CN2575753Y - Universal digital touch control panel - Google Patents
Universal digital touch control panel Download PDFInfo
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- CN2575753Y CN2575753Y CN 02236511 CN02236511U CN2575753Y CN 2575753 Y CN2575753 Y CN 2575753Y CN 02236511 CN02236511 CN 02236511 CN 02236511 U CN02236511 U CN 02236511U CN 2575753 Y CN2575753 Y CN 2575753Y
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- power supply
- memory
- volatile memory
- tool function
- supplying power
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Abstract
The utility model relates to a non volatility storing device with the function of power supply, which is provided with a connection port, an electric supply device and a memory system, wherein, the non volatility storing device with the function of power supply is supplied with data and host power supply by a host through connecting an outer bus of the connection port, and the memory system temporarily stores the data received by the connection port, and further writes the temporary data into a non volatility memory. The electric supply device supplies back-up power for the memory system to write the present temporarily stored data into the non volatility memory when the power supply of the host disappears, so that the data is readable.
Description
Technical field
The utility model relates to a kind of non-volatile memory, and particularly relevant for a kind of non-volatile memory of tool function of supplying power.
Background technology
Along with popularizing of electronic product, the preservation of numerical data has become the operation of extremely often carrying out in the daily life.In order to make stored numerical data can have Portability so that can both use at any time in various places, former the most normal use be exactly equipment such as detachable hard disk or discs.But these equipment all have its shortcoming to exist.For instance, though detachable hard disk can have very big capacity, but because the relation of its inner precise construction makes detachable hard disk not allow the generation of bigger vibrations or serious a little collision, in order to avoid cause inner data damage or mechanism's damage.Though and discs does not have the shortcoming of above-mentioned detachable hard disk, then be subject to its fixing capacity on the other hand and need special device, as: the CD-ROM drive that can repeat to write, just can carry out the renewal of internal data.Therefore, though detachable hard disk and discs are used easily, respectively there is its inconvenience to exist.
To carry in order providing convenience and can not to be subject to the portable storage facilities that needs special device to use, just have manufacturer to develop with non-voltile memory, as: flash memory is the non-volatile memory that stores main body.This non-volatile memory can various external bus interfaces, and for example: universal serial bus (USB) interface, RS232 interface or 1394 interfaces etc. are connected on the main frame.Non-volatile memory is not only by carrying out exchanges data between these external buss and main frame, but also obtained the supply of electric power by main frame by these external buss.It is widely popular because its characteristic that is easy to carry and is easy to be connected with various main frames, non-volatile memory are subjected to liking of user soon.But, also join by external bus and main frame owing to it, so when the improper withdrawing of user, its inner data might become the archives that can't read because do not write fully as yet, what is more, also might be because (File Allocation Table is caused FAT to upgrade incomplete result by improper withdrawing because of power breakdown in the time of FAT) at the updating files allocation list.
Therefore, the non-volatile memory of this circumscribed might cause the data complete obiteration of transmitting when suffering from improper withdrawing, even more serious, can cause all data of its inside all can't read owing to the damage of FAT.
The utility model content
The purpose of this utility model is exactly at the non-volatile memory that a kind of tool function of supplying power is provided.It can provide the electric power that prestores by inside automatically when non-volatile memory cuts off the power supply, the electric power that prestores thus, the partial data that this non-volatile memory will be transferred to wherein all writes in the archives, and carries out other necessary programs, so that these archives become the archives that can read.In addition, if be subjected to improper plug when upgrading FAT, the electric power that then prestores also can be supplied this non-volatile memory and finish the operation of upgrading FAT.
For reaching above-mentioned and other purpose, the utility model provides a kind of non-volatile memory of tool function of supplying power, and it has connectivity port, electric power supply apparatus and memory system.Wherein, main frame provides data and host power supply and so far has a non-volatile memory of function of supplying power via the external bus that links the connectivity port.Memory system is temporary by the data that the connectivity port received, and further temporary data is write in the non-voltile memory again.Electric power supply apparatus then when host power supply disappears, provides the back standby electricity to write in the non-voltile memory for the data of answering memory system to keep at present, so that these data are readable.
In addition, the utility model also provides a kind of non-volatile memory of tool function of supplying power, and it has connectivity port, buffer zone, non-voltile memory, battery and Memory Controller Hub.Wherein, the connectivity port electrical ties is to main frame, and main frame then provides data and host power supply in the non-volatile memory of a tool function of supplying power so far via the external bus that links the connectivity port.Buffer zone is temporary by the data that the connectivity port received, and Memory Controller Hub then control data writes to the operation of non-voltile memory by buffer zone, and whether the monitoring host computer power supply exists.When host power supply disappears,, promptly use, so that write operation can completely finish with the reserve electric power supply write operation that battery was provided if there is write operation not to be finished as yet.
Wherein, the connectivity port can comprise and is applicable to and links one of them interface coupling arrangement of universal serial bus (USB) interface, 1394 interfaces, RS232 interface, parallel transmission interface, pcmcia interface, CF interface, SD interface, MMC interface and memory stick (memory stick) interface.
The non-volatile memory of tool function of supplying power provided by the utility model, owing to can detect variation by power supply that main frame transmits, therefore before the operation of storage data is not finished as yet but under the situation of sudden power, the data that the electric power that can utilization itself be had is guaranteed to be sent in this non-volatile memory can continue to write in the non-voltile memory.Therefore, the data that the utility model can be guaranteed to be transferred in the non-volatile memory can be written in the non-voltile memory, and can not have complete end of transmission just to cause the result of data loss because of data.
In addition, the utility model can also upgrade its FAT (FileAllocation Table at non-voltile memory, FAT) but meet with during under the situation of outage, the electric power that is provided by itself is finished the renewal of FAT, and can therefore not make whole storage data come to harm.
Description of drawings
Fig. 1 is the system block diagram according to the utility model one embodiment;
Fig. 2 is the circuit block diagram according to another embodiment of the utility model;
Fig. 3 A is the circuit block diagram of the embodiment of electric power supply apparatus 208a among Fig. 2; Fig. 3 B is the circuit block diagram of another embodiment of electric power supply apparatus 208a among Fig. 2; Fig. 4 A is the circuit block diagram according to another embodiment of the utility model; Fig. 4 B is according to the utility model circuit block diagram of an embodiment again; And Fig. 5 is the product parts exploded view that can implement the utility model one embodiment.Description of reference numerals: 10; 20; 20a; 20b: non-volatile memory 12; 22: main frame 15: external bus 100; 200; 220: connectivity port 102; 222; 222a; 232; 240: data signals line 104; 224; 224a; 226; 226a; 234; 236; 280; 282: power lead 110; 208a: electric power supply apparatus 112; 252; 254: controlling signal line 120: memory system 202: impact damper 204: Memory Controller Hub 206: non-voltile memory 208: battery 270a; 270b: power regulator 300: charging module 302: battery protection module 310: Voltage Feedback module 320: switch 400: loam cake 402: lower cover 406: plug protecting cover 408: printed circuit board (PCB) 410: spiral shell 412: rechargeable battery 414; 416: battery spring lamination 418: battery charging module 420:LED 422:USB plug 424: memory system
Embodiment
Please refer to Fig. 1, it is a kind of system block diagram according to the utility model one embodiment.In this embodiment, the non-volatile memory 10 of tool function of supplying power has comprised connectivity port 100, electric power supply apparatus 110 and memory system 120 (scale is not drawn according to reality).The signal exchange is carried out by external bus 15 and main frame 12 in connectivity port 100, and main frame 12 also provides host power supply to use for non-volatile memory devices 10 runnings except provide data to the non-volatile memory devices 10 via external bus 15.Herein, the external bus that can be suitable for comprises universal serial bus (USB) interface, 1394 interfaces, serial transmission interface (RS232), parallel transmission interface (Parallel), personal computer memory card interface (PCMCIA), flash card (CF), secure digital memory card interface (SD), multimedia storage card interface (MMC) and memory stick (Memory Stick) interface at least, and relative, connectivity port 100 just must have at least and is applicable to and links one of them interface coupling arrangement of these interfaces.
In non-volatile memory 10 inside, by connectivity port 100 by external bus 15 from the received data of main frame 12, can send memory system 120 to carry out the operation that data write by data signals line 102.Opposite, when the operation of reading, data can send main frame 12 by connectivity port 100 to by external bus 15 from memory system 120 through data signals line 102.And because operating in of reading of data do not have the possibility that causes the damage of memory system 120 internal datas in the scope that the utility model considers, therefore the part that data write only is discussed in follow-up discussion, no longer the operation that data read is described further.
Generally speaking, the write operation carried out when storage data of memory system 120 can be divided into three parts.First part be by the pen with in the data write memory, second part is after all data of certain archives have all been write, just the information with these archives writes in the archives summary (File Description Block), at last, the 3rd part is exactly that updating files allocation list (FileAllocation Table) is so that the user is able to these archives of access.Owing to comprised the information relevant such as main extension name, attribute, reservation, time, date, indicator, size in the archives summary with archives, if lack the storage of any all will cause archives can't be complete, and the information in these archives summaries must just can be added to come in after all data of archives have all been write, in case just do not meet with the accident of power breakdown so the data of certain archives also do not write to finish fully, then all data that write in these archives all can't be used by user's access before this.
In order to solve such problem, the utility model provides an extra back standby electricity with electric power supply apparatus 110 especially, by this back electric power of being provided of standby electricity, memory system 120 just can write archives with present all data that entered into memory system 120, and the content of revising the archives summary is stored again.Thus, just meet with outage, also can the part of having transmitted be remained as far as possible by non-volatile memory 10 provided by the utility model even if archives are transferred to half.
And if when third part updating files allocation list sudden power, because also not upgrade fully, the data in the FAT do not finish, so probably can cause the content entanglement of FAT, and then cause in the whole storage device all former archives that pre-exist all can't take.In order to address this problem, the back standby electricity that the utility model utilizes electric power supply apparatus 110 to be provided equally continues the required electric power of supply updating files allocation list when host power supply suddenly disappears.
Under a preferable situation, the power supply that memory system 120 can controlling signal line 112 comes control power supply device 110 whether.Generally speaking, in the time of the host power supply normal operation, electric power supply apparatus 110 can not powered, in a single day suddenly disappear and detect host power supply, and memory system 120 also has data to store as yet to finish, or the renewal of FAT do not finish as yet, and electric power supply apparatus 110 will provide electric power till the above-mentioned end of job.
To be familiar with this operator the utility model had clearer understanding in order to make, will after do more at large with reference to Fig. 2 and to explain orally.
Please refer to Fig. 2, it is the detailed circuit block scheme according to another embodiment of the present utility model.Connectivity port 220 on main frame 22 receives data (D) by the data signals line 222 (being generally internal bus) of main frame 22 inside, and by power lead 224 (+) and 226 (-) reception main frame voltage, and these data and main frame voltage just are sent to (comprising data signals line 222a, power lead 224a and 226a) connectivity port 200 of the non-volatile memory 20 of tool function of supplying power by external bus.Supply buffer device 202, Memory Controller Hub 204 are used with non-voltile memory 206 operations respectively by power lead 234 and 236 by connectivity port 200 received host power supplies.Connectivity port 200 received data then are temporarily stored in impact damper 202 inside earlier by data signals line 232, and then by Memory Controller Hub 204 controls the data in the impact damper 202 are written to non-voltile memory 206.
In the utility model, the mechanism whether the monitoring host computer power supply exists can be to be carried out by Memory Controller Hub 204 built-in firmwares, or carries out with Voltage Feedback module 310 as shown in Figure 3, what is more, can also itself produce reaction by battery 208.In Fig. 2, explain orally with battery 208 aitiogenic function modes own earlier:
When the main frame sudden power, or external bus is when being caused host power supply can't supply with non-volatile memory 20 by improper plug, because 208 current potentials that can provide of battery can be provided the voltage on the power lead 234 and 236 gradually, so battery 208 used host power supply will replace original the operation with the back standby electricity that it was provided the time.Under this situation, the back standby electricity that Memory Controller Hub 204 just can utilize battery 208 to be provided continues the data of being kept in the impact damper to be written in the non-voltile memory 206, and has write the back in data and revised the archives summary, and the updating files allocation list.
And except battery 208 generations the reaction own, together detect change in voltage if can cooperate Memory Controller Hub 204 built-in firmwares, then working as Memory Controller Hub 204 all is written to the data in the impact damper 202 in the non-voltile memory 206, and after revising archives summary and updating files allocation list, can also be according to before detecting the information that host power supply disappears, stop to accept electric power with non-voltile memory 206 with controller buffer 202, Memory Controller Hub 204 by controlling signal line 252 and 254, further reach the function of power saving from power lead 234 and 236.In addition, be familiar with this operator when knowing, desire is saved the supply path that electric power also can directly cut off battery 208, and this also only needs to install additional on the output circuit of battery 208 and can be reached by the switch 320 that Memory Controller Hub 204 is controlled shown in Fig. 3 B.
Next please refer to Fig. 3 A, its embodiment for utilizing a Voltage Feedback module 310 to come the detecting host power supply whether to exist in addition.Though must be noted that be in this embodiment by charging module 300 in the ordinary course of things host power supply is input to battery 208, this charging module is not a necessary assembly of the present utility model, this point can be got clear proof by embodiment shown in Figure 2.
In Fig. 3 A, charging module 300 inside have also comprised a battery protection module 302 that not influenced by surging or too high voltages in order to protection battery 208.In the host power supply normal power supply, host power supply can be fed to battery 208 via charging module 300.And when host power supply died down gradually even disappears, voltage feedback circuit 310 will begin the back standby electricity that 208 on battery can provide is outputed on power lead 234 and 236 because detecting potential change on power lead 234 and 236.Operating result is then just stated during with Fig. 3 B as key drawing 2, is not repeated them here.
Because the voltage that aforesaid external bus transmitted is generally all about 5V, therefore in above-mentioned embodiment of not having voltage regulator (a voltage regulator), its memory system 120 applicatory, impact damper 202, Memory Controller Hub 204 also should operate under the environment of 5V with non-voltile memory 206.So be familiar with this operator when knowing, the utility model can make by adding voltage regulator and need be applicable in the utility model at the voltage-operated memory subassembly of difference.
For example, please refer to Fig. 4 A and Fig. 4 B, this two figure is presented at the circuit block diagram that adds the embodiment of voltage regulator in the utility model respectively.Wherein, represent similar assembly with the similar label of Fig. 2.And easy on illustrating merged into the impact damper among Fig. 2 202, Memory Controller Hub 204 as the memory system among Fig. 1 120 with non-voltile memory 206 in these two embodiment.In Fig. 4 A, the host power supply that connectivity port 200 is received can be provided to power regulator 270a earlier, voltage regulator 270a is converted to suitable intraware with host power supply, as: memory system 120 or electric power supply apparatus 208a, after operating used voltage, the host power supply after will changing is again exported to these intrawares.And in Fig. 4 B, the host power supply that connectivity port 200 is received then is provided to power regulator 270b and electric power supply apparatus 208a respectively, host power supply after voltage regulator 270b conversion is supplied to memory system 120, and the electric power that electric power supply apparatus 208a is provided is then supplied with memory system 120 when being necessary by power lead 280 and 282 in addition and used.
Be familiar with this operator when changing circuit design voluntarily in above-mentioned notion, for example, in Fig. 4 B, the conversion that the electric power that electric power supply apparatus 208a is provided can pass through power regulator 270b equally just offers memory system 120.Therefore, the above embodiments only are the usefulness of giving an example, and the connotation of unrestricted the utility model scope.And in the embodiment of the present utility model with power regulator existence, the current potential that its memory system and electric power supply apparatus just can not be constrained to the host power supply that must be imported into external bus is identical, and can consider to change according to separately cost or circuit.
In the utility model, preferably use rechargeable battery so that the energy has preferable utilization ratio, but certainly, can apply in the utility model too as the not rechargeable battery as the button cell.In addition, as the temporary transient electronic package or the combinational circuit that when voltage reduces, stored energy are discharged again of storage power such as the combinational circuit of electric capacity, electric capacity and inductance and the combinational circuit of electric capacity, inductance and resistance, also can be used in the electric power supply apparatus of the present utility model.
According to the above, existing defective with advantage of the present utility model and known technology is compared as follows table 1, can know understanding improvement part of the present utility model so that be familiar with this operator.
At last, please refer to Fig. 5, it has shown the product parts exploded view that can implement the utility model one embodiment.Figure is familiar with this operator when implementing the utility model easily thus.Table 1
| Situation | Known technology | The utility model |
| Sudden power when writing archives, data do not write non-voltile memory as yet, but existing 5 address books are temporary in the impact damper. | Archives do not exist fully. | 5 address books that have been temporary in the buffer can be written in the non-voltile memory; And change archives summary and FAT, so the user can read archives that include 5 address books. |
| Sudden power when writing archives, there are 20 address books to write non-voltile memory, other has 10 to exist in the buffer, 70 not transmission as yet. | 1. archives do not exist.2. archives exist but the archives summary makes a mistake, and these archives can't read.3. FAT produces mistake, and related out all can't read. | 10 address books that have been temporary in the buffer can be written in the non-voltile memory; And change archives summary and FAT, so the user can read archives that include 30 address books. |
| Sudden power when writing archives, there are 90 address books to write non-voltile memory, other has 10 to exist in the buffer, and main frame does not have remaining data. | 1. archives do not exist.2. archives exist but the archives summary makes a mistake, and these archives can't read.3. FAT produces mistake, and related out all can't read. | 10 address books that have been temporary in the impact damper can be written in the non-voltile memory, and change archives summary and FAT, so the user can read the archives that include complete address book. |
In sum, the electric power that is characterised in that utilization itself the is had of the present utility model data guaranteeing to be sent in this non-volatile memory can continue to write in the non-voltile memory.Therefore, the data that the utility model can be guaranteed to be transferred in the non-volatile memory can be written in the non-voltile memory, and can not have complete end of transmission just to cause the result of data loss because of data.
Though the utility model with the embodiment explanation as above; right its is not in order to limiting the utility model, anyly is familiar with this operator, in not breaking away from spirit and scope of the present utility model; when being used for a variety of modifications and variations, therefore protection domain of the present utility model is when being as the criterion with claims.
Claims (22)
1. the non-volatile memory of a tool function of supplying power is characterized by: comprising:
One connectivity port, electrical ties to a main frame, this main frame provides data and a host power supply to the non-volatile memory of this tool function of supplying power via an external bus that links this connectivity port;
One battery provides a back standby electricity;
One buffer zone, these data that temporary this connectivity port is received;
One non-voltile memory; And
One Memory Controller Hub is controlled these data and is write to the operation of this non-voltile memory by this buffer zone, and monitors this host power supply.
2. the non-volatile memory of tool function of supplying power as claimed in claim 1 is characterized by: this connectivity port comprises and is applicable to and links one of them interface coupling arrangement of universal sequential bus interface, 1394 interfaces, serial transmission interface, parallel transmission interface, personal computer memory card interface, flash card, secure digital memory card interface, multimedia storage card interface and memory stick interface.
3. the non-volatile memory of tool function of supplying power as claimed in claim 1 is characterized by: also comprise a Voltage Feedback module, whether this Voltage Feedback module is detected this host power supply and is existed, so that this back standby electricity to be provided when this host power supply disappears.
4. the non-volatile memory of tool function of supplying power as claimed in claim 1 is characterized by: also comprise a charging module, this charging module receives this host power supply, and with this host power supply this battery is carried out charging operations.
5. the non-volatile memory of tool function of supplying power as claimed in claim 4 is characterized by: this charging module also comprises a battery protection module, and this battery protection module is not subjected to the injury of too high voltages in order to the protection battery.
6. the non-volatile memory of tool function of supplying power as claimed in claim 1, it is characterized by: also comprise a power regulator, this host power supply that this power regulator will be supplied to this buffer zone, this non-voltile memory and this Memory Controller Hub is adjusted to suitable voltage.
7. as the non-volatile memory of each described tool function of supplying power among the claim 1-6, it is characterized by: this battery comprises can not rechargeable battery.
8. as the non-volatile memory of each described tool function of supplying power among the claim 1-6, it is characterized by: this battery comprises rechargeable battery.
9. the non-volatile memory of a tool function of supplying power is characterized by: comprising:
One connectivity port, electrical ties to a main frame, this main frame provides data and a host power supply to the non-volatile memory of this tool function of supplying power via an external bus that links this connectivity port;
One memory system, temporary by these data that this connectivity port received, these data that further will keep in again write in the non-voltile memory; And
One electric power supply apparatus, when this host power supply disappeared, these data that provide this memory system of reserve electric power supply to keep at present write in this non-voltile memory, so that these data are readable.
10. the non-volatile memory of tool function of supplying power as claimed in claim 9 is characterized by: this connectivity port comprises and is applicable to and links one of them interface coupling arrangement of universal sequential bus interface, 1394 interfaces, serial transmission interface, parallel transmission interface, personal computer memory card interface, flash card, secure digital memory card interface, multimedia storage card interface and memory stick interface.
11. the non-volatile memory of tool function of supplying power as claimed in claim 9 is characterized by: this electric power supply apparatus also comprises a charging module, and this charging module receives this host power supply, and with this host power supply this back standby electricity is carried out charging operations.
12. the non-volatile memory of tool function of supplying power as claimed in claim 9 is characterized by: also comprise a power regulator, this host power supply that this power regulator will be supplied to this memory system is adjusted to suitable voltage.
13. the non-volatile memory as each described tool function of supplying power among the claim 9-12 is characterized by: this electric power supply apparatus comprises not rechargeable battery.
14. the non-volatile memory as each described tool function of supplying power among the claim 9-12 is characterized by: this electric power supply apparatus comprises rechargeable battery.
15. the non-volatile memory as each described tool function of supplying power among the claim 9-12 is characterized by: this electric power supply apparatus comprises arbitrary in the combination of the combination of electric capacity, electric capacity and inductance and electric capacity, inductance and resistance.
16. the non-volatile memory of a tool function of supplying power, base is characterized as: comprising:
One edge joint port, electrical ties to a main frame, this main frame provides data and a host power supply to the non-volatile memory of this tool function of supplying power via an external bus that links this connectivity port;
One memory system, temporary by these data that this connectivity port received, these data that further will keep in again write in the non-voltile memory; And
One electric power supply apparatus when this host power supply disappears, provides a back standby electricity to this memory system.
17. the non-volatile memory of tool function of supplying power as claimed in claim 16 is characterized by: this connectivity port comprises and is applicable to and links one of them interface coupling arrangement of universal sequential bus interface, 1394 interfaces, serial transmission interface, parallel transmission interface, personal computer memory card interface, flash card, secure digital memory card interface, multimedia storage card interface and memory stick interface.
18. the non-volatile memory of tool function of supplying power as claimed in claim 16 is characterized by: this electric power supply apparatus also comprises a charging module, and this charging module receives this host power supply, and with this host power supply this back standby electricity is carried out charging operations.
19. the non-volatile memory of tool function of supplying power as claimed in claim 16 is characterized by: also comprise a power regulator, this host power supply that this power regulator will be supplied to this memory system is adjusted to suitable voltage.
20. the non-volatile memory as each described tool function of supplying power among the claim 16-19 is characterized by: this electric power supply apparatus comprises not rechargeable battery.
21. the non-volatile memory as each described tool function of supplying power among the claim 16-19 is characterized by: this electric power supply apparatus comprises rechargeable battery.
22. the non-volatile memory as each described tool function of supplying power among the claim 16-19 is characterized by: this electric power supply apparatus comprises arbitrary in the combination of the combination of electric capacity, electric capacity and inductance and electric capacity, inductance and resistance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02236511 CN2575753Y (en) | 2002-05-24 | 2002-05-24 | Universal digital touch control panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02236511 CN2575753Y (en) | 2002-05-24 | 2002-05-24 | Universal digital touch control panel |
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| Publication Number | Publication Date |
|---|---|
| CN2575753Y true CN2575753Y (en) | 2003-09-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02236511 Expired - Fee Related CN2575753Y (en) | 2002-05-24 | 2002-05-24 | Universal digital touch control panel |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102568586A (en) * | 2010-12-17 | 2012-07-11 | 西安奇维测控科技有限公司 | Electric disk and method utilizing backup power supply to execute data destruction |
| CN102866926A (en) * | 2011-07-06 | 2013-01-09 | 华晶科技股份有限公司 | Method for storing data and electronic device using same |
-
2002
- 2002-05-24 CN CN 02236511 patent/CN2575753Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102568586A (en) * | 2010-12-17 | 2012-07-11 | 西安奇维测控科技有限公司 | Electric disk and method utilizing backup power supply to execute data destruction |
| CN102866926A (en) * | 2011-07-06 | 2013-01-09 | 华晶科技股份有限公司 | Method for storing data and electronic device using same |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20030924 |