Voice Activated Smart Card On-Chip Biometric Authentication
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Solution Overview
Problem
Smart cards face security vulnerabilities due to the need for external authentication processes, where user information travels through unsecured channels, increasing the risk of interception and unauthorized use.
Innovation Solution
Integration of a biometric voice sensor and signal processing circuit within the smart card, enabling on-chip voice authentication, identification, and command execution, using piezoelectric or capacitive pressure sensing mechanisms to analyze unique voice characteristics for secure authentication and encryption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If external authentication processes are used with smart cards, then the card can perform basic identification functions, but user information travels through unsecured channels increasing the risk of interception and unauthorized use
Solution Approach 1:
The patent combines the voice sensor, signal processing circuit, and authentication logic into an integrated on-chip system within the smart card. This merging of components eliminates the need for external authentication devices and unsecured communication channels, as all authentication processing occurs securely within the card itself.
Solution Approach 2:
The patent introduces a voice-based biometric authentication mechanism as an intermediary between the user and the authentication system. Instead of transmitting sensitive user information externally, the voice sensor captures unique vocal characteristics that are processed on-chip, serving as a secure mediator that eliminates the need for vulnerable external communication channels.
2Reliability
If on-chip voice authentication is implemented, then security is enhanced by keeping authentication data on the card, but the device complexity increases due to additional sensors and processing circuits
Solution Approach 1:
The smart card performs self-service authentication by incorporating all necessary components (voice sensor, signal processing circuit, and authentication logic) directly on the card chip. The card autonomously captures, processes, and validates voice biometrics without requiring external authentication devices, thereby enhancing security while managing complexity through integration.
Solution Approach 2:
The patent replaces traditional mechanical or external electronic authentication systems with an integrated on-chip voice recognition system. By substituting external hardware and unsecured communication protocols with embedded biometric processing, the system enhances security while consolidating complexity within the card's integrated circuit.
3Device complexity
If traditional authentication methods are used, then the system is simpler to implement, but user information must travel externally creating security vulnerabilities
Solution Approach 1:
The patent extracts the authentication processing function from external systems and embeds it directly within the smart card chip. By taking out the vulnerable external communication环节 and relocating authentication logic on-chip, the system eliminates interception risks while maintaining implementation feasibility through integrated circuit technology.
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 solution reduces the risk of unauthorized use by performing authentication and identification on-chip, enhancing security and ease of use while maintaining cost-effectiveness through standard integrated circuit processing techniques.
Implementation Method 1
using piezoelectric or capacitive pressure sensing mechanisms to analyze unique voice characteristics
Implementation Method 2
using piezoelectric or capacitive pressure sensing mechanisms to analyze unique voice characteristics
Data Source
AI summary
A portable device including a biometric voice sensor configured to detect voice information and to take an action in response to speech spoken into the voice sensor. The device also includes a voice processor configured to process the voice sensor signal characteristics. The portable device may encrypt the detected signal and may compare the detected signal characteristics with voice characteristics that are stored in a memory of the portable device for applications such as voice enabled authentication, identification, command execution, encryption, and free speech recognition. The voice sensor may include a thin membrane portion that detects pressure waves caused by human speech. The portable device may be a contact-type smart card, a contactless smart card, or a hybrid smart card with contact and contactless interfaces. The device may be powered by an internal battery or by a host via contacts or by a power signal making use of the antenna in a contactless implementation.