Safe radio control system

Telecommunications – Transmitter and receiver at separate stations – Distortion – noise – or other interference prevention,...

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Details

455132, 455140, 34082575, H04B 110, H04B 1500

Patent

active

057349681

ABSTRACT:
A remote control system for actuating special effects theatrical devices is disclosed in which a transmitter generates and transmits two different signals, and a receiver includes first and second receiver circuits such that the first signal arms the receiver but does not actuate the special effects theatrical device unless and until said second signal is also received.

REFERENCES:
patent: 5149290 (1992-09-01), Reveen
patent: 5579391 (1996-11-01), Ihara
patent: 5620355 (1997-04-01), Watkins

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