Permission-Based Personal Information Display to Prevent Data Leakage

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Solution Overview

Problem

Existing technologies fail to prevent unnecessary leakage of personal information when managing digital data, including identification documents and other sensitive user information.

Innovation Solution

An information display apparatus with a display unit, input unit, and determination unit that receives inputs for designating personal information and determines permissible display based on permission data, masking unnecessary information, and controlling display to prevent unauthorized access.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If personal information is displayed freely on a terminal display, then ease of operation is improved, but information security deteriorates

Engineering Contradiction:

Improveease of presenting personal informationVSAvoidinformation leakage

Core Design Contradiction:

Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The system performs preliminary actions by storing permission data in advance that designates which personal information items are permitted to be displayed. Before displaying any personal information, the system checks this pre-stored permission data to determine whether the requested information should be displayed, thereby preventing unauthorized display before it occurs.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The system introduces permission data as an intermediary between the personal information storage and the display function. This permission data acts as a mediator that controls whether personal information can be displayed by comparing the requested information against the permitted items, thereby preventing direct unauthorized access from the display unit.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Productivity

If all personal information is displayed at once, then productivity is improved, but information security deteriorates

Engineering Contradiction:

Improvespeed of presenting informationVSAvoidunnecessary leakage

Core Design Contradiction:

ProductivityVSObject-affected harmful factors

Solution Approach 1:

The system applies local quality by selectively displaying only specific items of personal information that are permitted according to the stored permission data, rather than displaying all personal information uniformly. The display unit presents information locally and specifically based on what is authorized, preventing unnecessary leakage of unrelated personal information.

Inventive Principle:

Principle #3Local quality

Solution Approach 2:

The system determines in advance which personal information items are permitted to be displayed by storing permission data before any display operation occurs. This preliminary determination allows the system to quickly display only the necessary permitted information without needing to filter or check each item during the display process, maintaining productivity while ensuring security.

Inventive Principle:

Principle #10Preliminary action

Data Source

PatentEP4224349B1Information display device, information display method, and recording medium

Publication Date: 2025.12.03 NEC CORP

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AI summary

An information display apparatus (1) includes: a display unit (14); an input unit (13) configured to receive an input for designating desired personal information that is requested to be displayed on the display unit; and a determination unit (12, 122) configured to determine, based on permission data (112) designating personal information that is permitted to be displayed on the display unit, whether or not the desired personal information is able to be displayed on the display unit.