Multi-Account Smart Card Switching for Secure Account Isolation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing financial cards face challenges in securely integrating multiple financial accounts while preventing unintended access, as existing integration methods lack effective security measures.
Innovation Solution
The integration of switching electronics and mechanical features in multi-account smart cards allows selective access to individual financial accounts through movable connectors or dial switches, enabling secure swapping and expansion of accounts without needing additional cards.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If multiple financial accounts are integrated on the same card, then the quantity of financial accounts accessible is improved, but the security and reliability deteriorate due to difficulty in keeping accounts separate and secure
Solution Approach 1:
The card is divided into multiple isolated account sections, each with its own memory component and communication interface. Switching electronics segment the communication path to connect only the selected account section to the external reader, physically isolating other accounts during transactions.
Solution Approach 2:
Switching electronics act as an intermediary between the external reader and multiple account memory components. The switch selectively connects only the intended account to the reader through controlled electrical pathways, preventing unintended access while maintaining secure isolation.
2Adaptability or versatility
If multiple financial accounts are integrated on the same card, then the need for multiple cards is reduced, but the device complexity increases due to integration challenges
Solution Approach 1:
A single card structure integrates multiple account memory components and switching electronics to provide multi-account functionality. The card can selectively present different accounts to readers, making one card replace multiple single-account cards while maintaining standard card form factors.
Solution Approach 2:
Multiple account memory components are nested within a single card housing, with switching electronics routing connections between the external interface and the nested memory components. This allows compact integration of multiple accounts in a standard card form factor.
3Ease of operation
If switching electronics are added to enable selective account access, then the ease of operation is improved, but the device complexity increases
Solution Approach 1:
The card incorporates movable connectors or dial switches that allow users to dynamically change the selected account. The switching electronics respond to user input by reconfiguring electrical connections in real-time, enabling easy selection between different accounts during transactions.
Data Source
AI summary
A smart card includes a front surface plate including a linear cutout. An electrical connector is disposed on the front surface plate and extends into the linear cutout. The electrical connector is coupled to and movable along a communication interface trace through the linear cutout. A middle plate is positioned adjacent to the front surface plate, the middle plate including a cavity. A back surface plate is positioned adjacent to the middle plate. The cavity includes a first portion to hold one or more first memory components and a second portion to hold one or more second memory components. The electrical connector selectively electrically couples a first memory component of the one or more first and second memory components to the communication interface trace.