File Segmentation Index for Set-Top Box Storage
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Solution Overview
Problem
Current file management systems in set-top boxes and similar computing devices face inefficiencies due to slow access times for disk reads and writes, affecting system responsiveness, despite advancements in storage capabilities.
Innovation Solution
Implementing a method where a first file system partitions files into segments and uses an index file to manage these segments, allowing for efficient file operations by interfacing with a second file system, thereby enhancing file management efficiency and adding features like PVR functionality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If files are stored directly on disk storage medium, then storage capacity is increased, but access time becomes slow affecting system responsiveness
Solution Approach 1:
The patent divides files into multiple segments and stores them across different locations in the file system. This segmentation allows the system to access only the required segments rather than reading entire files, reducing access time while maintaining storage capacity. The index file structure enables direct access to specific segments without sequential reading.
2Quantity of substance
If mass storage devices are added to increase storage capability, then storage capacity is improved, but device complexity increases
Solution Approach 1:
The patent introduces an index file as an intermediary layer between the file system and the mass storage device. The index file contains metadata about file segments including their locations and sizes. This intermediary structure simplifies the complexity by providing a standardized interface for file operations while managing the underlying storage complexity transparently.
3Productivity
If file operations are performed on segmented files, then file management efficiency is improved, but operation complexity increases
Solution Approach 1:
The patent creates a universal index file structure that can handle various file operations (read, write, delete, seek) through a unified mechanism. The same index file structure and access methods work for different file types and operations, improving efficiency by avoiding the need for separate handling logic for each operation type while maintaining manageable complexity through standardization.
Data Source
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AI summary
Systems and methods allow for reliably and efficiently managing files stored on a data storage medium associated with a computer system such as a set-top box. In one embodiment a method of managing a file is provided. The method includes: mounting a first file system to a second file system; creating, by the first file system, a virtual file by partitioning a file into a plurality of segments and by linking the plurality of segments in an index file; and sending a file operation request, by the first file system, to the second file system based on the segments of the virtual file.