Optical-Code Contactless Payment for Secure POS Transactions
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Solution Overview
Problem
Conventional electronic payment techniques at the point-of-sale require sensitive payment information exchange, creating security gaps and necessitate physical devices, limiting transaction flexibility and security.
Innovation Solution
Facilitate contactless payment using machine-readable optical labels and remote wallets, enabling secure transactions through digital payment networks and mobile wallets by generating codes or prompts for mobile device interaction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional electronic payment techniques are used, then payment transactions can be processed, but sensitive payment information must be exchanged creating security gaps
Solution Approach 1:
The patent uses optical codes (QR codes or similar machine-readable labels) as copies of payment information. Instead of directly exposing sensitive payment data, the system creates an optical code that can be scanned to initiate payment. The actual sensitive information remains encrypted and stored securely, while only the optical code is exchanged between parties, eliminating the security risk of direct sensitive data transmission.
Solution Approach 2:
The patent introduces an intermediary payment processing system that acts as a mediator between the buyer and seller. This intermediary handles the sensitive payment information processing while the buyer only needs to provide the optical code. The intermediary system securely processes the payment through encrypted communications with the bank, preventing direct exposure of sensitive payment information between the buyer and seller.
2Adaptability or versatility
If conventional electronic payment techniques are used, then payments can be processed, but physical devices such as credit or debit cards are required, limiting transaction flexibility
Solution Approach 1:
The patent replaces the physical credit/debit card with a digital optical code that can be displayed on a mobile device or other electronic screen. The optical code serves as a digital copy of the payment credential, eliminating the need for physical cards. Users can store multiple optical codes on their mobile devices, and the system can dynamically generate new codes, providing greater flexibility and eliminating the physical device requirement.
Solution Approach 2:
The patent substitutes the mechanical physical card system with an optical/digital system. Instead of requiring physical insertion of a card into a reader, the system uses optical codes that can be scanned through a camera or optical sensor. This substitution eliminates the mechanical interaction with physical cards and enables contactless payment through optical recognition, greatly enhancing transaction flexibility.
3Reliability
If contactless payment using optical labels and remote wallets is implemented, then transaction security is improved and physical devices are eliminated, but the system complexity increases
Solution Approach 1:
The patent extracts the complex payment processing logic from the end-user interface. The optical code generation and scanning are simple user actions, but the complexity of secure payment processing, encryption, and communication with banks is extracted and handled by the intermediary payment system. This separation keeps the user interface simple while managing system complexity in the background infrastructure.
Solution Approach 2:
The patent creates a universal payment system where optical codes can be generated and scanned across different devices and platforms. The same optical code mechanism works for various payment scenarios (in-person, online, mobile), and the intermediary system handles all payment processing uniformly. This universality simplifies the overall system architecture by using a single code-based approach for multiple payment functions rather than requiring different mechanisms for different scenarios.
Data Source
AI summary
A method for facilitating contactless payment at a point-of-sale is disclosed. The method includes receiving, via a terminal, a selection from a user at the point-of-sale, the selection corresponding to a payment preference; determining a transaction type based on the selection, the transaction type including a first transaction via a digital payment network and a second transaction via a mobile wallet; providing, via the terminal, transaction information and a transaction token to a mobile device that is associated with the user based on the determined transaction type; receiving, via the mobile device, a transaction request that includes the transaction information, the transaction token, and user payment information; initiating an electronic transaction based on the transaction request; and transmitting a result of the electronic transaction to the terminal and to the mobile device.