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Data storage method

A technology of data storage and memory card, which is applied in the field of data storage of memory card, which can solve the problems of increasing equipment cost, occupying processing resources, inconvenient application of memory card, etc., and achieves the effect of reducing processing cost, saving processing resources and facilitating application

Inactive Publication Date: 2009-03-11
INNOFIDEI TECHNOLOGIES INC
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  • Abstract
  • Description
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Problems solved by technology

However, for a small communication device without a software operating system, it is necessary to write a special program, read the relevant information in the memory card and perform a large number of judgment operations to determine the storage format of the memory card. The relatively scarce processing resources in Zhongyuan, on the other hand, increase the cost of equipment, which brings a lot of inconvenience to the application of memory cards in small communication equipment

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Embodiment Construction

[0026] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and examples.

[0027] The main idea of ​​the present invention is to partition the storage space of the memory card, and store corresponding auxiliary information for completing read and write operations in a specific area, such as: file format information, initial storage address, length and data type of the file information, etc., so that before the memory card read and write operation, there is no need to make complex judgments about the storage format of the memory card, and the position of the file to be operated in the memory card can be determined directly according to the correspondence between the preset area and information , so that the memory card can be very conveniently applied to a small communication device without a software operating system, so as to ...

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Abstract

The invention discloses a data storing method applicable to memory cards. The method comprises the steps that the storage space of a memory card is divided in advance into a file information area used for storing file format information, a data information area used for storing the information of the initial storage address, the length and the data type of each file, and a data area; the method also includes that: the specific content of the corresponding file is stored in the corresponding storage space of the data area according to the file format information in the file information area and the information of the initial storage address, the length and the data type of each file in the data information area. The application of the method ensures that the memory card can be quite conveniently used in small communication equipment without a software operation system, thus enhancing the universality of the memory card.

Description

technical field [0001] The invention relates to data storage technology, in particular to a data storage method suitable for memory cards. Background technique [0002] At present, the memory card is being more and more widely used in various fields of people's production and life due to its small size, large capacity, and portability. Common memory cards include: standard flash memory card (CF: Compact Flash), multi-mode communication card (MMC: Multi-Media Card) and secure data card (SD: Secure Digital Card). [0003] As a data storage device, the memory card can store data in formats such as FAT12, FAT16, FAT32 or NTFS. Based on different data storage formats, the size of the root directory, partition table, and FAT table of the memory card will be different, and the partition table and FAT table contain important auxiliary information for data storage. Before the card reads and writes, the storage format based on the memory card must be determined first, and then the r...

Claims

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Application Information

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IPC IPC(8): G06F3/06G06F12/02
Inventor 张辉王西强张江辉
Owner INNOFIDEI TECHNOLOGIES INC
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