Discrete Insulation Components for Cable Crosstalk Reduction

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Solution Overview

Problem

Conventional communication cables with twisted pairs suffer from crosstalk interference due to close proximity of wires, leading to reduced data transmission rates and increased bit rate errors, and require continuous separators that increase material costs and reduce flexibility.

Innovation Solution

Incorporating discrete components of insulation material between and around twisted pairs, which are loosely positioned and not directly connected, to provide separation and reduce crosstalk while using recycled materials and minimizing material usage.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Object-affected harmful factors

If continuous separators are used to separate adjacent twisted pairs, then crosstalk is reduced, but material cost increases and cable flexibility is reduced

Engineering Contradiction:

ImprovecrosstalkVSAvoidmaterial cost and flexibility

Core Design Contradiction:

Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The continuous separator is divided into discrete separator components that are distributed throughout the cable. Each discrete separator provides localized separation between twisted pairs, while the overall cable maintains flexibility and uses less material. The separators are positioned at intervals rather than forming a continuous structure.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Separation is provided locally at specific positions where twisted pairs are in close proximity, rather than using a continuous separator throughout the entire cable length. This localized approach reduces material usage while maintaining crosstalk performance where it is most needed.

Inventive Principle:

Principle #3Local quality

2Area of stationary object

If multiple cables are positioned in close proximity, then space is utilized efficiently, but alien crosstalk increases

Engineering Contradiction:

Improvecable spacingVSAvoidalien crosstalk

Core Design Contradiction:

Area of stationary objectVSObject-affected harmful factors

Solution Approach 1:

Discrete separator components act as intermediary elements between adjacent cables, providing electromagnetic isolation without requiring large physical separation distances. The separators absorb or redirect electromagnetic fields, preventing alien crosstalk while allowing cables to be positioned closer together.

Inventive Principle:

Principle #24Intermediary (Mediator)

3Volume of moving object

If twisted pairs are placed in close proximity, then cable compactness is improved, but interlinking and crosstalk increase

Engineering Contradiction:

Improvecable core volumeVSAvoidinterlinking and crosstalk

Core Design Contradiction:

Volume of moving objectVSObject-affected harmful factors

Solution Approach 1:

The cable core is segmented into regions separated by discrete separator components. This segmentation allows twisted pairs to be positioned in compact arrangements within each region while preventing interlinking between regions, maintaining both compactness and electrical performance.

Inventive Principle:

Principle #1Segmentation

Data Source

PatentUS9972422B1Communication cables with separators formed from discrete components of insulation material

Publication Date: 2018.05.15 SUPERIOR ESSEX INT INC

AI summary

A communication cable may include a plurality of twisted pairs and a plurality of discrete components of insulation material positioned in the interstices between the plurality of twisted pairs. Each of the discrete components may have a largest dimension that is no greater than approximately 250 microns. The discrete components may provide separation between two or more of the twisted pairs. A jacket may be formed around the plurality of twisted pairs and the plurality of discrete components.