Content Fingerprinting via Intermediate Digests

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Solution Overview

Problem

Content owners are reluctant to send their original content to content aggregators for analysis, and existing methods require creating multiple fingerprints for each aggregator, increasing the burden on content owners.

Innovation Solution

A system where content owners store fingerprints and associated information on their end, allowing content aggregators to check against their databases without requiring the original content, using an intermediate digest or obfuscated form that can be transformed into fingerprints using proprietary algorithms, minimizing the need for multiple fingerprint creations.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If content owners send their original content to content aggregators for analysis, then the content aggregators can perform accurate fingerprinting and detection, but the content owners lose control over their content and face security risks

Engineering Contradiction:

Improvefingerprinting accuracyVSAvoidcontent security risk

Core Design Contradiction:

Measurement precisionVSObject-affected harmful factors

Solution Approach 1:

The patent extracts only the essential fingerprint data from the original content without requiring the content owner to send the complete original content. The content aggregator performs fingerprinting locally by receiving only the extracted fingerprint features, thereby maintaining content security while enabling accurate detection.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The patent introduces an intermediary fingerprint representation that acts as a mediator between the content owner and content aggregator. Instead of direct content sharing, the fingerprint serves as an intermediate data structure that enables detection without exposing the original content, resolving the security-accuracy contradiction.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Adaptability or versatility

If content owners create multiple fingerprints according to different aggregator processes, then each aggregator can perform detection, but the complexity and burden on content owners increases

Engineering Contradiction:

Improvecompatibility with multiple aggregatorsVSAvoidfingerprint creation burden

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent creates a universal fingerprint representation that can be used across multiple content aggregators. Instead of creating separate fingerprints for each aggregator, the system generates a single fingerprint structure that can be adapted to different detection processes, reducing the burden on content owners while maintaining compatibility.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

Instead of requiring content owners to adapt to multiple aggregator-specific fingerprinting processes, the patent inverts the approach by having aggregators adapt to a standardized fingerprint representation. This reversal reduces the complexity for content owners while maintaining versatility across different platforms.

Inventive Principle:

Principle #13The other way round (Inversion)

Data Source

PatentUS8752185B2Method for media fingerprinting

Publication Date: 2014.06.10 VERIZON PATENT & LICENSING INC

AI summary

A method of checking whether a content aggregator's content matches a content owner's content involves generating a fingerprint of the content and looking for a matching fingerprint from the content owner through a service provided by the content owner. In one aspect, the fingerprints are generated from an intermediate digest of the content instead of the original form.