Electromechanical USB Port Lock with Coded Electronic Key

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Solution Overview

Problem

Existing USB port locking devices lack secure and removable solutions, as they can be easily bypassed using unauthorized keys or tweezers, and do not provide adequate protection against data theft and virus transmission via USB drives.

Innovation Solution

A USB Port Lock and Electronic Key Device Programming System that combines a mechanically locked USB dongle with an electronic key, using an electromagnet to unlock the dongle only with a correctly coded electrical signal, preventing unauthorized access and allowing secure removal.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a mechanical USB port lock is used to block access, then USB port security is improved, but the locking device can be easily bypassed using unauthorized keys or tweezers

Engineering Contradiction:
ImproveUSB port securityVSAvoidunauthorized access
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent replaces the purely mechanical locking system with an electromechanical system that uses an electromagnet to control the locking mechanism. The electromagnet receives electrical signals from authorized electronic keys, transforming the system from mechanical-only to electromechanical, thereby preventing bypass with simple mechanical tools like tweezers or unauthorized keys.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent introduces an electronic key as an intermediary between the user and the locking mechanism. The electronic key transmits coded electrical signals to the electromagnet, serving as a mediator that authenticates users before allowing the locking mechanism to disengage, thus preventing unauthorized access while maintaining secure operation.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If a permanent USB port plug is inserted to block access, then USB port protection is improved, but access to the port is permanently lost

Engineering Contradiction:
ImproveUSB port protectionVSAvoidport accessibility
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The patent transforms the static, permanent plug into a dynamic, controllable locking mechanism. The electromagnet enables the locking device to transition between locked and unlocked states based on received electrical signals, allowing the port to be securely blocked when needed while remaining accessible when authorized, thus resolving the contradiction between protection and accessibility.

Inventive Principle:
Principle #15Dynamics

3Ease of operation

If a mechanical key system is used to unlock the plug, then removal capability is improved, but the system can be easily compromised by creating similar keys

Engineering Contradiction:
Improveremoval capabilityVSAvoidsecurity against unauthorized keys
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The patent replaces the mechanical key system with an electromechanical system using coded electrical signals. Instead of relying on physical key shapes that can be replicated, the system uses electronic codes transmitted via electromagnet, making it significantly more difficult to compromise while maintaining easy authorized removal capability.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

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

Provides enhanced security by requiring a specifically coded electronic key for unlocking, preventing data theft and virus transmission, and allowing secure removal of the locking dongle, thus offering greater protection for USB ports in secure environments.

Implementation Method 1

The electromagnet unlocks the USB dongle in response to an electrical signal generated by an electronic key.

Methodology Applied
Scientific EffectElectromagnet: Electromagnet

Data Source

PatentUS10146708B2USB port lock and electronic key device programming system
Publication Date: 2018.12.04 TERRALINK MARKETING SERVICES CORP
  • US10146708B2 patent drawing
  • US10146708B2 patent drawing
  • US10146708B2 patent drawing

AI summary

The present invention relates to a programming system for a USB locking dongle that locks into a USB computer port. The programming system comprises programming a specific key device to unlock a specific USB locking dongle. The USB locking dongle is unlocked from the USB computer port independently of any input from the host computer.