Impedance setting circuit for a SLIC

Details Impedance setting circuit for a SLIC Impedance setting circuit for a SLIC

1994-06-29

1996-05-07

Hofsass, Jeffery

Telephonic communications

Subscriber line or transmission line interface

379398, H04M 176

Patent

active

055154344

ABSTRACT:
A current mode subscriber line interface circuit (SLIC) for telephone system in which AC and De impedances for tip and ring connections of the SLIC are separately set. A DC filter separates the DC and AC components of tip and ring currents, and a current amplifier amplifies the AC components separately from the DC components. A pair of resistors set the AC impedance value, and also may be used to set SLIC four-wire to two-wire gain separately from SLIC two-wire to four-wire gain.

REFERENCES:
patent: 4203012 (1980-05-01), Boxall
patent: 4300023 (1981-11-01), Kelley et al.
patent: 4458112 (1984-07-01), Svala
patent: 4485341 (1984-11-01), Welty et al.
patent: 4757527 (1988-07-01), Beniston et al.
patent: 4982426 (1991-01-01), Jakab
patent: 5020102 (1991-05-01), Schorr
patent: 5271059 (1993-12-01), Dielacher et al.
patent: 5295186 (1994-03-01), Okamoto
patent: 5323460 (1994-06-01), Warner et al.
patent: 5329585 (1994-07-01), Susak et al.
patent: 5343520 (1994-08-01), Willocx et al.
patent: 5402485 (1995-03-01), Takato et al.

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