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FAT file data reading/writing method, system and mobile communication terminal

A file data and data reading technology, applied in the computer field, can solve the problems of low overall performance of data reading/writing operations, slow data reading/writing speed, and inability to meet the requirements of high-speed file reading and writing, etc. The effect of improving the speed of read/write operations and reducing the number of transmissions

Inactive Publication Date: 2009-03-11
QINGDAO HISENSE MOBILE COMM TECH CO LTD
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  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the more sending requests, the greater various overheads and delays, the lower the overall performance of data reading / writing operations, and the slower data reading / writing speed, which cannot meet the requirements of multimedia services for high-speed file reading and writing.

Method used

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  • FAT file data reading/writing method, system and mobile communication terminal
  • FAT file data reading/writing method, system and mobile communication terminal
  • FAT file data reading/writing method, system and mobile communication terminal

Examples

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Embodiment Construction

[0038] Many existing storage devices, such as TF memory cards or hard disks, can support data read / write operation commands that read / write multiple sectors at a time, and indicate the need for data read / write operation commands in the data read / write operation command The first sector number of the operation and the number of consecutive sectors can start with the sector corresponding to the first sector number, and complete the data read / write operation of the specified number of consecutive multiple sectors one by one.

[0039] The FAT (File Allocation Table) file management system is widely used in computers based on the WINDOWS operating system, and the file data structure is generally stored in formats such as FAT12, FAT16 or FAT32. The FAT file management system is supported by almost all personal computer operating systems, making it an ideal floppy disk and memory card file management system, and also suitable for data exchange in different operating systems. Such as ...

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Abstract

The invention relates to computer technology, in particular to an FAT file data reading / writing method as well as a system and a mobile communication terminal thereof on the basis of a Linux operating system, which are used for improving the FAT file data reading / writing operation speed of a memory device. In order to improve the FAT file reading / writing speed, the embodiment of the invention sets the size of a logical block to be two or more than two continuous sectors in the Linux operating system, determines the number of a first sector of data reading / writing operation of each time according to a logical block number occupied by file data in the memory device and utilizes the data reading / writing operation command of one time to finish the operation of the data with the size of one logical block according to the first sector number and the amount of sectors included by the logical block, thus manyfold reducing the sending times of data reading / writing operation commands and improving the FAT file data reading / writing operation speed in the memory device.

Description

technical field [0001] The invention relates to computer technology, in particular to a Linux operating system-based FAT file data reading / writing technology. Background technique [0002] Linux is a set of free-to-use and freely disseminated operating systems, mainly used on computers based on Intel x86 series central processors. This system was designed and implemented by thousands of programmers all over the world. Its purpose is to create Unix-compatible products that are not restricted by the copyright of any commercialized software and can be freely used all over the world. Linux is famous for its high efficiency and flexibility. It can realize all Unix features on PC computers. It has the ability of multi-tasking and multi-user. It is widely used in various portable devices with multimedia processing capabilities, such as mobile phones, cameras and other portable devices. equipment. [0003] The software organization responsible for managing and storing file inform...

Claims

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Application Information

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IPC IPC(8): G06F3/06
Inventor 谢志宇
Owner QINGDAO HISENSE MOBILE COMM TECH CO LTD
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