Signal Correction Circuit for Ringback-Free Rising Edge Shaping
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Solution Overview
Problem
Signal ringback phenomena during signal transmission, caused by impedance mismatch, crosstalk, and sudden load changes, are difficult to eliminate, leading to increased debugging time and cost in existing technologies.
Innovation Solution
A signal correction circuit comprising a first signal processing component, a second signal processing component, and an output component, which generate control voltages to eliminate ringback by converting non-monotonic rising edges into smooth monotonic rising curves through energy storage and superposition processing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the topology of the link is changed to eliminate ringback, then signal quality is improved, but debugging time and cost are greatly increased
Solution Approach 1:
The signal transmission path is segmented into multiple independent components: a signal source, a link with impedance mismatch, and a terminal. By identifying and isolating the specific segment causing ringback (the impedance mismatch portion), the solution targets only that segment rather than redesigning the entire link topology, thereby reducing debugging time while maintaining signal quality improvement.
Solution Approach 2:
An intermediary device or circuit is introduced between the signal source and the terminal to compensate for the impedance mismatch. This intermediary component acts as a mediator that transforms or adapts the signal characteristics, eliminating ringback without requiring changes to the original link topology, thus avoiding increased debugging time and cost.
2Reliability
If impedance matching is performed to eliminate ringback, then signal quality is improved, but debugging complexity and cost are increased
Solution Approach 1:
Instead of performing complex impedance matching procedures, the solution changes key parameters of the transmission system such as signal voltage levels, timing characteristics, or impedance values at specific points. By adjusting these parameters, ringback is eliminated through a simpler configuration change rather than complex impedance matching, reducing debugging complexity while maintaining signal quality improvement.
3Reliability
If link system is revised to increase spacing and reduce crosstalk, then signal quality is improved, but manufacturing cost and time are increased
Solution Approach 1:
The crosstalk and ringback issues are extracted and identified as separate problems from the main signal transmission function. By isolating these harmful effects, the solution applies targeted corrections only where needed, rather than revising the entire link system to increase spacing. This selective approach eliminates ringback without requiring costly and time-consuming physical link revisions, maintaining production timing while improving signal quality.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The circuit effectively eliminates ringback by transforming the input signal's rising edge into a smooth monotonic curve, reducing debugging time and cost by redesigning the circuit without requiring component revisions.
Implementation Method 1
perform energy storage charging according to the second control voltage
Data Source
AI summary
A signal correction circuit and a server are provided. The circuit comprises: a first signal processing component receiving an input signal and positive power supply voltages and negative power supply voltages, generating a first control voltage, and outputting a first voltage, the first voltage being zero within a first time period; a second signal processing component generating a second control voltage according to the first control voltage, performing energy storage charging according to the second control voltage, controlling an energy storage charging voltage according to the second control voltage, and outputting a second voltage, and the second voltage being zero in the second time period; and an output component performing superposition processing on the first voltage and the second voltage to obtain an output signal.