CN201548955U - Solid state disk with hardware write-protection function - Google Patents
Solid state disk with hardware write-protection function Download PDFInfo
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- CN201548955U CN201548955U CN2009202063368U CN200920206336U CN201548955U CN 201548955 U CN201548955 U CN 201548955U CN 2009202063368 U CN2009202063368 U CN 2009202063368U CN 200920206336 U CN200920206336 U CN 200920206336U CN 201548955 U CN201548955 U CN 201548955U
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- state hard
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Abstract
The utility model discloses a solid state disk with a hardware write-protection function, which comprises a solid state disk controller, a solid state memory array and a hardware write-protection switch, wherein the solid state disk controller is connected with the hardware write-protection switch and the solid state memory array respectively. Preferably, the hardware write-protection switch can be embedded in or arranged outside the solid state disk. The solid state disk can work on reading/writing or read-only conditions by simple operations according to needs so as to protect computer systems and other data against being modified and guarantee safe and stable running of computers.
Description
Technical field
The utility model relates to machine element, relates in particular to a kind of solid state hard disc with hardware writing protection function.
Background technology
Solid state hard disc (Solid State Disk or Solid State Drive) is also referred to as electronic hard disc or solid-state electronic dish, the hard disk of being made up of control module and solid-state storage unit (DRAM or FLASH chip).Identical with common hard disk on the interface specification of solid state hard disc and definition, function and the using method, also consistent on product design and size with common hard disk.Because solid state hard disc does not have the rotating media of common hard disk, thereby shock resistance is splendid.The operating temperature range of its chip very wide (40～85 ℃).Be widely used in fields such as military affairs, vehicle-mounted, industry control, video monitoring, network monitoring, the network terminal, electric power, medical treatment, aviation, navigator at present.
Along with popularizing rapidly of robot calculator, the product of a series of harm computer system securities such as hacker, computer virus, computing machine wooden horse is also following, and the target that they are attacked is exactly the data in the hard disc of computer, makes computer system " in spite of illness " operation or paralysis fully.If under the networking situation, the consequence that computing machine in the whole network all can be under attack also can occur, thereby cause network paralysis or lose significant data.And method for protecting software such as present fire wall, antivirus software can only be dealt with the attack method that part has occurred; can not tackle such as virus mutation or novel attack method; can not thoroughly protect the safety of computer system; has only method by the hardware protection hard disk; do not allow their are revised, the deletion hard disc data, just can reach not under fire purpose of real protection system.
In summary, the computing machine solid state hard disc of described prior art obviously exists inconvenience and defective, so be necessary to be improved on reality is used.
The utility model content
At above-mentioned defective, the purpose of this utility model is to provide a kind of solid state hard disc with hardware writing protection function, and it can prevent that department of computer science's data of unifying from being destroyed, revising by other people, improves the security of computer system.
To achieve these goals; the utility model provides a kind of solid state hard disc with hardware writing protection function; comprise solid-state hard disk controller and solid-state memory array; described solid state hard disc also comprises a hardware writing protection switch, and described solid-state hard disk controller is connected with the solid-state memory array with described hardware writing protection switch respectively.
According to solid state hard disc of the present utility model, described hardware writing protection switch is built in described solid state hard disc.
According to solid state hard disc of the present utility model, described hardware writing protection switch is placed on described solid state hard disc.
According to solid state hard disc of the present utility model, described hardware writing protection switch is installed on the computer cabinet.
According to solid state hard disc of the present utility model, described hardware writing protection switch is installed on the key panel of computing machine.
According to solid state hard disc of the present utility model, described hardware writing protection switch is installed on the laptop case.
According to solid state hard disc of the present utility model, described solid-state memory array is flash array or dynamic RAM array.
According to solid state hard disc of the present utility model, described flash array is a nand flash memory array.
According to solid state hard disc of the present utility model, described solid-state hard disk controller comprises SATA controller, central processing unit, random access memory and solid-state memory controller.
The utility model is by disposing a hardware writing protection switch to solid state hard disc, make solid state hard disc can carry out switching between read/write and the read-only two states.Be more preferably, this hardware writing protection switch can be located at the outside of solid state hard disc, also can be arranged at the inside of solid state hard disc.Whereby, the utility model can be as required makes solid state hard disc be operated in reading and writing or only under the read states by shirtsleeve operation, and protection department of computer science other data of unifying are not modified, and it is moved safely and steadly.
Description of drawings
Fig. 1 is the solid state hard disc structural drawing of the external hardware writing protection switch of the utility model;
Fig. 2 is the solid state hard disc structural drawing of the utility model built in hardware write-protect switch;
Fig. 3 is the workflow diagram that the utlity model has the solid state hard disc of hardware writing protection function.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer,, the utility model is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
Fig. 1 is the solid state hard disc structural drawing of the external hardware writing protection switch of the utility model; this solid state hard disc 100 comprises an external hardware writing protection switch 10; by operation, can make solid state hard disc 100 be operated in read/write or read states only easily to this hardware writing protection switch 10.The user can be installed on hardware writing protection switch 10 on the key panel or laptop case of computer cabinet, computing machine according to different demands.Just can protect department of computer science's other data of unifying not to be modified by hardware writing protection switch 10 being carried out shirtsleeve operation whereby, it is moved safely and steadly.
Solid state hard disc 100 with hardware writing protection function also comprises solid-state hard disk controller 20, solid-state memory array and other peripheral circuit (not shown); the solid-state storage array can be flash array or DRAM (Dynamic Random Access Memory; dynamic RAM) array; the solid-state storage array is preferably flash array 30 in the utility model, as shown in Figure 1.Solid-state hard disk controller 20 is the core components with solid state hard disc 100 of hardware writing protection function; it comprises SATA (Serial AdvancedTechnology Attachment, Serial Advanced Technology Attachment) controller, central processing unit, random access memory and flash controller.Here, if the solid-state storage array is the DRAM array, then the flash controller in the solid-state hard disk controller 20 will be replaced by dram controller.This solid-state hard disk controller 20 is connected with flash array 30 with hardware writing protection switch 10 respectively.When system works, solid-state hard disk controller 20 can remove to read the state of hardware writing protection switch 10 earlier, is operated in read/write or read states only by the State Control solid state hard disc 100 to hardware writing protection switch 10, protects computer system whereby.Preferably, in the present embodiment, flash array 30 is a nand flash memory array, and flash controller is a nand flash memory controller.
Fig. 2 is the solid state hard disc structural drawing of the utility model built in hardware write-protect switch; solid state hard disc 100 includes hardware writing protection switch 10, solid-state hard disk controller 20 and flash array 30; solid-state hard disk controller 20 is connected with flash array 30 with hardware writing protection switch 10 respectively; and hardware writing protection switch 10 places the inside of solid state hard disc 100, makes solid state hard disc 100 be operated in read/write or only under the read states by the operation to this hardware protection switch 10.Other composition structure of solid state hard disc 100 among this embodiment is identical with the structure of solid state hard disc 100 shown in Figure 1, hard disk 100 can be made the write-protected solid state hard disc of a key whereby.
Fig. 3 is the workflow diagram that the utlity model has the solid state hard disc of hardware writing protection function, and it is realized by Fig. 1 or solid state hard disc 100 shown in Figure 2.
Step S301, system carries out the operation that writes data to solid state hard disc 100.
Step S302, solid-state hard disk controller 20 reads the state of hardware writing protection switch 10.
Step S303, the state of hardware writing protection switch 10 are high level, and solid-state hard disk controller 20 control solid state hard discs 100 enter the read/write state and carry out write operation, and data are saved in the solid state hard disc 100.
Step S304, the state of hardware writing protection switch 10 are low level, and solid-state hard disk controller 20 control solid state hard discs 100 enter a read states.This moment, solid-state hard disk controller 20 can not be carried out write operation, and data can't be saved in solid state hard disc 100.Reach the purpose of protection computer system whereby.
In sum, the utility model is by disposing a hardware writing protection switch to solid state hard disc, makes solid state hard disc can carry out switching between read/write and the read-only two states.Be more preferably, this hardware writing protection switch can be located at the outside of solid state hard disc, also can be arranged at the inside of solid state hard disc.Whereby, the utility model can be as required makes solid state hard disc be operated in reading and writing or only under the read states by shirtsleeve operation, and protection department of computer science other data of unifying are not modified, and it is moved safely and steadly.
Certainly; the utility model also can have other various embodiments; under the situation that does not deviate from the utility model spirit and essence thereof; those of ordinary skill in the art work as can make various corresponding changes and distortion according to the utility model, but these corresponding changes and distortion all should belong to the protection domain of the appended claim of the utility model.
Claims (9)
1. solid state hard disc with hardware writing protection function; comprise solid-state hard disk controller and solid-state memory array; it is characterized in that; described solid state hard disc also comprises a hardware writing protection switch, and described solid-state hard disk controller is connected with the solid-state memory array with described hardware writing protection switch respectively.
2. solid state hard disc according to claim 1 is characterized in that, described hardware writing protection switch is built in described solid state hard disc.
3. solid state hard disc according to claim 1 is characterized in that, described hardware writing protection switch is placed on described solid state hard disc.
4. solid state hard disc according to claim 3 is characterized in that, described hardware writing protection switch is installed on the computer cabinet.
5. solid state hard disc according to claim 3 is characterized in that, described hardware writing protection switch is installed on the key panel of computing machine.
6. solid state hard disc according to claim 3 is characterized in that, described hardware writing protection switch is installed on the laptop case.
7. solid state hard disc according to claim 1 is characterized in that, described solid-state memory array is flash array or dynamic RAM array.
8. solid state hard disc according to claim 7 is characterized in that, described flash array is a nand flash memory array.
9. solid state hard disc according to claim 1 is characterized in that, described solid-state hard disk controller comprises SATA controller, central processing unit, random access memory and solid-state memory controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202063368U CN201548955U (en) | 2009-10-23 | 2009-10-23 | Solid state disk with hardware write-protection function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202063368U CN201548955U (en) | 2009-10-23 | 2009-10-23 | Solid state disk with hardware write-protection function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201548955U true CN201548955U (en) | 2010-08-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009202063368U Expired - Fee Related CN201548955U (en) | 2009-10-23 | 2009-10-23 | Solid state disk with hardware write-protection function |
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| CN (1) | CN201548955U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104573574A (en) * | 2015-01-28 | 2015-04-29 | 北京汉龙思琪数码科技有限公司 | SATA (serial advanced technology attachment) hard disc write-protection method and system |
| CN105159600A (en) * | 2015-08-05 | 2015-12-16 | 中央电视台 | Data write-in control method and apparatus and information versatile disk for removable usage |
| CN106570428A (en) * | 2016-10-17 | 2017-04-19 | 江苏南世桥信息技术有限公司 | Selective hard disc write blocking card |
| CN107341415A (en) * | 2017-07-27 | 2017-11-10 | 张家港市九华科技有限公司 | A kind of solid state hard disc with hardware write-protection function |
| CN108733586A (en) * | 2017-04-19 | 2018-11-02 | 北京兆易创新科技股份有限公司 | A kind of guard method and device |
| CN110874495A (en) * | 2018-08-31 | 2020-03-10 | 深圳市安信达存储技术有限公司 | Solid state disk based on automatic locking write protection function and tamper-proof method |
-
2009
- 2009-10-23 CN CN2009202063368U patent/CN201548955U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104573574A (en) * | 2015-01-28 | 2015-04-29 | 北京汉龙思琪数码科技有限公司 | SATA (serial advanced technology attachment) hard disc write-protection method and system |
| CN105159600A (en) * | 2015-08-05 | 2015-12-16 | 中央电视台 | Data write-in control method and apparatus and information versatile disk for removable usage |
| CN106570428A (en) * | 2016-10-17 | 2017-04-19 | 江苏南世桥信息技术有限公司 | Selective hard disc write blocking card |
| CN108733586A (en) * | 2017-04-19 | 2018-11-02 | 北京兆易创新科技股份有限公司 | A kind of guard method and device |
| CN107341415A (en) * | 2017-07-27 | 2017-11-10 | 张家港市九华科技有限公司 | A kind of solid state hard disc with hardware write-protection function |
| CN110874495A (en) * | 2018-08-31 | 2020-03-10 | 深圳市安信达存储技术有限公司 | Solid state disk based on automatic locking write protection function and tamper-proof method |
| CN110874495B (en) * | 2018-08-31 | 2024-02-27 | 深圳市安信达存储技术有限公司 | Solid state disk based on automatic locking write protection function and tamper-proof method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100811 Termination date: 20141023 |
|
| EXPY | Termination of patent right or utility model |