Arrangement for remote control apparatus

Details Arrangement for remote control apparatus Arrangement for remote control apparatus

1976-12-17

1978-03-28

Claffy, Kathleen H.

179 2EA, 179 1SW, H04M 1100

Patent

active

040816087

ABSTRACT:
Signals are transmitted over a line from a control location to a remote location in order to control an apparatus at the remote location. Frequently, the line is subjected to faults, such as voltages, noise, or opens. Or there may be a power failure at the remote location. Such faults or failures will probably be unknown to the user at the control location. An arrangement is provided at the control location for automatically and periodically transmitting the last selected control signal to insure that the apparatus at the remote location is operated as desired by the user.

REFERENCES:
patent: 2583032 (1952-01-01), Waterman
patent: 3383467 (1968-05-01), New

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