Mobile Terminal Payment Mode Function Restriction

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Mobile terminals face security issues when used for payments, as they can be occupied by unauthorized users who can access other functions or information, compromising user privacy and personal data.

Innovation Solution

A mobile terminal with a payment mode that restricts execution to only payment functions, requiring user authentication and limiting other functions until the payment mode is released, ensuring secure transactions and protecting user privacy.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the mobile terminal is used for wireless payment, then payment convenience is improved, but security risk increases due to potential unauthorized access by other users

Engineering Contradiction:

Improvepayment convenienceVSAvoidsecurity risk

Core Design Contradiction:

Ease of operationVSReliability

Solution Approach 1:

The system dynamically changes the operational state of the mobile terminal by entering a payment mode that restricts other functions. The control unit transitions the terminal from a normal multi-functional state to a limited payment-only state, and can extend this restriction period based on touch input duration, making the security response dynamic rather than static

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The system applies preliminary anti-action by proactively limiting execution of non-payment functions before unauthorized access can occur. When payment mode is activated, the control unit preemptively restricts other applications and functions, preventing potential security issues rather than responding to them after they occur

Inventive Principle:

Principle #9Preliminary anti-action

2Reliability

If the mobile terminal enters payment mode with function restrictions, then security is improved, but device complexity increases

Engineering Contradiction:

ImprovesecurityVSAvoidcontrol logic complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The system segments the operational modes of the mobile terminal into distinct states: normal mode with full functionality and payment mode with restricted functionality. This segmentation allows the control unit to manage security by switching between predefined operational states rather than implementing complex continuous control logic

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The touch screen serves multiple functions: it displays payment interface elements, detects authentication input, and determines the duration of touch to control the restriction period. This multi-functionality reduces the need for separate components and simplifies the overall system architecture while maintaining security

Inventive Principle:

Principle #6Universality (Multi-functionality)

3Reliability

If the restriction period is extended based on touch duration, then security is improved, but loss of time increases for the user

Engineering Contradiction:

Improvesecurity protection durationVSAvoidterminal unavailability time

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

The system uses feedback from the user's touch input duration to automatically determine the restriction period length. The control unit measures how long the user touches the screen and uses this feedback to set the appropriate security extension period, creating a closed-loop system that adapts to user behavior without requiring explicit time input

Inventive Principle:

Principle #23Feedback

Data Source

PatentUS11087306B2Mobile terminal and method for controlling the same

Publication Date: 2021.08.10 LG ELECTRONICS INC

AI summary

In a mobile terminal, while a payment mode in which payment is available to be performed by a payment unit, execution of a function other than the function related to the payment is limited.