CN105657169B - A kind of data guard method, device and mobile terminal - Google Patents
A kind of data guard method, device and mobile terminal Download PDFInfo
- Publication number
- CN105657169B CN105657169B CN201610010095.4A CN201610010095A CN105657169B CN 105657169 B CN105657169 B CN 105657169B CN 201610010095 A CN201610010095 A CN 201610010095A CN 105657169 B CN105657169 B CN 105657169B
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- Prior art keywords
- mobile terminal
- output voltage
- storage unit
- adjustable source
- unlock instruction
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- 238000000034 method Methods 0.000 title claims abstract description 30
- 238000001514 detection method Methods 0.000 claims abstract description 13
- 230000005611 electricity Effects 0.000 claims description 6
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 230000001681 protective effect Effects 0.000 claims description 2
- 230000006870 function Effects 0.000 description 18
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000151 deposition Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
- H04M1/724—User interfaces specially adapted for cordless or mobile telephones
- H04M1/72448—User interfaces specially adapted for cordless or mobile telephones with means for adapting the functionality of the device according to specific conditions
- H04M1/72463—User interfaces specially adapted for cordless or mobile telephones with means for adapting the functionality of the device according to specific conditions to restrict the functionality of the device
Abstract
The invention discloses a kind of data guard method, device and mobile terminals, which comprises user acts at least one unlock instruction of mobile terminal in detection setting time；When at least one described unlock instruction meets and imposes a condition, adjust the supply voltage of output voltage adjustable source, to damage the storage unit of the mobile terminal or close the access function to the storage unit of mobile terminal, the output voltage adjustable source is used to power for the storage unit.Technical solution provided in an embodiment of the present invention, by when at least one unlock instruction detected meets and imposes a condition, adjust the supply voltage of output voltage adjustable source, to damage the storage unit of mobile terminal or close the technological means of the access function to the storage unit of mobile terminal, the leakage of data information, improves the safety of mobile terminal data information after preventing mobile terminal to lose.
Description
Technical field
The present invention relates to technical field of mobile terminals more particularly to a kind of data guard methods, device and mobile terminal.
Background technique
With the fast development of mobile terminal technology, corresponding function is also more and more abundant on mobile terminal, and usually one
Mobile terminal assembles multiple functions, for example, a mobile phone can also pass through installation branch other than it can communicate
It pays the realizations such as software or Mobile banking conveniently to pay, is brought to user and more enrich happy user experience.
However, user is also increasingly stronger to the dependence of mobile terminal as the function on mobile terminal is stronger and stronger,
Many important data informations are all stored on mobile terminals, such as Mobile banking, mail, information, address list, microblogging, application
Software chat record, personal photo etc., once mobile terminal loss leaks out these data informations, it will individual brought
Immeasurable loss.
Summary of the invention
The embodiment of the present invention provides a kind of data guard method, device and mobile terminal, after preventing mobile terminal from losing
The leakage of data information improves the safety of mobile terminal data information.
To achieve this purpose, the present invention adopts the following technical scheme:
In a first aspect, the embodiment of the present invention provides a kind of data guard method, comprising:
User acts at least one unlock instruction of mobile terminal in detection setting time；
When at least one described unlock instruction meets and imposes a condition, the power supply electricity of output voltage adjustable source is adjusted
Pressure, to damage the storage unit of the mobile terminal or close the access function to the storage unit of mobile terminal, the output
Voltage adjustable source is used to power for the storage unit.
In second aspect, the embodiment of the present invention provides a kind of data protecting device, comprising:
Unlock instruction detection module, at least one unlock that mobile terminal is acted on for detecting user in setting time refer to
It enables；
Supply voltage adjusts module, for adjusting output electricity when at least one described unlock instruction meets and imposes a condition
The supply voltage of adjustable source is pressed, to damage the storage unit of the mobile terminal or close the storage unit to mobile terminal
Access function, the output voltage adjustable source be used for for the storage unit power.
In the third aspect, the embodiment of the present invention provides a kind of mobile terminal, and the mobile terminal is integrated with such as second aspect
The data protecting device.
The embodiment of the present invention acts at least one unlock instruction of mobile terminal by user in detection setting time,
When at least one unlock instruction detected meets setting condition, the supply voltage of output voltage adjustable source is adjusted, with damage
The storage unit of bad mobile terminal or the technological means for closing the access function to the storage unit of mobile terminal, it is therefore prevented that mobile
The leakage of data information after lost terminal, improves the safety of mobile terminal data information.
Detailed description of the invention
In order to more clearly illustrate the technical scheme of the exemplary embodiment of the present invention, below to required in description embodiment
The attached drawing to be used does a simple introduction.Obviously, the attached drawing introduced is present invention a part of the embodiment to be described
Attached drawing, rather than whole attached drawings without creative efforts, may be used also for those of ordinary skill in the art
To obtain other attached drawings according to these attached drawings.
Fig. 1 is the flow chart for the data guard method that the embodiment of the present invention one provides；
Fig. 2 is the flow chart of data guard method provided by Embodiment 2 of the present invention；
Fig. 3 is the flow chart for the data guard method that the embodiment of the present invention three provides；
Fig. 4 is the structural schematic diagram for the data protecting device that the embodiment of the present invention four provides.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawing to of the invention specific real
Example is applied to be described in further detail.It is understood that specific embodiment described herein is used only for explaining the present invention,
Rather than limitation of the invention.It also should be noted that illustrating only for ease of description, in attached drawing related to the present invention
Part rather than full content.It should be mentioned that some exemplary realities before exemplary embodiment is discussed in greater detail
It applies example and is described as the processing or method described as flow chart.Although operations (or step) are described as sequence by flow chart
Processing, but many of these operations can be implemented concurrently, concomitantly or simultaneously.In addition, the sequence of operations
It can be rearranged.The processing can be terminated when its operations are completed, be not included in attached drawing it is also possible to have
Additional step.The processing can correspond to method, function, regulation, subroutine, subprogram etc..
Embodiment one:
Fig. 1 gives the flow chart of the data guard method of the offer of the present embodiment one, and this method can be filled by data protection
It sets to execute, wherein described device can be implemented by software and/or hardware, and a part that can be used as mobile terminal is built in movement
Terminal inner is preferably built in a software form in the operating system of mobile terminal.As shown in Figure 1, provided in this embodiment
Data guard method includes the following steps:
User acts at least one unlock instruction of mobile terminal in step 101, detection setting time.
Mobile terminal in the present embodiment can be the equipment such as mobile phone, notebook, PAD intelligent terminal, tablet computer.
The setting time can be determined according to the demand of user, for example, setting time is 5 minutes, the setting
It can be for when detecting first unlock instruction within a preset period of time, then at least one described unlock refers at the beginning of time
It enables as detected unlock instruction in five minutes for detecting that first unlock instruction start.
The unlock instruction is that user acts on instruction caused by the unlock operation of terminal, and the unlock operation includes using
Family inputs the operation of unlocking pin or the unlocking pattern.
Wherein, the user acts on the number of at least one unlock instruction of mobile terminal and user acts on movement eventually
The unlock number at end is corresponding.
Step 102, when described at least one unlock instruction meets and imposes a condition, adjustment output voltage adjustable source
Supply voltage, to damage the storage unit of the mobile terminal or close the access function to the storage unit of mobile terminal, institute
State output voltage adjustable source for for the storage unit power supply.
The output voltage adjustable source is the adjustable power supply of output voltage, built-in in mobile terminal
Portion powers for the storage unit.At least one described unlock instruction is being not detected, or detect it is described at least one
When unlock instruction is unsatisfactory for imposing a condition, the output voltage adjustable source provides the confession for normal work for storage unit
Piezoelectric voltage.
The output voltage adjustable source includes: low pressure difference linearity pressure stabilizing (Low Dropout Regulator, LDO)
Power supply and DC/DC conversion (Direct Current-Direct Current, DC-DC) power supply.
Preferably, the storage unit of the mobile terminal is embedded multi-media card (Embedded Multi Media
Card, abbreviation EMMC).
EMMC is embedded ordered by MMC association (Multi Media Card Association, abbreviation MMCA) deposits
Reservoir standard specification, primarily directed to mobile terminals such as mobile phone or tablet computers.EMMC is a kind of embedded non-volatile storage
Device system is made of flash memory and flash controller two.A clear superiority of EMMC is to be integrated with a flash memory in a package
Controller, it is encapsulated using ball grid array (Ball Grid Array, BGA), and manages flash memory using unified flash interface.
Wherein, mobile terminal mostly uses EMMC as storage medium, by the EMMC or the closing pair that damage mobile terminal
The access function of the EMMC achievees the purpose that damage storage medium or close to storage medium access function.
It is described at least one described unlock instruction meet impose a condition when, adjust output voltage adjustable source power supply
Voltage may include: to reach the first setting number in the number of at least one unlock instruction, and each unlock instruction is corresponding
When user's input information and the matching degree for setting unlocking information are both less than setting value, the power supply of output voltage adjustable source is adjusted
Voltage；Alternatively, adjusting output voltage adjustable source when the number of at least one unlock instruction reaches the second setting number
Supply voltage.
Wherein, the first setting number can take less than the second setting number, the first setting number and the second the specific of setting number
Value can be set according to the demand of user, cause to meet setting condition in order to prevent due to the multiple maloperation of user,
False triggering adjusts the operation of the supply voltage of output voltage adjustable source, can be by the first setting number and the second setting number
It is set as larger number.The setting value of the matching degree can also be set according to the demand of user, and if desired stringent
Information and setting unlocking information are inputted with user, then setting value is set as larger number, conversely, setting value can be set as
Smaller number.
The unlocking information that sets is preset for unlocking according to the information of user's input as before this step
Information, the setting unlocking information may include setting unlocking pin or setting the unlocking pattern, and the present embodiment do not limit this
System.
Illustratively, unlocking pin is set as four figures 1101, if the password of user's input is 1120, matching degree is
50%, if the password of user's input is 1220, matching degree 25%.
Illustratively, described first set number as 3, setting code is four figures 1101, setting value 50%, it is described extremely
The number of a few unlock instruction reaches 3, and the information of the corresponding user's input of each unlock instruction in this 3 unlock instructions
When being both less than 50% with the matching degree of setting unlocking information, then the supply voltage of output voltage adjustable source is adjusted.
The owner user of general mobile terminal can correctly enter unlocking information in the first setting number, only mobile whole
Other users can just generate unlock number and reach the first setting number when being unlocked before using the mobile terminal after end is lost
, and the unlocking information inputted each time is all with the very low phenomenon of setting unlocking information matching degree, it can by above-mentioned technological means
With fast and accurately by adjusting the supply voltage of output voltage adjustable source, to prevent other users from depositing mobile terminal
The access of storage unit ensure that the safety of mobile terminal data.
Illustratively, described second number is set as 5, when the number of at least one unlock instruction reaches 5, then adjust
The supply voltage of output voltage adjustable source.
Data guard method provided in this embodiment acts on mobile terminal at least by user in detection setting time
One unlock instruction adjusts output voltage adjustable source when at least one unlock instruction detected meets and imposes a condition
Supply voltage, to damage the storage unit of mobile terminal or close the technology to the access function of the storage unit of mobile terminal
Means, it is therefore prevented that the leakage of data information after mobile terminal is lost improves the safety of mobile terminal data information.
Embodiment two:
Fig. 2 gives the flow chart of the data guard method of the offer of the present embodiment two, and the present embodiment is with the various embodiments described above
Based on optimize, in the present embodiment will adjust output voltage adjustable source supply voltage, to damage mobile terminal
Storage unit specifically optimize are as follows: the supply voltage of the output voltage adjustable source is adjusted to the storage list of mobile terminal
More than the setting upper limit voltage of member, to burn out the storage unit.
Correspondingly, as shown in Fig. 2, data guard method provided in this embodiment includes the following steps:
User acts at least one unlock instruction of mobile terminal in step 201, detection setting time.
Step 202, at least one described unlock instruction meet impose a condition when, by the output voltage adjustable source
Supply voltage adjust to more than the setting upper limit voltage of the storage unit of mobile terminal, it is described to burn out the storage unit
Output voltage adjustable source is used to power for the storage unit.
Wherein, at least one described unlock instruction meets the number that setting condition includes: at least one unlock instruction
Reach the first setting number, and the corresponding user of each unlock instruction inputs information and both less than sets with the matching degree for setting unlocking information
Definite value；Alternatively, the number of at least one unlock instruction reaches the second setting number.
The upper limit voltage is the upper limit (UL) voltage that storage unit is able to bear, and is rationed the power supply when supply voltage is greater than on described
When pressure, then the storage unit will be burnt out.
Data guard method provided in an embodiment of the present invention acts on mobile terminal by user in detection setting time
At least one unlock instruction, it is when at least one unlock instruction detected meets and imposes a condition, the output voltage is adjustable
The supply voltage in economize on electricity source is adjusted to more than the setting upper limit voltage of the storage unit of mobile terminal, to burn out the storage unit
Technological means, it is therefore prevented that mobile terminal lose after data information leakage, improve the safety of mobile terminal data information.
Embodiment three:
Fig. 3 gives the flow chart of the data guard method of the offer of the present embodiment three, and the present embodiment is with the various embodiments described above
Based on optimize, the supply voltage of output voltage adjustable source will be adjusted in the present embodiment, with close to it is mobile eventually
The access function of the storage unit at end specifically optimizes are as follows: adjusts the supply voltage of the output voltage adjustable source to movement
The setting lower voltage limit of the storage unit of terminal hereinafter, the control output voltage adjustable source stop power supply, to close
Close the access function to the storage unit of mobile terminal.
Correspondingly, as shown in figure 3, data guard method provided in this embodiment includes the following steps:
User acts at least one unlock instruction of mobile terminal in step 301, detection setting time.
Step 302, at least one described unlock instruction meet impose a condition when, by the output voltage adjustable source
Supply voltage adjust to the setting lower voltage limit of the storage unit of mobile terminal hereinafter, the control output voltage it is adjustable
Power outage is saved, to close the access function to the storage unit of mobile terminal, the output voltage adjustable source is used
It powers in for the storage unit.
Wherein, at least one described unlock instruction meets the number that setting condition includes: at least one unlock instruction
Reach the first setting number, and the corresponding user of each unlock instruction inputs information and both less than sets with the matching degree for setting unlocking information
Definite value；Alternatively, the number of at least one unlock instruction reaches the second setting number.
The minimum voltage of storage unit is asked in the lower voltage limit frequentation that is positive, when supply voltage is less than the lower voltage limit
When, then it can not normally access storage unit.
Data guard method provided in this embodiment acts on mobile terminal at least by user in detection setting time
One unlock instruction, when at least one unlock instruction detected meets and imposes a condition, by the adjustable economize on electricity of the output voltage
The supply voltage in source adjust to the setting lower voltage limit of the storage unit of mobile terminal hereinafter, the control output voltage can
Power outage is adjusted, to close the technological means of the access function to the storage unit of mobile terminal, it is therefore prevented that mobile whole
The leakage of data information, improves the safety of mobile terminal data information after end is lost.
Example IV:
Fig. 4 gives the structural schematic diagram of the data protecting device of the offer of the embodiment of the present invention four.As shown in figure 4, this reality
The data protecting device of example offer is provided, comprising:
Unlock instruction detection module 41 acts at least one unlock of mobile terminal for detecting user in setting time
Instruction；
Supply voltage adjusts module 42, for adjusting output when at least one described unlock instruction meets and imposes a condition
The supply voltage of voltage adjustable source, to damage the storage unit of the mobile terminal or close the storage list to mobile terminal
The access function of member, the output voltage adjustable source are used to power for the storage unit.
On the basis of the various embodiments described above, the confession of the supply voltage adjustment module adjustment output voltage adjustable source
Piezoelectric voltage, to damage the storage unit of mobile terminal specifically:
The supply voltage of the output voltage adjustable source is adjusted to the setting upper limit of the storage unit of mobile terminal
More than voltage, to burn out the storage unit.
On the basis of the various embodiments described above, the confession of the supply voltage adjustment module adjustment output voltage adjustable source
Piezoelectric voltage, to close the access function to the storage unit of mobile terminal specifically:
The supply voltage of the output voltage adjustable source is adjusted to the setting lower limit of the storage unit of mobile terminal
Voltage hereinafter, the control output voltage adjustable source stop power supply, to close to the storage unit of mobile terminal
Access function.
On the basis of the various embodiments described above, the output voltage adjustable source includes: low pressure difference linearity regulated power supply
With DC/DC conversion power supply.
On the basis of the various embodiments described above, the supply voltage adjustment module meets at least one described unlock instruction
When setting condition, the supply voltage of output voltage adjustable source is adjusted specifically:
Reach the first setting number in the number of at least one unlock instruction, and the corresponding user of each unlock instruction is defeated
Enter information and the matching degree for setting unlocking information when being both less than setting value, adjusts the supply voltage of output voltage adjustable source；
Alternatively,
When the number of at least one unlock instruction reaches the second setting number, adjustment output voltage adjustable source
Supply voltage.
On the basis of the various embodiments described above, the storage unit is embedded multi-media card.
The data protection side that any embodiment of that present invention provides can be performed in data protecting device provided in an embodiment of the present invention
Method has the corresponding functional module of execution method and beneficial effect.
In addition, the present embodiment also provides a kind of mobile terminal, the mobile terminal is integrated with the number of the offer of the present embodiment four
According to protective device, described device can be performed the data guard method that any embodiment of that present invention provides, it is corresponding to have execution method
Functional module and beneficial effect.
The technical principle that above are only presently preferred embodiments of the present invention and used.The present invention is not limited to spies described here
Determine embodiment, various significant changes, readjustment and the substitution being able to carry out for a person skilled in the art are not departing from
Protection scope of the present invention.Therefore, although the present invention has been described in more detail through the above examples, this hair
It is bright to be not limited only to above embodiments, it can also include other more equivalence enforcements without departing from the inventive concept
Example, and the scope of the present invention is determined by the scope of the claims.
Claims (9)
1. a kind of data guard method characterized by comprising
User acts at least one unlock instruction of mobile terminal in detection setting time；
When at least one described unlock instruction meets and imposes a condition, the supply voltage of output voltage adjustable source is adjusted, with
The access function to the storage unit of mobile terminal is closed, the output voltage adjustable source is used to supply for the storage unit
Electricity；
Wherein, the supply voltage of the adjustment output voltage adjustable source, to close the visit to the storage unit of mobile terminal
Ask that function includes:
The supply voltage of the output voltage adjustable source is adjusted to the setting lower voltage limit of the storage unit of mobile terminal
Hereinafter, the control output voltage adjustable source stop power supply, to close the access to the storage unit of mobile terminal
Function.
2. the method according to claim 1, wherein the output voltage adjustable source includes: low voltage difference line
Property regulated power supply and DC/DC conversion power supply.
3. the method according to claim 1, wherein described meet setting item at least one described unlock instruction
When part, the supply voltage of adjustment output voltage adjustable source includes:
Reach the first setting number in the number of at least one unlock instruction, and the corresponding user of each unlock instruction inputs letter
When the matching degree of breath and setting unlocking information is both less than setting value, the supply voltage of output voltage adjustable source is adjusted；Alternatively,
When the number of at least one unlock instruction reaches the second setting number, the power supply of output voltage adjustable source is adjusted
Voltage.
4. method according to claim 1-3, which is characterized in that the storage unit is built-in multimedia
Card.
5. a kind of data protecting device characterized by comprising
Unlock instruction detection module acts at least one unlock instruction of mobile terminal for detecting user in setting time；
Supply voltage adjusts module, for when at least one described unlock instruction meets and imposes a condition, adjustment output voltage can
The supply voltage of power supply is adjusted, to close the access function to the storage unit of mobile terminal, the adjustable economize on electricity of output voltage
Source is used to power for the storage unit；
Wherein, the supply voltage of the supply voltage adjustment module adjustment output voltage adjustable source, to close to mobile whole
The access function of the storage unit at end specifically:
The supply voltage of the output voltage adjustable source is adjusted to the setting lower voltage limit of the storage unit of mobile terminal
Hereinafter, the control output voltage adjustable source stop power supply, to close the access to the storage unit of mobile terminal
Function.
6. device according to claim 5, which is characterized in that the output voltage adjustable source includes: low voltage difference line
Property regulated power supply and DC/DC conversion power supply.
7. device according to claim 5, which is characterized in that the supply voltage adjustment module is at least one described solution
When lock instruction meets setting condition, the supply voltage of output voltage adjustable source is adjusted specifically:
Reach the first setting number in the number of at least one unlock instruction, and the corresponding user of each unlock instruction inputs letter
When the matching degree of breath and setting unlocking information is both less than setting value, the supply voltage of output voltage adjustable source is adjusted；Alternatively,
When the number of at least one unlock instruction reaches the second setting number, the power supply of output voltage adjustable source is adjusted
Voltage.
8. according to the described in any item devices of claim 5-7, which is characterized in that the storage unit is built-in multimedia
Card.
9. a kind of mobile terminal, which is characterized in that the mobile terminal is integrated with such as the described in any item data of claim 5-8
Protective device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610010095.4A CN105657169B (en) | 2016-01-05 | 2016-01-05 | A kind of data guard method, device and mobile terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610010095.4A CN105657169B (en) | 2016-01-05 | 2016-01-05 | A kind of data guard method, device and mobile terminal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105657169A CN105657169A (en) | 2016-06-08 |
| CN105657169B true CN105657169B (en) | 2019-02-19 |
Family
ID=56490607
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610010095.4A Expired - Fee Related CN105657169B (en) | 2016-01-05 | 2016-01-05 | A kind of data guard method, device and mobile terminal |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100296371B1 (en) * | 1998-12-31 | 2001-08-07 | 최기주 | Computer having security device |
| CN102880560A (en) * | 2011-07-11 | 2013-01-16 | 三星电子（中国）研发中心 | User privacy data protection method and mobile terminal using user privacy data protection method |
| CN103839014A (en) * | 2014-03-19 | 2014-06-04 | 深圳市亿道信息技术有限公司 | Self-destruction circuit of tablet personal computer storage device |
| CN104134024A (en) * | 2014-07-24 | 2014-11-05 | 广东欧珀移动通信有限公司 | Mobile terminal privacy protection method and system |
-
2016
- 2016-01-05 CN CN201610010095.4A patent/CN105657169B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100296371B1 (en) * | 1998-12-31 | 2001-08-07 | 최기주 | Computer having security device |
| CN102880560A (en) * | 2011-07-11 | 2013-01-16 | 三星电子（中国）研发中心 | User privacy data protection method and mobile terminal using user privacy data protection method |
| CN103839014A (en) * | 2014-03-19 | 2014-06-04 | 深圳市亿道信息技术有限公司 | Self-destruction circuit of tablet personal computer storage device |
| CN104134024A (en) * | 2014-07-24 | 2014-11-05 | 广东欧珀移动通信有限公司 | Mobile terminal privacy protection method and system |
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| CN105657169A (en) | 2016-06-08 |
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Address after: 523860 No. 18, Wu Sha Beach Road, Changan Town, Dongguan, Guangdong Applicant after: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS Corp.,Ltd. Address before: 523860 No. 18, Wu Sha Beach Road, Changan Town, Dongguan, Guangdong Applicant before: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS Corp.,Ltd. |
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Granted publication date: 20190219 |