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Flash memory document management system and method

A file management method and file management system technology, applied in the direction of electrical digital data processing, special data processing applications, instruments, etc., can solve the problems of many bad blocks in flash memory and affect the service life, and achieve balance loss, prolong service life, The effect of ensuring safety

Inactive Publication Date: 2005-05-25
HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method cannot provide a solution to the loss balance of the flash storage unit, and it may cause too many local bad blocks of the flash memory due to over-frequency erasing and writing of a certain part of the flash memory, which will affect its service life

Method used

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  • Flash memory document management system and method
  • Flash memory document management system and method
  • Flash memory document management system and method

Examples

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Embodiment Construction

[0016] see figure 1 Shown is a schematic diagram of the file structure setting of the flash memory file management system of the present invention. In the present invention, each storage block (block) in the flash memory is set as a node unit 1, and these node units 1 can have different sizes, but each node unit 1 is provided with a node header information area 10, Data area 11 and node status information area 12. In the embodiment of the present invention, flash files are stored in one or more node units 1 according to their size. Wherein the data area 12 is used to store the specific contents of these flash memory files.

[0017] see figure 2 shown, is figure 1 Schematic diagram of the middle node header information area. The node header information area 10 is used to store the basic information of the node unit, which includes node type 100 , node length 101 and a node header cyclic redundancy check message 102 .

[0018] see image 3 shown, is figure 1 Schematic d...

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Abstract

The present invention relates to a flash storage file management system and its method. It can manage writing and updating operation of the flash storage file, and can belance the loss of flush storage memory unit. Said invention also provides the concrete steps for implementing said management method. The utilization of said invented system and method can prolonge service life of flash memory.

Description

【Technical field】 [0001] The invention relates to a flash memory file management system and method, in particular to a flash memory file management system and method capable of balancing the loss of flash memory storage units. 【Background technique】 [0002] Currently, personal portable electronic products mainly use two methods to store user data, one is to store user data in Random Access Memory (RAM), and the other is to store it in flash memory (Flash Memory). Because RAM storage can only save data when the power supply is maintained, otherwise the data will be lost. Therefore, random access memory is generally used to save temporary data. Flash memory is the most common non-volatile memory (Non-Volatile Memory, NVM). When using flash memory to save data, it can generally prevent the system from losing stored user data when the battery is dead. However, due to the random read, sector-by-sector, and block-by-block features of flash memory, if the system is performing an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/30
Inventor 娄长剑何唐
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD
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