Touch Signal Compensation for Abnormal Motion Vectors
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Solution Overview
Problem
Users often inadvertently input wrong touch signals due to excessive force or movement on touch panels, leading to inaccurate input results and operational failures in electronic devices.
Innovation Solution
A method and electronic device that detect abnormal motion vectors on touch panels, record specific time-points when the vector returns to normal, and perform signal compensation operations, such as ignoring or re-reading signals, to correct input errors and improve input fluency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If users apply excessive force on the touch panel, then the touch panel becomes more responsive to input, but the touch panel abnormally moves or shakes resulting in wrong touch signals
Solution Approach 1:
The system performs preliminary detection of motion vectors before processing touch signals. By detecting abnormal motion vectors in advance and identifying the abnormal time period, the system can preemptively mark and compensate for touch signals that will otherwise be incorrect, preventing wrong inputs before they affect operation
Solution Approach 2:
The system continuously monitors motion vectors and provides feedback by comparing them against normal ranges. When abnormal motion is detected, the system feeds back this information to adjust touch signal processing, using the motion vector data to compensate for and correct touch inputs made during abnormal periods
2Measurement precision
If the touch panel is made more sensitive to detect light touches, then delicate inputs are recognized, but false signals from abnormal movement increase
Solution Approach 1:
The motion vector detection mechanism serves as an intermediary between the touch panel and signal processing system. This intermediary layer filters out false signals by detecting abnormal panel movement, allowing the system to maintain high touch sensitivity while blocking harmful false inputs caused by abnormal motion
Solution Approach 2:
The system dynamically changes the processing parameters of touch signals based on motion vector analysis. When abnormal motion is detected, the system adjusts how touch signals are interpreted and processed, using parameter changes to distinguish between legitimate touches and false signals generated during abnormal movement
Data Source
AI summary
A method for processing touch signal and an electronic device using the method are provided, wherein the method includes following steps: as receiving a touch signal of a touch panel, judging whether a motion vector of the touch panel is abnormal; when the motion vector is abnormal, recording a first time-point; judging whether the motion vector returns to normal state from abnormal state; when the motion vector returns to normal state, recording a second time-point; and performing a signal compensation operation on the touch signal of the duration between the first time-point and the second time-point. In this way, the invention can avoid inputting wrong touch signals.