VLC Interference Signal for Selective Recording Blocking

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Solution Overview

Problem

Current methods fail to effectively prevent unauthorized recording of copyrighted or restricted materials at events, as users can easily record such content using cameras or mobile devices, with no efficient system to differentiate between authorized and unauthorized recording.

Innovation Solution

A method utilizing a pulsed pattern image capture interference signal from a Restricted Materials Protection System (RMPS) synchronizes with recording devices to enable image capture of non-restricted areas while disabling recording of restricted portions, employing dynamic image processing and modified Visual Light Communication (VLC) systems to identify and block restricted materials.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a physical approach is used to prevent recording (asking users to stop or confiscating devices), then unauthorized recording is prevented, but user convenience and ease of operation deteriorate

Engineering Contradiction:
Improveprevention of unauthorized recordingVSAvoiduser convenience
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The patent replaces physical enforcement mechanisms (security personnel, device confiscation) with an automated optical system using VLC signals and image processing to automatically detect and block restricted material recording, thereby maintaining reliability while improving ease of operation

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

Solution Approach 2:

The system enables recording devices to automatically identify and block restricted material through integrated VLC reception and image processing capabilities, allowing the system to self-regulate recording permissions without requiring external physical intervention

Inventive Principle:
Principle #25Self-service

2Adaptability or versatility

If specialized software is installed to allow recording of non-restricted material, then authorized recording is enabled, but device complexity and ease of manufacture worsen

Engineering Contradiction:
Improveability to record non-restricted materialVSAvoidsoftware installation requirement
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent makes the recording device universally adaptable by integrating VLC signal reception and image processing capabilities into the device itself, allowing it to automatically distinguish between restricted and non-restricted material without requiring user installation of specialized software, thus maintaining adaptability while reducing device complexity

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

3Manufacturing precision

If the shutter is adjusted to record without interference from infrared or pulse pattern signals, then recording quality improves, but device complexity increases

Engineering Contradiction:
Improverecording qualityVSAvoidshutter synchronization mechanism
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The patent employs feedback by having the recording device receive VLC signals that contain information about restricted material locations and timing, then uses this feedback to automatically adjust the shutter timing through image processing algorithms, improving recording quality while managing device complexity through software-based control

Inventive Principle:
Principle #23Feedback

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 allows authorized users to record while preventing unauthorized recording of restricted materials, ensuring that only non-restricted content is captured and recorded, effectively protecting copyrighted materials.

Implementation Method 1

employing dynamic image processing and modified Visual Light Communication (VLC) systems to identify and block restricted materials

Methodology Applied
Scientific EffectVisual Light Communication:

Implementation Method 2

synchronizing a recording device with a pulsed pattern image capture interference signal from a restricted materials protection system

Methodology Applied
Scientific EffectImage capture interference: Interference

Data Source

PatentUS10587791B2Blocking specific areas of restricted material in recording using visual light communication and image processing
Publication Date: 2020.03.10 INTERNATIONAL BUSINESS MACHINE CORPORATION
  • US10587791B2 patent drawing
  • US10587791B2 patent drawing
  • US10587791B2 patent drawing

AI summary

An approach to securing restricted materials from recording with a video recording device. The recording device synchronizes with a pulsed pattern image capture interference signal from a restricted materials protection system (RMPS) at an event venue. The recording device receives a broadcast signal from the RMPS to enable image capture for a non-restricted portion of the event venue. The recording device determines whether a recorded image contains a restricted portion of the event venue and responsive to determining that the recorded image contains the restricted portion of the event venue, disabling the recording of the restricted portion of the event venue.