Subscriber circuit for a telephone network

Details Subscriber circuit for a telephone network Subscriber circuit for a telephone network

1983-01-21

1986-08-26

Rubinson, Gene Z.

179 70, H04M 1900

Patent

active

046084614

ABSTRACT:
A subscriber circuit for a telephone network which is coupled to earth via a frequency-dependent coupling circuit. As for direct current the coupling circuit has a much lower impedance than for alternating current, the electrolytic corrosion due to leakage current in the subscriber line is counteracted and no severe requirements need to be imposed on the equality of the impedances in the two wires of the subscriber line.

REFERENCES:
patent: 3223781 (1965-12-01), Hestad
patent: 4037120 (1977-07-01), Colardelle et al.
patent: 4088843 (1978-05-01), Rogers et al.
patent: 4135062 (1979-01-01), Ferrleu
patent: 4167654 (1979-09-01), Bolus et al.
patent: 4272656 (1981-06-01), Nishikawa
patent: 4310733 (1982-01-01), Schoofs
patent: 4440979 (1984-04-01), McGibbon et al.
patent: 4476351 (1984-10-01), Beegle et al.
patent: 4511763 (1985-04-01), Skidanenko et al.

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