Electricity: conductors and insulators – Anti-inductive structures – Conductor transposition
Reexamination Certificate
2005-08-09
2005-08-09
Nguyen, Chau N. (Department: 2831)
Electricity: conductors and insulators
Anti-inductive structures
Conductor transposition
Reexamination Certificate
active
06927333
ABSTRACT:
A twin-wire line over (un)shielded (un)twisted pair for simplex and duplex analog and digital single- and multi-span single- and multi-channel local and long-distance cable communications comprising on every improved span the repeatedly in turn grounded pair wires at first the one wire, than the other wire etc. again the next from the pair wires are with the step length between said grounds are roughly and more of a fourth of the wave length of the low-frequency rate of the passband, and at least neither more than one time so grounded each pair wire of an improved span to increase several times the passband, span length, reduce the quantity of equipment and number of spans, improve, simplify and reduce cost of them and cable communications by means of reduce the currently in force passband attenuation per unit length of an existing pair of the existing/laying cables below of the universally known rated its self-value, reduced by means of the introduced parallel signal transmitting both as usual directly over the existing pair wires and in bypass over the same wires of the same pair and the ground return path accomplish as the external (frame) grounds, an AC network, a pair shield, and even a metallic cable sheath.
REFERENCES:
patent: 4939315 (1990-07-01), Palmer
patent: 5064966 (1991-11-01), Palmer
patent: 5113159 (1992-05-01), Adriaenssens et al.
Nguyen Chau N.
T. Bogomolny
Zborovsky I.
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