Dual-Link Audio Transport for Low-Latency TV Synchronization
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Solution Overview
Problem
Existing wireless audio systems face challenges in achieving low latency due to high computational costs, which can lead to incompatibility with low latency televisions and poor audio-video synchronization.
Innovation Solution
A method of audio transmission that utilizes forward and reverse links for transmitting source and microphone audio data, adjusting link schedules, physical and network coding, and source coding based on network quality and presentation delays to optimize latency and robustness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If techniques in the art are used to reduce latency, then latency is reduced, but computational resources required become excessively high
Solution Approach 1:
The patent segments the audio data transmission into multiple channels (forward link for source audio, reverse link for microphone audio) with different latency requirements. This allows selective optimization where critical audio paths use low-latency techniques while less critical paths use more efficient compression, reducing overall computational burden while maintaining low latency for time-sensitive audio streams
Solution Approach 2:
The patent applies different quality levels and processing techniques to different audio channels based on their specific requirements. Source audio transmitted via forward link receives optimized processing for low latency, while microphone audio via reverse link uses adaptive processing based on network conditions, allowing computational resources to be allocated efficiently to where they are most needed
2Device complexity
If high latency audio system is used, then computational requirements are reduced, but compatibility with low latency televisions is lost
Solution Approach 1:
The patent implements dynamic adaptation where the audio system adjusts its latency and processing characteristics based on the connected television's requirements. The system can operate in low-latency mode for modern TVs or adjust to higher latency for older models, while maintaining optimized computational processing through adaptive parameter adjustment rather than fixed high-complexity processing
Solution Approach 2:
The patent creates a universal audio transmission system that can interface with both low latency and high latency televisions through a single platform. The dual-link architecture (forward and reverse links) provides multiple transmission paths that can be selectively activated or adjusted based on the connected device's capabilities, ensuring broad compatibility without requiring separate systems
Data Source
AI summary
The present disclosure provides for novel systems and methods of audio transmission that alleviate shortcomings in the art, and provide novel mechanisms for robust and scalable audio transmission. In some embodiments, a method of audio transmission may transmit source audio data through a forward link while receiving microphone audio data from a receiver via a reverse link.