WO2019203425A1 - Dispositif et procédé de traitement de signal de stylo optique à fréquence de résonance modifiée - Google Patents

Dispositif et procédé de traitement de signal de stylo optique à fréquence de résonance modifiée Download PDF

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Publication number
WO2019203425A1
WO2019203425A1 PCT/KR2019/000824 KR2019000824W WO2019203425A1 WO 2019203425 A1 WO2019203425 A1 WO 2019203425A1 KR 2019000824 W KR2019000824 W KR 2019000824W WO 2019203425 A1 WO2019203425 A1 WO 2019203425A1
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WO
WIPO (PCT)
Prior art keywords
resonant frequency
electronic pen
electronic device
signal
frequency
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Application number
PCT/KR2019/000824
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English (en)
Korean (ko)
Inventor
김용운
신용주
추나영
안진완
이지우
Original Assignee
삼성전자 주식회사
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Application filed by 삼성전자 주식회사 filed Critical 삼성전자 주식회사
Publication of WO2019203425A1 publication Critical patent/WO2019203425A1/fr

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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
    • 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
    • G06F3/0354—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
    • G06F3/038—Control and interface arrangements therefor, e.g. drivers or device-embedded control circuitry
    • 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
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2200/00—Indexing scheme relating to G06F1/04 - G06F1/32
    • G06F2200/16—Indexing scheme relating to G06F1/16 - G06F1/18
    • G06F2200/163—Indexing scheme relating to constructional details of the computer
    • G06F2200/1632—Pen holder integrated in the computer
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/038—Indexing scheme relating to G06F3/038
    • G06F2203/0384—Wireless input, i.e. hardware and software details of wireless interface arrangements for pointing devices

Definitions

  • Embodiments disclosed in this document relate to an apparatus and a method for processing a signal of an electronic pen whose resonance frequency is changed.
  • the electronic device may receive a user input by sensing an input of the electronic pen.
  • the electronic device may detect an input of the electronic pen using various methods. For example, the electronic device may determine an input position or an input type (eg, a hovering input, a drawing input, or a button input) of the electronic pen by receiving a signal including a specified resonance frequency from the electronic pen.
  • an input position or an input type eg, a hovering input, a drawing input, or a button input
  • the resonant frequency of the signal received from the electronic pen may be changed for various reasons.
  • the resonance frequency of the electronic pen may be changed due to the impact or heat applied to the coil or capacitor included in the resonant circuit in the process step.
  • the resonance frequency may be changed by the influence of the metal material.
  • the electronic pen may be replaced with another electronic pen having a different resonant frequency.
  • the resonance frequency of the electronic pen may be changed due to the influence of water.
  • a component eg, a filter
  • the electronic device cannot process a signal of a frequency band including the changed resonant frequency, and thus the electronic device cannot normally detect an input position or an input form of the electronic pen.
  • the electronic device may detect a changed resonance frequency and process a signal of the electronic pen according to the changed resonance frequency.
  • an electronic device includes a housing, a display panel located in the housing, viewable through the housing, configured to sense a stylus pen input, a control circuit for controlling the display panel, A communication module located within the housing, a processor located within the housing and operatively connected to the display panel and the communication module, a memory located within the housing and operatively coupled to the processor, the memory executing And upon receiving, the processor, via the communication module, a first signal from the stylus pen, the first signal comprising information about at least one frequency associated with a resonant circuit in the stylus pen, using the information at least in part, Tightening at least part of the control circuit That the instructions to be stored can be characterized.
  • a method of an electronic device may include detecting a change in a resonant frequency of a signal received from an electronic pen from a first resonant frequency to a second resonant frequency; The method may include receiving a signal including a frequency, and determining an input position of the electronic pen based at least in part on the received signal.
  • an electronic device may include an elongated housing, a dielectric part disposed at one end of the housing, a resonant circuit disposed in the housing and including at least one electronic element, and located in the housing. And a memory located in the housing and operatively connected to the communication module, the memory storing information on at least one frequency associated with the electronic element, wherein the communication module is wireless with an external electronic device. And transmit the information about the frequency by using the wireless connection.
  • the electronic device may detect that the resonance frequency of the electronic pen is changed.
  • the electronic device may determine an input position or input form of the electronic pen by processing a signal of the electronic pen whose resonance frequency is changed.
  • FIG 1 illustrates operations of an electronic device and an electronic pen according to various embodiments of the present disclosure.
  • FIG. 2 is a flowchart illustrating an operation of an electronic device that determines an input position of an electronic pen based at least on a signal of an electronic pen whose resonance frequency is changed according to various embodiments.
  • FIG. 3 illustrates an operation of a control circuit according to various embodiments of the present disclosure.
  • FIG. 4 is a flowchart illustrating an operation of an electronic device that processes a signal of an electronic pen whose resonance frequency is changed according to various embodiments of the present disclosure.
  • FIG. 5 illustrates an operation of detecting a changed resonant frequency using a communication module according to various embodiments of the present disclosure.
  • FIG. 6 illustrates a signal flow diagram for transmitting information related to a second resonant frequency according to various embodiments.
  • FIG. 7 illustrates an operation of determining an input form of an electronic pen using a phase detector according to various embodiments of the present disclosure.
  • FIG. 8 is a flowchart illustrating an operation of an electronic device that determines an input form of an electronic pen based at least on a phase difference according to various embodiments of the present disclosure.
  • FIG. 9 is a flowchart illustrating an operation of an electronic device that detects that a resonance frequency of an electronic pen is changed from a second resonance frequency to a third resonance frequency according to various embodiments of the present disclosure.
  • FIG. 10 is a flowchart illustrating an operation of an electronic device that detects that a resonance frequency of an electronic pen is changed from a first resonance frequency to a second resonance frequency according to various embodiments of the present disclosure.
  • FIG. 11 is a block diagram of an electronic device in a network environment according to various embodiments of the present disclosure.
  • FIG 1 illustrates operations of the electronic device 101 and the electronic pen 160 according to various embodiments of the present disclosure.
  • the electronic pen 160 may mean, for example, a stylus pen.
  • the electronic pen 160 may include a housing 162, a dielectric portion 164 (eg, a pen tip) disposed at one end of the housing 162, and a button 166.
  • the electronic pen 160 may support one or more input types.
  • the input form may include, for example, a hovering input, a drawing input in contact with the electronic device 101 through the dielectric portion 164, a button input for inputting the button 166, or an erasing input.
  • the electronic pen 160 may include a signal including a resonant frequency using the resonant circuit 172 included on a printed circuit board (PCB) 170 inside the housing 162. 151 may be generated.
  • the resonant circuit 172 may include at least one electronic device such as at least one coil, an inductor, or a capacitor.
  • the electronic pen 160 may generate the signal 151 using an electro-magnetic resonance (EMR) method, an active electrical stylus (AES) method, or an electric coupled resonance (ECR) method.
  • EMR electro-magnetic resonance
  • AES active electrical stylus
  • ECR electric coupled resonance
  • the signal 151 including the resonant frequency may be generated through the signal.
  • the electronic pen 160 transmits the signal 151 by the AES method, the electronic pen 160 may generate a signal 151 including the resonance frequency without the electromagnetic field 152 generated from the electronic device 101. Can be.
  • the resonant frequency of the electronic pen 160 may be changed from the first resonant frequency to the second resonant frequency for various reasons. have.
  • the resonance frequency of the electronic pen 160 may be changed due to the impact or heat applied to the coil or capacitor included in the resonance circuit 172.
  • the resonance frequency may be changed by the influence of the metal material.
  • the electronic pen 160 may be replaced with another electronic pen having a different resonant frequency.
  • the resonance frequency of the electronic pen 160 may be changed due to the influence of water.
  • the electronic device 101 may detect that the resonant frequency of the electronic pen 160 is changed, and detect the input of the electronic pen 160 by processing the changed resonant frequency.
  • the electronic device 101 may include a portable device such as a smartphone or a tablet, a computer device, a portable multimedia device, a portable medical device, a camera, a wearable device, or a home appliance.
  • the electronic device 101 may include a housing 105, a display panel 110, a control circuit 120, and a processor 126 located in the housing 105.
  • the electronic device 101 may omit at least some of the components shown in FIG. 1 or may further include at least one component.
  • the electronic device 101 may further include at least one of the components shown in FIG. 11.
  • the electronic device 101 may further include a hole for accommodating the electronic pen 160 inside the electronic device 101.
  • the display panel 110 may provide visual information to the outside of the electronic device 101.
  • the display panel 110 may be, for example, a liquid crystal display (LCD), an organic electroluminescence (EL), a thin film transistor-liquid crystal display (TFT LCD), or an organic light emitting diode (organic). light-emitting diodes (OLEDs), and plasma display panels (PDPs).
  • the electronic device 101 may determine an input position or input type of the electronic pen 160 based at least on the signal 151 detected on the display panel 110.
  • the electronic device 101 may determine the input position of the electronic pen 160 based on at least one of the resonant frequency of the signal 151 and the strength of the signal 151.
  • the electronic device 101 may determine an input form of the electronic pen 160 based on a phase difference between the resonance frequency of the signal 151 detected on the display panel 110 and a predetermined reference frequency.
  • control circuit 120 may be disposed at the bottom of the display panel 110.
  • control circuit 120 is implemented as at least one chip or module to perform the overall operation of the electronic device 101 for processing the signal of the electronic pen 160 whose resonance frequency is changed. Can be.
  • the specific configuration of the control circuit 120 is described in FIGS. 3 and 5.
  • the processor 126 may include at least one of a micro controller unit (MCU), a phase locked loop (PLL), an application processor (AP), a communication processor (CP), or a digital signal processor (DSP). Can be.
  • the processor 126 may be operatively connected to the display panel 110 and the control circuit 120.
  • the processor 126 may detect that the resonance frequency of the electronic pen 160 is changed from the first resonance frequency to the second resonance frequency. For example, the processor 126 may receive information related to the second resonant frequency from the electronic pen 160. In another example, when the signal of the second resonance frequency is detected for a predetermined time, the processor 126 may determine that the resonance frequency of the electronic pen 160 is changed to the second resonance frequency. According to an embodiment of the present disclosure, the processor 126 may receive information related to the second resonance frequency by wire through a port positioned at one end of the housing 105. According to another embodiment, the processor 126 may receive information related to the second resonant frequency through wireless communication.
  • the wireless communication may include, for example, a Bluetooth low energy (BLE) protocol or an EMR scheme defined by a Bluetooth special interest group (SIG).
  • the processor 126 may determine an input position or an input form of the electronic pen 160 by processing a signal of the electronic pen 160 whose resonance frequency is changed through the control circuit 120. For example, the processor 126 may radiate the electromagnetic field 152 through the control circuit 120. In another example, the processor 126 may receive a signal including the second resonant frequency from the electronic pen 160 through the display panel 110. In another example, the processor 126 may determine an input position or input form of the electronic pen 160 based at least in part on the received signal.
  • the electronic device 101 may determine the input position or the input form of the electronic pen 160 even if the resonant frequency of the electronic pen 160 is changed.
  • 2 is a flowchart illustrating an operation of an electronic device 101 that processes a signal of an electronic pen 160 whose resonance frequency is changed according to various embodiments. 2 may be performed by the electronic device 101 or some component of the electronic device 101 (for example, the processor 126 or the control circuit 120).
  • the electronic device 101 may detect that the resonance frequency of the electronic pen 160 is changed from the first resonance frequency to the second resonance frequency. For example, the electronic device 101 may receive information related to the second resonant frequency from the electronic pen 160. In this case, according to an embodiment of the present disclosure, the electronic device 101 may receive information related to the second resonant frequency after pairing with the electronic pen 160. For another example, when a signal including the second resonant frequency is detected for a specified time, the electronic device 101 may determine that the resonant frequency of the electronic pen 160 is changed to the second resonant frequency.
  • the electronic device 101 may receive a signal including a second resonance frequency from the electronic pen 160.
  • the electronic device 101 may receive a signal generated from the electronic pen 160 according to the AES method, or may receive a signal derived from the electronic pen 160 according to the EMR method.
  • the electronic device 101 may determine an input position of the electronic pen 160 based at least in part on the received signal. According to an embodiment of the present disclosure, the electronic device 101 may determine not only an input position of the electronic pen 160 but also an input form of the electronic pen 160.
  • the input form may include, for example, a hovering input, a drawing input, an erasing input, or a button input.
  • control circuit 120 illustrates an operation of the control circuit 120 according to various embodiments.
  • the control circuit 120 includes a converter 122, a receiving circuit 124, and a transmitting circuit 128. can do.
  • the control circuit 120 may omit at least one of the components shown in FIG. 3 or may further include at least one component.
  • the control circuit 120 may not include the transmission circuit 128.
  • the control circuit 120 may further include a channel selector (or multiplexer, MUX) (not shown) configured to select a signal received from the electronic pen 160 according to the channel. have.
  • the control circuit 120 may be implemented as a printed circuit board (PCB).
  • the transmitting circuit 128 when the electronic pen 160 transmits the signal 151 by the EMR method, the transmitting circuit 128 generates a current for the electromagnetic field 152 to generate electromagnetic induction of the resonant circuit 172. Can be generated. According to an embodiment, when the electronic pen 160 transmits the signal 151 by the AES method, the control circuit 120 may not include the transmission circuit 128.
  • the converter 122 may convert the resonant frequency of the signal 151 received from the electronic pen 160.
  • the converter 122 may down convert or up convert the resonant frequency of the signal 151 received through the sensor panel 112 from the second resonant frequency to the first resonant frequency. Can be.
  • the converter 122 may transmit the signal whose resonance frequency is converted to the receiving circuit 124.
  • the receiving circuit 124 may include at least one of an amplifier, a filter, or an analog digital converter (ADC). According to an embodiment of the present disclosure, the receiving circuit 124 may filter the signal received from the converter 122 according to a designated frequency band, and transmit the filtered signal to the processor 126.
  • the designated frequency band may comprise, for example, a first resonant frequency.
  • the processor 126 may control the operations of the converter 122, the receiving circuit 124, and the transmitting circuit 128.
  • processor 126 may radiate electromagnetic field 152 through transmit circuitry 128.
  • the processor 126 may convert the second resonant frequency into the first resonant frequency through the converter 122.
  • the processor 126 may filter the converted signal through the receiving circuit 124 according to a designated frequency band and determine an input position of the electronic pen 160 based at least in part on the filtered signal.
  • the processor 126 may bypass the converter 122 by a signal including the first resonant frequency.
  • Converter 122 may be controlled.
  • the electronic device 101 may determine the input position of the electronic pen 160 by converting the resonance frequency of the signal through the converter 122 even if the resonance frequency of the electronic pen 160 is changed.
  • FIG. 4 is a flowchart illustrating an operation of an electronic device 101 that processes a signal of an electronic pen 160 having a resonant frequency changed according to various embodiments.
  • the operations illustrated in FIG. 4 may refer to operations in which operation 215 of FIG. 2 is performed in more detail.
  • the electronic device 101 may convert the second resonance frequency into the first resonance frequency.
  • the electronic device 101 may perform up-conversion or down-conversion through the converter 122.
  • the electronic device 101 may filter the converted signal in a frequency band including the first resonance frequency.
  • the electronic device 101 may filter through the receiving circuit 124.
  • the electronic device 101 may determine an input position of the electronic pen 160 based at least in part on the filtered signal.
  • the input position of the electronic pen 160 may be determined based on at least one of, for example, a resonant frequency of the signal and a strength of the signal.
  • FIG 5 illustrates an operation of detecting a changed resonance frequency by using the communication modules 130 and 174 according to various embodiments.
  • the electronic pen 160 may include a resonant circuit 172 and a communication module 174 on the PCB 170.
  • the communication module 174 may mean a module including at least one of a communication processor (CP), a transceiver, and an antenna.
  • the communication module 174 may be referred to as a wireless communication circuit.
  • control circuit 120 may further include a communication module 130 and a memory 140.
  • control circuit 120 eg, the processor 1266 may receive information related to the second resonance frequency from the electronic pen 160 through the communication module 130.
  • control circuit 120 may receive information related to the second resonant frequency based on the BLE protocol.
  • control circuit 120 may store information related to the second resonant frequency in the memory 140.
  • the processor 126 may control the up-conversion or down-conversion of the converter 122 based on the information related to the second resonant frequency.
  • FIG. 6 illustrates a signal flow diagram for transmitting information related to a second resonant frequency according to various embodiments.
  • the electronic pen 160 may transmit information related to the second resonant frequency to the electronic device 101.
  • the electronic pen 160 may transmit information related to the second resonant frequency based on the BLE protocol.
  • the electronic device 101 may store information related to the second resonance frequency.
  • the electronic device 101 may store information related to the second resonance frequency in the memory 140.
  • the electronic device 101 may transmit a response message indicating that the information related to the second resonant frequency has been received to the electronic pen 160.
  • the response message may include, for example, an acknowledgment (ACK) message according to the BLE protocol.
  • ACK acknowledgment
  • the electronic device 101 may not perform operation 615.
  • the electronic pen 160 may transmit a signal including the second resonant frequency to the electronic device 101.
  • the electronic pen 160 may transmit a signal according to an EMR method or an AES method.
  • the electronic device 101 may determine an input position of the electronic pen 160 based at least on a signal including the second resonant frequency and information related to the second resonant frequency. For example, the electronic device 101 may determine the input position of the electronic pen 160 by converting the second resonant frequency to the first resonant frequency and filtering the converted signal.
  • FIG. 7 illustrates an operation of determining an input form of the electronic pen 160 by using a phase detector 127 according to various embodiments.
  • FIG. 7 illustrates an embodiment in which the electronic device 101 shown in FIG. 5 further includes a phase detector 127, but the electronic device 101 may omit the communication module 130.
  • the resonant circuit 172 of the electronic pen 160 may include a coil L and a variable capacitor VC.
  • the switch SW may include a switch SW connected in series with the first capacitor C1, the second capacitor C2, and / or the second capacitor C2.
  • the resonance frequency of the signal 151 generated by the resonance circuit 172 may be expressed based on Equation 1 below.
  • the resonant frequency of the signal may be changed according to the input form of the electronic pen 160.
  • f resonant frequency
  • Equation 1 may be determined by L and C1.
  • the VC increases according to the force transmitted to the pen tip 164.
  • the switch SW of the resonance circuit 172 is connected, and f is determined by L, C1, and C2.
  • the resonance frequency can be reduced.
  • the resonance frequency according to the input form of the electronic pen 160 may be expressed as shown in Table 1 below.
  • the electronic device 101 may store information related to Table 1 in the memory 140.
  • the electronic device 101 may include a phase detector 127 in the control circuit 120.
  • the phase detector 127 may determine a phase difference between a resonance frequency (eg, a second resonance frequency) of a signal received through the sensor panel 112 and a predetermined reference frequency.
  • the reference frequency may be substantially the same as the first resonance frequency.
  • the reference frequency may be one of the resonant frequencies shown in Table 1.
  • the reference frequency may be a resonance frequency (eg, 562 kHz) corresponding to the hovering input.
  • the processor 126 may use the electronic pen based on information related to the second resonant frequency stored in the memory 140 and a phase difference between the resonant frequency and the reference frequency of the signal received through the sensor panel 112.
  • the input form of 160 may be determined. For example, when the resonant frequency of the electronic pen 160 is changed from the first resonant frequency (for example, 562 kHz) to the second resonant frequency (for example, 600 kHz), the resonant frequency according to the input type is shown in Table 2 below. Can be.
  • First resonant frequency e.g., 562 kHz
  • Second resonant frequency e.g 600 kHz
  • 600 kHz 600 kHz 569-599 kHz 568 kHz 628 kHz
  • the processor 126 may detect that the resonance frequency of the electronic pen 160 is changed through the phase detector 127. For example, after the resonance frequency of the electronic pen 160 is changed from the first resonance frequency to the second resonance frequency, the resonance frequency of the electronic pen 160 is changed from the second resonance frequency to the third resonance frequency by various causes. can be changed. Various causes may be caused, for example, when the housing 162 of the electronic pen 160 is changed to a metallic material, when the electronic pen 160 is replaced with another electronic pen having a third resonant frequency, or due to the influence of water. It may include a case where the resonant frequency of the pen 160 is changed to the third resonant frequency.
  • the processor 126 may determine that a signal including the third resonant frequency is detected through the phase difference between the third resonant frequency and the second resonant frequency determined by the phase detector 127. When a signal including the third resonant frequency is detected for a specified time, the processor 126 may determine that the resonant frequency of the electronic pen 160 is changed to the third resonant frequency.
  • the processor 126 may store information related to the third resonant frequency in the memory 140.
  • the processor 126 may change the third resonant frequency to the first resonant frequency through the converter 122.
  • the processor 126 may control the converter 122 so that the received signal bypasses the converter 122.
  • 8 is a flowchart illustrating an operation of an electronic device 101 that determines an input form of the electronic pen 160 based at least on a phase difference according to various embodiments of the present disclosure. 8 may be performed after operation 210 of FIG. 2, may be performed in parallel with operations 405 to 415 of FIG. 4, or may be performed in advance.
  • the electronic device 101 may determine a phase difference between the second resonance frequency and the first resonance frequency. For example, the electronic device 101 may determine the phase difference through the phase detector 127.
  • the electronic device 101 may determine an input form of the electronic pen 160 based at least on the phase difference.
  • the input form may include, for example, a hovering input, a drawing input, an erasing input, or a switch input.
  • the electronic device 101 may determine an input form of the electronic pen 160 based on information and a phase difference related to the second resonance frequency.
  • FIG. 9 is a flowchart illustrating an operation of the electronic device 101 that detects that the resonant frequency of the electronic pen 160 is changed from the second resonant frequency to the third resonant frequency according to various embodiments. Operations shown in FIG. 9 may be performed after operation 415 of FIG. 4.
  • the resonant frequency of the electronic pen 160 may be changed from the second resonant frequency to the third resonant frequency.
  • at least a part of the second resonant frequency may be different from the third resonant frequency.
  • the third resonant frequency may be the same as or different from the first resonant frequency.
  • the electronic device 101 eg, the processor 126) may receive a signal including a third resonant frequency from the electronic pen 160.
  • the electronic device 101 may determine a phase difference between the third resonance frequency and the second resonance frequency. For example, the electronic device 101 may determine the phase difference between the third resonance frequency and the second resonance frequency through the phase detector 127.
  • the electronic device 101 may determine whether a signal including the third resonant frequency is detected for a specified time. If a signal including the third resonant frequency is not detected for a specified time, the electronic device 101 may end the algorithm of FIG. 9. When a signal including the third resonant frequency is detected for a predetermined time, in operation 920, the electronic device 101 may determine that the resonant frequency of the electronic pen 160 is changed from the second resonant frequency to the third resonant frequency.
  • 10 is a flowchart illustrating an operation of the electronic device 101 that detects that the resonant frequency of the electronic pen 160 is changed from the first resonant frequency to the second resonant frequency according to various embodiments. 10 may refer to operations in which operation 205 of FIG. 2 is performed in more detail.
  • the electronic device 101 may set the resonance frequency of the electronic pen 160 as the first resonance frequency.
  • the electronic device 101 may store information related to an input form of the electronic pen 160 according to the first resonance frequency in the memory 140.
  • the electronic device 101 may receive a signal including the second resonant frequency from the electronic pen 160 through the sensor panel 112.
  • the electronic device 101 may determine a phase difference between the second resonance frequency and the first resonance frequency.
  • the electronic device 101 may determine whether a signal including the second resonant frequency is detected for a specified time. If a signal including the second resonant frequency is not detected for a specified time, the electronic device 101 may terminate the algorithm of FIG. 10 and determine an input position or input form of the electronic pen 160 based on the first resonant frequency. have.
  • the electronic device 101 may determine that the resonant frequency of the electronic pen 160 is changed from the first resonant frequency to the second resonant frequency.
  • FIG. 11 is a block diagram of an electronic device 1101 (eg, 101 of FIG. 1) in a network environment 1100, according to various embodiments.
  • the electronic device 1101 communicates with the electronic device 1102 through the first network 1119 (eg, a short-range wireless communication network) or the second network 1199.
  • the electronic device 1104 or the server 1108 may be communicated through a remote wireless communication network.
  • the electronic device 1101 may communicate with the electronic device 1104 through the server 1108.
  • the electronic device 1101 may include a processor 1120, a memory 1130, an input device 1150, an audio output device 1155, a display device 1160, an audio module 1170, and a sensor module.
  • the components eg, the display device 1160 or the camera module 1180
  • the components may be omitted or one or more other components may be added to the electronic device 1101.
  • some of these components may be implemented in one integrated circuit.
  • the sensor module 1176 eg, fingerprint sensor, iris sensor, or illuminance sensor
  • the display device 1160 eg, display
  • the processor 1120 may execute, for example, software (eg, a program 1140) to execute at least one other component (eg, hardware or software component) of the electronic device 1101 connected to the processor 1120. It can control and perform various data processing or operations. According to one embodiment, as at least part of the data processing or operation, the processor 1120 may transmit instructions or data received from another component (eg, the sensor module 1176 or the communication module 1190) to the volatile memory 1132. Can be loaded into, processed in a command or data stored in the volatile memory 1132, and stored in the non-volatile memory 1134.
  • software eg, a program 1140
  • the processor 1120 may transmit instructions or data received from another component (eg, the sensor module 1176 or the communication module 1190) to the volatile memory 1132. Can be loaded into, processed in a command or data stored in the volatile memory 1132, and stored in the non-volatile memory 1134.
  • the processor 1120 is a main processor 1121 (e.g., a central processing unit or an application processor), and a coprocessor 1123 (e.g., a graphics processing unit, an image signal processor) that can operate independently or together. , Sensor hub processor, or communication processor). Additionally or alternatively, coprocessor 1123 may be configured to use lower power than main processor 1121, or to be specific to a designated function. The coprocessor 1123 may be implemented separately from or as part of the main processor 1121.
  • main processor 1121 e.g., a central processing unit or an application processor
  • coprocessor 1123 e.g., a graphics processing unit, an image signal processor
  • coprocessor 1123 may be configured to use lower power than main processor 1121, or to be specific to a designated function.
  • the coprocessor 1123 may be implemented separately from or as part of the main processor 1121.
  • the coprocessor 1123 may, for example, replace the main processor 1121 while the main processor 1121 is in an inactive (eg, sleep) state, or the main processor 1121 may be active (eg, execute an application). Together with the main processor 1121, at least one of the components of the electronic device 1101 (eg, the display device 1160, the sensor module 1176, or the communication module 1190). Control at least some of the functions or states associated with the. According to one embodiment, the coprocessor 1123 (eg, an image signal processor or communication processor) may be implemented as part of other functionally related components (eg, camera module 1180 or communication module 1190). have.
  • the memory 1130 may store various data used by at least one component of the electronic device 1101 (for example, the processor 1120 or the sensor module 1176).
  • the data may include, for example, software (eg, the program 1140) and input data or output data for a command related thereto.
  • the memory 1130 may include a volatile memory 1132 or a nonvolatile memory 1134.
  • the program 1140 may be stored as software in the memory 1130, and may include, for example, an operating system 1142, middleware 1144, or an application 1146.
  • the input device 1150 may receive a command or data to be used for a component (for example, the processor 1120) of the electronic device 1101 from the outside (for example, a user) of the electronic device 1101.
  • the input device 1150 may include, for example, a microphone, a mouse, a keyboard, or a digital pen (eg, a stylus pen).
  • the sound output device 1155 may output a sound signal to the outside of the electronic device 1101.
  • the sound output device 1155 may include, for example, a speaker or a receiver.
  • the speaker may be used for general purposes such as multimedia playback or recording playback, and the receiver may be used to receive an incoming call.
  • the receiver may be implemented separately from or as part of a speaker.
  • the display device 1160 may visually provide information to the outside (eg, a user) of the electronic device 1101.
  • the display device 1160 may include, for example, a display, a hologram device, or a projector and a control circuit for controlling the device.
  • the display device 1160 may include touch circuitry configured to sense a touch, or sensor circuit (eg, a pressure sensor) set to measure the strength of the force generated by the touch. have.
  • the audio module 1170 may convert sound into an electrical signal or, conversely, convert an electrical signal into a sound. According to an embodiment, the audio module 1170 acquires sound through the input device 1150, or an external electronic device (eg, connected directly or wirelessly to the sound output device 1155 or the electronic device 1101). Sound may be output through the electronic device 1102 (eg, a speaker or a headphone).
  • the electronic device 1102 eg, a speaker or a headphone
  • the sensor module 1176 detects an operating state (eg, power or temperature) of the electronic device 1101 or an external environmental state (eg, a user state), and generates an electrical signal or data value corresponding to the detected state. can do.
  • the sensor module 1176 may include, for example, a gesture sensor, a gyro sensor, an air pressure sensor, a magnetic sensor, an acceleration sensor, a grip sensor, a proximity sensor, a color sensor, an infrared sensor, a biometric sensor, It may include a temperature sensor, a humidity sensor, or an illuminance sensor.
  • the interface 1177 may support one or more designated protocols that may be used for the electronic device 1101 to be directly or wirelessly connected to an external electronic device (eg, the electronic device 1102).
  • the interface 1177 may include, for example, a high definition multimedia interface (HDMI), a universal serial bus (USB) interface, an SD card interface, or an audio interface.
  • HDMI high definition multimedia interface
  • USB universal serial bus
  • SD card interface Secure Digital Card
  • connection terminal 1178 may include a connector through which the electronic device 1101 may be physically connected to an external electronic device (eg, the electronic device 1102).
  • the connection terminal 1178 may include, for example, an HDMI connector, a USB connector, an SD card connector, or an audio connector (eg, a headphone connector).
  • the haptic module 1179 may convert an electrical signal into a mechanical stimulus (eg, vibration or movement) or an electrical stimulus that can be perceived by the user through tactile or kinesthetic senses.
  • the haptic module 1179 may include, for example, a motor, a piezoelectric element, or an electrical stimulation device.
  • the camera module 1180 may capture still images and videos. According to one embodiment, the camera module 1180 may include one or more lenses, image sensors, image signal processors, or flashes.
  • the power management module 1188 may manage power supplied to the electronic device 1101.
  • the power management module 388 may be implemented, for example, as at least part of a power management integrated circuit (PMIC).
  • PMIC power management integrated circuit
  • the battery 1189 may supply power to at least one component of the electronic device 1101.
  • the battery 1187 may include, for example, a non-rechargeable primary cell, a rechargeable secondary cell or a fuel cell.
  • the communication module 1190 may be a direct (eg wired) communication channel or wireless communication channel between the electronic device 1101 and an external electronic device (eg, the electronic device 1102, the electronic device 1104, or the server 1108). Establish and perform communication over established communication channels.
  • the communication module 1190 may operate independently of the processor 1120 (eg, an application processor) and include one or more communication processors that support direct (eg, wired) or wireless communication.
  • the communication module 1190 is a wireless communication module 1192 (eg, a cellular communication module, a near field communication module, or a global navigation satellite system (GNSS) communication module) or a wired communication module 1194 (eg It may include a local area network (LAN) communication module, or a power line communication module.
  • LAN local area network
  • Corresponding ones of these communication modules are the first network 1198 (e.g. short range communication network such as Bluetooth, WiFi direct or infrared data association (IrDA)) or the second network 1199 (e.g. cellular network, Internet, or Communicate with external electronic devices via a telecommunications network, such as a computer network (eg, LAN or WAN).
  • first network 1198 e.g. short range communication network such as Bluetooth, WiFi direct or infrared data association (IrDA)
  • the second network 1199 e.g. cellular network, Internet, or Communicate with external electronic devices via a telecommunications network, such as a computer network (eg, LAN or WAN).
  • a telecommunications network such as a computer network (eg, LAN or WAN).
  • the wireless communication module 1192 may use subscriber information (e.g., international mobile subscriber identifier (IMSI)) stored in the subscriber identification module 1196 in a communication network such as the first network 1198 or the second network 1199.
  • subscriber information e.g., international mobile subscriber identifier (IMSI)
  • IMSI international mobile subscriber identifier
  • the antenna module 1197 may transmit or receive a signal or power to an external device (eg, an external electronic device).
  • the antenna module may include one antenna including a radiator made of a conductor or a conductive pattern formed on a substrate (eg, a PCB).
  • the antenna module 1197 may include a plurality of antennas. In this case, at least one antenna suitable for a communication scheme used in a communication network, such as the first network 1198 or the second network 1199, may be, for example, from the plurality of antennas by the communication module 1190. Can be selected.
  • the signal or power may be transmitted or received between the communication module 1190 and the external electronic device through the selected at least one antenna.
  • other components eg, RFICs
  • peripheral devices eg, a bus, a general purpose input and output (GPIO), a serial peripheral interface (SPI), or a mobile industry processor interface (MIPI)
  • GPIO general purpose input and output
  • SPI serial peripheral interface
  • MIPI mobile industry processor interface
  • the command or data may be transmitted or received between the electronic device 1101 and the external electronic device 1104 through the server 1108 connected to the second network 1199.
  • Each of the electronic devices 1102 and 1104 may be the same or different type of device as the electronic device 1101.
  • all or some of the operations performed by the electronic device 1101 may be performed by one or more external devices of the external electronic devices 1102, 1104, or 1108.
  • the electronic device 1101 may instead execute the function or service itself.
  • one or more external electronic devices may be requested to perform at least a part of the function or the service.
  • the one or more external electronic devices that receive the request may execute at least a part of the requested function or service, or an additional function or service related to the request, and transmit a result of the execution to the electronic device 1101.
  • the electronic device 1101 may process the result as it is or additionally and provide it as at least part of a response to the request.
  • cloud computing distributed computing, or client-server computing technology. This can be used.
  • the electronic device eg, the electronic device 101 of FIG. 1 is located within the housing (eg, the housing 105 of FIG. 1), the housing, viewed through the housing, and a stylus pen (eg, A display panel configured to sense an input of the electronic pen 160 of FIG. 1 (eg, the display panel 110 of FIG. 1), a control circuit that controls the display panel (eg, the control circuit 120 of FIG. 1), A communication module (eg, the communication module 130 of FIG. 5) located in the housing, a processor (eg, the processor 126 of FIG. 1) located within the housing and operatively connected to the display panel and the communication module. And a memory (eg, memory 140 of FIG.
  • a first signal comprising information about at least one frequency associated with a resonant circuit in the span (e.g., resonant circuit 172 of FIG. 1), and using at least some of the information, at least a portion of the control circuit It may be characterized by storing instructions to adjust the.
  • the electronic device may further include a hole accommodating the stylus pen in the housing.
  • the communication module may be configured to support BLE.
  • the processor may receive the first signal after the electronic device is paired with the stylus pen.
  • control circuit may provide a signal generated based on one of the at least one frequency to the processor, and the instructions may generate an event on the display panel based on the generated signal. And may be configured to generate.
  • the at least one frequency includes a plurality of frequencies related to at least two of a touch, hovering, drawing, switching, or erasing operation with respect to the display panel by the stylus pen. can do.
  • control circuit includes a converter (eg, converter 122 of FIG. 3), a phase detector (eg, phase detector 127 of FIG. 7), and a receiving circuit (eg, receiving circuit 124 of FIG. 3). It may be characterized by including)).
  • the converter may have a frequency setting value adjusted based on the at least one frequency.
  • the resonant frequency of a signal received from the electronic pen may be set at a first resonance frequency. Detecting a change to a second resonant frequency, receiving a signal including the second resonant frequency from the electronic pen, and determining an input position of the electronic pen based at least in part on the received signal It may include.
  • the detecting of the resonant frequency from the first resonant frequency to the second resonant frequency may include receiving information related to the second resonant frequency from the electronic pen.
  • the determining of the input position of the electronic pen may include determining the input position of the electronic pen based at least on the information related to the second resonant frequency and the signal including the second resonant frequency.
  • receiving information related to the second resonance frequency from the electronic pen may include receiving information related to the second resonance frequency using a BLE protocol.
  • the method may further include determining a phase difference between the second resonance frequency and the first resonance frequency, and determining an input form of the electronic pen based at least on the phase difference.
  • the input form of the electronic pen may include a hovering input, a drawing input, an erasing input, or a switching input.
  • the method may include receiving a signal including a third resonant frequency from the electronic pen, determining a second phase difference between the third resonant frequency and the second resonant frequency, and The method may further include determining that the resonance frequency of the electronic pen is changed from the second resonance frequency to the third resonance frequency when the signal including the third resonance frequency is detected for a predetermined time.
  • the method may further include radiating an electromagnetic field, and receiving the signal including the second resonant frequency from the electronic pen may further include generating the second resonant frequency derived from the electromagnetic field.
  • the method may include receiving a signal from the electronic pen.
  • the electronic device (eg, the electronic pen 160 of FIG. 1) includes a long extending housing (eg, the housing 162 of FIG. 1), and a dielectric portion (eg, disposed at one end of the housing).
  • Pen tip 164 of FIG. 1 a resonant circuit (eg, resonant circuit 172 of FIG. 1) located within the housing and including at least one electronic element, a communication module (eg, FIG. 5) located within the housing Communication module (174), and a memory (not shown) located within the housing, operatively coupled to the communication module, and storing information regarding at least one frequency associated with the electronic device;
  • the module may be configured to wirelessly connect to an external electronic device (for example, the electronic device 101 of FIG. 1) and to transmit information about the frequency using the wireless connection.
  • the communication module may be configured to support BLE.
  • the electronic device may include at least one of a coil, an inductor, and a capacitor.
  • the communication module is configured to receive a signal having a different frequency from the external electronic device, and the at least one electronic device generates a signal having the frequency based at least on the received signal. Can be.
  • the input form of the electronic device may include a hovering input, a drawing input, a switching input, or an erasing input.
  • Electronic devices may be various types of devices.
  • the electronic device may include, for example, a portable communication device (eg, a smartphone), a computer device, a portable multimedia device, a portable medical device, a camera, a wearable device, or a home appliance device.
  • a portable communication device eg, a smartphone
  • a computer device e.g., a tablet, or a smart phone
  • a portable multimedia device e.g., a portable medical device
  • a camera e.g., a camera
  • a wearable device e.g., a smart watch, or a smart watch, or a smart watch, or a smart watch, or a smart watch, or a smart watch, or a smart watch, or a smart watch, or a smart watch, or a smart watch, or a smart watch, or a smart watch, or a smart watch, or a smart watch, or a smart watch, or a smart watch, or a smart watch, or a smart watch
  • first, second, or first or second may be used merely to distinguish a component from other corresponding components, and to separate the components from other aspects (e.g. Order).
  • Some (eg, first) component may be referred to as “coupled” or “connected” to another (eg, second) component, with or without the term “functionally” or “communicatively”.
  • any component can be connected directly to the other component (eg, by wire), wirelessly, or via a third component.
  • module may include a unit implemented in hardware, software, or firmware, and may be used interchangeably with terms such as logic, logic block, component, or circuit.
  • the module may be an integral part or a minimum unit or part of the component, which performs one or more functions.
  • the module may be implemented in the form of an application-specific integrated circuit (ASIC).
  • ASIC application-specific integrated circuit
  • Various embodiments of the present disclosure may include one or more instructions stored in a storage medium (eg, internal memory 1136 or external memory 1138) that can be read by a machine (eg, electronic device 1101). It may be implemented as software (eg, program 1140) including the.
  • the processor eg, the processor 1120 of the device (eg, the electronic device 1101) may call and execute at least one of the one or more instructions stored from the storage medium. This enables the device to be operated to perform at least one function in accordance with the at least one command invoked.
  • the one or more instructions may include code generated by a compiler or code executable by an interpreter.
  • the device-readable storage medium may be provided in the form of a non-transitory storage medium.
  • 'non-transitory' means only that the storage medium is a tangible device and does not contain a signal (e.g., electromagnetic waves), which is the case when data is stored semi-permanently on the storage medium. It does not distinguish cases where it is temporarily stored.
  • a signal e.g., electromagnetic waves
  • a method may be provided included in a computer program product.
  • the computer program product may be traded between the seller and the buyer as a product.
  • the computer program product is distributed in the form of a device-readable storage medium (e.g. compact disc read only memory (CD-ROM)), or through an application store (e.g. Play Store TM) or two user devices ( Example: smartphones) can be distributed (eg downloaded or uploaded) directly or online.
  • a device-readable storage medium such as a server of a manufacturer, a server of an application store, or a relay server, or may be temporarily created.
  • each component eg, module or program of the above-described components may include a singular or plural entity.
  • one or more of the aforementioned components or operations may be omitted, or one or more other components or operations may be added.
  • a plurality of components eg, a module or a program
  • the integrated component may perform one or more functions of the component of each of the plurality of components the same as or similar to that performed by the corresponding component of the plurality of components before the integration. .
  • operations performed by a module, program, or other component may be executed sequentially, in parallel, repeatedly, or heuristically, or one or more of the operations may be executed in a different order, or omitted. Or one or more other actions may be added.

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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)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • User Interface Of Digital Computer (AREA)

Abstract

L'invention concerne un dispositif électronique. Divers autres modes de réalisation identifiés au cours de la spécification sont également possibles. Le dispositif électronique comprend : un boîtier ; un panneau d'affichage, positionné à l'intérieur du boîtier, est visualisé à travers le boîtier et peut détecter l'introduction d'un stylet ; un circuit de commande, permettant de commander le panneau d'affichage ; un module de communication, positionné à l'intérieur du boîtier ; un processeur, positionné à l'intérieur du boîtier et connecté fonctionnellement au panneau d'affichage et au module de communication ; et une mémoire, positionnée à l'intérieur du boîtier et connectée fonctionnellement au processeur. Lorsque la mémoire est exécutée, le processeur reçoit du stylet, au moyen du module de communication, un premier signal, comprenant des informations relatives à au moins une fréquence associée à un circuit résonnant situé à l'intérieur du stylet, et des instructions, permettant de régler au moins une partie du circuit de commande, sont mémorisées au moyen d'au moins une partie des informations.
PCT/KR2019/000824 2018-04-17 2019-01-21 Dispositif et procédé de traitement de signal de stylo optique à fréquence de résonance modifiée WO2019203425A1 (fr)

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KR1020180044282A KR20190120906A (ko) 2018-04-17 2018-04-17 공진 주파수가 변경된 전자 펜의 신호를 처리하기 위한 장치 및 방법

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KR20220058695A (ko) 2020-10-29 2022-05-10 삼성디스플레이 주식회사 전자 장치
KR20230129127A (ko) 2022-02-28 2023-09-06 삼성디스플레이 주식회사 펜 아날로그 프론트 엔드 및 이를 이용한 펜 통신방법

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