DRM Protocol Conversion for Content Delivery Networks
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Solution Overview
Problem
Existing digital rights management (DRM) systems face challenges when a content source changes its DRM protocol, as user devices hard-wired to process older protocols may become incompatible.
Innovation Solution
The system converts first DRM data in a first DRM protocol into second DRM data in a second DRM protocol, generating data independent of any specific DRM protocol, allowing user devices to process content secured by different protocols.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If user devices are hard-wired to process a specific DRM protocol, then device complexity is reduced and ease of operation is improved, but adaptability to different DRM protocols deteriorates
Solution Approach 1:
The patent introduces an intermediary DRM protocol conversion system that translates between different DRM protocols. This mediator converts content from a first DRM protocol to a second DRM protocol, allowing user devices to access content regardless of the original protocol used. The intermediary resolves the contradiction by enabling protocol compatibility without requiring devices to support multiple protocols directly.
2Adaptability or versatility
If content sources change DRM protocols, then adaptability and forward compatibility are improved, but reliability of existing user devices deteriorates
Solution Approach 1:
The patent implements preliminary action by performing DRM protocol conversion before content delivery to user devices. The system proactively translates content from the content source's DRM protocol to a compatible protocol suitable for the user device, ensuring reliable playback without requiring the device to handle protocol changes. This preliminary conversion maintains reliability while enabling adaptability.
Data Source
AI summary
Systems, apparatuses, and methods are described for converting digital rights management (DRM) data in a specific protocol to standardized DRM data. The standardized DRM data may be used to secure content delivered to user devices through a content delivery network. If a user device decides to record a content item, a request for authenticating entitlement to the content item may be sent to a network device and the network device may reply with an authentication receipt if appropriate. If the user device later decides to access the content item, the user device may send the authentication receipt back to the network server so that the network server may reply with a decryption key for decrypting the content item.