Proximity Sensor Gesture Correction for Touch Accuracy
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Small touch panels and one-handed operation of electronic devices often result in unintended touch inputs due to the user's grip, leading to unintended device reactions.
Innovation Solution
An electronic apparatus equipped with both a touch sensor and a proximity sensor, where the controller adjusts the touch trace input by considering the intended gesture based on the motion of the object before and after the touch, applying weighted values to correct the input and change the operation grid according to the user's grip direction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If a small touch panel is used in electronic apparatuses, then the device size is reduced and portability is improved, but unintended touch inputs occur more frequently due to the user's grip
Solution Approach 1:
The patent introduces a proximity sensor as an intermediary device between the user's hand and the touch panel. This sensor detects the hand's proximity and movement before touching occurs, allowing the system to distinguish between intentional touch gestures and unintended inputs caused by grip, thereby resolving the contradiction between small device size and touch input accuracy
Solution Approach 2:
The system performs preliminary detection of hand movement and proximity before the actual touch input occurs. By analyzing the trajectory and position of the hand in advance, the system can predict and correct unintended touch inputs, maintaining reliability while preserving the compact form factor
2Ease of operation
If a user operates the electronic apparatus with one hand, then ease of operation is improved, but unintended touch inputs increase due to grip direction
Solution Approach 1:
The proximity sensor provides continuous feedback about the user's hand position and movement direction before touching occurs. The system uses this feedback to adjust and correct the touch input trajectory, ensuring accurate recognition even when users operate with one hand, thus maintaining both ease of operation and input accuracy
Solution Approach 2:
The system dynamically adjusts the touch input correction based on the detected hand movement trajectory and grip direction. By making the correction adaptive and responsive to real-time hand behavior, the system maintains high accuracy while preserving the convenience of one-handed operation
Data Source
Figure 1~4
Figure 5~6
Figure 7~9
AI summary
An electronic apparatus including a proximity sensor is provided. The apparatus includes a touch sensor configured to sense a touch trace of the object in response to a user gesture of touching the electronic apparatus using an object and moving the touched point being input, a proximity sensor configured to sense a motion of the object before and after the touch, and a controller configured to change the touch trace based on a direction of motion of the object before and after the touch, and recognize the user gesture according to the changed touch trace. Accordingly, the touch trace may be changed and thus, an accurate control operation may be performed.