Storage Device Connection Detection Circuit for Unauthorized Access Prevention
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Solution Overview
Problem
Current storage devices lack the ability to detect disconnections from electronic apparatuses, leading to potential unauthorized access and data protection issues when disconnected from authentic hosts and connected to unauthentic ones.
Innovation Solution
Incorporating a connection detection circuit within the storage device that monitors signal line states to detect disconnections and connections, allowing for data protection measures to be initiated, and recording connection detection logs to enhance data security.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If storage devices do not detect disconnections, then device complexity is reduced, but data protection capability deteriorates
Solution Approach 1:
The storage device autonomously detects disconnections through the connection detection circuit and automatically executes data protection operations without requiring external intervention or complex system coordination, enabling self-protected data handling
Solution Approach 2:
The connection detection function is implemented as a separate, dedicated circuit module that operates independently from the main storage and control functions, allowing data protection capability to be added without significantly increasing overall device complexity
2Reliability
If connection detection is implemented, then data protection capability is improved, but ease of operation deteriorates
Solution Approach 1:
The system automatically detects disconnections and executes protection operations without requiring user awareness or manual intervention, maintaining ease of operation while improving data protection capability
Solution Approach 2:
The connection detection circuit continuously monitors the connection state and provides real-time feedback to the control circuit, enabling automatic response to disconnection events without affecting user operation
Data Source
AI summary
A storage device includes a first memory, a controller circuit configured to control an access to the first memory, a connector connectable to host apparatuses, and a connection detection circuit configured to detect disconnection of the connector from a host apparatus based on a state of a signal line of the connector.