IP Packet Format Conversion with Priority Information
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Solution Overview
Problem
Current digital broadcast technologies, such as MPEG-2 TS, are inefficient for transmitting high-resolution multimedia content over IP networks, particularly for applications like stereo 3D video, Ultra High Definition, and hologram broadcasts, due to their fixed packet length and inability to effectively prioritize data.
Innovation Solution
A method and device for converting content between file and delivery formats, incorporating priority information to manage data playback, allowing for efficient transmission and storage of multimedia content over IP networks by using IP packets, with formats designed for protocol-transparent transmission and storage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If MPEG-2 TS with fixed 188 byte packet length is used for transmission, then compatibility with existing broadcast systems is maintained, but transmission efficiency for high-resolution contents is poor
Solution Approach 1:
The patent segments the content data into multiple packets with variable lengths, allowing flexible adaptation to different content types and transmission requirements. This enables efficient transmission of high-resolution contents while maintaining compatibility through standard IP packet structures.
Solution Approach 2:
The patent introduces dynamic packet length adjustment based on content characteristics and transmission conditions. The system can adapt packet sizes dynamically to optimize transmission efficiency for different resolutions and content types, transitioning from fixed to dynamic packet length.
2Device complexity
If fixed packet length is used for transmission, then protocol simplicity is maintained, but ability to prioritize data for playback is limited
Solution Approach 1:
The patent applies local quality by assigning different priorities to different data packets within the same transmission stream. Each packet can have its own priority level, allowing critical data to be prioritized for playback while maintaining overall protocol simplicity.
Solution Approach 2:
The patent introduces priority information as an intermediary element within the packet structure. This intermediary carries priority data that enables the receiving system to differentiate and prioritize packets without fundamentally complicating the transmission protocol.
3Device complexity
If contents are transmitted without priority information, then transmission format simplicity is maintained, but playback configuration effectiveness is reduced
Solution Approach 1:
The patent applies preliminary action by embedding priority information directly into the transmission format before data is sent. This pre-configured priority data enables effective playback configuration without requiring complex post-transmission processing or additional configuration steps.
Data Source
AI summary
The present invention relates to a method for transmitting/receiving contents through a network such as the Internet, and to a transmitter/receiver using same, the transmission method comprising: converting content stored in a file format into a delivery format; and transmitting the content converted into the delivery format using an IP packet, wherein the file format and/or the delivery format includes priority information for expressing whether data that makes up the content is played back in default.