Digital Eye Width Analysis for Signal Quality Assessment
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Solution Overview
Problem
Existing digital communication systems lack effective methods to determine signal quality based on digital eye width, which is crucial for assessing the reliability and stability of digital signals.
Innovation Solution
A method and apparatus are developed to generate an indication of signal quality by analyzing a digital eye mask derived from a digital eye diagram, using eye diagram digitizers and signal quality analyzers to measure eye width and correlate it with signal quality indicators.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If digital eye width measurement methods are implemented, then signal quality assessment capability is improved, but system complexity increases
Solution Approach 1:
The patent segments the signal quality assessment process into distinct functional modules: an eye diagram generator that creates visual representations of signal characteristics, an eye width measurement module that quantifies the horizontal opening, and a quality indicator generator that translates measurements into actionable metrics. This segmentation allows each module to be optimized independently while maintaining overall system functionality.
Solution Approach 2:
The patent introduces digital eye diagrams as an intermediary visual representation between the raw digital signal and the quality assessment metrics. The eye diagram serves as a mediator that transforms complex signal characteristics into a visual format that can be easily measured and analyzed, simplifying the overall assessment process.
2Reliability
If comprehensive signal quality analysis is performed, then reliability of transmission assessment is improved, but measurement time increases
Solution Approach 1:
The patent performs preliminary actions by continuously generating and updating eye diagrams in the background during signal transmission. This allows the system to have pre-computed visual representations ready for immediate analysis, eliminating the need to create eye diagrams from scratch during quality assessment and significantly reducing measurement time.
Solution Approach 2:
The patent implements continuous eye diagram generation and updating throughout the signal transmission process. This continuous action ensures that quality assessments are based on the most current signal characteristics while maintaining a steady workflow that prevents idle time and computational overhead.
Data Source
AI summary
A method includes generating a digital eye mask representative of a digital eye diagram of bits of a received signal, the bits encoded utilizing zero-crossings; and generating an indication of quality for the received signal, the indication of quality proportional to a determined eye width of the digital eye diagram, the determined eye width obtained from the generated digital eye mask.