Identification Document Spectral Security Layer

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Solution Overview

Problem

Identification documents lack effective security features to prevent forgery, as existing methods rely on visible security features that can be easily replicated, failing to provide adequate protection against sophisticated forgery attempts.

Innovation Solution

An identification document structure incorporating a layered arrangement of an image information layer and a print layer, where the print layer contains both visible and encrypted color information components, with the encrypted component only detectable through a technical device, enhancing security by hiding authenticity features within the image itself.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If visible security features are used in identification documents, then the document provides some security against forgery, but the security features can be easily replicated and observed by the naked eye

Engineering Contradiction:
Improvesecurity against forgeryVSAvoiddetectability of security features
Core Design Contradiction:
ReliabilityVSDifficulty of detecting and measuring

Solution Approach 1:

The patent extracts the security information from the visible domain and embeds it in the invisible spectral domain. Security features are encoded as spectral signatures that are imperceptible to the human eye but detectable by spectral sensors, effectively removing the security information from observable reality while maintaining its authentication function

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent introduces spectral signatures as an intermediary between the document substrate and the authentication system. These spectral signatures act as hidden mediators that carry security information without being directly observable, requiring specialized detection equipment to access the authenticated information

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If encrypted information is integrated into the color identification image, then security is enhanced by hiding authenticity features, but the information becomes imperceptible to the naked eye

Engineering Contradiction:
Improvesecurity against forgeryVSAvoidvisibility of security features
Core Design Contradiction:
ReliabilityVSIllumination intensity

Solution Approach 1:

The patent extends the color concept beyond the visible spectrum into the spectral domain. Security information is encoded as variations in spectral reflectance or emission characteristics that are invisible to human vision but can be detected and decoded by spectral analysis instruments

Inventive Principle:
Principle #32Color changes

Solution Approach 2:

The patent creates a composite structure where the identification document combines visible graphical elements with invisible spectral signatures. The security features are integrated as multi-layered information: the visible color image for identification and the invisible spectral patterns for authentication

Inventive Principle:
Principle #40Composite materials

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The solution significantly enhances security by making authenticity verification possible only through technical means, providing an additional layer of protection against document forgery and ensuring the authenticity of identification documents.

Implementation Method 1

The image information comprises black-and-white information recorded in the image information layer, which correlates with the second color information component recorded in the print layer and can be reconstructed through the lens arrangement

Methodology Applied
Scientific EffectRefraction: Refraction

Data Source

PatentEP4417436A1Identification document, decryption application and method for producing an identification document
Publication Date: 2024.08.21 VERIDOS GMBH
  • EP4417436A1 patent drawingFigure 1~2
  • EP4417436A1 patent drawingFigure 3~4
  • EP4417436A1 patent drawingFigure 5~6

AI summary

The invention relates to an identification document (1) comprising an image information layer (10), a lens arrangement (20), and a printing layer (30). The printing layer (30) is printed onto the lens arrangement (20) and contains color information (32) to form a colored identification image (34) on the identification document (1). The color information (32) has a first color information component (32a), which includes a color extract of the colored identification image (34), and a second color information component (32b), which is integrated into the colored identification image (34) in the form of encrypted information. The image information layer (10) has image information (12) with black-and-white information that correlates with the second color information component (32b) and can be reconstructed through the lens arrangement (20).The invention further relates to a decryption application and a method for producing an identification document (1).