CN113721788A - Handwriting input positioning system - Google Patents
Handwriting input positioning system Download PDFInfo
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- CN113721788A CN113721788A CN202111015039.7A CN202111015039A CN113721788A CN 113721788 A CN113721788 A CN 113721788A CN 202111015039 A CN202111015039 A CN 202111015039A CN 113721788 A CN113721788 A CN 113721788A
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- 238000001514 detection method Methods 0.000 claims abstract description 20
- 238000012545 processing Methods 0.000 claims abstract description 20
- 238000012544 monitoring process Methods 0.000 claims abstract description 13
- 230000008054 signal transmission Effects 0.000 claims abstract description 8
- 238000012795 verification Methods 0.000 claims description 12
- 239000000284 extract Substances 0.000 claims description 2
- 241001422033 Thestylus Species 0.000 abstract description 9
- 210000003811 finger Anatomy 0.000 description 8
- 230000009471 action Effects 0.000 description 5
- 238000012790 confirmation Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000004020 conductor Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 210000003813 thumb Anatomy 0.000 description 1
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/033—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor
- G06F3/0354—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor with detection of 2D relative movements between the device, or an operating part thereof, and a plane or surface, e.g. 2D mice, trackballs, pens or pucks
- G06F3/03545—Pens or stylus
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/30—Authentication, i.e. establishing the identity or authorisation of security principals
- G06F21/31—User authentication
- G06F21/32—User authentication using biometric data, e.g. fingerprints, iris scans or voiceprints
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0412—Digitisers structurally integrated in a display
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0416—Control or interface arrangements specially adapted for digitisers
- G06F3/04162—Control or interface arrangements specially adapted for digitisers for exchanging data with external devices, e.g. smart pens, via the digitiser sensing hardware
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0416—Control or interface arrangements specially adapted for digitisers
- G06F3/0418—Control or interface arrangements specially adapted for digitisers for error correction or compensation, e.g. based on parallax, calibration or alignment
- G06F3/04186—Touch location disambiguation
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- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Human Computer Interaction (AREA)
- Computer Security & Cryptography (AREA)
- Computer Hardware Design (AREA)
- Software Systems (AREA)
- Collating Specific Patterns (AREA)
- User Interface Of Digital Computer (AREA)
Abstract
The embodiment of the invention relates to a handwriting input positioning system which comprises a state judgment module, an authentication module, a controller, an indication detection module, an indication receiving and processing module, a noise monitoring module and a signal interruption module, wherein the state judgment module is used for judging whether a touch screen is in a locked state; the authentication module is used for verifying the validity of the stylus for indicating operation and generating a judgment signal; the controller generates a control instruction according to the judgment signal; the indication detection module is used for detecting indication operation of the touch pen on the touch screen to generate an indication signal; the indication receiving and processing module is used for receiving an indication signal and generating a display operation signal according to the indication signal; the noise monitoring module is used for detecting the time when the display device generates noise; the signal interruption module is used for cutting off signal transmission between the indication detection module and the indication receiving processing module when the display device generates noise.
Description
Technical Field
The invention relates to the technical field of input equipment, in particular to a handwriting input positioning system.
Background
With the gradual improvement of the technology level, the flat input device with the touch panel is widely applied to the daily life and work of people. For example, a tablet personal computer or a computer peripheral device is an input system using touch control, and is required to be equipped with a touch panel, which is a combined electronic component of a touch sensor and a display device such as a liquid crystal display, and a user can perform various operation inputs by touch operation with a finger or the like. When a more detailed operation input is required, a stylus pen as a dedicated position indicator is often used, in which the stylus pen is contact-moved on a sensor surface, a circuit in the touch screen surface detects the position of the stylus pen at certain time intervals, and supplies coordinate values reflecting the detected position of the stylus pen at each time interval.
However, in such an input method, a resonant circuit is generally provided in the stylus pen, and the pointing position is detected by electromagnetic induction with the flat panel during use, but since it is necessary to provide a sensor board constituting the flat panel on the back surface of the display device, it is necessary to flow a certain degree of current to the loop coil constituting the sensor board, the device structure is complicated, and the coordinate position pointed by the stylus pen cannot be accurately detected due to the influence of noise generated from the display device, which occurs mainly immediately after the position detection device is activated, before the operation of the phase control circuit becomes stable. That is, in such an input device which is integrated with a display device and is transparent, since the resistance value of the conductive material constituting the electrode is high and the display device itself generates strong noise, it is difficult to stably determine the coordinate position of the stylus pen.
Meanwhile, with the continuous enhancement of the privacy consciousness of people, people pay more and more attention to the secret protection problem of personal electronic equipment, the password input of the input device or the secret protection form of fingerprint identification are single, and the password input or the fingerprint input is required no matter the touch pen input or the hand touch input is carried out, when a user inputs by using the touch pen, the unlocking process is troublesome, the time is long, and the using effect is poor.
Disclosure of Invention
The embodiment of the invention provides a handwriting input positioning system which is not influenced by noise generated by a display device, has high precision in detecting the indication position of a touch pen, is added with a decryption mode of the touch pen and has better encryption property.
The invention provides a handwriting input positioning system, which comprises a state judgment module, an authentication module, a controller, an indication detection module, an indication receiving and processing module, a noise monitoring module and a signal interruption module, wherein the state judgment module is used for judging whether a user is in a handwriting input state or not;
the state judging module is used for judging whether the touch screen is in a locked state;
the authentication module is connected with the state judgment module and used for verifying the validity of a stylus for indicating operation and generating a judgment signal;
the controller is connected with the authentication module, receives the judgment signal sent by the authentication module and generates a control instruction according to the judgment signal;
the indication detection module is connected with the controller and used for detecting the indication operation of the touch pen on the touch screen based on the control instruction and generating an indication signal;
the indication receiving and processing module is connected with the controller and used for receiving an indication signal and generating a display operation signal according to the indication signal;
the noise monitoring module is connected with the controller and used for detecting the time when the display device generates noise;
the signal interruption module is connected with the controller and used for cutting off signal transmission between the indication detection module and the indication receiving processing module when the display device generates noise.
Preferably, the handwriting input positioning system further comprises a fingerprint identification module, and the fingerprint identification module is connected with the controller and is used for receiving fingerprint information input by a user and judging the validity of the fingerprint information.
Further preferably, the fingerprint identification module includes a fingerprint processor, a fingerprint identifier and a fingerprint memory, the fingerprint processor respectively with the fingerprint identifier with fingerprint memory electric connection, the fingerprint processor extracts preset fingerprint information in the fingerprint memory and fingerprint information obtained in the fingerprint identifier are compared, thereby judging the validity of the fingerprint information.
Preferably, the handwriting input positioning system further comprises a secret setting module, and the secret setting module is connected with the controller and used for carrying out encryption setting on the touch screen.
Further preferably, the encryption module comprises an encryption module and a verification module;
the encryption module is used for generating a preset password according to the digital information;
and the verification module is used for verifying whether the password set by the user for the first time is the same as the password set by the user for the second time.
Preferably, the encryption module further comprises a transcoding module; the transcoding module is used for converting non-digital information in the password input by the user into digital information.
Preferably, the handwriting input positioning system further comprises a storage module, configured to store the preset password.
According to the handwriting input positioning system provided by the embodiment of the invention, on one hand, the noise generated by the display device is monitored in real time by adopting the noise monitoring module, and the signal transmission between the indication detection module and the indication receiving processing module when the display device generates the noise is avoided by the signal interruption module, so that the influence of the noise generated by the display device can be avoided, and the precision of detecting the indication position of the touch pen is high; on the other hand, the indication action of the initial contact of the touch pen is set, the touch pen is legalized through the authentication module according to the indication action of the initial contact, or the associated information is established between the input device and the touch pen, namely when the touch pen is input, the touch pen is judged to be legal firstly, fingerprint identification or password input decryption is carried out when the touch pen is illegal, a decryption mode of the touch pen is added, the unlocking mode is simple, the decryption time of the touch pen is shortened, and the using effect is better.
Drawings
Fig. 1 is a block diagram of a handwriting input positioning system according to an embodiment of the present invention.
Detailed Description
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
The handwriting input positioning system provided by the embodiment of the invention can be free from the influence of noise generated by a display device, has high precision in detecting the indication position of the touch pen, is simple in unlocking mode due to the addition of the decryption mode of the touch pen, shortens the decryption time of the touch pen, and has a better using effect.
Fig. 1 is a block diagram of a handwriting input positioning system according to an embodiment of the present invention. In conjunction with FIG. 1:
the handwriting input positioning system provided by the embodiment of the invention specifically comprises: the system comprises a controller 1, an authentication module 2, a state judgment module 3, an indication detection module 4, a signal interruption module 5, an indication receiving processing module 6, a noise monitoring module 7, a fingerprint identification module 8, a secret setting module 9, a display device (not shown in the figure) and a storage module 13.
Specifically, the state determination module 3 is configured to determine whether the touch screen is in a locked state; the authentication module 2 is connected with the state judgment module 3 and used for verifying the validity of a stylus for indicating operation and generating a judgment signal; the controller 1 is connected with the authentication module 2, receives the judgment signal sent by the authentication module 2, and generates a control instruction according to the judgment signal; the indication detection module 4 is connected with the controller 1 and is used for detecting the indication operation of the touch pen on the touch screen based on the control instruction and generating an indication signal; the indication receiving processing module 6 is connected with the controller 1 and used for receiving the indication signal and generating a display operation signal according to the indication signal; the noise monitoring module 7 is connected with the controller 1 and used for detecting the time when the display device generates noise; the signal interruption module 5 is connected to the controller 1 and is configured to cut off signal transmission between the indication detection module 4 and the indication reception processing module 6 when noise is generated in the display device.
In addition, the fingerprint identification module 8 is connected to the controller 1, and is configured to receive fingerprint information input by a user, and determine validity of the fingerprint information. Fingerprint identification module 8 includes fingerprint processor, fingerprint identification ware and fingerprint memory, fingerprint processor respectively with fingerprint identification ware and fingerprint memory electric connection, fingerprint processor draws fingerprint information of predetermineeing in the fingerprint memory and compares with the fingerprint information that acquires in the fingerprint identification ware to judge fingerprint information's legitimacy.
Fingerprint information is deposited in fingerprint memory in advance through fingerprint identification ware to fingerprint identification module 8, and fingerprint processor calls the fingerprint information in the fingerprint memory and matches with the unblock password of touch-control screen, generates matching information.
As a preferred embodiment, the fingerprint information only includes finger information of the entered fingerprint, for example, fingerprint information of a middle finger of the left hand is acquired as a decryption password, when the fingerprint is decrypted, only fingerprint unlocking of the middle finger of the left hand is required to be entered, and a plurality of different fingerprint information can be acquired as decryption passwords, so that the fingerprint information is convenient for a user to use.
As another preferred embodiment, the fingerprint information includes finger information of entering a fingerprint, confirmation times information when entering a fingerprint, sequence information of entering a fingerprint by each finger, and the like, for example, the unlocking fingerprint is information of entering three fingers including a right-hand thumb fingerprint, the confirmation times are 2 times, the entering sequence is 1, a right-hand middle-finger fingerprint, the confirmation times are 1 time, the entering sequence is 2, a right-hand small-finger fingerprint, the confirmation times are 3 times, and the entering sequence is 3. When the fingerprint is unlocked, the fingerprint information is sequentially input according to the input sequence for decryption, and the security is higher.
The secret setting module 9 is connected with the controller 1 and is used for carrying out encryption setting on the touch screen, and preferably, the secret setting module 9 comprises a transcoding module 10, an encryption module 11 and a verification module 12. The transcoding module 10 is used for converting non-digital information in the password input by the user into digital information; the encryption module 11 is used for generating a preset password according to the digital information; the verification module 12 is used for verifying whether the password set by the user for the first time is the same as the password set by the user for the second time.
The storage module 13 is used for storing preset passwords.
The simple connection relationship of the handwriting input positioning system and the functions of each module provided by the embodiment of the invention are introduced, and the specific connection relationship between each module in the handwriting input positioning system and the overall working principle are introduced below.
The input end of the controller 1 is respectively and electrically connected with the input ends of the authentication module 2, the state judgment module 3, the indication receiving and processing module 6, the noise monitoring module 7, the secret setting module 9, the display device and the storage module 13, and the output end of the controller 1 is respectively and electrically connected with the input ends of the state judgment module 3, the indication detection module 4, the signal interruption module 5, the noise monitoring module 7, the fingerprint identification module 8, the secret setting module 9, the display device and the storage module 13; the input end of the authentication module 2 is electrically connected with the input ends of the state judgment module 3 and the fingerprint identification module 8 respectively; the output end of the indication detection module 4 is electrically connected with the input end of the signal interruption module 5, and the output end of the signal interruption module 5 is electrically connected with the input end of the indication receiving processing module 6; the input end of the transcoding module 10 is electrically connected with the output end of the controller 1, the output end of the transcoding module 10 is electrically connected with the input end of the encryption module 11, the output end of the encryption module 11 is electrically connected with the input end of the verification module 12, and the output end of the verification module 12 is electrically connected with the input end of the controller 1.
Before using the input device, firstly, the input device is encrypted by the encryption module 9, specifically, a user inputs password information on a preset password input interface displayed by the display device and sends the password information input by the user to the controller 1, the controller 1 analyzes the password information and sends the password information to the transcoding module 10, the transcoding module 10 converts non-digital information in the password information into digital information and sends the digital information to the encryption module 11, the encryption module 11 generates a preset password according to the information sent by the transcoding module 10, after the user inputs the password information on the preset password input interface, the display device displays a password input interface again and sends the password information input by the user for the second time to the controller 1, the transcoding module 10 converts the non-digital information in the password information input by the second time into digital information, and password authentication information is generated through the encryption module 11, the encryption module 11 sends both the preset password and the password authentication information to the verification module 12, the verification module 12 verifies whether the preset password is matched with the password authentication information, if so, the password setting is successful, otherwise, the password setting is failed, and the password setting failure information is displayed through the display device to remind a user. Meanwhile, in order to perform decryption input in a fingerprint identification mode and a stylus authentication mode, the user needs to store authentication information for verifying the fingerprint and the stylus in the authentication module 2 and the storage module 13 for subsequent judgment processing.
When the finger touch mode is adopted for indicating operation and the input device is in a non-unlocking state, a user can acquire a user fingerprint through the fingerprint identification module 8 and send the acquired fingerprint information to the authentication module 2, the authentication module 2 judges whether the acquired fingerprint information is matched with a verification fingerprint, and if the acquired fingerprint information is matched with the verification fingerprint, unlocking is carried out to enable the input device to be in an unlocking state; if not, an authentication failure signal is sent, and the controller 1 controls the password unlocking. When a touch pen is used for indicating operation, the state of the current input device is judged through the state judgment module 3, and if the current input device is in an unlocking state, the indicating operation is directly input; if the current touch control pen is in the unlocking state, the validity of the currently used touch control pen or the validity of the initial touch action is authenticated through the authentication module 2, if the current touch control pen is legal, unlocking is carried out, and if the current touch control pen is not in the unlocking state, a decryption failure prompt is carried out.
When the input device is in an unlocking state for normal indication operation input, the controller 1 controls the indication detection module 4 to detect indication operation information of the stylus, meanwhile, the controller 1 controls the noise monitoring module 7 to monitor noise generation conditions of the display device in real time, if noise is generated, the controller 1 controls the signal interruption module 5 to interrupt signal transmission between the indication detection module 4 and the indication receiving processing module 6, and when no noise exists, the controller 1 controls the signal interruption module 5 to switch on signal transmission between the indication detection module 4 and the indication receiving processing module 6, so that the indication receiving processing module 6 sends the display information to the controller 1, thereby reducing influence of noise and more accurately detecting an indication position.
According to the handwriting input positioning system provided by the embodiment of the invention, on one hand, the noise generated by the display device is monitored in real time by adopting the noise monitoring module, and the signal transmission between the indication detection module and the indication receiving processing module when the display device generates the noise is avoided by the signal interruption module, so that the influence of the noise generated by the display device can be avoided, and the precision of detecting the indication position of the touch pen is high; on the other hand, the indication action of the initial contact of the touch pen is set, the touch pen is legalized through the authentication module according to the indication action of the initial contact, or the associated information is established between the input device and the touch pen, namely when the touch pen is input, the touch pen is judged to be legal firstly, fingerprint identification or password input decryption is carried out when the touch pen is illegal, a decryption mode of the touch pen is added, the unlocking mode is simple, the decryption time of the touch pen is shortened, and the using effect is better.
Those of skill would further appreciate that the various illustrative components and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both, and that the various illustrative components and steps have been described above generally in terms of their functionality in order to clearly illustrate this interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
The steps of a method or algorithm described in connection with the embodiments disclosed herein may be embodied in hardware, a software module executed by a processor, or a combination of the two. A software module may reside in Random Access Memory (RAM), memory, Read Only Memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are merely exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (7)
1. A handwriting input positioning system is characterized by comprising a state judgment module, an authentication module, a controller, an indication detection module, an indication receiving and processing module, a noise monitoring module and a signal interruption module;
the state judging module is used for judging whether the touch screen is in a locked state;
the authentication module is connected with the state judgment module and used for verifying the validity of a stylus for indicating operation and generating a judgment signal;
the controller is connected with the authentication module, receives the judgment signal sent by the authentication module and generates a control instruction according to the judgment signal;
the indication detection module is connected with the controller and used for detecting the indication operation of the touch pen on the touch screen based on the control instruction and generating an indication signal;
the indication receiving and processing module is connected with the controller and used for receiving an indication signal and generating a display operation signal according to the indication signal;
the noise monitoring module is connected with the controller and used for detecting the time when the display device generates noise;
the signal interruption module is connected with the controller and used for cutting off signal transmission between the indication detection module and the indication receiving processing module when the display device generates noise.
2. The handwriting input positioning system of claim 1, further comprising a fingerprint recognition module, said fingerprint recognition module being connected to said controller for receiving user input fingerprint information and determining validity of said fingerprint information.
3. The handwriting input positioning system according to claim 2, wherein said fingerprint identification module comprises a fingerprint processor, a fingerprint identifier and a fingerprint memory, said fingerprint processor is electrically connected to said fingerprint identifier and said fingerprint memory respectively, said fingerprint processor extracts the preset fingerprint information in said fingerprint memory and compares said preset fingerprint information with said fingerprint information obtained from said fingerprint identifier, thereby determining the validity of said fingerprint information.
4. The handwriting input positioning system according to claim 1, further comprising a cryptographic module, said cryptographic module being connected to said controller for encrypting said touch screen.
5. The handwriting input positioning system of claim 4, wherein said cryptographic module comprises a cryptographic module and a verification module;
the encryption module is used for generating a preset password according to the digital information;
and the verification module is used for verifying whether the password set by the user for the first time is the same as the password set by the user for the second time.
6. The handwriting input positioning system of claim 1, wherein said cryptographic module further comprises a transcoding module; the transcoding module is used for converting non-digital information in the password input by the user into digital information.
7. The handwriting input positioning system of claim 1, further comprising a storage module for storing said preset password.
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|---|---|---|---|
| CN202111015039.7A CN113721788A (en) | 2021-08-31 | 2021-08-31 | Handwriting input positioning system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111015039.7A CN113721788A (en) | 2021-08-31 | 2021-08-31 | Handwriting input positioning system |
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| CN113721788A true CN113721788A (en) | 2021-11-30 |
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| CN105279478A (en) * | 2015-01-31 | 2016-01-27 | 谭荣兵 | Fingerprint sequential composition password authentification system |
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| CN110245486A (en) * | 2018-03-09 | 2019-09-17 | 和硕联合科技股份有限公司 | Electronic device and control method |
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2021
- 2021-08-31 CN CN202111015039.7A patent/CN113721788A/en active Pending
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| CN106104437A (en) * | 2014-03-17 | 2016-11-09 | 株式会社和冠 | Position detecting device |
| CN105279478A (en) * | 2015-01-31 | 2016-01-27 | 谭荣兵 | Fingerprint sequential composition password authentification system |
| CN107272921A (en) * | 2016-01-28 | 2017-10-20 | 乐金显示有限公司 | Active touch control pen includes its touch-sensing system and touch-sensing method |
| CN108369617A (en) * | 2016-02-02 | 2018-08-03 | 微软技术许可有限责任公司 | Carry out certification user via the data being stored in stylus equipment |
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| CN110245486A (en) * | 2018-03-09 | 2019-09-17 | 和硕联合科技股份有限公司 | Electronic device and control method |
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