Variable Detection Area Touchscreen for Linear Gesture Recognition
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Solution Overview
Problem
Conventional touch operation methods, such as swiping and pinch-in/pinch-out, face challenges in accurately scrolling through lists and enlarging preview images on touch panels, as the enlarged detection area around the scroll bar or icons is not effectively utilized, leading to suboptimal operability and incomplete recognition of touch gestures.
Innovation Solution
An input device and method that includes a touchscreen sensor and a hardware processor to detect touch operations, determining whether a touch operation is within a first detection area and, if so, whether it indicates a linear trajectory, and then controlling the detection area to expand to a second, larger area for subsequent operations, enhancing the recognition and execution of linear touch gestures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If an enlarged detection area is provided around the elevator in the scroll bar, then the ease of operation for touching the elevator is improved, but the ability to recognize linear trajectory operations for scrolling is deteriorated
Solution Approach 1:
The detection area is segmented into two distinct zones: a first detection area corresponding to the scroll bar region and a second detection area corresponding to the enlarged icon region. This segmentation allows the system to apply different detection rules to different areas, enabling accurate trajectory recognition in the scroll bar area while maintaining easy access to icons through the enlarged detection area.
Solution Approach 2:
Different detection characteristics are applied to different locations on the touchscreen. The scroll bar area maintains precise trajectory detection capabilities, while the icon areas have enlarged detection zones that prioritize ease of selection. This local differentiation resolves the contradiction by optimizing each area for its specific function.
2Ease of operation
If a detection area is enlarged around an icon, then the ease of selecting the icon is improved, but the detection area extends beyond the scroll bar range causing incorrect operation recognition
Solution Approach 1:
The touchscreen is divided into functionally distinct detection areas: scroll bar detection areas for trajectory-based scrolling operations and icon detection areas for selection operations. This segmentation ensures that enlarged icon detection areas do not interfere with scroll bar operation recognition, as each area has its own dedicated detection logic.
Solution Approach 2:
The system introduces an intermediary detection mechanism that determines which detection area should be active based on the current operational context. When a touch operation occurs, the system intermediates between the enlarged icon detection area and the scroll bar detection area to correctly interpret the user's intent, preventing misrecognition of scrolling gestures as icon selections.
3Ease of operation
If the detection area is expanded for subsequent linear touch operations, then the ease of operation is improved, but the device complexity increases
Solution Approach 1:
The detection area configuration is made dynamic rather than static. The system automatically adjusts which detection area is active based on the detected touch operation type. When a linear trajectory is detected in the scroll bar area, the system dynamically switches to the enlarged icon detection area for subsequent touches, providing ease of operation without requiring complex manual configuration.
Solution Approach 2:
The system performs self-service by automatically managing the detection area transitions based on the detected touch patterns. The hardware processor autonomously determines when to switch between the first and second detection areas based on the linear trajectory detection, eliminating the need for external intervention or complex user configuration while maintaining operational ease.
Data Source
AI summary
An input device including a touchscreen sensor that detects a touch operation from a user, a non-transitory computer-readable recording medium including a program, and a hardware processor that executes the program to operate as: an area determination unit that determines whether a detected touch operation is performed in a first detection area; a trajectory determination unit that, when it is determined that the detected touch operation is performed in the first detection area, determines whether or not the detected touch operation indicates an operation drawing a linear trajectory; and a detection control unit that, when it is determined that the operation drawing a linear trajectory is indicated, controls the area determination unit to determine whether a next touch operation is performed in a second detection area that is larger than the first detection area.