Optical Navigation Jitter Reduction via Dynamic Resolution Switching
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Solution Overview
Problem
Conventional optical computer mice experience jitter movements due to tracking errors in optical navigation systems, which are particularly bothersome for gamers who use the cursor for extended periods.
Innovation Solution
A system and method that automatically switches the current resolution based on jitter-resolution correlation data to reduce jitter, utilizing an image sensor, navigation engine, and resolution-switching module to detect jitter and adjust the resolution accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the resolution of the optical navigation system is increased to improve cursor positioning accuracy, then measurement precision is improved, but tracking errors increase causing jitter movements
Solution Approach 1:
The system dynamically adjusts the resolution of the optical navigation system based on detected jitter conditions. When jitter is detected, the resolution is automatically changed from a first resolution to a second resolution, making the resolution parameter dynamic rather than fixed. This allows the system to adapt to changing operational conditions and eliminate jitter while maintaining measurement precision when needed.
2Reliability
If the resolution is automatically changed to reduce jitter, then tracking stability is improved, but device complexity increases due to additional control mechanisms
Solution Approach 1:
The system implements a feedback mechanism where jitter detection triggers automatic resolution changes. The navigation engine monitors tracking stability, detects jitter conditions, and automatically adjusts the resolution parameter in response. This closed-loop feedback control eliminates the need for complex manual intervention while maintaining tracking stability through automated adaptation.
3Measurement precision
If higher resolution is used to improve tracking precision, then measurement precision is improved, but jitter movements increase affecting cursor stability
Solution Approach 1:
The system changes the resolution parameter dynamically based on operational conditions. When jitter is detected, the resolution parameter is changed from a first value to a second value, effectively altering the system's measurement characteristics to eliminate harmful jitter movements while maintaining precision when conditions are favorable.
Data Source
AI summary
A system and method for reducing jitter during an optical navigation operation operates to automatically switch the current resolution based on jitter-resolution correlation data.