Video Interface Arbitrary Data Scrambler for Non-Video Transmission
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Solution Overview
Problem
Conventional video transcoders are limited by their reliance on personal computer platforms, requiring large secondary storage and supporting only a limited number of coding formats, which restricts their ability to efficiently transcode video in real-time to accommodate diverse video rendering devices with varying standards.
Innovation Solution
A system and method that utilizes a video transcoder with a video decoder and encoder, capable of real-time transcoding from a single master copy, transferring video data with a lower chroma subsampling ratio through a video interface, and incorporating an arbitrary data scrambler to transmit non-video data without information loss, thereby supporting any number of video coding formats and standards.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional video transcoders use personal computer platforms with large secondary storage, then they can support multiple coding formats, but the device complexity and storage requirements increase significantly
Solution Approach 1:
The video interface is designed to perform multiple functions: it simultaneously transmits video data and carries non-video data (such as control signals, timing information, and auxiliary data) through the same physical medium. This multi-functionality eliminates the need for separate storage and data transmission components, reducing device complexity while maintaining support for multiple coding formats through software-based transcoding capabilities
2Quantity of substance
If video data with lower chroma subsampling ratio is transmitted, then bandwidth is freed for non-video data, but video quality may be reduced
Solution Approach 1:
The system dynamically adjusts the chroma subsampling ratio parameter based on the specific transmission requirements and device capabilities. By optimizing this parameter, the system frees up bandwidth for non-video data transmission while maintaining video quality within acceptable ranges for the target rendering devices. The video transcoder adapts the chroma subsampling level to balance bandwidth availability and quality preservation
3Ease of operation
If non-video data is transmitted without scrambling, then transmission is simpler, but video timing reference values may be corrupted or misinterpreted
Solution Approach 1:
A scrambling function acts as an intermediary transformation layer between the non-video data and the video interface transmission medium. This scrambling process transforms the data into a format that prevents interference with video timing reference values while maintaining the integrity and recoverability of the original non-video data. The scrambling function ensures reliable transmission by preventing data conflicts without significantly complicating the transmission process
Data Source
AI summary
A video system includes a first video device. The first video device includes a video output port and an arbitrary data scrambler. The first video device transmits a video stream through the video output port. The video output port is configured to insert video timing reference values into the video stream. The arbitrary data scrambler is configured to scramble non-video data for transmission in the video stream such that unscrambled non-video data containing video timing reference values is transformed, without information loss, to scrambled non-video data containing no video timing reference values.