Rotatable Input Mechanism for Off-Display Gesture Navigation
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Solution Overview
Problem
Reduced-size electronic devices face usability challenges due to small screen sizes, where users struggle with accurate touch inputs, leading to frequent erroneous responses and power wastage, as existing touch screen interfaces require users to obscure content on the screen for input, which is inefficient and power-intensive.
Innovation Solution
Implementing a rotatable input mechanism that allows users to navigate lists and select items without touching the screen, using gestures and rotations to interact with the device, enabling inputs off the display and reducing the need for screen activation, thus conserving power and improving usability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If touch screen interface is used for list navigation and item selection, then the device can provide a standard user interface, but users experience difficulty providing accurate touch inputs on small screens and must obscure content to input
Solution Approach 1:
The patent introduces a physical dial as an intermediary input device between the user and the digital interface. The dial provides tactile feedback and precise rotational control, allowing users to navigate lists and select items without touching the small screen, thereby resolving the contradiction between ease of operation and input accuracy on reduced-size devices.
Solution Approach 2:
The patent transitions from two-dimensional touch screen interaction to three-dimensional physical dial rotation. By adding the rotational dimension, users can navigate interfaces with precise control without obscuring screen content, effectively moving the input mechanism to another spatial dimension.
2Loss of information
If the display is activated for user input, then users can see the screen content, but power is consumed and battery life is reduced
Solution Approach 1:
The physical dial interface allows users to interact with the device without requiring the display to be active. Users can navigate and select items through tactile feedback from the dial itself, enabling the device to operate in low-power modes while maintaining full input functionality, thus eliminating the need to keep the screen illuminated during input operations.
3Device complexity
If touch inputs are required on small screens, then the interface can be simple, but users must obscure content which increases erroneous inputs and responses
Solution Approach 1:
The physical dial serves as a mediator that provides precise input control without requiring users to touch the small screen. The tactile feedback and rotational mechanism reduce input errors while maintaining interface simplicity, resolving the contradiction between interface simplicity and input reliability.
Data Source
AI summary
The present disclosure generally relates to methods and apparatuses for detecting gestures on a reduced-size electronic device at locations off of the display, such as gestures on the housing of the device or on a rotatable input mechanism (e.g., a digital crown) of the device, and responding to the gestures by, for example, navigating lists of items and selecting items from the list; translating the display of an electronic document; or sending audio control data to an external audio device.