Webpage Preview Copy Prevention via Embedded JavaScript

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Existing internet services fail to effectively prevent unauthorized copying of proprietary content from webpage previews, even when the original webpages employ copy prevention technologies.

Innovation Solution

A method and system that select and transmit a portion of a webpage as a preview, incorporating a command, typically using JavaScript, to block copying functions on remote terminals, and determine if the webpage is copy-protected or part of a predetermined URL list to insert copy prohibition means into the preview page.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a preview of a webpage is provided to users, then the user can view content without visiting the original page, but the content can be easily copied and stolen

Engineering Contradiction:

Improveease of viewing contentVSAvoidunauthorized copying

Core Design Contradiction:

Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The patent applies preliminary anti-action by proactively embedding copy-prevention commands (such as JavaScript code that disables right-click, copy, and save functions) into the preview content before it is transmitted to the user's terminal. This pre-emptive measure blocks copying attempts before they can occur, resolving the contradiction between providing easy content access and preventing unauthorized copying.

Inventive Principle:

Principle #9Preliminary anti-action

2Object-affected harmful factors

If copy prevention commands are embedded in preview content, then copying is blocked, but the implementation complexity increases

Engineering Contradiction:

Improvecopying preventionVSAvoidsystem complexity

Core Design Contradiction:

Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The patent uses an intermediary approach by introducing a server as a mediator between the content provider and the user terminal. The server automatically generates and embeds copy-prevention commands into preview content before transmission, and can detect and respond to copying attempts. This intermediary handles the complexity of copy-protection implementation, shielding users from technical complexity while maintaining strong protection.

Inventive Principle:

Principle #24Intermediary (Mediator)

3Object-affected harmful factors

If the original webpage uses copy prevention technology, then the source content is protected, but previews still allow copying

Engineering Contradiction:

Improvesource content protectionVSAvoidpreview protection reliability

Core Design Contradiction:

Object-affected harmful factorsVSReliability

Solution Approach 1:

The patent applies segmentation by treating the preview content as a separate entity from the original webpage. Instead of relying solely on the original page's protection measures, the system extracts specific content segments for the preview and applies dedicated copy-prevention commands tailored to the preview context. This ensures that preview content has independent and reliable protection even when the source page uses different protection methods.

Inventive Principle:

Principle #1Segmentation

Data Source

PatentUS8677509B2Method and system for preventing copying of information from previews of webpages

Publication Date: 2014.03.18 NHN CORP

AI summary

A touch screen device may include: a touch panel receiving a touch signal; a noise measurement unit measuring a noise value input to the touch panel; a determination unit determining whether or not the measured noise value exceeds a threshold; and a control unit controlling an operation mode to be maintained or switched according to a determination result of the determination unit.