CN106909311A - Data memory device and its storage method - Google Patents
Data memory device and its storage method Download PDFInfo
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- CN106909311A CN106909311A CN201510979309.4A CN201510979309A CN106909311A CN 106909311 A CN106909311 A CN 106909311A CN 201510979309 A CN201510979309 A CN 201510979309A CN 106909311 A CN106909311 A CN 106909311A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
- G06F3/0601—Interfaces specially adapted for storage systems
- G06F3/0628—Interfaces specially adapted for storage systems making use of a particular technique
- G06F3/0638—Organizing or formatting or addressing of data
- G06F3/0644—Management of space entities, e.g. partitions, extents, pools
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
- G06F3/0601—Interfaces specially adapted for storage systems
- G06F3/0602—Interfaces specially adapted for storage systems specifically adapted to achieve a particular effect
- G06F3/062—Securing storage systems
- G06F3/0622—Securing storage systems in relation to access
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
- G06F3/0601—Interfaces specially adapted for storage systems
- G06F3/0668—Interfaces specially adapted for storage systems adopting a particular infrastructure
- G06F3/0671—In-line storage system
- G06F3/0673—Single storage device
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- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Storage Device Security (AREA)
Abstract
The present invention discloses a kind of data memory device and its storage method, and wherein this data memory device includes a physical storage block, an authentication unit and a control unit with a unique identifier.Control unit can be electrically connected with this physical storage block and receive this unique identifier to produce an identification to instruct, control unit simultaneously can instruct to produce a logical blocks initial value and a usable capacity according to this identification, and block is accessed with the reality determined in physical storage block according to this logical blocks initial value and this usable capacity, logical blocks initial value is a positive integer, and the actual size for accessing block is less than or equal to the size of physical storage block.
Description
Technical field
The present invention has peace on a kind of data memory device and its storage method in particular to one kind
Full property and the data memory device and its storage method of elastification.
Background technology
For many years, the tide for moving towards technicalization and modernization from human civilization so far, the Techniques of preserving of data
Convergence is improved and ripe for development.Industry has also developed diversified storage device, wherein again with solid-state
Hard disk (Solid-State Disk, SSD) is mainstream development product.
In general, solid state hard disc is from the inch size of standard type 2.5 to small-sized module and chip form, by
Utilization rate is gradually improved to substitute conventional hard (Hard-Disk Drive, HDD).Due to the solid state hard disc commonly used
All operated in the way of single disk, and the sequence high-tech configuration transmission that main flow solid state hard disc is used
(Serial Advanced Technology Attachment, SATA) interface characteristically, single transmission port
(Port) it is only capable of connecting and recognizing single disk, therefore when the solid state hard disc of a system configuration one is for multiple users
When using, can generally be divided into two kinds of modes：One is the mode of account management, is by operating system
System manager be managed to the disk of each user using amount and authority；Second it is multiple boot
Mode, is the main segmentation of most four disks by single solid state hard disc logical division, so that different users make
With.
However, two kinds of foregoing modes change in lower order system or by solid state hard disc withdrawing and adopt external grade and use feelings
Under border, all directly may crack by external access or via software and enter line access, in the security of data
On still be apparent not enough.Further, since single solid state hard disc is at most only capable of logical division for four main segmentations of disk,
And cause that system administration is limited everywhere, and in more adding non-essential expenditure on system hardware cost.
The content of the invention
It is to provide a kind of data memory device and its storage method that the purpose of the present invention is, it can be utilized
Control unit in solid state hard disc to split the size and number of the access block in nand flash memory again,
To solve the problems, such as the above.
The present invention provides a kind of data memory device, and it includes a physical storage block, is uniquely marked with one
Know an authentication unit and a control unit of symbol.Control unit can be electrically connected with this physical storage block simultaneously
This unique identifier is received to produce an identification to instruct, and control unit can instruct to produce according to this identification
One logical blocks initial value and one can be used capacity, and according to this logical blocks initial value and this can be used
To determine the actual access block in physical storage block, logical blocks initial value is one just whole to capacity
Number, and the actual size for accessing block is less than or equal to the size of physical storage block.
Preferably, disk of the physical storage block comprising a nand flash memory or a hard disk.
Preferably, control unit is a controller.
Preferably, authentication unit includes a USB portable disks or a storage card.
Preferably, also comprising detection reading device, detection reading device can for data memory device of the invention
Control unit is electrically connected to, and detection reading device detects or reads the unique identifier of authentication unit,
And transmit unique identifier to control unit.
Preferably, detection reading device is a radio frequency identification (RFID, Radio Frequency
Identification) reading device, authentication unit can be a RFID tag.
Preferably, detection reading device is that a barcode scanner, a fingerprint sensor or an iris are passed
Sensor.
Preferably, the number of actual access block is more than or equal to 4.
Based on above-mentioned purpose, the present invention provides a kind of data memory device again, and it includes a physical storage area
Block and a control unit.Control unit can be electrically connected with physical storage block, and control unit can be according to one
Control instruction to produce multiple logical blocks initial values and corresponding multiple that capacity can be used, and according to many
Individual logical blocks initial value and multiple usable capacity are actually deposited with the multiple determined in physical storage block
Take block.
Preferably, multiple actual access blocks correspond to multiple unique identifier, and multiple unique marks respectively
The information of symbol is stored in control unit.
Preferably, identification instruction can be comprising one of multiple unique identifiers, and control unit can root
According to identification instruction with one of multiple actual access blocks of correspondence access.
Based on above-mentioned purpose, the present invention provides a kind of data storage method again, and it is applied to one and includes a control
On the data memory device of unit processed, an authentication unit and a physical storage block, this authentication unit bag
Containing a unique identifier, this storage method is comprised the steps of.According to unique identifier producing identification to refer to
Order.Instructed to produce logical blocks initial value and usable capacity according to identification.Risen according to logical blocks
Initial value and usable capacity are determining the actual access block in physical storage block.In actual access section
Access action, the formatting of read-write motion of the access action comprising archives or actual access block are performed on block
Action.
Preferably, data storage method of the invention is also comprising by the unique of control unit reception authentication unit
Identifier.
Preferably, authentication unit includes a USB portable disks or a storage card.
Preferably, data storage method of the invention also includes to utilize and detects reading device to detect or read
The unique identifier of authentication unit, and transmit unique identifier to control unit.
Preferably, detection reading device is a radio frequency identification (RFID, Radio Frequency
Identification) reading device, authentication unit can be a RFID tag.
Preferably, detection reading device is that a barcode scanner, a fingerprint sensor or an iris are passed
Sensor.
From the above, according to data memory device of the present invention and its storage method, can have multiple following excellent
Point：
(1) storage device can be divided into multiple actual access blocks so that multiple users can share this
Single storage device, and number of users no maximum, in addition to the limitation that can reduce system administration, can more enter
The hardware cost of one step reduction system.
(2) can be accessed according to unique identifier correspondence the actual access block to be used, with avoid without
The user of accreditation accesses this storage device or cracks this storage device with software.
Brief description of the drawings
Fig. 1 is the block diagram of data memory device of the invention.
Fig. 2 is the schematic diagram of data memory device of the invention.
Fig. 3 is the block diagram of another embodiment of data memory device of the invention.
Fig. 4 is the schematic diagram of another embodiment of data memory device of the invention.
Fig. 5 is the block diagram of the second embodiment of data memory device of the invention.
Fig. 6 A are the first schematic diagram of the second embodiment of data memory device of the invention.
Fig. 6 B are the second schematic diagram of the second embodiment of data memory device of the invention.
Fig. 6 C are the 3rd schematic diagram of the second embodiment of data memory device of the invention.
Fig. 6 D are the 4th schematic diagram of the second embodiment of data memory device of the invention.
Fig. 7 is the flow chart of data storage method of the invention.
Specific embodiment
For the benefit of understand technical characteristic of the invention, content and advantage and its effect to be reached, hereby will
The present invention coordinates accompanying drawing, and as follows with the expression-form detailed description of embodiment, and the figure used in it
Formula, its purport be only illustrate and aid in illustrating book use, may not be the present invention implement after actual proportions with
Precisely configuration, therefore the ratio of schema that should not be just appended is closed with configuration and understands, limits the invention to actual reality
The interest field applied, conjunction first chats bright.
Fig. 1 is referred to, it is the block diagram of data memory device of the invention.As illustrated, data are stored up
Cryopreservation device 100 can include a physical storage block 10, a control unit 20 and an authentication unit 30,
Wherein physical storage block 10 can be the disk of a nand flash memory or a hard disk, and control unit 20 can be
One controller, authentication unit 30 can be the USB portable disks or for storing a unique identifier 31
Storage card, and this control unit 20 is electrically connected to physical storage block 10.
In this embodiment, data memory device 100 can be electrically connected to an electronic installation, such as computer,
Notebook computer or work station, thus electronic installation produce and an access instruction and be sent to control unit 20
On, then thus control unit 20 accesses stored data on physical storage block 10, and then return
This data is so far on electronic installation.And authentication unit 30 can pass through a corresponding port connection so far electronics
On device, such as a USB port or a calculating punch, and then thus electronic installation transmission includes this
One identification instruction 21 to control unit 20 of the unique identifier 31 in authentication unit 30.
In the present embodiment, control unit 20 can instruct 21 to produce a predefined logic according to identification
Block initial value 22 and one can be used capacity 23, and according to this logical blocks initial value 22 and can be used
Capacity 23 accesses block 11, wherein this logical blocks with the reality determined in physical storage block 10
Initial value 22 is a positive integer, and the size of actual access block 11 is less than or equal to physical storage block 10
Size.
Different from prior art, the present invention and not exist single solid state hard disc logical division be most 4
The limitation of the main segmentation of disk, the number of the actual access block 11 that the present invention is split can be more than or equal to
4, in other words, actual access block 11 of the invention is equal to the main segmentation of disk of the prior art, and
Compared to prior art, it is of the invention then more elasticity.And the authentication unit 30 that user is held it is inserted
To electronic installation, user can only be accessed corresponding to its unique identifier 31 in physical storage block 10
Actual access block 11, and user cannot know whether that other actual access blocks 11 are present,
The data that cannot more access or spy upon in other actual access blocks 11.Therefore, can also improve and use this
Security during data memory device 100.
Fig. 2 is referred to, it is the schematic diagram of data memory device of the invention.And please also refer to Fig. 1.
Data memory device 100 in the present embodiment is with a solid state hard disc come example of illustrating, and physical storage area
Block 10, control unit 20 and authentication unit 30 are then respectively with a nand flash memory, controller and one
USB portable disks are come implementation of illustrating.As shown in Fig. 2 the addressing in this physical storage block 10 can be with 1024
Individual logical block addresses (Logical Blocking Address) LBA0~LBA1023 represents, wherein
LBA0 represents accessible first logical blocks, and LBA1023 then represents accessible 1024th logic
Block, and because the addressing technique of logical block addresses is to have in computer association area usual knowledge
In ripe prior art, therefore do not repeated herein.
And in the present embodiment, after authentication unit 30 is inserted into the USB port of main frame 51 again
During the action for booting up, this main frame 51 can immediately by the unique identifier in authentication unit 30
31 are sent to control unit 20 in the form of an identification instruction 21, and now control unit 20 can be according to this only
One identifier 31 accesses block 11 to obtain an accessible reality on physical storage block 10.Value
Obtain one to be mentioned that, the reality corresponding to each unique identifier 31 can be in advance stored in control unit 20
The logical blocks initial value 22 and usable capacity 23 of border access block 11.
Explain, the mode for obtaining this actual access block 11 is risen according to predefined logical blocks
Initial value 22 and capacity 23 can be used to determine, for example, the acquiescence of this logical blocks initial value 22
Value can be LBA50, and the default value of usable capacity 23 can be 78, then actual access block 11 then may be used
To have 78 logical blocks, i.e. LAB50~LBA127.In the present embodiment, this usable capacity 23
Illustrated with the number of logical blocks implementation, but be not limited thereto, it can also be directly empty with an access
Between size represent, such as 10GB.
Furthermore, when the operating system of main frame 51 assigns the writing commands of a data to number
During according to storage device 100, the writing commands of this data are now understood by control unit 20 in physical storage area
An address on block 10, such as this address can be LBA10, and control unit 20 is also by this address simultaneously
Along with logical blocks initial value 22, i.e. LBA50 so that this data be actually written into address be then
In the logical block addresses of LBA60.Consequently, it is possible to main frame 51 can be according to different unique marks
Symbol 31 provides different actual access blocks 11 to a user, and this user can actually deposit herein
The authority for possessing super user on block 11 is taken, the filling again of system, actual access block 11 is such as carried out
Formatting etc..
Fig. 3 and Fig. 4 is referred to, it is the block diagram of another embodiment of data memory device of the invention
And schematic diagram.As shown in figure 3, being the data memory device of this embodiment with the difference of above-described embodiment
100 can also comprising a detection reading device 40, and this detection reading device 40 is electrically connected to control unit
20, and detection reading device 40 may be used to detect or read the unique identifier 31 of authentication unit 30, and
Transmission unique identifier 31 to control unit 20, wherein this detection reading device 40 can be known comprising a radio frequency
Not (RFID, Radio Frequency Identification) reading device, a barcode scanner,
One fingerprint sensor or an iris sensor.
As shown in figure 4, in the present embodiment, the data memory device 100 in the present embodiment is with a solid-state
Hard disk is come example of illustrating, and physical storage block 10, control unit 20, authentication unit 30 and detection
Reading device 40 is then read with a nand flash memory, controller, a RFID labels and a RFID respectively
Device is come implementation of illustrating.
Detection reading device 40 can be connected to main frame by user before the start of main frame 51
On 51, and this authentication unit 30 is positioned within a valid analysing range of detection reading device 40.
And work as main frame 51 start shooting after, this detection reading device 40 just can directly by it is detected only
One identifier 31 is sent to main frame 51, then thus main frame 51 by this unique identifier 31
It is sent in the control unit 20 of data memory device 100.
Then control unit 20 can produce a predefined logical blocks according to this unique identifier 31
Initial value 22 and one can be used capacity 23, and then determine actually depositing in physical storage block 10
Take block 11.The producing method of wherein this actual access block 11 is described in above-described embodiment, therefore
This is not repeated.
It is known that this data memory device of preferred embodiment application of the invention is calculated in one more than
In machine classroom or a laboratory, it can support that multiple users use same computer in different periods,
Each of which user is owned by the authentication unit comprising a unique identifier, and user can utilize
This unique identifier carrys out the actual access block of institute's predefined in accessing computer, it is worth mentioning at this point that,
Each user can possess the authority of a super user to access this actual access block, and this
The number of actual access block can be more than or equal to 4.
Fig. 5 is referred to, it is the block diagram of the second embodiment of data memory device of the invention.Such as Fig. 5
Shown, data memory device 200 can include a physical storage block 210 and a control unit 220,
Wherein this physical storage block 210 can include the disk of a nand flash memory or a hard disk, and this control is single
Unit 220 can be a controller, and this control unit 220 is electrically connected to physical storage block 210.
In this embodiment, data memory device 200 is electrically connected to a main frame, and refers to from the control of main frame reception one
62 are made to split the actual access block 211 of the multiple on physical storage block 210, wherein this control instruction
62 can be used capacity 223 and multiple comprising multiple logical blocks initial values 222, corresponding multiple
Unique identifier 231.
Further instruction, when control unit 220 splits multiple actual access blocks according to control instruction 62
When 211, control unit 220 need to store this multiple unique identifier 231 and its corresponding logic area
Block initial value 222 and usable capacity 223.
As described by preceding embodiment, it is used in combination when this control unit 220 receives a unique identifier 231
To produce during an identification instruction 221, this identification instruction 221 just can be according to this unique identifier 231 with right
Predefined logical blocks initial value 222 and usable capacity 223 should be arrived, and then obtains actual access section
The logical block addresses of block 211, wherein related addressing system is described in above-described embodiment, therefore
This is not repeated.
Fig. 6 A to Fig. 6 D are referred to, it is the first of the second embodiment of data memory device of the invention
Schematic diagram is to the 4th schematic diagram.Also referring to Fig. 5, as shown in Figure 6A, in this embodiment, data
Storage device 200 is a solid state hard disc, and the size of physical storage block 210 is illustrated implementation with 1TB,
And this data memory device 200 is connected to a main frame 251.It is noted that due to this hair
It is bright to be related to again be split the physical storage block 210 on data memory device 200, therefore must be
The segmentation action of physical storage block 210 is carried out before BIOS loading boot sector of hard disk.
In this embodiment, user can will contain a system identifier before the start of main frame 251
Authentication unit 230 insert on so far main frame 251, and work as main frame 251 start shooting after,
Then by this system identifier of BIOS certifications and control unit 220 can be notified, allow user to carry out entity
The segmentation action of block 210 is stored, wherein this system identifier represents that the user has variation this entity storage
Deposit a complete authority of block 210.It is noted that user can also otherwise possess
This complete authority, for example, eject a window, and require user in this window when main frame 251 is started shooting
Mouth one password of input, once after password meets, then an application program is performed by main frame 251
Service, the action of this physical storage block 210 split to provide user.
Hereinafter explanation user splits the process of this physical storage block 210 through main frame 251.It is first
First, the application program that user can be passed through on main frame 251 learns current this data memory device
200 size, and including on the screen 60 of main frame 251.As shown in Figure 6A, exist
This screen 60 shows four actual logical blocks initial values and usable capacity for accessing block 211, and
Because each actual access block 211 has impartial size, therefore can learn that its size is respectively
250GB, the scope of wherein this four pieces logical block addresses of actual access block 211 be respectively LBA0~
LBA255, LBA256~LBA511, LBA512~LBA767 and LBA768~LBA1023, its signal
Figure refers to Fig. 6 B.
Then, user can change actual access section on this data memory device 200 through this application program
The size of block 211, as shown in Figure 6 C, the visual demand of user set different logical blocks initial values and
Capacity can be used, and then produces different actual access blocks 211, as shown in Figure 6 D.It is worth mentioning
It is that the number of the actual access block 211 split through this mode can be more than or equal to 4, and
The inner unique identifier 231 that will respectively store this multiple actual access block 211 of correspondence of control unit 220.
Afterwards, this data storage is accessed using one of unique identifier 231 when there is another user
During device 200, control unit 220 can produce an identification according to received unique identifier 231
Instruction 221, further, control unit 220 is corresponding to access its further according to this identification instruction 221
One actual access block 211, such as from the actual access block 211 of 128~LBA of LBA 257, in fact
Border access mode is described in above-described embodiment, therefore is not repeated herein.
Fig. 7 is referred to, it is the flow chart of data storage method of the invention.As illustrated, this data
Storage method is applied to the data comprising a control unit, an authentication unit and a physical storage block
On storage device, it is comprised the steps of.
Step S11 according to a unique identifier with produce an identification instruct.
Step S12 is instructed according to identification to obtain a logical blocks initial value and a usable capacity, its
In this logical blocks initial value and usable capacity can be stored in control unit in advance.
Step S13 is according to logical blocks initial value and usable capacity determining in physical storage block
One actual access block.
Step S14 performs an access action on actually access block, and wherein this access action includes archives
Read-write motion or actual access block formatting action.
In this data storage method, also comprising the unique identifier that an authentication unit is received by control unit,
Wherein this authentication unit can include a USB portable disks or a storage card.
In this data storage method, also comprising using a detection reading device detecting or read certification list
The unique identifier of unit, and transmit unique identifier to control unit.Wherein this detection reading device can be
One radio frequency identification (RFID, Radio Frequency Identification) reading device, authentication unit
It can be a RFID tag.But it is not limited, detection reading device can also be a bar code scanning
Instrument, a fingerprint sensor or an iris sensor, and authentication unit can then be respectively a bar code or
One fingerprint or iris of human body.
In summary described, data memory device of the invention and its storage method really can be by storage devices
Multiple actual access blocks are divided into, allow multiple users to share this single storage device, except that can reduce
Outside the limitation of system administration, the hardware cost of system also can be further reduced.And pass through unique identifier
The mode of the actual access block of access correspondence, it is also possible to increase the security of this storage device, to reach simultaneously
To simplified system administration, realize the effects such as multiple boot and data safety are protected.
Illustrative is the foregoing is only, rather than is restricted person.It is any without departing from it is of the invention spirit and model
Farmland, and the equivalent modifications that are carried out to it or change, are intended to be limited solely by appended claims.
Claims (17)
1. a kind of data memory device, it is characterised in that the data memory device is included：
Physical storage block；
Authentication unit, with unique identifier；
Control unit, is electrically connected with the physical storage block, and described control unit receives the unique mark
Symbol is held according to the identification instruction with producing identification to instruct with producing logical blocks initial value and can be used
Amount, and according to the logical blocks initial value and the usable capacity determining in the physical storage block
In actual access block, wherein the logical blocks initial value is positive integer, and the actual access block
Size less than or equal to the physical storage block size.
2. data memory device as claimed in claim 1, it is characterised in that the physical storage block
Disk comprising nand flash memory or hard disk.
3. data memory device as claimed in claim 1, it is characterised in that described control unit is control
Device processed.
4. data memory device as claimed in claim 1, it is characterised in that the authentication unit is included
USB portable disks or storage card.
5. data memory device as claimed in claim 1, it is characterised in that also read dress comprising detection
Put, wherein the detection reading device is electrically connected to described control unit, and the detection reading device inspection
The unique identifier of the authentication unit is surveyed or read, and transmits the unique identifier to the control
Unit.
6. data memory device as claimed in claim 5, it is characterised in that the detection reading device
It is radio frequency recognition reading device, the authentication unit is RFID tag.
7. data memory device as claimed in claim 5, it is characterised in that the detection reading device
It is barcode scanner, fingerprint sensor or iris sensor.
8. data memory device as claimed in claim 1, it is characterised in that the actual access block
Number be more than or equal to 4.
9. a kind of data memory device, it is characterised in that the data memory device is included：
Physical storage block；And
Control unit, is electrically connected with the physical storage block, and described control unit is according to control instruction producing
Raw multiple logical blocks initial value and corresponding multiple can be used capacity, and according to the multiple logical blocks
Initial value and the multiple usable capacity are accessed with determining that the multiple in the physical storage block is actual
Block.
10. data memory device as claimed in claim 9, it is characterised in that the multiple actual access
Block corresponds to multiple unique identifier respectively, and the information of the multiple unique identifier is stored in the control
In unit.
11. data memory devices as claimed in claim 10, it is characterised in that identification instruction includes institute
One of multiple unique identifiers are stated, and described control unit is accessed according to the identification instruction with correspondence
One of the multiple actual access block.
12. a kind of data storage methods, it is adaptable to comprising control unit, authentication unit and physical storage area
On the data memory device of block, wherein the authentication unit has unique identifier, it is characterised in that described
Data storage method is included：
Instruction is recognized to produce according to the unique identifier；
Instruct to produce logical blocks initial value and usable capacity according to the identification；
According to the logical blocks initial value and the usable capacity determining in the physical storage block
In actual access block；And
Access action is performed on the actual access block, wherein read-write of the access action comprising archives
Action or the formatting action of the actual access block.
13. data storage methods as claimed in claim 12, it is characterised in that also comprising by the control
Unit processed receives the unique identifier of authentication unit.
14. data storage methods as claimed in claim 13, it is characterised in that the authentication unit bag
Portable disk containing USB or storage card.
15. data storage methods as claimed in claim 13, it is characterised in that also comprising using detection
Reading device transmits the unique mark to detect or read the unique identifier of the authentication unit
Accord with to described control unit.
16. data storage methods as claimed in claim 15, it is characterised in that dress is read in the detection
Radio frequency recognition reading device is set to, the authentication unit is RFID tag.
17. data storage methods as claimed in claim 16, it is characterised in that dress is read in the detection
It is set to barcode scanner, fingerprint sensor or iris sensor.
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| CN201510979309.4A CN106909311A (en) | 2015-12-23 | 2015-12-23 | Data memory device and its storage method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111582852A (en) * | 2019-02-19 | 2020-08-25 | 华东科技股份有限公司 | Capacity changing method for storage device |
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| CN111582852A (en) * | 2019-02-19 | 2020-08-25 | 华东科技股份有限公司 | Capacity changing method for storage device |
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