4344145 (1982-08-01), Chasek
patent: 4443819 (1984-04-01), Funada et al.
patent: 4485380 (1984-11-01), Soneda
patent: 4486857 (1984-12-01), Heckel
patent: 4550386 (1985-10-01), Hirosawa et al.
German Journal: ntz, vol. 33, (1980), No. 4, pp. 230-236.

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