Power-Free Color-Changing Transaction Card via Extraction

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Solution Overview

Problem

Traditional color-changing transaction cards require a built-in power source to function, which becomes ineffective if the card is not charged or the power source is drained, rendering alerts and notifications moot.

Innovation Solution

The implementation of a microparticle-based medium, electrochemical cells, or liquid crystal fields within the transaction card to effectuate color changes without the need for a power source on the card, allowing for alerts and notifications to be communicated based on configured thresholds.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a built-in power source is incorporated into the transaction card to enable color-changing alerts, then the card can communicate account information to the cardholder, but the card becomes ineffective when the power source is drained or forgotten to be charged

Engineering Contradiction:

Improvealert functionalityVSAvoidpower source dependency

Core Design Contradiction:

ReliabilityVSUse of energy by moving object

Solution Approach 1:

The patent removes the power source from the transaction card system entirely. Instead of embedding a battery or power supply in the card, the system uses external power sources (such as mobile devices or ATMs) to activate the color-changing medium. This extraction eliminates the reliability issue of drained batteries while maintaining the alert communication capability.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The patent introduces an intermediary power delivery mechanism where external devices (mobile phones, ATMs) serve as the power source. The transaction card contains only the passive color-changing medium and communication components, while the intermediary device provides the electrical activation needed to change the card's color to indicate account status.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Loss of information

If traditional digital communication methods are used to convey account information, then the cardholder can access balances and spending limits, but the process requires login procedures and is time-consuming

Engineering Contradiction:

Improveaccount information deliveryVSAvoidengagement time

Core Design Contradiction:

Loss of informationVSLoss of time

Solution Approach 1:

The patent uses color changes in the transaction card to communicate account information directly to the cardholder. Different colors indicate different account statuses (such as sufficient balance, low balance, or spending limits). This visual communication system eliminates the need for digital login, apps, or websites, allowing the cardholder to immediately understand their account status by simply looking at the card color.

Inventive Principle:

Principle #32Color changes

Solution Approach 2:

The patent replaces the mechanical/digital interaction system (logging in, typing passwords, navigating apps) with a passive visual system. The card itself physically changes its appearance through color to convey information, substituting the need for active digital engagement with a passive visual alert that requires no user input or technical knowledge.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

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 the cardholder to receive alerts and notifications regarding account balances and spending limits without requiring a power source on the card, ensuring continuous functionality and improved communication of financial information.

Implementation Method 1

a microparticle-based medium may apply an electrical charge to change the color of the transaction

Methodology Applied

Scientific EffectElectrical charge application: Electrostatics

Implementation Method 2

a liquid crystal field may be used to effectuate a temporary color change

Methodology Applied

Scientific EffectLiquid crystal field effect: Liquid Crystals

Data Source

PatentUS11366995B2Providing alerts via a color changing transaction card

Publication Date: 2022.06.21 CAPITAL ONE SERVICES LLC

AI summary

Methods and systems disclosed herein may communicate information, such as alerts and notifications, to a cardholder via a color-changing transaction card. In particular, the cardholder may configure one or more thresholds that establish when a transaction card may change colors. For instance, a transaction card may change colors at, or while approaching, a first threshold. The transaction card may change colors at, or while approaching, a second threshold. When the cardholder's balance goes below the thresholds, the transaction card may revert back to the lower threshold color or the original color of the transaction card. Using the techniques described herein a financial institution may convey information to a cardholder in a way that does not require the cardholder to digitally engage with the financial institution.