Dynamic Equalization Coefficient Adjustment for Data Transmission Reliability
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Solution Overview
Problem
Conventional data transmitting and receiving systems face challenges in maintaining optimal communication state due to the difficulty in optimizing pre-emphasis and equalization coefficients, which often require re-initialization and result in bit errors, especially under changing circumstances.
Innovation Solution
A data transmitting and receiving system that dynamically adjusts the equalization coefficient in response to successive bit errors, allowing for real-time correction of the equalization or pre-emphasis coefficients without interrupting operation, thereby maintaining optimal data communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If pre-emphasis and equalization coefficients are optimized using conventional methods, then data transmission reliability is improved, but the system requires re-initialization which causes interruption and bit errors
Solution Approach 1:
The patent implements dynamic adjustment of pre-emphasis and equalization coefficients during data transmission without requiring system re-initialization. The equalization coefficient is updated in real-time based on detected bit errors, allowing the system to adapt to changing channel conditions while maintaining continuous operation and avoiding interruptions.
Solution Approach 2:
The patent changes the equalization coefficient parameter dynamically during operation based on bit error detection. When bit errors are detected, the system adjusts the equalization coefficient to correct the transmission issues, thereby improving reliability without requiring full system re-initialization that would cause interruptions.
2Reliability
If the system performs re-initialization to optimize coefficients, then optimal data communication is achieved, but bit errors occur during the re-initialization process
Solution Approach 1:
The patent performs preliminary detection of bit errors and proactively adjusts the equalization coefficient before significant degradation occurs. By monitoring transmission quality and making preventive adjustments, the system maintains optimal communication without needing disruptive re-initialization that introduces bit errors.
Solution Approach 2:
The patent implements a feedback mechanism where bit errors are detected and used to trigger automatic adjustment of the equalization coefficient. This closed-loop control allows the system to respond to actual transmission conditions and correct issues without requiring full re-initialization that would cause additional bit errors.
3Ease of operation
If the equalization coefficient is fixed, then system operation is simple, but the system cannot adapt to changing transmission conditions
Solution Approach 1:
The patent enables the system to self-adjust the equalization coefficient automatically based on detected bit errors without requiring manual intervention or complex external control. This self-service mechanism maintains ease of operation while providing dynamic adaptation to changing transmission conditions through automatic coefficient adjustment.
Data Source
AI summary
A system having a transmission unit transmitting an output data signal formed from output data and related error detection code and a corresponding receiving unit. The output data signal is pre-emphasized by a pre-emphasis driver in the transmission unit. The receiving unit includes an equalizer equalizing the received output data signal and an error detector analyzing the error detection code to determine whether a bit error is present in the received data. Upon successive data transmission failures either an equalization coefficient in the equalizer or a pre-emphasis coefficient in the pre-emphasis driver are changed.