Private Media Copy Mapping for Deduplicated Network DVR Storage
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Solution Overview
Problem
DVR service providers face substantial storage burdens and conflicts with content streaming approaches due to the need to maintain separate copies of recorded media content for multiple users, which is inefficient and costly.
Innovation Solution
The creation and transmission of lean private copies of media content, specific to a user account, utilizing encryption and digital rights management, with deduplicated data segments, allowing caching and efficient storage and retrieval.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate copies of recorded content are maintained for each user, then copyright compliance is achieved, but storage burden and cost increase substantially
Solution Approach 1:
The patent merges multiple user-specific copies into a single shared storage location. Instead of maintaining separate physical copies for each user, the system stores one copy in the shared network storage location that all authorized users can access, thereby reducing storage burden while maintaining copyright compliance through access control mechanisms
Solution Approach 2:
The shared network storage location serves multiple functions: it acts as a single copy repository that fulfills copyright requirements for all users simultaneously, provides centralized content distribution, and enables efficient space utilization. This universal storage solution replaces the need for user-specific storage locations
2Adaptability or versatility
If separate copies are maintained for multiple users, then private copy requirements are met, but storage space requirements increase
Solution Approach 1:
The system creates a single copy in shared network storage that serves as the private copy for all authorized users. This eliminates the need to physically copy the same content multiple times across different user devices or storage locations, thereby meeting private copy requirements while minimizing storage space consumption
3Reliability
If DVR service providers maintain separate user copies, then legal requirements are satisfied, but service cost increases
Solution Approach 1:
The patent combines multiple user-specific storage requirements into a single shared storage infrastructure. This merging approach reduces the total cost of ownership by eliminating redundant storage capacity, lowering infrastructure costs, and simplifying content management operations while maintaining legal compliance through authorized access controls
Data Source
AI summary
Described herein are techniques and mechanisms for providing a lean private copy of media content. According to various embodiments, a private copy of a media content item may be made specific to a user account. For example, to use a private copy of a media content item to present that media content item, a client machine may need to first perform operations such as account authentication, content licensing, and device-based DRM. The private copy of the media content item may be significantly deduplicated such that the actual size on disk of the private copy is small relative to the size of the uncompressed media content item. The private copy of the media content item may include reference information which maps the user account associated with the copy to data files associated with the recording.