Capacitive Touch Sensor Biometric Authentication
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Solution Overview
Problem
Conventional authentication methods are burdensome and inadequate for security, as they often require frequent PIN entry and are vulnerable to hacking, lacking robustness and ease of use.
Innovation Solution
A target authentication device with electrodes that detect unique electrical signals associated with a user, using an authentication receiver module to verify these signals against predetermined criteria for secure access.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional PIN authentication is used, then device access control is achieved, but user convenience deteriorates due to frequent PIN entry requirements
Solution Approach 1:
The patent replaces the mechanical keyboard input system with a capacitive touch interface that detects electrical signals from the user's body. The target authentication device includes a capacitive touch sensor that detects electrical signals associated with the user, eliminating the need for physical PIN entry while maintaining security through biometric verification.
2Ease of operation
If PIN authentication is used, then basic security is achieved, but security robustness deteriorates due to vulnerability to hacking
Solution Approach 1:
The patent changes the authentication parameter from a user-defined PIN (knowledge factor) to a biometric electrical signal (inherence factor). The system detects unique electrical signals from the user's body through capacitive sensors, making authentication based on inherent physiological characteristics that cannot be easily replicated or hacked, thereby improving security robustness while maintaining simplicity.
3Reliability
If biometric authentication is implemented, then security is enhanced, but device complexity increases due to additional sensors and processing
Solution Approach 1:
The patent implements multi-functionality by using the capacitive touch sensor for both user interface interaction and biometric authentication purposes. The same sensor array that detects touch input also captures electrical signals for authentication, eliminating the need for separate biometric sensors and reducing overall system complexity while enhancing security.
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 approach provides a more convenient and secure authentication method by eliminating the need for frequent PIN entry and enhancing security through biometric verification, reducing the risk of unauthorized access.
Implementation Method 1
at least one electrode is configured to detect an electrical signal associated with a user of the target authentication device
Data Source
AI summary
A target authentication device includes an electrode to detect an electrical signal associated with a user of the device. The electrical signal represents an authentication code for the device. An authentication receiver module is coupled to the electrode. The module receives the electrical signal from the electrode and determines whether the electrical signal matches a predetermined criterion to authenticate the identity of the user based on the electrical signal. An authentication module is also disclosed. The authentication module includes one electrode to couple an electrical signal associated with a user to a user of a target authentication device, the electrical signal represents an authentication code for the device. An authentication transmission module is coupled to the electrode. The authentication transmission module transmits the electrical signal from the electrode. A method of authenticating the identity of a user of a target authentication device also is disclosed.