Multi-Faced Payment Card With RF Isolation
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Solution Overview
Problem
Consumers face inconvenience carrying multiple credit and debit cards due to limited wallet space and interference issues with multiple payment cards, necessitating a solution to combine multiple payment cards into a single card while maintaining functionality.
Innovation Solution
A multi-faced payment card with two smart chips and two antennae, electronically isolated by an RF block, allowing for near-field contactless access and enabling users to select between multiple financial service accounts for transactions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If multiple payment cards are combined into a single card, then the number of cards carried is reduced and wallet space is saved, but interference between multiple smart chips and antennae may occur
Solution Approach 1:
The card is divided into multiple faces (first face and second face), with each face containing separate smart chips and antennae. The RF block further segments the card body to create electromagnetic isolation zones, preventing interference between the multiple chips and antennae while allowing each to function independently.
Solution Approach 2:
An RF (radio frequency) block is introduced as an intermediary element between the first and second antennae. This RF block acts as an electromagnetic shield that isolates the two antennae from each other, preventing mutual interference while allowing both to coexist on the same card.
2Adaptability or versatility
If multiple smart chips and antennae are placed on a single card, then full functionality of multiple payment accounts is maintained, but device complexity increases
Solution Approach 1:
The card structure is segmented into multiple faces with distinct functional zones. Each face contains its own smart chip and antenna, organized in a structured layout that manages complexity through spatial separation and modular design.
Solution Approach 2:
The card is designed to perform multiple payment functions simultaneously, supporting both contactless payments (via antennae) and contact-based transactions (via smart chip contacts). The card can serve multiple payment accounts and purposes within a single unified structure.
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 users to consolidate multiple payment cards into one, reducing clutter and interference, while maintaining full functionality and allowing seamless selection between accounts for transactions.
Implementation Method 1
a first antenna coupled to the first smart chip, the first antenna providing near-field contactless access to the first smart chip
Implementation Method 2
a second antenna coupled to the second smart chip, the second antenna providing near-field contactless access to the second smart chip
Implementation Method 3
an RF block that electronically isolates the first antenna and the second antenna from each other
Data Source
AI summary
The disclosed embodiments provide a payment card. The payment card may have a first face and a second face opposite the first. Additionally, the payment card may comprise a first smart chip, the first smart chip having contacts that are electronically accessible from the first face of the card. The payment card may further comprise a first antenna coupled to the first smart chip, the first antenna providing near-field contactless access to the first smart chip and a second smart chip, the second smart chip having contacts that are electronically accessible from the second face of the card. Additionally, the payment card may comprise a second antenna coupled to the second smart chip, the second antenna providing near-field contactless access to the second smart chip and an RF block that electronically isolates the first antenna and the second antenna from each other.