Encrypted Digital Content Transfer Between DVRs
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional methods for transferring encrypted digital content from one digital video recorder (DVR) to another are impractical, requiring either loss of control by the service provider or significant burden on the subscriber, involving lengthy processes and high costs due to the need for direct device key access or technician intervention.
Innovation Solution
A system and method allowing controlled transfer of encrypted digital content from one DVR to another, enabling remote initiation by the service provider, with options for direct transfer to the new DVR or temporary storage, maintaining intellectual property rights and allowing seamless replacement of DVRs without extensive downtime or cost.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If encrypted content is transferred using conventional methods, then the content can be moved between DVRs, but the service provider loses control over intellectual property rights or the subscriber incurs high costs and lengthy processes
Solution Approach 1:
The service provider's server acts as an intermediary that facilitates the transfer of encrypted content by temporarily storing it and providing authorized access to both the old and new DVRs, thereby maintaining control over IP rights while enabling seamless transfer without direct device key exposure
Solution Approach 2:
The content transfer process is segmented into distinct phases: the service provider transfers content from the old DVR to its server, then authorizes the new DVR to access and download the content, with each phase maintaining security controls to preserve IP rights throughout the distributed transfer process
2Reliability
If the service provider maintains control over encrypted content through device keys, then intellectual property rights are protected, but content cannot be transferred when a DVR is replaced
Solution Approach 1:
The service provider's server serves as a trusted intermediary that holds temporary control over encrypted content during DVR replacement, allowing the new DVR to be authorized and authenticated to access the content without the service provider needing to directly transfer device keys, thus maintaining both security and adaptability
Solution Approach 2:
The system dynamically adjusts access rights and authorization levels during the transfer process, temporarily granting the new DVR permission to access content stored on the service provider's server after authentication, then revoking access once transfer is complete, enabling flexible adaptation to different DVR configurations
3Productivity
If direct transfer of encrypted content is performed between DVRs, then transfer speed is faster, but device keys must be exposed creating security risks
Solution Approach 1:
The service provider's server acts as a secure intermediary that receives encrypted content from the old DVR and authorizedly transfers it to the new DVR, eliminating the need for direct device key exposure between DVRs while maintaining efficient transfer speeds through direct server-to-device communication
Solution Approach 2:
The system creates authorized copies of the encrypted content on the service provider's server and the new DVR, with the original remaining on the old DVR until transfer completion, allowing parallel operations that maintain security while enabling efficient content distribution
Data Source
Figure 1~2
Figure 3A~3B
Figure 4~5
AI summary
A device is provided for use with a digital content provider and a content purchaser. The content provider can provide digital content and a first digital key, wherein the digital content has quantified digital rights associated therewith. The device includes a receiving portion, a security portion, a content database, an interface portion and a transmitting portion. The receiving portion can receive the digital content and the first digital key. The security portion can access the digital content with the first digital key. The content database can store the digital content. The interface portion can offer to the content purchaser the digital content and can enable the content purchaser to purchase the digital content in accordance with purchased quantified digital rights. The security portion can further encrypt the digital content with a digital key such that the content purchaser may use the purchased digital content.