Electronic Device Biometric Authentication for Secure Bluetooth Connection
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Solution Overview
Problem
Existing electronic devices face issues with excessive power consumption and inaccurate distance determination when connecting via Bluetooth, leading to potential unauthorized data transmission.
Innovation Solution
Implementing a biosensor to perform user authentication upon insertion of an external device, using biometric information to control data transmission/reception and prevent unauthorized access.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If Bluetooth connectivity is maintained in an active state, then data transmission capability is preserved, but power consumption increases excessively
Solution Approach 1:
The patent applies dynamics by making the Bluetooth connectivity state changeable rather than fixed. The system dynamically switches between active and inactive states based on authentication results, allowing the device to adapt its power consumption level to current security requirements while maintaining data transmission capability when needed.
Solution Approach 2:
The patent changes the operational parameter of Bluetooth connectivity from a constant active state to a variable state controlled by authentication status. When authentication succeeds, Bluetooth remains active for data transmission; when authentication fails or is not performed, Bluetooth is deactivated to reduce power consumption, thus resolving the contradiction between maintaining capability and reducing energy use.
2Ease of operation
If Bluetooth is used for connection, then wireless communication is enabled, but accurate distance determination becomes difficult due to signal strength variations
Solution Approach 1:
The patent introduces an intermediary authentication mechanism (biosensor verification) between the device and the user. Instead of relying directly on Bluetooth signal strength for distance determination, the system uses the biosensor as an intermediary to verify user identity, thereby indirectly ensuring that only authorized users can establish connections, which compensates for the inability to accurately determine distance through signal strength alone.
3Ease of operation
If Bluetooth connection is allowed without authentication, then ease of connection is maintained, but unauthorized data transmission risk increases
Solution Approach 1:
The patent applies preliminary action by performing authentication through the biosensor before allowing Bluetooth data transmission. The authentication process is executed in advance of the actual data transfer operation, ensuring that only verified users can establish secure connections. This preliminary verification step prevents unauthorized data transmission while maintaining ease of operation for legitimate users.
Solution Approach 2:
The system implements feedback by using the biosensor to continuously verify user identity and provide authentication status information. The Bluetooth connection state is adjusted based on this feedback from the authentication process, creating a closed-loop control system that prevents unauthorized access while maintaining convenient operation for authenticated users.
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
Reduces power consumption by maintaining Bluetooth connectivity only when authenticated, ensuring secure data transmission and preventing unauthorized access.
Implementation Method 1
receive biometric information using the sensor after detecting the insertion of the external device
Data Source
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AI summary
A method and electronic device are disclosed herein. The electronic device includes at least one connector, at least one switch electrically connected to the at least one connector, a sensor, a memory, and a processor electrically connected to the at least one connector, the at least one switch, the sensor, and the memory. The processor implements the method, including detecting insertion of an external device into the at least one connector based on an electrical signal input through the at least one connector, receiving biometric information using the sensor after detecting the insertion of the external device, and controlling a switch electrically connected to the connector to be connected to the connector into which the external device is inserted when the received biometric information matches biometric information stored in the memory.