Virtual Keyboard Layout Adaptation for Mobile Typing Accuracy
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Solution Overview
Problem
The existing virtual keyboard layouts on mobile terminals are not adaptable to user movement, leading to decreased accuracy when typing while walking or running, as they require manual switching between layouts and occupy valuable screen space with dedicated switching keys.
Innovation Solution
A method that automatically determines the user's movement level using sensors and a pedometer to dynamically select and display a virtual keyboard layout with larger key sizes for faster movement, eliminating the need for manual input and optimizing screen space.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a full-keyboard layout is used to provide comprehensive character input capability, then the keyboard includes all 26 characters plus functional keys, but the key size becomes too small for accurate tapping when the user is moving
Solution Approach 1:
The patent applies dynamics by making the keyboard layout changeable based on user movement state. The system dynamically switches between full-keyboard layout and ABC-9-key layout according to whether the user is stationary or moving, allowing the keyboard to adapt its structure to different operational conditions and resolve the contradiction between comprehensive character input and tapping accuracy
2Measurement precision
If the virtual keyboard layout is manually switched to ABC-9-key layout for better mobility typing, then the key size increases for easier tapping, but the switching process becomes complex and requires multiple manual steps
Solution Approach 1:
The patent applies self-service by enabling the keyboard layout to automatically switch based on sensor-detected user movement without requiring manual user intervention. The system monitors acceleration data, determines movement state, and autonomously selects the appropriate keyboard layout, eliminating the complex manual switching process while maintaining tapping accuracy
3Ease of operation
If dedicated soft keys for layout switching are added to the virtual keyboard, then the user can manually switch layouts, but the screen space available for useful characters is reduced
Solution Approach 1:
The patent applies taking out by removing the need for dedicated layout switching keys from the keyboard interface. Instead of adding physical switching keys that would occupy screen space, the system extracts the switching function and implements it through sensor-based automatic detection and software-controlled layout transitions, preserving maximum screen space for character input
4Area of stationary object
If the virtual keyboard remains in default layout during user movement, then the screen space is maximized and no switching keys are needed, but the typing accuracy dramatically decreases when walking or running
Solution Approach 1:
The patent resolves this contradiction by making the keyboard layout dynamic rather than static. The system continuously monitors user movement through sensors and automatically adjusts the keyboard layout in real-time, maintaining both full screen utilization and high typing accuracy by selecting the appropriate layout based on current movement conditions
Data Source
AI summary
A method is described, the method relating to displaying a virtual keyboard layout to be used for typing a text on a mobile terminal. The method can include determining a movement level of the mobile terminal, selecting a virtual keyboard layout among a set of virtual keyboard layouts displayable on a screen of the mobile terminal based at least partly on the determined movement level, and displaying the selected virtual keyboard layout on the screen.