Multicast Content Delivery Apparatus with Boundary Detection
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Solution Overview
Problem
Existing content delivery systems face challenges in accurately detecting the start and end points of digital content transmission over IP networks, leading to potential data loss or corruption due to delays and jitter, which can result in invalid or missing data during multicast transmission.
Innovation Solution
A content delivery apparatus that includes an analyzer to detect the start or end points of content by analyzing control information within IP packets, allowing a manager to control the reception or transmission accordingly, ensuring seamless delivery even with network delays or jitter.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multicast transmission is used to deliver content over IP network, then content can be delivered to multiple reception sides simultaneously, but data loss or corruption occurs due to network delays and jitter
Solution Approach 1:
The system performs preliminary actions by detecting start and end points of content before actual transmission occurs. The analysis unit examines control information in advance to identify precise boundaries, allowing the transmission system to prepare appropriate buffering and timing mechanisms beforehand, thus preventing data loss during multicast delivery
Solution Approach 2:
The system implements feedback mechanisms where the analysis unit continuously monitors control information during transmission to detect start and end points. This real-time feedback allows the transmission apparatus to adjust its operation dynamically, ensuring data integrity is maintained despite network delays and jitter in the multicast environment
2Adaptability or versatility
If content transmission starts or ends at arbitrary points, then transmission flexibility is improved, but data loss or corruption occurs due to network delays and jitter
Solution Approach 1:
Before transmission begins, the analysis unit performs preliminary detection of content boundaries by examining control information. This preliminary action establishes precise start and end points that the transmission system can rely on, maintaining data integrity while allowing flexible transmission scheduling and content selection
Solution Approach 2:
The system uses feedback from continuous analysis of control information during transmission to confirm start and end points. This feedback mechanism ensures that even when transmission timing is flexible or delayed, the system can identify and maintain the correct content boundaries, preventing data corruption
3Device complexity
If content boundaries are not accurately detected, then system complexity is reduced, but data loss or corruption occurs during transmission
Solution Approach 1:
The system extracts and analyzes only the essential control information from the content stream to detect start and end points. By focusing on specific control fields rather than processing entire content streams, the boundary detection function is achieved with minimal additional complexity while ensuring accurate data integrity protection
Solution Approach 2:
The analysis unit acts as an intermediary component that sits between the content source and transmission system. It performs boundary detection by examining control information without requiring complex modifications to either the source or transmission systems, thus maintaining data integrity with minimal added complexity
Data Source
AI summary
According to the present embodiment, there is provided a content delivery apparatus applied to a content delivery system which delivers content, which is sent from a transmission apparatus, to a reception apparatus by a multicast method via an IP network. The content delivery apparatus includes an analyzer configured to detect a start point or an end point of the content by analyzing control information of the content, and a manager configured to control a reception start or a reception end of the content, based on the start point or the end point.