Stereo Audio Link Switching for Wireless Earbud Disconnection
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Solution Overview
Problem
Electronic devices experience communication deterioration or disconnection with external devices due to physical obstacles or radio interference, leading to audio output issues and excessive power consumption.
Innovation Solution
An electronic device establishes independent communication links with multiple external devices and switches audio data transmission to a functioning link upon identifying communication deterioration or removal of one device, ensuring stereo audio output through the remaining link.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the electronic device transmits audio data to multiple external devices through independent communication links, then stereo audio output capability is improved, but power consumption increases when communication deterioration occurs
Solution Approach 1:
The system dynamically switches audio transmission mode between stereo (dual device) and mono (single device) based on real-time communication quality detection. When communication deterioration is detected in one link, the system automatically transitions from transmitting to both devices to transmitting only to the functioning device, adapting the transmission strategy to current conditions.
Solution Approach 2:
The electronic device continuously monitors communication quality through feedback from external devices (connection status, signal strength, packet loss rates). This feedback mechanism enables the system to detect communication deterioration and trigger the appropriate response by switching transmission mode, ensuring optimal power efficiency while maintaining audio output quality.
2Reliability
If the electronic device continues transmitting audio data to an external device with deteriorated communication link, then communication reliability is maintained, but audio output quality deteriorates due to buffer underrun or overflow
Solution Approach 1:
The system uses real-time feedback from external devices regarding connection status and communication quality to detect deterioration. When feedback indicates poor communication quality, the system responds by stopping transmission to the affected device, preventing buffer underrun or overflow conditions that would degrade audio output quality.
Solution Approach 2:
The system performs preliminary detection of communication quality through monitoring connection status and signal strength before audio data transmission issues occur. By detecting communication deterioration early, the system can proactively switch transmission mode to prevent buffer underrun or overflow, maintaining audio output quality.
3Reliability
If the electronic device establishes independent communication links with multiple external devices, then audio transmission redundancy is improved, but device complexity increases
Solution Approach 1:
The system segments audio data transmission into separate independent communication channels, each dedicated to a specific external device. This segmentation allows the electronic device to manage multiple communication links independently, establishing redundancy for improved reliability while maintaining manageable complexity through clear separation of transmission paths.
Data Source
AI summary
An electronic device may include: a communication module supporting wireless communication; and a processor. The processor may be configured to: establish, through the communication module, a first communication link with a first external electronic device, and a second communication link with a second external electronic device; acquire first audio data and second audio data on the basis of a command for outputting stereo audio; transmit the first audio data to the first external electronic device by using the first communication link, and transmit the second audio data to the second external electronic device by using the second communication link; and in response to identification of at least one of a communication deterioration in the second external electronic device, releasing of a connection, and releasing of wearing by a user, transmit the first audio data and the second audio data to the first external electronic device by using the first communication link so that the first external electronic device transmits the second audio data to the second external electronic device.


