Wearable Authentication via UWB Position and Motion Detection

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Solution Overview

Problem

Existing user authentication methods in digital systems, such as passwords, biometrics, and wearable technologies, face challenges in convenience, reliability, and security, particularly in situations where traditional methods fail or are insufficient for sensitive applications.

Innovation Solution

A computing device and method that utilize wireless communications with a wearable device to determine its position, direction of motion, and authentication status, employing Ultra-Wideband (UWB) signals and Bluetooth Low-Energy signals for secure and efficient access control.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional authentication methods (passwords, biometrics) are used, then user identification can be achieved, but convenience and reliability deteriorate in situations where hands are occupied or lighting conditions are unsuitable

Engineering Contradiction:

Improveauthentication reliabilityVSAvoidauthentication convenience

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The patent introduces a wearable device as an intermediary authentication tool that carries the user's authentication credentials. This mediator enables authentication without requiring direct interaction with the device being accessed, solving the problem of hands being occupied. The wearable device transmits authentication data wirelessly to the target device, maintaining reliability while improving convenience.

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent replaces mechanical authentication methods (typing passwords, physical fingerprint scanning) with wireless electromagnetic communication. The wearable device communicates authentication credentials via wireless signals, eliminating the need for manual input or physical contact, thereby improving both convenience and reliability in various environmental conditions.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

2Ease of operation

If wearable technology is used for authentication, then convenience is improved, but security and reliability may be insufficient for sensitive applications

Engineering Contradiction:

Improveauthentication convenienceVSAvoidauthentication security

Core Design Contradiction:

Ease of operationVSReliability

Solution Approach 1:

The patent segments the authentication process into multiple independent verification stages. The wearable device provides one form of authentication, but the system additionally verifies device identity, establishes secure communication channels, and implements mutual authentication protocols. This segmentation ensures that convenience is maintained while security is strengthened through layered verification.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent implements dynamic authentication where the security level and verification methods adapt based on the sensitivity of the application and the context of access. The system can dynamically adjust authentication requirements, implement time-limited credentials, and modify security parameters based on risk assessment, thereby maintaining both convenience and high security for sensitive applications.

Inventive Principle:

Principle #15Dynamics

3Reliability

If multiple authentication factors are added to improve security, then reliability is improved, but device complexity and user burden increase

Engineering Contradiction:

Improveauthentication securityVSAvoidauthentication system complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent merges multiple authentication factors into a single integrated wearable device. The wearable combines biometric data, cryptographic credentials, and device identification into one unified authentication source. This consolidation maintains high security through multiple verification layers while presenting a simple, single-device solution to users, thereby reducing perceived complexity despite enhanced security.

Inventive Principle:

Principle #5Merging (Combining)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

This solution enhances security by adding a layer of verification based on the wearable device's position, motion, and authentication status, providing a convenient, reliable, and secure user authentication process.

Implementation Method 1

The systems exchange data via ultra-wideband signals and may also utilize Bluetooth Low-Energy signals

Methodology Applied

Scientific EffectUltra-Wideband signals: Electromagnetic Induction

Implementation Method 2

The systems exchange data via ultra-wideband signals and may also utilize Bluetooth Low-Energy signals

Methodology Applied

Scientific EffectBluetooth Low-Energy signals: Electromagnetic Induction

Data Source

PatentUS20250111029A1Implementing user authentication with a wearable device

Publication Date: 2025.04.03 MICROSOFT TECHNOLOGY LICENSING LLC

AI summary

A computing device is disclosed that exchanges wireless communications with a wearable device and processes the communications to determine the position and direction of motion of the wearable device, and the authentication status of the wearable device. The device then grants access based on these determinations. The wearable device authenticates a user and communicates with the user computing device to enable determination of its position, motion direction, and authentication status. Also disclosed are methods for user authentication and de-authentication based on user presence and absence.