Electronic Wallet Card Selection via Transaction Token
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Solution Overview
Problem
Many existing chip cards are not compatible with newer contactless payment terminals that use technologies like NFC or BLE, requiring physical insertion and manual selection, which is inconvenient and may lead to missed rewards or unnecessary fees.
Innovation Solution
An electronic wallet device with multiple card slots and processors that can select the most suitable transaction card based on transaction information, providing a transaction token to the terminal for seamless processing without manual intervention.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If physical insertion of chip cards is required for transactions, then security is improved through integrated circuit validation, but ease of operation deteriorates due to manual card selection and physical insertion requirements
Solution Approach 1:
The system automatically selects the appropriate transaction card from multiple cards in the wallet device based on transaction information, eliminating the need for manual user selection. The processor autonomously determines which card to use by analyzing transaction details and comparing them with stored card characteristics, thereby improving ease of operation while maintaining security through automated card validation.
2Adaptability or versatility
If multiple transaction cards are stored in the electronic wallet device, then adaptability is improved for different transaction types, but device complexity increases due to multiple card slots and readers
Solution Approach 1:
The electronic wallet device incorporates multiple card slots and readers that can handle different types of transaction cards (chip cards, contactless cards, magnetic stripe cards) using a single unified device structure. This multi-functional design allows the wallet to accommodate various card types and transaction methods without requiring separate devices, thereby improving adaptability while managing complexity through integration.
3Productivity
If automated card selection is implemented based on transaction information, then productivity is improved by reducing user effort, but device complexity increases due to information processing requirements
Solution Approach 1:
The system pre-stores characteristics and information about multiple transaction cards in the electronic wallet device before transactions occur. When a transaction is initiated, the processor quickly matches the transaction information with the pre-stored card characteristics to automatically select the appropriate card. This preliminary preparation of card data enables rapid automated selection without requiring complex real-time analysis, thereby improving productivity while managing processing complexity.
Data Source
AI summary
An example electronic wallet device may include a plurality of card slots configured to hold transaction cards, each card slot, of the plurality of card slots, including a card reader, and the plurality of card slots holding at least two transaction cards; and one or more processors to receive transaction information associated with a transaction at a transaction terminal, select a transaction card, of the at least two transaction cards based on the received transaction information, and/or provide a transaction token, associated with the selected transaction card to be used in connection with the transaction terminal to process the transaction.