Gesture-Based Access Control With Haptic Feedback
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Solution Overview
Problem
Existing computing device locking mechanisms using user gestures on presence-sensitive displays can create security issues due to visible traces of gestures, making it easier for unintended users to unlock the device.
Innovation Solution
A method where a computing device outputs a set of selectable objects on a presence-sensitive display, allowing users to select and designate them as part of a candidate passcode by touch and motion gestures, with haptic feedback for identification, and randomizes object arrangements to prevent trace visibility, enabling secure transition between locked and unlocked states.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional gesture-based locking mechanisms are used, then ease of operation is improved, but security is worsened due to visible traces of gestures on the display
Solution Approach 1:
The patent replaces visual gesture tracing on the display surface with haptic feedback through the speaker system. Instead of relying on visual marks left by finger gestures, the system uses audible and tactile feedback (clicks, vibrations, patterns) to guide users through the unlock process, eliminating the security vulnerability of visible traces while maintaining ease of operation.
Solution Approach 2:
The speaker system acts as an intermediary between the user and the locking mechanism. Rather than directly interacting with the display surface through gestures that leave traces, the user receives guidance through haptic and audible feedback from the speaker, which mediates the interaction and prevents direct visual marking of the gesture path.
2Reliability
If passcode entry is required for security, then security is improved, but ease of operation is worsened due to multiple steps and potential for error
Solution Approach 1:
The system implements real-time haptic feedback through the speaker to guide users through each step of the passcode entry process. Different vibration patterns and audible clicks provide immediate confirmation of correct input, reducing errors and the number of attempts needed. This feedback mechanism makes the multi-step security process more intuitive and easier to operate correctly.
Solution Approach 2:
The system performs preliminary verification and guidance through haptic feedback before final authentication is required. Users receive step-by-step tactile guidance that prepares them for the correct sequence of actions, reducing the cognitive load and potential for error during the actual passcode entry, thereby easing operation while maintaining security.
Data Source
AI summary
Aspects of this disclosure are directed to outputting, for display at a presence-sensitive display, a first set of two or more selectable objects in a first arrangement of locations, the computing device operating in a first instance of a limited access state. At least one of the selectable objects includes an element of a predetermined passcode. The computing device may receive an indication of a first gesture to select one of the selectable objects and an indication of a second gesture to designate the selected object as an element of a candidate passcode. The computing device may transition to an access state based at least in part on a comparison between the candidate passcode and the predetermined passcode. The computing device may transition to a second instance of the limited access state, and may output a second set of two or more selectable objects in a second, different arrangement.