Power distribution line communication system for and method of r

Details Power distribution line communication system for and method of r Power distribution line communication system for and method of r

1991-07-12

1993-02-09

Crosland, Donnie L.

Communications: electrical

Systems

Selsyn type

340310R, 375 37, 375 48, H04B 300, H04L 2700

Patent

active

051855917

ABSTRACT:
A power distribution line communication system for, and method of, reducing effects of signal cancellation at locations along the distribution line due to standing waves caused by reflections of a carrier signal impressed on the distribution line. A same outgoing data signal is modulated on each of a plurality of carrier signals having different frequencies. The carrier signal frequencies are selected such that all of the carrier signals will not experience signal cancellation at a same location on the distribution line. The modulated carrier signals are simultaneously impressed on the distribution line for transmission to remote locations, thereby ensuring reception of the outgoing data signal at each remote location.

REFERENCES:
patent: 4577333 (1986-03-01), Lewis et al.
patent: 4882552 (1989-11-01), Harris
patent: 4968970 (1990-11-01), LaPorte

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