Crown-Based User Interface for Smartwatch Navigation
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Solution Overview
Problem
Existing methods for manipulating user interface objects on small personal electronic devices, such as smartwatches, are inefficient and lack precision.
Innovation Solution
The use of a crown-based user interface system, where movements of a physical or touch-sensitive crown on a personal electronic device allow for navigation, selection, and manipulation of user interface objects, including rotation, push, and pull actions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If existing methods for manipulating user interface objects are used on small personal electronic devices, then the device maintains a simple interface design, but the manipulation efficiency and precision deteriorate
Solution Approach 1:
The crown component is divided into multiple independent functional segments: rotational movement for navigation, push action for selection, and pull action for alternative operations. This segmentation allows each movement type to be optimized for its specific function, improving both efficiency and precision without requiring complex multi-touch gestures on the small display.
Solution Approach 2:
The crown serves as a physical intermediary control mechanism between the user and the digital interface. By providing tactile feedback and distinct mechanical movement options (rotate, push, pull), the crown mediates user intentions with high precision, solving the limitation of small touchscreen real estate while maintaining accurate object manipulation.
2Measurement precision
If a crown-based user interface system is implemented, then navigation and manipulation precision improve, but device complexity increases
Solution Approach 1:
The crown is designed as a universal control element that performs multiple functions: rotating for navigation through lists and interfaces, pushing for selection and confirmation, and pulling for alternative actions. This multi-functionality reduces the need for separate physical buttons or complex touchscreen gesture systems, improving precision while actually simplifying the overall device architecture.
Solution Approach 2:
The crown provides self-contained tactile feedback and mechanical resistance that guides user interaction without requiring visual confirmation or complex software processing. The physical properties of the crown (friction, click mechanisms, rotational detents) provide inherent feedback that simplifies the interface system by reducing reliance on software-based gesture recognition and visual feedback loops.
Data Source
AI summary
User interface navigation on a personal electronics device based on movements of a crown is disclosed. The device can select an appropriate level of information arranged along a z-axis for display based on crown movement. The navigation can be based on an angular velocity of the crown.