CN105389125B - EMMC high-temperature protection method and device - Google Patents
EMMC high-temperature protection method and device Download PDFInfo
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- CN105389125B CN105389125B CN201510688000.XA CN201510688000A CN105389125B CN 105389125 B CN105389125 B CN 105389125B CN 201510688000 A CN201510688000 A CN 201510688000A CN 105389125 B CN105389125 B CN 105389125B
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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
- G06F3/0614—Improving the reliability of storage systems
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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
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Abstract
The invention discloses a kind of EMMC high-temperature protection method and devices; the method comprise the steps that creating virtual union file system in the memory of terminal device; it include backup file catalogue and embedded memory EMMC file directory in the union file system; the EMMC file directory corresponds to the store path of data in the terminal device EMMC, and the backup file catalogue corresponds to the store path of the terminal device data in EMS memory；When the temperature for detecting EMMC is the first temperature value, it controls the union file system data that application program generates are stored in the corresponding memory of the backup file catalogue, while interrupting the union file system and being based on EMMC file directory progress reading data or storage operation；Wherein, first temperature value is more than preset temperature threshold.The embodiment of the present invention can improve the heat-resisting quantity of common EMMC from software view, improve production efficiency.
Description
Technical field
The present embodiments relate to technical field of information storage more particularly to a kind of embedded memory (Embedded
Multi Media Card, EMMC) high-temperature protection method and device.
Background technique
With the high speed development of science and technology, so that the continuous high speed of the product of field of industrial automation control and consumer electronics field
Increase.Currently, for product (such as electrical equipment, space equipment and core grid equipment etc.) institute of field of industrial automation control
EMMC used in the product of the EMMC and consumer electronics field that use is produced respectively.
Due to field of industrial automation control product at runtime, due to run for a long time be possible to generate it is higher
Temperature, this requires the high-temperature resistances with higher of EMMC used in field of industrial automation control；And consumer electronics
The temperature that the product (such as smart phone, tablet computer and PC etc.) in field generates at work is relatively low, therefore disappears
There is no need to have higher high-temperature resistance by EMMC used in power-consuming subdomains.Therefore, above-mentioned difference is just brought automatically
Change difference of the EMMC in manufacture craft used in EMMC used in control field and consumer electronics field, certainly due to industry
EMMC used in dynamicization control field needs high-temperature resistance with higher, therefore its manufacturing process is increasingly complex, production week
Phase is also longer, causes production cost higher, production efficiency is relatively low.
Summary of the invention
The embodiment of the present invention provides a kind of EMMC high-temperature protection method and device, improves the resistance to of common EMMC from software view
It is high temperatures, improve production efficiency.
In a first aspect, the embodiment of the invention provides a kind of EMMC high-temperature protection methods, comprising:
Virtual union file system is created in the memory of terminal device, includes spare text in the union file system
Part catalogue and EMMC file directory, the EMMC file directory correspond to the store path of data in the terminal device EMMC,
The backup file catalogue corresponds to the store path of the terminal device data in EMS memory；
When the temperature for detecting EMMC is the first temperature value, control what the union file system generated application program
Data are stored in the corresponding memory of the backup file catalogue, while being interrupted the union file system and being based on the EMMC text
Part catalogue carries out reading data or storage operation；Wherein, first temperature value is more than preset temperature threshold.
Second aspect, the embodiment of the present invention also provide a kind of EMMC high temperature protection device, comprising:
Union file system creation module, for creating virtual union file system, institute in the memory of terminal device
It states comprising backup file catalogue and EMMC file directory in union file system, the EMMC file directory corresponds to the terminal
The store path of data in equipment EMMC, the backup file catalogue correspond to the storage road of the terminal device data in EMS memory
Diameter；
Control module, for controlling the combined paper system when the temperature for detecting the EMMC is the first temperature value
The data that application program generates are stored in the corresponding memory of the backup file catalogue by system, while interrupting the combined paper
System is based on the EMMC file directory and carries out reading data or storage operation；Wherein, first temperature value is more than default temperature
Spend threshold value.
The embodiment of the present invention is described when detecting by creating virtual union file system in the memory of terminal device
When the temperature of EMMC is more than preset temperature threshold, the data that application program generates are deposited by controlling in the union file system
Storage interrupts the union file system and is based on the EMMC file directory in the corresponding memory of the backup file catalogue
Carry out reading data or storage operation.That is, temperature be more than preset temperature threshold when, be based only on backup file catalogue into
Row file read-write operations, and deactivated EMMC, thus also avoid as frequently it is written and read and caused by temperature
Degree is lasting to be increased, and the insufficient defect of heat-resisting quantity of common EMMC can be thus compensated for from software view, avoids high temperature pair
The injury of common EMMC, without specially making EMMC resistant to high temperature using complicated manufacture craft, to improve production effect
Rate.
Detailed description of the invention
Fig. 1 is the flow diagram for the EMMC high-temperature protection method that the embodiment of the present invention one provides；
Fig. 2A is the first application scenarios schematic diagram of EMMC high-temperature protection method provided by Embodiment 2 of the present invention；
Fig. 2 B is second of application scenarios schematic diagram of EMMC high-temperature protection method provided by Embodiment 2 of the present invention；
Fig. 3 is the structural schematic diagram for the EMMC high temperature protection device that the embodiment of the present invention three provides.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawings and examples.It is understood that this place is retouched
The specific embodiment stated is used only for explaining the present invention rather than limiting the invention.It also should be noted that in order to just
Only the parts related to the present invention are shown in description, attached drawing rather than entire infrastructure.
The executing subject of EMMC high-temperature protection method provided in an embodiment of the present invention can be provided in an embodiment of the present invention
EMMC high temperature protection device, or the terminal device of EMMC high temperature protection device is integrated with (for example, smart phone, tablet computer
Deng), it is perhaps integrated with the central processing unit of the terminal device of EMMC high temperature protection device or is integrated with EMMC high temperature protection dress
The industrial automation equipment (such as electrical equipment, space equipment and core grid equipment etc.) set, which can
It is realized in a manner of using hardware or software.
Embodiment one
Fig. 1 is the flow diagram for the EMMC high-temperature protection method that the embodiment of the present invention one provides, as shown in Figure 1, specifically
Include:
Step 11 creates virtual union file system in the memory of terminal device, wraps in the union file system
Catalogue containing backup file and EMMC file directory, the EMMC file directory correspond to data in the terminal device EMMC and deposit
Path is stored up, the backup file catalogue corresponds to the store path of the terminal device data in EMS memory；
It in the present embodiment, is mostly some industrial automation equipments due to being easy to produce the terminal device of high temperature when work
(such as electrical equipment, space equipment and core grid equipment etc.), so the preferably industry of the embodiment of the present invention terminal device is certainly
Dynamicization equipment.In the prior art, it needs for the EMMC resistant to high temperature of industrial automation equipment special configuration complex manufacturing technology,
And the EMMC in the present embodiment is not EMMC resistant to high temperature, but the EMMC commonly made, for example, can be led for consumer electronics
The EMMC used on the product, that is, smart phone in domain, tablet computer, since such EMMC makes not only simple process, but also cost
It is lower, so as to save the cost and improve production efficiency.
Step 12, when detect EMMC temperature be the first temperature value when, journey will be applied by controlling the union file system
The data that sequence generates are stored in the corresponding memory of the backup file catalogue, while being interrupted the union file system and being based on institute
It states EMMC file directory and carries out reading data or storage operation；Wherein, first temperature value is more than preset temperature threshold.
Wherein, first temperature value is the temperature value that the EMMC is currently generated, and the preset temperature threshold specifically may be used
The maximum temperature value being able to bear under being worked normally according to the EMMC configured in terminal device.That is, described when detecting
When the temperature value that EMMC is currently generated is more than the maximum temperature value being able to bear, then it will not be burnt by high temperature for the protection EMMC
It ruins, then controls the union file system and interrupt based on EMMC file directory progress reading data or storage operation, simultaneously
In order to which the data for guaranteeing that application program generates are not lost, can normally work, then controlling the union file system will answer
It is stored in the corresponding memory of the backup file catalogue with the data that program generates.
The present embodiment in the memory of terminal device by creating virtual union file system, when detecting the EMMC
Temperature when being more than preset temperature threshold, the data that application program generates are stored in institute by controlling the union file system
It states in the corresponding memory of backup file catalogue, while interrupting the union file system and being counted based on the EMMC file directory
It is operated according to reading or storing.That is, being based only on backup file catalogue when temperature is more than preset temperature threshold and carrying out file
Read-write operation, and deactivated EMMC, thus also avoid as frequently it is written and read and caused by constant temperature
It increases, the insufficient defect of heat-resisting quantity of common EMMC can be thus compensated for from software view, avoids high temperature to common
The injury of EMMC, without specially making EMMC resistant to high temperature using complicated manufacture craft, to improve production efficiency.
Illustratively, on the basis of the above embodiments, when the temperature for detecting EMMC is the first temperature value, the side
Method further include:
It controls the union file system and the application program operation is read from memory according to the backup file catalogue
When required data.
Specifically, when the temperature value for detecting that the EMMC is currently generated is more than the maximum temperature value being able to bear, this
When can only control the union file system and be read out and store operation to the corresponding memory of the backup file catalogue, until
After the temperature value that the EMMC is currently generated restores to maximum temperature value, the application program is generated in this period
Data, and the data of reading needed are all stored by the corresponding memory of the backup file catalogue.
Illustratively, on the basis of the above embodiments, when the temperature for detecting the EMMC is second temperature value, control
It makes the union file system and reads the application program according in the backup file catalogue and/or the EMMC file directory
Required data when operation；Wherein, the second temperature value is less than or equal to the preset temperature threshold.
Wherein, the second temperature value is the temperature value that the EMMC is currently generated, and the preset temperature threshold specifically may be used
It is set as the maximum temperature value being able to bear under the EMMC configured in terminal device is worked normally.That is, when detecting institute
When stating temperature value that EMMC is currently generated and being less than or equal to the maximum temperature value being able to bear, then illustrate that the EMMC can be normal
Work then can control the union file system to read application program operation when institute from the EMMC file directory at this time
The data needed.
Specifically, second temperature value: first stage can be generated in following two stages in the EMMC, when the terminal is set
When standby just booting, the EMMC current temperature value is generally lower at this time, can trigger the relevant operation of the present embodiment at this time；Second
Stage then restores described when EMMC has the first temperature value to drop to second temperature, that is, when being down to normal temperature by high temperature
File system is closed to operate the reading of the EMMC file directory and storage.
Illustratively, on the basis of the above embodiments, when the temperature for detecting the EMMC is second temperature value, institute
State method further include:
It controls in data that application program generates are stored according to the backup file catalogue by the union file system
In depositing, and control the data real-time transmission to the corresponding EMMC of the EMMC file directory according to the backup file catalogue
In backed up；
The data in the backup file catalogue are emptied, returns and executes storage operation.
Specifically, when the temperature for detecting the EMMC is second temperature value, that is to say, that current in the EMMC
When temperature value is below or equal to the maximum temperature value being able to bear, both can control the union file system at this time will be applied
The data that program generates are stored in the backup file catalogue and are stored in memory, corresponding from the backup file catalogue
Data are read in memory, and can read data from the corresponding EMMC of the EMMC file directory.
Data in the EMMC can be same by controlling the data that the backup file catalogue generates the application program
Step is backed up into the corresponding EMMC of the EMMC file directory.Meanwhile in order to keep the backup file catalogue corresponding interior
Depositing at high temperature has enough memory spaces to carry out storing data, needs to control the backup file catalogue and passes the data in real time
It send into the corresponding EMMC of the EMMC file directory, while emptying the data in the backup file catalogue.
It is carried out in addition, being synchronized in the corresponding EMMC of the EMMC file directory in the data for generating the application program
When backup, it can be realized by inotify mechanism.Wherein, the inotify is a linux kernel characteristic, in the present embodiment
In, it can monitor the variation of the backup file catalogue in union file system, determine that the backup file catalogue has data
When variation, then the data of corresponding change are synchronized into the corresponding EMMC of EMMC file directory.
Illustratively, on the basis of the above embodiments, the union file system is aufs file system；
Correspondingly, the backup file catalogue is tmpfs file directory.
Wherein, the aufs is a file system, different file directorys can be united, so that different
File in file directory is presented on newly-built aufs union file system jointly, such as can establish aufs text by such as giving an order
Part system:
Mount-t aufs-o br=/a=rw:/b/c
Correspondingly, resettling a tmpfs file directory on the basis of creating above-mentioned aufs file system.It is described
Tmpfs file directory is a kind of file system memory-based, is also based on random access memory (random access
Memory, RAM) best file system.And it is different from most of standard file system, such as the third generation extends file
System (Third extended filesystem, ext3) and ReiserFS file system etc., tmpfs is not to be present in one
It above a bottom block device, but directly establishes on virtual memory, with following one simple mount order
Create tmpfs file directory:
Mount-t tmpfs-o size=10M tmpfs/tmpfs
Therefore, use aufs file system as union file system, it can be simply and easily by the tmpfs file
Catalogue and the EMMC file directory are united.Meanwhile also facilitating the reading and storage operation of data.
The various embodiments described above in the memory of terminal device equally by creating virtual union file system, when detecting
When the temperature of the EMMC is more than preset temperature threshold, the data that are generated application program by controlling the union file system
It is stored in the corresponding memory of the backup file catalogue, while interrupting the union file system and being based on the EMMC file mesh
Record carries out reading data or storage operation.That is, being based only on backup file catalogue when temperature is more than preset temperature threshold
Carry out file read-write operations, and deactivated EMMC, thus also avoid as frequently it is written and read and caused by
Constant temperature increases, and the insufficient defect of heat-resisting quantity of common EMMC can be thus compensated for from software view, avoids high temperature
Injury to common EMMC, without specially making EMMC resistant to high temperature using complicated manufacture craft, to improve production
Efficiency.
Embodiment two
The present embodiment is directed to the not equality of temperature that the EMMC is generated by taking aufs file system and tmpfs file directory as an example
The stage is spent, for controlling the aufs file system to the operating process point of the tmpfs file directory and EMMC file directory
It is not described in detail.
As shown in Figure 2 A, when the terminal device is just switched on, the EMMC current temperature value is generally lower at this time, this
When, it can control the aufs file system data that application program generates can be stored in the tmpfs file directory corresponding
In memory, and the aufs file system can control to read institute from the tmpfs file directory and the EMMC file directory
Required data when application program operation are stated, while in order to guarantee the corresponding memory of the tmpfs file directory at high temperature
There are enough memory spaces to carry out storing data, need to control the tmpfs file directory data are transferred in real time it is described
In the corresponding EMMC of EMMC file directory, the data in the tmpfs file directory are emptied.
As shown in Figure 2 B, when EMMC current temperature value will be more than the maximum temperature value being able to bear, then institute is interrupted
It states aufs file system and is based on EMMC file directory progress reading data or storage operation.Only allow aufs file system
The data that application program generates are stored in the corresponding memory of the tmpfs file directory by system, and pass through the tmpfs file
Catalogue reads the data needed when application program operation.
It is when the current temperature value of EMMC is restored to the maximum temperature value being able to bear or less, then literary from the aufs is restored
Part system operates the reading and storage of the EMMC file directory.As shown in Figure 2 B, meanwhile, by the tmpfs file directory
In data variation be synchronized in the EMMC file directory.
Embodiment three
Fig. 3 is the structural schematic diagram for the EMMC high temperature protection device that the embodiment of the present invention three provides, as shown in figure 3, specifically
It include: union file system creation module 31 and control module 32；
The union file system creation module 31 in the memory of terminal device for creating virtual combined paper system
It unites, includes backup file catalogue and EMMC file directory in the union file system, the EMMC file directory corresponds to institute
The store path of data in terminal device EMMC is stated, the backup file catalogue corresponds to the terminal device data in EMS memory
Store path；
The control module 32 is used to control the joint text when the temperature for detecting the EMMC is the first temperature value
The data that application program generates are stored in the corresponding memory of the backup file catalogue by part system, while interrupting the joint
File system is based on the EMMC file directory and carries out reading data or storage operation；Wherein, first temperature value is more than pre-
If temperature threshold.
EMMC high temperature protection device described in the present embodiment is for executing EMMC high temperature protection described in the various embodiments described above
The technical effect of method, technical principle and generation is similar, is described again here.
Illustratively, on the basis of the above embodiments, the control module 31 is also used to:
When the temperature for detecting the EMMC is second temperature value, the union file system is controlled according to described spare
Required data when application program operation are read in file directory and/or the EMMC file directory；Wherein, described
Two temperature values are less than or equal to the preset temperature threshold.
Illustratively, on the basis of the above embodiments, the control module 32 is specifically used for:
It controls the union file system and the application program operation is read from memory according to the backup file catalogue
When required data.
Illustratively, on the basis of the above embodiments, the control module 32 is specifically used for:
It controls in data that application program generates are stored according to the backup file catalogue by the union file system
In depositing, and control the data real-time transmission to the corresponding EMMC of the EMMC file directory according to the backup file catalogue
In backed up；
Described device further include: data empty module 33；
The data empty module 33 for emptying the data in the backup file catalogue, return and execute the control mould
The storage of block 32 operates.
Illustratively, on the basis of the above embodiments, the union file system is aufs file system；
Correspondingly, the backup file catalogue is tmpfs file directory.
EMMC high temperature protection device described in the various embodiments described above is equally used for executing EMMC described in the various embodiments described above
The technical effect of high-temperature protection method, technical principle and generation is similar, is described again here.
Note that the above is only a better embodiment of the present invention and the applied technical principle.It will be appreciated by those skilled in the art that
The invention is not limited to the specific embodiments described herein, be able to carry out for a person skilled in the art it is various it is apparent variation,
It readjusts and substitutes without departing from protection scope of the present invention.Therefore, although being carried out by above embodiments to the present invention
It is described in further detail, but the present invention is not limited to the above embodiments only, without departing from the inventive concept, also
It may include more other equivalent embodiments, and the scope of the invention is determined by the scope of the appended claims.
Claims (10)
1. a kind of embedded memory EMMC high-temperature protection method characterized by comprising
Virtual union file system is created in the memory of terminal device, includes backup file mesh in the union file system
Record and EMMC file directory, the EMMC file directory correspond to the store path of data in the EMMC of the terminal device, institute
State store path of the backup file catalogue corresponding to the data in EMS memory of the terminal device, wherein the terminal device is work
Industry automation equipment；
When the temperature for detecting EMMC is the first temperature value, the data that the union file system generates application program are controlled
It is stored in the corresponding memory of the backup file catalogue, while interrupting the union file system and being based on the EMMC file mesh
Record carries out reading data or storage operation；Wherein, first temperature value is more than preset temperature threshold.
2. the method according to claim 1, wherein further include:
When the temperature for detecting the EMMC is second temperature value, the union file system is controlled according to the backup file
Required data when application program operation are read in catalogue and/or the EMMC file directory；Wherein, second temperature
Angle value is less than or equal to the preset temperature threshold.
3. the method according to claim 1, wherein further include:
It controls the union file system and application program operation when institute is read from memory according to the backup file catalogue
The data needed.
4. according to the method described in claim 2, it is characterized by further comprising:
The union file system is controlled to be stored in memory the data that application program generates according to the backup file catalogue,
And control according to the backup file catalogue by the data real-time transmission into the corresponding EMMC of the EMMC file directory into
Row backup；
The data in the backup file catalogue are emptied, returns and executes storage operation.
5. method according to any one of claims 1 to 4, which is characterized in that the union file system is aufs file
System；
Correspondingly, the backup file catalogue is tmpfs file directory.
6. a kind of embedded memory EMMC high temperature protection device characterized by comprising
Union file system creation module, it is described for creating virtual union file system in the memory of terminal device
Closing includes backup file catalogue and EMMC file directory in file system, and the EMMC file directory corresponds to the terminal device
EMMC in data store path, the backup file catalogue correspond to the terminal device data in EMS memory storage road
Diameter, wherein the terminal device is industrial automation equipment；
Control module, for when the temperature for detecting the EMMC is the first temperature value, controlling the union file system will
The data that application program generates are stored in the corresponding memory of the backup file catalogue, while interrupting the union file system
Reading data or storage operation are carried out based on the EMMC file directory；Wherein, first temperature value is more than preset temperature threshold
Value.
7. device according to claim 6, which is characterized in that the control module is also used to:
When the temperature for detecting the EMMC is second temperature value, the union file system is controlled according to the backup file
Required data when application program operation are read in catalogue and/or the EMMC file directory；Wherein, second temperature
Angle value is less than or equal to the preset temperature threshold.
8. device according to claim 6, which is characterized in that the control module is specifically used for:
It controls the union file system and application program operation when institute is read from memory according to the backup file catalogue
The data needed.
9. device according to claim 7, which is characterized in that the control module is specifically used for:
The union file system is controlled to be stored in memory the data that application program generates according to the backup file catalogue,
And control according to the backup file catalogue by the data real-time transmission into the corresponding EMMC of the EMMC file directory into
Row backup；
Described device further include:
Data empty module, for emptying the data in the backup file catalogue, return to the storage for executing the control module
Operation.
10. according to the described in any item devices of claim 6~9, which is characterized in that the union file system is aufs file
System；
Correspondingly, the backup file catalogue is tmpfs file directory.
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| CN201510688000.XA CN105389125B (en) | 2015-10-21 | 2015-10-21 | EMMC high-temperature protection method and device |
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| CN114594990B (en) * | 2022-05-10 | 2022-08-05 | 深圳佰维存储科技股份有限公司 | eMMC operation method, eMMC operation device, readable storage medium and electronic equipment |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101578614A (en) * | 2007-01-30 | 2009-11-11 | 松下电器产业株式会社 | Nonvolatile storage device, nonvolatile storage system, and access device |
| CN103167147A (en) * | 2012-09-20 | 2013-06-19 | 深圳市金立通信设备有限公司 | Smartphone high-speed continuous shooting system and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US6974252B2 (en) * | 2003-03-11 | 2005-12-13 | Intel Corporation | Failsafe mechanism for preventing an integrated circuit from overheating |
| CN103035282B (en) * | 2011-09-30 | 2016-01-20 | 群联电子股份有限公司 | Memorizer memory devices, Memory Controller and method for managing temperature |
| CN103064799B (en) * | 2011-10-21 | 2016-03-09 | 神讯电脑(昆山)有限公司 | Electronic system and data security method thereof and device |
| CN104898982B (en) * | 2014-03-03 | 2018-04-24 | 群联电子股份有限公司 | Data transmission method, memorizer control circuit unit and memorizer memory devices |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101578614A (en) * | 2007-01-30 | 2009-11-11 | 松下电器产业株式会社 | Nonvolatile storage device, nonvolatile storage system, and access device |
| CN103167147A (en) * | 2012-09-20 | 2013-06-19 | 深圳市金立通信设备有限公司 | Smartphone high-speed continuous shooting system and method |
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