Digital transmission line tap circuit

Pulse or digital communications – Pulse code modulation – Differential

Reexamination Certificate

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Details

C375S247000, C375S257000, C379S403000, C379S413040, C330S086000

Reexamination Certificate

active

07054372

ABSTRACT:
A digital transmission line tap circuit is provided for applying a non-intrusive tap on a digital transmission line thus allowing the transmission signal to be monitored or utilized by another piece of transmission equipment. The tap circuit incorporates all the required functions of the tap in one circuit and eliminates large components, such as termination transformers.

REFERENCES:
patent: 4087754 (1978-05-01), Song
patent: 4868516 (1989-09-01), Henderson et al.
patent: 5333192 (1994-07-01), McGinn
patent: 5519342 (1996-05-01), McEwan
patent: 5881148 (1999-03-01), Koenig et al.
patent: 6205218 (2001-03-01), Fischer et al.
Hewlett Packard 3787B Technical Manual, Publication Date: on or before Jan. 1, 1990, Place of Publication: Unknown.

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