Fingerprint Sensor Touch Pattern Authentication
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Solution Overview
Problem
Existing electronic devices face security and confidentiality issues due to the vulnerability of touch screen-based security code input interfaces, which can be hacked by observing users enter their security codes.
Innovation Solution
A detection system and method utilizing a fingerprint sensor to detect both finger touch operations and fingerprints, providing two-step user authentication through the same sensor, enhancing security and confidentiality by integrating the fingerprint sensor into a function key like the home button, and using a processing device and memory device to compare touch patterns with registered data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a touch screen-based security code input interface is used, then ease of operation is improved, but security is worsened due to vulnerability to hacking by observation
Solution Approach 1:
The patent combines the fingerprint sensor with the touch screen to create an integrated authentication system. The fingerprint sensor is positioned beneath the touch screen surface, allowing both touch operations and fingerprint detection to occur through the same interface, merging input and authentication functions into a single component.
Solution Approach 2:
The fingerprint sensor serves multiple functions: it detects fingerprint patterns for authentication, detects touch operations for input, and provides both visual and tactile feedback. This multi-functionality eliminates the need for separate components for different authentication methods.
2Device complexity
If a fingerprint sensor is integrated into a function key, then device complexity is reduced, but manufacturing precision requirements increase
Solution Approach 1:
The fingerprint sensor is nested within the function key structure, with the sensor array positioned beneath the touch-sensitive surface. This nesting allows the fingerprint sensor to be integrated into existing keyboard or function key layouts without adding separate external components.
Solution Approach 2:
The function key is transformed into a multi-functional component that can detect both standard key presses and fingerprint patterns. The same physical key serves as both a regular input device and a biometric authentication sensor, reducing overall device complexity.
Data Source
AI summary
The present invention discloses a method of finger touch authentication through a fingerprint sensor. The method includes obtaining a plurality of touch operations through the fingerprint sensor, detecting a pattern of the plurality of touch operations; comparing the pattern with a registered pattern to generate a comparison result, and authenticating the plurality of touch operations on the basis of the comparison result, wherein the pattern indicates at least one feature, and the fingerprint sensor is capable of authenticating a fingerprint of a user after or before the finger touch authentication.