Line circuit

Details Line circuit Line circuit

H - Electricity

04

M

379/56

H04M 1/76 (2006.01) H04M 19/00 (2006.01)

Patent

CA 1138138

12.2.1980 1 PHN 9451 ABSTRACT: Line circuit. A line circuit comprising a terminal for connection of a wire of a subscriber's line for applying thereto a line current which is determined by the impedance of the subscriber's line and an alternating current which is superimposed on the line current, the circuit further comprising an amplifier and a current injection circuit connected to the output of the amplifier for supplying a portion of the line current, determined by the impedance of the current injection circuit, the amplifier supplying the remaining portion of the line current.

351419

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