Navigation Device Sampling Precision Auto-Adjustment
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Solution Overview
Problem
Existing navigation devices, such as optical mice, require manual adjustment of sampling frequency to match usage habits, disrupting user operations and lacking in intelligent, automatic precision adjustment.
Innovation Solution
A method and device that automatically adjust sampling precision based on display resolution and predetermined modes, increasing or decreasing CPI/DPI by comparing resolution with thresholds, and utilizing a ratio for consistent user experience across varying resolutions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If manual switching of sampling frequency is implemented to match application programs, then sampling precision can be adjusted to usage habits, but user operation is interrupted and system complexity increases
Solution Approach 1:
The navigation device automatically detects display resolution and adjusts sampling frequency without user intervention. The system monitors display parameters and autonomously selects appropriate sampling rates, eliminating manual switching operations while maintaining adaptability to different applications.
Solution Approach 2:
The system continuously monitors display resolution parameters and uses this feedback to dynamically adjust sampling frequency. The control unit receives display information, processes it according to predetermined modes, and automatically modifies sampling rates to match current usage conditions.
2Measurement precision
If sampling frequency is increased to improve sensitivity, then navigation precision is enhanced, but device complexity and power consumption increase
Solution Approach 1:
The system dynamically adjusts sampling frequency based on real-time display resolution detection. Instead of using fixed high sampling rates, the control unit varies sampling precision according to current display parameters, maintaining measurement accuracy while reducing unnecessary complexity and power consumption during low-resolution operations.
Solution Approach 2:
The invention changes the sampling frequency parameter automatically based on display resolution detection. The control unit modifies this critical parameter dynamically, allowing the system to achieve high precision when needed while simplifying operation during standard usage, thereby resolving the complexity-precision trade-off.
3Adaptability or versatility
If multiple sampling frequency settings are provided for different applications, then adaptability to usage habits is improved, but ease of operation deteriorates due to manual switching requirements
Solution Approach 1:
The navigation device autonomously determines the appropriate sampling frequency by detecting display resolution and comparing it with predetermined mode thresholds. This self-service mechanism eliminates the need for users to manually switch between multiple sampling frequency settings, providing application-specific precision automatically.
Solution Approach 2:
The system pre-establishes multiple sampling frequency modes and their corresponding display resolution thresholds before operation. When the device starts, it has already prepared the appropriate sampling rates, enabling immediate automatic adaptation to different applications without requiring user configuration or manual switching.
Data Source
AI summary
A method of adjusting sampling precision of a navigation device is disclosed in the present invention. The sampling precision represents counts per inch (CPI) or dots per inch (DPI) of the navigation device. The method includes determining a predetermined mode of the navigation device, obtaining resolution of a display, and adjusting the sampling precision according to the resolution and the predetermined mode, so that the sampling precision of the navigation device can be accordingly increased and decreased due to variation of the resolution.