Biometric Authentication Controller with Dynamic Comparison Group
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Solution Overview
Problem
Biometric authentication in electronic devices becomes increasingly time-consuming as the number of biometric information pieces in the comparison group grows, posing challenges in high-speed user authentication, especially in busy environments like airport gates or payment terminals.
Innovation Solution
An electronic device with a terminal unit for detecting biometric information and an input unit for personal identification numbers, where the controller registers and selects relevant biometric authentication information to form a comparison group for user authentication, reducing the time taken by limiting the number of biometric information pieces compared during authentication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the number of biometric information pieces in the comparison group is increased to improve security and reduce falsification risk, then authentication reliability is improved, but authentication time increases
Solution Approach 1:
The patent segments the authentication process into two distinct phases: registration phase where multiple biometric information pieces are collected and stored, and authentication phase where a limited comparison group is used. This segmentation allows the system to maintain high reliability through comprehensive biometric data collection while achieving fast authentication by comparing against a pre-selected, limited comparison group rather than all stored biometric data.
Solution Approach 2:
The system performs preliminary action by pre-selecting and storing a comparison group of biometric information during the registration phase. This comparison group is prepared in advance and stored for quick retrieval during authentication, eliminating the need to process and compare against all possible biometric data during the actual authentication event, thus reducing authentication time while maintaining security.
2Reliability
If multiple types of biometric information are collected during registration to enhance security, then authentication reliability is improved, but device complexity increases
Solution Approach 1:
The controller serves multiple functions: it manages biometric information collection, selects and stores comparison groups, retrieves appropriate comparison data during authentication, and performs the actual comparison operations. This multi-functionality consolidates what could be separate complex components into a single controller, managing system complexity while enabling comprehensive multi-modal biometric authentication for enhanced reliability.
Data Source
AI summary
The present disclosure relates to an electronic device that is capable of multimodal biometric authentication and a method of controlling the electronic device.