Virtual File System Layer Compression for Storage Capacity
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Solution Overview
Problem
Portable electronic devices face performance issues due to insufficient storage capacity, necessitating efficient file reading and writing methods that do not compromise device performance.
Innovation Solution
An electronic device with a software layer structure including a first virtual file system layer, a compressed file system layer, and a second virtual file system layer, which compresses and decompresses files as needed to manage storage efficiently without reducing device performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If files are compressed to increase storage capacity, then storage space is improved, but device performance may deteriorate due to compression and decompression operations
Solution Approach 1:
The patent divides the file system into multiple virtual layers (first virtual file system layer, compressed file system layer, second virtual file system layer) that operate independently. Each layer handles specific tasks: the first layer manages file access requests, the compressed layer performs compression/decompression, and the second layer manages stored data. This segmentation allows storage compression to occur without blocking overall device performance, as operations are distributed across layers rather than serialized.
Solution Approach 2:
The patent introduces virtual file system layers as intermediary components between the application and the physical storage. These virtual layers act as mediators that buffer and manage compression operations, preventing direct performance impact on the device. The virtual file system layers handle compression asynchronously and manage data flow between the application and compressed storage, isolating performance-critical operations from the main execution path.
2Device complexity
If a simple file system structure is used, then device complexity is reduced, but storage efficiency deteriorates due to insufficient compression capability
Solution Approach 1:
The patent implements a nested multi-layer file system structure where virtual file system layers are embedded within each other. The first virtual file system layer sits above the compressed file system layer, which in turn sits above the second virtual file system layer that interfaces with physical storage. This nesting allows complex compression functionality to be integrated within the file system hierarchy without exposing complexity to the application layer, maintaining simplicity for users while achieving storage efficiency through compression.
Data Source
AI summary
An electronic device is provided. The electronic device includes at least one first memory being nonvolatile and a processor configured to read a file from the first memory or to write a file on the first memory. The first memory stores instructions, the instructions, when executed, causing the processor to provide a software layer structure including a first virtual file system layer configured to interface with an application program layer, a compressed file system layer configured to compress at least a part of data of the written file or to decompress at least a part of data of the read file, a second virtual file system layer configured to manage the written or read file, and a first file system layer configured to read at least a part of the file from the first memory or to write at least a part of the file on the first memory.