CN101324799A - Portable memory device and synchronization method thereof - Google Patents
Portable memory device and synchronization method thereof Download PDFInfo
- Publication number
- CN101324799A CN101324799A CNA2007101264577A CN200710126457A CN101324799A CN 101324799 A CN101324799 A CN 101324799A CN A2007101264577 A CNA2007101264577 A CN A2007101264577A CN 200710126457 A CN200710126457 A CN 200710126457A CN 101324799 A CN101324799 A CN 101324799A
- Authority
- CN
- China
- Prior art keywords
- time
- host apparatus
- memory device
- clock
- data memory
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Electric Clocks (AREA)
Abstract
The invention discloses a portable memory device used for a host computer, which comprises an interface coupled to the host computer, a real time clock (RTC) used for synchronizing the portable data memory device with clock time, and a memory module used for storing data and test programs. When the memory device is joined to the host computer, the test programs update the time of the real time clock with the system time of the host computer.
Description
Technical field
Relevant a kind of storage device of the present invention and method for synchronous thereof refer to be used for portable memory device and the method for synchronous thereof that having of host apparatus is clock especially.
Background technology
Be clock (Real Time Clock RTC) is the time keeping device, is widely used in the electronic application product with storer, as camera, mobile phone, personal digital assistant (Personal Digital Assistant, PDA) etc.But after these electronic application products use a period of time, its battery might because of power consumption totally, temperature is too high or for a long time not suitably factor such as Adjustment System time cause the uncomfortable lattice of power level, cause its clock time inaccurate.In addition, memory bank sequencing again also can make to be that time of clock is inaccurate, and it is neither correct to cause in the storer file to store date and time, need change time, the date of file again or set the clock time of electronic product.These memory storages clock time accurately reach synchronized purpose, comprise the precedence that appointment is repeatedly concluded the business, in case Fail Transaction takes place, still can cancel this transaction, or write down the time starting point of a certain particular transaction.The time that is clock is incorrect, certainly will cause incorrect measurement result.For instance, having is that the electrocardiograph of clock regularly writes down the current status relevant with heart contraction with observation constantly.At this moment, if electrocardiograph is that clock can't correctly give the correct time because of unknown cause, consequence is with hardly imaginable.So have some to make to be the gain improvement of the device and method that clock correctly gives the correct time to be disclosed by the people.
As the 6th, 167, No. 482 patents of the U.S. described (Fig. 1), what flash memory device was kept in this patent announcement is the method flow diagram of clock time.It is the clock service routine that this method comprises the software that is installed in execution in the flash memory devices, and as step 100, wherein counter (timer) software routine is measured the required time of total reprogramming.Terminating in the software of carrying out in the flash memory devices is the clock service routine.Simultaneously, the read operation of any flash memory devices can be repaid flash memory status register content, rather than the flash memory stores content, as step 102.The present unit time is stored in the storage lattice of erasable access, shown in step 104, and carries out the program of reprogramming, as step 106.The initial previous application program of carrying out, as step 108, then the time set with the unit is the previous value that stores, as step 110.Application program can comprise firmware code, so as to reloading firmware, to upgrade version or load the firmware that can carry out under other environment.Restarting the software of carrying out in the flash memory devices of reprogramming then is the clock service routine, as step 112.Thereafter, terminate in the software of carrying out in the flash memory devices of reprogramming is the clock service routine in good time, as step 114.The total reprogramming time that measures is added the value of instant clock up till now, as step 116.Application program continues to carry out, as step 118.By above method, so one what hold time automatically is that clock is shaped.
As mentioned above, the U.S. the 6th, 167, No. 482 patents only utilize counter and software to calculate afterwards and reckoning is when clock begins and can't correctly give the correct time to keep correct time at each reprogramming.Yet, change because tradition is clock deficient in stability and non-heatproof degree, so its accuracy can reduce gradually.Therefore, needing a kind of memory storage and its method at present badly, to overcome current be the problem that clock can't correctly give the correct time.
Summary of the invention
Because prior art is limited by above-mentioned problem, purpose of the present invention is a kind of portable memory device and method thereof with synchronization function that propose, to reach the purpose of automatic update time and effective management document.
For reaching above-mentioned purpose, of the present inventionly implement the sample attitude for a kind of portable memory device that is used for host apparatus is provided than broad sense, comprise the interface that is coupled to host apparatus, that come synchronization Portable data memory device with clock time is clock (Real Time Clock, and be used for storage data and trace routine memory module RTC).When storage device was connected to host apparatus, it was the clock time of clock that trace routine is upgraded with the system time of host apparatus.
According to conception of the present invention, storage device further comprises the controller of control data storage device running.
According to conception of the present invention, storage device further comprises the battery module that electric power is provided.
According to conception of the present invention, trace routine is after data memory device is connected to host apparatus, and upgrading with the system time of host apparatus at once is the clock time of clock.
According to conception of the present invention, trace routine surpasses the schedule time during tolerance detecting time difference between storage device and host apparatus, and upgrading with the system time of host apparatus is the clock time of clock.
According to conception of the present invention, schedule time margin tolerance is 1 minute to 24 hours.
According to conception of the present invention, it is the clock time of clock that trace routine obtains by host apparatus that the network clocking time upgrades.
According to conception of the present invention, promptly clock comprises at least one buffer, to store the update time from host apparatus by controller.
According to conception of the present invention, after data memory device was connected to host apparatus, trace routine stored automatically and is installed on host apparatus.
According to conception of the present invention, interface comprises universal serial bus (Universal Serial Bus, USB) interface, IEEE (Institute of Electrical and Electronics Engineers 1394) 1394 interfaces, eSATA (external Serial Advanced Technology Attachment) interface, PCI Express (PeripheralComponent Interconnect Express) interface and ultra broadband (Ultra Wideband, UWB) interface.
According to conception of the present invention, memory module comprises flash memory (Flash Memory), hard disk (Hard Disk Drive, HDD), CD-rewritable (Compact Disc Rewritable, CD-RW), can make carbon copies digital video disk (Digital Video Disc Rewriteable, DVD-RW), secure digital (Secure Digital, SD) storage card, Multi Media Card (Multi Media Card, MMC), miniature SD card, CF card (Compact Flash), MS (Memory Stick) card, MS Due card, MS Pro card, MS Micro (M2) card, SM (Smart Media) card, and MMC Micro card.
According to conception of the present invention, host apparatus comprise computing machine, personal digital assistant (Personal DigitalAssistant, PDA) and the Portable media player (Portable Media Player, PMP).
Of the present invention another implemented the sample attitude for a kind of automatic synchronization storage device time method is provided than broad sense.In having the Portable data memory device of clock time, be provided with trace routine and host apparatus communication with system time, its time method for synchronous comprises the following steps: a) trace routine to be loaded host apparatus; B) time difference between the system time of the clock time of detection data memory device and host apparatus; C) judge whether the time difference surpasses schedule time tolerance; And d) surpasses schedule time tolerance when the time difference, upgrade the clock time of data memory device with the system time of host apparatus.
According to conception of the present invention, this method for synchronous comprises further whether the detection data memory device is connected to the step of host apparatus.
According to conception of the present invention, this method for synchronous comprises that further the clock time that will upgrade is stored in the step of the memory module of data memory device.
According to conception of the present invention, schedule time margin tolerance is 1 minute to 24 hours.
According to conception of the present invention, about 5 minutes of this method for synchronous schedule time tolerance.
According to conception of the present invention, this method for synchronous further comprises when host apparatus is connected to network, obtains the network clocking time and upgrades the step of the system time of host apparatus.
Of the present invention another implemented the sample attitude for a kind of automatic synchronization storage device of network time method of utilizing is provided than broad sense.In having the USB Portable data memory device of clock time, be provided with the trace routine that is stored in nand flash memory and come and have the host apparatus communication of system time, its time method for synchronous comprises when data memory device is connected to host apparatus, carry out trace routine at host apparatus, and upgrade the clock time of data memory device with the system time of host apparatus.This method further comprises when host apparatus is connected to network, obtains the network clocking time and upgrades the step of the system time of host apparatus.
The present invention discloses a kind of portable memory device and synchronized method thereof.When storage device is connected to host apparatus (as computing machine), whether the trace routine that automatically performs can detect has the time difference and carries out synchronized action between storage device and host apparatus.When host apparatus was connected to network, the system time of host apparatus and the clock time of storage device then can be updated to the most real-time network time in the lump.Be different from general storage device, the present invention can effectively come management data according to time sequencing, greatly overcomes the shortcoming of prior art and solves the above problems.
Description of drawings
Fig. 1 keeps the method flow diagram that flash memory devices is a clock time for prior art;
Fig. 2 is the data memory device calcspar of preferred embodiment of the present invention;
Fig. 3 is the method for synchronous process flow diagram of another preferred embodiment of the present invention;
Fig. 4 (a) is to the synoptic diagram of 4 (d) for scsi command package of the present invention and scsi data;
Fig. 5 for of the present invention be the buffer table of clock;
Fig. 6 for of the present invention be the synoptic diagram of clock;
The data transmission of Fig. 7 skeleton diagram sample invention; And
Fig. 8 (a) is to the synoptic diagram of 8 (b) for data transfer activities on the bus of the present invention.
Embodiment
Some embodiment that embody feature of the present invention and advantage will be described in detail in the explanation of back segment.The present invention can have various variations on different aspects, neither departing from the scope of the present invention, and explanation wherein and the accompanying drawing usefulness that ought explain in itself, but not in order to restriction the present invention.
Please refer to Fig. 2, it discloses the cut-away view of the Portable data memory device of preferred embodiment of the present invention.As Fig. 2, data memory device 10 is connected to host apparatus 20 (as computing machine), and (Universal Serial Bus, high-speed transfer interface 30 USB) is reached data and command transfer therebetween by universal serial bus.Can utilize personal digital assistant (Personal Digital Assistant in other embodiments, PDA), the Portable media player (Portable Media Player, PMP) and other host apparatus with portable apparatus of information display function implement the present invention.Except high-speed transfer interface 30, data memory device 10 comprises controller 40 that control read-write is a clock (RTC) 50, has file configuration table (File AllocationTable, memory module 60 FAT) and the battery module (not icon) that power source is provided of storage data input field (entry).Each data input field points to the access time of its respective file.Controller 40 can be considered intermediary's device of communication between control data storage device 10 and the host apparatus 20.
Be that clock 50 comprises one or more buffers (not icon), being used for synchronization storage device 10 and record with storage is the time data of clock 50 clock times.Similarly, host apparatus 20 has and is used for the system time of synchronization storage device 10.Memory module 60 storage datas and the trace routine that automatically performs, this program can automatically perform and detect the time difference of the system time of the clock time of storage device 10 and host apparatus 20 after being loaded on host apparatus 20.In general, storage device 10 is allowed default 1 minute to 24 hours time tolerance, and manufacturer can adjust its time margin tolerance.If the detected time difference (present embodiment was an example with 5 minutes time differences)) surpass preset range, automatically performing trace routine, promptly to come synchronization with the system time of host apparatus 20 be the clock time of clock 50.In other words, if the detected time difference is lower than 5 minutes, promptly 50 on clock is kept present clock time; Otherwise promptly 50 system times with host apparatus 20 of clock come its clock time of synchronization.In addition, when data memory device 10 with after host apparatus 20 is connected, it is the clock time of clock 50 that trace routine is come synchronization with the system time of host apparatus 20 immediately.On the other hand, when host apparatus 20 is connected to network, trace routine can read the correct clock time of network, and (Network Time Protocol, mode NTP) is come the system time of synchronization host apparatus 20 and is the clock time of clock 50 by NTP (Network Time Protocol).
See also Fig. 3, it discloses the method for the time synchronizedization of preferred embodiment of the present invention.The trace routine that automatically performs of step S30 icon storage device 10 is loaded on host apparatus 20.If the trace routine that automatically performs successfully loads, then can on host apparatus 20, detect storage device 10.Otherwise step S31 can get back to step S30 and reload this program.Shown in Fig. 3 step S32 and S33, between the system time of the function of this program for the clock time that detects storage device 10 and host apparatus 20 whether there is the time difference, and judges further whether the detected time difference surpasses and be scheduled to 5 fens clock time tolerances.This schedule time margin tolerance is little of 1 minute, greatly to 24 hours.If the detected time difference is lower than 5 minutes, step S33 then carries out step S34, keeps the present clock time of storage device 10.Otherwise, if the detected time difference surpass default permissible time tolerance, the tolerance more than 5 minutes for example, next step then carries out step S35 step S33.For instance, the system time of the backward host apparatus 20 of the clock time of storage device 10 is 17 minutes.Next, host apparatus 20 sends command signal to controller 40 by high-speed transfer interface 30, require its system time is sent to storage device 10, and be the clock time of clock 50 to set renewal.
See also Fig. 3 to Fig. 5.Small computer system interface (Small ComputerSystem Interface by host apparatus 20 transmission, SCSI) command block package (Command Block Wrapper, CBW), shown in Fig. 4 (a), the clock time energy of storage device 10 and the system time of host apparatus 20 are synchronous, as the step S36 of Fig. 3.Send the time data from host apparatus 20, promptly (Data-out, DO), can correspond to by controller 40 is that the buffer (as Fig. 5) of clock 50 is set clock time to the scsi data shown in Fig. 4 (b) output package.Last step S37, the clock time data storing that then will be clock 50 renewals is in memory module 60.For trying to achieve correct time data, also can utilize network to reach time synchronizedization.After host apparatus 20 is connected to network, the standard real-time time that can on network, obtain by NTP, the system time of the clock time of synchronization storage device 10 and host apparatus 20.After the synchronization, transmit CBW (as Fig. 4 (c)) by controller 40, host apparatus 20 is clock 50 time for reading data certainly, i.e. and the input of the scsi data shown in Fig. 4 (d) package (Data-in, DI).It is the clock buffer that common DI and DO can correspond to.The transmission of time data below will be described in detail in detail.
Called optical imaging be the clock cut-away view as shown in Figure 6.Be that clock 50 is coupled to controller 40 so that data transmission by sequential bus interface (being designated hereinafter simply as " bus ").Fig. 7 summary icon data transmission sequence.In the present embodiment, controller 40 is the master control set of clock 50 as control, and promptly 50 on clock is defined as slave unit.Being connected of master control set and slave unit is based upon bus (Bus), and (Serial Clock, SCL) (Serial Data, SDA) bidirectional lines transmits data, as shown in Figure 6 with opening the sequence data of letting out the utmost point (Open Drain) by the sequence frequency line.Controller 40 produces sequence frequency line (SCL), beginning (START) and stops the access of the state and the control bus of (STOP).As shown in Figure 7, when data line by hypermutation to low, and frequency line maintains high point, is defined as the state of " beginning ".Otherwise,, then be defined as the state of " stopping " when data line fades to height and frequency line still maintains high point by low.In addition, after " beginning " state, frequency signal is during height point, and data line continues steadily simultaneously, and then " data are (DATA VALID) effectively in this data line representative.Frequency signal is during low spot, and the data of online data must conversion.Data transmission each time must originate in " beginning " state, ends at " stopping " state.
Fig. 8 is described in detail in the time data transmission activity on the bus, comprises the operation of reading and writing.According to conception of the present invention, mainly contain two kinds of data transfer modes, promptly read and write, be illustrated in Fig. 8 (a) and Fig. 8 (b) respectively.In general, " beginning " and " stopping " being considered as the starting and ending of sequence transmission.The write operation that is clock 50 comes receiving sequence data and frequency by sequence frequency line (SCL) and sequence data line (SDA), as Fig. 8 (a).First byte that controller 40 transmits is subordinate address (Slave address), and continues to send a series of data byte.After receiving each data byte, promptly clock 50 is promptly passed an affirmation position " ACK " back.The position of transmitting behind the subordinate address is direction indicating bit " R/W ", writes with " 0 " representative.After receiving and deciphering the subordinate address byte, promptly clock 50 is confirmed position " ACK " in the output of sequence data line.Simultaneously, controller 40 can stop data by generation " stopping " state and write transmission.
It is the state that the difference that reads and write of clock 50 mainly is direction indicating bit R/W.That is to say that compared to write operation, the data transfer direction of read operation is reverse.As mentioned above, direction indicating bit R/W writes with " 0 " representative, yet reads with " 1 " representative.In addition, promptly clock 50 must receive " unconfirmed " signal and stop read operation, and meaning is that last data byte is followed the signal of " NO ACK " unconfirmed thereafter, as Fig. 8 (b).
Generally speaking, the present invention discloses and is provided with Portable data memory device and the synchronized method of its time that automatically performs pick-up unit, to reach the file that utilizes time-series effectively to manage storage device.In the embodiment of the multiple sample attitude of the present invention, no matter data memory device is to be connected to main frame or network, all can upgrade its clock time automatically, however traditional storage device manual setting-up time mostly.The present invention not only solves existing potential problem, and makes the data that are stored in the storer can be automatically and the storage device synchronizing clock timeization after upgrading, and is bringing great convenience property of user.
Claims (21)
1. Portable data memory device that is used for host apparatus comprises:
Be coupled to the interface of host apparatus, with reach and host apparatus between data transmission;
What have that clock time is used for synchronization Portable data memory device is clock; And
Memory module is used for storage data and trace routine, and when storage device was connected to host apparatus, it was the clock time of clock that trace routine is upgraded with the system time of host apparatus.
2. data memory device according to claim 1 is characterized in that the controller that comprises that further the control data storage device operates.
3. data memory device according to claim 1 is characterized in that further comprising the battery module that electric power is provided.
4. data memory device according to claim 1 is characterized in that trace routine after data memory device is connected to host apparatus, and upgrading with the system time of host apparatus at once is the clock time of clock.
5. data memory device according to claim 1 is characterized in that trace routine surpasses the schedule time during tolerance detecting time difference between storage device and host apparatus, and upgrading with the system time of host apparatus is the clock time of clock.
6. data memory device according to claim 5 is characterized in that schedule time margin tolerance is 1 minute to 24 hours.
7. data memory device according to claim 1 is characterized in that it is the clock time of clock that trace routine obtains by host apparatus that the network clocking time upgrades.
8. data memory device according to claim 2 is characterized in that being that clock comprises at least one buffer, to store the update time from host apparatus by controller.
9. data memory device according to claim 1 is characterized in that after data memory device is connected to host apparatus, and trace routine stores automatically and is installed on host apparatus.
10. data memory device according to claim 1 is characterized in that interface comprises universal serial bus (USB) interface, IEEE 1394 interfaces, eSATA interface, PCI Express interface and ultra broadband interface.
11. data memory device according to claim 1 is characterized in that memory module comprises flash memory, hard disk, CD-rewritable, can make carbon copies digital video disk, secure digital storage card, Multi Media Card, miniature SD card, CF card, MS card, MS Due card, MS Pro card, MS Micro (M2) card, SM card and MMC Micro card.
12. data memory device according to claim 1 is characterized in that host apparatus comprises computing machine, personal digital assistant and Portable media player.
13. a method for synchronizing time is used in Portable data memory device with clock time and trace routine and the host apparatus communication with system time, comprises the following steps:
Trace routine is loaded host apparatus;
The time difference between the clock time of detection data memory device and the system time of host apparatus;
Judge whether the time difference surpasses schedule time tolerance; And
Surpass the schedule time during tolerance when the time difference, upgrade the clock time of data memory device with the system time of host apparatus.
14. method according to claim 13 is characterized in that further comprising whether the detection data memory device is present in the step on the host apparatus.
15. method according to claim 13 is characterized in that further comprising that the clock time that will upgrade is stored in the step of the memory module of data memory device.
16. method according to claim 13 is characterized in that schedule time margin tolerance is 1 minute to 24 hours.
17. method according to claim 16 is characterized in that schedule time tolerance about 5 minutes.
18. method according to claim 13 is characterized in that further comprising when host apparatus is connected to network, obtains the network clocking time and upgrades the step of the system time of host apparatus.
19. a method for synchronizing time is used in the USB Portable data memory device with clock time, is provided with the host apparatus communication that system time is come and had to the trace routine that is stored in nand flash memory, comprises the following steps:
When data memory device is connected to host apparatus, carry out trace routine at host apparatus; And
Upgrade the clock time of data memory device with the system time of host apparatus.
20. method according to claim 19 is characterized in that when data memory device is connected to host apparatus trace routine is carried out at host apparatus automatically.
21. method according to claim 19 is characterized in that further comprising when host apparatus is connected to network, obtains the network clocking time and upgrades the step of the system time of host apparatus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101264577A CN101324799B (en) | 2007-06-11 | 2007-06-11 | Portable memory device and synchronization method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101264577A CN101324799B (en) | 2007-06-11 | 2007-06-11 | Portable memory device and synchronization method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101324799A true CN101324799A (en) | 2008-12-17 |
| CN101324799B CN101324799B (en) | 2011-08-17 |
Family
ID=40188364
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007101264577A Active CN101324799B (en) | 2007-06-11 | 2007-06-11 | Portable memory device and synchronization method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101324799B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105229593A (en) * | 2013-05-22 | 2016-01-06 | 吉姆索移动通信有限公司 | The remote update of portable storage device |
| CN106292257A (en) * | 2016-08-17 | 2017-01-04 | 合肥申目电子科技有限公司 | A kind of can be with the USB insert card type time display of system time synchronization |
| CN106326059A (en) * | 2016-09-18 | 2017-01-11 | 合肥移顺信息技术有限公司 | Embedded equipment automatic testing system |
| CN109271010A (en) * | 2017-07-18 | 2019-01-25 | 技嘉科技股份有限公司 | RTC battery detection method and the computer apparatus for using this method |
| CN109391799A (en) * | 2017-08-14 | 2019-02-26 | 杭州海康威视数字技术股份有限公司 | A kind of monitor video synchronous method, device and video capture device |
| CN111538371A (en) * | 2020-07-07 | 2020-08-14 | 飞天诚信科技股份有限公司 | Real-time clock device, working method thereof and USB (universal serial bus) equipment |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2315887B (en) * | 1996-07-27 | 2000-07-05 | Motorola Gmbh | Method and apparatus for re-programming memory device |
| US7457904B2 (en) * | 2004-12-16 | 2008-11-25 | Hewlett-Packard Development Company, L.P. | Methods and systems for a reference clock |
| CN100362522C (en) * | 2006-03-31 | 2008-01-16 | 北京飞天诚信科技有限公司 | Real time clock correcting method in soft ware protecter |
-
2007
- 2007-06-11 CN CN2007101264577A patent/CN101324799B/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105229593A (en) * | 2013-05-22 | 2016-01-06 | 吉姆索移动通信有限公司 | The remote update of portable storage device |
| CN105229593B (en) * | 2013-05-22 | 2019-08-27 | 吉姆索移动通信有限公司 | The long-range update of portable storage device |
| CN106292257A (en) * | 2016-08-17 | 2017-01-04 | 合肥申目电子科技有限公司 | A kind of can be with the USB insert card type time display of system time synchronization |
| CN106326059A (en) * | 2016-09-18 | 2017-01-11 | 合肥移顺信息技术有限公司 | Embedded equipment automatic testing system |
| CN106326059B (en) * | 2016-09-18 | 2019-01-08 | 合肥移顺信息技术有限公司 | A kind of embedded device automatization test system |
| CN109271010A (en) * | 2017-07-18 | 2019-01-25 | 技嘉科技股份有限公司 | RTC battery detection method and the computer apparatus for using this method |
| CN109391799A (en) * | 2017-08-14 | 2019-02-26 | 杭州海康威视数字技术股份有限公司 | A kind of monitor video synchronous method, device and video capture device |
| CN111538371A (en) * | 2020-07-07 | 2020-08-14 | 飞天诚信科技股份有限公司 | Real-time clock device, working method thereof and USB (universal serial bus) equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101324799B (en) | 2011-08-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101324799B (en) | Portable memory device and synchronization method thereof | |
| CN100530134C (en) | System and method of measurement for a distributed computer system | |
| CN109346122B (en) | Method and device for testing performance of solid state disk | |
| CN104281413B (en) | Command queue's management method, Memory Controller and memorizer memory devices | |
| CN102063747B (en) | CAN data logger | |
| KR20160003531A (en) | An external storage device, and a method of setting up a reference frequency of the same | |
| US8675005B2 (en) | Waveform observing apparatus and system thereof | |
| US8006004B2 (en) | Non-intrusive debug port interface | |
| CN101739322B (en) | Test device and method of embedded system | |
| US8856422B2 (en) | Memory card controller, memory card adaptor and memory card drive | |
| US20080270816A1 (en) | Portable data storage apparatus and synchronization method for the same | |
| CN103019969A (en) | Flash memory storage device and determination method of bad storage area thereof | |
| CN100481895C (en) | Method and device for carrying out TV set software upgrade | |
| US7747909B2 (en) | Debug card | |
| CN101996686B (en) | Method and device for writing test data into memory | |
| CN103809502A (en) | Controller and program | |
| CN112181460B (en) | Program firmware upgrading method and device, electronic equipment and storage medium | |
| TW594474B (en) | Upgrade method of BIOS in notebook computer | |
| CN107562766B (en) | Data file writing method, device and system | |
| CN104318280A (en) | Method for reading and writing SD card by upper computer via USB | |
| CN102236747A (en) | Method for upgrading conventional computer into trusted computer | |
| CN115617411A (en) | Electronic equipment data processing method and device, electronic equipment and storage medium | |
| CN211149251U (en) | Multi-channel data acquisition system | |
| TWI338247B (en) | Portable data storage apparatus and synchronization method for the same | |
| CN117406934B (en) | Flash memory data access method, electric quantity calculation method, device and storage medium |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |