Camera Aperture Blade Control for Unauthorized Image Prevention
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Solution Overview
Problem
Electronic devices with camera modules are prone to capturing unintended images due to unauthorized access or accidental operations, leading to security breaches and operability issues, as existing manual shield mechanisms require additional operations and can be forgotten, resulting in unintended image capture.
Innovation Solution
An electronic device with a camera module that includes a blade to open or close the lens aperture, driven by an actuator and controlled by a controller, which receives signals from a switch to automatically manage the aperture's state based on camera function activation or deactivation, eliminating the need for additional user operations and ensuring the aperture is closed when not in use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a manually operated shield is used to cover the lens aperture when the camera is unused, then security against unauthorized image capturing is improved, but operability deteriorates due to additional manual operations required
Solution Approach 1:
The shield operation is merged with the camera function activation/deactivation process. The same actuator that opens/closes the lens aperture also opens/closes the shield, eliminating the need for separate manual operations. When the camera function is activated or deactivated, the shield automatically opens or closes along with the aperture, resolving the contradiction between security and operability.
2Ease of operation
If the lens aperture is kept constantly uncovered, then operability is improved, but security deteriorates due to risk of unauthorized or accidental image capturing
Solution Approach 1:
The shield is positioned to cover the lens aperture in advance before the camera function is activated. This preliminary covering action prevents unauthorized or accidental image capturing while maintaining readiness for quick operation. The shield opens automatically when the camera function is activated, ensuring security is maintained without compromising operational readiness.
3Ease of operation
If a shield is automatically opened/closed with camera function activation/deactivation, then operability is improved by eliminating additional operations, but security deteriorates as the shield may open in response to unintended activation
Solution Approach 1:
The system uses feedback from the camera function activation state to control the shield position. The controller monitors whether the camera function is activated or deactivated and automatically adjusts the shield position accordingly. This feedback mechanism ensures the shield opens only when the camera function is properly activated, maintaining security while improving operability by eliminating manual operations.
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 reduces unintended image capture by automatically managing the lens aperture's state, enhancing operability and preventing unauthorized image capture, thus improving security and user experience in IoT environments.
Implementation Method 1
a blade drive that drives an actuator to open or close the blade
Data Source
AI summary
A technique reduces images unintended by the user captured with an electronic device by, for example, unauthorized access or an accidental operation performed by the user. An electronic device includes a camera module including a camera drive that activates or deactivates a camera function, a blade that opens or closes a lens aperture in the camera module, a blade drive that drives an actuator to open or close the blade, a controller that controls the camera drive and the blade drive, and a switch that transmits, to the controller, an opening signal or a closing signal for forcibly driving the blade drive independently of the camera drive. The controller activates the camera function in the camera drive in response to the opening signal transmitted from the switch.