Feedback Loop Signal Processing with Adaptive Delay Correction
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Solution Overview
Problem
Conventional feedback loop circuits face challenges in seamlessly outputting signals while shortening loop delay due to dynamic switching based on adaptive processing effectiveness, leading to inconsistent signal delivery.
Innovation Solution
A signal processing device and method that include a first correction processing section, an adaptive processing section, and a second correction processing section within a feedback loop, where the first correction is reversed by the second correction based on adaptive processing delay, allowing seamless signal output by adjusting the loop delay according to the adaptation state without needing to determine the adaptive processing state.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If the route is switched based on adaptive processing effectiveness determination, then the loop delay can be shortened, but the signal output becomes discontinuous and non-seamless
Solution Approach 1:
The patent applies dynamics by making the delay amount adjustable based on the adaptation state. The delay processing section dynamically changes the delay amount according to whether adaptive processing is effective, allowing the system to adapt between different delay states without abrupt switching, thus maintaining signal continuity while optimizing loop delay.
Solution Approach 2:
The patent introduces a delay processing section as an intermediary between the adaptive processing section and the second correction processing section. This intermediary component buffers and smooths the transition when switching between different processing routes, ensuring that signal output remains seamless during the transition from adaptive processing to bypass mode.
2Measurement precision
If adaptive processing is always applied, then signal processing accuracy is improved, but the loop delay increases
Solution Approach 1:
The system dynamically adjusts the processing path based on the effectiveness of adaptive processing. When adaptive processing is determined to be ineffective, the system switches to a bypass path that excludes the adaptive processing section, thereby reducing loop delay while maintaining acceptable signal processing accuracy. This dynamic adaptation allows the system to optimize between accuracy and speed based on real-time conditions.
Solution Approach 2:
The patent changes the parameter of delay amount based on the adaptation state. By adjusting the delay amount in the delay processing section according to whether adaptive processing is effective, the system can modify the loop delay parameter to match the current processing requirements, achieving shorter delays when high accuracy is not critical.
3Productivity
If the loop delay is dynamically switched, then the loop delay can be optimized, but seamless signal output cannot be achieved
Solution Approach 1:
The delay processing section serves as a mediator that smooths out the transitions when dynamically switching loop delay. By introducing this intermediary component that can adjust delay amounts continuously or in controlled steps, the system maintains signal continuity and seamlessness during delay optimization, preventing abrupt discontinuities that would occur with direct switching.
Solution Approach 2:
The system uses feedback from the adaptive processing effectiveness determination to control the delay amount in the delay processing section. This feedback mechanism ensures that changes in loop delay are coordinated with the actual processing state, maintaining signal seamlessness by adjusting delay based on real-time adaptation effectiveness rather than arbitrary switching.
Data Source
AI summary
There is provided a signal processing device including a first correction processing section that performs first correction on a predetermined signal, an adaptive processing section that performs predetermined adaptive processing on the signal that has been subjected to the first correction, and a second correction processing section that performs second correction, which is reverse correction of the first correction, on the signal that has been subjected to the adaptive processing, in accordance with the amount of delay in the adaptive processing.