PFI Directory Entry for FAT File System Metadata Storage
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Solution Overview
Problem
The FAT file system, widely used in mobile devices and Windows environments, lacks compatibility with additional information storage, such as location and weather data, which limits its utility in modern applications.
Innovation Solution
A file system and method that incorporate a personality-oriented file information (PFI) directory entry with a dual structure, including a FAT structure for compatibility and an additional information structure, allowing storage and linkage of extra data like GPS location and weather information, ensuring that accessing, duplicating, or moving files also manages the associated additional information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a traditional FAT file system is used, then compatibility with mobile devices and Windows environments is maintained, but the ability to store additional information such as location and weather data is lost
Solution Approach 1:
The patent embeds additional information directory entries within the existing FAT directory structure. Each file's directory entry contains not only standard FAT fields but also nested additional information fields (such as location, weather, and other metadata) that are stored in a hierarchical manner, allowing the FAT system to maintain its original functionality while accommodating extra data storage capabilities
Solution Approach 2:
The patent extends the FAT directory entry structure to serve multiple functions simultaneously. The enhanced directory entry既能 store traditional file allocation information又能 store additional contextual information, making the file system entry multi-functional. This allows a single directory entry to handle both file management and metadata storage without requiring separate structures
2Adaptability or versatility
If the directory entry structure is extended to include additional information, then the usefulness of the file system is improved, but the complexity of the directory entry structure increases
Solution Approach 1:
The patent divides the directory entry into distinct segments or fields, each with a specific function. Standard FAT fields are separated from additional information fields, with clear delimiters and structure definitions. This segmentation allows the system to manage complexity by organizing data into manageable, well-defined sections rather than a monolithic structure
Solution Approach 2:
The patent applies different data structures and formats to different parts of the directory entry based on their specific requirements. Standard fields use traditional FAT formats while additional information fields use specialized formats appropriate for their data type (such as GPS coordinates, weather parameters, etc.), optimizing each local section for its specific purpose
Data Source
AI summary
Provided is a storage device configured to store a file system including (1) a personality oriented file information (PFI) directory entry including a first directory entry having a file allocation table (FAT) structure, and a second directory entry having a structure different from that of the first directory entry, the second directory entry including additional information instructing an access device on at least one parameter associated with creation and storing of a storage file, and (2) an entry table including location information of the PFI directory entry.