Method of, and apparatus for, information communication via a po

Details Method of, and apparatus for, information communication via a po Method of, and apparatus for, information communication via a po

1987-02-26

1988-05-17

Crosland, Donnie L.

Communications: electrical

Systems

Selsyn type

340310R, 375 37, 455 3, 333 32, H04M 1104

Patent

active

047453915

ABSTRACT:
A method for transmission of information, received at a transmitter of a power distribution system, over at least one conductor of that distribution system, requires the reception, at the transmitter, also of at least one PLC signal at a power-line communications (PLC) frequency and from an associated first conductor portion of the system. The transmitter processes the local data signal and the PLC signal to generate another PLC signal, also at the PLC frequency, which is coupled through the non-saturating core of a transmitter-coupling current transformer to inject a PLC current into a second conductor portion of the system. The PLC signal is eventually received by a receiver, connected to a system conductor at a location different from the location of the transmitter, and the transmitted information is recovered therefrom.

REFERENCES:
patent: 4308619 (1981-12-01), Hughes
patent: 4538136 (1985-08-01), Drabing
patent: 4636771 (1987-01-01), Ochs

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