Virtual Target Window for Single-Handed Mobile Device Accessibility
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Solution Overview
Problem
Mobile device users face frustration and accessibility issues due to the size of screens, making it difficult to reach top elements with a single hand, leading to potential device drops and distractions.
Innovation Solution
A system that receives directional gestures from users to predict desired elements on the screen, creating a virtual target window that relocates elements to a more accessible position, combining intent prediction from past usage with directional gesture analysis.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the display screen size is increased to provide more content and functionality, then the productivity and information capacity are improved, but the ease of operation deteriorates because elements become inaccessible to single-handed users
Solution Approach 1:
The patent introduces a spatial dimension solution by creating a virtual target window that appears at a different location on the display than the original element. This allows users to access elements through a intermediary spatial representation, effectively adding a dimensional layer to the interaction space and resolving the contradiction between large screen capacity and single-handed accessibility.
Solution Approach 2:
The virtual target window serves as an intermediary between the user and the original display element. Instead of requiring direct access to elements at their original positions, the system creates this intermediate representation that can be positioned in accessible locations, mediating the interaction and enabling single-handed operation of large screens.
2Productivity
If the display screen size is increased to provide more content and functionality, then the productivity and information capacity are improved, but the device complexity increases due to additional interaction mechanisms
Solution Approach 1:
The patent creates a copy of the display element in the form of a virtual target window. This copy contains the same functional information as the original element but can be independently positioned and interacted with. The copying mechanism allows the system to maintain information capacity while simplifying the interaction model, as users interact with the copy rather than requiring complex gestures to access original elements.
Solution Approach 2:
The interaction mechanism is segmented into distinct components: gesture recognition, intent prediction, virtual target window creation, and element relocation. This segmentation allows each component to be optimized independently and reduces overall system complexity by breaking down the complex task of making large-screen elements accessible into manageable functional modules.
3Ease of operation
If elements are relocated to improve accessibility for single-handed users, then the ease of operation is improved, but the original display layout is disrupted
Solution Approach 1:
The display system is segmented into two independent layers: the original display layout that maintains its stable composition and the virtual target window layer that provides accessibility. The virtual target window operates as a separate compositional layer that can be positioned and interacted with without affecting the underlying original layout, thus maintaining stability while improving accessibility.
Solution Approach 2:
The virtual target window is nested within the display system as an overlaying element. This nesting allows the virtual window to be superimposed on the display without disrupting the original layout structure. The original elements remain in their stable positions while the virtual target window provides an accessible interface layer on top, similar to how nested dolls allow one structure to contain another without altering the outer form.
Data Source
AI summary
An approach is provided for receiving, from a user of the mobile device, a directional gesture entered on a touch-enabled display screen. The directional gesture was entered using an input instrument, such as a finger or thumb, operated by the user. In response to receiving the directional gesture various actions are performed. A desired element that is currently displayed on the touch-enabled display screen is predicted based on the direction of the directional gesture. The current application display is cloned to create a cloned copy that is provided to the user in a virtual target window in a position that makes the desired element accessible to the user's input instrument.