OLED Privacy Shield Sensor Saturation for IHS Camera Security

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Solution Overview

Problem

Computer cameras are vulnerable to hijacking, allowing unauthorized access and capture of sensitive information, with existing security measures being crude and reliant on user intervention.

Innovation Solution

A privacy shield with an OLED film configured to emit light and a circular aperture is deployed in front of the camera lens, saturating the image sensor to prevent meaningful data from being discerned, and can be integrated into various Information Handling Systems, with the light source providing a visual indication of the security feature's status.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a privacy shield with light-emitting film is deployed in front of the camera lens, then the camera sensor is saturated and meaningful data cannot be discerned, but the device complexity increases

Engineering Contradiction:
Improvecamera securityVSAvoidprivacy shield structure
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent combines multiple functions into a single privacy shield component: the light-emitting film serves both as a visual indicator and as a sensor saturator, the circular aperture simultaneously defines the field of view and positions the shield relative to the lens, and the entire assembly integrates with the camera housing. This merging reduces overall system complexity despite adding security functionality.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The privacy shield acts as an intermediary element positioned between the camera lens and the external environment. It mediates the conflict between security requirements and device simplicity by providing a modular component that can be integrated without fundamentally redesigning the camera system architecture.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Ease of operation

If the privacy shield is automatically controlled based on settings or location, then user intervention is eliminated, but the device complexity increases

Engineering Contradiction:
Improveprivacy shield controlVSAvoidcontrol system
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The privacy shield system incorporates automatic control capabilities that allow it to service itself based on pre-configured settings or detected location. The shield can activate or deactivate without user intervention, using sensors or communication modules to determine when privacy protection is needed, thereby eliminating the need for manual operation.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system allows users to pre-configure privacy settings or location-based triggers in advance. When conditions match the pre-set parameters, the privacy shield automatically activates. This preliminary configuration approach reduces the need for complex real-time decision-making logic during operation.

Inventive Principle:
Principle #10Preliminary action

3Reliability

If the light is configured to saturate the image sensor, then usable information is prevented from being captured, but the illumination intensity required increases energy consumption

Engineering Contradiction:
Improveinformation securityVSAvoidlight emission energy
Core Design Contradiction:
ReliabilityVSUse of energy by moving object

Solution Approach 1:

The privacy shield uses excessive action by emitting light at intensities that exceed the minimum needed for visual indication, deliberately saturating the sensor to ensure complete prevention of image capture. This approach prioritizes security effectiveness over energy efficiency, using more energy than strictly necessary to guarantee sensor saturation.

Inventive Principle:
Principle #16Partial or excessive action

Solution Approach 2:

The system dynamically adjusts the light emission parameters (intensity, duration) based on operational conditions. The light-emitting film can vary its brightness and activation time to achieve sensor saturation while optimizing energy consumption, changing parameters such as luminance and pulse width to balance security requirements with power usage.

Inventive Principle:
Principle #35Parameter changes

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

The privacy shield effectively prevents hackers from obtaining usable information by saturating the camera sensor, ensuring security without user intervention, and can be automatically controlled based on settings or location, protecting sensitive information from unauthorized access.

Implementation Method 1

The film may include an organic light emitting diode (OLED) film

Methodology Applied
Scientific EffectOrganic light emitting diode (OLED): Organic Light-emitting Diode

Implementation Method 2

The light may be configured to saturate an image sensor deployed behind the lens

Methodology Applied
Scientific EffectLight saturation: Absorption (EM radiation)

Data Source

PatentUS11657186B2Privacy shield design and placement in an information handling system (IHS)
Publication Date: 2023.05.23 DELL PROD LP
  • US11657186B2 patent drawing
  • US11657186B2 patent drawing
  • US11657186B2 patent drawing

AI summary

Embodiments of systems and methods for privacy shield design and placement in an Information Handling System (IHS) are described. In some embodiments, a privacy shield may include a film configured to emit light and a circular aperture in the film, such that the privacy shield is configured to be deployed in front of a lens of a camera coupled to an IHS.