Driver circuit for subscriber terminals

Details Driver circuit for subscriber terminals Driver circuit for subscriber terminals

2005-09-20

2005-09-20

Mei, Xu (Department: 2644)

Telephonic communications

Subscriber line or transmission line interface

C379S413000

Reexamination Certificate

active

06947548

ABSTRACT:
Driver circuit for at least one subscriber terminal, comprising a first driver (14) for amplifying the power of a direct-voltage signal applied for supplying power to the subscriber terminal, the first driver (14) being supplied by a first supply voltage (V1), and comprising a second driver (37; 37a, 37b), following the first driver, for modulating high-frequency signal currents onto the power-amplified direct-voltage signal.

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