Method for storing data of storage media stored in electronic device

A technology of electronic devices and media, applied in the direction of electronic digital data processing, instruments, etc., can solve the problems of small memory capacity, complex file system, unsuitability, etc., and achieve simple data access methods, data security protection, and low memory capacity Effect

Active Publication Date: 2014-12-03
SILICON MOTION INC (CN)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] Some known file systems, such as File Allocation Table (FAT) or New Technology File System (NTFS), have been widely used by operating systems to organize and manage files stored in a storage device. However, these file systems are not suitable for many low-level embedded systems with little memory capacity for the following reasons: first, these file systems are usually very complex; second, the operating system requires a large memory capacity, And it takes more time to access files from these file systems; third, these standard file systems usually lack security, so it is not easy to protect their content

Method used

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  • Method for storing data of storage media stored in electronic device
  • Method for storing data of storage media stored in electronic device
  • Method for storing data of storage media stored in electronic device

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Embodiment Construction

[0056] Please refer to figure 1 , figure 1 It is a schematic diagram of a portable electronic device 100 according to an embodiment of the present invention. Such as figure 1 As shown, the portable electronic device 100 includes an interface 102 , a controller 104 and a memory 106 , wherein the interface 102 is electrically connected to an interface 122 of a computer host 120 . In addition, the portable electronic device 100 can be a flash memory device, a media player (such as an MP3 player), a digital camera / camcorder, a mobile phone, a personal digital assistant (Personal Digital Assistant, PDA), or is any other portable electronic device with a storage medium.

[0057] also, figure 2 A schematic diagram of a file system of memory 106 is shown. Such as figure 2 As shown, the memory 106 has a plurality of cluster areas (cluster) (in this embodiment, the memory 106 has 1024 cluster areas), wherein the cluster area is the minimum memory configuration space required for...

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Abstract

The invention relates to a method for storing data of a storage media stored in an electronic device, wherein the storage media stores a file using comparison table, wherein the file using comparison table is provided with a plurality of file using data of a plurality of cluster areas respectively corresponding to the storage media. The method comprises the steps of: when a file is stored in a specific cluster area of the plurality of cluster areas in the storage media, correcting a specific file using datum corresponding to the specific cluster area; and when the file is deleted from the storage media, setting the specific file using datum as a preset value. The file system and the data storage method provided by the invention are simple, and only need less internal memory capacity and shorter storage time. In addition, the non-standard file system and relevant data storage method can effectively protect data security in the storage media.

Description

technical field [0001] The present invention relates to a data access method, more specifically, to a method for accessing data stored in a storage medium in an electronic device, wherein the storage medium stores a comparison table, and the comparison table There are a plurality of pieces of data respectively corresponding to a plurality of cluster areas of the storage medium or a plurality of files stored in the storage medium. Background technique [0002] Some known file systems, such as File Allocation Table (FAT) or New Technology File System (NTFS), have been widely used by operating systems to organize and manage files stored in a storage device. However, these file systems are not suitable for many low-level embedded systems with little memory capacity for the following reasons: first, these file systems are usually very complex; second, the operating system requires a large memory capacity, And it takes more time to access files from these file systems; third, the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F13/10
Inventor 楼文忠
Owner SILICON MOTION INC (CN)
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