Playback Device Content Search and Rights Management
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Solution Overview
Problem
Existing playback devices are unable to play full HD and UHD content, and there is a need for a method to manage and search for various types of content across storage devices and networks, as well as flexibly change user rights for playback.
Innovation Solution
A system architecture that includes detecting connected storage devices, requesting and receiving information, and using a license server to manage playback rights, allowing content to be played based on user permissions and device levels, with the option to set separate playback rights for each frame of content.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If existing playback devices are used, then device simplicity is maintained, but the ability to play full HD and UHD content is lost
Solution Approach 1:
The patent introduces a license server as an intermediary between the playback device and the content. The license server handles the complex verification and rights management for full HD and UHD content, allowing existing playback devices to play high-definition content without incorporating complex playback capabilities themselves. The license server mediates the interaction, providing the necessary authorization and content delivery while keeping the playback device relatively simple.
2Adaptability or versatility
If content is searched across multiple storage devices and networks, then content availability is improved, but system complexity increases
Solution Approach 1:
The playback device is designed with multi-functionality to search for and access content across multiple storage devices and networks. The device can detect connected storage devices, request information from them, and play content from any of these sources. This universal search capability allows the system to access content from various locations without requiring separate specialized devices for each storage location.
Solution Approach 2:
The license server acts as an intermediary that manages the complexity of searching across multiple storage devices and networks. It coordinates the detection of storage devices, requests information about available content, and manages the playback rights. This centralizes the complexity in the license server rather than distributing it across multiple playback devices.
3Reliability
If user rights are flexibly managed, then content security is improved, but management complexity increases
Solution Approach 1:
The license server serves as an intermediary that handles all rights management operations. It verifies playback rights, manages user permissions, and controls access to full HD and UHD content. By centralizing rights management in the license server, the complexity of securing content and managing user permissions is consolidated in one location rather than distributed across multiple playback devices.
Solution Approach 2:
The system uses parameter changes in the form of license information that can be dynamically adjusted. The license server can modify playback rights parameters based on user permissions, content type, and device capabilities. This allows flexible rights management where the same playback device can have different access levels to different content based on dynamically issued license parameters.
4Measurement precision
If separate playback rights are set by frames, then content control precision is improved, but processing complexity increases
Solution Approach 1:
The patent implements frame-level playback rights by using parameter changes in the license information. Each frame or sequence of frames can have associated playback right parameters that are verified by the license server. This allows precise control where different portions of content can have different access restrictions, with the precision controlled by the parameter granularity in the license data rather than requiring complex processing at each frame.
Data Source
AI summary
Disclosed is a method for playing content stored in a storage device connected through at least one interface, including detecting a first storage device and a second storage device connected a second playback device, requesting first information related to the detected second storage device, receiving the first information from the second playback device, and playing at least one content included in the first storage device or the second storage device, wherein the first information includes at least any one of an identifier (ID) of the second playback device, an ID of the second storage device, and a content ID list.