Remote Storage DVR Bitrate Segmentation
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Solution Overview
Problem
Traditional digital video recorders (DVRs) are limited in their ability to provide reliable digital media content over varying network conditions and congestion, especially when supporting multiple bitrates, which can lead to inefficiencies and service disruptions.
Innovation Solution
A remote storage digital video recorder (RS-DVR) system that includes a network interface, a file system module, and a storage architecture to manage and store encoded media segments at multiple bitrates, allowing for distributed storage and playback across multiple memory devices, ensuring real-time delivery and adaptive bitrate support.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional DVRs are used with single bitrate storage, then device complexity is reduced, but reliability of content delivery under network congestion deteriorates
Solution Approach 1:
The patent segments media content into multiple bitrate versions (e.g., high, medium, low quality streams) and stores them separately in the storage architecture. This segmentation allows the system to select appropriate bitrate segments based on network conditions, improving content delivery reliability while managing storage complexity through organized segmentation of content assets.
2Adaptability or versatility
If multiple bitrate versions are stored for each content asset, then adaptability to network conditions is improved, but storage space consumption increases
Solution Approach 1:
The storage architecture is designed with universal storage pools that can accommodate multiple bitrate versions of content assets. The system provides multi-functionality by allowing the same storage infrastructure to serve different bitrate requirements dynamically, enabling adaptability to various network conditions without requiring separate dedicated storage systems for each bitrate.
3Reliability
If real-time delivery is maintained under network congestion, then service continuity is improved, but system resource consumption increases
Solution Approach 1:
The patent implements dynamic bitrate adaptation where the system continuously monitors network conditions and dynamically selects the appropriate bitrate version for content delivery. This dynamic approach allows the system to maintain service continuity by switching to lower bitrate versions during congestion while consuming fewer system resources, compared to maintaining constant high-bitrate delivery regardless of network conditions.
Data Source
AI summary
A remote storage digital video recorder (RS-DVR) system is disclosed. The RS-DVR system includes a network interface to communicate data between the RS-DVR system and a subscriber system via a network, a file system module coupled to the network interface, an ingest agent coupled to the file system module to receive encoded media segments that represent media content files encoded at a plurality of different bitrates; and a storage architecture coupled to the file system to store the encoded media segments, resulting in stored media segments. The RS-DVR carries out a number of functions and operations to service multiple subscribers and associated subscriber systems, such as various storage device management operations, file structure techniques, assignment of recorded media to subscribers, file system indexing, and supporting shared and per-subscriber content rights.