Changeable signboard

Details Changeable signboard Changeable signboard

1993-12-10

1996-06-18

Hjerpe, Richard

Computer graphics processing and selective visual display system

Plural physical display element control system

Display elements arranged in matrix

40473, 40503, 34081587, 34081558, G09G 300

Patent

active

055282580

ABSTRACT:
A changeable signboard, in which each turning pole is operated by a stepping motor, has three advertisement faces and turns clockwise and counterclockwise at a predetermined degree, thus displaying a certain pattern according to the electronic circuit. As many turning poles as needed can be arranged and one can show linear or curved images and diversify the patterns of advertisements.

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