Dynamic Sensing Area Adjustment for Touch Gesture Reliability
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Solution Overview
Problem
Existing electronic devices struggle to accurately determine user operations, particularly in preventing malfunctions caused by finger position shifts during button interactions, as they fail to differentiate between intentional and unintentional touches.
Innovation Solution
An electronic device with a display unit and a determination unit that sets a second sensing area when the touch start position is in the button's end area, expanding the sensing area to include an additional area for accurate touch detection, and decides the criteria for operations based on an operation description before the first touch.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the sensing area is expanded to prevent malfunctions from finger position shifts, then reliability is improved, but measurement precision deteriorates because it becomes difficult to distinguish intentional from unintentional touches
Solution Approach 1:
The sensing area is divided into multiple regions (first sensing area corresponding to the button display area, and a second sensing area extending beyond the button). By segmenting the sensing area and assigning different functions to different regions, the system can distinguish between intentional touches (within the button area) and unintentional touches (in the extended area), thereby resolving the contradiction between reliability and measurement precision.
2Ease of operation
If the sensing area is expanded to include an additional area beyond the button display area, then ease of operation is improved by allowing operation cancellation, but device complexity increases due to multiple sensing area management
Solution Approach 1:
The system pre-establishes multiple sensing areas (first sensing area for the button and second sensing area extending beyond it) before touch detection occurs. This preliminary configuration allows the system to automatically determine touch intent based on which area is touched, providing ease of operation for cancellation while avoiding complex real-time decision logic that would increase device complexity.
Data Source
AI summary
A printing apparatus includes a controller that determines that the button is operated according to the second operation in which the operation tool leaves the button following the first operation in which the operation tool moves to the button being operated, and determines that the button is not operated according to the third operation in which the operation tool leaves the button following the first operation being operated. The controller makes a determination of the second operation and the third operation according to the operation description before the first operation.