Media Consumption Tracking with Offline License Synchronization
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Solution Overview
Problem
Existing media consumption systems face challenges in managing digital licenses for media titles across multiple devices, particularly when devices are offline, as they struggle to synchronize consumption reports and validate licenses efficiently, leading to discrepancies and potential payment issues.
Innovation Solution
A networked environment with a media server and media consumption tracker that monitors and reconciles media consumption across devices, updates licenses based on reported playback events, and handles offline scenarios by queuing reports and validating licenses upon reconnection, ensuring synchronization with the master license and facilitating payment transactions as needed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If devices are allowed to consume media offline without real-time server validation, then media playback availability is improved, but license synchronization accuracy deteriorates
Solution Approach 1:
The system performs preliminary actions by having devices queue consumption events locally before server connection is available. The device accumulates playback events in a queue during offline periods, then submits them batched to the server when reconnected, ensuring no consumption data is lost while maintaining offline playback capability.
Solution Approach 2:
The server sends license update notifications back to devices based on consumption reports from other devices. When the server detects that a device's local license needs updating (e.g., another device has consumed the media), it pushes license update notifications to ensure all devices have synchronized license states, resolving the accuracy issue.
2Measurement precision
If consumption reports are synchronized in real-time across all devices, then license accuracy is improved, but network dependency increases
Solution Approach 1:
The system segments the license validation process into local and server components. The device independently tracks consumption events and maintains a local license state, only contacting the server when needed for validation or updates. This segmentation allows offline operation while maintaining eventual consistency.
Solution Approach 2:
Devices perform self-service by autonomously queuing consumption events and managing their own local license state without requiring continuous server validation. The device can determine whether to allow playback based on its local license state, only seeking server assistance when synchronization is needed.
3Ease of operation
If multiple devices can consume the same media title simultaneously, then user convenience is improved, but license management complexity increases
Solution Approach 1:
The server implements a universal license management system that handles multiple devices through a single master license. The server tracks consumption across all devices and automatically updates each device's license state, providing multi-device support without requiring complex individual license management at each device.
Solution Approach 2:
The server acts as an intermediary that mediates license management between multiple devices. Instead of devices directly managing licenses with each other, they all communicate through the server, which reconciles consumption reports and distributes updated licenses, simplifying the management complexity.
4Measurement precision
If the system validates licenses before allowing playback, then payment accuracy is improved, but playback responsiveness deteriorates
Solution Approach 1:
The system performs preliminary license validation during the media download process. When a user downloads media, the server validates the license and provides the device with authorization information upfront. This allows immediate playback without requiring validation at the moment of playback, improving responsiveness while maintaining payment accuracy.
Data Source
AI summary
Disclosed are various embodiments for tracking media consumption by multiple devices. On a computing device, a first media consumption report is received. The first media consumption report is associated with a media title on a first client device. The first client device is registered by a user. A rights windows in a license associated with the media title is reconciled with the first media consumption report. Responsive to the reconciling, the reconciled license is propagated to the first client device.