Communications: electrical – Continuously variable indicating – With meter reading
Patent
1981-07-15
1985-01-15
Groody, James J.
Communications: electrical
Continuously variable indicating
With meter reading
34082557, 34082562, 34082598, 34082552, H04Q 1104
Patent
active
044941153
ABSTRACT:
A controller for a locked carrier distributed multiplexed telemetry system hich uses on-off switching of a d.c. power supply and a pilot signal generator at a remote control unit. A pilot signal from the remote control unit is amplified and rectified. The d.c. rectifier output, occurring only during the presence of the pilot signal, is sensed by a comparator which provides rapid transition pulses to advance a counter. The counter is advanced one count for each pilot signal cycle (on-off-on) and is reset for each d.c. power supply cycle (on-off-on). The devices to be controlled are connected to the output of the counter.
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Beers R. F.
Gray F. I.
Groody James J.
The United States of America as represented by the Secretary of
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