Programmable Dynamic Magnetic Stripe Card Emulation

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Solution Overview

Problem

Conventional magnetic stripe cards have limitations in terms of security and convenience, as they rely on static digital identifiers, which can be easily copied and require users to carry multiple cards for different applications, posing challenges in design and manufacturing due to the need for embedded electronic circuitry.

Innovation Solution

A programmable dynamic magnetic stripe card with a solenoid coil that can emulate multiple conventional magnetic stripe cards by generating a magnetic field, supported by a microprocessor system and various communication subsystems (EMV, NFC, Bluetooth LE, RFID) to interact with different Point-Of-Sale terminals, and a multi-layered construction to accommodate electronic components within the ISO-compliant form factor.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional magnetic stripe cards use static digital identifiers, then the cards are simple to manufacture, but they are insecure and can be easily copied

Engineering Contradiction:

ImprovesecurityVSAvoidcard structure

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent transforms static magnetic stripe data into dynamic, programmable credentials. The credential card includes a processor and memory that can dynamically generate and update credential data, allowing the same physical card to emulate multiple different credential types (credit cards, ID cards, access cards) by changing the magnetic stripe data in real-time based on program instructions

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The credential card is designed as a universal platform that can perform multiple functions. A single card can be programmed to emulate various credential types including payment cards, identification cards, and access control cards, eliminating the need for users to carry multiple separate cards while maintaining compatibility with existing magnetic stripe readers

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Ease of operation

If users carry multiple plastic credential cards for different applications, then each card serves its specific function, but it reduces convenience and increases the risk of loss

Engineering Contradiction:

ImproveconvenienceVSAvoidnumber of cards

Core Design Contradiction:

Ease of operationVSQuantity of substance

Solution Approach 1:

The patent combines multiple credential functions into a single physical card. The credential card integrates various credential types (payment, identification, access control) that would traditionally require separate cards, allowing users to carry one card instead of multiple cards while maintaining all necessary functions

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The credential card serves as a universal credential platform that can be programmed to perform multiple functions. A single card can emulate credit cards, debit cards, ID cards, and access cards by dynamically generating appropriate magnetic stripe data, eliminating the need to carry multiple specialized cards

Inventive Principle:

Principle #6Universality (Multi-functionality)

3Adaptability or versatility

If modern credential cards include electronic circuitry for EMV, RFID, and NFC, then the cards support multiple communication protocols, but the manufacturing and design complexity increases

Engineering Contradiction:

Improvecommunication protocolsVSAvoidelectronic circuitry

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent extracts the credential generation functionality from complex electronic circuitry and implements it through a programmable processor and memory system. This approach allows the credential card to support multiple communication protocols (magnetic stripe, EMV, RFID, NFC) through software programming rather than requiring separate hardware circuits for each protocol, reducing manufacturing complexity

Inventive Principle:

Principle #2Taking out (Extraction)

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

Enables a single card to emulate multiple conventional magnetic stripe cards, enhancing security and convenience by dynamically generating magnetic fields and supporting various payment interfaces, while addressing manufacturing challenges through innovative mechanical and electronic design.

Implementation Method 1

A programmable dynamic magnetic stripe card with a solenoid coil that can emulate multiple conventional magnetic stripe cards by generating a magnetic field

Methodology Applied

Scientific EffectMagnetic field generation: Electromagnetic Induction

Data Source

PatentUS20240121299A1Systems and methods for constructing programmable credential and security cards

Publication Date: 2024.04.11 BLOCK INC

AI summary

A method for designing and constructing a thin programmable dynamic credential card is disclosed. The thin programmable dynamic credential card may comprise multiple layers, including a top surface layer containing an opening through which a graphical display system below the top surface layer can be viewed. The graphical display system is configured to present at least one coded image. The at least one coded image is determined based at least in part on context data associated with a context of the programmable credential card.