Negative impedance repeater with double amplification, for telep

Details Negative impedance repeater with double amplification, for telep Negative impedance repeater with double amplification, for telep

1974-11-29

1976-08-10

Cooper, William C.

Wave transmission lines and networks

Automatically controlled systems

With control of equalizer and/or delay network

333 80R, H04B 316, H04B 336

Patent

active

039743454

ABSTRACT:
A repeater for telephone lines, comprising two amplifier units serially connected and joined by an artificial line, the first unit having its input terminals connected to the secondary winding of a transformer of which the primary winding serves for connection of the repeater to the line, and the second unit having its output terminals connected to the primary winding of a second transformer of which the secondary winding is intended for connection of the repeater to the line.

REFERENCES:
patent: 2855575 (1958-10-01), Tamburelli
patent: 3024324 (1962-03-01), Dimmer
patent: 3503002 (1970-03-01), Valfre
patent: 3551838 (1970-12-01), Valfre
patent: 3860767 (1975-01-01), Boucher et al.

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