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Memory device and its reading and writing method

A storage device and storage page technology, applied in information storage, static memory, read-only memory, etc., can solve the problems of affecting the performance of writing data, increasing the number of times of erasing and moving writing, and the large difference in writing performance.

Active Publication Date: 2010-01-20
ALCOR MICRO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the flash memory access device, if the above-mentioned processes of collecting, moving and specifying addresses are performed too frequently, the number of times of erasing and moving and writing will be increased, which will relatively affect the overall performance of writing data. For example in Microsoft Windows The above-mentioned process will be carried out most frequently under the operating system, so the difference in writing performance is also the largest

Method used

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  • Memory device and its reading and writing method
  • Memory device and its reading and writing method
  • Memory device and its reading and writing method

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Embodiment Construction

[0038] Please also refer to Figure 3A with Figure 3B , which is a block diagram of a preferred embodiment of the storage device of the present invention and a structural schematic diagram of the flash memory applied in the present invention, such as Figure 3A As shown, the present invention provides a storage device 1 suitable for reading and writing data with an external system 10 , which includes: a flash memory 30 and a control unit 40 . The flash memory 30 is used as storage for reading and writing data, and the flash memory 30 includes a plurality of storage blocks 31, and each storage block 31 has a plurality of storage pages 301. In addition, the storage blocks 31 can be distinguished on the logical address For at least one special data management area and at least one general data management area (such as Figure 3B shown), but actually on the physical address of the flash memory 30, the storage blocks 31 in the special data management area and the general data mana...

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Abstract

The invention discloses a storing device and the method of accessing the device. Firstly the logic blocks corresponding to the flash memory is defined to include at least one special data managing area and a general data managing area, and special data and general data are separately processed aiming at the data transmitted to and from the external system. A dynamic offset writing method is used for the special data managing area, and an identical offset writing method is used for the general data managing area. So the special data managing area is prevented from frequently moving data because of timely updating of the external system, and the flash reading and writing efficiencies are increased.

Description

technical field [0001] The invention relates to a storage device and a read-write method thereof, in particular to a storage device using a memory as a storage medium for improving read-write performance and a storage device and a method thereof. Background technique [0002] In recent years, due to the rapid development of 3C industries such as computers (Computer), communications (Communication) and consumer electronics (Consumer Electronics), various products use built-in flash memory or read external memory cards as media for storing data , seems to be one of the must-have features. However, with the frequency of data access by users and the increase in the amount of data to be accessed, the speed at which the device can read and write storage media has become a key point for users to refer to when purchasing products. [0003] Although flash memory has many advantages such as small size, large capacity, power saving, non-volatility, and shock resistance, it has two har...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G11C16/06G11C16/26
Inventor 张琦栋后嘉伟徐国祥郑文豪
Owner ALCOR MICRO CORP