WO2021143423A1 - Stylet - Google Patents

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Publication number
WO2021143423A1
WO2021143423A1 PCT/CN2020/136336 CN2020136336W WO2021143423A1 WO 2021143423 A1 WO2021143423 A1 WO 2021143423A1 CN 2020136336 W CN2020136336 W CN 2020136336W WO 2021143423 A1 WO2021143423 A1 WO 2021143423A1
Authority
WO
WIPO (PCT)
Prior art keywords
radiator
stylus
bluetooth
electrically connected
electrode
Prior art date
Application number
PCT/CN2020/136336
Other languages
English (en)
Chinese (zh)
Inventor
陈文俊
李艳波
马宁
王克猛
郑红生
郑涛
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Publication of WO2021143423A1 publication Critical patent/WO2021143423A1/fr

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Classifications

    • 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
    • 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
    • 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
    • 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
    • G06F3/0386—Control and interface arrangements therefor, e.g. drivers or device-embedded control circuitry for light pen

Definitions

  • This application relates to the field of electronic technology, and in particular to a stylus.
  • the stylus is a relatively common input device used with electronic equipment (such as mobile phones, tablet computers, etc.), which is convenient for people's lives.
  • electronic equipment such as mobile phones, tablet computers, etc.
  • the electrodes of the stylus and the Bluetooth antenna cooperate with each other to provide users with a more realistic writing experience.
  • the Bluetooth antenna can also realize functions such as power return and air mouse control.
  • FIG. 1 An existing stylus structure is shown in Figure 1, including a pen body 12, an electrode 14 and a Bluetooth antenna 16.
  • the electrode 14 and the Bluetooth antenna 16 are of separate design.
  • the electrode 14 is arranged at the end of the pen body 12.
  • the antenna 16 can be arranged in the middle of the pen or at the end of the pen.
  • the Bluetooth antenna 16 when the stylus is in the writing mode or the air mouse mode, the Bluetooth antenna 16 will be easily held at the center of the pen or at the end of the pen.
  • the inventor found that the structure of the above-mentioned stylus has at least the following problems: on the one hand, the Bluetooth antenna will occupy the space of the stylus, compress the battery volume, and reduce the endurance of the whole machine; on the other hand, , Because the Bluetooth antenna is in the middle of the pen or at the end of the pen, it is easy to be held in actual use, resulting in increased signal transmission delay, which will affect the user experience.
  • the embodiment of the present application provides a stylus pen, in which a Bluetooth antenna is arranged at the tip of the stylus, which can not occupy the volume of the battery, and at the same time can improve the user experience.
  • the embodiment of the present application provides a stylus, including:
  • a pen tip the pen tip is arranged at one end of the main body, at least a part of the pen tip is used to contact a touch screen of an electronic device;
  • the pen tip includes a first radiator, the first radiator serves as the Bluetooth radiating part and the electrode radiating part of the stylus at the same time, the first radiator is used to send and receive Bluetooth signals, and is used to receive or send electrodes Signal.
  • the Bluetooth antenna and the electrode can share the first radiator, and the Bluetooth signal can be sent and received through the first radiator, and the first radiator can also be used to receive or Sending electrode signals, the electrode signals being used by the touch screen of the electronic device to determine the touch position of the stylus pen.
  • the radiator can be arranged at the end of the main body of the stylus, and the volume of the main body of the stylus does not need to be additionally occupied, that is, the battery volume of the stylus can not be invaded, and the user experience can also be improved.
  • the stylus further includes a Bluetooth module, and the Bluetooth module is electrically connected to the first radiator to send and receive the Bluetooth signal through the first radiator. In this way, the stylus can establish a communication connection with the electronic device through the Bluetooth module, thereby providing the user's experience.
  • the stylus further includes a first isolation element, a first end of the first isolation element is electrically connected to the first radiator, and a second end of the first isolation element It is electrically connected to the Bluetooth module. Therefore, the electrode signal can be isolated by the first isolation element, so as to prevent these low-frequency square wave signals from causing interference to the Bluetooth module, and the first isolation element can also prevent the electrode signal from being passed through the Bluetooth module. The short-circuit fails, thereby improving the user experience.
  • the stylus further includes a Bluetooth matching circuit
  • the Bluetooth matching circuit is electrically connected between the second end of the first isolation element and the Bluetooth module for balancing The impedance between the Bluetooth module and the first radiator.
  • the impedance between the Bluetooth module and the first radiator can be balanced, so that the impedance between the two can reach a matching state, thereby improving the user experience.
  • the stylus pen further includes a control module electrically connected to the first radiator to send and receive the electrode signal through the first radiator.
  • the stylus can send and receive the electrode signal through the control module and the first radiator, so that the electronic device can determine the touch of the stylus on the pen tip of the electronic device based on the electrode signal. Control the location, and then improve the user experience.
  • the stylus further includes a second isolation element, and the second isolation element is electrically connected between the first radiator and the control module. Therefore, the Bluetooth signal can be isolated by the second isolation element, so as to prevent these high-frequency Bluetooth signals from causing interference to the control module, thereby improving the user experience.
  • the stylus further includes a third isolation element, the first end of the third isolation element is electrically connected to the first radiator, and the second end of the third isolation element Grounded.
  • the third isolation element can prevent the electrode signal from being short-circuited to the ground to fail, thereby improving the user experience.
  • the first radiator includes a first power feeder and a second power feeder
  • the Bluetooth module feeds a radio frequency signal to the first radiation through the first power feeder
  • the control module feeds a voltage signal to the first radiator through the second power feeder.
  • the Bluetooth module can realize that the radiator radiates a Bluetooth signal by feeding a radio frequency signal to the first power feeder, and the first radiator can also receive electrode signals.
  • the first radiator includes a first radiating part, and the first power feeding part and the second power feeding part are both provided at a first end of the first radiating part.
  • the Bluetooth module can realize that the radiator radiates Bluetooth signals by feeding a current signal to the first power feeder, and the first radiator can also receive electrode signals.
  • the radiator further includes a second radiating part, and the second end of the first radiating part is electrically connected to the first end of the second radiating part.
  • the Bluetooth module can feed radio frequency signals to the first power feeder, so that the first radiator can finally send and receive Bluetooth signals, and the first radiator can also receive or send electrodes. Signal, and then improve the user experience.
  • the second end of the first radiating portion extends upward to form a connecting portion, and the second end of the first radiating portion is electrically connected to the second radiating portion through the connecting portion.
  • a first opening is formed between the first end and the second end of the first radiating part, and a second opening is formed between the first end and the second end of the second radiating part .
  • the first power feeder and the second power feeder are both disposed adjacent to the first opening. As a result, the user experience is improved.
  • the stylus provided in the embodiments of the present application uses the same radiator to radiate Bluetooth signals and receive or send electrode signals, and achieve signal isolation through inductors and capacitive devices, so as to realize the coexistence of the two.
  • the main body of the stylus saves space for the layout of the Bluetooth antenna, avoids encroaching on the volume of the battery, improves the battery life experience, and can also reduce the risk of the Bluetooth antenna being held by hand, and enhance the user experience.
  • FIG. 1 is a schematic diagram of a stylus pen and its use in the prior art.
  • Fig. 2 is a schematic diagram of a stylus provided by an embodiment of the present application.
  • Fig. 3 is a circuit diagram of the stylus provided by the first embodiment of the present application.
  • Fig. 4 is a circuit diagram of the stylus provided by the second embodiment of the present application.
  • Fig. 5 is a circuit diagram of the stylus provided by the third embodiment of the present application.
  • Fig. 6 is a schematic diagram of the tip of a stylus provided by an embodiment of the present application.
  • Fig. 7 is a schematic diagram of a radiator proposed in an embodiment of the present application.
  • Fig. 8 is a schematic diagram of a Bluetooth radiation unit proposed by an embodiment of the present application.
  • FIG. 9 is a schematic diagram of an electrode radiation part proposed by an embodiment of the present application.
  • FIG. 10 is a graph of S parameter (scattering parameter) of the radiator in the stylus provided by an embodiment of the present application.
  • FIG. 11 is a diagram of the radiation efficiency of the radiator in the stylus provided by an embodiment of the present application.
  • the first radiator P1 The first radiator P1
  • the first isolation element P2 is the first isolation element
  • the third isolation element P6 is the third isolation element
  • the second radiator P7 The second radiator P7
  • an embodiment of the present application provides a stylus 100.
  • the stylus 100 in the embodiment of the present application can be associated with an electronic device (not shown) with a touch function, and the display content of the electronic device can be operated through the stylus 100.
  • the electronic device may be a mobile phone, a handheld computing device, a personal digital assistant (PDA), a tablet computer, or the like.
  • PDA personal digital assistant
  • the stylus 100 in the embodiment of the present application may include a main body 10 and a pen tip 20.
  • the main body 10 is used to provide a holding part. That is, the user holds the main body 10 and then holds the stylus pen 100.
  • the main body 10 may also be used to house the battery 30, the circuit board 40, and other related devices, which is not specifically limited in the present application.
  • the main body 10 may be configured as a cylinder, or an ellipsoid is a better choice.
  • the main body 10 in other three-dimensional shapes such as a rectangular parallelepiped, and this application does not make specific restrictions.
  • the pen tip 20 is provided at one end of the main body 10, and at least a part of the pen tip 20 is used to contact the touch screen of the electronic device, so that the electronic device can determine the touch of the stylus on the touch screen. Therefore, when the user holds the main body 10, the pen tip 20 can be used for touch control, so as to realize the input of information by the stylus.
  • the central axis of the pen tip 20 and the main body 10 may be collinear. In other embodiments, the central axis of the pen tip 20 and the main body 10 may not be collinear.
  • the pen tip 20 may include a first radiator P1, and the first radiator P1 may simultaneously serve as the Bluetooth radiating part and the electrode radiating part of the stylus.
  • the first radiator P1 is used for sending and receiving Bluetooth signals, and for receiving or sending electrode signals.
  • the electrode signal can be used by the touch screen of the electronic device to determine the touch position of the stylus pen. That is, in the embodiment of the present application, the first radiator P1 can be used to receive electrode signals. In some embodiments of the present application, the first radiator P1 may also be used to transmit electrode signals.
  • the stylus 100 can send a Bluetooth signal to an electronic device and receive a Bluetooth signal of the electronic device through the first radiator P1.
  • the stylus 100 can also send electrode signals to or receive electrode signals of the electronic device through the first radiator P1.
  • the electrode signal may be a voltage signal, that is, the electrode signal may be a voltage square wave signal with a frequency band of 100KHz-500KHz.
  • the pen tip 20 may further include a second radiator P7 and a third radiator P8.
  • the second radiator P7 and the third radiator P8 are both TX electrodes, that is, the second radiator P7 and the third radiator P8 can both be used to direct electrons The device sends electrode signals.
  • the tip 20 of the stylus 100 in the embodiment of the present application is a position that the user does not often hold, it is difficult for the user to touch the first radiator P1 regardless of whether the stylus is in the writing mode or the air mouse mode.
  • the Bluetooth antenna can be arranged in the limited space of the stylus, and at the same time, the user's hand-holding experience can also be taken into consideration.
  • the first radiator P1 is arranged at the position of the pen tip, there is no need to additionally occupy the volume of the main body 10 in the stylus 100.
  • FIG. 3 is a circuit diagram of the first embodiment of the stylus 100 of the present application.
  • the stylus 100 may include a first isolation element P2 and a Bluetooth matching circuit P4.
  • the first isolation element P2 may be a capacitor.
  • the first end of the first isolation element P2 is electrically connected to the first radiator P1, and the second end of the first isolation element P2 is electrically connected to the Bluetooth matching circuit P4. That is, Bluetooth signals can be sent and received through the first radiator P1.
  • the stylus 100 may further include a second isolation element P3.
  • the second isolation element P3 may be an inductor.
  • the second isolation element P3 is electrically connected to the first radiator P1. That is, in an embodiment of the present application, the electrode signal can be received through the second isolation element P3 and the first radiator P1.
  • FIG. 4 is a circuit diagram of a second embodiment of the stylus 100 of this application.
  • the differences between the stylus pen 100 of this embodiment and the stylus pen 100 of the first embodiment are:
  • the stylus 100 may further include a third isolation element P6.
  • the first end of the third isolation element P6 is electrically connected to the first radiator P1, and the second end of the third isolation element P6 is grounded.
  • the third isolation element P6 may optionally be a capacitor.
  • the first radiator P1 may be an inverted F antenna (IFA) mode with its own grounding leg.
  • IFA inverted F antenna
  • the third isolation element P6 can be used to prevent the electrode signal from entering the Bluetooth module, and can prevent the electrode signal from being short-circuited to the ground through the Bluetooth module.
  • FIG. 5 is a circuit diagram of a third embodiment of the stylus 100 of the present application.
  • the differences between the stylus pen 100 of this embodiment and the stylus pen 100 of the first embodiment are:
  • the stylus 100 may further include a control module P5 and a Bluetooth module P9.
  • the second isolation element P3 is electrically connected between the first radiator P1 and the control module P5, and the control module P5 is electrically connected to the first isolation element P3 through the second isolation element P3.
  • control module P5 may be provided in the main body 10.
  • the Bluetooth module P9 is electrically connected to the Bluetooth matching circuit P4. That is, the Bluetooth module P9 is electrically connected to the first radiator P1, and further transmits and receives the Bluetooth signal through the first radiator P1.
  • the stylus 100 can establish a communication connection with an electronic device through the Bluetooth module P9.
  • the Bluetooth module P9 may be provided in the main body 10.
  • the Bluetooth matching circuit P4 can be electrically connected between the second end of the first isolation element P2 and the Bluetooth module P9, and thus can be used to balance the Bluetooth module P9 and the Bluetooth module P9.
  • the impedance between the first radiator P1 in turn enables the impedance between the two to reach a matching state.
  • the first isolation element P2 (such as a capacitor) is provided between the first radiator P1 and the Bluetooth module P9, that is, the capacitor can prevent the electrode from the control module P5 The signal enters the Bluetooth module P9 to avoid the electrode signal from causing interference to the Bluetooth module P9.
  • the first isolation element P2 can also be used to prevent the electrode signal from being short-circuited through the Bluetooth module P9.
  • the first radiator P1 and the control module P5 are provided between the The second isolation element P3 (such as an inductor) prevents high-frequency Bluetooth signals from entering the control module P5 through the inductor.
  • the effect of isolating Bluetooth signals and electrode signals can be achieved through the first isolation element P2 and the second isolation element P3, and the sending and receiving functions of Bluetooth signals and electrode signals can be achieved through the same radiator.
  • first isolation element P2 and the second isolation element P3 are both disposed close to the first radiator P1.
  • multiple first isolation elements may be connected in series between the first radiator P1 and the Bluetooth module P9, or the first radiator P1 and the Bluetooth module P9 may be connected in series. Multiple first isolation elements can also be connected in parallel. For example, multiple capacitors may be connected in series between the first radiator P1 and the Bluetooth module P9, or multiple capacitors may be connected in parallel between the first radiator P1 and the Bluetooth module P9. In addition, the capacitance value between the first radiator P1 and the Bluetooth module P9 can be changed and adjusted according to actual needs.
  • multiple second isolation elements may be connected in series between the first radiator P1 and the control module P5, or between the first radiator P1 and the control module P5
  • Multiple second isolation elements can also be connected in parallel.
  • multiple inductors may be connected in series between the first radiator P1 and the control module P5, or multiple inductors may be connected in parallel between the first radiator P1 and the control module P5.
  • the inductance value between the first radiator P1 and the control module P5 can be changed and adjusted according to actual needs.
  • the battery 30 and the circuit board 40 are both arranged in the main body 10.
  • the Bluetooth module P9 and the control module P5 can be set on the circuit board 40, and the battery 30 can be used to provide related devices such as the Bluetooth module P9 and the control module P5. power supply.
  • FIG. 6 shows a partial structure diagram of the pen tip 20 according to an embodiment of the application.
  • the third radiator P8 is sleeved on the second radiator P7, and the first radiator P1 is sleeved on the second radiator P7.
  • the second radiator P7 and the third radiator P8 are both electrically connected to the control module P5, that is, the second radiator P7 and the third radiator P8 Both can be used to send electrode signals to electronic devices.
  • both the second radiator P7 and the third radiator P8 can be TX electrodes.
  • the second radiator P7 is a columnar electrode
  • the third radiator P8 is a cone-shaped ring electrode.
  • the design of the electrode shape can be different according to actual needs, that is, the electrode shapes of the second radiator P7 and the third radiator P8 shown in the embodiment of the present application are only used as an example for illustration, not It is a specific limitation of this application.
  • FIG. 7 shows a specific structure diagram of the first radiator P1 according to an embodiment of the application.
  • the first radiator P1 has a spiral structure.
  • the length of the first radiator P1 may be a quarter of the working wavelength of the Bluetooth antenna. In the embodiment of the present application, the length of the first radiator P1 may be 25 mm. Therefore, the Bluetooth signal radiated by the first radiator P1 can be made to work in the 2.4 GHz Bluetooth frequency band.
  • the first radiator P1 may include a first radiating part 32 and a second radiating part 34.
  • the first end of the first radiating portion 32 may be provided with a grounding portion 328.
  • the grounding portion 328 can be connected to the main body 10 through a cable (not shown) to provide a ground for the first radiator P1.
  • the cable may include a core (not shown) and an outer conductor (not shown) surrounding the core.
  • One end of the wire core is electrically connected to the grounding portion 328, and the outer conductor is electrically connected to a metal component (not shown) in the main body 10, so as to realize the grounding of the first radiator P1.
  • both the first radiating portion 32 and the second radiating portion 34 are substantially annular.
  • the first end of the first radiation portion 32 is provided with a first power feeding portion 322. Therefore, the Bluetooth module P9 can feed the radio frequency signal F1 to the first radiating part 32 through the first feeding part 322.
  • the first end of the first radiating portion 32 is further provided with a second power feeding portion 324.
  • the control module P5 may feed a voltage signal V1 to the first radiating part 32 through the second power feeding part 324, or an electrode signal received by the first radiator P1 It can also be transmitted to the control module P5 through the second feeder 324.
  • the second end of the first radiating portion 32 extends upward to form a connecting portion 36.
  • the second end of the first radiating portion 32 is electrically connected to the first end of the second radiating portion 34 through the connecting portion 36, so that the first radiator P1 can radiate Bluetooth signals and electrodes outward Signal.
  • a first opening 326 is formed between the first end and the second end of the first radiating portion 32, and a second opening 342 is formed between the first end and the second end of the second radiating portion 34.
  • the first power feeding portion 322 and the second power feeding portion 324 are both disposed close to the first opening 326.
  • the first radiating portion 32, the second radiating portion 34, the connecting portion 36, the first feeding portion 322, and the second feeding portion 324 may be It is made of materials such as iron parts, metal copper foil, and conductors in the laser direct structuring (LDS) process.
  • LDS laser direct structuring
  • the Bluetooth module P9 feeds radio frequency signals to the first radiating portion 32 through the first feeding portion 322, the first radiator P1 at this time can be used as a Bluetooth radiating portion 22 to use.
  • the Bluetooth module P9 at this time can send and receive Bluetooth signals through the Bluetooth radiation part 22, so that the stylus can establish a Bluetooth connection with the electronic device.
  • the control module P5 feeds a voltage signal to the first radiation portion 32 through the second power feeding portion 324
  • the first radiator P1 at this time can serve as the electrode radiation portion 24 To use.
  • control module P5 at this time can send or receive electrode signals through the electrode radiation part 24, so that the electronic device can determine the touch of the stylus on the touch screen of the electronic device based on the electrode signal. Location.
  • Fig. 10 is a graph of S parameter (scattering parameter) of the stylus.
  • the curve S101 is a graph of S parameters (scattering parameters) of the stylus without TX electrodes
  • the curve S102 is a graph of S parameters (scattering parameters) of the stylus with TX electrodes. It can be seen from FIG. 10 that the stylus can make the Bluetooth signal radiated by the first radiator P1 work in the 2.4 GHz Bluetooth frequency band.
  • FIG. 11 is a graph of the radiation efficiency of the stylus 100. It can be seen from FIG. 11 that the resonance of Bluetooth is biased towards a low level, and the peak efficiency of the first radiator P1 drops by about 3 dB.
  • the stylus 100 provided by the embodiment of the present application uses a radiator to radiate Bluetooth signals and electrode signals, and can realize signal isolation through inductance and capacitance, so as to realize the coexistence of the two, so as to lay out in the limited space of the stylus Bluetooth antenna. On the one hand, it can reduce the risk of hand-holding, on the other hand, it can increase the available battery space and improve the user experience.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Position Input By Displaying (AREA)

Abstract

L'invention concerne un stylet (100), ledit stylet (100) comprenant un corps principal (10) et une pointe de stylet (20) ; ladite pointe de stylet (20) est disposée à une extrémité du corps principal (10) ; au moins une partie de la pointe de stylet (20) est utilisée pour entrer en contact avec un écran de commande tactile d'un dispositif électronique ; la pointe de stylet (20) comprend un premier corps rayonnant (P1) ; ledit premier radiateur (P1) sert simultanément de partie rayonnante Bluetooth et d'une partie rayonnante du stylet (100) ; le premier corps rayonnant (P1) est utilisé pour envoyer et recevoir des signaux Bluetooth, et est utilisé pour recevoir ou envoyer des signaux d'électrode ; le signal d'électrode peut être utilisé par l'écran de commande tactile du dispositif électronique pour déterminer une position de commande tactile du stylet (100). Le stylet (100) peut être pourvu d'une antenne Bluetooth dans l'espace limité du stylet (100), ce qui améliore l'expérience de l'utilisateur.
PCT/CN2020/136336 2020-01-16 2020-12-15 Stylet WO2021143423A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202010047748.2 2020-01-16
CN202010047748.2A CN113138680B (zh) 2020-01-16 2020-01-16 手写笔

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WO2021143423A1 true WO2021143423A1 (fr) 2021-07-22

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