Fingerprint Identification System Using Voltage Graph Characteristic Points
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Solution Overview
Problem
Existing fingerprint authentication methods for electronic devices are inconvenient and time-consuming, as they require extensive analysis of user fingerprints for validation.
Innovation Solution
A fingerprint identification system that uses a touch panel to generate voltage graphs, detects characteristic points, computes and stores fingerprint characteristic values, and validates user access by comparing these values against stored authorized data, allowing for efficient and secure access control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional fingerprint analysis methods are used for access control, then security reliability is improved, but authentication time and operational complexity increase
Solution Approach 1:
The patent extracts only the essential characteristic points from the complete fingerprint image for authentication. Instead of analyzing the entire fingerprint, the system identifies and compares specific key points (such as ridges, valleys, and their positions) to determine identity, significantly reducing processing time while maintaining security
Solution Approach 2:
The fingerprint is segmented into discrete characteristic points and features. The system divides the complex fingerprint pattern into identifiable elements (ridges, valleys, their coordinates and orientations) that can be independently extracted, stored, and compared, enabling faster authentication without sacrificing recognition accuracy
2Measurement precision
If comprehensive fingerprint analysis is performed, then identification accuracy is improved, but processing complexity and time consumption increase
Solution Approach 1:
The system extracts only the necessary characteristic points from the fingerprint image for authentication purposes. By identifying and storing only key features (ridges, valleys, their positions and orientations) rather than analyzing every detail of the fingerprint pattern, the system achieves accurate identification with reduced processing complexity
Solution Approach 2:
The system performs preliminary extraction and storage of fingerprint characteristic points during the enrollment phase. These pre-processed characteristic data are stored in a database, allowing for rapid comparison during authentication without re-analyzing the complete fingerprint image, thus reducing real-time processing complexity
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
This method provides a fast and secure way to authenticate users by efficiently matching fingerprint patterns, reducing the time and complexity associated with traditional fingerprint analysis.
Implementation Method 1
The touch panel 12 is configured for generating voltage graphs after a user presses the touch panel 12 using one or more fingers of the user. When the electronic device 1 is powered on, a voltage is applied to the touch panel 12. The voltage of the touch panel 12 changes after the users presses the touch panel 12
Data Source
AI summary
An electronic device having a fingerprint identification system obtains a voltage graph of a fingerprint from pressed signals of a user logging in via a touch panel of the electronic device. The system detects fingerprint characteristic points in the voltage graph of the fingerprint of the user logging in, and computes fingerprint characteristic values according to the detected fingerprint characteristic points. The system further determines if the computed fingerprint characteristic values match original fingerprint characteristic values an authorized user, and validates the identification of the user logging in.