Active network termination circuit

Details Active network termination circuit Active network termination circuit

1984-03-05

1986-08-19

Rubinson, Gene Z.

H04B 176

Patent

active

046071415

ABSTRACT:
This disclosure depicts an active network for providing a virtual impedance to a voice frequency loaded pair having tip and ring terminals. The network comprises means for providing a predetermined capacitance between the tip terminal and ground and between the ring terminal and ground and has a variable resistive means. The means has a first input operatively connected to the tip terminal and a second input operatively connected to the ring terminal and also has first and second outputs. First and second fixed resistive means are operatively connected between the first output and the tip terminal and the second output and the ring terminal, respectively. The value of the predetermined capacitance is determined by the first and second fixed resistive means and the variable resistive means in the means for providing a predetermined capacitance.

REFERENCES:
patent: 2957944 (1960-10-01), De Monte
patent: 3622713 (1971-11-01), Lassaigne
patent: 3919502 (1975-11-01), Daryanani
patent: 4100515 (1978-07-01), Gupta
patent: 4140881 (1979-02-01), Clenney
patent: 4357494 (1982-11-01), Chambers, Jr.

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