Cable Circuitry for Signal Quality Feedback
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Solution Overview
Problem
Current cable technologies lack a mechanism to indicate performance limitations, such as power handling capacity, to connected devices, which can lead to signal quality issues, especially with longer cables that struggle to maintain signal quality.
Innovation Solution
Incorporating circuitry within the cable that allows it to communicate performance information by transitioning between two signal modes, enabling the cable to convey its own properties or signal properties to connected devices, and using a switch to establish different data paths for communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of stationary object
If cable length is increased to extend communication range, then coverage area is improved, but signal quality deteriorates
Solution Approach 1:
The cable includes a circuit that measures signal properties (voltage, current, power, frequency, attenuation, skewing) and communicates these measurements back to the transmitting or receiving device. This feedback mechanism allows the devices to adjust transmission parameters to compensate for signal degradation over long cable lengths, thereby maintaining signal quality despite increased cable length.
Solution Approach 2:
The cable's circuit acts as an intermediary between the signal and the external devices. It measures signal properties within the cable and communicates this information to the devices, enabling them to make informed adjustments. This intermediary measurement and communication function allows long cables to maintain signal integrity by facilitating real-time parameter optimization.
2Power
If cable power handling capacity is increased to support higher power interfaces, then power transmission capability is improved, but device compatibility is reduced
Solution Approach 1:
The circuit measures power-related signal properties and communicates them to connected devices. This enables devices to understand the cable's actual power handling capabilities and adjust their operation accordingly, ensuring compatibility across different device power requirements while supporting high-power interfaces when appropriate.
Solution Approach 2:
The cable's circuit dynamically communicates variable parameters about signal and power properties to connected devices. This allows the system to adapt power transmission levels based on actual cable performance and device requirements, enabling both high-power and low-power device compatibility through parameter negotiation rather than fixed capability limitations.
3Loss of information
If cable circuitry is added to communicate performance information, then information accuracy is improved, but device complexity is increased
Solution Approach 1:
The cable's circuit performs multiple functions: it measures various signal properties (voltage, current, power, frequency, attenuation, skewing), communicates these measurements to devices, and enables devices to adjust operation based on this information. This multi-functional approach consolidates what could be separate complex systems into a single integrated cable solution, improving information communication while managing overall system complexity.
Data Source
AI summary
A cable with circuitry that enables the cable to communicate data in one of at least two different signal modes of operation is presented. In a first signal mode, the cable enables data communication between the circuitry and either a source device or a sink device. The first signal mode can be used either to communicate properties of the cable itself or of a signal passing through the cable to either the source device or the sink device. In a second signal mode, the cable enables data communication between the source device and the sink device. The second signal mode can be used to communicate data in accordance with a predetermined protocol.