NFC Digital Media Gifting with DRM Segmentation
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Solution Overview
Problem
The transfer of copyright-protected digital media files between devices is often hindered due to digital rights management techniques, making it difficult to share media content while ensuring copyright compliance.
Innovation Solution
A method for gifting digital media files using near-field communication (NFC) between devices, where the initiating device authorizes a gift charge, creates a DRM-protected gift file, and transfers it to the receiving device, allowing playback after authentication with the online digital media provider.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If digital rights management techniques are used to protect copyright, then copyright protection and compensation are ensured, but transferability of digital media files between devices is restricted
Solution Approach 1:
The patent segments the digital media file into two distinct components: the encrypted media content and the DRM key. The media file can be transferred separately from the key, allowing the file to be shared while maintaining copyright protection through the separate key management system. This segmentation enables transferability without compromising copyright protection.
Solution Approach 2:
The patent introduces a DRM server as an intermediary between the media player and the copyright protection system. The server manages the DRM keys and authorizes playback, allowing media files to be transferred and played on different devices without directly exposing the copyright protection mechanisms. This intermediary enables both transferability and copyright protection.
2Adaptability or versatility
If digital media files are transferred between devices, then sharing capability is enabled, but playback accessibility may be lost due to DRM restrictions
Solution Approach 1:
By separating the media file from the DRM key, the system allows the media to be shared freely while maintaining playback accessibility through proper key management. The segmented approach ensures that transferred files remain playable on authorized devices.
Solution Approach 2:
The patent implements a feedback mechanism where the receiving device communicates with the DRM server to verify authorization before playback is enabled. This feedback loop ensures that transferred media files maintain playback accessibility by confirming the receiving device's authorization status with the copyright holder.
3Ease of operation
If close range communication protocol is used for device connection, then gifting process is simplified and speed is improved, but connection range is limited
Solution Approach 1:
The patent uses NFC for preliminary device connection and authentication, establishing a trusted connection quickly and simply. Once connected through this close-range protocol, the system can complete the media transfer and authorization process, eliminating the need for continued close-range connection during the actual gifting operation.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables secure and compliant sharing of digital media files between devices, ensuring copyright protection and user accessibility while simplifying the gifting process.
Implementation Method 1
a gift offer may be transmitted from the initiating device to the receiving device using a close range communication protocol, such as near-field communication (NFC) connection
Data Source
AI summary
Various techniques are provided for the gifting between multiple electronic devices of media content provided by an online digital media provider. An offer and acceptance of a selected gift file is accomplished between a gifter device and a receiving giftee device using a near-field communication (NFC) connection. If a connection to the online provider is available, the gifter device may transmit a gift request by which the gifter's account is charged for the gift file. Thereafter, a gift file created using DRM keys associated with the giftee's account may be downloaded to the giftee device. If a network connection is unavailable, the giftee device may transfer a locked gift file and a corresponding gift license to the giftee device using a peer-to-peer connection. The giftee device may authenticate the license and unlock the gift file once a connection to the online provider is available.