CN107886083A - The method, apparatus and readable storage medium storing program for executing of fingerprint module calibration - Google Patents
The method, apparatus and readable storage medium storing program for executing of fingerprint module calibration Download PDFInfo
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- CN107886083A CN107886083A CN201711207945.0A CN201711207945A CN107886083A CN 107886083 A CN107886083 A CN 107886083A CN 201711207945 A CN201711207945 A CN 201711207945A CN 107886083 A CN107886083 A CN 107886083A
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- calibration information
- fingerprint module
- reference calibration
- module
- terminal
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
- G06V40/12—Fingerprints or palmprints
- G06V40/13—Sensors therefor
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/50—Maintenance of biometric data or enrolment thereof
Abstract
Present disclose provides the method, apparatus and readable storage medium storing program for executing of a kind of fingerprint module calibration, belong to electronic technology field.Methods described includes：When the fingerprint module to terminal is calibrated, and the reference calibration information of the fingerprint module is not present in the memory headroom of the terminal, the store path of hardware memory space corresponding to the fingerprint module is determined；According to the store path, the reference calibration information is read from the hardware memory space, the reference calibration information is the reference calibration information backup of the memory headroom；According to the reference calibration information, the fingerprint module is calibrated.Terminal can also be by being calibrated based on the reference calibration information backuped in hardware memory space when reference calibration information is not present in memory headroom, and the reliability of the hardware memory space data storage is higher, so as to improve the reliability of fingerprint module calibration.
Description
Technical field
This disclosure relates to electronic technology field, more particularly to the method, apparatus and readable storage of a kind of calibration of fingerprint module
Medium.
Background technology
With the development of electronic technology, the fingerprint module for possessing fingerprint identification function is mounted with many terminals, works as user
When needing to unlock terminal screen or carry out payment transaction, the fingerprint module can be touched by finger, to replace unlocking terminal
The process of password is inputted when screen or payment transaction.However, the fingerprint module is during production and use, often by
The interference of other accessories or environmental factor into terminal, so as to reduce the accuracy of fingerprint recognition.For example, production process
In, during by the fingerprint module and glass gluing, there may be bubble between fingerprint module and glass, so as to introduce bubble
The interference brought.It is thus typically necessary to fingerprint module is calibrated.
In correlation technique, the calibration file of the fingerprint module is typically stored when terminal is dispatched from the factory in the memory headroom of terminal,
When terminal is opened, terminal obtains the calibration file from memory headroom, by the calibration information in the calibration file to fingerprint
Module is calibrated.
The content of the invention
The disclosure provides a kind of method, apparatus and readable storage medium storing program for executing of the calibration of fingerprint module, can overcome correlation technique
Present in fingerprint module calibration poor reliability the problem of, the technical scheme is as follows：
According to the first aspect of the embodiment of the present disclosure, there is provided a kind of method of fingerprint module calibration, methods described include：
When the fingerprint module to terminal is calibrated, and the base of the fingerprint module is not present in the memory headroom of the terminal
During quasi- calibration information, the store path of hardware memory space corresponding to the fingerprint module is determined；
According to the store path, the reference calibration information, the benchmark school are read from the hardware memory space
Calibration information is the reference calibration information backup of the memory headroom；
According to the reference calibration information, the fingerprint module is calibrated.
When the fingerprint module to terminal is calibrated, and the benchmark school of the fingerprint module is not present in the memory headroom of the terminal
During calibration information, terminal can determine the store path of hardware memory space corresponding to the fingerprint module, according to the store path, from
The reference calibration information is read in the hardware memory space, wherein, the reference calibration information is the reference calibration of the memory headroom
Information backup, so as to according to the reference calibration information, be calibrated to the fingerprint module.Reference calibration is not present in memory headroom
During information, the reference calibration information that terminal is also based on backuping in hardware memory space is calibrated, and the hardware store is empty
Between data storage reliability it is higher, so as to improve fingerprint module calibration reliability.
In a kind of possible implementation, methods described also includes：
When the first calibration file is not present in the memory headroom, determine the memory headroom of the terminal in the absence of described
The reference calibration information of fingerprint module, the file that first calibration file obtains for the encapsulation reference calibration information；Or
When the first calibration file in the memory headroom be present, but failure is decapsulated to first calibration file, really
The reference calibration information of the fingerprint module is not present in the memory headroom of the fixed terminal.
In the embodiment of the present disclosure, due to the unreliability of terminal memory headroom, cause first calibration file easy to be lost or
Impaired, terminal can detect first calibration file and whether there is, and in the presence of further decapsulated, detecting whether can
Success decapsulates, and when first calibration file or decapsulation failure is not present in memory headroom, terminal determines memory headroom
In the absence of the reference calibration information, determined so as to improve terminal in memory headroom with the presence or absence of the accurate of reference calibration information
Property.
It is described according to the store path in a kind of possible implementation, institute is read from the hardware memory space
Reference calibration information is stated, including：
According to the store path, the second calibration file, the second calibration text are read from the hardware memory space
The file that part obtains for the encapsulation reference calibration information；
Second calibration file is decapsulated, obtains the reference calibration information.
In the embodiment of the present disclosure, the reference calibration information can be stored in hardware memory space in the form of a file by terminal
In, terminal can read the reference calibration information based on second calibration file, further ensure hardware memory space storage
The security reliability of the reference calibration information.
In a kind of possible implementation, methods described also includes：
When detect the reference calibration information be present in the memory headroom when, the reference calibration information back-up is arrived
In the hardware memory space, the store path of the reference calibration information is recorded.
In the embodiment of the present disclosure, when reference calibration information in memory headroom be present, terminal can believe the reference calibration
Breath is backuped in hardware memory space, the dual memory reference calibration information, is further ensured terminal and is read the reference calibration
The realizability of information.
In a kind of possible implementation, it is described by the reference calibration information back-up into the hardware memory space,
Including：
It is the second calibration file by the reference calibration Information encapsulation, second calibration file is backed up in the hardware
In memory space.
In the embodiment of the present disclosure, the reference calibration Information encapsulation can also be that the second calibration file is preserved by terminal,
So as to further ensure the security of reference calibration information storage.
It is described according to the reference calibration information in a kind of possible implementation, the fingerprint module is calibrated
Afterwards, methods described also includes：
The unloaded image of the fingerprint module is gathered, the unloaded image is figure when not loaded on the fingerprint module
Picture；
According to the pixel value of each pixel in the unloaded image, the reference calibration in the hardware memory space is corrected
Information.
In the embodiment of the present disclosure, the unloaded image that terminal is also based on collection is corrected to the reference calibration information,
So as to reduce interference of the environmental factor to the reference calibration information, the accuracy of the reference calibration information is improved.
In a kind of possible implementation, before the unloaded image of the collection fingerprint module, methods described is also wrapped
Include：
When detecting that user's finger touches the fingerprint module, fingerprint recognition is carried out to the fingerprint of the user's finger；
When detecting that the user's finger leaves the fingerprint module, the zero load of the collection fingerprint module is performed
The step of image.
In the embodiment of the present disclosure, image that terminal gathers when finger after fingerprint recognition can just have been left into fingerprint module as
Unloaded image, so as to avoid other influences of the environmental factor that may be present to trimming process, further increase and corrected
The accuracy of journey.
It is described according to the reference calibration information in a kind of possible implementation, the fingerprint module is calibrated,
Including：
The hardware parameter value included according to the reference calibration information, by the currency of the hardware parameter of the fingerprint module
It is configured to the hardware parameter value.
In the embodiment of the present disclosure, hardware parameter value that terminal is included based on the reference calibration information, to the fingerprint module
Hardware parameter is configured, and improves the efficiency for calibrating the fingerprint module.
In a kind of possible implementation, methods described also includes：
When the memory headroom of the terminal has the reference calibration information of the fingerprint module, from the memory headroom
The reference calibration information is read, performs described according to the reference calibration information, the step calibrated to the fingerprint module
Suddenly.
In the embodiment of the present disclosure, when memory headroom has reference calibration information, terminal is directly based upon the base of the memory headroom
Quasi- calibration information carries out the calibration of fingerprint module, without obtaining the reference calibration information of hardware memory space again, so as to improve
The efficiency of fingerprint module calibration.
According to the second aspect of the embodiment of the present disclosure, there is provided a kind of device of fingerprint module calibration, described device include：
Determining module, for being calibrated when the fingerprint module to terminal, and institute is not present in the memory headroom of the terminal
When stating the reference calibration information of fingerprint module, the store path of hardware memory space corresponding to the fingerprint module is determined；
Read module, for according to the store path, the reference calibration letter to be read from the hardware memory space
Breath, the reference calibration information are the reference calibration information backup of the memory headroom；
Calibration module, for according to the reference calibration information, being calibrated to the fingerprint module.
In a kind of possible implementation, the determining module, it is additionally operable to that the first school is not present in the memory headroom
During quasi- file, determine that the reference calibration information of the fingerprint module, first calibration is not present in the memory headroom of the terminal
The file that file obtains for the encapsulation reference calibration information；Or when the first calibration file in the memory headroom being present, but
When decapsulating failure to first calibration file, determine that the benchmark of the fingerprint module is not present in the memory headroom of the terminal
Calibration information.
In a kind of possible implementation, the read module, it is additionally operable to, according to the store path, deposit from the hardware
The second calibration file, the file that second calibration file obtains for the encapsulation reference calibration information are read in storage space；
The read module, it is additionally operable to decapsulate second calibration file, obtains the reference calibration information.
In a kind of possible implementation, described device also includes：
Backup module, for when detect the reference calibration information be present in the memory headroom when, by the benchmark
Calibration information is backuped in the hardware memory space, records the store path of the reference calibration information.
In a kind of possible implementation, the backup module, it is second to be additionally operable to the reference calibration Information encapsulation
Calibration file, by second calibration file backup in the hardware memory space.
In a kind of possible implementation, described device also includes：
Acquisition module, for gathering the unloaded image of the fingerprint module, the unloaded image is on the fingerprint module
Image when not loading；
Correction module, for the pixel value according to each pixel in the unloaded image, it is empty to correct the hardware store
Between in reference calibration information.
In a kind of possible implementation, the acquisition module, it is additionally operable to detect that user's finger touches the fingerprint
During module, fingerprint recognition is carried out to the fingerprint of the user's finger；When detecting that the user's finger leaves the fingerprint module
When, gather the unloaded image of the fingerprint module.
In a kind of possible implementation, the calibration module, it is additionally operable to be included according to the reference calibration information hard
Part parameter value, the currency of the hardware parameter of the fingerprint module is configured to the hardware parameter value.
In a kind of possible implementation, the read module, it is additionally operable to when described in the memory headroom presence of the terminal
During the reference calibration information of fingerprint module, the reference calibration information is read from the memory headroom, according to the benchmark school
Calibration information, the fingerprint module is calibrated.
According to the third aspect of the embodiment of the present disclosure, there is provided a kind of device of fingerprint module calibration, including：
Processor；
For storing the memory of processor-executable instruction；
Wherein, the processor is configured as：
When the fingerprint module to terminal is calibrated, and the base of the fingerprint module is not present in the memory headroom of the terminal
During quasi- calibration information, the store path of hardware memory space corresponding to the fingerprint module is determined；
According to the store path, the reference calibration information, the benchmark school are read from the hardware memory space
Calibration information is the reference calibration information backup of the memory headroom；
According to the reference calibration information, the fingerprint module is calibrated.
According to the fourth aspect of the embodiment of the present disclosure, there is provided a kind of computer-readable recording medium, it is described computer-readable
Computer program is stored with storage medium, finger as described in relation to the first aspect is realized when the computer program is executed by processor
The method of line module calibration.
The technical scheme provided by this disclosed embodiment can include the following benefits：
In the embodiment of the present disclosure, when the fingerprint module to terminal is calibrated, and be not present should for the memory headroom of the terminal
During the reference calibration information of fingerprint module, terminal can determine the store path of hardware memory space corresponding to the fingerprint module,
According to the store path, the reference calibration information is read from the hardware memory space, wherein, the reference calibration information is interior for this
The reference calibration information backup in space is deposited, so as to according to the reference calibration information, be calibrated to the fingerprint module.Internal memory is empty
Between when reference calibration information is not present, the reference calibration information that terminal is also based on backuping in hardware memory space carries out school
Standard, the reliability of the hardware memory space data storage is higher, so as to improve the reliability of fingerprint module calibration.
It should be appreciated that the general description and following detailed description of the above are only exemplary and explanatory, not
The disclosure can be limited.
Brief description of the drawings
Accompanying drawing herein is merged in specification and forms the part of this specification, shows the implementation for meeting the disclosure
Example, and be used to together with specification to explain the principle of the disclosure.
Fig. 1 is a kind of method flow diagram of fingerprint module calibration according to an exemplary embodiment；
Fig. 2 is a kind of method flow diagram of fingerprint module calibration according to an exemplary embodiment；
Fig. 3 is a kind of device block diagram of fingerprint module calibration according to an exemplary embodiment；
Fig. 4 is a kind of device block diagram of fingerprint module calibration according to an exemplary embodiment；
Fig. 5 is a kind of device block diagram of fingerprint module calibration according to an exemplary embodiment；
Fig. 6 is a kind of device block diagram of fingerprint module calibration according to an exemplary embodiment.
Embodiment
To make the purpose, technical scheme and advantage of the disclosure clearer, below in conjunction with accompanying drawing to disclosure embodiment party
Formula is described in further detail.
Here exemplary embodiment will be illustrated in detail, its example is illustrated in the accompanying drawings.Following description is related to
During accompanying drawing, unless otherwise indicated, the same numbers in different accompanying drawings represent same or analogous key element.Following exemplary embodiment
Described in embodiment do not represent all embodiments consistent with the disclosure.On the contrary, they be only with as appended
The example of the consistent apparatus and method of some aspects be described in detail in claims, the disclosure.
Fig. 1 is a kind of method flow diagram of fingerprint module calibration according to an exemplary embodiment, and this method can be with
With in the terminal, as shown in figure 1, this method comprises the following steps.
In a step 101, when the fingerprint module to terminal is calibrated, and the fingerprint is not present in the memory headroom of the terminal
During the reference calibration information of module, the store path of hardware memory space corresponding to the fingerprint module is determined；
In a step 102, according to the store path, the reference calibration information, the base are read from the hardware memory space
Quasi- calibration information is the reference calibration information backup of the memory headroom；
In step 103, according to the reference calibration information, the fingerprint module is calibrated.
In a kind of possible implementation, this method also includes：
When the first calibration file is not present in the memory headroom, determine that the fingerprint mould is not present in the memory headroom of the terminal
The reference calibration information of group, first calibration file are to encapsulate the file that the reference calibration information obtains；Or
When the first calibration file in the memory headroom be present, but failure is decapsulated to first calibration file, it is determined that should
The reference calibration information of the fingerprint module is not present in the memory headroom of terminal.
In a kind of possible implementation, this reads the benchmark school according to the store path from the hardware memory space
Calibration information, including：
According to the store path, the second calibration file is read from the hardware memory space, second calibration file is envelope
Fill the file that the reference calibration information obtains；
Second calibration file is decapsulated, obtains the reference calibration information.
In a kind of possible implementation, this method also includes：
When detect the reference calibration information be present in the memory headroom when, by the reference calibration information back-up to the hardware
In memory space, the store path of the reference calibration information is recorded.
In a kind of possible implementation, this by the reference calibration information back-up into the hardware memory space, including：
It is the second calibration file by the reference calibration Information encapsulation, second calibration file backup is empty in the hardware store
Between in.
In a kind of possible implementation, this, should after being calibrated to the fingerprint module according to the reference calibration information
Method also includes：
The unloaded image of the fingerprint module is gathered, the unloaded image is image when not loaded on the fingerprint module；
According to the pixel value of each pixel in the unloaded image, the reference calibration letter in the hardware memory space is corrected
Breath.
In a kind of possible implementation, before the unloaded image of the collection fingerprint module, this method also includes：
When detecting that user's finger touches the fingerprint module, fingerprint recognition is carried out to the fingerprint of the user's finger；
When detecting that the user's finger leaves the fingerprint module, the step of the unloaded image of the collection fingerprint module is performed
Suddenly.
In a kind of possible implementation, this is calibrated to the fingerprint module according to the reference calibration information, including：
The hardware parameter value included according to the reference calibration information, the currency of the hardware parameter of the fingerprint module is configured
For the hardware parameter value.
In a kind of possible implementation, this method also includes：
When the memory headroom of the terminal has the reference calibration information of the fingerprint module, being read from the memory headroom should
Reference calibration information, this is performed according to the reference calibration information, the step of calibration to the fingerprint module.
In the embodiment of the present disclosure, when the fingerprint module to terminal is calibrated, and be not present should for the memory headroom of the terminal
During the reference calibration information of fingerprint module, terminal can determine the store path of hardware memory space corresponding to the fingerprint module,
According to the store path, the reference calibration information is read from the hardware memory space, wherein, the reference calibration information is interior for this
The reference calibration information backup in space is deposited, so as to according to the reference calibration information, be calibrated to the fingerprint module.Internal memory is empty
Between when reference calibration information is not present, the reference calibration information that terminal is also based on backuping in hardware memory space carries out school
Standard, the reliability of the hardware memory space data storage is higher, so as to improve the reliability of fingerprint module calibration.
Above-mentioned all optional technical schemes, any combination can be used to form the alternative embodiment of the disclosure, herein no longer
Repeat one by one.
Fig. 2 is a kind of method flow diagram of fingerprint module calibration according to an exemplary embodiment, and this method can be with
With in the terminal, as shown in Fig. 2 this method comprises the following steps.
In step 201, when the fingerprint module to terminal is calibrated, whether there is in terminal detection memory headroom should
The reference calibration information of fingerprint module.
In the embodiment of the present disclosure, fingerprint module is installed in terminal, terminal can gather user's finger by the fingerprint module
Fingerprint image, and by the fingerprint image carry out fingerprint recognition so that user, which need not input password, can also realize terminal
The unblock of screen, complete the processes such as payment transaction.However, due to the fingerprint module may by other accessories in terminal or
The interference of environmental factor so that the accuracy of fingerprint recognition declines, and therefore, terminal needs to carry out school to the fingerprint module often
Standard, to reduce the interference that external factor is brought.
In the embodiment of the present disclosure, when terminal detects calibration command, it is determined that being calibrated to the fingerprint module.The calibration
Instruction can be that terminal is voluntarily triggered or triggered according to user's request, and the process can be：When terminal starts, terminal
Triggering generates the calibration command of the fingerprint module, it is determined that being calibrated to the fingerprint module；Or when terminal detects the fingerprint
When the calibration knob of module is triggered, terminal generates the calibration command of the fingerprint module, it is determined that being calibrated to the fingerprint module；
Or when terminal detects default calibration actions, terminal generates the calibration command of the fingerprint module, it is determined that to the fingerprint module
Calibrated.Wherein, the default calibration actions can need to set and change according to user, and the embodiment of the present disclosure is not made to have to this
Body limits.For example, the default calibration actions can be to click on the action of the terminal screen where the fingerprint module twice in succession, or
Person, the action for the terminal that rolls etc..
Wherein, when terminal determines to calibrate the fingerprint module, terminal can pass through the first calibration text in internal memory
Reference calibration information in part is calibrated, however, because the reliability of memory headroom is poor, causes in the memory headroom
One calibration file is easily damaged or is deleted by mistake by user, so as to be calibrated by the reference calibration information in memory headroom.
And in the embodiment of the present disclosure, terminal can also be by the reference calibration information back-up into the hardware memory space of terminal, by hard
Reference calibration information in part memory space is calibrated.Therefore, terminal, which can be detected first, whether there is the base in the memory headroom
Quasi- calibration information, the process can be：When first calibration file in the memory headroom of the terminal being present, and to first calibration
When file is decapsulated successfully, i.e., when terminal can successfully obtain the reference calibration information in the first calibration file, determine the terminal
Memory headroom exist the fingerprint module reference calibration information, first calibration file for encapsulate the reference calibration information obtain
File.When the first calibration file is not present in the memory headroom, determine that the fingerprint mould is not present in the memory headroom of the terminal
The reference calibration information of group；Or when the first calibration file in the memory headroom being present, but first calibration file is decapsulated
During failure, determine that the reference calibration information of the fingerprint module is not present in the memory headroom of the terminal.
Wherein, when the first calibration file in the memory headroom be present, because terminal is typically entered to first calibration file
Row encryption, the reference calibration information are encapsulated in the first calibration file, therefore, terminal-pair first calibration file deblocking
The step of dress can be：Terminal reads the first calibration file from the memory headroom, obtains the decruption key of first calibration file,
By the decruption key, first calibration file is decrypted, and the first calibration file after decryption is decapsulated, is obtained
To the reference calibration information in first calibration file.
Wherein, the reference calibration information includes the hardware parameter value of the predetermined hardware parameter of the fingerprint module, and this is default hard
Part parameter can be ADC shifter (analog-to-digital conversion shift value), pixel gaining (pixel acquired value) etc..
When the memory headroom of the terminal has the reference calibration information of the fingerprint module, terminal is read from the memory headroom
The reference calibration information is taken, terminal can be based on the calibration of the reference calibration information realization to the fingerprint module, i.e. terminal can be straight
Connect and perform step 204-205.
In a kind of possible design, when terminal, which detects, the reference calibration information be present in the memory headroom, terminal
By the reference calibration information back-up into the hardware memory space, and record the store path of the reference calibration information.Wherein, eventually
End can think the reference calibration information back-up to the step in the hardware memory space：Terminal is directly by the reference calibration information
It is stored in the hardware memory space, i.e. the reference calibration information is naked in the presence of in the hardware memory space；Or terminal will
The reference calibration Information encapsulation is the second calibration file, by second calibration file backup in the hardware memory space.
Wherein, terminal directly by the reference calibration information it is naked exist the hardware memory space in, so as to save the base
Memory space shared by quasi- calibration information, improve the utilization rate of hardware memory space in terminal.Or when terminal is by the benchmark
When calibration information is stored in the form of a file, terminal can also obtain the encryption key of second calibration file, utilize this
Encryption key, by predetermined encryption algorithm, the second calibration file after encapsulation is encrypted, by the second school after encryption
Quasi- file is stored in the hardware memory space.Wherein, the predetermined encryption algorithm can need to set and change according to user, this
Open embodiment is not specifically limited to this.For example, the predetermined encryption algorithm can be DEA (Data Encryption
Algorithm, DEA), MD5 (Message Digest Algorithm 5, Message Digest 5) etc..
In a kind of possible design, when terminal by the reference calibration information back-up into the hardware memory space when, eventually
End, which can also first be detected, whether there is the reference calibration information in the hardware memory space, should when existing in the hardware memory space
During reference calibration information, terminal detect reference calibration information in the hardware memory space whether with the benchmark school in memory headroom
Calibration information is identical, if identical, is no longer backed up；If it is not the same, terminal determines the benchmark school of the hardware memory space
The hardware parameter value differed in the reference calibration information of calibration information and memory headroom, the reference calibration of hardware memory space is believed
The hardware parameter value that this in breath differs is changed to hardware parameter value corresponding to the reference calibration information of memory headroom.Or should
The reference calibration information is not present in hardware memory space, terminal is directly empty to the hardware store by the reference calibration information back-up
Between in.
Meanwhile record depositing for the reference calibration information corresponding to two kinds of storage methods of said reference calibration information, terminal
Store up path the step of can be：Terminal directly regard the position where the hardware memory space for storing the reference calibration information as this
The store path of reference calibration information, store the store path；Or terminal will store the hardware store of second calibration file
Store path of the position as the reference calibration information where space, stores the store path, so as to which subsequent terminal can be straight
Connect and the reference calibration information is obtained according to the store path.
It should be noted that the first calibration file is typically stored in the main memory of terminal by terminal, the main memory is general
It is that the grid capacitance leaned in MOS circuits carrys out recall info, because the electric charge on electric capacity can leak, it is necessary to regularly give supplement,
So as to which memory headroom is fragile, also, user with real time inspection and can handle the file in the memory headroom, cause first school
Quasi- file is easily deleted by mistake, poor so as to the reliability of memory headroom data storage.The hardware memory space refers to the hardware of terminal
In memory space, the hardware memory space can be fingerprint module MCU (Micro Control Unit, micro-control unit)
In designated memory cell, due to MCU be by the CPU (Central Process Unit, central processing unit) of computer,
Memory (internal memory), Timer (counter) etc. are incorporated into the computer of the chip-scale formed on one chip, MCU data
Storage performance is preferable, is not easy to be damaged, and will not be deleted by mistake by user, reliability is also preferable.Therefore, hardware memory space is compared to interior
It is more stable, reliable to deposit space, the reference calibration information is stored in the hardware memory space, substantially increases reference calibration
The reliability of information storage, so as to improve the reliability of hardware module calibration.
In step 202, when the reference calibration information of the fingerprint module is not present in the memory headroom of terminal, terminal determines
The store path of hardware memory space corresponding to the fingerprint module.
In this step, terminal can prestore the mark of designated memory cell in the MCU being connected with the fingerprint module,
When reference calibration information is not present in the memory headroom of the terminal, for terminal according to the mark of the designated memory cell, searching should
Position where designated memory cell, using the position where the designated memory cell as hardware store corresponding to the fingerprint module
The store path in space.
In a kind of possible design, terminal can also prestore the position where designated memory cell in the MCU, when
When reference calibration information being not present in the memory headroom of the terminal, terminal directly obtains the position where the designated memory cell,
Store path using the position where the designated memory cell as hardware memory space corresponding to fingerprint module.
In step 203, terminal reads the reference calibration information according to the store path from the hardware memory space,
The reference calibration information is the reference calibration information backup of the memory headroom, performs step 205.
In the embodiment of the present disclosure, the two ways of the reference calibration information is stored in hardware memory space based on terminal,
In this step, terminal reads the method for the reference calibration information correspondingly including following two.
First way, when terminal directly by this reference calibration information is naked exist in hardware memory space when, this step can
Think：Terminal is searched hardware memory space corresponding to the store path, directly corresponded to from the store path according to the store path
Hardware memory space in read reference calibration information.
The second way, when terminal is stored the reference calibration information in the form of a file, this step can be：
Terminal reads the second calibration file, second calibration file should for encapsulation according to the store path from the hardware memory space
The file that reference calibration information obtains；Terminal-pair second calibration file is decapsulated, and obtains the reference calibration information.
In this step, second calibration file can also be the file after encryption, and therefore, terminal can also be first to the second school
Quasi- file is decrypted, then is decapsulated.The process can be：Terminal obtains the decruption key of second calibration file, leads to
Decipherment algorithm corresponding to predetermined encryption algorithm when crossing encryption, second calibration file is decrypted, second after being decrypted
Calibration file, then second calibration file is decapsulated, obtain the reference calibration information.
In step 204, when the reference calibration information in the memory headroom be present, terminal is read from the memory headroom
The reference calibration information.
In step 205, terminal is calibrated according to the reference calibration information to the fingerprint module.
In this step, the reference calibration information is the hardware parameter value of the predetermined hardware parameter of the fingerprint module, and terminal can
To be calibrated based on the hardware parameter value, therefore, this step can be：The hardware that terminal includes according to the reference calibration information
Parameter value, the currency of the hardware parameter of the fingerprint module is configured to the hardware parameter value.Terminal-pair line module carries out success
After calibration, the fingerprint identification function of terminal is just opened, so that the fingerprint module is carried out based on the hardware parameter value after calibration
The collection of fingerprint image, improve the accuracy of fingerprint recognition.
It should be noted that when the reference calibration information source is in hardware memory space, terminal can also be hard by this
Reference calibration information back-up in part memory space is into memory headroom, and two based on reference calibration information in hardware memory space
The different storage forms of kind, the backup procedure can be：When terminal, directly by this, reference calibration information is naked hardware memory space be present
When middle, the reference calibration Information encapsulation is the first calibration file by terminal, and first calibration file is backed up in the memory headroom
In.When terminal is stored the reference calibration information in the form of a file, terminal directly using second calibration file as
First calibration file is stored into memory headroom.Wherein, the reference calibration Information encapsulation is the first calibration file by terminal, by this
First calibration file backs up the specific implementation in the memory headroom, and with terminal, the reference calibration Information encapsulation is the second school
Quasi- file, implementation of second calibration file backup in the hardware memory space is consistent, no longer repeat one by one herein.
In the embodiment of the present disclosure, during the use of the fingerprint module, the fingerprint module it is also possible to by environment because
The interference of element so that the hardware performance of the fingerprint module changes, so as to influence the accuracy of fingerprint recognition.Therefore, terminal
The fingerprint module can also be corrected, by following steps 206 to reduce the interference of environmental factor.
In step 206, terminal gathers the unloaded image of the fingerprint module, according to each pixel in the unloaded image
Pixel value, correct the reference calibration information in the hardware memory space.
In the embodiment of the present disclosure, the unloaded image is image when not loaded on the fingerprint module, in order to improve school
Positive accuracy, excludes the influence of other extraneous factors that may be present, and terminal can just leave user's finger the fingerprint mould
During group, the image of fingerprint module collection is as the unloaded image.Therefore, before this step, terminal can also first detect user
Whether finger touches the fingerprint module, when detecting that user's finger touches the fingerprint module, the finger of the terminal-pair user's finger
Line carries out fingerprint recognition；When detecting that the user's finger leaves the fingerprint module, terminal, which just performs, gathers the fingerprint module
The step of unloaded image.Wherein, terminal can judge whether user's finger leaves the fingerprint by the load state of fingerprint module
Module, then the step of terminal gathers the unloaded image of the fingerprint module can be：When terminal detects that the load of fingerprint module subtracts
Small when being zero, terminal determines that user's finger leaves the fingerprint module；Terminal sends acquisition instructions, the fingerprint module to fingerprint module
The acquisition instructions of receiving terminal, the unloaded image according to corresponding to the acquisition instructions gather current finger print module at terminal screen,
And the unloaded image of collection is sent to terminal, terminal receives the unloaded image.
It should be noted that when user's finger touches fingerprint module, the image of fingerprint module collection carries hand for one
Refer to the fingerprint image of fingerprint.When user's finger leaves fingerprint module, the unloaded image of fingerprint module collection is a blank sheet
Picture, when not containing any point, line or figure in the blank image, show that the current each hardware parameter value of fingerprint module is accurate
Really, the fingerprint image of fingerprint module collection is consistent with the actual fingerprint of user's finger, so as to which terminal can be based on the fingerprint image
As more accurate progress fingerprint recognition.However, when the unloaded image is not a blank image, terminal need to be to the fingerprint mould
The hardware parameter value of group is corrected, so as to obtain accurate fingerprint image in fingerprint recognition.
Terminal is according to the pixel value of each pixel in the unloaded image, the reference calibration letter in correction hardware memory space
The step of breath can be：Terminal judges whether the pixel value of each pixel of the unloaded image is specified pixel value, when this
The pixel that pixel value is not specified pixel value in unloaded image be present, terminal is not existed based on this for the pixel of specified pixel value
Position in the unloaded image, the hardware parameter value included to the reference calibration information in hardware memory space are modified, with
Fingerprint module is set to collect accurate fingerprint image based on revised hardware parameter value.The specified pixel value is any not contain
The pixel value of pixel in the unloaded image of point, line or figure.
In this step, when the first calibration file in memory headroom be present, terminal can also be first to the base in memory headroom
Quasi- calibration information is corrected, then the reference calibration information in hardware memory space is corrected；Or when needing to fingerprint
When module is calibrated, while terminal carries out the calibration of fingerprint module by first calibration file, based on the first calibration text
Part is corrected to the reference calibration information in the hardware memory space；Or terminal can also be simultaneously to the first calibration text
Reference calibration information in part and hardware memory space is corrected.When the first calibration file is not present in memory headroom, eventually
End can be corrected to the reference calibration information in the hardware memory space, and be by the reference calibration Information encapsulation after correction
First calibration file, first calibration file is backuped in memory headroom.
In the embodiment of the present disclosure, when the fingerprint module to terminal is calibrated, and be not present should for the memory headroom of the terminal
During the reference calibration information of fingerprint module, terminal can determine the store path of hardware memory space corresponding to the fingerprint module,
According to the store path, the reference calibration information is read from the hardware memory space, wherein, the reference calibration information is interior for this
The reference calibration information backup in space is deposited, so as to according to the reference calibration information, be calibrated to the fingerprint module.Internal memory is empty
Between when reference calibration information is not present, the reference calibration information that terminal is also based on backuping in hardware memory space carries out school
Standard, the reliability of the hardware memory space data storage is higher, so as to improve the reliability of fingerprint module calibration.
Fig. 3 is a kind of device block diagram of fingerprint module calibration according to an exemplary embodiment.Reference picture 3, the dress
Put including determining module 301, read module 302 and calibration module 303.
The determining module 301, it is configurable for working as and the fingerprint module of terminal is calibrated, and the internal memory of the terminal is empty
Between when the reference calibration information of the fingerprint module is not present, determine the storage road of hardware memory space corresponding to the fingerprint module
Footpath；
The read module 302, it is configured as, according to the store path, the reference calibration being read from the hardware memory space
Information, the reference calibration information are the reference calibration information backup of the memory headroom；
The calibration module 303, it is configured as, according to the reference calibration information, calibrating the fingerprint module.
In a kind of possible implementation, the determining module 301, it is additionally configured to work as in the memory headroom in the absence of first
During calibration file, determine that the reference calibration information of the fingerprint module, first calibration file is not present in the memory headroom of the terminal
To encapsulate the file that the reference calibration information obtains；Or when the first calibration file in the memory headroom being present, but to this first
During calibration file decapsulation failure, determine that the reference calibration information of the fingerprint module is not present in the memory headroom of the terminal.
In a kind of possible implementation, the read module 302, it is additionally configured to according to the store path, from the hardware
The second calibration file is read in memory space, second calibration file is to encapsulate the file that the reference calibration information obtains；
The read module 302, it is additionally configured to decapsulate second calibration file, obtains reference calibration letter
Breath.
In a kind of possible implementation, as shown in figure 4, the device also includes backup module 304.
The backup module 304, it is configured as detecting in the memory headroom when reference calibration information be present, by the base
Quasi- calibration information is backuped in the hardware memory space, records the store path of the reference calibration information.
In a kind of possible implementation, the backup module 304, it is the to be additionally configured to the reference calibration Information encapsulation
Two calibration files, by second calibration file backup in the hardware memory space.
In a kind of possible implementation, as shown in figure 5, the device also includes acquisition module 305 and correction module 306.
The acquisition module 305, it is configured as gathering the unloaded image of the fingerprint module, the unloaded image is the fingerprint module
On image when not loading；
The correction module 306, it is configured as the pixel value according to each pixel in the unloaded image, correction hardware storage
Reference calibration information in space.
In a kind of possible implementation, the acquisition module 305, it is additionally configured to detect that user's finger touches this and referred to
During line module, fingerprint recognition is carried out to the fingerprint of the user's finger；When detecting that the user's finger leaves the fingerprint module, adopt
Collect the unloaded image of the fingerprint module.
In a kind of possible implementation, the calibration module 303, it is additionally configured to what is included according to the reference calibration information
Hardware parameter value, the currency of the hardware parameter of the fingerprint module is configured to the hardware parameter value.
In a kind of possible implementation, the read module 302, it is additionally configured to be somebody's turn to do when the memory headroom of the terminal is present
During the reference calibration information of fingerprint module, the reference calibration information is read from the memory headroom, according to the reference calibration information,
The fingerprint module is calibrated.
In the embodiment of the present disclosure, when the fingerprint module to terminal is calibrated, and be not present should for the memory headroom of the terminal
During the reference calibration information of fingerprint module, terminal can determine the store path of hardware memory space corresponding to the fingerprint module,
According to the store path, the reference calibration information is read from the hardware memory space, wherein, the reference calibration information is interior for this
The reference calibration information backup in space is deposited, so as to according to the reference calibration information, be calibrated to the fingerprint module.Internal memory is empty
Between when reference calibration information is not present, the reference calibration information that terminal is also based on backuping in hardware memory space carries out school
Standard, the reliability of the hardware memory space data storage is higher, so as to improve the reliability of fingerprint module calibration.
Above-mentioned all optional technical schemes, any combination can be used to form the alternative embodiment of the disclosure, herein no longer
Repeat one by one.
It should be noted that：Above-described embodiment provide fingerprint module calibration device when fingerprint module is calibrated, only with
The division progress of above-mentioned each functional module, can be as needed and by above-mentioned function distribution by not for example, in practical application
Same functional module is completed, i.e., the internal structure of device is divided into different functional modules, to complete whole described above
Or partial function.In addition, the device and the method for fingerprint module calibration of the fingerprint module calibration that above-described embodiment provides are implemented
Example belongs to same design, and its specific implementation process refers to embodiment of the method, repeats no more here.
Fig. 6 is a kind of device block diagram of fingerprint module calibration according to an exemplary embodiment.For example, device 600
Can be mobile phone, computer, digital broadcast terminal, messaging devices, game console, tablet device, Medical Devices,
Body-building equipment, personal digital assistant etc..
Reference picture 6, device 600 can include following one or more assemblies：Processing component 602, memory 604, power supply
Component 606, multimedia groupware 608, audio-frequency assembly 610, the interface 66 of input/output (I/O), sensor cluster 614, Yi Jitong
Believe component 616.
The integrated operation of the usual control device 600 of processing component 602, such as communicated with display, call, data, phase
The operation that machine operates and record operation is associated.Processing component 602 can refer to including one or more processors 620 to perform
Order, to complete all or part of step of above-mentioned method.In addition, processing component 602 can include one or more modules, just
Interaction between processing component 602 and other assemblies.For example, processing component 602 can include multi-media module, it is more to facilitate
Interaction between media component 608 and processing component 602.
Memory 604 is configured as storing various types of data to support the operation in device 600.These data are shown
Example includes the instruction of any application program or method for being operated on device 600, contact data, telephone book data, disappears
Breath, picture, video etc..Memory 604 can be by any kind of volatibility or non-volatile memory device or their group
Close and realize, as static RAM (SRAM), Electrically Erasable Read Only Memory (EEPROM) are erasable to compile
Journey read-only storage (EPROM), programmable read only memory (PROM), read-only storage (ROM), magnetic memory, flash
Device, disk or CD.
Power supply module 606 provides electric power for the various assemblies of device 600.Power supply module 606 can include power management system
System, one or more power supplys, and other components associated with generating, managing and distributing electric power for device 600.
Multimedia groupware 608 is included in the screen of one output interface of offer between described device 600 and user.One
In a little embodiments, screen can include liquid crystal display (LCD) and touch panel (TP).If screen includes touch panel, screen
Curtain may be implemented as touch-screen, to receive the input signal from user.Touch panel includes one or more touch sensings
Device is with the gesture on sensing touch, slip and touch panel.The touch sensor can not only sensing touch or sliding action
Border, but also detect and touched or the related duration and pressure of slide with described.In certain embodiments, more matchmakers
Body component 608 includes a front camera and/or rear camera.When device 600 is in operator scheme, such as screening-mode or
During video mode, front camera and/or rear camera can receive outside multi-medium data.Each front camera and
Rear camera can be a fixed optical lens system or have focusing and optical zoom capabilities.
Audio-frequency assembly 610 is configured as output and/or input audio signal.For example, audio-frequency assembly 610 includes a Mike
Wind (MIC), when device 600 is in operator scheme, during such as call model, logging mode and speech recognition mode, microphone by with
It is set to reception external audio signal.The audio signal received can be further stored in memory 604 or via communication set
Part 616 is sent.In certain embodiments, audio-frequency assembly 610 also includes a loudspeaker, for exports audio signal.
I/O interfaces 612 provide interface between processing component 602 and peripheral interface module, and above-mentioned peripheral interface module can
To be keyboard, click wheel, button etc..These buttons may include but be not limited to：Home button, volume button, start button and lock
Determine button.
Sensor cluster 614 includes one or more sensors, and the state for providing various aspects for device 600 is commented
Estimate.For example, sensor cluster 614 can detect opening/closed mode of device 600, and the relative positioning of component, for example, it is described
Component is the display and keypad of device 600, and sensor cluster 614 can be with 600 1 components of detection means 600 or device
Position change, the existence or non-existence that user contacts with device 600, the orientation of device 600 or acceleration/deceleration and device 600
Temperature change.Sensor cluster 614 can include proximity transducer, be configured to detect in no any physical contact
The presence of neighbouring object.Sensor cluster 614 can also include optical sensor, such as CMOS or ccd image sensor, for into
As being used in application.In certain embodiments, the sensor cluster 614 can also include acceleration transducer, gyro sensors
Device, Magnetic Sensor, pressure sensor or temperature sensor.
Communication component 616 is configured to facilitate the communication of wired or wireless way between device 600 and other equipment.Device
600 can access the wireless network based on communication standard, such as WiFi, 2G or 3G, or combinations thereof.In an exemplary implementation
In example, communication component 616 receives broadcast singal or broadcast related information from external broadcasting management system via broadcast channel.
In one exemplary embodiment, the communication component 616 also includes near-field communication (NFC) module, to promote junction service.Example
Such as, in NFC module radio frequency identification (RFID) technology can be based on, Infrared Data Association (IrDA) technology, ultra wide band (UWB) technology,
Bluetooth (BT) technology and other technologies are realized.
In the exemplary embodiment, device 600 can be believed by one or more application specific integrated circuits (ASIC), numeral
Number processor (DSP), digital signal processing appts (DSPD), PLD (PLD), field programmable gate array
(FPGA), controller, microcontroller, microprocessor or other electronic components are realized, for performing above-mentioned fingerprint module calibration
Method.
In the exemplary embodiment, a kind of non-transitorycomputer readable storage medium including instructing, example are additionally provided
Such as include the memory 604 of instruction, above-mentioned instruction can be performed to complete the above method by the processor 620 of device 600.For example,
The non-transitorycomputer readable storage medium can be ROM, random access memory (RAM), CD-ROM, tape, floppy disk
With optical data storage devices etc..
Those skilled in the art will readily occur to the disclosure its after considering specification and putting into practice invention disclosed herein
Its embodiment.The application is intended to any modification, purposes or the adaptations of the disclosure, these modifications, purposes or
Person's adaptations follow the general principle of the disclosure and including the undocumented common knowledges in the art of the disclosure
Or conventional techniques.Description and embodiments are considered only as exemplary, and the true scope of the disclosure and spirit are by following
Claim is pointed out.
It should be appreciated that the precision architecture that the disclosure is not limited to be described above and is shown in the drawings, and
And various modifications and changes can be being carried out without departing from the scope.The scope of the present disclosure is only limited by appended claim.
Claims (20)
- A kind of 1. method of fingerprint module calibration, it is characterised in that methods described includes：When the fingerprint module to terminal is calibrated, and the benchmark school of the fingerprint module is not present in the memory headroom of the terminal During calibration information, the store path of hardware memory space corresponding to the fingerprint module is determined；According to the store path, the reference calibration information, the reference calibration letter are read from the hardware memory space Cease the reference calibration information backup for the memory headroom；According to the reference calibration information, the fingerprint module is calibrated.
- 2. according to the method for claim 1, it is characterised in that methods described also includes：When the first calibration file is not present in the memory headroom, determine that the fingerprint is not present in the memory headroom of the terminal The reference calibration information of module, the file that first calibration file obtains for the encapsulation reference calibration information；OrWhen the first calibration file in the memory headroom be present, but failure is decapsulated to first calibration file, institute is determined The reference calibration information of the fingerprint module is not present in the memory headroom for stating terminal.
- 3. according to the method for claim 1, it is characterised in that it is described according to the store path, from the hardware store The reference calibration information is read in space, including：According to the store path, the second calibration file is read from the hardware memory space, second calibration file is Encapsulate the file that the reference calibration information obtains；Second calibration file is decapsulated, obtains the reference calibration information.
- 4. according to any described methods of claim 1-3, it is characterised in that methods described also includes：When detect the reference calibration information be present in the memory headroom when, by the reference calibration information back-up to described In hardware memory space, the store path of the reference calibration information is recorded.
- 5. according to the method for claim 4, it is characterised in that described by the reference calibration information back-up to the hardware In memory space, including：It is the second calibration file by the reference calibration Information encapsulation, second calibration file is backed up in the hardware store In space.
- 6. according to any described methods of claim 1-3, it is characterised in that it is described according to the reference calibration information, to institute State after fingerprint module calibrated, methods described also includes：The unloaded image of the fingerprint module is gathered, the unloaded image is image when not loaded on the fingerprint module；According to the pixel value of each pixel in the unloaded image, the reference calibration letter in the hardware memory space is corrected Breath.
- 7. according to the method for claim 6, it is characterised in that before the unloaded image of the collection fingerprint module, Methods described also includes：When detecting that user's finger touches the fingerprint module, fingerprint recognition is carried out to the fingerprint of the user's finger；When detecting that the user's finger leaves the fingerprint module, the unloaded image of the collection fingerprint module is performed The step of.
- 8. according to the method for claim 1, it is characterised in that it is described according to the reference calibration information, to the fingerprint Module is calibrated, including：The hardware parameter value included according to the reference calibration information, the currency of the hardware parameter of the fingerprint module is configured For the hardware parameter value.
- 9. according to the method for claim 1, it is characterised in that methods described also includes：When the memory headroom of the terminal has the reference calibration information of the fingerprint module, read from the memory headroom The reference calibration information, perform it is described according to the reference calibration information, the step of calibration to the fingerprint module.
- 10. a kind of device of fingerprint module calibration, it is characterised in that described device includes：Determining module, for being calibrated when the fingerprint module to terminal, and the finger is not present in the memory headroom of the terminal During the reference calibration information of line module, the store path of hardware memory space corresponding to the fingerprint module is determined；Read module, for according to the store path, the reference calibration information, institute to be read from the hardware memory space State the reference calibration information backup that reference calibration information is the memory headroom；Calibration module, for according to the reference calibration information, being calibrated to the fingerprint module.
- 11. device according to claim 10, it is characterised in thatThe determining module, it is additionally operable to, when the first calibration file is not present in the memory headroom, determine the interior of the terminal The reference calibration information that the fingerprint module is not present in space is deposited, first calibration file is the encapsulation reference calibration information Obtained file；Or when the first calibration file in the memory headroom being present, but first calibration file is decapsulated and lost When losing, determine that the reference calibration information of the fingerprint module is not present in the memory headroom of the terminal.
- 12. device according to claim 10, it is characterised in thatThe read module, it is additionally operable to, according to the store path, the second calibration file be read from the hardware memory space, The file that second calibration file obtains for the encapsulation reference calibration information；The read module, it is additionally operable to decapsulate second calibration file, obtains the reference calibration information.
- 13. according to any described devices of claim 10-12, it is characterised in that described device also includes：Backup module, for when detect the reference calibration information be present in the memory headroom when, by the reference calibration Information back-up records the store path of the reference calibration information into the hardware memory space.
- 14. device according to claim 13, it is characterised in thatThe backup module, it is the second calibration file to be additionally operable to the reference calibration Information encapsulation, by the described second calibration text Part is backed up in the hardware memory space.
- 15. according to any described devices of claim 10-12, it is characterised in that described device also includes：Acquisition module, for gathering the unloaded image of the fingerprint module, the unloaded image is not have on the fingerprint module Image during load；Correction module, for the pixel value according to each pixel in the unloaded image, correct in the hardware memory space Reference calibration information.
- 16. device according to claim 15, it is characterised in thatThe acquisition module, it is additionally operable to when detecting that user's finger touches the fingerprint module, to the finger of the user's finger Line carries out fingerprint recognition；When detecting that the user's finger leaves the fingerprint module, the zero load of the fingerprint module is gathered Image.
- 17. device according to claim 10, it is characterised in thatThe calibration module, the hardware parameter value included according to the reference calibration information is additionally operable to, by the fingerprint module The currency of hardware parameter is configured to the hardware parameter value.
- 18. device according to claim 10, it is characterised in thatThe read module, it is additionally operable to when the reference calibration information that the memory headroom of the terminal has the fingerprint module, The reference calibration information is read from the memory headroom, according to the reference calibration information, the fingerprint module is carried out Calibration.
- A kind of 19. device of fingerprint module calibration, it is characterised in that including：Processor；For storing the memory of processor-executable instruction；Wherein, the processor is configured as：When the fingerprint module to terminal is calibrated, and the benchmark school of the fingerprint module is not present in the memory headroom of the terminal During calibration information, the store path of hardware memory space corresponding to the fingerprint module is determined；According to the store path, the reference calibration information, the reference calibration letter are read from the hardware memory space Cease the reference calibration information backup for the memory headroom；According to the reference calibration information, the fingerprint module is calibrated.
- 20. a kind of computer-readable recording medium, computer program is stored with the computer-readable recording medium, its feature It is, the side of the fingerprint module calibration as described in claim 1-9 is any is realized when the computer program is executed by processor Method.
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Application publication date: 20180406 |