Smart Card Module With Dynamic Permanent Verification Code Display

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Solution Overview

Problem

Conventional smart cards with static verification codes are vulnerable to fraudulent activities as the code can be easily obtained by third parties, leading to unauthorized transactions, and existing solutions for dynamic verification codes often require a permanently visible display even when the energy supply is off.

Innovation Solution

Integration of a smart card module with a dynamic verification code display unit and a biometric sensor, where the verification code display unit is configured as a dynamic permanent display that can change over time or upon events, and is electrically or inductively coupled to the contact region and sensor, allowing for secure and efficient integration into the card body without additional connecting elements.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a static verification code is printed on the smart card, then the card can be manufactured simply and cost-effectively, but the security level is reduced as third parties can easily obtain the code

Engineering Contradiction:
Improvesecurity levelVSAvoidcard structure
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent combines multiple functions (contactless communication, dynamic verification code display, and biometric sensing) into a single integrated smart card module. This merging approach increases security by incorporating dynamic elements while managing complexity through integration rather than adding separate components.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The verification code is transformed from a static printed value to a dynamic display element that can change over time or in response to events. This dynamic approach enhances security by preventing code interception, as the code exists only temporarily in display form rather than being permanently printed on the card.

Inventive Principle:
Principle #15Dynamics

2Reliability

If a dynamic verification code display unit is integrated into the credit card, then security is improved, but the display must remain permanently visible even when energy supply is switched off

Engineering Contradiction:
Improvesecurity levelVSAvoidenergy consumption
Core Design Contradiction:
ReliabilityVSUse of energy by moving object

Solution Approach 1:

The display unit operates periodically rather than continuously, activating only when verification is needed and remaining invisible or blank when energy is not supplied. This periodic operation pattern maintains security functionality while significantly reducing energy consumption compared to permanent visibility.

Inventive Principle:
Principle #19Periodic action

Solution Approach 2:

The display unit automatically activates and deactivates based on its operational needs, serving itself by being visible only during verification events and remaining invisible during non-operational periods, thereby eliminating the need for continuous energy supply.

Inventive Principle:
Principle #25Self-service

3Productivity

If multiple components (contact region, display unit, biometric sensor) are integrated into a single smart card module, then manufacturing efficiency is improved, but the arrangement complexity increases

Engineering Contradiction:
Improvemanufacturing efficiencyVSAvoidmodule arrangement
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

Multiple functional components are merged into a single integrated module that can be inserted as one unit, simplifying the manufacturing process and assembly steps while maintaining all required functions within the consolidated structure.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The smart card module is designed as a universal platform that incorporates multiple functions (contactless communication, dynamic display, biometric sensing) within a single standardized form factor, allowing one module design to fulfill multiple security and operational requirements without requiring separate components.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Data Source

PatentUS20230289554A1Smart card module, smart card module arrangement and smart card
Publication Date: 2023.09.14 INFINEON TECHNOLOGIES AG
  • US20230289554A1 patent drawing
  • US20230289554A1 patent drawing
  • US20230289554A1 patent drawing

AI summary

A smart card module including a contact region with at least one electrical smart card module contact, and a verification code display unit configured to display a verification code, the verification code display unit being arranged in the smart card module, wherein the verification code display unit is configured as a dynamic permanent display unit, the controlled display of which continues to be displayed after deenergization of the verification code display unit.