Power-line baseband communication system

Details Power-line baseband communication system Power-line baseband communication system

1982-03-11

1984-09-11

Hartary, Joseph W.

Electricity: electrical systems and devices

Safety and protection of systems and devices

Feeder protection in distribution networks

361 66, 361 68, 361 81, 340310A, H04B 160, H02H 726, H04M 1104

Patent

active

044713991

ABSTRACT:
A communication system for transmitting baseband digital signals on an electrical power line. A pulse generator produces digital signals which are limited to a frequency spectrum of 30 kHz to 300 kHz and applied directly, i.e., without modulation, to an electrical power line. At the receiving terminal an amplifier compensates for attenuation characteristics of the electrical power line and the received signal is then sampled to extract the information from it. To avoid interference when both a transmitting and receiving link are located at a substation, the baseband system incorporates a mimic network to mimic the interference signal erroneously picked up by the receiving link from the transmitting link located at the same substation. The mimic signal is then subtracted from the interference signal to neutralize the effect of the latter. When both a baseband digital communication system and a carrier communication system utilize the same electrical power lines, provision is made for interrupting the baseband digital signal to allow communications via the carrier system.

REFERENCES:
patent: 2996578 (1961-08-01), Andrews, Jr.
patent: 3509537 (1970-04-01), Haberly
patent: 3643160 (1972-02-01), Roy et al.
patent: 3688036 (1972-08-01), Bland
patent: 4040046 (1977-08-01), Long et al.
patent: 4194182 (1980-03-01), Martin
patent: 4205360 (1980-05-01), Drucker
patent: 4293846 (1981-10-01), Allison
patent: 4322768 (1982-03-01), Meada et al.
IEEE Conference Record, 1976 National Telecommunication Conference, vol. 1, Dallas, TX, 11/29/76.

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