Fingerprint Authentication Storage Segmentation for Electronic Devices
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Solution Overview
Problem
Fingerprint authentication systems in electronic devices often fail to recognize user fingerprints due to issues related to posture, direction, or number during initial registration, leading to low authentication success rates.
Innovation Solution
An electronic device and method that temporarily stores fingerprint information when initial authentication fails to meet a predetermined threshold, allowing for future comparison and improved authentication success by obtaining and comparing subsequent fingerprint inputs to enhance matching accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If fingerprint information is strictly compared with previously stored information during authentication, then security is maintained, but authentication success rate decreases due to posture, direction, or registration number issues
Solution Approach 1:
The patent segments fingerprint information storage into multiple references (first reference, second reference, etc.) where each reference can store different fingerprint data obtained under different conditions (postures, directions, registration attempts). This segmentation allows the system to compare input fingerprints against multiple stored references, thereby improving authentication success rate without requiring a completely complex redesign of the authentication logic.
Solution Approach 2:
The patent performs preliminary action by storing multiple fingerprint references in advance during the registration phase. Instead of relying on a single stored fingerprint, the system pre-collects and stores multiple fingerprint samples that may vary in posture, direction, or registration number. This preliminary storage of diverse fingerprint data enables more flexible and successful authentication later.
2Reliability
If multiple fingerprint references are stored to improve authentication success rate, then reliability increases, but information storage requirements increase
Solution Approach 1:
The patent applies partial action by storing a limited number of fingerprint references (specifically mentioning first reference, second reference, and potentially a third reference) rather than storing all possible fingerprint variations. This partial storage approach provides sufficient improvement in authentication success rate while avoiding excessive storage requirements. The system stores enough references to handle common variations in posture and direction without accumulating unnecessary data.
Data Source
AI summary
An electronic device is provided. The electronic device includes a memory storing first authenticated fingerprint information, and a processor configured to obtain first fingerprint information corresponding to a first input, compare the first fingerprint information with the first authenticated fingerprint information during a first user authentication, perform a designated function when the first authenticated fingerprint information belongs to a first reference, temporarily store the first fingerprint information when the first authenticated fingerprint information belongs to a second reference, obtain second fingerprint information corresponding to a second input during a second user authentication, compare the second fingerprint information with the first authenticated fingerprint information during the second user authentication when the second input satisfies a designated reference in relation to the first input, store the temporarily stored first fingerprint information as second authenticated fingerprint information when the second authenticated fingerprint information belongs to the first reference, and perform the designated function.