Home Media Gateway Digital Rights Management for Multi-Device Transfer
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Solution Overview
Problem
Current media distribution systems face challenges in efficiently managing digital rights for multimedia content across multiple devices within a household, particularly in ensuring secure playback and transfer while preventing unauthorized copying and rebroadcasting.
Innovation Solution
A home media gateway device that integrates multimedia server capabilities, allowing for the transfer of media content with digital rights management, using wired and wireless connections, and includes features for obtaining and managing digital rights for various devices, ensuring secure playback and transfer while allowing incremental fee structures and ad insertion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If digital rights management techniques are applied to protect media content, then security against unauthorized copying is improved, but device complexity increases
Solution Approach 1:
The patent introduces a rights management system as an intermediary layer between the media content and the playback devices. This system handles the complexity of digital rights management centrally, allowing individual devices to play content without needing to understand or implement the full DRM architecture, thus reducing device complexity while maintaining security.
Solution Approach 2:
The DRM functionality is segmented into separate modular components: a rights management server, device registration modules, and content encryption layers. This segmentation allows each component to be optimized independently and reduces the complexity burden on individual devices by distributing the management function across the network.
2Adaptability or versatility
If multiple devices are supported within a household, then adaptability is improved, but difficulty of detecting and measuring unauthorized use increases
Solution Approach 1:
The system implements feedback mechanisms where each device provides identification information to the rights management server, and the server returns rights status information. This continuous feedback loop allows the system to track which devices are authorized to access specific content, making it easier to detect unauthorized attempts across multiple devices.
Solution Approach 2:
Devices are registered and authorized in advance before accessing protected content. The system maintains a database of authorized devices and their associated rights. This preliminary action simplifies detection by establishing a clear baseline of authorized usage before any content access occurs.
3Adaptability or versatility
If media content is transferred to multiple devices, then versatility is improved, but loss of information regarding digital rights increases
Solution Approach 1:
The rights management server acts as an intermediary that maintains centralized records of digital rights information for all transferred content. When content is transferred to multiple devices, the server ensures that rights information is preserved and associated with each device, preventing loss of critical rights data during the transfer process.
Solution Approach 2:
The system nests digital rights information within the content transfer process itself. Rights management data is embedded alongside the media content, ensuring that when content is transferred to multiple devices, the rights information travels with it and remains intact, maintaining the integrity of the rights management system.
Data Source
AI summary
Media content is received for a plurality of devices based on a user selection. The media content includes digital rights for the plurality of devices. The media content is transferred to at least one of the plurality of devices in accordance with the digital rights.