3D Gesture Input Detection for Touch Panels
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Solution Overview
Problem
Information processing devices with touch panels have limited input methods, restricting user interaction and functionality as they primarily rely on two-dimensional inputs, lacking adaptability to diverse user gestures and motions.
Innovation Solution
A method for driving information processing devices that detects three-dimensional motion inputs by calculating vertical and horizontal movement distances of an operating body, allowing for intuitive operation through gestures such as page turning, by outputting signals only when specific threshold distances and movement criteria are met, and utilizing a dual-mode driver circuit for efficient display updating.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a touch panel is used for position input, then the device can detect two-dimensional contact or proximity, but the input methods are limited and lack adaptability to diverse user gestures
Solution Approach 1:
The patent extends the traditional two-dimensional touch panel capability to three-dimensional space by detecting vertical movement (Z-axis) in addition to horizontal (X-Y plane) movement. This dimensional expansion enables the system to recognize gestures such as page turning, flipping, and other three-dimensional motions, thereby increasing input method versatility while maintaining ease of operation through intuitive gesture-based interaction
2Productivity
If the touch panel outputs signals for all detected movements, then input responsiveness is high, but false inputs from small movements or vibrations are generated
Solution Approach 1:
The patent introduces threshold parameters for both vertical movement distance and horizontal movement distance to filter and validate input signals. By comparing detected movements against these predefined thresholds, the system maintains high responsiveness to genuine user gestures while eliminating false inputs caused by minor movements, vibrations, or accidental contacts, thus improving input accuracy without sacrificing productivity
Data Source
AI summary
A method for driving an information processing device which is adaptable to a wider variety of input methods is provided. The coordinates of an operating body at a starting point in the XYZ space and the coordinates of the operating body at an ending point in the XYZ space after a certain period of time are obtained, and the Z coordinate at the ending point and the movement distance on the X-Y plane in the certain period of time are calculated. Then, a signal is output only in the case where both the distance from an operating surface to the operating body in the vertical direction and the movement distance in the horizontal direction exceed the respective threshold values. In this manner, input operation can be performed by a three-dimensional motion, which includes movement of the operating body in the vertical direction as well as in the horizontal direction.