Rotating Bezel Authentication for Smart Watch Security
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Solution Overview
Problem
Conventional smart watches rely on password input through a touch screen for unlocking, which may not provide sufficient security or user convenience.
Innovation Solution
A smart watch design featuring a bezel that rotates or moves upward/downward, with sensing units to generate information for user authentication, allowing the control unit to unlock the device based on recognized patterns of movement and state changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If password input through touch screen is used for unlocking, then ease of operation is improved, but security performance deteriorates
Solution Approach 1:
The patent replaces the touch screen interface (electrical/optical system) with a mechanical bezel rotation system for authentication. The bezel sensing unit detects mechanical rotation movements to generate authentication information, substituting the traditional touchscreen password input method with a physical mechanical interaction that is harder to replicate or hack remotely.
Solution Approach 2:
The patent introduces a bezel sensing unit as an intermediary between the user's manual bezel rotation and the control unit's authentication process. This sensing unit converts mechanical bezel movements into electrical signals that the control unit can process for authentication, creating a secure intermediate layer that enhances security while maintaining ease of use.
2Reliability
If bezel sensing unit and rotation mechanism are added, then security performance is improved, but device complexity increases
Solution Approach 1:
The patent makes the bezel serve multiple functions: it acts as both a decorative/peripheral component of the display and a functional authentication input device. The same bezel that surrounds the display also rotates to input authentication data, eliminating the need for separate buttons or dials and reducing overall device complexity despite adding security functionality.
Solution Approach 2:
The patent merges the bezel structure with the authentication input mechanism. Instead of adding a separate authentication device, the existing bezel is integrated with the sensing unit to perform both its structural role and its new function as a rotational input device for security authentication, thereby minimizing additional components.
Data Source
AI summary
Provided herein may be a smart watch. The smart watch may include a display device configured to display an image; a bezel disposed on the perimeter of the display device and configured to rotate; a main body configured to support the display device; and a band coupled to the main body. The main body includes a bezel sensing unit configured to sense movement of the bezel, and a control unit configured to authenticate a user based on information received from the bezel sensing unit and configured to unlock the smart watch in response to the control unit authenticating the user.