Visual Identifier Encoding for Electronic Display Verification

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Solution Overview

Problem

Electronic displays used for advertising and informational purposes face issues with performance degradation or sudden failure, leading to revenue loss and critical information disruption, necessitating a method to monitor and verify display performance and security.

Innovation Solution

A unique identifier is encoded and displayed simultaneously with video/image content, measured by a light sensor, and decoded to confirm display presence and integrity, ensuring unauthorized content is prevented and performance data is collected for analysis.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If a light sensor is placed in front of the electronic display to monitor performance, then measurement precision is improved, but device complexity increases

Engineering Contradiction:
Improvedisplay performance monitoringVSAvoidsystem structure
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

A light sensor is introduced as an intermediary device to measure the actual performance characteristics of the electronic display. The sensor captures optical output data that reflects display performance, enabling indirect monitoring without directly interfering with the display's internal operations.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent replaces complex internal display diagnostics with a simpler optical measurement approach. Instead of monitoring electrical signals or internal components, the system uses optical sensing to infer display performance, substituting mechanical/electrical complexity with optical measurement simplicity.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Reliability

If unique identifiers are encoded and displayed with video content, then reliability is improved through verification, but manufacturing precision is worsened due to encoding requirements

Engineering Contradiction:
Improvecontent verificationVSAvoididentifier encoding
Core Design Contradiction:
ReliabilityVSManufacturing precision

Solution Approach 1:

Unique identifiers are encoded into video content beforehand, before the content is displayed. This preliminary encoding ensures that verification data is already embedded in the content stream, allowing reliable tracking and authentication without requiring complex real-time processing during display operation.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The unique identifier is embedded as a copy within the video content itself. Rather than requiring separate verification systems, the authentication data is replicated within the content stream, allowing the display system to verify content integrity by reading the embedded copy of the identifier.

Inventive Principle:
Principle #26Copying

3Loss of information

If performance monitoring and security verification are implemented, then loss of information is reduced, but device complexity increases

Engineering Contradiction:
Improveadvertising exposure trackingVSAvoidmonitoring system
Core Design Contradiction:
Loss of informationVSDevice complexity

Solution Approach 1:

The patent combines multiple functions into a unified system: the light sensor simultaneously monitors display performance characteristics and captures verification data for content authentication. The same optical measurement process serves dual purposes, eliminating the need for separate monitoring and verification systems.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The monitoring system is designed with multi-functionality, where the light sensor and data processing apparatus serve multiple purposes: measuring display performance parameters, verifying content authenticity through unique identifiers, and tracking advertising exposure. This universal approach reduces overall system complexity compared to having separate dedicated systems for each function.

Inventive Principle:
Principle #6Universality (Multi-functionality)

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 solution provides confirmation of display content and performance, ensures security against unauthorized content, and allows for real-time monitoring and analysis of display failures, enabling precise billing and maintenance notifications.

Implementation Method 1

a light sensor placed in front of an electronic display to monitor actual display performance

Methodology Applied
Scientific EffectPhotoelectric Effect: Photoelectric Effect

Data Source

PatentUS8441574B2Visual identifier for images on an electronic display
Publication Date: 2013.05.14 MANUFACTURING RESOURCES INTERNATIONAL INC
  • US8441574B2 patent drawing
  • US8441574B2 patent drawing
  • US8441574B2 patent drawing

AI summary

A system and method for displaying images or video on an electronic display. A unique identifier may be embedded within the frames of images or video and detected by a light sensor. The data from the light sensor is analyzed to determine if the proper image or video was actually shown at the display. Some embodiments analyze the data from the light sensor in real time and may stop displaying the image or video if the data is not in the format of a unique identifier. Using this embodiment, the system can prevent unintended images or video from being shown on the display.