Power and signal transmission system

Details Power and signal transmission system Power and signal transmission system

1992-03-17

1995-03-07

Dwyer, James L.

Telephonic communications

Subscriber line or transmission line interface

Protective circuit

379413, H04N 908

Patent

active

053965558

ABSTRACT:
A power and signal transmission system performs a transmission of a power from a first communication device to a second communication device via a transmission path as well as a transmission of a signal between the first and second communication devices via the transmission path. The first communication device includes a high voltage power source and a first pair of active inductances each having a low DC impedance and a high AC impedance, through which the power from the high voltage power source is supplied to the transmission path, and the second communication device includes a DC/DC converter and a second pair of active inductances each having a low DC impedance and a high AC impedance, through which the power transmitted via the transmission path is supplied.

REFERENCES:
patent: 4564726 (1986-01-01), Ibata
patent: 4631366 (1986-12-01), Takato et al.
patent: 4764956 (1988-08-01), Rosch et al.
patent: 4908856 (1990-03-01), Poletto
patent: 4935960 (1990-06-01), Takato et al.
patent: 4964158 (1990-10-01), Okochi et al.
patent: 4982422 (1991-01-01), Itoh et al.

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