Three-Signal Receiver Delay Tuning for High-Speed Skew Correction
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Solution Overview
Problem
Current communication systems face challenges in enhancing communication performance due to signal skew issues, particularly in high-speed interfaces used in electronic devices with increasing functionality, where existing skew adjustment methods are inadequate.
Innovation Solution
The implementation of a communication system with a receiver and transmitter that utilize multiple signal lines and delay adjustment circuits to adjust the delay amounts of signals, allowing for precise skew adjustment through synchronization codes and pattern detection, enabling improved data transmission across multiple data lanes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If high-speed data transmission is implemented, then communication speed is improved, but signal skew increases causing communication performance degradation
Solution Approach 1:
The patent applies parameter changes by adjusting the delay amounts of individual signal lines dynamically. The delay adjustment circuits modify the timing parameters of each signal line to compensate for skew, allowing high-speed transmission while maintaining signal synchronization and communication reliability
2Reliability
If skew adjustment is performed using conventional methods, then some skew compensation is achieved, but communication performance cannot be sufficiently improved
Solution Approach 1:
The patent segments the skew adjustment function into independent delay adjustment circuits for each signal line. This segmentation allows precise individual control of each line's delay, achieving superior skew compensation compared to conventional unified adjustment methods while maintaining manageable system complexity
Solution Approach 2:
The patent implements feedback mechanisms where reception results are used to determine optimal delay amounts. The system continuously monitors communication performance and adjusts delay parameters accordingly, enabling adaptive skew compensation that significantly improves communication performance
3Measurement precision
If delay adjustment circuits are added to each transmitting section, then skew adjustment precision is improved, but device complexity increases
Solution Approach 1:
The patent achieves high skew adjustment precision by introducing adjustable delay parameters in each transmitting section. The delay adjustment circuits provide fine-grained control over signal timing, enabling precise skew compensation that outweighs the added circuit complexity
Data Source
AI summary
A receiver includes a first receiving circuit that receives a first data including a first symbol transmitted using three signals over a first data lane, the first data lane including three signal lines respectively corresponding to the three signals. The first receiving circuit includes a delay adjustment circuit configured to adjust a delay amount of at least one of the three signals.