Touch Panel Gesture Detection via Quadrant Segmentation
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Solution Overview
Problem
Current touch panel technologies face challenges in accurately detecting single-finger rotation gestures, which are essential for intuitive user interaction with system terminals.
Innovation Solution
A method and circuit that divide the touch panel into quadrants, record data codes corresponding to touched areas, and compare temporary data with default data to output a rotation gesture signal after a predetermined time, enabling accurate detection of clockwise and anti-clockwise rotations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the touch panel is divided into more quadrants to improve gesture detection precision, then the measurement precision of rotation gesture detection is improved, but the device complexity increases
Solution Approach 1:
The touch panel is divided into multiple quadrants (at least three) with each quadrant assigned a specific data code. This segmentation allows the system to detect which quadrant the finger touches during rotation, enabling precise gesture recognition through sequential recording of quadrant data codes over time.
2Measurement precision
If sequential recording of quadrant data codes is implemented to improve rotation gesture detection accuracy, then the measurement precision is improved, but the loss of time increases due to the predetermined time requirement
Solution Approach 1:
The system performs preliminary actions by sequentially recording quadrant data codes during the predetermined time period before making the final judgment. This preliminary data collection ensures accurate detection of rotation gestures by capturing the sequence of quadrants touched, and only after this preliminary recording is complete does the system compare the temporary data with default data to confirm the gesture.
3Adaptability or versatility
If the number of quadrants is increased to at least three to improve gesture detection capability, then the adaptability of gesture recognition is improved, but the device complexity increases
Solution Approach 1:
The touch panel is segmented into at least three quadrants, each assigned a unique data code. This segmentation enables the system to recognize different rotation gestures (clockwise, anti-clockwise) by detecting the sequence in which quadrants are touched, thereby improving gesture recognition capability while maintaining manageable system complexity through systematic coding.
Data Source
AI summary
A method for detecting a single-finger rotation gesture and a gesture detecting circuit thereof are provided. The gesture detecting circuit comprises a quadrant dividing unit, a register, a control unit, a comparing unit, and an outputting unit. The quadrant dividing unit, according to the center point, divides a touch panel into at least three quadrants and sets a plurality of data codes respectively corresponding to the quadrants. Within a predetermined time, the control unit controls the register to sequentially record the data codes respectively corresponding to the touched quadrants. When the predetermined time is reached, the comparing unit compares to judge whether the temporary data buffered in the register is the same with the default data. If the temporary data is the same with the default data, then the outputting unit outputs a rotation gesture signal.