Touch Panel Gesture Area for Nautical Chart Symbol Selection
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Solution Overview
Problem
Existing touch panel devices require multiple operations for copy and paste processing, which can be cumbersome and prone to mistakes, especially when moving icons or selecting symbols, as they necessitate waiting for a predetermined time period and can interfere with other processing.
Innovation Solution
A touch panel device with a display unit, detector, and controller that creates an area based on detected touch positions, allowing for simple selection and processing of symbols, including specifying the closest symbol to the center of the area, performing cut or copy operations, and enabling intuitive paste operations without continuous touch input.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple touch operations are performed for copy and paste processing, then the processing can be completed, but the operation becomes troublesome and time-consuming
Solution Approach 1:
The patent combines multiple touch operations into a single integrated gesture. By detecting touch positions at two or more locations simultaneously, the system creates an area that automatically triggers copy or paste functions, eliminating the need for separate select-then-copy or long-press sequences used in conventional devices.
Solution Approach 2:
The system performs preliminary detection of touch positions and creates the operational area before the user completes the gesture. This allows the device to prepare the copy or paste function in advance, so that when the user lifts their finger, the operation is already ready to execute, reducing the overall interaction time.
2Reliability
If touch over predetermined time period is used for moving icons, then the operation can be performed, but the operator needs to wait for the predetermined time period and cannot perform operation promptly
Solution Approach 1:
The patent replaces the time-based mechanical waiting system with a spatial gesture recognition system. Instead of requiring the user to hold a touch for a predetermined duration, the system detects the spatial relationship between multiple touch positions and automatically determines the intended operation (copy, paste, or move) based on the created area and symbol positions.
3Productivity
If short touch is used for other processing, then the operation is quick, but other processing may be performed mistakenly when moving icon
Solution Approach 1:
The patent applies different operational meanings to different spatial configurations of touch positions. The same quick touch gesture can create different areas depending on the distance and arrangement of touch points, allowing the system to distinguish between intended copy/paste operations and other commands like selection or movement, eliminating mistaken operations.
4Measurement precision
If multiple operations are required for symbol selection, then precise selection can be achieved, but the operation becomes complex and mistake-prone
Solution Approach 1:
The patent transitions from one-dimensional sequential operations (tap-select-then-operate) to two-dimensional spatial gesture recognition. By analyzing the spatial relationships between multiple touch positions simultaneously, the system creates areas that naturally bound and identify target symbols, achieving precise selection through spatial configuration rather than multiple sequential steps.
Data Source
AI summary
A touch panel device displays a nautical chart and symbols indicating waypoints arranged on the nautical chart. The touch panel device detects touch operations at two or more positions on the display screen and touched positions thereof. The touch panel device creates an area on the display screen based on the two or more detected touched positions, specifies one or more of the symbols located within the created area, and performs cut processing and the like on the one or more of the symbols.