Digital encoder for door operator

Details Digital encoder for door operator Digital encoder for door operator

H - Electricity

04

B

342/2, 325/32

H04B 7/00 (2006.01) E05F 15/20 (2006.01) G07C 9/00 (2006.01) H04L 25/49 (2006.01)

Patent

CA 1089933

ABSTRACT OF THE DISCLOSURE A digital radio control system comprising a trans- mitter for producing a repeating series of width modulated pulses, and a receiver responsive only to a series of predeter- mined pulse characters to actuate a load device such as a garage door operator. Both the transmitter and the receiver circuits comprise simple counter circuits and switches to define the pulse codes. The receiver counter ii clocked by the transmitted pulse series and actuates the output circuit only if it reaches the final counter stage at least once.

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