Equalizer Correction Coefficient Adjustment for Signal Integrity
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In high-speed serial communication systems, signal quality degradation due to impedance mismatch and noise issues in transmission paths leads to reduced effective data rates, especially when devices and cables are not designed to handle increasing communication speeds.
Innovation Solution
A communication system that includes a memory unit for storing identification information and correction coefficients associated with external devices and cables, and an equalizer that adjusts received signals by setting and refining correction coefficients based on identification information, using a training sequence to optimize signal quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If high-speed data communication is implemented, then communication speed is improved, but signal quality deteriorates due to impedance mismatch and noise in the transmission path
Solution Approach 1:
The patent applies preliminary action by performing equalizer settings and correction coefficient determination before actual high-speed data communication begins. The system uses training sequences and authentication processes to pre-adjust the equalizer parameters, so that when high-speed communication starts, the signal quality is already optimized, preventing degradation from impedance mismatch and noise
Solution Approach 2:
The patent implements parameter changes by dynamically adjusting equalizer correction coefficients based on the specific external device being connected. The system determines device-specific parameters through authentication and uses these to configure the equalizer, allowing the transmission system to adapt its parameters to match the characteristics of different devices and cables, thereby maintaining signal quality at high speeds
2Reliability
If correction coefficients are optimized for each external device, then signal reception characteristics are improved, but device complexity increases due to memory storage and authentication requirements
Solution Approach 1:
The patent applies universality by using a single memory unit to serve multiple functions: storing authentication information for device identification, storing correction coefficients for signal equalization, and managing device-specific communication parameters. This multi-functional approach allows the system to achieve device-specific optimization without proportionally increasing overall device complexity
Solution Approach 2:
The system implements self-service by automatically performing authentication, determining device characteristics, and setting correction coefficients without requiring manual intervention. The equalizer automatically adjusts its parameters based on the connected device, reducing the operational complexity for users while maintaining optimized signal reception
3Adaptability or versatility
If authentication process and device identification are implemented, then adaptability to different devices is improved, but communication setup time increases
Solution Approach 1:
The patent applies preliminary action by performing authentication and device identification in advance during the connection establishment phase. The system determines device characteristics and stores correction coefficients before actual data communication begins, so that once connected, the system can immediately use optimized parameters without delays during data transmission
Solution Approach 2:
The patent implements dynamics by making the authentication and parameter setting processes adaptive rather than static. The system adjusts the depth and nature of authentication based on device type and connection context, and dynamically selects appropriate correction coefficients from stored data, allowing the setup time to vary optimally based on the specific device rather than using a fixed time-consuming process for all devices
Data Source
AI summary
Increase the effective data rate of high-speed data communication. It has a memory unit, a reception signal line, and a transmission signal line capable of communicating with an external device via a control circuit and an equalizer, controllers for controlling transmission and reception of signals to and from the external device, and a correction coefficient associated with an identification information and the identification information of the external device. The control circuit sets the correction coefficient associated with the identification information to the equalizer.