Contextual Device Unlocking via Temporal and Proximity Data

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Solution Overview

Problem

Current device unlocking methods require manual input or stringent security measures, which can reduce usability and increase the risk of inappropriate access, especially in familiar secure locations where the user's presence can be trusted.

Innovation Solution

A device learns contextual information over time to determine secure locations and automatically unlock when the authorized user is present, using a combination of temporal, location, and proximity data, while locking when the user is not nearby to maintain security in unfamiliar areas.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If manual unlocking methods are used, then security is maintained, but usability deteriorates

Engineering Contradiction:
ImprovesecurityVSAvoidusability
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The unlocking method transitions from static manual requirement to dynamic contextual-based automatic unlocking. The system continuously monitors contextual information (location, time, device state) and adjusts unlocking behavior accordingly, allowing automatic unlocking in secure contexts while maintaining manual requirement in uncertain situations.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The device performs self-validation by automatically monitoring its own contextual information and making unlocking decisions without requiring user intervention. The system monitors its location, time, and state to determine when automatic unlocking is appropriate, serving itself rather than requiring constant user authentication.

Inventive Principle:
Principle #25Self-service

2Ease of operation

If automatic unlocking is implemented, then usability is improved, but security deteriorates

Engineering Contradiction:
ImproveusabilityVSAvoidsecurity
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The system continuously monitors contextual information and uses this feedback to adjust unlocking behavior. By monitoring location, time, and device state, the system receives feedback about the current situation and decides whether automatic unlocking is appropriate, thereby maintaining security while enabling usability improvements.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The system changes the parameters for unlocking based on contextual conditions. Instead of a fixed unlocking requirement, the system adjusts the unlocking behavior based on parameters such as location, time of day, device state, and historical patterns, allowing automatic unlocking when parameters indicate security is not compromised.

Inventive Principle:
Principle #35Parameter changes

3Measurement precision

If contextual monitoring is continuous, then unlocking accuracy is improved, but energy consumption increases

Engineering Contradiction:
Improveunlocking accuracyVSAvoidenergy consumption
Core Design Contradiction:
Measurement precisionVSUse of energy by moving object

Solution Approach 1:

Instead of continuous monitoring, the system performs periodic sampling of contextual information at intervals. The system monitors location, time, and device state at regular intervals rather than continuously, reducing energy consumption while maintaining sufficient accuracy for unlocking decisions.

Inventive Principle:
Principle #19Periodic action

Solution Approach 2:

The system monitors only the necessary contextual parameters required for unlocking decisions rather than all possible data. By selectively monitoring location, time, and device state, the system performs partial monitoring that is sufficient for accurate unlocking while minimizing energy consumption.

Inventive Principle:
Principle #16Partial or excessive action

Data Source

PatentUS11003752B2Contextual device unlocking
Publication Date: 2021.05.11 HEWLETT PACKARD DEVELOPMENT COMPANY LP
  • US11003752B2 patent drawing
  • US11003752B2 patent drawing
  • US11003752B2 patent drawing

AI summary

Examples associated with contextual device unlocking are described. One example storing sets of contextual state information associated with unlock events associated with a device. A first contextual state of the device is detected. The first contextual state of the device is compared to sets of contextual state information. The device is unlocked based on the comparison of the first contextual state of device to the sets of contextual state information when the device is in a secure location with a nearby authorized user.