Fingerprint Recognition Smart Card Authentication Mechanism

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Conventional electronic smart cards lack mechanisms for recognizing cardholders, leading to security breaches and inconvenience in transactions, as they do not verify the authenticity of users before allowing transactions.

Innovation Solution

A fingerprint recognition smart card is developed, comprising a card body, a transaction processing unit, a switch unit, and a fingerprint recognition unit, where the fingerprint recognition unit analyzes the cardholder's fingerprint data to determine whether to enable or disable the transaction processing unit, enhancing transaction safety and convenience.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional smart cards use password-based authentication, then the transaction process is simple, but security is compromised due to theft and fraud

Engineering Contradiction:

Improvetransaction securityVSAvoidcard structure

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent combines the fingerprint recognition unit with the smart card transaction processing unit into an integrated system. The fingerprint sensor, processing circuitry, and transaction processing are merged into a single card device, enabling biometric authentication without requiring separate authentication devices or systems.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The fingerprint recognition unit serves as an intermediary between the user and the transaction processing unit. Instead of directly using passwords or PINs, the system mediates authentication through fingerprint biometric data, providing a more secure intermediate verification layer.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Reliability

If smart cards lack cardholder recognition mechanisms, then the card structure remains simple, but vulnerability to theft and fraud increases

Engineering Contradiction:

Improvecardholder verificationVSAvoidauthentication mechanism

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The fingerprint recognition smart card performs self-authentication by capturing and verifying the cardholder's fingerprint data internally. The card automatically compares the captured fingerprint with stored biometric templates and makes authentication decisions without requiring external verification systems or manual password entry.

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The patent replaces traditional mechanical/password-based authentication systems with biometric fingerprint recognition. Instead of relying on users to remember or protect passwords, the system uses unique physiological fingerprint patterns that are difficult to replicate or steal.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

3Loss of information

If smart cards do not display transaction status, then the card design remains simple, but cardholders cannot verify transaction completion

Engineering Contradiction:

Improvetransaction status informationVSAvoidstatus display system

Core Design Contradiction:

Loss of informationVSDevice complexity

Solution Approach 1:

The patent incorporates an LED indicator that changes color or illuminates to display transaction status information. The LED provides visual feedback to cardholders about whether transactions are successfully completed, approved, or rejected, enabling immediate status verification without complex display systems.

Inventive Principle:

Principle #32Color changes

4Reliability

If conventional cards require password entry, then authentication can be performed, but users may forget or have passwords stolen

Engineering Contradiction:

Improveauthentication securityVSAvoidauthentication convenience

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The patent replaces password-based authentication with fingerprint biometric recognition. Users simply place their finger on the sensor, and the system automatically captures and verifies the fingerprint pattern, eliminating the need to remember, type, or protect passwords while providing more secure authentication.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Data Source

PatentUS10402712B1Fingerprint recognition smart card

Publication Date: 2019.09.03 BEAUTIFUL CARD

AI summary

A fingerprint recognition smart card has a card body, a transaction processing unit, a switch unit, and a fingerprint recognition unit. The transaction processing unit is disposed at the card body. The switch unit is disposed at the card body and circuit-connected to the transaction processing unit. The fingerprint recognition unit is disposed at the card body and circuit-connected to the transaction processing unit and the switch unit. Therefore, after the transaction processing unit has received external power, the fingerprint recognition unit receives and analyzes a cardholder's fingerprint data such that, depending on an analysis result of the fingerprint data, the switch unit starts the transaction processing unit for conducting a transaction with a reading apparatus or shuts down the transaction processing unit to preclude any transaction. Therefore, the fingerprint recognition smart card enhances transaction safety and convenience.