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Information storage device and method

A technology for information storage and information writing, applied in the field of electronics, can solve the problem of low information storage density and achieve the effect of effective storage

Active Publication Date: 2015-03-25
HUAWEI TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Embodiments of the present invention provide an information storage device and method to solve the problem of low information storage density of information storage devices using magnetic domain wall movement in the prior art

Method used

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  • Information storage device and method

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0045] An embodiment of the present invention provides an information storage device, including:

[0046] A magnetic track, the magnetic track is composed of a plurality of magnetic domains, a magnetic domain wall (not shown in the figure) is included between every two magnetic domains, and each magnetic domain is divided into at least two magnetic regions;

[0047] A writing unit is arranged on the magnetic track, and information is written in at least two magnetic regions of each magnetic domain through the writing unit.

[0048] The reading unit is arranged on the magnetic track, through which the information written in at least two magnetic regions of each magnetic domain is read.

[0049] In the following embodiments, the magnetic domains are firstly divided into two magnetic regions, namely: as figure 2 shown in figure 2 Each of the magnetic domains 202 respectively includes the first magnetic region 202a and the second magnetic region 202b to illustrate the technica...

Embodiment 2

[0081] In Embodiment 1, it is described that a magnetic domain 202 can be divided into two magnetic regions. In the embodiment of the present invention, the situation that a magnetic domain 202 can be divided into multiple magnetic regions is also included. For example, a magnetic domain can be divided into two magnetic regions. 202 divides into 4 magnetic regions, and the following describes the situation of dividing into 4 magnetic regions. which is: Figure 7 A magnetic domain is divided into 4 magnetic regions, the first magnetic region 701a, the second magnetic region 701b, the third magnetic region 701c, and the fourth magnetic region 701d, each of the 4 magnetic regions can be They are all formed using different magnetic materials. Of course, the two magnetic regions can also be formed using the same material, and the two outer magnetic regions are formed using other materials. Simply speaking, the first magnetic region 701a and the third magnetic region 701c have the ...

Embodiment 3

[0087] Corresponding to an information storage device in the embodiment of the present invention, the embodiment of the present invention also provides an information storage method, such as Figure 8 Shown is a flow chart of an information storage method in an embodiment of the present invention, and the method includes:

[0088] Step 801 , when a predetermined pulse current is detected, each magnetic domain including at least two magnetic regions on the magnetic track is moved to a position corresponding to a writing unit.

[0089] Step 802, write information in the at least two magnetic regions by a writing unit.

[0090] Step 803, read the information written in at least two magnetic regions by the reading unit.

[0091] First of all, the information storage method in the embodiment of the present invention is applied to a storage device, which includes a magnetic track for storing information, a writing unit for writing information, and a reading unit for reading informa...

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Abstract

The embodiment of the invention provides an information storage device and method. The device comprises a magnetic track, a write-in unit and a read unit. The magnetic track is composed of multiple magnetic domains and each magnetic domain is divided into at least two magnetic regions. The write-in unit is arranged on the magnetic track and information is written in the at least two magnetic regions of each magnetic domain through the write-in unit. The read unit is arranged on the magnetic track and the information written in the at least two magnetic regions of each magnetic domain is read through the read unit, so that multiple pieces of effective information is written in each magnetic domain of the magnetic track, the storage density of the magnetic track is increased, and the storage capacity of the storage device is improved.

Description

technical field [0001] The present invention relates to the field of electronic technology, in particular to an information storage device and method. Background technique [0002] In recent years, research on data storage devices that store data using magnetic domain wall movement has increased. Micromagnetic regions constituting a magnetic body may be referred to as magnetic domains, and directions of magnetic moments as a result of rotation of electrons in the magnetic domains may be substantially the same. The size and magnetization poles of the magnetic domains can be appropriately controlled using the shape and size of the magnetic material and external energy. A magnetic domain wall may refer to a boundary region between magnetic domains having different magnetic polarizations, and may be moved by applying a magnetic field or current to a magnetic material. [0003] Such as figure 1 Shown is a schematic structural diagram of a nano-magnetic track storage device in ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G11B5/39
CPCG11B5/02G11C11/02G11C11/15G11C11/5607G11C19/0808G11C19/0841G11B2005/0002G11C11/161G11C11/1673G11C11/1675G11B5/09
Inventor 林殷茵傅雅蓉杨凯杨伟王元钢赵俊峰
Owner HUAWEI TECH CO LTD