Rotating Back Surface Keyboard for Modular Device Input
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Solution Overview
Problem
In modular portable communication devices, users are limited by the small and inefficient input facilities, even when additional modules are added, as existing solutions do not effectively provide enhanced user input options without increasing device thickness, weight, or complexity.
Innovation Solution
A dual orientation magnetic retention system is used, where four magnets on one module connect with steel discs on another, allowing for a hidden input surface to be exposed, enabling wireless interaction and data exchange, thus providing an enlarged input area without the thickness and weight penalties of traditional keyboards.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a traditional physical keyboard is added to provide enlarged input area, then user input efficiency is improved, but device thickness and weight increase
Solution Approach 1:
The patent utilizes the back surface of the device as an additional dimension for input. By placing a keyboard on the back surface that can be exposed through rotational movement, the system provides enlarged input area without increasing the device's front thickness, effectively moving the input function to another spatial dimension.
Solution Approach 2:
The keyboard is implemented as a dynamic component that can rotate between a hidden position (flush with back surface) and an exposed position (protruding for typing). This dynamic configuration allows the device to provide keyboard functionality only when needed, maintaining thinness during normal use while enabling enlarged input area when required.
2Productivity
If a traditional physical keyboard is added to provide enlarged input area, then user input efficiency is improved, but device weight increases
Solution Approach 1:
The patent employs a thin film or flexible membrane structure for the keyboard assembly, allowing the back surface to be rotated into position without requiring a bulky rigid structure. This thin-film approach provides the necessary input surface area while minimizing the additional weight introduced by the keyboard mechanism.
Solution Approach 2:
The rotational mechanism allows the keyboard to be deployed only when needed, meaning the full keyboard structure does not need to be permanently attached or constantly positioned. This dynamic deployment reduces the effective weight impact compared to a permanently extended keyboard structure.
3Adaptability or versatility
If modular add-on modules are added to provide extended functions, then device versatility is improved, but device complexity increases
Solution Approach 1:
The patent combines multiple functions into a single integrated module: the back surface rotation mechanism serves both as a physical keyboard and as a magnetic docking interface for external modules. By merging the input function with the module retention function, the system achieves versatility without proportionally increasing complexity.
Solution Approach 2:
The back surface is designed with universal functionality, serving as both a keyboard input surface and a magnetic docking interface for various external modules. This multi-functional design allows a single structural element to provide both user input capability and module attachment capability, reducing overall system complexity.
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
This solution offers improved user input efficiency by exposing a hidden input surface, reducing the need for additional modules and maintaining device thinness, while ensuring secure retention and data/power sharing, enhancing the modular device's input capabilities.
Implementation Method 1
four magnets on one module connect with steel discs on another
Data Source
AI summary
A modular portable device system and method allow extended user input. The system includes a first device and a second device, the devices being attachable via a plurality of magnetic attachment points (magnets or magnetically responsive attachment points) on each. In a first configuration, the devices are held together by all of the magnetic attachment points, and in this configuration an extended user input facility on the second device is not user-accessible. In a second configuration, the devices are connected by only a subset of the magnetic attachment points, and in this second configuration the extended user input facility is user-accessible. A Hall Effect sensor on the first device and sensor magnet on the second device are positioned to overlap when the devices are connected in the second configuration in order to alert the first device that the second device has been attached in the extended input mode.