Double-Sided Credit Card With Interlayer Shielding

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Solution Overview

Problem

As individuals accumulate multiple financial transaction cards linked to different accounts for various benefits, managing and carrying them becomes increasingly cumbersome, necessitating a solution to consolidate these cards while maintaining separate account functionalities.

Innovation Solution

A double-sided credit card design featuring a first side for transactions linked to a first financial account and a second side for transactions linked to a second financial account, with an electronic blocker layer to prevent signal interference between the two, along with microchips and magstripes for each side to facilitate both contact and contactless transactions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If multiple financial transaction cards are consolidated into a single double-sided card, then card carrying convenience is improved, but signal interference between the two sides may occur

Engineering Contradiction:

Improvecard carrying convenienceVSAvoidsignal interference

Core Design Contradiction:

Ease of operationVSObject-affected harmful factors

Solution Approach 1:

An electronic blocker layer is positioned between the first and second sides of the credit card to block electronic signals from interfering with each other. This intermediary layer acts as a mediator that prevents harmful electromagnetic interference while allowing the consolidated card structure to function properly.

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The credit card is divided into two distinct sides, each with its own antenna and microchip, allowing separate functionality for different financial accounts. This segmentation enables independent operation of each side while maintaining physical consolidation.

Inventive Principle:

Principle #1Segmentation

2Adaptability or versatility

If antennas and microchips are embedded on both sides of the card, then separate transaction capabilities are improved, but device complexity increases

Engineering Contradiction:

Improveseparate transaction capabilitiesVSAvoidcard structure complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The credit card is designed with universal functionality on both sides, where each side can independently process transactions for different financial accounts. The card structure incorporates multiple antennas and microchips that enable versatile transaction capabilities while maintaining a single card form factor.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

Multiple functional components (antennas, microchips, magnetic stripes) are nested within the thin profile of the credit card. The electronic blocker layer and multiple circuitry elements are embedded in a compact arrangement that fits within the standard card dimensions.

Inventive Principle:

Principle #7Nested doll (Nesting)

3Reliability

If an electronic blocker layer is added to prevent signal interference, then signal isolation is improved, but manufacturing complexity increases

Engineering Contradiction:

Improvesignal isolationVSAvoidmanufacturing process complexity

Core Design Contradiction:

ReliabilityVSEase of manufacture

Solution Approach 1:

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The credit card incorporates a composite structure with an electronic blocker layer made of ferrite material or other electromagnetic shielding materials. This composite construction combines different materials with complementary properties to achieve signal isolation while maintaining card functionality.

Inventive Principle:

Principle #40Composite materials

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 convenient carrying of a single card that consolidates multiple account functionalities, preventing signal interference and maintaining separate transaction capabilities for each account, thus maximizing benefits while simplifying card management.

Implementation Method 1

An electronic blocker layer is positioned between the first side and the second side. The electronic blocker layer is configured to block at least some of the electronic signals executing transactions linked to the first financial account from interfering with at least some of the electronic signals executing transactions linked to the second financial account.

Methodology Applied

Scientific EffectElectromagnetic shielding: Faraday Cage

Data Source

PatentUS12008426B2Double sided credit card

Publication Date: 2024.06.11 AMERICAN EXPRESS TRAVEL RELATED SERVICES CO INC

AI summary

Disclosed herein is a system for a double-sided credit card and a method of manufacturing the same. In some embodiments, the double-sided credit card comprises a first side and a second side opposite to the first side. The first side comprises a first antenna configured to transmit electronic signals to execute transactions linked to a first financial account, while the second side comprises a second antenna configured to transmit electronic signals to execute transactions linked to a second financial account. An electronic blocker layer is positioned between the first side and the second side such that the electronic signals executing transactions linked to the first financial account is blocked from interfering with the electronic signals executing transactions linked to the second financial account.