Mobile Device Accessory Authentication via Unique Identifier Verification

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Solution Overview

Problem

The quality of third-party device accessories for mobile devices cannot be controlled by manufacturers, potentially diminishing the user experience due to inconsistent quality and authenticity.

Innovation Solution

A mobile device system that authenticates device accessories using a unique identifier, communicated via a proximity detector and server verification, ensuring only certified accessories are recognized and enabled for full functionality.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If third party device accessories are allowed for mobile devices, then device compatibility and market availability are improved, but quality control and authenticity assurance deteriorate

Engineering Contradiction:
Improvedevice compatibilityVSAvoidquality control
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The patent introduces an authentication system as an intermediary between the mobile device and accessories. This system uses unique identifiers embedded in accessories and verifies them through authentication modules in the mobile device, acting as a mediator to ensure quality while maintaining compatibility with third-party accessories.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The authentication system implements feedback by verifying unique identifiers of accessories and providing authentication status information back to the mobile device. This feedback mechanism enables the device to recognize and prioritize authenticated accessories, ensuring quality control while allowing market availability.

Inventive Principle:
Principle #23Feedback

2Reliability

If authentication systems are implemented for device accessories, then quality control and authenticity are improved, but device complexity increases

Engineering Contradiction:
Improveauthenticity assuranceVSAvoidsystem complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent extracts the authentication functionality into a separate, dedicated module within the mobile device. By isolating the authentication logic and unique identifier verification processes into distinct components, the system achieves reliability without significantly increasing overall device complexity.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The authentication system uses simplified representations (unique identifiers) of accessories instead of verifying complex physical characteristics. This copying approach allows for efficient authentication while maintaining simplicity, reducing the computational and structural complexity required in the authentication system.

Inventive Principle:
Principle #26Copying

Data Source

PatentEP2469902B1Mobile device for authenticating a device accessory
Publication Date: 2015.12.16 BLACKBERRY LTD
  • EP2469902B1 patent drawingFigure 1
  • EP2469902B1 patent drawingFigure 2
  • EP2469902B1 patent drawingFigure 3

AI summary

A mobile device for authenticating a device accessory is disclosed. The mobile device receives a unique identifier from a device accessory, sends the received unique identifier to a server via a communication network, and receives information from the server relating to the unique identifier.