Cable Connector Assembly With Metallic Conductive Layer
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Solution Overview
Problem
Existing USB cable connector assemblies face challenges in achieving high-speed signal transmission over long distances without incurring high manufacturing costs, as they require passive or active equalizers to maintain signal integrity at 10 Gbps or beyond.
Innovation Solution
A cable connector assembly with a metallic conductive layer between inner wires and insulators in differential wires, enhancing signal transmission performance and incorporating two pairs of differential wires with a grounding wire, wrapped in an insulative outer jacket, functions as an equalizer to improve high-speed signal transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a passive equalizer cable or active cable is used to maintain signal integrity at 10 Gbps or beyond, then signal transmission quality is improved, but manufacturing cost increases
Solution Approach 1:
The patent changes the physical parameters of the cable by introducing a metallic conductive layer between the inner wires and insulator, and optimizing the differential wire structure. These parameter changes enable the cable to achieve equalizer function passively without additional components, thereby improving signal transmission quality while avoiding the high manufacturing costs of traditional active or passive equalizer cables
Solution Approach 2:
The patent uses composite material structure by combining metallic conductive layer with insulator material in the differential wire construction. This composite structure provides both electrical conductivity for signal transmission and insulation properties, creating a passive equalizer effect without requiring separate equalizer components, thus reducing manufacturing cost while maintaining signal integrity
2Adaptability or versatility
If transmission distance is increased for USB connection, then connectivity versatility is improved, but signal integrity deteriorates
Solution Approach 1:
The patent modifies the cable's electrical parameters by introducing the metallic conductive layer and optimizing the differential wire geometry. These parameter changes reduce signal attenuation and maintain signal integrity over longer transmission distances, enabling extended USB connectivity while preserving reliable high-speed data transmission
3Ease of manufacture
If high-speed signal transmission is achieved without additional equalizers, then manufacturing cost is reduced, but signal transmission quality may deteriorate
Solution Approach 1:
The patent extracts the equalizer function from separate components (passive equalizer cable or active cable) and integrates it directly into the cable structure itself through the metallic conductive layer and differential wire design. This extraction eliminates the need for additional equalizer components, reducing manufacturing cost while maintaining signal transmission quality through the built-in passive equalizer mechanism
Data Source
AI summary
A cable connector assembly includes an insulative housing defining a cavity, a number of contacts retained in the insulative housing, a metallic shell enclosing the insulative housing, and a cable electrically connected with the contacts. The contacts comprise a number of first and second contacts, The cable has at least one pair of differential wires, the pair of differential wires comprising a pair of signal wires and a grounding wire. Each signal wire includes a number of inner wires and an insulator enclosing the inner wires. A metallic conductive layer is disposed between the inner wires and the insulator.