Automotive communication

Details Automotive communication Automotive communication

1980-07-18

1982-11-30

Caldwell, Sr., John W.

Communications: electrical

Digital comparator systems

340 87, 340124, 340365R, 340790, 340798, 340808, 40489, B60Q 100, G08C 908, G09F 900

Patent

active

043618286

ABSTRACT:
A vehicle communication system device consisting of an opto-electrical message display unit adapted to be viewed from the exterior of the vehicle and of a message control unit that is connected to the display unit for programming a message and transmitting an electrical pulse pattern to the display unit that causes the display unit to display the programmed message.

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patent: 4109245 (1978-08-01), Hedin
patent: 4218603 (1980-08-01), Satoh

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