Memory Device Directory Virtualization for Cross-Device Content Portability
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Solution Overview
Problem
Mobile devices often require digital content to be stored in specific directories, leading to compatibility issues and reduced portability when content is not found in the expected locations, as different handsets expect digital content to be organized differently.
Innovation Solution
A memory device with circuitry that creates multiple directories pointing to the same storage location or uses headers to indicate content location, and can reorganize its directory structure based on the host device's expectations, ensuring content is accessible regardless of directory structure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If digital content is stored in predefined directory structures for specific handsets, then the content is accessible to that particular handset, but the portability and compatibility of the memory card across different handsets is reduced
Solution Approach 1:
The memory card is designed to serve multiple host devices with different directory expectations by implementing a universal directory structure that can adapt to various handset types. The card contains both a predefined directory structure for specific handsets and a root directory with headers that enable universal content discovery, allowing the same memory card to be compatible across different device platforms without requiring handset-specific customization
Solution Approach 2:
Headers are introduced as intermediary elements in the root directory that act as mediators between the stored digital content and host devices. These headers contain metadata that enables handsets to discover and access content regardless of the directory structure used, serving as a translation layer that reconciles differences between various handset directory expectations and the actual content location
2Adaptability or versatility
If scan functionality is implemented for music and video files, then these file types become accessible irrespective of directory location, but other digital content types such as web pages and pictures remain inaccessible without predefined directories
Solution Approach 1:
The header structure in the root directory is designed to be universally applicable to all types of digital content, not just music and video files. By using a standardized header format that can describe any digital content type, the system enables handsets to discover and access diverse content types including web pages, pictures, and other formats without requiring content-specific scan mechanisms or predefined directory structures for each file type
Data Source
AI summary
A memory device and method for content virtualization are disclosed. In one embodiment, a plurality of directories are created in the memory of the memory device, wherein each of the plurality of directories points to a same storage location of the digital content. In another embodiment, a first header for the digital content is stored in each of the different directories, wherein the first header comprises information about where to find the digital content in the memory. In yet another embodiment, the memory device comprises circuitry that receives an identification of a host device in communication with the memory device and reorganizes a directory structure of the memory in accordance with the identification of the host device, wherein the reorganization results in the digital content appearing to be located in a directory expected by the host device.


