Touch Device Detection Method Using Dynamic Base Frame Updates
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing touch device detecting methods fail when there are flaws in the pre-stored base frame, leading to malfunctions, especially when an object comes into contact with the touch panel.
Innovation Solution
A detecting method that reads sensed values at continuous time points, computes the difference between maximum and minimum values, compares this difference with a base value to generate a comparison result, and updates the base frame and value accordingly to ensure accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a pre-stored base frame is used for comparison to detect touch events, then the detection process can be simplified, but the system becomes vulnerable to malfunctions when the base frame contains flaws
Solution Approach 1:
The patent applies preliminary action by continuously updating the base frame with the most recent frame data before using it for comparison. This ensures that the base frame reflects the current state of the touch panel, eliminating the vulnerability to flaws in pre-stored base frames while maintaining the simplified comparison process.
Solution Approach 2:
The patent implements feedback by using the comparison result between the current frame and the updated base frame to determine whether to update the base frame. This creates a self-correcting system where the base frame is continuously refined based on actual touch panel behavior, ensuring reliability while maintaining simplicity.
2Reliability
If the base frame is continuously updated with the most recent frame data, then the reliability of touch detection is improved, but the computational overhead increases
Solution Approach 1:
The patent applies partial action by updating the base frame only when necessary - specifically when the comparison between the current frame and base frame indicates a change in touch state. This selective updating approach maintains high reliability for touch detection while minimizing unnecessary computational operations.
Solution Approach 2:
The patent changes the parameter of base frame freshness by continuously updating it with the most recent frame data. This ensures the base frame always represents the current touch panel state, improving detection reliability. The computational overhead is managed by updating only when needed rather than continuously.
3Reliability
If the difference between maximum and minimum sensed values is compared with a base value, then the detection method becomes more robust to base frame flaws, but the response time increases due to continuous updates
Solution Approach 1:
The patent applies preliminary action by pre-computing the base value from the initial frame data and storing it for comparison. This base value serves as a reference threshold that enables robust detection without requiring continuous computational updates, thus reducing response time while maintaining reliability.
Solution Approach 2:
The patent substitutes the mechanical process of continuous base frame updates with a more efficient comparison mechanism using pre-computed base values. This allows the system to maintain robustness against base frame flaws while reducing the computational overhead and response time associated with continuous updates.
Data Source
AI summary
A detecting method for a touch device, the method includes the steps of reading all sensed values of a frame associated with the touch device, computing a difference between a maximum sensed value and a minimum sensed value of all the sensed values of the frame, comparing the difference with a base value to generate a comparison result and executing a corresponding operation based on the comparison result.