Biometric Authentication Filtering by Base Station Coverage
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Solution Overview
Problem
Biometric authentication systems are slow and unreliable when dealing with a large number of users, leading to increased verification times and false positives, making them unsuitable for applications like mass transit or financial transactions.
Innovation Solution
The method filters biometric data by using a base station's coverage zone to restrict the number of comparisons, leveraging mobile device connections to narrow down the set of reference biometric data, thereby accelerating authentication and reducing false positives.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the number of users referenced in the authentication system is increased, then the system can serve more users, but the verification time increases and the system becomes slower
Solution Approach 1:
The patent divides the set of reference biometric data into multiple subsets based on base station coverage zones. Instead of comparing against all users in the system, the system now compares only against users associated with the specific base station where the transactional terminal is located. This segmentation dramatically reduces the number of comparisons needed while maintaining security.
2Adaptability or versatility
If the number of users referenced in the authentication system is increased, then the system can serve more users, but the probability of false positives increases
Solution Approach 1:
By segmenting the user database into base station-specific subsets, the system reduces the search space for biometric comparisons. This limitation to local users within the same base station coverage zone significantly decreases the probability of false positives while still allowing the system to serve a large total number of users across multiple base stations.
3Reliability
If biometric data is compared with all pieces of reference biometric data, then comprehensive authentication is achieved, but the authentication process becomes too slow for practical applications
Solution Approach 1:
The patent applies local quality by restricting the biometric comparison to users associated with the specific base station coverage zone where the transactional terminal is located. This localized approach maintains adequate authentication reliability for the immediate context while dramatically reducing processing time compared to system-wide comparisons.
Data Source
AI summary
A method and apparatus are provided for biometric authentication of a user to be authenticated, from among a plurality of users, with an authentication system storing a set of pieces of reference biometric data, each associated with one of the users. The method includes providing, by the user to be authenticated, a piece of biometric authentication data by a device for obtaining biometric data from a transactional terminal. A subset of the set of pieces of reference biometric data stored by the authentication system is searched for a piece of reference biometric data corresponding to the user to be authenticated as a function of the piece of biometric authentication data. The step of searching includes filtering the pieces of reference biometric data as a function of: a base station of a mobile communications network; and a set of mobile devices for which a connection indicator is activated for the base station. The transactional terminal is substantially near a zone of coverage of the base station.