Electrophoretic Display Card With Location-Specific Token Selection
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Solution Overview
Problem
Existing transaction cards with virtual card numbers are vulnerable to unauthorized use due to undetected data breaches and lack practicality in incorporating electronic displays due to power/battery-related concerns.
Innovation Solution
A card with circuitry and memory that stores location-specific identifiers, which selects and presents a card identifier based on device location, enabling transaction processing without requiring a continuous power source for the display, using an electrophoretic display to remain active even after the user device powers off.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If an electronic display is incorporated on a transaction card, then location-specific card identifiers can be presented to enhance security and functionality, but power/battery requirements increase device complexity and reduce practicality
Solution Approach 1:
The patent extracts the power consumption requirement from the display functionality by using an electrophoretic display that maintains visual output without continuous power supply. The display is extracted from the traditional battery-powered configuration and integrated with a power-efficient architecture that allows identifier presentation without continuous battery operation.
Solution Approach 2:
The patent replaces the traditional battery-powered electronic display system with an electrophoretic display mechanism. This substitution eliminates the need for continuous electrical power to maintain display output, as the electrophoretic particles remain in position without ongoing energy input, thus reducing power/battery requirements while preserving display functionality.
2Reliability
If virtual card numbers are used to restrict usage to specific entities, then security against unauthorized use improves, but vulnerability to data breaches increases when entities are compromised
Solution Approach 1:
The patent segments the card identifier into multiple location-specific identifiers stored in the memory. Each identifier is associated with specific location information, allowing the system to divide the security function across multiple independent identifiers rather than relying on a single virtual card number, thereby reducing the impact of any single identifier being compromised.
Solution Approach 2:
The patent adds a location-based dimension to the security mechanism by associating identifiers with geographical or physical location information. This dimensional expansion moves security from entity-based restrictions to location-based restrictions, making it harder for attackers to utilize compromised identifiers since they would need both the identifier and the correct location context.
3Reliability
If multiple location-specific identifiers are stored and switched based on device location, then transaction security and location restriction improve, but device complexity and processing requirements increase
Solution Approach 1:
The patent implements self-service by having the card automatically determine its location and select the appropriate identifier without user intervention. The card uses its own sensors and stored location information to autonomously switch between identifiers based on current location, eliminating the need for complex user-based location management systems.
Solution Approach 2:
The patent applies preliminary action by pre-storing multiple location-specific identifiers and their associated location information in the card memory before use. This advance preparation allows the card to quickly retrieve and switch between identifiers based on location without requiring complex real-time computation or external system coordination during actual transactions.
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 security by restricting card usage to specific locations and time thresholds, reducing unauthorized access while eliminating the need for a battery-powered display, thus addressing vulnerabilities and practicality issues in existing systems.
Implementation Method 1
the card has an electrophoretic display, the first location-specific card identifier may continue to remain presented on the display after the user device stops powering the card
Data Source
AI summary
In certain embodiments, location-based activation of card identifiers may be facilitated. In some embodiments, an electrophoretic display card may store a set of location-specific card identifiers, where each card identifier of the set is associated with (i) an account of a user and (ii) creation location information indicating a device location of the user at a creation time of the card identifier. In response to being powered by a user device, the card may initiate wireless communication with the user device. The card may determine a device location of the user device, select a card identifier from the set of card identifiers that matches the device location, and switch a state of the card identifier to an active state to enable transaction processing for the card identifier. In some embodiments, the card may cause the active card identifier to be presented on an electrophoretic display of the card.