Capacitive Touch Screen Signet Authentication System
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Solution Overview
Problem
Touch screens in computer systems lack effective methods for implementing different authorization levels, leading to security issues and misuse, as login codes can be easily compromised, and physical keys are expensive and not always necessary.
Innovation Solution
A signet-based system where a touch signal representing a specific signet pattern is generated and recognized, allowing the computer system to perform actions associated with the recognized pattern, enabling secure access and authorization levels without the need for physical keys.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If login codes are used for authorization, then ease of operation is improved, but security deteriorates because login codes can be easily stolen or compromised
Solution Approach 1:
The patent uses a fingerprint template (a digital copy or representation of the biometric data) instead of the actual fingerprint. The touch screen captures the fingerprint and compares it against stored templates, allowing secure authentication without exposing the actual biometric data. This resolves the contradiction by providing ease of operation through simple touch contact while maintaining security through template-based verification.
Solution Approach 2:
The patent replaces traditional mechanical or code-based authentication systems (physical keys, login codes, security tokens) with a biometric authentication system using the touch screen's capacitive sensing capability. The touch screen itself serves as both the display and the fingerprint sensor, eliminating the need for separate physical authentication devices while providing superior security.
2Reliability
If physical keys are used for security, then security is improved, but device complexity and cost worsen due to expensive keys and required locking mechanisms
Solution Approach 1:
The patent merges the display function and the authentication function into a single integrated touch screen component. The touch screen simultaneously displays information and captures fingerprint data through its capacitive sensing capability. This eliminates the need for separate physical keys and locking mechanisms, reducing device complexity while maintaining security through biometric authentication.
Solution Approach 2:
The touch screen serves multiple functions: it acts as the display interface for user interaction, the authentication sensor for fingerprint capture, and the processing unit for comparing fingerprints against stored templates. This multi-functionality eliminates the need for dedicated security hardware, reducing overall system complexity and cost while providing robust security.
3Ease of operation
If traditional touch screen contact recognition is used, then ease of operation is improved, but ability to detect specific users deteriorates as it cannot distinguish between different users
Solution Approach 1:
The patent segments the touch contact into multiple data points by analyzing the capacitive coupling at different locations and intensities across the touch screen surface. Instead of treating the touch as a single contact event, the system captures a distribution of contact points that form a unique pattern for each user's fingerprint, enabling precise user identification while maintaining ease of operation through simple touch contact.
Data Source
AI summary
A system and method for recognizing a signet and for performing an action associated with the signet, wherein the signet is an inanimate object. In one embodiment, the method includes generating a touch signal with a signet, the touch signal representing a particular signet pattern, recognizing the particular signet pattern, and performing an action associated with the particular signet pattern.