Deployable Grip and Adaptive Keyboard for One-Handed Mobile Typing
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Solution Overview
Problem
Traditional virtual keyboards on mobile devices become cumbersome for one-handed use when the device screen size exceeds a certain threshold, making it difficult for users to type efficiently with only one hand, especially in situations where the other hand is occupied.
Innovation Solution
A mobile device design featuring a deployable grip mechanism and a virtual keyboard configuration that adjusts to a one-handed mode, where the keyboard is positioned closer to the user's hand, with enlarged keys and a gesture reference area for improved accessibility, and a processor-driven prediction engine to optimize key placement based on user behavior.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If a traditional virtual keyboard is used on a mobile device with a screen size above 125 mm diagonal, then the device can display more content, but one-handed typing becomes difficult and cumbersome
Solution Approach 1:
The keyboard layout is made dynamic and adaptive rather than static. The system automatically detects whether the user is holding the device in portrait or landscape orientation and repositions the keyboard accordingly - in portrait mode the keyboard is positioned at the bottom for one-handed use, while in landscape mode it shifts to the side for two-handed typing. This dynamic adaptation resolves the contradiction by allowing the keyboard to optimize its position based on real-time usage context.
Solution Approach 2:
The keyboard's positional parameter is changed based on device orientation. When the device is rotated from portrait to landscape orientation, the keyboard transitions from a bottom-positioned layout to a side-positioned layout. This parameter change allows the same keyboard to serve different usage scenarios effectively, maintaining ease of operation regardless of screen size or orientation.
2Area of stationary object
If the mobile device screen size increases above 125 mm diagonal, then more content can be displayed, but the user must use two hands to type comfortably
Solution Approach 1:
The system dynamically adjusts keyboard positioning based on detected device orientation. In portrait orientation, the keyboard remains at the bottom allowing one-handed operation. In landscape orientation, the keyboard repositions to the side enabling comfortable two-handed typing. This dynamic behavior allows the device to accommodate larger screen areas while adapting hand usage requirements to match the orientation being used.
3Shape
If the virtual keyboard is positioned centrally on the touchscreen, then the layout is symmetric and traditional, but it becomes inaccessible for one-handed use on larger devices
Solution Approach 1:
The keyboard layout transitions from a symmetric central position to an asymmetric position based on device orientation. In portrait mode, the keyboard is positioned asymmetrically at the bottom of the screen, making it easily accessible to the thumb of the hand holding the device. This asymmetric positioning resolves the contradiction by prioritizing accessibility over symmetry when needed.
Solution Approach 2:
The keyboard's horizontal and vertical position parameters are dynamically adjusted based on orientation detection. In portrait orientation, the keyboard is positioned at the bottom center; in landscape orientation, it moves to the side center. This dynamic repositioning maintains optimal accessibility while adapting to different usage contexts.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables secure one-handed operation of mobile devices with larger screens by providing a comfortable grip and intuitive key placement, enhancing typing accuracy and convenience in various scenarios.
Implementation Method 1
a coupling hinge coupling the first body portion to the second body portion and for providing movement of the second body portion from a first position to a second position
Implementation Method 2
The retention system includes a single magnet or multiple magnets on the second body portion and a complimentary magnet or ferromagnetic components on the first body portion
Implementation Method 3
The retention system includes a spring and cam system in the coupling hinge for providing a force to maintain the position of the second body portion relative to the first body portion
Data Source
AI summary
Provided is a mobile device including a first body portion containing operational components of the mobile device, a second body portion coupled to the first body portion on a rear surface, containing auxiliary operational components of the mobile device, and a coupling hinge coupling the first body portion to the second body portion and for providing movement of the second body portion from a first position to a second position. The first body portion has a display surface and the rear surface opposite the display surface. The rear surface has a cavity. In the first position, the second body portion is recessed within the cavity of the first body portion. In the second position, the second body portion is positioned on the rear surface of the first body portion and the cavity is at least partially open to form a grip area.