Transmission Apparatus Priority Packet Identification
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Solution Overview
Problem
In scenarios involving both broadcasting waves and IP distribution services, the capsule layer's variable length poses challenges for rapid parsing of variable-length packets, leading to increased system response times during services like video or audio playback, especially during trick plays or random access.
Innovation Solution
A transmission device is configured to insert identification information into transmission packets, indicating priority packets, allowing for efficient handling and processing of multilayered packets, including TLV or MMT packets, to reduce response times during initial presentation and data reproduction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If variable-length capsules are used to efficiently transmit video or audio, then transmission efficiency is improved, but parsing time increases leading to longer system response time
Solution Approach 1:
The patent applies preliminary action by inserting priority identification information into packet headers before transmission. This allows the receiving end to quickly identify and prioritize critical packets (such as those containing initial presentation data or random access points) without needing to parse through entire variable-length capsules, thus reducing system response time while maintaining transmission efficiency
Solution Approach 2:
The patent segments the packet structure by adding distinct priority identification fields to packet headers. This segmentation allows the receiving system to quickly identify and process high-priority packets separately from regular packets, reducing the overall parsing time for variable-length capsules while maintaining efficient transmission
2Measurement precision
If comprehensive parsing of variable-length packets in multiple layers is performed, then accurate data recognition is achieved, but processing time increases
Solution Approach 1:
The patent extracts and prioritizes critical identification information by inserting priority flags into packet headers at multiple layers. This allows the receiving system to quickly identify and process only the necessary packets for initial presentation or random access without performing comprehensive parsing of all variable-length packets, thus reducing parsing time while maintaining accurate data recognition
Solution Approach 2:
The patent applies local quality by adding priority identification information specifically to packets that require fast processing (such as those containing initial presentation data or random access points), rather than uniformly processing all packets. This localized approach reduces overall parsing time while ensuring accurate recognition of critical data
Data Source
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AI summary
A response time until initial presentation decreases in such cases as reception of a service and reproduction of reception data after accumulation of the reception data. Identification information based on which a packet handled with priority is identifiable is inserted into each of transmission packets at the time of transmission of a transmission stream containing the transmission packets disposed successively in the transmission stream. For example, each of the transmission packets is a multilayered packet containing a multiplexed transport packet in the uppermost layer. For example, the identification information is inserted into packets in a part or all of layers of each of the multilayered packets.