Variable Security Data Printing System for Document Authentication

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Solution Overview

Problem

Existing security features in documents, such as microprints, are predictable and fail to differentiate between original and copied documents, as they remain static across all printed pages, making them vulnerable to counterfeiting and unable to indicate alterations.

Innovation Solution

A computer-based system that adds variable security data to printed documents, using a processor to modify print data with criteria such as author names, scannable codes, background watermarks, or pantographs, ensuring each document has unique security features that can be distinguished from copies or alterations.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If static microprint text is used on each printed page, then the security feature is simple to implement, but the security effectiveness deteriorates because the same text is predictable and vulnerable to counterfeiting

Engineering Contradiction:
Improveease of implementationVSAvoidsecurity effectiveness
Core Design Contradiction:
Ease of manufactureVSReliability

Solution Approach 1:

The patent transforms static microprint text into dynamic variable data by capturing portions of the actual document content (such as author names, titles, or other text portions) and using them as security features. This makes the security element change with each document while maintaining implementation simplicity through automated capture and print integration.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The invention changes the parameter of the security data from fixed static text to variable text that depends on document content parameters. By capturing actual document portions and using them as security features, the system creates unique security elements for each document while keeping the implementation process straightforward.

Inventive Principle:
Principle #35Parameter changes

2Device complexity

If static microprint is used across all documents, then the printing process is simple, but the ability to detect alterations deteriorates because the same microprint cannot indicate whether it belongs to the examined document

Engineering Contradiction:
Improveprinting process complexityVSAvoidalteration detection capability
Core Design Contradiction:
Device complexityVSDifficulty of detecting and measuring

Solution Approach 1:

The patent applies local quality by making the security feature specific to each document's content rather than uniform across all documents. By capturing and printing portions of the actual document text as microprint, each document receives a security feature tailored to its own content, enabling examiners to verify authenticity by checking if the microprint matches the document's actual content.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The system implements feedback by creating a self-verifying security mechanism where the captured document content is printed as microprint, which then serves as a reference for verification. Examiners can compare the microprint against the document content to detect alterations, creating a closed-loop verification system that automatically provides authentication feedback.

Inventive Principle:
Principle #23Feedback

3Reliability

If variable security data based on document content is captured and printed, then the security effectiveness is improved, but the processing complexity increases due to data-capturing criteria and modification requirements

Engineering Contradiction:
Improvesecurity effectivenessVSAvoidprocessing complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent merges the security feature generation process with the existing document printing workflow. By capturing portions of the document content and integrating them directly into the print data modification process, the system combines security enhancement with routine document processing, reducing the need for separate complex security processing steps.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The system implements self-service by automatically capturing relevant document content portions based on predefined criteria and generating the variable security data without requiring manual intervention. The processor autonomously identifies, captures, and integrates the security features into the print data, minimizing processing complexity through automation.

Inventive Principle:
Principle #25Self-service

Data Source

PatentUS9088735B2Computer-based system and method for adding variable security data in printing operations
Publication Date: 2015.07.21 TROY GROUP INC
  • US9088735B2 patent drawing
  • US9088735B2 patent drawing
  • US9088735B2 patent drawing

AI summary

A computer-based method and a system for adding and printing variable security data. The system includes a memory, a processor, and a printer. The memory stores received print data. The processor modifies the print data for adding variable security print data and sends the modified print data for printing. The printer receives and prints the modified print data. The variable security data may vary between different printing operations. The processor captures a portion of the stored print data based on data-capturing criteria and modifies the stored print data based on the captured portion of the stored print data. The data-capturing criteria may be user-defined and may include leading tag data, trailing tag data, matching tag data, or combinations thereof for indicating a relative position of the captured data.