Touch-Sensitive Display Text Selection Gestures
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Solution Overview
Problem
Portable electronic devices face challenges in providing an intuitive and efficient user interface for selecting text due to small screens and cumbersome text selection methods, leading to user frustration and inefficiency.
Innovation Solution
A touch-sensitive display with a graphical user interface that allows text selection through gestures, enabling users to initiate a text selection area by detecting specific gestures and modify its endpoints for easy text manipulation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional pushbutton interfaces are used on portable devices, then device functionality is maintained, but user interface complexity increases and ease of operation deteriorates
Solution Approach 1:
The patent replaces the mechanical pushbutton interface with a touch-sensitive display interface that uses gestures to control text selection. This substitution eliminates the need for physical buttons and complex menu hierarchies, directly improving ease of operation while reducing device complexity through software-based interaction models.
Solution Approach 2:
The patent changes the interaction parameters from physical button presses to touch gestures on a display screen. By detecting gesture parameters such as touch location, movement direction, and duration, the system enables intuitive text selection without requiring users to memorize key sequences or navigate complex menus.
2Ease of operation
If text selection tools are made smaller to fit portable screens, then device compactness is maintained, but text selection precision and ease of operation deteriorate
Solution Approach 1:
The patent adds the dimensional aspect of gesture movement to text selection on small screens. Instead of requiring precise point-taps that are difficult on small displays, the system uses gestural movements (swipes, taps, drags) that provide both precision and ease of operation by leveraging natural hand motions across the display surface.
Solution Approach 2:
The patent introduces gesture recognition as an intermediary between the user's physical actions and the text selection function. This intermediary layer translates intuitive gestures into precise text selection endpoints, bridging the gap between ease of operation and selection precision on compact screens.
3Productivity
If multiple key sequences and menu hierarchies are implemented, then device functionality is accessible, but user time consumption increases and productivity decreases
Solution Approach 1:
The patent implements preliminary action by pre-defining gesture-to-text-selection mappings and providing real-time visual feedback during gesture execution. This allows users to quickly and intuitively select text without needing to memorize or navigate through multiple key sequences or menu hierarchies, significantly reducing time consumption and improving productivity.
Data Source
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AI summary
In accordance with some embodiments, a computer-implemented text selection method is performed using an electronic device having a touch-sensitive display. The method can include displaying text on the touch screen display; detecting a text selection initiation gesture with the touch screen display; and in response to the text selection initiation gesture, inserting a text selection area bounded by a first endpoint located in the text at a first location and a second endpoint in the text at a second location. First and second endpoints can be moved by performing further gestures on the touch-sensitive display. Furthermore, word processing functions can be performed on the on the text located in the text selection area.