Multi-Transport Stream Stuffing for Multiple Turbo Broadcast Streams
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Solution Overview
Problem
Current digital broadcasting transmission systems are limited to generating dual transport streams, which include a normal stream and one turbo stream, and cannot efficiently transmit two or more additional turbo streams simultaneously.
Innovation Solution
A multi-transport stream generating apparatus and method that incorporates an adaptor to generate an adaptation field, a turbo processor to turbo-code multiple turbo streams, and a stuffer to combine these streams into a multi-transport stream, enabling the transmission of multiple turbo streams alongside a normal stream using digital broadcasting transmission and reception apparatuses.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a dual transport stream system is used to transmit one normal stream and one turbo stream, then reception performance is improved, but the system cannot transmit two or more additional turbo streams simultaneously
Solution Approach 1:
The patent segments the transport stream into a normal stream and multiple separate turbo streams (first turbo stream, second turbo stream, etc.). Each turbo stream is processed independently through separate turbo coding paths, allowing multiple enhanced streams to coexist within the overall transmission system while maintaining individual reception performance for each.
Solution Approach 2:
The patent merges multiple turbo streams with the normal stream into a single multiplexed transport stream for transmission. The adaptation field of the normal stream is utilized to carry data from multiple turbo streams, combining the benefits of multiple enhanced streams while maintaining a unified transmission structure that can be handled by existing digital broadcasting infrastructure.
2Adaptability or versatility
If multiple turbo streams are added to the normal stream, then the system versatility is improved, but the device complexity increases
Solution Approach 1:
The patent creates a multi-functional transmission system that can handle both normal streams and multiple turbo streams through a unified architecture. The same basic components (adaptor, interleaver, turbo processor, stuffer, deinterleaver) are used repeatedly for each turbo stream, allowing the system to process any number of turbo streams without requiring fundamentally different hardware for each additional stream.
Solution Approach 2:
The patent nests multiple turbo streams within the adaptation field structure of the normal stream. The turbo streams are embedded within the existing transport stream framework, utilizing the adaptation field as a container. This nested structure allows multiple layers of data to coexist without requiring separate independent transmission channels for each stream type.
3Stability of the object's composition
If multiple turbo streams are integrated into the normal stream, then the packet structure is improved, but the processing complexity at the studio stage increases
Solution Approach 1:
The patent performs preliminary turbo coding and adaptation field generation at the studio stage before transmission. The adaptor generates the adaptation field structure in advance, and the turbo processor pre-codes all turbo streams and integrates them into the normal stream packets. This preliminary processing organizes the complex multi-stream data into a structured format that can be efficiently transmitted and later decoded without requiring complex real-time processing at the receiving end.
Data Source
AI summary
A multi-transport stream (TS) generating apparatus and method, and digital broadcasting transmission and reception apparatuses and method are provided. The multi-TS generating apparatus includes an adaptor to generate an adaptation field in some packets of a normal stream; an interleaver to interleave the normal stream; a turbo processor to turbo-code a plurality of turbo streams; a stuffer to generate a multi-TS by stuffing the plurality of the turbo streams into the adaptation field; and a deinterleaver to deinterleave the multi-TS. Accordingly, the plurality of the turbo streams can be transmitted far more easily.