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Recording method of digital document

A recording method and digital file technology, applied in digital recording/reproduction, record carrier editing, electronic editing of digitized analog information signals, etc., can solve problems such as inaccurate characteristics, low access speed, weak data protection, etc.

Inactive Publication Date: 2007-01-24
LEJIN GUANGDIAN ELECTRONIC CO LTD SHANGHAI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] However, the above-mentioned FAT12 file system has the disadvantage of allowing low access speed that is common in the DOS floppy disk file system. On external machines such as PCs, digital files are copied or deleted without other confirmation processes, so the protection of data Not only weak, but products that emphasize copyright protection, such as digital audio, bring about the problem of inaccurate characteristics

Method used

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  • Recording method of digital document
  • Recording method of digital document
  • Recording method of digital document

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Embodiment Construction

[0024] The structure of the flash storage area using the digital file recording and access method of the present invention is as follows: image 3 As shown, the area division method is the same as that of ordinary floppy disk or hard disk. That is, the user use area for storing actual data, the file allocation area (FAT) for recording file configuration information, the allocation area for storing information about allocation locations, and the MBR area for storing location information of the operating system.

[0025] At this time, in order to maintain the compatibility with the FAT12 file system, the area where each file of the directory structure is not changed.

[0026] First of all, the file cluster starting from the first data of the file was originally recorded in the specified file with a predetermined size of 2 bytes. Now instead, the basic information generated from the file derived from the recording process is used, such as Figure 4 As shown, after the first 5 fi...

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Abstract

The invention relates to a digital file recording and access method comprising, the output file generating basic information, determining whether the individual to be produced is a file or a file directory, if the individual to be produced is a file, then recording the data starting file cluster in a field of non-employment, if the individual is a directory list, assigning a file recording data starting file cluster.

Description

technical field [0001] The present invention relates to a digital file recording method, in particular to a digital file recording method related to a portable digital file regeneration and recording storage medium storing digital files. Background technique [0002] Recently, a variety of digital audio products such as portable MP3 players have been mass-produced and sold, most of which use flash memory cards as storage media. [0003] The above-mentioned flash memory can store stored data even without power supply, and is easy to store and delete regularly. [0004] The file system of the flash memory card used on most portable machines now, considering its relatively small capacity and its interchangeability, all use the DOS floppy disk file system--FAT12, because it uses such a FAT12 file system, so the flash memory card can easily access the file system without other devices on the PC and external machines. [0005] When the total number of file clusters in the storag...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G11B20/10G11B27/036
Inventor 金炯进
Owner LEJIN GUANGDIAN ELECTRONIC CO LTD SHANGHAI