Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

File segmenting method and device for FAT file system

A file system and file segmentation technology, applied in special data processing applications, instruments, electrical digital data processing, etc., to save operation time and storage space.

Inactive Publication Date: 2006-05-24
VIMICRO CORP
View PDF0 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Obviously, this requires register space for storing file A; additional storage space is used to generate new sub-files, and essential file read and write operations are required

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • File segmenting method and device for FAT file system
  • File segmenting method and device for FAT file system
  • File segmenting method and device for FAT file system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0033] The method for file segmentation in the FAT file system proposed by the present invention is described as follows in conjunction with the accompanying drawings and embodiments. The following embodiments are only used to illustrate the present invention, but not to limit the present invention. Those of ordinary skill in the relevant technical field can also make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, all Equivalent technical solutions also belong to the category of the present invention, and the scope of patent protection of the present invention should be defined by each claim.

[0034] refer to Figure 4 , in the present embodiment, whole FAT file system is placed in an audio processing chip, and this audio processing chip comprises CPU and memory part, wherein the data transmission between CPU and memory adopts DMA (direct memory access) commonly used in the prior art )transfer method. Speci...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

Modifying cluster chain table of original files, the method creates new structure of sub file list item. Finally, deleting the cluster chain table of original files, the method completes operation for segmenting files. Without need of carrying out operation of reading / writing file, the method needs only to modify cluster chain to realize segmentation of files. Thus, the invention saves time for operating files and saves storage space of system.

Description

technical field [0001] The invention relates to the field of computer principles, in particular to a method for file division in a FAT file system and a device using the method. Background technique [0002] The file storage principle of the FAT file system is that when a part of the disk space is formatted as a FAT file system, the FAT file system will plan this partition as an entire allocatable area to facilitate data storage. [0003] FAT is a file system launched by Microsoft with high compatibility. It is still widely used in personal computers, especially mobile storage devices. FAT is simply composed of 5 parts, namely MBR, DBR, FAT, directory area, and data area. Among them, there is no reserved sector after the boot sector (DBR), followed by the FAT table. The FAT table is used to record the cluster chain structure of the disk data area. FAT divides the disk space into units of a certain number of sectors, and such units are called clusters. Normally, the princi...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/30
Inventor 孙丰强谭帅
Owner VIMICRO CORP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com