Portable Terminal Sharing Controller with DRM Verification
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Solution Overview
Problem
Portable terminals face issues with unauthorized sharing of data protected by Digital Rights Management (DRM), where sensitive information is inadvertently shared and reproduced on other devices, violating access permissions.
Innovation Solution
An apparatus and method that includes an application analyzer to verify unauthorized data sharing, a sharing information generator to replace sensitive information with limited-sharing information, and a controller to transmit non-shared information, such as mosaic pictures or muted audio, to prevent unauthorized viewing and listening of DRM-protected data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If real-time sharing of reproduced data is implemented, then data sharing capability is improved, but unauthorized data reproduction risk increases
Solution Approach 1:
The patent applies preliminary action by checking DRM authorization status before enabling sharing functionality. The system pre-identifies protected content and prevents sharing configuration from being activated for such content, thereby avoiding unauthorized reproduction before it can occur.
Solution Approach 2:
The patent introduces an intermediary mechanism in the form of a sharing configuration manager that acts as a mediator between the reproduction system and the sharing terminal. This manager intercepts sharing requests, checks authorization status, and selectively enables or disables sharing based on DRM protection status, preventing unauthorized data flow.
2Adaptability or versatility
If DRM-protected data sharing is allowed, then sharing functionality is improved, but data security compliance deteriorates
Solution Approach 1:
The system performs preliminary verification of DRM authorization status before allowing sharing functionality to operate. The sharing configuration manager checks whether the reproduced content is protected by DRM and pre-configures the sharing state accordingly, ensuring security compliance is maintained from the outset.
Solution Approach 2:
The patent implements feedback by continuously monitoring the authorization status of reproduced content and dynamically adjusting sharing configuration based on this feedback. When DRM protection is detected, the system receives feedback about the protected status and automatically disables sharing functionality to maintain compliance.
Data Source
AI summary
An apparatus and method for limiting sharing of reproduction information of a data authorized for only a specific user when a video and audio reproduced from a portable terminal are shared with a peripheral second terminal. The apparatus preferably includes an application analyzer, and a sharing information generator. Sharing information of the reproduced data is replaced with non-shared information when it is verified that the data which is not authorized to be shared is reproduced. A controller transmits the sharing information or the sharing information replaced with the non-shared information to the peripheral second terminal. The sharing information includes picture information and voice information of the reproduced data and wherein the non-shared information is replacement information for limiting viewing of the voice and audio information.