Dynamic Equalizer Mode Control for Power and Latency Optimization
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Solution Overview
Problem
Existing signal equalizers often consume excessive power and experience high latency due to over-dimensioning, especially when handling less demanding signals, as they are designed to handle the most demanding signals, leading to inefficient performance in less demanding scenarios.
Innovation Solution
An apparatus that dynamically controls the equalizer by determining signal metrics and selecting operating modes based on these metrics, enabling or disabling basis functions to optimize power consumption and latency, allowing the equalizer to operate in multiple modes tailored to the specific characteristics of the input signal, such as normal, low-power, or reduced-function modes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the equalizer is dimensioned to handle the most demanding signals, then the equalization performance is improved, but the power consumption increases
Solution Approach 1:
The equalizer dynamically switches between different operating modes (first operating mode with full basis functions, second operating mode with reduced basis functions) based on signal characteristics. This dynamic adaptation allows the equalizer to maintain high performance for demanding signals while reducing power consumption for less demanding signals, resolving the contradiction between consistent performance and variable power usage.
Solution Approach 2:
The equalizer changes operational parameters (number of enabled basis functions) based on signal conditions. By monitoring signal characteristics and adjusting the number of active basis functions, the equalizer optimizes the balance between equalization performance and power consumption, enabling efficient operation across different signal scenarios.
2Reliability
If the equalizer is dimensioned to handle the most demanding signals, then the equalization performance is improved, but the latency increases
Solution Approach 1:
The equalizer dynamically adjusts its processing complexity by switching between operating modes based on signal characteristics. For less demanding signals, it operates in a mode with fewer basis functions, reducing processing time and latency while maintaining sufficient equalization performance. For demanding signals, it switches to full mode to ensure performance requirements are met.
Solution Approach 2:
The equalizer applies partial action by enabling only the necessary number of basis functions required for the current signal conditions. Instead of always processing with all basis functions, it selectively activates only those needed, reducing unnecessary processing steps and associated latency while maintaining adequate equalization performance.
3Reliability
If the equalizer operates in full mode for all signals, then the equalization performance is maintained, but the device complexity increases
Solution Approach 1:
The equalizer implements dynamic mode switching based on signal characteristics, transitioning between first operating mode (full basis functions) and second operating mode (reduced basis functions). This dynamic approach simplifies operation for less demanding signals by using fewer processing elements, while maintaining full capability when needed, thus reducing overall operational complexity without sacrificing performance when required.
Data Source
AI summary
An apparatus for controlling an equalizer is provided. The apparatus comprises interface circuitry configured to receive at least one of an input signal and an output signal of the equalizer. The apparatus further comprises processing circuitry configured to determine at least one signal metric based on the at least one of the input signal and the output signal of the equalizer, select an operating mode of the equalizer from a plurality of different operating modes based on the determined signal metric, and control the equalizer to operate in the selected operating mode.