Power line communications system

Details Power line communications system Power line communications system

1995-05-09

1998-01-27

Hofsass, Jeffery

Communications: electrical

Systems

Selsyn type

34031001, 34031008, 348 6, 348 8, 455 33, 455 42, H04M 1104

Patent

active

057126143

ABSTRACT:
A power line communications system in which information signals are frequency multiplied in a transmitter unit, so that the critical information portions of the information signals are frequency shifted from a notch in the frequency response characteristic between an outlet in the power line communications system to which the transmitter unit is connected and an outlet in the power line communications system to which a receiver unit is connected, whereby the critical information portions of the information signals are not lost in the notch.

REFERENCES:
patent: 1717062 (1929-06-01), Phelps
patent: 4367557 (1983-01-01), Stern et al.
patent: 4538136 (1985-08-01), Drabing
patent: 4644321 (1987-02-01), Kennon
patent: 4772870 (1988-09-01), Reyes
patent: 4847903 (1989-07-01), Schotz
patent: 4912721 (1990-03-01), Pidgeon, Jr. et al.
patent: 5404127 (1995-04-01), Lee et al.
patent: 5410720 (1995-04-01), Osterman

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