Wireless Video Packet Timing for Sync-Stable HD Transmission
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Solution Overview
Problem
Current wireless communication systems for video data transmission face challenges in maintaining high-quality, high-bandwidth connections over long distances, especially in environments with interfering signals and varying video source clock and synchronization signals, which can affect start-of-packet detection and video frame timing.
Innovation Solution
A method and system that includes a video source transceiver with a video source interface, clock sampler, data buffer, and packet size timing logic to adjust data packet sizes based on buffer levels, using synchronization signals as frame markers, and generating timestamps for each packet to ensure accurate transmission and reception, with a video sink transceiver that regenerates synchronization signals and tracks packet sizes for decoding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If wireless transmission is used to connect video source and sink over long distances, then installation convenience and aesthetics are improved, but transmission reliability and synchronization are worsened due to interference and signal degradation
Solution Approach 1:
The system dynamically adjusts packet size timing based on real-time buffer level monitoring. The packet size timing logic modifies transmission parameters adaptively to maintain synchronization despite wireless interference and signal variations over distance, resolving the contradiction between installation convenience and transmission reliability.
Solution Approach 2:
The invention implements feedback mechanisms where the system monitors transmission quality and buffer levels, then adjusts packet timing and size accordingly. This closed-loop control ensures reliable video transmission over wireless connections even at long distances through walls, maintaining synchronization while preserving installation flexibility.
2Productivity
If adaptive packet sizing is implemented to optimize buffer management, then transmission efficiency is improved, but device complexity increases due to additional timing logic and buffer monitoring
Solution Approach 1:
The packet size timing logic serves multiple functions: it monitors buffer levels, determines optimal packet sizes, adjusts transmission timing, and maintains synchronization. By consolidating these functions into a single multi-functional component, the system achieves improved transmission efficiency without proportionally increasing device complexity.
3Manufacturing precision
If high data rates are used to transmit uncompressed HD video, then video quality is improved, but susceptibility to interference and synchronization issues worsens
Solution Approach 1:
The system dynamically adjusts packet size and timing based on buffer level monitoring to optimize transmission for high-definition video over wireless channels. This adaptive approach maintains video quality while reducing susceptibility to interference by adjusting transmission parameters in real-time according to channel conditions.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution enables reliable, high-quality wireless transmission of video data over long distances with minimal latency, adapting packet sizes to buffer levels to maintain optimal transmission rates and compensate for varying buffer conditions, thus improving the robustness of video communication systems.
Implementation Method 1
a video sink transceiver with data packet tracking logic and phase locked loops to regenerate synchronization signals and timestamps
Data Source
AI summary
Disclosed is a method, circuit and system for transmission of video data between a video source and a video sink. A video source transceiver may include: (1) a video source interface for receiving video data, optionally including one or more video synchronization signals functionally associated video source device; (2) a video source clock sampler for sampling a video clock parameter of received video data; (3) a video data buffer for buffering received video data prior to transmission; and (4) a video transmission circuit including packet size timing logic adapted to generate and transmit to a functionally associated video sink transceiver a value correlated to an expected data packet size based on video data stored in the video buffer. A video sink transceiver may include: (1) a video reception circuit adapted to receive a transmitted data packet, including one or more values generated by the packet size timing logic, and to regenerate a video frame; (2) video sync signal generation logic adapted to regenerate one or more video frame synchronization signals based on the one or more values generated by the video transmission circuit, and (3) a video sink interface for forwarding received video data, including one or more video clock and/or synchronization signals to a functionally associated video sink device.