Mobile Sleeve Input With Magnetorheological Haptic Damping
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Solution Overview
Problem
Existing mobile devices, such as smartphones and tablets, rely heavily on touch-sensitive displays for operation, requiring users to constantly look at the screen and hold the device in a specific manner, which is inconvenient and limits intuitive operation, especially when wearing gloves.
Innovation Solution
A sleeve apparatus with a magnetorheological braking apparatus and input apparatus that allows for intuitive, tactile operation without visual attention, featuring a movable operating element with targeted damping and haptic feedback, enabling versatile manual control through a sleeve part that can be coupled to existing devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If touch-sensitive display operation is used exclusively, then device compactness is maintained, but ease of operation deteriorates due to requirement of visual attention and specific holding posture
Solution Approach 1:
The patent introduces a sleeve apparatus as an intermediary device that surrounds the mobile device and provides physical operating elements (knobs, switches, buttons) independent of the touch display. This mediator enables tactile operation without requiring users to look at the screen or hold the device in specific orientations, thereby improving ease of operation while keeping the core mobile device compact.
2Ease of operation
If radar scanner or image identification systems are added for touch-free gesture detection, then operation without visual attention is enabled, but device complexity and cost increase due to additional detection systems
Solution Approach 1:
Instead of integrating complex radar or image identification systems into the mobile device, the patent uses a sleeve apparatus as an external intermediary that provides physical operating elements. This approach enables tactile operation without visual attention while avoiding the complexity and cost of embedding sophisticated detection systems within the mobile device itself.
3Ease of operation
If physical operating elements are integrated directly into the mobile device, then ease of operation improves, but device compactness deteriorates
Solution Approach 1:
The patent segments the operating elements from the mobile device by placing them in a separate sleeve apparatus. This segmentation allows the mobile device to remain compact while providing physical knobs, switches, and buttons in the external sleeve that users can manipulate with tactile feedback, thereby improving ease of operation without increasing the volume of the mobile device itself.
4Measurement precision
If magnetorheological braking apparatus is added to dampen operating element movement, then control precision improves, but device complexity increases
Solution Approach 1:
The patent employs a magnetorheological braking apparatus that changes the rheological parameters (viscosity, damping characteristics) of a fluid medium through magnetic field application. This allows dynamic control of the operating element's movement characteristics, providing precise tactile feedback and control without requiring complex mechanical braking systems, thereby improving control precision while managing device 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
Enables reliable and convenient operation of mobile devices with gloves, allowing for precise control and feedback without constant visual attention, while maintaining device compactness and integrating seamlessly into existing production processes.
Implementation Method 1
The sleeve apparatus comprises at least one magnetorheological braking apparatus
Data Source
AI summary
A sleeve or case for a mobile device, such as a smartphone or tablet or other types of hand-held device or mobile smart device, has a sleeve part for at least partially enclosing the mobile device and an input device arranged in the sleeve part for controlling the mobile device which can be received in the sleeve part. The input device includes a movable control element and a magnetorheological brake. Any movement of the control element can be selectively damped by way of the magnetorheological brake.