Communications: electrical – Systems – Selsyn type
Patent
1981-02-04
1983-10-04
Crosland, Donnie L.
Communications: electrical
Systems
Selsyn type
340310R, 340310CP, 340538, 361332, H04M 1104
Patent
active
044081863
ABSTRACT:
Power line communication over plural residential branch circuits is accommodated by creating a signal coupling inductive impedance in a tie conductor electrically interconnecting the grounded neutral bus, to which the branch circuit neutral conductors are commonly terminated, and a ground bus commonly terminating the branch circuit ground conductors, such as to support voltage signals propagating on the ground conductors with respect to the neutral conductors of the branch circuits. This inductive impedance is created either by a signal coupling transformer linked with the tie conductor and driven by a signal transmitter, with signal receivers capacitively coupled across the branch circuit neutral and ground conductors, or is of a passive nature, with both transmitters and receivers capacitively coupled across the branch circuit ground and neutral conductors.
REFERENCES:
patent: 2023857 (1935-12-01), Satterlee et al.
patent: 3287722 (1966-11-01), Craig
patent: 3702460 (1972-11-01), Blose
patent: 3810096 (1974-05-01), Kabat et al.
patent: 3911415 (1975-10-01), Whyte
patent: 4075675 (1978-02-01), Burkett et al.
Bernkopf Walter C.
Crosland Donnie L.
General Electric Co.
Jacob Fred
Menelly Richard A.
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