Selective Compensation Circuit for Crosstalk and Inter-Symbol Interference
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Solution Overview
Problem
High-speed data transmission between electronic devices is often hindered by noise-induced signal distortion, such as crosstalk noise and inter-symbol interference, which degrade signal quality and lead to communication errors.
Innovation Solution
An electronic circuit comprising a driver, a selector circuit, and a compensator circuit that generates compensation signals to counteract inter-symbol interference and crosstalk noise, depending on the selected signal, thereby improving signal quality and reducing errors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If high-speed data transmission is implemented through parallel communication channels, then data transmission speed and communication performance are improved, but signal distortion due to crosstalk noise and inter-symbol interference increases
Solution Approach 1:
The patent applies preliminary anti-action by generating compensation signals before the actual data transmission occurs. The compensator circuit creates signals that are designed to counteract the expected crosstalk noise and inter-symbol interference in advance. When the distorted received signal is combined with these pre-generated compensation signals, the harmful effects are neutralized, allowing high-speed transmission without suffering from signal distortion
Solution Approach 2:
The patent converts the harmful crosstalk noise and inter-symbol interference into beneficial compensation signals. By analyzing the characteristics of the distortion and generating corresponding compensation signals, the system transforms what would be harmful interference into useful information that corrects the signal distortion, thereby maintaining signal integrity at high transmission speeds
2Reliability
If compensation signals are generated for both crosstalk noise and inter-symbol interference, then signal quality is improved, but device complexity increases
Solution Approach 1:
The patent merges the compensation functions for crosstalk noise and inter-symbol interference into a single integrated compensator circuit. Rather than implementing separate compensation mechanisms for each type of distortion, the circuit processes both compensation needs together, selecting and generating the appropriate compensation signals through a unified structure, thereby reducing overall device complexity while maintaining signal quality
Solution Approach 2:
The compensator circuit is designed with multi-functionality to handle both crosstalk noise compensation and inter-symbol interference compensation. The circuit can selectively generate different types of compensation signals based on the detected distortion type, making a single circuit perform multiple compensation functions that would otherwise require separate dedicated circuits
Data Source
AI summary
An electronic circuit including: a driver for outputting a driven first signal by driving a first signal among signals received in parallel; a selector circuit for selecting one of the first signal and a second signal among the signals received in parallel; and a compensator circuit for generating a first compensation signal for compensating the driven first signal, in response to the first signal or the second signal selected by the selector circuit, wherein, when the selector circuit selects the first signal, the compensator circuit generates the first compensation signal to compensate for an inter-symbol interference of the driven first signal, and wherein, when the selector circuit selects the second signal, the compensator circuit generates the first compensation signal to compensate for a crosstalk noise of the driven first signal caused by a driven second signal driven from the second signal.