Document Security Window for Cross-Page Verification

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Solution Overview

Problem

Current document verification methods are complex and inefficient, particularly when checking multi-page documents with security features, as they often require individual inspection of each page, which can lead to errors and increased vulnerability to forgery.

Innovation Solution

Incorporating a light-transparent window with complementary security features that can be read in different wavelength ranges, including visible, infrared, and ultraviolet, to form a matrix or code that enhances document security and allows for efficient verification by combining data from adjacent pages, using a document reading device with image recording and processing capabilities.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If security features are applied to several document pages individually, then document security against forgery is increased, but verification complexity and time consumption increase

Engineering Contradiction:
Improvedocument securityVSAvoidverification complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent combines security features from multiple document pages into a single integrated verification process. A light-transparent window is created that allows viewing of security features across adjacent pages simultaneously, enabling verification of multiple pages through one inspection point rather than requiring separate checks of each page individually.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The light-transparent window acts as an intermediary element that facilitates the viewing and verification of security features across multiple pages. This window serves as a mediator that allows light to pass through adjacent pages, making security features visible and verifiable without requiring complex individual page inspection equipment.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Measurement precision

If individual document pages are checked separately, then verification thoroughness is maintained, but verification efficiency and speed decrease

Engineering Contradiction:
Improveverification thoroughnessVSAvoidverification efficiency
Core Design Contradiction:
Measurement precisionVSProductivity

Solution Approach 1:

Multiple verification operations are merged into a single viewing action. The light-transparent window enables simultaneous observation of security features across adjacent pages, allowing verifiers to check multiple pages in one go rather than sequentially, thereby maintaining thoroughness while significantly improving efficiency.

Inventive Principle:
Principle #5Merging (Combining)

3Productivity

If light-transparent window is created in document page, then verification efficiency is improved, but document structural integrity may be compromised

Engineering Contradiction:
Improveverification efficiencyVSAvoiddocument structural integrity
Core Design Contradiction:
ProductivityVSStrength

Solution Approach 1:

The light-transparent window is implemented using thin film or foil materials that maintain the document's structural integrity while allowing light transmission. These thin film solutions provide the necessary transparency for verification purposes without creating weak points that would compromise the overall strength and durability of the document structure.

Inventive Principle:
Principle #30Flexible shells and thin films

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

This approach significantly increases document security against forgery by enabling efficient verification of personal and document data through a combined security feature that can be read across pages, reducing errors and enhancing authenticity checks.

Implementation Method 1

a light-transparent window (103) in the first document page (101) and a second document page (105) with a security feature (107)

Methodology Applied
Scientific EffectLight transmission: Light

Implementation Method 2

The security feature or the additional security feature can be read completely or completely in the visible wavelength range, while only parts of the security feature or the additional security feature can be read in the infrared wavelength range

Methodology Applied
Scientific EffectOptical detection in different wavelength ranges: Absorption Spectroscopy

Data Source

PatentEP3256331B1Document
Publication Date: 2020.04.01 BUNDESDRUCKEREI GMBH
  • EP3256331B1 patent drawingFigure 1
  • EP3256331B1 patent drawingFigure 2
  • EP3256331B1 patent drawingFigure 3

AI summary

The invention relates to a document (100) which comprises: a first document page (101) that has a window (103) which is transparent to light; and a second document page (105) that has a security feature (107) arranged in a predetermined region, the position of the predetermined region on the second document page (105) corresponding to the position of the transparent window (103) of the first document page (101) such that when said first (101) and second (105) document pages are brought together, the security feature (107) can be read through the transparent window (103).