Line circuit for network junctor

Details Line circuit for network junctor Line circuit for network junctor

1984-05-14

1986-01-28

Rubinson, Gene Z.

179 90K, 179 16EA, H04M 300

Patent

active

045673292

ABSTRACT:
The present invention relates to a line circuit for network line junctor and more particularly to a dialling device. The dialling device according to the invention presents a high impedance for the direct current, the direct current being regulated about a predetermined threshold by means of an electronic choke, the regulation being controlled by a control circuit formed by an RC circuit with large time constant, by a diode and a capacitor. The invention is more particularly applicable to private switching equipment or to subscribers' terminals.

REFERENCES:
patent: 3943358 (1976-03-01), Reymond et al.
patent: 3973084 (1976-08-01), Houland
patent: 4008379 (1977-02-01), Watkins
patent: 4046969 (1977-09-01), Dalley
patent: 4046971 (1977-09-01), Losehand
patent: 4151377 (1979-04-01), Whitaker
patent: 4375014 (1983-02-01), Horak

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