Biometric Smart Card Chip Integration

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Solution Overview

Problem

Existing smart card systems face challenges in secure authentication and payment authorization, particularly in preventing unauthorized use, as they often rely on traditional methods that are vulnerable to misuse.

Innovation Solution

Integration of a biometric sensor, an authentication information processing module, and a security module into a single chip, which controls a fingerprint sensing array, processes fingerprint information, and determines usage approval or disapproval for payment requests, with an active shield for enhanced security.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If biometric authentication is implemented using separate components (sensor, processing module, security module), then authentication functionality can be achieved, but device complexity and security vulnerabilities increase

Engineering Contradiction:

Improveauthentication securityVSAvoidsystem structure

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent combines the biometric sensor, authentication information processing module, and security module into a single integrated chip. This merging of previously separate components reduces system complexity while enhancing security by ensuring that all authentication functions reside within one secure boundary, preventing external interference and reducing attack surfaces.

Inventive Principle:

Principle #5Merging (Combining)

2Reliability

If traditional authentication methods are used, then device simplicity is maintained, but security against unauthorized use is insufficient

Engineering Contradiction:

Improvepayment securityVSAvoidauthentication convenience

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The patent replaces traditional mechanical or simple electronic authentication methods (such as physical card possession or basic passwords) with biometric authentication using fingerprint recognition. This substitution provides stronger security by utilizing unique physiological characteristics while maintaining ease of use through contactless or minimal-contact fingerprint sensing.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

3Adaptability or versatility

If multiple separate modules are used for biometric authentication, then functional flexibility is improved, but manufacturing complexity and cost increase

Engineering Contradiction:

Improveauthentication functionalityVSAvoidchip integration

Core Design Contradiction:

Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

The patent integrates the biometric sensor, authentication information processing module, and security module into a single chip, significantly simplifying the manufacturing process. This consolidation reduces the number of assembly steps, lowers production costs, and improves yield rates while maintaining all necessary authentication functionalities within the unified device.

Inventive Principle:

Principle #5Merging (Combining)

Data Source

PatentUS12045329B2Biometric authentication smart cards

Publication Date: 2024.07.23 SAMSUNG ELECTRONICS CO LTD

AI summary

A smart card is provided. The smart card includes a peripheral circuit configured to control a fingerprint sensing array and generate a raw image, an authentication information processing module configured to process the raw image into fingerprint information for verification, a security module configured to determine whether the fingerprint information for verification matches registered fingerprint information to determine usage approval or disapproval for a payment request, and an active shield overlapping the security module. The peripheral circuit, the authentication information processing module, and the security module are integrated into one chip.