Multi-Stage Equalizer Gain Adjustment for Serial Signal Compensation
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Solution Overview
Problem
Existing serial data receiver systems face performance reduction due to suboptimal compensation of attenuated signals, as existing equalizers lack effective methods for adjusting gain to accurately restore signals in complex and changing environments.
Innovation Solution
A method for automatically adjusting the gain of each stage of a multi-stage equalizer by setting standard adjustment values, allowing for sequential selection and adjustment of equalization circuits based on preset rules, thereby optimizing signal compensation and improving adjustment performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If existing equalizer adjustment methods are used, then the equalizer can provide basic signal compensation, but the compensation is suboptimal and cannot achieve optimal signal restoration in complex and changing environments
Solution Approach 1:
The patent implements dynamic gain adjustment by enabling the equalizer to automatically adapt its compensation parameters in real-time based on received signal characteristics. The system transitions from static pre-configured equalization to dynamic adaptive equalization, where the gain of each stage is continuously optimized according to actual channel conditions, thereby achieving optimal signal restoration in complex and changing environments
Solution Approach 2:
The patent employs feedback mechanisms by using the received signal itself as the adjustment signal. The system monitors the output of each equalizer stage and uses this information to automatically adjust the gain of subsequent stages. This closed-loop feedback approach enables the equalizer to learn from actual signal characteristics and optimize compensation parameters without external intervention, resolving the contradiction between basic compensation and optimal restoration
2Manufacturing precision
If manual or simple automatic adjustment methods are used, then the equalizer structure remains simple, but the adjustment performance and signal restoration quality are insufficient
Solution Approach 1:
The patent divides the equalizer into multiple independent stages, each with its own gain control mechanism. By segmenting the equalization process into discrete stages (e.g., first stage, second stage, third stage), the system can independently optimize the gain of each stage based on specific signal characteristics. This segmentation enables precise adjustment performance while maintaining a modular structure that manages complexity through functional decomposition
Solution Approach 2:
The patent achieves high adjustment performance by dynamically changing the gain parameter of each equalizer stage. The system adjusts the amplification factor of each stage based on the measured signal quality and requirements, allowing precise control over the compensation process. This parameter-based approach enables fine-tuned adjustment performance without requiring complex structural modifications to the equalizer architecture
Data Source
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AI summary
The invention provides a method for automatically adjusting the gain of a multi-stage equalizer of a serial data receiver, which is applied to the serial data receiver, the serial data receiver provides a gain circuit, the gain circuit comprises a multi-stage equalization circuit, and each stage of equalization circuit is arranged in series; the automatic adjusting method comprises: Step S1, setting corresponding serial numbers for each stage of equalization circuit in sequence; Step S2, selecting an equalization circuit corresponding to the serial number from the gain circuit according to a preset rule; Step S3, sequentially adjusting the selected equalization circuits of each stage according to the sequence of the serial numbers to obtain corresponding standard adjustment values; and Step S4, adjusting the equalization circuit greater than or equal to the corresponding serial number according to the standard adjustment value. The method has the beneficial effects that the gain of each stage of equalizer is gradually adjusted for the multi-stage equalizer by setting the standard adjustment value, so that the optimal compensation for the signal is realized, and the adjustment performance of the serial data receiver is further improved.