Adaptive Virtual Keyboard Layout for Blind Typing
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Solution Overview
Problem
Existing virtual keyboards lack tactile feedback and adaptability, leading to reduced typing efficiency and comfort, especially for blind typing on foldable devices with varying hand sizes.
Innovation Solution
A user-adaptive virtual keyboard system that dynamically adjusts keyboard layout properties such as key size, pitch, gap, and aspect ratio based on detected touch inputs and user hand profiles, allowing for personalized typing experiences.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fixed virtual keyboard layout is used, then the device complexity is reduced, but the adaptability to different hand sizes and typing preferences deteriorates
Solution Approach 1:
The virtual keyboard layout transitions from a static fixed design to a dynamic adaptive design that automatically adjusts key positions, sizes, and spacing based on detected hand dimensions and typing patterns, resolving the contradiction between adaptability and complexity
Solution Approach 2:
The system modifies keyboard layout parameters (key size, pitch, gap, aspect ratio) based on detected user characteristics, enabling the keyboard to adapt to different hand sizes while maintaining manageable complexity through algorithmic parameter adjustment
2Ease of operation
If tactile feedback is added to virtual keyboard keys, then the ease of operation for blind typing is improved, but the device complexity increases
Solution Approach 1:
The patent replaces physical tactile feedback mechanisms with software-based solutions including visual indicators, haptic feedback through the display, and adaptive layout adjustments that provide tactile-like guidance without mechanical components
Solution Approach 2:
The system introduces intermediary feedback mechanisms such as visual cues and haptic vibrations that mediate between the virtual keyboard interface and the user's tactile sense, enabling blind typing without direct mechanical feedback
3Manufacturing precision
If the virtual keyboard accommodates all hand sizes with fixed layout, then the ease of manufacture is improved, but the typing precision for individual users deteriorates
Solution Approach 1:
The keyboard layout transitions from uniform fixed dimensions to locally optimized key positions and sizes tailored to each user's hand measurements, achieving both manufacturing consistency through standardized adaptation algorithms and individualized typing precision
Data Source
AI summary
There are provided methods and systems for a user-adaptive virtual keyboard comprising a plurality of virtual adaptive keys. In examples, the systems, methods, and processor-readable media can be applied to dynamically configure a user interface of the user-adaptive virtual keyboard, to adapt to a user's needs and preferences, while the user is performing a typing action. In response to detecting a user touch input, the user-adaptive virtual keyboard may generate an updated virtual keyboard UI, by dynamically adjusting one or more properties of the plurality of virtual adaptive keys. The disclosed methods and systems may enable improved user interaction with a virtual keyboard on an electronic device, for example, while a user is performing blind typing actions.