Dual-Standard Wireless Audio Switching for Packet Error Recovery
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Solution Overview
Problem
Existing wireless audio systems face challenges in distinguishing between signal data and audio data in complex wireless environments, particularly with communication standards like WLAN and ultra-wideband UWB, and struggle to seamlessly switch audio services between multiple communication standards.
Innovation Solution
A wireless audio system incorporating first and second communication modules operating on different frequency bands, allowing seamless switching of audio services by adjusting output based on packet error rates and utilizing sequence numbers for synchronized signal processing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single communication standard is used for wireless audio transmission, then the system is simple to operate, but it cannot adapt to complex wireless environments with high packet error rates
Solution Approach 1:
The wireless audio system incorporates multiple communication modules supporting different communication standards (first communication standard and second communication standard) within a single device. The system can selectively activate appropriate modules based on environmental conditions, making the device universally adaptable to various wireless environments while maintaining operational simplicity through automated selection logic.
2Reliability
If multiple communication standards are supported, then the system can adapt to complex wireless environments, but it becomes difficult to distinguish between signal data and audio data
Solution Approach 1:
The system segments the audio transmission process by dedicating specific communication modules to specific communication standards. Each module is configured to handle particular types of data traffic according to its protocol characteristics. This segmentation allows the system to clearly distinguish between signal data and audio data by routing them through appropriate modules, thereby maintaining reliable audio reception even when multiple standards are supported.
3Reliability
If seamless switching between communication standards is implemented, then audio service continuity is maintained, but the switching process requires complex coordination between modules
Solution Approach 1:
The system implements dynamic switching between communication standards based on real-time monitoring of packet error rates and environmental conditions. The switching mechanism is designed to be triggered automatically when predefined thresholds are exceeded, allowing seamless transition between standards without requiring complex manual coordination. The dynamic nature of the switching ensures audio service continuity while keeping the control logic manageable through event-driven architecture.
Data Source
AI summary
A wireless audio receiving device, a wireless audio transmitting device, and a wireless audio output system including the same are disclosed. The wireless audio transmitting device includes a first communication module, a second communication module, and a sound output device, wherein the sound output device is configured to output a first sound, based on the first audio signal from the first communication module, during a first period, output a second sound, based on the audio signal from the first or the second communication module, during a second period, in response to a packet error rate of the first audio signal being equal to or higher than a predetermined value, and output a third sound, based on the audio signal from the second communication module, during a third period. Accordingly, it is possible to seamlessly switch audio service through the first and second communication modules of different communication standards.