Touch Panel Rectangular Selection Gesture Control
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Solution Overview
Problem
Existing touch panel systems require users to perform fine positional control and multiple steps for tasks like file movement, copying, and icon manipulation, making operations cumbersome and difficult.
Innovation Solution
An electronic apparatus with a touch panel that detects user touches and calculates distances and angles between touch positions over time to set a rectangular area, allowing for simplified selection, movement, deletion, copying, and rearrangement of objects by recognizing intuitive gestures such as approaching, sliding, and rotating fingers on the screen.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional touch panel selection method is used (touching periphery of icon), then precise object selection is achieved, but user operation becomes cumbersome and difficult
Solution Approach 1:
The patent introduces a rectangular area as an intermediary selection mechanism between the user's touch gesture and the target objects. Instead of requiring direct peripheral contact with icons, the system uses a dynamically drawn rectangular area that encompasses multiple objects, serving as a mediator that simplifies the selection process while maintaining precision through the area's boundaries
Solution Approach 2:
The rectangular area is dynamically created and adjusted based on user touch movements. The area expands or contracts as the user drags their finger across the screen, allowing the selection boundary to adapt in real-time to user intent. This dynamic behavior enables intuitive multi-object selection without requiring precise static positioning
2Manufacturing precision
If multiple separate operations are required for file management (selection, movement, copying), then precise control is achieved, but operation time and complexity increase
Solution Approach 1:
The patent merges multiple file management operations into a single continuous gesture. By detecting the movement trajectory of the rectangular area, the system can determine whether the user intends to move, copy, or delete objects based on the gesture's characteristics (direction, distance, speed), thereby combining selection and operation into one unified action rather than requiring separate steps
Data Source
AI summary
Objects are indicated on a display. A touch panel is superposed on the display. An acquiring section operates for detecting user's touches to the touch panel and acquiring positions of the user's touches to the touch panel as touch positions. A decision is made as to whether or not the distance between first and second touch positions decreases in accordance with the lapse of time. A selecting section operates for setting a rectangular area with respect to the display and selecting an object or objects contained in the rectangular area in cases where it is decided that the distance between the first and second touch positions decreases in accordance with the lapse of time. Two opposite corners of the rectangular area are respectively coincident with the first and second touch positions occurring at an initial stage of the user's touches to the touch panel.