Line take-up detection circuit

Details Line take-up detection circuit Line take-up detection circuit

2005-04-12

2005-04-12

Le, Huyen (Department: 2643)

Telephonic communications

Subscriber line or transmission line interface

C379S377000, C379S381000, C379S382000

Reexamination Certificate

active

06879686

ABSTRACT:
An interface circuit including a galvanic isolation barrier between a transmission line and a user equipment, and a detector for detecting, independently from a transmission, the idle or busy state of the line.

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patent: WO 9959325 (1999-11-01), None

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