Line termination for a telephone line

Details Line termination for a telephone line Line termination for a telephone line

1993-07-01

1996-01-16

Dwyer, James L.

Telephonic communications

Subscriber line or transmission line interface

Network interface device

379399, 379387, 379398, 379394, H04M 908

Patent

active

054855160

ABSTRACT:
A line termination of a telephone line includes a regulating transistor connected between conductor terminals of the telephone line. A termination circuit has an amplifier receiving an alternating voltage of the telephone line and a reference voltage, for generating an output correcting variable controlling the regulating transistor. A regulating configuration generates a regulated supply voltage for the termination circuit. A regulating circuit readjusts a conductor voltage of the output correcting variable of the amplifier.

REFERENCES:
patent: 5271059 (1993-12-01), Dielacher et al.
IEEE Journal of Solid-State Circuits, vol. 26, No. 7, Jul. 1991, "A Software Programmable CMOS Telephone Circuit"; (Dielacher et al.).

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