License Consignment via Server Mediation for DRM
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Solution Overview
Problem
Current digital rights management (DRM) systems lack an effective method for license consignment between portable devices, hindering efficient license utilization and management.
Innovation Solution
A license consignment method and system that allows a portable device to select and transmit license information to a license server, which then manages the license and sends download trigger messages to designated devices before the consignment period expires, ensuring efficient license distribution and storage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a license is consigned to another device without an effective technique, then license utilization flexibility is improved, but license management reliability deteriorates
Solution Approach 1:
The patent introduces a license server as an intermediary between the portable device and the designated device. The license server manages license information, stores consigned licenses securely, and controls the license transfer process, thereby maintaining reliability while enabling flexibility. The server acts as a trusted mediator that ensures proper authorization and tracking throughout the consignment process.
Solution Approach 2:
The system implements feedback mechanisms where the portable device receives notifications about license consignment status, and the license server monitors and tracks license usage. This feedback loop ensures that all parties are informed of the license state, enabling reliable management while maintaining operational flexibility for consignment.
2Productivity
If manual license transfer procedures are used, then system complexity is reduced, but productivity deteriorates
Solution Approach 1:
The system enables self-service license consignment where the portable device can automatically initiate license transfer to designated devices without requiring complex manual intervention. The device autonomously communicates with the license server, transmits license information, and receives confirmation, significantly improving transfer efficiency while keeping the user interface simple.
Solution Approach 2:
The license server pre-stores license information and prepares consignment data in advance. When a consignment request is made, the server quickly retrieves and transmits the necessary license data, eliminating the need for complex real-time processing and manual verification, thus improving productivity without proportionally increasing system complexity.
3Ease of operation
If license consignment is enabled without time control, then ease of operation is improved, but loss of time deteriorates
Solution Approach 1:
The system performs preliminary actions by pre-storing license information on the license server and pre-configuring consignment parameters including time limits. When consignment is initiated, the server immediately has the license data ready for transmission, reducing the actual transfer time while maintaining operational simplicity for the user.
Solution Approach 2:
The system implements periodic monitoring and time-based notifications for license consignment. The license server tracks the consignment process and sends periodic status updates or expiration notifications to the portable device, ensuring time control is maintained automatically without requiring continuous user intervention, thus preserving ease of operation while managing time effectively.
Data Source
AI summary
A license consignment method and system for a portable device playing a right-protected content with a license is provided for improving utilization reliability and manageability of a license by enabling a license server to manage the license consigned by the portable device. The method includes selecting a license to be consigned to a license server, transmitting the license server license information corresponding to the selected license, and transmitting, when the license is not downloaded in a certain time, a download trigger message to the portable device.