Communications: electrical – Systems – Selsyn type
Patent
1983-03-28
1987-01-20
Olms, Douglas W.
Communications: electrical
Systems
Selsyn type
375 3, H04M 1104
Patent
active
046382992
ABSTRACT:
An electrical appliance remote control system comprises a transmitter supplying digital control messages onto a power main and a receiver for receiving those messages to activate an appliances accordingly. Each message comprises words each of which is transmitted twice. A repeater is coupled to the main to receive the first occurrence of the word and to retransmit that word onto the main, or onto another main, in the period containing the second occurrence of the word.
REFERENCES:
patent: 3564433 (1969-08-01), Miller
patent: 4156866 (1979-05-01), Miller
patent: 4357598 (1982-11-01), Melvin, Jr.
patent: 4369523 (1983-01-01), Seki et al.
patent: 4412335 (1983-10-01), Froment et al.
patent: 4467314 (1984-08-01), Weikel et al.
Hoshino et al, "Centralized Load Control and Automatic Meter Reading System", Nov. 1977, all.
Kuntz Curtis
Olms Douglas W.
Pico Electronics Limited
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