Mouse Sensitivity Calibration via Dynamic Surface Adaptation
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Solution Overview
Problem
Conventional optical mice experience DPI value deviations due to fabrication variations and surface roughness changes, making it difficult for users to adjust sensitivity effectively.
Innovation Solution
A method and device for calibrating mouse sensitivity by obtaining sampling information on different surfaces, calculating directional calibration factors, and adjusting actual counts to maintain consistent performance across varying surfaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the optical mouse is calibrated before leaving the factory based on a preset value, then the initial DPI value is accurate, but the DPI value deviates from the preset value when used on surfaces with different roughness
Solution Approach 1:
The patent implements dynamic DPI calibration by allowing the mouse to adapt its sensitivity parameters based on the detected surface characteristics during operation. The system continuously monitors movement data and adjusts calibration factors to maintain accurate DPI values across varying surface conditions, transforming the static factory calibration into a dynamic, adaptive process.
Solution Approach 2:
The patent changes the operational parameters of the mouse by introducing adjustable calibration factors that modify the relationship between physical movement and cursor displacement. By varying these calibration parameters based on detected surface roughness and movement patterns, the system maintains consistent DPI performance across different operating conditions.
2Ease of operation
If the DPI value is manually adjusted by the user, then the sensitivity can be changed, but it is difficult for the user to detect the variation between the reported count and the preset value
Solution Approach 1:
The patent implements feedback mechanisms that provide users with information about actual DPI performance and calibration status. The system monitors the relationship between physical movement and cursor displacement, then communicates this information back to the user through the operating system, enabling informed adjustments and verification of DPI accuracy.
Solution Approach 2:
The patent enables self-service calibration by allowing the system to automatically detect surface characteristics and adjust calibration factors without requiring manual intervention. The mouse performs self-calibration routines that adapt to the operating surface, eliminating the need for users to manually detect and correct DPI deviations.
3Adaptability or versatility
If the conventional optical mouse operates on surfaces with different roughness, then the mouse can be used in various environments, but the reported count or DPI value deviates from the preset value
Solution Approach 1:
The patent makes the calibration parameters dynamic by continuously adapting them based on the detected surface characteristics. The system monitors movement data across different surfaces and adjusts calibration factors in real-time, allowing the mouse to maintain consistent DPI performance whether operating on smooth or rough surfaces.
Solution Approach 2:
The patent changes the operational parameters by introducing surface-dependent calibration factors that modify the DPI calculation based on detected surface roughness. By varying these parameters according to the operating surface, the system maintains accurate DPI values across diverse environmental conditions.
Data Source
AI summary
A mouse device and method for calibrating sensitivity thereof are provided. The method for calibrating sensitivity includes the following steps. First, sampling information is obtained under a test mode. A calibration factor is obtained according to the sampling information and a preset value. The calibration factor can be obtained by dividing the preset value by the resolution. Under a normal mode, an actual count detected by the mouse device is calibrated according to the calibration factor. Whenever the mouse device is moved on the operating surface for a distance, the actual count detected by the mouse device can be calibrated to obtain a calibrated count. The calibrated count can be calculated by multiplying the actual count by the calibration factor.