CN110968206A - Method and equipment for pressing extended function key of electromagnetic handwriting pen - Google Patents
Method and equipment for pressing extended function key of electromagnetic handwriting pen Download PDFInfo
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- CN110968206A CN110968206A CN201911153196.7A CN201911153196A CN110968206A CN 110968206 A CN110968206 A CN 110968206A CN 201911153196 A CN201911153196 A CN 201911153196A CN 110968206 A CN110968206 A CN 110968206A
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- 238000000034 method Methods 0.000 title claims abstract description 38
- 230000006870 function Effects 0.000 claims abstract description 53
- 230000005540 biological transmission Effects 0.000 claims abstract description 15
- 238000005516 engineering process Methods 0.000 claims abstract description 14
- 230000015654 memory Effects 0.000 claims description 18
- 238000004590 computer program Methods 0.000 claims description 10
- 230000005674 electromagnetic induction Effects 0.000 claims description 8
- 230000010365 information processing Effects 0.000 claims description 3
- 230000009977 dual effect Effects 0.000 claims 2
- 230000005291 magnetic effect Effects 0.000 description 7
- 238000004891 communication Methods 0.000 description 4
- 230000006698 induction Effects 0.000 description 4
- 230000003993 interaction Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 241001422033 Thestylus Species 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000005059 dormancy Effects 0.000 description 2
- 239000004973 liquid crystal related substance Substances 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 238000013459 approach Methods 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
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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
- G06F3/038—Control and interface arrangements therefor, e.g. drivers or device-embedded control circuitry
- G06F3/0383—Signal control means within the pointing device
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/80—Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- User Interface Of Digital Computer (AREA)
Abstract
The invention aims to provide a method and equipment for expanding function keys of an electromagnetic stylus pen, which are mainly based on an electromagnetic stylus pen scheme and are matched with an advanced low-power-consumption Bluetooth BLE soc solution to realize the functions of various self-defined shortcut function keys, and perform data transmission with android intelligent equipment through BLE, so that various self-defined operations of the expanded function keys of the electromagnetic stylus pen are realized on the android intelligent equipment, and the trouble of slow operation and refreshing of similar eink ink screen products is solved. According to the invention, based on the Bluetooth BLE technology, the low-power consumption BLE soc is utilized to realize the shortcut key operation on products of electronic paper readers and the like, and the experience and efficiency of the products of the electronic paper readers are improved. The invention can be applied to products such as high-precision handwriting book readers and the like, and various electromagnetic handwriting pen schemes for expanding shortcut keys are realized for personal consumer electronics.
Description
Technical Field
The invention relates to the field of computers, in particular to a method and equipment for expanding function keys of an electromagnetic stylus.
Background
The traditional electronic paper reader product has fewer man-machine interaction approaches on the product morphology because the screen refreshing is slower.
Disclosure of Invention
The invention aims to provide a method and equipment for pressing keys for expanding functions of an electromagnetic stylus.
According to one aspect of the invention, a method for expanding function keys of an electromagnetic stylus pen is provided, and the method comprises the following steps:
the low-power consumption Bluetooth BLE soc is installed on the electromagnetic stylus;
data transmission is carried out between the electromagnetic handwriting pen and the android intelligent device through the low-power-consumption Bluetooth BLE soc, so that the android intelligent device carries out various key value self-defined operations of the extended function keys of the electromagnetic handwriting pen.
Further, in the above method, the electromagnetic stylus pen applies Wacom electromagnetic induction technology.
Further, in the above method, after the android smart device performs various custom operations on the extended function button of the electromagnetic stylus pen, the method further includes:
and the electromagnetic handwriting pen sends the key values of the extended function keys to the android intelligent device through the low-power-consumption Bluetooth BLE soc.
Further, in the above method, the android smart device is a platform dedicated to a full-anzhi B300 reader based on the android 8.1 version, and carries the U.S. blosson dual-mode bluetooth solution BCM 43436P.
According to another aspect of the present invention, there is also provided an extended function key device of an electromagnetic stylus pen, wherein the device includes:
an electromagnetic stylus;
android smart devices;
the Bluetooth low energy (BLE soc) is installed on the electromagnetic stylus pen, wherein data transmission is carried out between the electromagnetic stylus pen and the android intelligent device through the Bluetooth low energy (BLE soc), so that the android intelligent device carries out various key value self-defined operations of extended function keys of the electromagnetic stylus pen.
Further, in the above device, the electromagnetic stylus pen applies Wacom electromagnetic induction technology.
Further, in the above device, the electromagnetic stylus pen sends the key values of the extended function keys to the android smart device through the bluetooth low energy (BLE soc).
Further, in the above devices, the android smart device is a platform dedicated to a full-anzhi B300 reader based on the android 8.1 version, and carries the U.S. blosson dual-mode bluetooth solution BCM 43436P.
According to another aspect of the present invention, there is also provided a computer readable medium having computer readable instructions stored thereon, the computer readable instructions being executable by a processor to implement the method of any one of the above.
According to another aspect of the present invention, there is also provided an apparatus for information processing at a network device, the apparatus comprising a memory for storing computer program instructions and a processor for executing the program instructions, wherein the computer program instructions, when executed by the processor, trigger the apparatus to perform any of the methods described above.
Compared with the prior art, this branch is mainly based on the electromagnetic type handwriting pen scheme respectively, and collocation advanced bluetooth low energy BLISoc solution realizes the function of multiple self-defined swift function button, carries out data transmission through BLE with tall and erect smart machine of ann tall and erect smart machine goes on the various custom operations of the extended function button of electromagnetic type handwriting pen have solved the operation of similar eink ink screen product and have refreshed slow puzzlement. According to the invention, based on the Bluetooth BLE technology, the low-power consumption BLE soc is utilized to realize the shortcut key operation on products of electronic paper readers and the like, and the experience and efficiency of the products of the electronic paper readers are improved. The invention can be applied to products such as high-precision handwriting book readers and the like, and various electromagnetic handwriting pen schemes for expanding shortcut keys are realized for personal consumer electronics.
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Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments made with reference to the following drawings:
fig. 1 shows a flowchart of a method for extending function keys of an electromagnetic stylus according to an embodiment of the present invention.
The same or similar reference numbers in the drawings identify the same or similar elements.
Detailed Description
The present invention is described in further detail below with reference to the attached drawing figures.
In a typical configuration of the present application, the terminal, the device serving the network, and the trusted party each include one or more processors (CPUs), input/output interfaces, network interfaces, and memory.
The memory may include forms of volatile memory in a computer readable medium, Random Access Memory (RAM) and/or non-volatile memory, such as Read Only Memory (ROM) or flash memory (flash RAM). Memory is an example of a computer-readable medium.
Computer-readable media, including both non-transitory and non-transitory, removable and non-removable media, may implement information storage by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), Read Only Memory (ROM), Electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), Digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other non-transmission medium that can be used to store information that can be accessed by a computing device. As defined herein, computer readable media does not include non-transitory computer readable media (transient media), such as modulated data signals and carrier waves.
The invention provides a method for expanding function keys of an electromagnetic stylus pen, which comprises the following steps:
step S1, installing a low-power consumption Bluetooth BLE soc on the electromagnetic stylus;
and S2, performing data transmission between the electromagnetic handwriting pen and the android intelligent device through the low-power-consumption Bluetooth BLE soc so as to perform various key value self-defining operations of the extended function keys of the electromagnetic handwriting pen on the android intelligent device.
The invention realizes the communication and control of individual keys through passive electromagnetic resonance frequency based on the existing electromagnetic handwriting pen, realizes the definition of key values of different keys by using IO of a Bluetooth BLE SOC chip, communicates with android handwriting equipment through the transmission of the Bluetooth BLE, and is adaptive to different APPs of the handwriting equipment, thereby realizing the extended function keys of page turning up and down, software startup and shutdown, erasing, quick startup and exit of the APPs, system dormancy, awakening and the like.
This mainly is based on electromagnetic type handwriting pen scheme respectively, and the advanced bluetooth low energy BLE soc solution of collocation realizes the function of multiple self-defined swift function button, carries out data transmission through BLE with tall and erect smart machine of ann and realizes tall and erect smart machine of ann goes on various custom operations of the extended function button of electromagnetic type handwriting pen have solved the operation of similar eink ink screen product and have refreshed slow puzzlement. According to the invention, based on the Bluetooth BLE technology, the low-power consumption BLE soc is utilized to realize the shortcut key operation on products of electronic paper readers and the like, and the experience and efficiency of the products of the electronic paper readers are improved. The invention can be applied to products such as high-precision handwriting book readers and the like, and various electromagnetic handwriting pen schemes for expanding shortcut keys are realized for personal consumer electronics.
The invention realizes the definition of different keys by the low-cost low-power consumption Bluetooth BLE soc, greatly avoids the defects of slow refreshing of an eink screen and inconvenient operation, solves the problems of writing and erasing of a stylus pen, and solves the pain points of few man-machine interaction paths, slow operation reaction and the like of the traditional electronic paper reader product
In an embodiment of the method for expanding the function keys of the electromagnetic stylus pen, the electromagnetic stylus pen applies a Wacom electromagnetic induction technology.
In the EMR technique of Wacom, an electromagnetic induction plate for detecting the direction of pen movement is built in a liquid crystal display panel, a plurality of annular coils are distributed in a longitudinal and transverse direction on the induction plate, the movement of the pen in the range of the magnetic field generated by the induction plate can make the resonance circuit of the pen store electric energy, and after the pen stores the energy, the control circuit stops supplying current to the loop coil and connects the loop coil to the receiving loop, at this time, the energy accumulated by the pen is transmitted back to the sensing board from the coil of the pen point through the free oscillation of the resonance loop, the control circuit firstly scans the loop coil on the sensing board to primarily detect the approximate position of the pen, then scans a plurality of loop coils around the pen to calculate the detected signal, the coordinate values, the inclination, the operating state (speed, pressure of the pen, etc.) of the pen can be calculated very accurately.
In an embodiment of the method for extended function keys of an electromagnetic stylus pen, in step S2, after the android smart device performs various custom operations on the extended function keys of the electromagnetic stylus pen, the method further includes:
and the electromagnetic handwriting pen sends the key values of the extended function keys to the android intelligent device through the low-power-consumption Bluetooth BLE soc.
The low-power consumption Bluetooth BLE soc is based on the advanced 20nm semiconductor technology, realizes ultra-low standby power consumption, and greatly ensures the battery service time of the stylus; abundant peripheral hardware PPI interface can realize 3 at most 3 x 3 the function of 9 buttons, through bluetooth BLE agreement, can initiatively send corresponding button key assignment to android intelligent device to the accuracy is discerned by android intelligent device.
In an embodiment of the extended function key method of the electromagnetic stylus pen, the android intelligent device is a platform special for a full-anzhi B300 reader based on the android 8.1 version, and carries a American blosson dual-mode Bluetooth solution BCM 43436P.
The platform is based on a full-log B300 reader special platform of the android 8.1 version, a United states communication dual-mode Bluetooth solution BCM43436P is mounted, connection and data (command) transmission with a Bluetooth BLE electromagnetic handwriting pen are achieved, a BLE key value is adapted in a customized reader APP, corresponding up-down page turning is responded, and a key erasing function is achieved in a notebook APP; the software system can be closed after a long key is pressed through a specific key value, and the special key can quickly enter a system standby mode or a system awakening mode.
The invention provides an extended function key device of an electromagnetic handwriting pen, which comprises:
an electromagnetic stylus;
android smart devices;
the Bluetooth low energy (BLE soc) is installed on the electromagnetic stylus pen, wherein data transmission is carried out between the electromagnetic stylus pen and the android intelligent device through the Bluetooth low energy (BLE soc), so that the android intelligent device carries out various key value self-defined operations of extended function keys of the electromagnetic stylus pen.
The invention realizes the communication and control of individual keys through passive electromagnetic resonance frequency based on the existing electromagnetic handwriting pen, realizes the definition of key values of different keys by using IO of a Bluetooth BLE SOC chip, communicates with android handwriting equipment through the transmission of the Bluetooth BLE, and is adaptive to different APPs of the handwriting equipment, thereby realizing the extended function keys of page turning up and down, software startup and shutdown, erasing, quick startup and exit of the APPs, system dormancy, awakening and the like.
This scheme is mainly based on the electromagnetic type handwriting pen scheme, and the advanced bluetooth low energy BLE soc solution of collocation realizes the function of multiple self-defined swift function button, carries out data transmission through BLE with tall and erect smart machine of ann and realizes tall and erect smart machine of ann goes on the various custom operations of the extended function button of electromagnetic type handwriting pen have solved the operation of similar eink ink screen product and have refreshed slow puzzlement. According to the invention, based on the Bluetooth BLE technology, the low-power consumption BLE soc is utilized to realize the shortcut key operation on products of electronic paper readers and the like, and the experience and efficiency of the products of the electronic paper readers are improved. The invention can be applied to products such as high-precision handwriting book readers and the like, and various electromagnetic handwriting pen schemes for expanding shortcut keys are realized for personal consumer electronics.
The invention realizes the definition of different keys by the low-cost low-power consumption Bluetooth BLE soc, greatly avoids the defects of slow refreshing of an eink screen and inconvenient operation, solves the problems of writing and erasing of a stylus pen, and solves the pain points of few man-machine interaction paths, slow operation reaction and the like of the traditional electronic paper reader product
In an embodiment of the extended function key device of the electromagnetic stylus pen of the present invention, the electromagnetic stylus pen applies Wacom electromagnetic induction technology.
In the EMR technique of Wacom, an electromagnetic induction plate for detecting the direction of pen movement is built in a liquid crystal display panel, a plurality of annular coils are distributed in a longitudinal and transverse direction on the induction plate, the movement of the pen in the range of the magnetic field generated by the induction plate can make the resonance circuit of the pen store electric energy, and after the pen stores the energy, the control circuit stops supplying current to the loop coil and connects the loop coil to the receiving loop, at this time, the energy accumulated by the pen is transmitted back to the sensing board from the coil of the pen point through the free oscillation of the resonance loop, the control circuit firstly scans the loop coil on the sensing board to primarily detect the approximate position of the pen, then scans a plurality of loop coils around the pen to calculate the detected signal, the coordinate values, the inclination, the operating state (speed, pressure of the pen, etc.) of the pen can be calculated very accurately.
In an embodiment of the extended function key device of the electromagnetic stylus pen, the electromagnetic stylus pen sends the key values of the extended function keys to the android intelligent device through the low-power-consumption bluetooth BLE soc.
The low-power consumption Bluetooth BLE soc is based on the advanced 20nm semiconductor technology, realizes ultra-low standby power consumption, and greatly ensures the battery service time of the stylus; abundant peripheral hardware PPI interface can realize 3 at most 3 x 3 the function of 9 buttons, through bluetooth BLE agreement, can initiatively send corresponding button key assignment to android intelligent device to the accuracy is discerned by android intelligent device.
In an embodiment of the extended function key device of the electromagnetic stylus pen, the android intelligent device is a platform special for a full-anzhi B300 reader based on the android 8.1 version, and carries a American blosson dual-mode Bluetooth solution BCM 43436P.
The platform is based on a full-log B300 reader special platform of the android 8.1 version, a United states communication dual-mode Bluetooth solution BCM43436P is mounted, connection and data (command) transmission with a Bluetooth BLE electromagnetic handwriting pen are achieved, a BLE key value is adapted in a customized reader APP, corresponding up-down page turning is responded, and a key erasing function is achieved in a notebook APP; the software system can be closed after a long key is pressed through a specific key value, and the special key can quickly enter a system standby mode or a system awakening mode.
According to another aspect of the present invention, there is also provided a computer readable medium having computer readable instructions stored thereon, the computer readable instructions being executable by a processor to implement the method of any one of the above.
According to another aspect of the present invention, there is also provided an apparatus for information processing at a network device, the apparatus comprising a memory for storing computer program instructions and a processor for executing the program instructions, wherein the computer program instructions, when executed by the processor, trigger the apparatus to perform any of the methods described above.
For details of embodiments of each device and storage medium of the present invention, reference may be made to corresponding parts of each method embodiment, and details are not described herein again.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.
It should be noted that the present invention may be implemented in software and/or in a combination of software and hardware, for example, as an Application Specific Integrated Circuit (ASIC), a general purpose computer or any other similar hardware device. In one embodiment, the software program of the present invention may be executed by a processor to implement the steps or functions described above. Also, the software programs (including associated data structures) of the present invention can be stored in a computer readable recording medium, such as RAM memory, magnetic or optical drive or diskette and the like. Further, some of the steps or functions of the present invention may be implemented in hardware, for example, as circuitry that cooperates with the processor to perform various steps or functions.
In addition, some of the present invention can be applied as a computer program product, such as computer program instructions, which when executed by a computer, can invoke or provide the method and/or technical solution according to the present invention through the operation of the computer. Program instructions which invoke the methods of the present invention may be stored on a fixed or removable recording medium and/or transmitted via a data stream on a broadcast or other signal-bearing medium and/or stored within a working memory of a computer device operating in accordance with the program instructions. An embodiment according to the invention herein comprises an apparatus comprising a memory for storing computer program instructions and a processor for executing the program instructions, wherein the computer program instructions, when executed by the processor, trigger the apparatus to perform a method and/or solution according to embodiments of the invention as described above.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned. Furthermore, it is obvious that the word "comprising" does not exclude other elements or steps, and the singular does not exclude the plural. A plurality of units or means recited in the apparatus claims may also be implemented by one unit or means in software or hardware. The terms first, second, etc. are used to denote names, but not any particular order.
Claims (10)
1. A method for expanding function keys of an electromagnetic stylus pen comprises the following steps:
the low-power consumption Bluetooth BLE soc is installed on the electromagnetic stylus;
data transmission is carried out between the electromagnetic handwriting pen and the android intelligent device through the low-power-consumption Bluetooth BLE soc, so that the android intelligent device carries out various key value self-defined operations of the extended function keys of the electromagnetic handwriting pen.
2. The method of claim 1, wherein the electromagnetic stylus applies Wacom electromagnetic induction technology.
3. The method of claim 1, wherein after the android smart device performs various custom operations of the extended function button of the electromagnetic stylus, the method further comprises:
and the electromagnetic handwriting pen sends the key values of the extended function keys to the android intelligent device through the low-power-consumption Bluetooth BLE soc.
4. The method of claim 1, wherein the android smart device is an android 8.1 version based full-lineage B300 reader specific platform hosting the U.S. blosson dual mode bluetooth solution BCM 43436P.
5. An extended function key device of an electromagnetic stylus pen, wherein the device comprises:
an electromagnetic stylus;
android smart devices;
the Bluetooth low energy (BLE soc) is installed on the electromagnetic stylus pen, wherein data transmission is carried out between the electromagnetic stylus pen and the android intelligent device through the Bluetooth low energy (BLE soc), so that the android intelligent device carries out various key value self-defined operations of extended function keys of the electromagnetic stylus pen.
6. The method of claim 5, wherein the electromagnetic stylus applies Wacom electromagnetic induction technology.
7. The method according to claim 5, wherein the electromagnetic stylus sends the key values of the extended function keys to the android smart device through the Bluetooth Low energy (BLE soc).
8. The method of claim 5, wherein the android smart device is an android 8.1 version based full-lineage B300 reader specific platform hosting the U.S. Bordetem dual mode Bluetooth solution BCM 43436P.
9. A computer readable medium having computer readable instructions stored thereon which are executable by a processor to implement the method of any one of claims 1 to 4.
10. An apparatus for information processing at a network device, the apparatus comprising a memory for storing computer program instructions and a processor for executing the program instructions, wherein the computer program instructions, when executed by the processor, trigger the apparatus to perform the method of any of claims 1 to 4.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911153196.7A CN110968206A (en) | 2019-11-21 | 2019-11-21 | Method and equipment for pressing extended function key of electromagnetic handwriting pen |
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| CN201911153196.7A CN110968206A (en) | 2019-11-21 | 2019-11-21 | Method and equipment for pressing extended function key of electromagnetic handwriting pen |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022222552A1 (en) * | 2021-04-22 | 2022-10-27 | 荣耀终端有限公司 | Stylus connection method and bluetooth system |
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Application publication date: 20200407 |