Context-Aware Mobile Authentication Sensor Polling

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Solution Overview

Problem

Current mobile device authentication methods are discrete and power-intensive, lacking continuous authentication techniques that balance security, power usage, and convenience effectively.

Innovation Solution

A mobile device system that employs low-power and high-power sensors in conjunction with a processor to dynamically adjust polling rates based on environmental changes, using contextual data for passive authentication without explicit user input, optimizing security, power, and convenience.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If high-power sensors are continuously engaged for authentication, then security is improved, but power consumption increases

Engineering Contradiction:
ImprovesecurityVSAvoidpower consumption
Core Design Contradiction:
ReliabilityVSUse of energy by moving object

Solution Approach 1:

The system dynamically adjusts the polling rate of sensors based on environmental changes and authentication needs. Low-power sensors operate continuously at a base polling rate, while high-power sensors are engaged only when environmental changes indicate potential authentication events, creating a dynamic power-security balance

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system uses periodic polling of low-power sensors to monitor environmental changes, and only periodically engages high-power sensors when triggered by significant environmental changes. This periodic engagement of high-power sensors reduces overall power consumption while maintaining security

Inventive Principle:
Principle #19Periodic action

2Use of energy by moving object

If discrete authentication methods are used, then power consumption is reduced, but continuous authentication capability is lost

Engineering Contradiction:
Improvepower consumptionVSAvoidcontinuous authentication capability
Core Design Contradiction:
Use of energy by moving objectVSExtent of automation

Solution Approach 1:

The system performs self-service authentication by automatically detecting environmental changes and triggering authentication protocols without explicit user requests. Low-power sensors continuously monitor the environment and autonomously decide when to engage high-power sensors for authentication, enabling continuous authentication with minimal user intervention

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system uses feedback from low-power sensors monitoring environmental changes to dynamically control the engagement of high-power sensors. When environmental changes exceed thresholds, the system feedback-triggers authentication sequences, creating a closed-loop continuous authentication system

Inventive Principle:
Principle #23Feedback

3Measurement precision

If high-power sensors are frequently engaged, then authentication accuracy is improved, but convenience decreases due to power consumption

Engineering Contradiction:
Improveauthentication accuracyVSAvoiduser convenience
Core Design Contradiction:
Measurement precisionVSEase of operation

Solution Approach 1:

The system applies different quality levels of sensing to different situations: low-power sensors provide continuous baseline monitoring, while high-power sensors provide high-precision authentication data only when and where environmental changes indicate authentication events are needed, optimizing both accuracy and convenience

Inventive Principle:
Principle #3Local quality

Data Source

PatentUS10356617B2Mobile device to provide continuous authentication based on contextual awareness
Publication Date: 2019.07.16 QUALCOMM INC
  • US10356617B2 patent drawing
  • US10356617B2 patent drawing
  • US10356617B2 patent drawing

AI summary

Disclosed is a mobile device to authenticate a user. The mobile device may comprise: a first sensor; a second sensor to use more power than the first sensor; and a processor coupled to the first sensor and the second sensor. The processor may be configured to: collect data from the first sensor; determine if an environmental change occurred based on the collected data from the first sensor; engage the second sensor to collect data if the environmental change occurred; and modify a polling rate for the second sensor based on the collected data from the second sensor.