Dynamic Premium Assignment in Mobile Content DRM
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Solution Overview
Problem
Current Digital Rights Management (DRM) methods, such as 'separate delivery', do not allow for dynamic assignment of premiums to different users, limiting the ability to offer personalized recommendations and rewards for content object exchanges between users.
Innovation Solution
A method that involves sending a content object with an identification of the first terminal device to a second terminal device, allowing the rights provider to assign a premium dynamically, while ensuring secure access and authentication through private key signatures, enabling individualized premium offers for recommending users.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate delivery method is used with encrypted content objects, then content protection against unauthorized use is improved, but the ability to track and reward recommending users is lost
Solution Approach 1:
The patent segments the rights object into multiple components: a first rights object containing user identification information and premium offer, and a second rights object containing usage rights. This allows the content to remain encrypted and protected while separately tracking user identity for reward purposes.
Solution Approach 2:
The patent introduces a rights provider as an intermediary that receives the content object with embedded user identification, processes the premium assignment, and issues the appropriate rights objects. This mediator enables tracking of recommending users without compromising the encryption and protection of the content itself.
2Ease of operation
If content objects are encrypted and stored in freely accessible storage area, then ease of storage and transfer is improved, but the ability to enforce usage restrictions is weakened
Solution Approach 1:
The patent divides the rights management into separate components: the encrypted content object can be freely stored and transferred, while usage restrictions are enforced through separate rights objects that must be obtained from the rights provider. This maintains ease of operation for storage while preserving reliable usage control.
3Adaptability or versatility
If dynamic premium assignment is implemented, then user personalization is improved, but system complexity increases
Solution Approach 1:
The patent implements self-service by allowing the terminal device to automatically extract user identification information from the content object, generate the appropriate rights objects, and manage the premium assignment without requiring complex centralized processing. This reduces system complexity while maintaining personalization capability.
Data Source
AI summary
A method for carrying out the premium-based recommendation of content objects that can be downloaded to a mobile terminal includes the following steps: transmitting a first content object DRMC from a content provider IA to a first terminal EG A; transmitting a first rights object RO A from a rights provider RA to the first terminal; transmitting the content object DRMC*, together with an identification of the first terminal, from the first terminal to the second terminal EG B, and; requesting a second rights object RO B from the rights provider RA via the second terminal EG B, whereby the second rights object RO B permits the second terminal EG B to use the content object. In addition, the identification of the first terminal EG A is conveyed to the rights provider RA, and the rights provider can subsequently assign a premium to the first terminal EG A.