Non-Contact Operation Input Device Gesture Sway Correction
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Solution Overview
Problem
Non-contact operation input devices are prone to selecting wrong buttons due to gestures that sway or move slantly, leading to incorrect inputs, which can be troublesome and increase the risk of infectious disease transmission through contact.
Innovation Solution
An operation input device with a display panel and a sensing portion that outputs distance and position values of a pointer from the display surface, allowing for non-contact selection and highlighting of operation images to prevent wrong inputs, using a capacitive sensing panel to recognize the pointer's position and distance, and applying highlighting if different operation images are pointed at different distances.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If non-contact operation is implemented to prevent infectious disease transmission, then hygiene safety is improved, but input accuracy deteriorates due to gesture sway and slant movement
Solution Approach 1:
The system performs preliminary detection of pointer position at multiple distances before final selection. By detecting the operation image at a first distance and then at a second distance, the system predicts the intended target before contact occurs, allowing correction of sway or slant movement in advance of the actual selection
Solution Approach 2:
The system provides visual feedback by highlighting the predicted operation image based on pointer movement trajectory. This feedback allows the user to see what will be selected and adjust their gesture accordingly, improving input accuracy while maintaining non-contact operation
2Measurement precision
If touch panel is used for precise input, then input accuracy is improved, but hygiene safety deteriorates due to contact with device surface
Solution Approach 1:
The patent replaces the mechanical contact-based touch panel system with a non-contact sensing system that detects pointer position and movement trajectory through electromagnetic or optical fields, eliminating physical contact while maintaining input precision
Solution Approach 2:
The system introduces an intermediary prediction mechanism that translates non-contact pointer movement into accurate operation image selection. The prediction function acts as a mediator between the user's gesture and the final input, compensating for the lack of direct contact feedback
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution effectively reduces wrong inputs by providing distinct highlighting of operation images, allowing users to correct their gestures and preventing infectious disease transmission by minimizing contact with the device.
Implementation Method 1
using a capacitive sensing panel to recognize the pointer's position and distance
Data Source
AI summary
An operation input device accepts non-contact operation on an operation image with a pointer. The operation input device includes a display panel and a sensing portion. The sensing portion outputs a first output value and a second output value. If a first operation image, which is an operation image corresponding to the second output value observed when the first output value is equal to a first reference value, and a second operation image, which is an operation image corresponding to the second output value observed when the first output value is equal to a second reference, differ, the display panel displays the first and second operation images with highlighting.