Electronic Device Projection Method for Audio-Video Privacy Separation
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Solution Overview
Problem
In scenarios where users project videos from electronic devices onto public display devices, such as treadmills, there is a risk of user privacy leakage due to audio being played through the public device, leading to a poor user experience.
Innovation Solution
A method and apparatus that allow an electronic device to connect with an audio device, enabling the audio device to output synchronized audio while the electronic device projects a display image onto a display device, thus maintaining user privacy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the display device is used to play both video and audio, then the projection operation is simple and the display device can be used as a complete playback system, but user privacy may be leaked in public places and the user experience deteriorates due to noisy environment
Solution Approach 1:
The patent segments the audio and video playback functions by separating the audio output from the display device. The electronic device continues to output audio through its original audio device (speaker or headphones) while projecting video to the display device, thus dividing the playback system into independent audio and video components to avoid privacy leakage and noisy environment issues.
Solution Approach 2:
The patent extracts the audio output function from the display device and keeps it in the electronic device. By taking out the audio playback function from the public display device, the system maintains video projection capability while preventing user privacy leakage and avoiding the noisy environment of public speakers.
2Object-affected harmful factors
If the electronic device continues to output audio through its original audio device while projecting video, then user privacy is protected, but the audio and video synchronization may be affected and the system complexity increases
Solution Approach 1:
The patent implements feedback mechanisms where the electronic device monitors the projection state and audio playback state, and dynamically adjusts audio output based on these states. When video is projected to the display device, the system feedback controls the audio to continue playing through the original audio device, ensuring synchronization while maintaining privacy.
Solution Approach 2:
The electronic device maintains multi-functionality by simultaneously supporting video projection to external display devices and audio output through its original audio device. This universal design allows the device to handle both functions without requiring separate dedicated systems, reducing overall system complexity while protecting user privacy.
Data Source
AI summary
An electronic device establishes a connection to an audio device, the electronic device displays a first image, the audio device outputs audio data synchronized with the first image, the electronic device receives a projection operation, and the electronic device sends projection information of the first image to a display device based on the projection operation. The display device displays the first image based on the projection information, and the audio device outputs the audio data synchronized with the first image.