Optical signal transmitter

Details Optical signal transmitter Optical signal transmitter

G - Physics

08

G

325/1, 340/36

G08G 1/07 (2006.01) G08C 23/04 (2006.01) G08G 1/087 (2006.01)

Patent

CA 1133990

- 1 - ABSTRACT An optical signal transmitter for use by priority vehicles for remotely controlling traffic signals including a light source which is flashed at a controlled repetition rate to transmit an optical signal to a receiver located at the traffic inter- section. Circuitry associated with the light source includes a comparator network for disabling an electri- cal energy supply in the event of certain predetermined operating conditions.

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