Fingerprint Authentication Feedback Lighting for Read Completion
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Solution Overview
Problem
Existing biometric authentication systems lack feedback on the completion of fingerprint verification, leading to uncertainty in when to remove the finger, thereby increasing operational burden on users.
Innovation Solution
A biometric information authenticating device with an illumination unit that provides feedback through a combination of light patterns indicating the completion of biometric information reading, such as changing illumination patterns based on successful or unsuccessful authentication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a biometric information authenticating device is integrated into a terminal device, then authentication function is provided, but device complexity and management difficulty increase
Solution Approach 1:
The authentication system is divided into separate functional modules: the terminal device contains the user interface and communication modules, while the authentication function is provided by a separate authentication server or dedicated authentication module. This segmentation allows the terminal to remain simple while still providing comprehensive authentication capabilities through modular integration.
2Loss of time
If biometric information is stored in the terminal device, then authentication speed is improved, but security risk increases due to device loss or theft
Solution Approach 1:
An authentication server or secure remote server acts as an intermediary between the terminal device and the biometric database. The terminal communicates authentication requests to this intermediary, which then verifies biometric data without requiring the terminal to store sensitive biometric information locally. This mediator approach enables fast authentication while maintaining security by preventing local storage of sensitive data.
3Reliability
If biometric information is stored externally, then security is improved, but authentication process complexity increases
Solution Approach 1:
The authentication server implements self-service functionality by automatically receiving biometric data from the terminal, performing verification against stored templates, and returning authentication results. This automated self-service process eliminates the need for complex manual authentication procedures while maintaining secure external storage of biometric information.
4Measurement precision
If fingerprint sensor resolution is increased to capture minute details, then authentication accuracy is improved, but sensor size and device complexity increase
Solution Approach 1:
Instead of increasing sensor resolution in the traditional spatial dimension, the system captures three-dimensional topographical information of the fingerprint using optical or capacitive sensing techniques. This dimensional approach allows accurate fingerprint capture with smaller sensor footprints by utilizing depth or height information rather than relying solely on high-resolution planar imaging.
Data Source
Figure 1A~1B
Figure 2A~2B
Figure 3
AI summary
A start switch device 1 includes: a biometric information sensor 2 for detecting contact of an operating finger 9 with respect to a reading surface 20, and for reading biometric information 23 of the operating finger 9; an illuminating unit 4 having at least one light source; and a control unit 6 which indicates that reading of the biometric information 23 is complete, by means of an illumination pattern obtained by combining lighting and extinguishing of the at least one light source.