Remote control system
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United States of America Patent
Stats
-
Jan 26, 1988
Grant Date -
N/A
app pub date -
Jan 21, 1986
filing date -
Jan 25, 1985
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Remote-control system comprising a main unit and, connected at a distance via a pair of conductors to the main unit, an operating unit which comprises a series circuit of a number of diodes connected between the conductors of the conductor pair, a number of switches connected parallel to one or more of the diodes, and a signalling circuit. The main unit provides signalling corresponding to the certain current. In particular the certain current is determined by the state of the switches.
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Family
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