Electronic multiple device control system

Details Electronic multiple device control system Electronic multiple device control system

1976-09-13

1979-07-31

Caldwell, Sr., John W.

Communications: electrical

Systems

Selsyn type

307 3, 325394, H04B 354

Patent

active

041632184

ABSTRACT:
An electronic control system which can control the operation of a number of electrical devices such as lights, outlets, sensing apparatus, etc., all of which are energized from the same power lines. Each of the electrical devices is respectively connected to the power lines by an addressable switch unit. A central control unit is connected to the power line and generates a binary coded time division multiplex signal, including an address portion and a command portion. The encoded signal is transmitted directly onto the power lines and is received by the addressed switch, which responds to the command to control the state of the electrical device, and in turn sends a status response onto the power lines which is received at the central unit.

REFERENCES:
patent: 3488517 (1970-01-01), Cowan et al.
patent: 3594584 (1971-07-01), Woods
patent: 3689886 (1972-09-01), Durkee
patent: 3702460 (1972-11-01), Blose
patent: 3729710 (1973-04-01), Sherwin
patent: 3803491 (1974-04-01), Osborn
patent: 3818466 (1974-06-01), Honda
patent: 3946047 (1976-06-01), Antonaccio
patent: 3986121 (1976-10-01), Oehrli
patent: 4007458 (1977-02-01), Hollabaugh
patent: 4024528 (1977-05-01), Boggs et al.

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