Alternating current regulator for use with telephone type line

Details Alternating current regulator for use with telephone type line Alternating current regulator for use with telephone type line

1974-10-23

1976-11-02

Claffy, Kathleen

179 16F, H04M 100

Patent

active

039899020

ABSTRACT:
A regulator which can be used in combination with equipment connected to a telephone type line. The regulator senses the amount of direct current being passed by the line and adjusts its internal AC impedance in inverse relationship thereto. This will shunt alternating current signals more severely when connected to short line loops having relatively small insertion loss, protecting a central office from excessive signal amplitudes.

REFERENCES:
patent: 3035122 (1962-05-01), Livingstone
patent: 3270142 (1966-08-01), Wilson
patent: 3393274 (1968-07-01), Ingraham
patent: 3508009 (1970-04-01), Henry
patent: 3748399 (1973-07-01), Matsuda
patent: 3800095 (1974-03-01), Cowpland

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