Polarized Color Value Conversion via Reference Mediator

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Solution Overview

Problem

Color measurement values obtained in polarized and unpolarized forms are not directly comparable, making it difficult to control print quality when original prints are measured in one form and printing materials are in the other, as existing methods cannot efficiently convert between these forms.

Innovation Solution

A method using a computer to convert polarized color measured values to unpolarized values or vice versa by employing a pair of reference measured values, calculated using a color model to account for ink layer thickness changes and positioning on different coloring lines, allowing for comparison and correction of deviations.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Quantity of substance

If color measured values are registered in both polarized and unpolarized forms, then measurement completeness is improved, but device complexity and data management requirements worsen

Engineering Contradiction:

Improvemeasurement data completenessVSAvoidmeasurement system complexity

Core Design Contradiction:

Quantity of substanceVSDevice complexity

Solution Approach 1:

The patent introduces a computer-based conversion system as an intermediary that transforms polarized measured values into unpolarized values (or vice versa) using reference measured values and color models. This mediator enables compatibility between different measurement forms without requiring the measurement device itself to handle both forms simultaneously, thus resolving the contradiction between data completeness and device complexity.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Measurement precision

If conversion between polarized and unpolarized measured values is implemented, then comparability of measurement data is improved, but calculation complexity and processing time worsen

Engineering Contradiction:

Improvedata comparabilityVSAvoidconversion processing time

Core Design Contradiction:

Measurement precisionVSLoss of time

Solution Approach 1:

The patent pre-stores reference measured values (both polarized and unpolarized forms) in the computer memory before actual conversion is needed. During conversion, the system retrieves these pre-stored references and applies color models to calculate conversion factors, rather than performing complex real-time conversions. This preliminary preparation significantly reduces processing time while maintaining measurement comparability.

Inventive Principle:

Principle #10Preliminary action

3Adaptability or versatility

If color measured values at different ink layer thicknesses are converted, then adaptability to different printing conditions is improved, but measurement precision worsens due to thickness variations

Engineering Contradiction:

Improveprinting condition adaptabilityVSAvoidcolor measurement accuracy

Core Design Contradiction:

Adaptability or versatilityVSMeasurement precision

Solution Approach 1:

The patent employs color models that incorporate ink layer thickness as a variable parameter. The conversion system adjusts measurement values based on the specific thickness conditions of the printing material being measured. By using color models that account for thickness variations and storing reference values at multiple thickness levels, the system maintains measurement precision while adapting to different printing conditions.

Inventive Principle:

Principle #35Parameter changes

Data Source

PatentUS7808676B2Method for converting color measured values in polarized or unpolarized form

Publication Date: 2010.10.05 HEIDELBERGER DRUCKMASCHINEN AG

AI summary

A method for converting polarized color measured values to unpolarized color measured values or vice versa uses a computer. The conversion is carried out by the computer by using a pair of reference measured values determined in polarized and unpolarized form.