Modular Transaction Card Frame for Mini-Card Reader Compatibility
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Solution Overview
Problem
Transaction cards with smaller form factors, such as mini-cards, face compatibility issues with traditional card readers and are susceptible to skimming due to their wireless operation.
Innovation Solution
A card frame assembly that secures a smaller transaction card, incorporating a receptacle and antenna, enabling it to function as a traditional form factor card, with features like electrical contacts, shielding, and a processing circuit for authentication and cryptographic functions, and utilizing a mobile device for additional security.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a mini transaction card is used, then portability and convenience are improved, but compatibility with traditional card readers deteriorates
Solution Approach 1:
The patent combines the mini transaction card with a card frame assembly that has traditional credit card dimensions. The card frame includes a receptacle to secure the mini card and an antenna to enable contactless communication, merging the portability of the mini card with the compatibility of a traditional card form factor.
Solution Approach 2:
The card frame acts as an intermediary between the mini transaction card and the card reader. It provides the traditional card dimensions and communication interface that card readers expect, while housing the mini card internally, thus mediating the incompatibility between small form factor and traditional reader requirements.
2Productivity
If wireless communication is enabled on the transaction card, then contactless transaction capability is improved, but susceptibility to skimming deteriorates
Solution Approach 1:
The system implements authentication feedback mechanisms where the card frame and mini card exchange cryptographic credentials with the card reader. The processing circuit verifies transaction authenticity and generates unique identifiers that change with each transaction, providing feedback that prevents skimming by ensuring the card is authenticated each time.
Solution Approach 2:
The patent applies preliminary security measures including shielding around the antenna and cryptographic authentication protocols before any data transmission occurs. The card frame and mini card perform mutual authentication with the reader before enabling contactless transactions, preventing skimming by establishing security beforehand.
3Ease of operation
If the transaction card operates independently, then ease of use is improved, but security against unauthorized transactions deteriorates
Solution Approach 1:
The patent merges the mini transaction card with a card frame assembly that includes a processing circuit for authentication. This combination allows the card to operate independently for contactless transactions while the card frame provides the cryptographic authentication and unique identifier generation, ensuring security without compromising ease of use.
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
Enhances compatibility with various card readers and provides enhanced security against skimming by generating unique identifiers and leveraging mobile device proximity for authentication.
Implementation Method 1
The card frame includes an antenna that wirelessly communicates with an antenna in the transaction card when it is secured in the receptacle
Implementation Method 2
The card frame may include shielding to prevent the antenna in the transaction card and the antenna in the card frame from both communicating with a card reader simultaneously
Data Source
AI summary
A modular transaction card assembly includes a card frame having the traditional dimensions of a credit card, and a transaction card that is smaller than a traditional card and that fits into a receptacle of the card frame. Each of the card frame and the transaction card may be capable of performing contactless data transactions individually. In some instances, the combined assembly of the card frame with the transaction card may detect a proximity of a mobile device to the assembly and generate an authentication credential that is unique to the combination of the card frame, the transaction card, and the mobile device. The authentication credential may be used to authentic the transaction card when conducting a data transaction.