Fuel Dispenser Payment Module for Secure POS Compatibility

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Solution Overview

Problem

Fuel dispensers face security concerns regarding physical integrity, proprietary equipment protection, and customer data privacy, with software and hardware upgrades often impacting retail point-of-sale systems, leading to compatibility issues and increased costs.

Innovation Solution

A payment module with a compatibility module that ensures secure and seamless communication between fuel dispensers and retail POS systems by matching POS requests to corresponding library entries, enabling encrypted or unencrypted responses and pass-through commands without requiring POS upgrades.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If software upgrades are implemented to enhance security of customer data and proprietary information, then security and privacy are improved, but compatibility with existing POS systems deteriorates

Engineering Contradiction:
ImprovesecurityVSAvoidcompatibility
Core Design Contradiction:
ReliabilityVSAdaptability or versatility

Solution Approach 1:

The patent introduces a compatibility module as an intermediary layer between the payment module and the POS system. This module translates secure encrypted communications from the payment module into formats that existing POS systems can understand, allowing security enhancements without requiring POS system upgrades. The compatibility module acts as a mediator that maintains backward compatibility while enabling modern security features.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Loss of information

If encrypted communication protocols are used to protect customer data, then data privacy is improved, but communication complexity with POS systems increases

Engineering Contradiction:
Improvedata privacyVSAvoidcommunication complexity
Core Design Contradiction:
Loss of informationVSDevice complexity

Solution Approach 1:

The compatibility module serves as an intermediary that handles the complexity of encrypted communication protocols. It receives encrypted data from the payment module, processes it according to the appropriate protocol (encrypted or unencrypted), and translates it into formats suitable for the POS system. This shields the POS system from communication complexity while maintaining data privacy.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The system dynamically changes communication parameters based on the type of data being transmitted. Sensitive information such as PINs and card numbers are transmitted using encrypted protocols, while non-sensitive information uses unencrypted protocols. The compatibility module determines the appropriate encryption level for each communication, optimizing both security and simplicity.

Inventive Principle:
Principle #35Parameter changes

3Reliability

If security measures are enhanced to prevent fraud and theft, then security is improved, but device complexity and cost increase

Engineering Contradiction:
ImprovesecurityVSAvoiddevice complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The compatibility module is implemented as software rather than additional hardware, reducing device complexity. It provides enhanced security features including support for multiple communication protocols (encrypted and unencrypted) without requiring physical hardware modifications. The module intercepts and processes communications between the payment module and POS system, adding security layers through software intelligence.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The compatibility module provides multiple functions within a single component: it handles both encrypted and unencrypted communications, supports multiple POS system types, and provides both data translation and security protocol management. This multi-functionality reduces the need for separate security devices while maintaining comprehensive protection against fraud and theft.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Data Source

PatentUS12608706B2Conducting fuel dispensing transactions
Publication Date: 2026.04.21 WAYNE FUELING SYSTEMS LLC
  • US12608706B2 patent drawing
  • US12608706B2 patent drawing
  • US12608706B2 patent drawing

AI summary

Fuel dispensing transactions may be accomplished by a variety of systems and techniques. A fuel dispensing device may include a payment module, a data entry device, and a customer display. The payment module may receive a first communication from a point of sale device requesting an encrypted response and receive a second communication from the point of sale device requesting an unencrypted response. The module may match the first communication to a first corresponding library entry, match the second communication to a second corresponding library entry, determine a user response based on one of the first corresponding library entry or the second corresponding library entry, where the user response defines one of the encrypted response based on the first corresponding library entry or the unencrypted response based on the second corresponding library entry, and use the corresponding library entry to generate a visual customer display requesting the user response.