Parameter Disclosure via Hash Conversion and Blockchain Association

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Solution Overview

Problem

Existing image management systems require a fingerprint management database to associate image identification information with electronic watermarks, increasing management costs.

Innovation Solution

An information management method that irreversibly converts a first parameter into a second parameter using a hash algorithm, simultaneously or subsequently disclosing both parameters, and managing the association through a blockchain network to reduce costs and ensure authenticity.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a fingerprint management database is used to associate image identification information with electronic watermarks, then the authenticity and integrity of the association is ensured, but the management cost and system complexity increases

Engineering Contradiction:

Improveauthenticity of associationVSAvoidmanagement system complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent extracts the association verification function from a centralized fingerprint management database and distributes it to individual image reading apparatuses. Each apparatus independently stores its own identification information and cumulative reading count, eliminating the need for a centralized database while maintaining authentication capability.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The image reading apparatus performs self-verification by comparing its stored identification information and reading count against the electronic watermark data. This self-service mechanism eliminates the need for external database queries and centralized management, reducing system complexity while maintaining reliability.

Inventive Principle:

Principle #25Self-service

2Reliability

If a centralized fingerprint management database is implemented, then the association between image identification information and electronic watermarks is reliably maintained, but the operational cost increases

Engineering Contradiction:

Improveassociation reliabilityVSAvoidoperational cost

Core Design Contradiction:

ReliabilityVSEase of manufacture

Solution Approach 1:

The patent removes the centralized database component from the system architecture, extracting the verification function and distributing it to individual apparatuses. This eliminates ongoing operational costs associated with database maintenance, access control, and centralized management while preserving association reliability through local storage and comparison.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The patent replaces the expensive, complex centralized database system with simple, inexpensive local storage mechanisms at each image reading apparatus. Each apparatus maintains its own minimal data structure for identification information and reading count, significantly reducing operational costs while maintaining sufficient reliability for authentication purposes.

Inventive Principle:

Principle #27Cheap short-living objects (Disposable)

Data Source

PatentUS12585799B2Information management method, display apparatus, and non-transitory computer-readable storage medium storing program that discloses both a first paramater and a second paramater obtained by irreversiby converting the first paramater

Publication Date: 2026.03.24 SEIKO EPSON CORP

AI summary

An information management method according to an aspect of the present disclosure includes disclosing, by a computer, a second parameter obtained by irreversibly converting a first parameter and disclosing, by the computer, the first parameter simultaneously with disclosing the second parameter or after disclosing the second parameter.