Wireless AV Transmission Format Adaptation
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Solution Overview
Problem
Existing wireless AV transmission methods experience image breakdown and black screens due to channel environment changes, leading to reduced immersive watching experiences, as they require format changes that interrupt video and cause loss of signal.
Innovation Solution
An algorithm adjusts data transmission rate by varying AV format using a lookup table (LUT) based on channel environment conditions, including SNR and BER, to dynamically adjust modulation index, code rate, and output level, ensuring seamless video playback.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If AV format is changed to adapt to channel environment, then image quality is improved, but video interruption occurs causing black screen or still picture
Solution Approach 1:
The patent applies preliminary action by preparing multiple AV format configurations in advance within a lookup table (LUT) structure, containing pre-defined resolution, refresh rate, color depth, and color format combinations. When channel conditions change, the system can immediately switch to a pre-prepared configuration without real-time calculation delays, thus maintaining video continuity while adapting image quality to channel environment.
Solution Approach 2:
The patent implements dynamics by making the AV format parameters dynamic and adjustable based on real-time channel conditions. The system continuously monitors channel environment and dynamically selects appropriate AV formats from the LUT, adjusting resolution, refresh rate, color depth, and color format to match current transmission conditions, thereby maintaining reliable image quality without fixed static settings.
2Reliability
If data transmission rate is increased to improve video quality, then image quality is improved, but interference in neighboring channels increases
Solution Approach 1:
The patent applies parameter changes by systematically varying multiple AV format parameters (resolution, refresh rate, color depth, color format) in combination to achieve different data transmission rates. The LUT stores pre-configured parameter combinations that provide different transmission rates, allowing the system to select appropriate parameters based on channel conditions and interference levels, thus improving video quality while controlling interference through parameter optimization.
Data Source
AI summary
Disclosed is method of transmitting wireless variable AV according to channel environment, the AV format, code rate, and modulation index based on the lookup table according to the data rate. The modulation index, AV format, code rate, and output level may be adjusted step by step based on an SNR and/or a BER to provide a high quality image according to a channel environment.