SIM Card Locking Mechanism for Anti-Theft Tracking

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Solution Overview

Problem

Current tracking systems for lost or stolen portable electronic devices are ineffective when the device is powered off or has its subscriber identification module removed, as thieves can easily switch out SIM cards, rendering tracking impossible.

Innovation Solution

Integration of software and hardware locking mechanisms that require a user-defined identification sequence for the SIM card or credentialing device to be inserted or removed, preventing unauthorized access and ensuring the module remains within the device unless the correct sequence is entered.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If tracking systems are implemented for lost or stolen devices, then device tracking capability is improved, but thieves can remove the SIM card to prevent identification and rendering tracking ineffective

Engineering Contradiction:

Improvetracking capabilityVSAvoidSIM card removal by thieves

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The system performs preliminary actions by locking the SIM card receiver and requiring an identification sequence before allowing SIM card insertion or removal. This preventive measure ensures that even if a device is stolen, the SIM card cannot be removed to disable tracking, thus maintaining reliable tracking capability throughout the device's operation

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

An intermediary locking mechanism is introduced between the SIM card and the receiver. The locking mechanism acts as a mediator that controls access to the SIM card receiver, requiring authentication (identification sequence) before allowing the SIM card to be inserted or removed, thereby preventing thieves from disabling tracking by removing the SIM card

Inventive Principle:

Principle #24Intermediary (Mediator)

2Ease of operation

If SIM card access is unrestricted for ease of operation, then ease of operation is improved, but device security and tracking reliability deteriorate when device is lost or stolen

Engineering Contradiction:

ImproveSIM card insertion/removalVSAvoiddevice security

Core Design Contradiction:

Ease of operationVSReliability

Solution Approach 1:

The system implements self-service functionality where the user themselves must provide the identification sequence to access the SIM card receiver. This self-authentication approach maintains ease of operation for legitimate users while simultaneously enhancing device security, as only the authorized user can remove or insert SIM cards

Inventive Principle:

Principle #25Self-service

Data Source

PatentUS9363673B2Subscriber identity module control in a portable communication device

Publication Date: 2016.06.07 GOOGLE TECHNOLOGY HOLDINGS LLC

AI summary

A communication device includes a communication circuit, one or more processors operable with the communication circuit, one or more memory devices, operable with the one or more processors, a user interface, operable with the one or more processors, and a receiver to receive a subscriber identification module to enable at least some communication by the communication circuit. A locking mechanism, operable with the receiver and responsive to the one or more processors, can selectively physically retain the subscriber identity module within the receiver.