Naum Strizhevskiy

US Patent:

6927333, Aug 9, 2005

Filed:

Jun 22, 2002

Appl. No.:

10/177927

Inventors:

Naum Strizhevskiy - Verona NJ, US

Assignee:

T. Bogomolny - Morris Plains NJ

International Classification:

H01B011/02

US Classification:

174 33

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.

US Patent:

6381284, Apr 30, 2002

Filed:

Jun 14, 1999

Appl. No.:

09/332403

Inventors:

Naum Z. Strizhevskiy - Verona NJ

Assignee:

T. Bogomolny - Morris Plains NJ

International Classification:

H04B 300

US Classification:

375257

Abstract:

A method of telecommunications as simplex and/or (half-) duplex signal transmission through coaxial and symmetrical pairs of metallic wires, fiber optics and metallic waveguides and other cables by means of engage of full/part an echo reflections of a signal in spans of a system of telecommunication at end/s of a pair/waveguide/cable neither more nor less than it is necessary/enough to signal transmission with given/rated accuracy/error ratio and release in this way, and bring into use the latend today uselessly losing now signal energy by means of switch on at end/s of the pair/waveguide/cable the end connector-equalizer.