Electronic billboard

Details Electronic billboard Electronic billboard

1992-02-27

1993-10-26

Chin, Tommy P.

Computer graphics processing and selective visual display system

Data responsive crt display control

Data responsive deflection control

358252, 358231, 345 10, G09G 108

Patent

active

052570177

ABSTRACT:
An electronic billboard sign is provided in which electro-micro circuitry programming is utilized to display advertising information onto a large front billboard screen by a large moveable lens.

REFERENCES:
patent: 2779938 (1957-01-01), Pifer
patent: 3560649 (1971-02-01), Anderson
patent: 3728711 (1973-04-01), Adkins
patent: 3930251 (1975-12-01), Salava et al.
patent: 3967265 (1976-06-01), Jacob

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