8K Video Signal Multiplexing Over 100 GbE Using SDI Segmentation
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Solution Overview
Problem
There is a need to efficiently transmit 8K or 4K video signals over 100 GbE devices, as existing technologies struggle to handle the high bandwidth and format requirements of these ultra-high-definition video standards effectively.
Innovation Solution
A signal processing apparatus that maps 8K or 4K video signals into SDI data streams, performs 8B/10B conversion and scrambling, and multiplexes them into serial data streams suitable for transmission over 100 GbE devices, utilizing multiple channels and lanes to achieve bit rates within the range of 25 Gbps to 28.3 Gbps.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If 8K or 4K video signals are transmitted using existing HD-SDI or 3G-SDI interfaces, then compatibility with existing equipment is maintained, but the transmission bandwidth and bit rate are insufficient to meet the requirements of ultra-high-definition video standards
Solution Approach 1:
The patent segments the high-bandwidth 8K/4K video signal into multiple lower-bandwidth SDI channels (64 channels for 8K, 32 channels for 4K). Each channel operates at standard SDI bit rates (1.485 Gbps for HD-SDI, 2.970 Gbps for 3G-SDI), ensuring compatibility with existing equipment while collectively providing sufficient total bandwidth for ultra-high-definition transmission.
2Quantity of substance
If multiple SDI channels are multiplexed to increase transmission bandwidth, then sufficient bandwidth for 8K/4K video is achieved, but the system complexity and processing requirements increase
Solution Approach 1:
The patent merges multiple SDI channels into a unified multiplexed stream using standardized protocols (8B/10B conversion and scrambling). This approach achieves the required transmission bandwidth by combining 64 channels for 8K or 32 channels for 4K, while maintaining manageable system complexity through the use of established communication protocols and structured multiplexing procedures.
3Quantity of substance
If the bit rate is increased to accommodate 8K or 4K video signals, then transmission capacity is improved, but compatibility with standard SDI formats and existing infrastructure is lost
Solution Approach 1:
Instead of transmitting a single high-bit-rate stream, the patent segments the video signal into multiple channels, each operating at standard SDI bit rates (1.485 Gbps or 2.970 Gbps). This segmentation allows the system to achieve the total bandwidth required for 8K/4K transmission (up to 95.04 Gbps) while maintaining full compatibility with existing SDI infrastructure and equipment.
Solution Approach 2:
The patent creates a universal transmission system that can handle both standard HD video signals and ultra-high-definition 8K/4K signals using the same SDI interface infrastructure. By designing the multiplexing system to work with standard SDI formats, the solution achieves multi-functionality, supporting a wide range of video resolutions and bit rates without requiring separate transmission systems.
Data Source
AI summary
Provided is a signal processing apparatus, including: a mapping unit configured to map one of an 8K video signal and a 4K video signal into SDI data streams on a plurality of channels, the SDI data streams on the plurality of channels each conforming to a predetermined Serial Digital Interface (SDI) format; and multiplexing units configured to perform one of 8B/10B conversion and scrambling of the SDI data streams on the plurality of channels in units of a predetermined bit, and multiplex the SDI data streams on the plurality of channels subjected to the one of the 8B/10B conversion and the scrambling, to thereby generate serial data streams in a plurality of lanes, the serial data streams in the plurality of lanes each having a bit rate within a range of from 25 Gbps to 28.3 Gbps.