Electrical appliance control

Details Electrical appliance control Electrical appliance control

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.

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