Kiosk SD Card Writer Secure Content Transfer
Solution Overview
Problem
Existing digital media distribution systems via kiosks face challenges in efficiently and securely transferring large media files to SD cards, particularly in ensuring quick and secure writing to both secure and unsecure areas of the SD card, while also enabling firmware updates and customer attraction through previews.
Innovation Solution
The system employs a high-speed SD card writer that prioritizes writing to the secure area after initial setup with a user key, allowing for rapid transfer of large media files and firmware updates, while also utilizing a customer attraction module to showcase previews and advertisements, ensuring secure content protection through Content Protection for Recordable Media (CPRM) standards.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If digital media content is downloaded to SD card through kiosk, then content distribution is enabled, but transfer speed is slow and security risk increases
Solution Approach 1:
The patent divides the SD card into secure and unsecure areas, and segments the content transfer process into two phases: first transferring content to the unsecure area at high speed, then copying to the secure area. This segmentation allows parallel processing and prioritization, achieving both high transfer speed and security.
Solution Approach 2:
The system performs preliminary setup by creating the unsecure area first, then uses it as a temporary buffer for high-speed content reception. This preliminary action enables the secure area to be protected while still allowing fast content acquisition through the unsecure pathway.
2Reliability
If secure area writing is prioritized for content protection, then security is improved, but transfer speed decreases
Solution Approach 1:
The patent inverts the conventional approach by prioritizing writing to the unsecure area first, rather than directly to the secure area. Content is rapidly written to the unsecure area and then copied to the secure area, achieving both speed and security by reversing the traditional write priority.
Solution Approach 2:
The unsecure area acts as an intermediary buffer between the content source and the secure area. This intermediary enables high-speed initial writing while the secure area remains protected, allowing the system to achieve both fast transfer and secure storage.
3Adaptability or versatility
If firmware updates are implemented through SD card, then device functionality is enhanced, but update time increases
Solution Approach 1:
The system enables continuous content transfer to the unsecure area without interruption, allowing firmware updates to be received and stored rapidly. The unsecure area serves as a continuous buffer that maintains high transfer rates throughout the update process.
Data Source
AI summary
A system and a method are disclosed for quickly and securely transferring media files to an SD card from a kiosk. The kiosk includes a customer interface module for receiving a selection of a media file to transfer, a transaction module for accepting payment, a media file processing module for preparing the media file to be written to the SD card, and a high-speed secure SD card writer that can write to both an unsecure area and a secure area of the SD card. All data is written to the unsecure area before data is written to the secure area to improve speed. Optionally, the kiosk includes a firmware update module for distributing firmware updates through the SD cards, and the ability to play previews to attract customers and entertain them while transferring media files to the SD card.