Media Inbox Segmentation for DRM Content Management
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Solution Overview
Problem
Portable media devices face challenges in managing copyright-protected content, as digital rights management (DRM) techniques become difficult to manage when content is transferred, leading to resource consumption and clutter due to expired or inactive media objects.
Innovation Solution
Implementing a media device inbox that separates received media files from the main library, applies DRM rules, and manages media objects by excluding expired or inaccessible items, allowing for sorting and alteration to reduce clutter and resource consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If DRM rules are enforced on transferred content, then content protection is improved, but managing expired or inactive objects becomes difficult leading to resource consumption and clutter
Solution Approach 1:
The patent divides the media library into two distinct sections: an inbox for received/transfered objects and a main library for permanently stored objects. This segmentation allows different management strategies for each section, with the inbox handling temporary DRM-protected content separately from the permanent library, thereby simplifying overall management while maintaining protection.
Solution Approach 2:
The patent extracts expired or inactive objects from the main library view by confining them to the inbox section. This extraction prevents cluttered display and simplifies user interaction with the main library, while the inbox separately manages these extracted objects with appropriate DRM enforcement.
2Ease of operation
If received media objects are stored in the main library, then accessibility is improved, but device clutter and resource consumption increase due to expired or unusable objects
Solution Approach 1:
The patent segments the library into inbox and main library sections. Objects are stored in the inbox upon receipt and only moved to the main library after validation and user confirmation. This segmentation ensures that expired or unusable objects remain confined to the inbox and do not clutter the main library, maintaining accessibility while reducing storage waste.
Solution Approach 2:
The patent performs preliminary validation and sorting of received objects in the inbox before they are made accessible in the main library. Expired or inactive objects are identified and separated during this preliminary phase, preventing them from entering the main library and causing clutter, while valid objects are prepared for accessible storage.
3Ease of operation
If all received objects are made accessible in the library, then user convenience is improved, but DRM enforcement and resource management become less effective
Solution Approach 1:
The patent segments object management into two phases: initial receipt in the inbox with full DRM enforcement, and subsequent access in the main library with validated status. This segmentation allows strict DRM checking to occur during the inbox phase, ensuring only valid objects proceed to the convenient main library access phase, thereby maintaining both enforcement reliability and user convenience.
Solution Approach 2:
The patent implements a feedback mechanism where the system continuously monitors object status (expiration, activation state) and provides updates to the user interface. Objects that become expired or inactive provide feedback that triggers their removal from accessible views or notification to the user, maintaining DRM enforcement while preserving convenience for valid objects.
Data Source
AI summary
Media devices that transfer content to other devices may man age a user's received media files by creating a media device inbox. Shared content may be stored in an inbox cache that is separate from the device's main content library to exclude limited-access inbox content from interaction with the device's main library. Further, inbox content may be altered upon expiration to reduce resource consumption and inbox clutter.