Video Call to Audio Switch via Camera Lens Shading
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing communication systems lack a straightforward method to seamlessly transition from a video call to an audio call while maintaining ongoing communication, particularly in security monitoring systems where visual privacy may be needed without interrupting the audio connection.
Innovation Solution
A method and apparatus that allow a user to switch a video call to an audio call by detecting a change in the luminance parameter of the camera input, such as shading the camera with a hand, using local circuitry and software to terminate the video portion while preserving the audio connection, and providing a button or keypad option to revert back to video mode.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of stationary object
If a user wants to maintain audio communication while needing visual privacy during a video call, then audio continuity is improved, but video privacy control becomes necessary
Solution Approach 1:
The patent separates the video call into independent audio and video components. The audio call continues uninterrupted while the video component can be independently controlled through lens cover detection, allowing users to maintain audio communication while preventing visual exposure by covering the camera lens.
Solution Approach 2:
The patent introduces a lens cover as an intermediary physical object that blocks the camera lens. This simple mechanical intermediary allows the user to control video visibility without affecting the audio connection, providing an intuitive and immediate way to maintain privacy while keeping communication active.
2Adaptability or versatility
If existing systems require complex operations to switch from video to audio call, then functionality is complete, but ease of operation deteriorates
Solution Approach 1:
The patent enables the system to automatically detect when the lens is covered and autonomously switch from video call mode to audio call mode. This self-service approach eliminates the need for users to manually navigate menus or press buttons, making the operation as simple as physically covering the lens with a hand or object.
Solution Approach 2:
The patent replaces complex manual control systems with an automated optical detection system. Instead of requiring users to interact with software interfaces, the system uses image processing to detect lens coverage and automatically transitions between call modes, substituting mechanical user actions with automated sensor-based control.
3Measurement precision
If manual controls are provided for switching call modes, then precision of control is improved, but device complexity increases
Solution Approach 1:
The patent extracts the control function from complex manual interfaces and embeds it directly in the optical path. By using the lens cover detection mechanism itself as the control trigger, the system eliminates the need for separate control buttons, menus, or interfaces, reducing device complexity while maintaining precise control through automated detection.
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
Enables quick and convenient conversion from video to audio calls, ensuring continuous communication while maintaining user privacy and flexibility in security monitoring systems, without requiring complex operations or equipment changes.
Implementation Method 1
A method and apparatus that allow a user to switch a video call to an audio call by detecting a change in the luminance parameter of the camera input
Data Source
Figure 1
Figure 2A
Figure 2B
AI summary
An apparatus and method to control transmission of a sequence of a video call or communication. An individual participating in a video call or communication can shade a video input port of a camera to switch from a video call or communication to an audio only call or communication. A control element can be provided to reinstate transmission of the video component of the call or communication.