Structure of signal transmission line

• US 20030183412A1
• Filed: 03/27/2002
• Published: 10/02/2003
• Est. Priority Date: 03/27/2002
• Status: Active Grant

• Current Assignee: Ta-San Kao
• Original Assignee: Ta-San Kao
• Inventors: Kao, Ta-San
• Granted Patent: US 6,683,256 B2
• Time in Patent Office: Days
• US Class Current: 174/102R
• CPC Class Codes: B32B 1/08 Tubular products
• CPC Class Codes: H01B 11/1817 Co-axial cables with at least one metal deposit conductor
• CPC Class Codes: H01B 11/1839 of cellular structure

Abstract

A structure of signal transmission line comprising a core portion, a middle material layer and a coating layer, it is characterized by that: the core portion includes at least one transmission medium enveloped with an insulation layer; the coating layer includes at least one layer; the middle material layer is provided between the core portion and the coating layer, and is comprised of at least a metallic-wire knitting layer and a paper wrapping layer. By separated transmitting of signals of high and low frequencies with the core portion with plural cores, the skin effect is lowered; and by providing more than one obscuring layers, the degree of mutual interference among a magnetic field, radio frequencies and static electricity can be lowered, and thereby, transmission with lower attenuation rate, smaller distortion and superior quality can be obtained.

Claims

1. A structure of signal transmission line comprising a core portion, a middle material layer and a coating layer, said structure is characterized by that,

said core portion includes a transmission medium enveloped with an insulation layer;

said coating layer comprises at least one layer; and

said middle material layer is provided between said core portion and said coating layer, and is comprised of a PVC conductive layer, a metallic-wire knitting layer and a paper wrapping layer;

said signal transmission line thus is completed as a guitar wire.

4. The structure of signal transmission line as in claim 1, 2 or 3, wherein,

said transmission medium or media are conductors plated with pure silver, and are enveloped each with a PE insulation layer which is enveloped thereover with a conductor made of pure copper of single crystal in single direction coated with lacquer and is further enveloped with a PE foam layer.

5. The structure of signal transmission line as in claim 1, 2 or 3, wherein, said metallic-wire knitting layer or layers are plated with silver.

2. A structure of signal transmission line comprising a core portion, a middle material layer and a coating layer, said structure is characterized by that,

said core portion includes a transmission medium enveloped with an insulation layer;

said coating layer comprises at least one layer; and

said middle material layer is provided between said core portion and said coating layer, and is comprised of a PVC conductive layer, a metallic-wire knitted layer, a PTFE layer and another metallic-wire knitting layer;

said signal transmission line thus is completed as a visual signal transmission line.

3. A structure of signal transmission line comprising a core portion, a middle material layer and a coating layer, said structure is characterized by that,

said core portion includes two transmission media enveloped respectively with an insulation layer;

said coating layer comprises at least one layer; and

said middle material layer is provided between said core portion and said coating layer, and is comprised of two PVC conductive layers, a cotton yarn filled layer, a metallic-wire knitting layer and a paper wrapping layer;

said signal transmission line thus is completed as a microphone wire of which said core portion with two transmission media transmits signals of high and low frequencies separately.