Amplifier Modeling Circuit Distortion Characterization
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Solution Overview
Problem
Data processing circuits face performance reduction due to non-linear distortion introduced during data amplification, necessitating advanced systems and methods for characterization and mitigation of amplifier distortion.
Innovation Solution
The implementation of an amplifier modeling system that receives a preamplifier status input, applies a vector fitting algorithm to yield a pole value, determines if it's greater than unity, and replaces it with its inverse, using an integrated circuit or test system to model and correct distortion in data amplification processes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If a preamplifier circuit amplifies data input to yield an amplified output, then the signal strength is improved, but non-linear distortion is introduced that reduces circuit performance
Solution Approach 1:
The patent segments the distortion characterization process into distinct functional blocks: a distortion calculator that computes distortion values from input and output signals, and a lookup table that stores pre-characterized distortion data. This segmentation allows the system to handle distortion mitigation without requiring complete redesign of the amplification path.
Solution Approach 2:
The patent implements preliminary action by pre-characterizing the amplifier's distortion behavior through measurements stored in a lookup table during manufacturing or calibration. This pre-characterization allows the distortion calculator to quickly retrieve and apply correction factors during normal operation without real-time complex computations, thus mitigating distortion while maintaining signal strength.
2Reliability
If distortion characterization systems are implemented to mitigate amplifier distortion, then circuit performance is improved, but system complexity increases
Solution Approach 1:
The patent uses a lookup table that contains pre-measured distortion characteristics copied from the actual amplifier behavior. Instead of implementing complex real-time distortion modeling, the system copies the amplifier's distortion fingerprint into a table structure that can be quickly queried and applied for distortion mitigation, significantly reducing computational complexity.
Solution Approach 2:
The patent replaces complex mechanical or computational distortion correction mechanisms with a digital lookup table approach. The distortion calculator uses simple digital signal processing to compute distortion values based on stored characteristics, substituting what would otherwise require complex analog compensation circuits or iterative computational algorithms.
Data Source
AI summary
Systems, methods, devices and circuits for data amplification, and more particularly systems and methods for characterizing distortion introduced during data amplification. In some cases, an amplifier modeling circuit is discussed that receives a preamplifier status input from a preamplifier circuit; applies a vector fitting algorithm to the preamplifier status to yield a pole value; determines that the pole value is greater than unity; and replaces the pole value with an inverse of the pole value when the pole value is greater than unity.