Encoded electrical control systems

Details Encoded electrical control systems Encoded electrical control systems

1977-01-07

1979-07-24

Caldwell, Sr., John W.

Communications: electrical

Systems

Selsyn type

340310CP, 340206, 307 31, 307 40, 343225, H04M 1104

Patent

active

041624866

ABSTRACT:
Encoded electrical control systems for household applications each employ an encoder/transmitter that provides an encoded signal and a receiver/decoder which effectuates control of an associated device only upon receipt of a signal containing the code unique to that specific receiver/decoder.
For household applications, a separate receiver/decoder, each having its own recognition code, is associated with each power outlet or electrical device to be controlled. A common controller includes an encoder/transmitter and a control switch for each device, along with means such as an rf carrier source and modulator, for transmitting all the encoder/transmitter outputs over the electrical distribution system. When a particular switch is actuated, the associated encoder/transmitter sends a signal containing the code of the corresponding receiver/decoder, which in turn effectuates the intended control function.

REFERENCES:
patent: 3488632 (1970-01-01), Clark
patent: 3558902 (1971-01-01), Casey
patent: 3689886 (1972-09-01), Durkee
patent: 3810096 (1974-05-01), Kabat et al.
patent: 3818481 (1974-06-01), Dorfman et al.
patent: 3964047 (1976-06-01), Antonaccio
patent: 4007458 (1977-02-01), Hollabaush

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