Digital Cinema File Distribution via Modular Track Updates
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Solution Overview
Problem
Current digital cinema file distribution methods, such as physical hard drives and satellite transmission, face challenges with incremental updates being limited to manual deliveries and requiring pre-packaging of multiple Digital Content Packages (DCPs) due to large file sizes and regional variations, leading to logistical issues and expenses.
Innovation Solution
Automating the distribution of digital cinema updates by discretely delivering track file updates after an initial master file is delivered to theaters, allowing on-demand assembly of digital content packages and using a server to push or pull updates based on theater requests, with encryption and authentication for secure delivery.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If physical hard drives or satellite transmission are used for digital cinema file distribution, then secure delivery and region-specific distribution can be achieved, but incremental updates require manual deliveries and pre-packaging of multiple DCPs due to large file sizes, leading to logistical issues and expenses
Solution Approach 1:
The patent segments the digital cinema package into modular components (DCP, DCPK, CPL, track files) that can be independently managed and updated. This allows incremental updates by transmitting only changed components rather than complete DCPs, reducing distribution complexity while maintaining security through selective re-delivery of specific segments.
Solution Approach 2:
The system performs preliminary actions by pre-assembling and encrypting complete DCPs and DCPKs at the server before distribution. This preliminary preparation enables efficient incremental updates later, as only the necessary components need to be re-transmitted to theaters, reducing ongoing logistical complexity.
2Adaptability or versatility
If multiple Digital Content Packages (DCPs) are pre-packaged for different regions and formats, then region-specific and format-specific distribution can be achieved, but this creates logistical issues and expenses due to the need to manage and deliver multiple complete packages
Solution Approach 1:
The patent divides the distribution system into separable components where a single master DCP and multiple DCPKs (containing different CPLs and track files) are created. This segmentation allows one base package to serve multiple regions and formats by combining with different DCPKs, reducing the total number of complete packages needed while maintaining adaptability.
Solution Approach 2:
The system creates universal base DCPs that can be combined with multiple region-specific DCPKs containing different composition playlists and track files. This multi-functionality allows a single DCP to serve multiple regions and formats by pairing with appropriate DCPKs, reducing the quantity of complete packages that must be distributed and managed.
3Reliability
If complete Digital Content Packages (DCPs) are re-delivered for incremental updates, then all theaters receive consistent content, but this is inefficient due to large file sizes and the fact that only minor changes (trailers, subtitles) need updating
Solution Approach 1:
The patent extracts and separates the updateable components (CPLs and track files) from the complete DCP structure. This extraction allows incremental updates by transmitting only the specific changed components rather than complete DCPs, significantly improving distribution efficiency while maintaining content consistency through controlled re-assembly at the theater end.
Solution Approach 2:
The system applies partial action by transmitting only the necessary updated components (specific CPLs and track files) rather than complete DCPs. This partial re-delivery maintains content consistency across theaters while dramatically improving distribution efficiency by sending only the minimal required changes.
4Reliability
If manual delivery methods are used for incremental updates, then control over distribution can be maintained, but this process is time-consuming and labor-intensive
Solution Approach 1:
The patent implements self-service by enabling theaters to automatically request and receive incremental updates through the network. The system autonomously manages the update process including authentication, component selection, and delivery, reducing manual intervention while maintaining distribution control through automated authentication and authorization mechanisms.
Solution Approach 2:
The system incorporates feedback mechanisms where theaters can request updates and the server responds by delivering appropriate components. This automated feedback loop maintains distribution control through authentication protocols while eliminating manual delivery processes, significantly reducing update time while preserving reliability.
Data Source
AI summary
Systems and methods for efficiently distributing digital cinema files from a server to a theater are disclosed. The systems and methods may comply with DCI requirements. A server updates an original composition playlist, updates a track file associated with the updated composition playlist, and distributes the updated composition playlist and updated track file to one or more theaters over a communications network. The theater is configured to store the updated track file at a storage containing copies of all track files associated with the updated composition playlist and update the theater's original composition playlist to the updated composition playlist. The server may have a database configured to track the composition playlists and associated track files present in each theater in the system.