Shared Payment Hardware Interface Security Control

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Solution Overview

Problem

Existing payment solutions face high manufacturing costs and increased security risks due to complex hardware requirements and limited flexibility in payment processing.

Innovation Solution

A secured payment method and system that utilizes a secured payment device with a shared payment hardware interface with a mobile terminal, detecting and controlling the interface to prevent unauthorized payments and provide security warnings.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a secured payment device with dedicated payment hardware interface is used, then payment security is improved, but manufacturing cost increases

Engineering Contradiction:

Improvepayment securityVSAvoidmanufacturing cost

Core Design Contradiction:

ReliabilityVSEase of manufacture

Solution Approach 1:

The patent combines the secured payment module with the mobile terminal into an integrated device, merging previously separate components (secured payment device and mobile terminal) into a unified system. This integration allows sharing of hardware interfaces and reduces the need for separate dedicated payment hardware, thereby lowering manufacturing costs while maintaining security through the integrated secured payment module

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The mobile terminal is designed to serve multiple functions: it acts as both a general-purpose mobile device and a secured payment device. The payment hardware interface can be controlled by either the secured payment module or the mobile terminal depending on the operational mode, making the system universal and eliminating the need for separate dedicated payment hardware for different scenarios

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Ease of operation

If mobile terminal controls payment hardware interface, then flexibility and convenience are improved, but payment security risk increases

Engineering Contradiction:

Improveflexibility and convenienceVSAvoidpayment security risk

Core Design Contradiction:

Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The control of the payment hardware interface is made dynamic rather than static. The system can switch control between the secured payment module and the mobile terminal based on the operational context. During normal payment operations, the mobile terminal controls the interface for flexibility; during security-sensitive operations, the secured payment module takes control to prevent unauthorized access, thus adapting control dynamically to balance convenience and security

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The system implements feedback mechanisms to monitor and detect unauthorized control attempts of the payment hardware interface. The secured payment module continuously monitors the control status and can detect when the mobile terminal attempts unauthorized control, providing feedback that triggers security warnings or interrupts the payment process to prevent security risks

Inventive Principle:

Principle #23Feedback

3Ease of manufacture

If secured payment module shares hardware interface with mobile terminal, then manufacturing cost is reduced, but detection of unauthorized control becomes more difficult

Engineering Contradiction:

Improvemanufacturing costVSAvoiddetection of unauthorized control

Core Design Contradiction:

Ease of manufactureVSDifficulty of detecting and measuring

Solution Approach 1:

The secured payment module acts as an intermediary between the mobile terminal and the payment hardware interface. It mediates all access to the shared hardware interface, verifying and authorizing control requests. This intermediary role enables the system to detect unauthorized control attempts by monitoring all interface access through the secured payment module, maintaining security despite the shared hardware architecture

Inventive Principle:

Principle #24Intermediary (Mediator)

Data Source

PatentUS12307440B2Secured payment method, secured payment device, and computer-readable storage medium

Publication Date: 2025.05.20 PAX COMP TECH SHENZHEN

AI summary

A secured payment method, secured payment device and computer-readable storage medium, relating to the technical field of Internet. The method comprises: detecting whether a mobile terminal is connected to a first secured payment module, wherein the first secured payment module shares a payment hardware interface with the mobile terminal; activating the payment hardware interface, if the detection result shows that the mobile terminal is connected to the first secured payment module; detecting whether the payment hardware interface is controlled by the first secured payment module or by the mobile terminal; providing a payment warning, if the detection result shows that the payment hardware interface is controlled by the mobile terminal. Thus, the manufacturing costs of the devices can be reduced, potential safety risk in some transaction can also be avoided, and a secured payment is guaranteed.