Secure Self-Payment via Unique QR Code Verification

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Solution Overview

Problem

Current mobile shopping systems are inefficient and insecure, requiring physical payment cards and interactions with store associates for in-store payments, leading to delays and frustration for consumers and retailers alike, with existing solutions vulnerable to duplication and falsification.

Innovation Solution

A method and system using a mobile device to generate and verify a unique QR code for purchases, allowing consumers to complete transactions independently and securely, with the QR code containing information about the purchase, payment method, and consumer ID, which can be scanned by retailers for verification.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If consumers use traditional checkout processes with physical payment cards and store associate interaction, then payment verification can be performed, but it causes delays and increases time required for purchase completion

Engineering Contradiction:
Improvepayment verificationVSAvoidtime required for purchase completion
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The system performs preliminary actions by generating the unique QR code receipt at the moment of purchase completion, containing all verification information in advance. This eliminates the need for subsequent verification steps at checkout, as the receipt is immediately available on the consumer's mobile device with all necessary transaction data encoded.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The invention extracts the essential verification information from the traditional checkout process and encodes it into a compact QR code format. By taking out only the critical transaction data (purchase details, payment method, consumer ID) and encoding it in the QR code, the system eliminates unnecessary physical interactions and verification steps.

Inventive Principle:
Principle #2Taking out (Extraction)

2Ease of operation

If consumers carry physical payment cards for purchases, then payment transactions can be completed, but it causes inconvenience when consumers forget their wallet

Engineering Contradiction:
Improvepayment transaction capabilityVSAvoidforgetting wallet
Core Design Contradiction:
Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The system replaces the mechanical system of physical payment cards and wallets with a digital solution. The unique QR code receipt stored on the consumer's mobile device serves as the payment verification mechanism, eliminating the need for physical cards. The QR code contains all necessary transaction information and can be generated and accessed electronically without requiring any physical items.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

3Reliability

If existing systems use paper receipts for purchase verification, then consumers can verify purchases, but the receipts are vulnerable to duplication and falsification

Engineering Contradiction:
Improvepurchase verificationVSAvoidduplication and falsification
Core Design Contradiction:
ReliabilityVSObject-generated harmful factors

Solution Approach 1:

The invention uses optical copying technology through QR codes instead of paper receipts. The QR code contains encoded verification information that is difficult to duplicate or falsify compared to paper receipts. The unique code structure and encryption make it significantly harder to create counterfeit verification receipts, while still allowing easy scanning and verification by store systems.

Inventive Principle:
Principle #26Copying

4Ease of operation

If consumers interact with store associates for payment processing, then transactions can be completed, but it reduces productivity and increases wait times

Engineering Contradiction:
Improvetransaction completionVSAvoidprocessing speed
Core Design Contradiction:
Ease of operationVSProductivity

Solution Approach 1:

The system implements self-service by enabling consumers to complete payment verification independently using their mobile devices and QR codes. Consumers can verify their own purchases without requiring store associate intervention, as the QR code contains all necessary transaction information. This self-service approach significantly reduces wait times and increases overall system productivity while maintaining ease of operation.

Inventive Principle:
Principle #25Self-service

Data Source

PatentUS9934506B2System and method for facilitating secure self payment transactions of retail goods
Publication Date: 2018.04.03 DIGITAL RETAIL APPS
  • US9934506B2 patent drawing
  • US9934506B2 patent drawing
  • US9934506B2 patent drawing

AI summary

Disclosed herein are various embodiments for systems and methods for self-payment and verification of the purchase of retail goods and services. According to an embodiment of the invention, a method for verifying the purchase using a mobile electronic device in wireless communication with a payment verification system and a code generating system is provided, the method comprising the steps of: receiving from a consumer information identifying an item for purchase; receiving from a consumer information identifying payment means for purchasing the item for purchase; processing the information identifying the item for purchase and information identifying payment means and generating a unique QR code indicating a purchase of the item; sending the unique QR code to a mobile device for display by a consumer to the vendor of the item for purchase.