Display Device Audio Management for Screen Projection
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Solution Overview
Problem
In scenarios where multiple screen projection terminals project multimedia to the same display device, the simultaneous playback of audio from all terminals results in sound chaos, affecting user experience due to overlapping sounds.
Innovation Solution
A method where only one audio from the multiple screen projection terminals is played by the display device, with the remaining terminals playing their audio locally, and the display device feeds back play state information to the terminals to manage audio playback modes, allowing users to switch between audio sources based on user preferences.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple screen projection terminals simultaneously project audio to the same display device, then the audio playback capability is comprehensive, but sound chaos occurs affecting user experience
Solution Approach 1:
The display device feeds back play state information to the screen projection terminals, enabling dynamic adjustment of audio playback modes. This feedback mechanism allows the system to automatically manage audio sources, preventing sound chaos while maintaining comprehensive playback capability through coordinated control.
Solution Approach 2:
The patent implements dynamic audio playback modes where terminals can switch between playing audio through the display device or playing locally based on real-time conditions. This dynamic adjustment resolves the contradiction by adapting the audio playback strategy to current system state, preventing sound chaos while preserving playback versatility.
2Ease of operation
If all screen projection terminals play audio through the display device, then centralized audio control is achieved, but audio overlap and interference occur
Solution Approach 1:
The patent segments the audio playback function by allowing different terminals to operate in different modes: some play through the display device while others play locally. This segmentation prevents audio overlap by ensuring only one terminal outputs audio through the display device at a time, while maintaining centralized control through the feedback mechanism.
Solution Approach 2:
Instead of forcing all terminals to play through the display device, the patent inverts the approach by allowing terminals to play locally when appropriate. This inversion resolves the audio overlap problem while maintaining ease of operation through automatic mode selection based on feedback information.
3Object-affected harmful factors
If screen projection terminals play audio locally, then audio interference is avoided, but user interaction and convenience are reduced
Solution Approach 1:
The system implements self-service through automatic audio mode selection. The display device automatically determines which terminal should play audio through it based on feedback information, eliminating the need for manual user configuration. This self-service mechanism avoids audio interference while maintaining user convenience through automated decision-making.
Solution Approach 2:
The feedback mechanism enables the system to automatically adjust audio playback modes without requiring continuous user input. By receiving play state information and autonomously managing audio sources, the system avoids audio interference while preserving ease of operation through intelligent automation.
4Stability of the object's composition
If the display device manages audio playback for all terminals, then audio consistency is maintained, but system complexity increases
Solution Approach 1:
The feedback mechanism provides a simple yet effective way to maintain audio consistency without complex management systems. By continuously receiving play state information and automatically adjusting audio sources, the display device maintains audio consistency through a relatively simple feedback-loop architecture rather than complex centralized control.
Solution Approach 2:
The system maintains audio consistency through self-service mechanisms where terminals automatically adjust their playback modes based on feedback information. This self-service approach reduces system complexity by distributing the management burden to individual terminals rather than requiring a complex centralized audio management system.
Data Source
AI summary
A method for projecting a screen includes: receiving multimedia screen projection information of a plurality of screen projection terminals; displaying an image of multimedia projected by the plurality of screen projection terminals based on the multimedia screen projection information, and simultaneously playing an audio of the multimedia projected by at most one screen projection terminal; and feeding play state information of the audio of the multimedia projected by the screen projection terminal back to each of the screen projection terminals, such that the screen projection terminal enters a corresponding audio play mode.