Memory card for digital player and its file writing and reading method

A memory card and player technology, which is applied in recording information storage, record carrier used by machines, memory address/allocation/relocation, etc.

Inactive Publication Date: 2004-03-31
LEJIN GUANGDIAN ELECTRONIC CO LTD SHANGHAI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0010] Therefore, although there is a storage space of the combined size of two or more physical storage devices, when the size of the music file exceeds the size of one physical storage device, it cannot be stored, so there is a problem that the storage space cannot be effectively used.

Method used

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  • Memory card for digital player and its file writing and reading method
  • Memory card for digital player and its file writing and reading method
  • Memory card for digital player and its file writing and reading method

Examples

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Embodiment Construction

[0027] Fig. 2 is the block diagram that is applicable to the structure of the memory card device of digital player of the present invention, and PC software 1 allows user to select " connection mode " or " general mode " as the use mode of memory card 4,5, and device driver 2 then uses user's The request is transmitted to the microchip 3 of the MP3 player through the USB cable, and the microchip 3 controls the memory cards 4 and 5 according to the requirements of the above-mentioned device driver 2 to read or write.

[0028] Generally, if the user wishes that the memory cards 4 and 5 have respective FAT information, then the FAT information can be stored in the respective memory cards 4 and 5 . What Fig. 3 represented is the structure of general memory card 4,5, and it mainly comprises the partition area that stores the relevant location information of each partition, the MBR (Master Boot Record) area that stores operating system location information, the user area that stores ...

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Abstract

The invention relates to a storage card FAT filing system and music file write-in and reading method, dividing a plurality of card storage area into a master card and a slave card on the digital player having a plurality of storing card composed of management areas including stored practical data of the user area. Combining all the FAT information records of the storing card in the management area selected to the main card, while the storing card that is selected to be the slave card is used for recording the receipt data.

Description

technical field [0001] The invention relates to a memory card suitable for a digital player and a file writing / reading method thereof, in particular to storing only FAT (file allocation table) information in order to effectively utilize storage space when a plurality of physical memory cards are used continuously A memory card suitable for a digital player and a file writing / reading method thereof in one card. Background technique [0002] Recently, with the rapid popularization of MP3 players, various storage devices used in MP3 players are increasing, including ATA flash memory cards, compact flash memory cards, and MMC cards. [0003] The above-mentioned ATA flash memory card, compact flash memory card, MMC card, and SD card have their own methods for storing files, and the typical one is the FAT file system. [0004] The large FAT file system can be divided into partition area, system area, and user area. The part that can actually store data is the user area, and the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F12/06G06K19/07G11B31/00
Inventor 郑泰焕
Owner LEJIN GUANGDIAN ELECTRONIC CO LTD SHANGHAI
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