KR20240021072A - Stylus pen with adjustable pen pressure, electronic device using the same as an input device, and operating method thereof - Google Patents

Abstract

An electronic device according to an embodiment of the present disclosure may include a display panel, a digitizer pad, a digitizer pad controller, memory, and a processor. When the memory is executed by the processor, the electronic device acquires the frequency of a magnetic field applied to the digitizer pad due to electromagnetic induction from the digitizer pad controller as the stylus pen 201 approaches the digitizer pad. And, the first pen pressure corresponding to the frequency may be determined as the pen pressure of the stylus pen, and one or more instructions for identifying the stylus pen according to the determined pen pressure may be stored.

Description

Stylus pen with adjustable pressure, electronic device using the same as an input device, and method of operating the same {STYLUS PEN WITH ADJUSTABLE PEN PRESSURE, ELECTRONIC DEVICE USING THE SAME AS AN INPUT DEVICE, AND OPERATING METHOD THEREOF}

The present disclosure relates to a stylus pen with adjustable pen pressure, an electronic device using the same as an input device, and a method of operating the same.

Electronic devices with touch screens, such as tablet PCs or smart phones, can process input using a stylus pen. Depending on the method of detecting the input signal of the stylus pen, it can be classified into pressure-sensitive type, electrostatic type, and electromagnetic resonance or electromagnetic resonance (EMR) type.

The pressure-sensitive type may be a method that detects the pressure applied by the tip of the pen to the touch screen. Capacitive may be a method of detecting changes in electrical signals generated when a tip provided with a conductor comes into contact with a capacitive touch screen. The electromagnetic induction type may be a method that detects resonance caused by electromagnetic induction between the magnetic field generated by the touch screen and the pen.

According to one embodiment, an electronic device may include a display panel, a digitizer pad, a digitizer pad controller, memory, and a processor. The memory, when executed by the processor, causes the electronic device to obtain, from the digitizer pad controller, a frequency of a magnetic field applied to the digitizer pad due to electromagnetic induction as a stylus pen approaches the digitizer pad. One or more instructions can be stored. When executed by the processor, the instructions may cause the electronic device to determine the first pen pressure corresponding to the frequency as the pen pressure of the stylus pen. When executed by the processor, the instructions may cause the electronic device to identify the stylus pen according to the determined pen pressure.

According to one embodiment, a method of operating an electronic device may include obtaining, from a digitizer pad controller, the frequency of a magnetic field applied to the digitizer pad due to electromagnetic induction as a stylus pen approaches the digitizer pad. The method may include determining the first pen pressure corresponding to the frequency as the pen pressure of the stylus pen. The method may include identifying the stylus pen according to the determined pen pressure.

According to one embodiment, the stylus pen may include a housing that is open at both ends and forms a tubular receiving space. The stylus pen may include a first core including a main body portion inserted into the housing through an opening in the front end portion and a tip exposed to the outside through an opening in the front end portion. The stylus pen may include a resonance circuit accommodated inside the housing. The stylus pen may include a pen pressure adjustment unit disposed at the rear end of the housing. When rotational force is applied to the pen pressure adjusting unit, the resonance frequency of the resonance circuit may be changed.

1 is a schematic diagram of an electronic device and a stylus pen according to one example.
Figure 2 is a schematic diagram showing the configuration of a stylus pen according to an example.
Figure 3 is a diagram showing a resonance circuit of a stylus pen according to an example.
Figure 4 is a schematic diagram showing the configuration of a variable capacitor according to an example.
Figure 5 is a block diagram showing the configuration of an electronic device according to an example.
Figure 6 is a flowchart showing the operation of an electronic device according to an example.
Figure 7 is a flowchart showing the operation of an electronic device according to an example.
Figure 8 is a block diagram of an electronic device in a network environment according to an example.
In relation to the description of the drawings, identical or similar reference numerals may be used for identical or similar components.

1 is a schematic diagram 100 of an electronic device 101 and a stylus pen 201 according to one example.

According to one example, the electronic device 101 may receive an input using the stylus pen 201. As an example, the electronic device 101 and the stylus pen 201 may perform input using electromagnetic resonance or electromagnetic induction.

The stylus pen 201 may include a core 220 and a resonance circuit 210. The stylus pen 201 may be in the form of a pen having a core 220. The core 220 may include a main body 221 and a tip 222. The body portion 221 has a rod shape and can be inserted into an opening at the front end of the stylus pen 201 and mounted on the stylus pen 201. For example, the main body 221 may be made of a hard, non-conductive material. The tip 222 may be the tip of the main body 221. The tip 222 may be mounted to be exposed to the outside of the stylus pen 201 when the main body 221 is inserted through the opening.

The stylus pen 201 may include a resonance circuit 210 therein.

The electronic device 101 may include a digitizer pad 130, a display panel 120, a window 110, and a digitizer pad controller 135. The digitizer pad 130, the display panel 120, and the window 110 may be stacked in that order.

The digitizer pad controller 135 may provide (or transfer) alternating current to the digitizer pad 130. The digitizer pad 130 may generate an electromagnetic field by alternating current. When the stylus pen 201 approaches or contacts the electromagnetic field of the digitizer pad 130, an electromagnetic induction phenomenon may occur. The resonance circuit 210 of the stylus pen 201 may generate current by electromagnetic induction. The resonance circuit 210 may form a magnetic field 20 by the generated current.

The digitizer pad controller 135 can detect the magnetic field 20 applied from the stylus pen 201 to the digitizer pad 130. For example, the digitizer pad controller 135 may detect (or identify) the frequency of the magnetic field 20. The detected frequency may be the resonance frequency of the resonance circuit 210 of the stylus pen 201. The digitizer pad controller 135 may transmit the acquired frequency information to the processor (not shown) of the electronic device 101. For example, a processor (not shown) of the electronic device 101 may determine pen pressure corresponding to the frequency.

For example, the digitizer pad controller 135 may determine the pen pressure of the stylus pen 201 based on the detected frequency and provide the determined pen pressure information to a processor (not shown). A processor (not shown) may receive pen pressure information from the digitizer pad controller 135.

The digitizer pad controller 135 can detect the position by scanning the strength of the magnetic field applied from the stylus pen 201 to the digitizer pad 130 over the entire area. The digitizer pad controller 135 may transmit the detected position to the processor (not shown) of the electronic device 101. The detected location may be provided as coordinates, for example. The processor (not shown) of the electronic device 101 may output an operation corresponding to the detected location through the display panel 120. For example, a processor (not shown) may output visual information (graphic elements or graphic objects) including text, images, or video through the display panel 120 .

Figure 2 is a schematic diagram 200 showing the configuration of a stylus pen 201 according to an example.

Referring to FIG. 2 , the stylus pen 201 according to one example may include a resonance circuit 210, a first core 220, a pen pressure adjuster 230, and a housing 290. The housing 290 is open at both ends and may include (or form) a tubular receiving space. The housing 290 may have one end (eg, a tip) narrowed. The resonance circuit 210 may be disposed inside the housing 290. At least a portion of the first core 220 may be disposed inside the housing 290 . Referring to FIG. 1 , the first core 220 may include, for example, a main body 221 and a tip 222. The main body 221 may be inserted through an opening in the front end (eg, an end in the negative direction of the x-axis) of the housing 290 and placed inside the housing 290. The tip 222 may be exposed to the outside through an opening in the front end of the housing 290. At least a portion of the pen pressure adjusting unit 230 may be disposed outside the housing 290. The pen pressure adjusting unit 230 may include, for example, a rotating unit 231, a transferring unit 233, and a second core 235. For example, the transfer unit 233 and the second core 235 may be disposed inside the housing 290. The second core 235 may be disposed inside the housing 290 in the axial direction (eg, x-axis direction) of the tubular housing 290. At least a portion of the rotating part 231 may be disposed outside the housing 290. For example, the rotating part 231 may be exposed to the outside through an opening in the rear end (eg, the end in the positive direction of the x-axis) of the housing 290. The first core 220, the resonance circuit 210, and the pen pressure adjusting unit 230 are inside the housing 290 in that order from the front side to the back side of the stylus pen 201 (e.g., in the positive direction of the x-axis). can be placed in

The resonance circuit 210 may include an inductor 211 and a variable capacitor 213. The inductor 211 may include a coil for electromagnetic resonance or electromagnetic induction operation and a magnetic core on which the coil is wound. For example, the magnetic core may be a ferrite core. For example, the ferrite core may be provided in a cylindrical shape with a through hole having a larger diameter than the diameter of the main body 221 so that at least a portion of the first core 220 can be inserted and passed through.

The variable capacitor 213 may be connected in parallel with the inductor 211. The variable capacitor 213 may not be electrically connected to the first core 220. For example, when the tip 222 is pressed into the housing 290, the first core 220 may move toward the rear portion of the stylus pen 201 through the ferrite core, but the movement of the first core 220 may not affect the capacitance of the variable capacitor 213. The first core 220 may not be electrically connected to the resonance circuit 210. The first core 220 may be a dummy pen core in the sense that it does not affect the resonance circuit 210 or the resonance frequency.

The variable capacitor 213 may be electrically connected to the pen pressure adjusting unit 230. When a rotational force is applied to the rotation unit 231, the transfer unit 233 moves the second core 235 in the front and rear direction of the stylus pen 201 or in the longitudinal or axial direction (e.g., x-axis direction) of the tubular housing 290. It can be moved forward or backward. The capacitance of the variable capacitor 213 may change according to the forward and backward movement of the second core 235.

The rotating part 231 may include, for example, a wheel or a dial. For example, as the user rotates the wheel or dial, rotational force may be applied to the pen pressure adjusting unit 230.

The transfer unit 233 may move the second core 235 forward and backward in the longitudinal direction (eg, x-axis direction) of the housing 290 using the rotational force applied to the rotation unit 231. The structure of the pen pressure adjusting unit 230 may include various physical structures that allow the transfer unit 233 to move the second core 235 forward and backward in the longitudinal direction of the housing 290 by the rotational force applied to the rotating unit 231. You can.

For example, the rotating part 231 may be screw-coupled with the transferring part 233, but the present invention is not limited thereto. For example, the transfer unit 233 may have a cylindrical through hole and may include a spiral groove on the inner peripheral surface of the through hole. For example, the rotating part 231 may be cylindrical and may include a spiral protrusion on its outer peripheral surface. For example, when a rotational force is applied to the rotating unit 231, the spiral protrusion on the outer peripheral surface of the rotating unit 231 is inserted into the spiral groove on the inner peripheral surface of the transferring unit 233, and the rotating unit 231 moves in the direction of the tip 222 (e.g., along the x-axis). It may move in the negative direction (or toward the front of the stylus pen 201). For example, the second core 235 may be connected to one end of the rotating unit 231. The second core 235 may move forward and backward in the longitudinal direction of the housing 290 as the rotating portion 231 rotates and moves forward and backward in the longitudinal direction (eg, x-axis direction) of the housing 290. For example, the movement distance of the housing 290 of the second core 235 in the longitudinal direction (eg, x-axis direction) may be determined by the rotation angle of the rotating part 231.

The variable capacitor 213 may vary the capacitance depending on the degree of movement (eg, movement distance) of the second core 235. The resonance circuit 210 may form a magnetic field with a resonance frequency determined according to capacitance.

For example, the resonance circuit 210 may include at least one capacitor (not shown) and a switch (not shown) in addition to the inductor 211 and the variable capacitor 213. For example, a switch (not shown) may connect or disconnect the capacitor by a push button (not shown) of the stylus pen 201. As the push button is pressed, the switch can connect a capacitor. As the pressure applied to the push button is removed, the switch can disconnect the capacitor. For example, a push button may be exposed or protrude through the tubular side of housing 290. When the push button is pressed, a capacitor may be additionally connected to change the resonance frequency of the resonance circuit 210.

For example, the resonance frequency of the resonance circuit 210 may be detected by the electronic device 101 and used to determine the pen pressure of the stylus pen 201. In the present disclosure, the pen pressure may be unrelated to the pressure applied to the first core 220 or the distance that the first core 220 moves inside the housing 290. In the present disclosure, pen pressure may be related to the rotation angle of the rotating part 231 and/or the distance moved by the second core 235 by the transferring part 233. In the present disclosure, pen pressure can be adjusted by the rotation unit 231, the transfer unit 233, and the second core 235. For example, the stylus pen 201 may fix the resonance frequency or pen pressure in response to the rotation angle of the rotating part 231 or the distance moved by the second core 235. According to one embodiment, the stylus pen 201 may provide a fixed pen pressure without changing for each user or at each time of use.

FIG. 3 is a diagram 300 showing the resonance circuit 210 of the stylus pen 201 according to an example.

According to one example, the resonance circuit 210 of the stylus pen 201 may include an inductor 211, at least one capacitor 212, 213, and 214, and a switch 215. The inductor 211 and at least one capacitor 212, 213, and 214 may be connected in parallel.

The resonance circuit 210 may include a variable capacitor 213. The variable capacitor 213 may vary its capacitance depending on the degree to which the rotating part 231 of the stylus pen 201 is rotated. The resonance circuit 210 may form a magnetic field with a resonance frequency determined based on the capacitance of the variable capacitor 213.

Resonant circuit 210 may include a capacitor 214 that may or may not be connected by switch 215 . For example, switch 215 may be physically connected to a push button on stylus pen 201. Based on user input by pressing a push button, switch 215 may connect capacitor 214 in parallel to capacitor 212. Switch 215 may disconnect capacitor 214 based on user input depressing the push button. The frequency of the resonance circuit 210 may vary depending on whether the capacitor 214 is connected. The resonant circuit 210 may form a magnetic field with a resonant frequency that is further determined based on whether the capacitor 214 is connected.

FIG. 4 is a schematic diagram 400 showing the configuration of the variable capacitor 213 according to an example.

The variable capacitor 213 according to one example may include a dielectric 410, a spacer 420, and a conductive elastic body 430, but is not limited thereto. The dielectric 410, the spacer 420, and the conductive elastomer 430 may be arranged side by side in the first direction (①) in that order. The first direction ① may be a direction toward the back of the stylus pen 201 (eg, the positive direction of the x-axis in FIG. 2).

The dielectric 410 may be, for example, disk-shaped and have one circular surface 410a and the other circular surface 410b facing each other. A circular conductor layer 415 may be formed on one side 410a of the dielectric 410. The conductor layer 415 may form the first electrode of the variable capacitor 213.

The spacer 420 may be made of an insulating material. The spacer 420 may be formed as a ring-shaped thin plate body whose outer diameter is the same as the diameter of the dielectric 410.

The conductive elastic body 430 may be made of, for example, conductive elastic rubber. The conductive elastic body 430 may form the second electrode of the variable capacitor 213. The conductive elastic body 430 may be formed as a thin plate-shaped body whose outer diameter is the same as the diameter of the dielectric 410. For example, two protrusions may be formed on the plate-shaped body of the conductive elastic body 430. For example, the protrusion may be for fixing to the housing 290. For example, the protrusion may be for electrical connection to another member. The spacer 420 may be, for example, adhered to the plate-shaped body of the conductive elastic body 430.

The other side 410b of the dielectric 410 may overlap the conductive elastic body 430 with the spacer 420 therebetween. The variable capacitor 213 as an example may include a first electrode composed of a conductor layer 415 formed on one side 410a of the dielectric 410 and a second electrode composed of a conductive elastic body 430. there is.

The conductive elastic body 430 may be spaced apart from the dielectric 410 by a spacer 420 . For example, the conductive elastic body 430 may be pressed by the second core body 235. As rotational force is applied to the rotating portion 231, the second core 235 moves toward the front of the stylus pen 201 (or toward the tip 222) (e.g., in the opposite direction to the first direction ①). You can. As the second core 235 moves in a direction opposite to the first direction, the conductive elastic body 430 may be pressed in a direction opposite to the first direction.

When the conductive elastic body 430 is pressed, the conductive elastic body 430 and the dielectric 410, which are spaced apart from each other, may contact through the spacer 420. The contact area between the conductive elastomer 430 and the dielectric 410 may vary depending on the degree to which the conductive elastomer 430 is pressed. The contact area may be related to the distance that the second core 235 moves in the direction opposite to the first direction. For example, the contact area may be proportional to the distance that the second core 235 moves in the direction opposite to the first direction. The distance that the second core 235 moves in the direction opposite to the first direction may vary depending on the degree (eg, rotation angle) of the rotation part 231. As the degree to which the rotating part 231 is rotated increases, the distance that the second core 235 moves in the direction opposite to the first direction may increase. As the distance that the second core 235 moves in the direction opposite to the first direction increases, the contact area between the conductive elastic body 430 and the dielectric material 410 may increase.

The contact area between the conductive elastomer 430 and the dielectric 410 may affect the capacitance of the variable capacitor 213. For example, the capacitance (C) of the variable capacitor 213 can be calculated by Equation 1 below.

In Equation 1, C is the capacitance, d is the distance between the first electrode and the second electrode, may be the dielectric constant of the dielectric 410, and A may be the area where the first electrode and the second electrode overlap. In one example of the present disclosure, A may be the contact area between the conductive elastic body 430 and the dielectric 410. As the contact area between the conductive elastic body 430 and the dielectric 410 increases, the capacitance of the variable capacitor 213 may increase.

The pen pressure of the stylus pen 201 may be determined in response to the resonance frequency of the resonance circuit 210. The resonance frequency of the resonance circuit 210 may vary depending on the capacitance of the variable capacitor 213. The capacitance of the variable capacitor 213 may vary depending on the contact area between the conductive elastomer 430 and the dielectric 410. The contact area between the conductive elastic body 430 and the dielectric 410 may vary depending on the distance the second core 235 moves in the direction opposite to the first direction. The distance that the second core 235 moves in the direction opposite to the first direction may vary depending on the degree to which the rotating part 231 of the stylus pen 201 is rotated. According to this, the pen pressure of the stylus pen 201 may be determined depending on the degree to which the rotating part 231 of the stylus pen 201 is rotated.

FIG. 5 is a block diagram 500 showing the configuration of an electronic device 101 according to an example.

Referring to FIG. 5 , the electronic device 101 according to one example may include a display panel 120, a digitizer pad 130, a digitizer pad controller 135, a memory 140, and a processor 150. .

The display panel 120 may output a graphic object (or graphic element) including visual information, for example, text, image, or video, by the processor 150.

The digitizer pad 130 may generate an electromagnetic field by alternating current provided by the digitizer pad controller 135. For example, when the stylus pen 201 approaches or contacts the digitizer pad 130, an electromagnetic induction phenomenon may occur. When the stylus pen 201 approaches or contacts the digitizer pad 130, the resonance circuit 210 of the stylus pen 201 may generate current. The resonance circuit 210 can generate a magnetic field by current.

The digitizer pad controller 135 may provide alternating current to the digitizer pad 130. The digitizer pad controller 135 can detect the magnetic field provided from the stylus pen 201 to the digitizer pad 130. For example, the digitizer pad controller 135 may detect the position by scanning the strength of the magnetic field applied to the digitizer pad 130 over the entire area. The digitizer pad controller 135 may provide (or transfer) the detected position to the processor 150. The detected location may be provided to the processor 140 as coordinate information.

For example, the digitizer pad controller 135 may detect (or identify) the frequency of the magnetic field applied to the digitizer pad 130. The frequency of the magnetic field detected by the digitizer pad controller 135 may be the resonance frequency of the resonance circuit 210 of the stylus pen 201. The digitizer pad controller 135 may provide the frequency of the detected magnetic field to the processor 150.

For example, the digitizer pad controller 135 may determine the pen pressure of the stylus pen 201 corresponding to the frequency of the detected magnetic field. The digitizer pad controller 135 may provide the determined pen pressure information to the processor 150.

Memory 140 may store one or more instructions executed by processor 150. The memory 140 may store coordinate information, frequency information, and/or pen pressure information of the stylus pen 201 provided from the digitizer pad controller 135.

The processor 150 may perform various functions of the electronic device 101 by executing one or more instructions stored in the memory 140.

The processor 150 may obtain the location (or coordinate information) where the stylus pen 201 is detected from the digitizer pad controller 135. The processor 150 may perform an operation in response to the detected location. For example, the processor 150 may display a graphic object through the display panel 120 in response to the detected location. As an example, the processor 150 may display a point corresponding to one location or a line corresponding to a plurality of consecutive locations through the display panel 120. For example, when a location corresponding to an icon displayed through the display panel 120 is detected, the processor 150 may perform an operation corresponding to selection of the icon.

The processor 150 may obtain the frequency of the magnetic field 20 applied from the stylus pen 201 to the digitizer pad 130 from the digitizer pad controller 135. The frequency may be the resonance frequency of the resonance circuit 210 of the stylus pen 201. The processor 150 may determine the pen pressure of the stylus pen 201 based on the frequency information obtained from the digitizer pad controller 135. For example, the processor 150 may determine the pen pressure of the stylus pen 201 based on pen pressure information predetermined for each frequency. For example, predetermined pen pressure information for each frequency may be stored in the memory 140. The processor 150 identifies the pen pressure corresponding to the frequency of the magnetic field 20 applied from the stylus pen 201 to the digitizer pad 130 from the pen pressure information predetermined for each frequency, and applies the identified pen pressure to the stylus pen 201. This can be determined by pen pressure.

According to one embodiment of the present disclosure, the pen pressure of the stylus pen 201 may not change depending on the degree to which the tip 222 of the stylus pen 201 is pressed. As described above with reference to FIGS. 2 to 4 , the resonance frequency of the resonance circuit 210 of the stylus pen 201 may be determined according to the degree to which the rotating portion 231 of the stylus pen 201 rotates. For example, since the pen pressure of the stylus pen 201 is determined according to the resonance frequency of the resonance circuit 210 of the stylus pen 201, the stylus pen ( 201) pen pressure can be determined. The degree to which the rotating part 231 rotates may be expressed, for example, as a rotation angle. For example, the rotating part 231 may rotate by rotational force applied by the user. For example, the pen pressure of the stylus pen 201 may be fixed in response to the degree to which the user rotates the rotating unit 231. Fixed pen pressure of the stylus pen 201 may mean that the same pen pressure is identified no matter when a user uses it or which user uses it. For example, unless the user adjusts the degree to which the rotating part 231 is rotated, the pen pressure of the stylus pen 201 may be fixed.

The processor 150 may identify the stylus pen 201 based on the pen pressure determined for the stylus pen 201. For example, the processor 150 may assign the ID of the stylus pen 201 to the pen pressure determined for the stylus pen 201.

The processor 150 may identify a plurality of stylus pens. For example, the processor 150 may detect a first frequency, which is the frequency of a magnetic field signal generated by a first stylus pen. The processor 150 may determine the first pen pressure, which is the pen pressure corresponding to the first frequency, as the pen pressure of the first stylus pen. The processor 150 may assign the ID of the first stylus pen to the pen pressure of the first stylus pen. For example, the processor 150 may assign an ID of 'pen 001' to the first pen pressure.

For example, the processor 150 may detect a second frequency, which is the frequency of a magnetic field signal generated by a second stylus pen that is different from the first stylus pen. The second frequency may be different from the first frequency. The processor 150 may determine the second pen pressure, which is the pen pressure corresponding to the second frequency, as the pen pressure of the first stylus pen. The second pen pressure may be different from the first pen pressure. The processor 150 may assign the ID of the second stylus pen to the pen pressure of the second stylus pen. For example, the processor 150 may assign an ID of 'pen 002' to the second pen pressure.

The above-described example is a case where the processor 150 identifies two pens, but the present invention is not limited to this, and the processor 150 can identify more pens.

The processor 150 may define (or set) an operation corresponding to each of one or more stylus pens. For example, the processor 150 may define operations according to the pen ID. For example, the operation may include displaying a line with a specified thickness and/or a specified color.

The processor 150 may receive a user input defining an operation corresponding to the pen ID. For example, the processor 150 may receive a user input for entering setting information for the pen in response to the pen ID. Setting information about the pen may include the thickness and/or color of the line output by pen input. The processor 150 may store setting information for the input pen corresponding to the pen ID. For example, the processor 150 may be set to display a line with a first designated thickness and/or a first designated color when an input of writing or drawing using a stylus pen is received for 'pen 001'. For example, the processor 150 may set 'pen 002' to display a line with a second designated thickness and/or a second designated color when an input of writing or drawing using a stylus pen is received. For example, the first specified thickness may be different from the second specified thickness. For example, the first designated color may be different from the second designated color.

In the above example, the setting information for the pen is the thickness and color of the line by pen input, but is not limited thereto. As an example, setting information about the pen may include setting information about a line generated by pen input. Setting information about a line may include, for example, line thickness, color, type, contrast, and/or transparency. As an example, setting information about the pen may include the mode of the pen (eg, writing mode or eraser mode). As an example, setting information about the pen may include a designated operation (eg, an operation to display a graphic object (eg, an icon or text)) performed in response to a designated stroke or stroke sequence.

For example, the processor 150 may store setting information for pens for each pen ID. For example, setting information for pens for each pen ID may be stored in the memory 140. When input is performed by the stylus pen 201, the processor 150 produces output corresponding to the pen input according to setting information corresponding to the ID of the identified stylus pen 201, without going through a separate pen setting procedure. It can be done.

For example, the electronic device 101 may further include other components in addition to those shown in FIG. 5 . For example, the electronic device 101 may further include a touch panel and a touch panel controller. For example, the touch panel may be stacked on the display panel 120. The touch panel may be a capacitive touch panel. The touch panel controller may be a capacitive touch panel controller. The capacitive touch panel can form an electric field for touch detection by receiving voltage from the capacitive touch panel controller. For example, the capacitive touch panel may acquire an amount of charge (or a change in capacitance) that varies depending on the approach or contact of a conductive object (eg, a finger or a conductive element provided in the stylus pen 201). The capacitive touch panel controller may detect (or identify) the touch position of the stylus pen 201 based on the amount of charge acquired from the capacitive touch panel. The capacitive touch panel controller may provide the touch position of the stylus pen 201 to the processor 150. The touch location may be provided as coordinate information, for example.

The processor 150 may receive a touch input using the user's finger or stylus pen 201 through the touch panel. The processor 150 may perform an operation corresponding to a touch input. For example, the processor 150 may receive a touch input for entering setting information for the pen in response to the pen ID. In response to a touch input, the processor 150 may store setting information for the input pen corresponding to the pen ID.

The processor 150 may identify whether the stylus pen 201 is hovering or touching. Hovering may mean being located within a specified distance in a non-contact state. As an example, the touch panel controller may identify whether the stylus pen 201 is hovering or touching based on the change in capacitance of the touch panel. As an example, the touch panel controller may identify whether the stylus pen 201 is hovering or touching depending on a value (eg, current value or voltage value) detected through the touch panel. The touch panel controller may provide (or transmit) information about whether the stylus pen 201 is hovering or touching to the processor 150 . The processor 150 may obtain information about whether the stylus pen 201 is hovering or touching from the touch panel controller. The processor 150 may identify whether the stylus pen 201 is hovering or touching based on information obtained from the touch panel controller.

The processor 150 may define (or set) operations corresponding to each of the hovering input and contact input (or touch input) in response to the pen ID of the stylus pen 201. For example, the processor 150 may define operations corresponding to hovering input and touch input differently for the same pen ID. For example, the processor 150 may receive a user input for entering setting information for the pen corresponding to each hovering input and contact input for each pen ID. The processor 150 may store setting information for the pen input corresponding to each hovering input and contact input for each pen ID.

The processor 150 may identify whether the push button of the stylus pen 201 has been pressed. For example, the resonance frequency of the resonance circuit 210 of the stylus pen 201 may vary depending on whether the push button of the stylus pen 201 is pressed. For example, the processor 150 may adjust the pen pressure corresponding to the frequency detected when the push button of the stylus pen 201 is pressed to the pen pressure corresponding to the frequency detected when the push button of the stylus pen 201 is not pressed. A pen ID identical to the assigned pen ID can be assigned.

The processor 150 may define (or set) an operation corresponding to a state in which the push button of the stylus pen 201 is pressed in response to the pen ID of the stylus pen 201. An operation corresponding to a state in which the push button of the stylus pen 201 is pressed may be, for example, an operation of displaying a designated menu. For example, the processor 150 may define different operations corresponding to a state in which the push button of the stylus pen 201 is pressed and a state in which the push button is not pressed for the same pen ID. For example, the processor 150 may receive a user input for entering setting information for the pen corresponding to the state in which the push button of the stylus pen 201 is pressed for each pen ID. The processor 150 may store setting information for the pen input corresponding to the state in which the push button of the stylus pen 201 is pressed for each pen ID. For example, the processor 150 can be set to display a menu for adjusting the thickness of the line when the push button for 'pen 001' is pressed. For example, the processor 150 can be set to display a menu for adjusting the brightness of the line when the push button for 'pen 002' is pressed.

The processor 150 may define (or set) an operation corresponding to a combination of hovering input or contact input and whether the push button is pressed in response to the pen ID of the stylus pen 201. For example, the processor 150 may perform an operation corresponding to an input of pressing a push button during a hovering input of the stylus pen 201 and an operation corresponding to an input of pressing a push button during a touch input of the stylus pen 201 to the pen ID. It can be defined accordingly. For example, the processor 150 may perform an operation corresponding to an input of pressing a push button during a hovering input of the stylus pen 201 and an input of pressing a push button during a touch input of the stylus pen 201 for the same pen ID. Actions can be defined differently. For example, the processor 150 receives a user input for entering setting information for the pen corresponding to an input of pressing a push button during a hovering input of the stylus pen 201 and an input of pressing a push button during a touch input for each pen ID. You can receive it. The processor 150 may store setting information for the pen input corresponding to an input of pressing a push button during a hovering input of the stylus pen 201 and an input of pressing a push button during a touch input for each pen ID.

FIG. 6 is a flowchart 600 showing the operation of the electronic device 101 according to an example. For example, operations of the electronic device 101, which will be described later, may be performed by the processor 150.

In operation 601, the electronic device 101 may acquire the frequency of the magnetic field applied to the digitizer pad 130 due to electromagnetic induction. As the stylus pen 201 approaches the digitizer pad 130, the electronic device 101 may obtain the frequency of the magnetic field applied to the digitizer pad 130 due to electromagnetic induction from the digitizer pad controller 135. The frequency of the magnetic field may be the resonance frequency of the resonance circuit 210 of the stylus pen 201.

The resonance frequency may be determined based on the capacitance of the variable capacitor 213 of the resonance circuit 210. For example, the capacitance of the variable capacitor 213 of the resonance circuit 210 may vary depending on the degree to which the rotating part 231 disposed at the rear end of the stylus pen 210 is rotated. For example, the resonance frequency may be determined according to the degree to which the rotating part 231 disposed at the rear end of the stylus pen 210 is rotated. For example, the resonance frequency may be determined as one frequency corresponding to the degree to which the rotating part 231 is rotated. For example, the resonance frequency may be fixed to a frequency corresponding to the degree to which the rotating part 231 is rotated. For example, the degree to which the rotating part 231 rotates can be expressed as a rotation angle. For example, when the rotating part 231 is rotated 30 degrees, the resonance frequency may be determined as the first frequency. When the rotating part 231 is rotated by 60 degrees, the resonance frequency may be determined as the second frequency. The second frequency may be different from the first frequency.

In operation 603, the electronic device 101 may determine the first pen pressure corresponding to the frequency as the pen pressure of the stylus pen 201. For example, the electronic device 101 may identify the first pen pressure corresponding to the frequency obtained in operation 601 from predetermined pen pressure information for each frequency stored in the memory 140. The electronic device 101 may determine the identified first pen pressure as the pen pressure of the stylus pen 201.

In operation 605, the electronic device 101 may identify the stylus pen 201 according to the determined pen pressure. For example, the electronic device 101 may assign the ID of the stylus pen 201 to the first pen pressure determined as the pen pressure of the stylus pen 201. The electronic device 101 may recognize that input using the stylus pen 201 is performed when the first pen pressure is detected at another time. For example, the electronic device 101 may identify the stylus pen according to the pen pressure, based on the ID assigned to the pen pressure.

For example, the electronic device 101 may receive a user input for entering setting information for the identified stylus pen. For example, the setting information may include an operation corresponding to input using a stylus pen. For example, the setting information may include setting information about a line output in response to an input using a stylus pen. Setting information about a line may include, for example, line thickness, color, type, contrast, and/or transparency.

For example, the electronic device 101 may store setting information corresponding to the ID assigned to the pen pressure. For example, the electronic device 101 may perform an operation corresponding to an input using a stylus pen according to setting information corresponding to the ID assigned to the pen pressure.

The above-described examples relate to a method in which the electronic device 101 determines pen pressure based on the frequency obtained while the push button of the stylus pen 201 is not pressed, and identifies the stylus pen by assigning an ID to the determined pen pressure. will be.

For example, the electronic device 101 may obtain a changed frequency from the digitizer pad controller 135 as the push button of the stylus pen 201 is pressed. The changed frequency may be a frequency changed from a frequency obtained when the push button of the stylus pen 201 is not pressed. For example, the electronic device 101 may assign the same ID to the second pen pressure corresponding to the changed frequency as the ID assigned to the first pen pressure. For example, one ID may correspond to one stylus pen 201. For example, one ID may have two or more corresponding pen pressures or frequencies.

For example, the electronic device 101 may identify whether the push button of the stylus pen 201 was pressed based on the changed frequency. For example, when a changed frequency is obtained, the electronic device 101 may identify that the push button of the stylus pen 201 has been pressed.

For example, the electronic device 101 may receive a user input for entering setting information for the pen corresponding to a state in which the push button of the stylus pen 201 is pressed. For example, the setting information may include an operation corresponding to an input of pressing a push button of a stylus pen. An action corresponding to an input of pressing a push button of a stylus pen may be, for example, an action of displaying a designated menu.

For example, the electronic device 101 may store setting information input in response to a state in which the push button of the stylus pen 201 is pressed in response to the ID assigned to the pen pressure. For example, the electronic device 101 may perform an operation corresponding to an input of pressing a push button of a stylus pen according to setting information corresponding to the ID assigned to the pen pressure.

For example, the electronic device 101 can identify whether the stylus pen 201 is hovering or touching. For example, the electronic device 101 may receive a user input for entering setting information for the pen corresponding to whether the stylus pen 201 is hovering or touching. For example, the setting information may include an action corresponding to a hovering input of a stylus pen and an action corresponding to a touch input. For example, the electronic device 101 may store setting information input in response to each of the hovering input and touch input of the stylus pen 201 in response to the ID assigned to the pen pressure. For example, the electronic device 101 may perform an operation corresponding to a hovering input or a touch input of a stylus pen, respectively, according to setting information corresponding to the ID assigned to the pen pressure.

FIG. 7 is a flowchart 700 showing the operation of the electronic device 101 according to an example. For example, operations of the electronic device 101, which will be described later, may be performed by the processor 150.

In operation 701, the electronic device 101 may acquire the first frequency of the magnetic field applied to the digitizer pad 130 due to electromagnetic induction. As the first stylus pen approaches the digitizer pad 130, the electronic device 101 may obtain the first frequency of the magnetic field applied to the digitizer pad 130 due to electromagnetic induction from the digitizer pad controller 135. . The frequency of the magnetic field may be the resonance frequency of the resonance circuit of the first stylus pen. For example, the resonance frequency may be determined as one frequency corresponding to the degree to which the rotating part of the first stylus pen is rotated. For example, the first frequency may correspond to the degree to which the rotating part of the first stylus pen is rotated.

In operation 703, the electronic device 101 may assign the ID of the first stylus pen to the first pen pressure corresponding to the first frequency. For example, the electronic device 101 may identify the first pen pressure corresponding to the first frequency from predetermined pen pressure information for each frequency stored in the memory 140. The electronic device 101 may determine the identified first pen pressure as the pen pressure of the first stylus pen.

In operation 705, the electronic device 101 may acquire a second frequency of the magnetic field applied to the digitizer pad 130 due to electromagnetic induction. As the second stylus pen approaches the digitizer pad 130, the electronic device 101 may obtain the second frequency of the magnetic field applied to the digitizer pad 130 due to electromagnetic induction from the digitizer pad controller 135. . The frequency of the magnetic field may be the resonance frequency of the resonance circuit of the second stylus pen. For example, the resonance frequency may be determined as one frequency corresponding to the degree to which the rotating part of the second stylus pen is rotated. For example, the second frequency may correspond to the degree to which the rotating part of the second stylus pen is rotated. The second frequency may be different from the first frequency.

In operation 707, the electronic device 101 may assign the ID of the second stylus pen to the second pen pressure corresponding to the second frequency. For example, the electronic device 101 may identify the second pen pressure corresponding to the second frequency from predetermined pen pressure information for each frequency stored in the memory 140. The electronic device 101 may determine the identified second pen pressure as the pen pressure of the second stylus pen. The second pen pressure may be different from the first pen pressure.

In operation 709, the electronic device 101 may store setting information about the pen in response to the ID of the stylus pen. For example, the electronic device 101 may receive a user input for entering setting information for the first stylus pen. The electronic device 101 may receive a user input for entering setting information for the second stylus pen. The electronic device 101 may store setting information for each stylus pen in correspondence with the IDs of the first stylus pen and the second stylus pen. For example, the setting information may include an operation corresponding to input using each stylus pen. For example, the setting information may include setting information about lines output in response to input using each stylus pen. Setting information about a line may include, for example, line thickness, color, type, contrast, and/or transparency.

For example, setting information corresponding to the ID of the first stylus pen may be the first operation. Setting information corresponding to the ID of the second stylus pen may be the second operation. For example, the electronic device 101 may perform a first operation corresponding to an input using the first stylus pen according to setting information corresponding to the ID of the first stylus pen. The electronic device 101 may perform a second operation corresponding to an input using the second stylus pen according to setting information corresponding to the ID of the second stylus pen.

As an example, the first operation may be an operation of displaying a line with a first designated thickness and/or a first designated color. For example, the first specified thickness may be different from the second specified thickness. For example, the first designated color may be different from the second designated color.

For example, the first operation and the second operation may be different from each other. For example, the first operation is a writing mode operation and may be an operation of writing or drawing. For example, the second operation is an eraser mode operation and may be an operation for deleting a handwritten or drawn graphic object.

For example, the electronic device 101 may obtain the third frequency from the digitizer pad controller 135 as the push button of the first stylus pen is pressed. The third frequency may be different from the first frequency of operation 701. For example, the electronic device 101 may assign the same ID to the third pen pressure corresponding to the third frequency as the ID assigned to the first pen pressure corresponding to the first frequency.

For example, the electronic device 101 may obtain the fourth frequency from the digitizer pad controller 135 as the push button of the second stylus pen is pressed. The fourth frequency may be different from the second frequency of operation 703. For example, the electronic device 101 may assign the same ID to the fourth pen pressure corresponding to the fourth frequency as the ID assigned to the second pen pressure corresponding to the second frequency.

For example, when the third frequency is obtained, the electronic device 101 may identify that the push button of the first stylus pen has been pressed. For example, when the fourth frequency is obtained, the electronic device 101 may identify that the push button of the second stylus pen has been pressed.

For example, the electronic device 101 may receive a user input for entering setting information for the pen corresponding to a state in which the push button of the stylus pen 201 is pressed. For example, the setting information may include an operation corresponding to an input of pressing a push button of a stylus pen. An action corresponding to an input of pressing a push button of a stylus pen may be, for example, an action of displaying a designated menu.

As an example, the setting information corresponding to the input of pressing the push button of the first stylus pen may be an operation of displaying a first designated menu (eg, a menu for adjusting the thickness of a line). Setting information corresponding to the input of pressing the push button of the second stylus pen may be an operation of displaying a second designated menu. For example, the electronic device 101 may display a first designated menu in response to an input of pressing a push button of a first stylus pen. The electronic device 101 may display a second designated menu (eg, a menu for adjusting the brightness of a line) in response to an input of pressing a push button of a second stylus pen. The second designated menu may be different from the first designated menu.

For example, the electronic device 101 can identify whether the stylus pen is hovering or touching. For example, the electronic device 101 may receive a user input for entering setting information for the pen corresponding to whether the stylus pen 201 is hovering or touching. For example, the setting information may include an action corresponding to a hovering input of a stylus pen and an action corresponding to a touch input. For example, the electronic device 101 may set the operation corresponding to the hovering input of the stylus pen and the operation corresponding to the touch input of the stylus pen to be different. For example, the electronic device 101 may set the operation corresponding to the hovering input differently for each stylus pen (ID or pen pressure of the stylus pen). For example, the electronic device 101 may set different operations corresponding to touch input for each stylus pen.

For example, the electronic device 101 may input a user input to input an action (action 1-H) corresponding to a hovering input of the first stylus pen and an action (action 1-T) corresponding to a touch input of the first stylus pen. can receive. The electronic device 101 may perform operation 1-H in response to the hovering input of the first stylus pen. The electronic device 101 may perform operation 1-T in response to a touch input from the first stylus pen. For example, operation 1-H may be different from operation 1-T.

For example, the electronic device 101 may input a user input to input an action (action 2-H) corresponding to a hovering input of the second stylus pen and an action (action 2-T) corresponding to a touch input of the second stylus pen. can receive. The electronic device 101 may perform operation 2-H in response to the hovering input of the second stylus pen. The electronic device 101 may perform operation 2-T in response to a touch input from the second stylus pen. For example, operation 2-H may be different from operation 2-T. For example, operation 2-H may be different from operation 1-H. For example, operation 2-T may be different from operation 1-T.

For example, the electronic device 101 may receive a user input of entering setting information for the pen corresponding to an input of pressing a push button during a hovering input of a stylus pen or an input of pressing a push button during a touch input. For example, the electronic device 101 may set an operation corresponding to an input of pressing a push button during a hovering input of a stylus pen and an operation corresponding to an input of pressing a push button during a touch input of a stylus pen to be different. For example, the electronic device 101 may set an operation corresponding to an input of pressing a push button during a hovering input differently for each stylus pen (ID or pen pressure of the stylus pen). For example, the electronic device 101 may set the operation corresponding to the input of pressing a push button during touch input differently for each stylus pen (ID or pen pressure of the stylus pen).

For example, the electronic device 101 operates (action 1-H') corresponding to an input of pressing a push button during a hovering input of a first stylus pen and an input of pressing a push button during a touch input of a first stylus pen. User input for entering an action (action 1-T') can be received. The electronic device 101 may perform operation 1-H' in response to an input of pressing a push button during a hovering input of the first stylus pen. The electronic device 101 may perform operation 1-T' in response to an input of pressing a push button during a touch input of the first stylus pen. For example, operation 1-H' may be different from operation 1-T'.

For example, the electronic device 101 operates (action 2-H') corresponding to an input of pressing a push button during a hovering input of a second stylus pen and an input of pressing a push button during a touch input of a second stylus pen. User input for entering an action (action 2-T') can be received. The electronic device 101 may perform operation 2-H' in response to an input of pressing a push button during a hovering input of the second stylus pen. The electronic device 101 may perform operation 2-T' in response to an input of pressing a push button among the touch inputs of the second stylus pen. For example, operation 2-H' may be different from operation 2-T'. For example, operation 2-H' may be different from operation 1-H'. For example, operation 2-T' may be different from operation 1-T'.

FIG. 8 is a block diagram 800 of an electronic device 801 in a network environment according to an example. Electronic device 801 may be an example of electronic device 101.

Referring to FIG. 8, in the network environment 800, the electronic device 801 communicates with the electronic device 802 through a first network 898 (e.g., a short-range wireless communication network) or a second network 899. It is possible to communicate with at least one of the electronic device 804 or the server 808 through (e.g., a long-distance wireless communication network). According to one example, the electronic device 801 may communicate with the electronic device 804 through the server 808. According to one example, the electronic device 801 includes a processor 820, a memory 830, an input module 850, an audio output module 855, a display module 860, an audio module 870, and a sensor module 876. ), interface 877, connection terminal 878, haptic module 879, camera module 880, power management module 888, battery 889, communication module 890, subscriber identification module 896, Alternatively, it may include an antenna module 897. In some examples, at least one of these components (eg, the connection terminal 878) may be omitted, or one or more other components may be added to the electronic device 801. In some examples, some of these components (e.g., sensor module 876, camera module 880, or antenna module 897) may be integrated into one component (e.g., display module 860). You can.

The processor 820, for example, executes software (e.g., program 840) to operate at least one other component (e.g., hardware or software component) of the electronic device 801 connected to the processor 820. It can be controlled and various data processing or calculations can be performed. According to one example, as at least part of data processing or computation, processor 820 stores commands or data received from another component (e.g., sensor module 876 or communication module 890) in volatile memory 832. The commands or data stored in the volatile memory 832 may be stored and processed, and the resulting data may be stored in the non-volatile memory 834. According to one example, the processor 820 may be a main processor 821 (e.g., a central processing unit or an application processor) or an auxiliary processor 823 that can operate independently or together (e.g., a graphics processing unit, a neural network processing unit (NPU) : neural processing unit), image signal processor, sensor hub processor, or communication processor). For example, if the electronic device 801 includes a main processor 821 and a auxiliary processor 823, the auxiliary processor 823 may be set to use lower power than the main processor 821 or be specialized for a designated function. You can. The auxiliary processor 823 may be implemented separately from the main processor 821 or as part of it.

The auxiliary processor 823 may, for example, act on behalf of the main processor 821 while the main processor 821 is in an inactive (e.g., sleep) state, or while the main processor 821 is in an active (e.g., application execution) state. ), together with the main processor 821, at least one of the components of the electronic device 801 (e.g., the display module 860, the sensor module 876, or the communication module 890) At least some of the functions or states related to can be controlled. According to one example, coprocessor 823 (e.g., image signal processor or communication processor) may be implemented as part of another functionally related component (e.g., camera module 880 or communication module 890). . According to one example, the auxiliary processor 823 (e.g., neural network processing unit) may include a hardware structure specialized for processing artificial intelligence models. Artificial intelligence models can be created through machine learning. For example, such learning may be performed in the electronic device 801 itself on which the artificial intelligence model is performed, or may be performed through a separate server (e.g., server 808). Learning algorithms may include, for example, supervised learning, unsupervised learning, semi-supervised learning, or reinforcement learning, but It is not limited. An artificial intelligence model may include multiple artificial neural network layers. Artificial neural networks include deep neural network (DNN), convolutional neural network (CNN), recurrent neural network (RNN), restricted boltzmann machine (RBM), belief deep network (DBN), bidirectional recurrent deep neural network (BRDNN), It may be one of deep Q-networks or a combination of two or more of the above, but is not limited to the examples described above. In addition to hardware structures, artificial intelligence models may additionally or alternatively include software structures.

The memory 830 may store various data used by at least one component (eg, the processor 820 or the sensor module 876) of the electronic device 801. Data may include, for example, input data or output data for software (e.g., program 840) and instructions related thereto. Memory 830 may include volatile memory 832 or non-volatile memory 834.

The program 840 may be stored as software in the memory 830 and may include, for example, an operating system 842, middleware 844, or application 846.

The input module 850 may receive commands or data to be used in a component of the electronic device 801 (e.g., the processor 820) from outside the electronic device 801 (e.g., a user). The input module 850 may include, for example, a microphone, mouse, keyboard, keys (eg, buttons), or digital pen (eg, stylus pen).

The sound output module 855 may output sound signals to the outside of the electronic device 801. The sound output module 855 may include, for example, a speaker or receiver. Speakers can be used for general purposes such as multimedia playback or recording playback. The receiver can be used to receive incoming calls. According to one example, the receiver may be implemented separately from the speaker or as part of it.

The display module 860 can visually provide information to the outside of the electronic device 801 (eg, a user). The display module 860 may include, for example, a display, a hologram device, or a projector, and a control circuit for controlling the device. According to one example, the display module 860 may include a touch sensor configured to detect a touch, or a pressure sensor configured to measure the intensity of force generated by the touch.

The audio module 870 can convert sound into an electrical signal or, conversely, convert an electrical signal into sound. According to one example, the audio module 870 acquires sound through the input module 850, the sound output module 855, or an external electronic device (e.g., electronic device) directly or wirelessly connected to the electronic device 801. Sound may be output through a device 802 (e.g., speaker or headphone).

The sensor module 876 detects the operating state (e.g., power or temperature) of the electronic device 801 or the external environmental state (e.g., user state) and generates an electrical signal or data value corresponding to the detected state. can do. According to one example, the sensor module 876 includes, 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 IR (infrared) sensor, a biometric sensor, and a temperature sensor. It may include a sensor, humidity sensor, or light sensor.

The interface 877 may support one or more designated protocols that can be used to connect the electronic device 801 directly or wirelessly with an external electronic device (eg, the electronic device 802). According to one example, the interface 877 may include, for example, a high definition multimedia interface (HDMI), a universal serial bus (USB) interface, an SD card interface, or an audio interface.

The connection terminal 878 may include a connector through which the electronic device 801 can be physically connected to an external electronic device (eg, the electronic device 802). According to one example, the connection terminal 878 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 879 can convert electrical signals into mechanical stimulation (e.g., vibration or movement) or electrical stimulation that the user can perceive through tactile or kinesthetic senses. According to one example, the haptic module 879 may include, for example, a motor, a piezoelectric element, or an electrical stimulation device.

The camera module 880 can capture still images and moving images. According to one example, the camera module 880 may include one or more lenses, image sensors, image signal processors, or flashes.

The power management module 888 can manage power supplied to the electronic device 801. According to one example, the power management module 888 may be implemented as at least a part of, for example, a power management integrated circuit (PMIC).

Battery 889 may supply power to at least one component of electronic device 801. According to one example, the battery 889 may include, for example, a non-rechargeable primary cell, a rechargeable secondary cell, or a fuel cell.

Communication module 890 is configured to provide a direct (e.g., wired) communication channel or wireless communication channel between the electronic device 801 and an external electronic device (e.g., electronic device 802, electronic device 804, or server 808). It can support establishment and communication through established communication channels. Communication module 890 operates independently of processor 820 (e.g., an application processor) and may include one or more communication processors that support direct (e.g., wired) communication or wireless communication. According to one example, the communication module 890 may be a wireless communication module 892 (e.g., a cellular communication module, a short-range wireless communication module, or a global navigation satellite system (GNSS) communication module) or a wired communication module 894 (e.g., It may include a local area network (LAN) communication module, or a power line communication module. Among these communication modules, the corresponding communication module is a first network 898 (e.g., a short-range communication network such as Bluetooth, wireless fidelity (WiFi) direct, or infrared data association (IrDA)) or a second network 899 (e.g., legacy It may communicate with an external electronic device 804 through a telecommunication network such as a cellular network, a 5G network, a next-generation communication network, the Internet, or a computer network (e.g., LAN or WAN). These various types of communication modules may be integrated into one component (e.g., a single chip) or may be implemented as a plurality of separate components (e.g., multiple chips). The wireless communication module 892 uses subscriber information (e.g., International Mobile Subscriber Identifier (IMSI)) stored in the subscriber identification module 896 within a communication network such as the first network 898 or the second network 899. The electronic device 801 can be confirmed or authenticated.

The wireless communication module 892 may support 5G networks after 4G networks and next-generation communication technologies, for example, NR access technology (new radio access technology). NR access technology provides high-speed transmission of high-capacity data (eMBB (enhanced mobile broadband)), minimization of terminal power and access to multiple terminals (mMTC (massive machine type communications)), or high reliability and low latency (URLLC (ultra-reliable and low latency). -latency communications)) can be supported. The wireless communication module 892 may support high frequency bands (e.g., mmWave bands), for example, to achieve high data rates. The wireless communication module 892 uses various technologies to secure performance in high frequency bands, such as beamforming, massive MIMO (multiple-input and multiple-output), and full-dimensional multiplexing. It can support technologies such as input/output (FD-MIMO: full dimensional MIMO), array antenna, analog beam-forming, or large scale antenna. The wireless communication module 892 may support various requirements specified in the electronic device 801, an external electronic device (e.g., electronic device 804), or a network system (e.g., second network 899). According to one example, the wireless communication module 892 supports peak data rate (e.g., 20 Gbps or more) for realizing eMBB, loss coverage (e.g., 164 dB or less) for realizing mmTC, or U-plane latency (e.g., 164 dB or less) for realizing URLLC. : Downlink (DL) and uplink (UL) each of 0.5 ms or less, or round trip 1 ms or less) can be supported.

The antenna module 897 may transmit or receive signals or power to or from the outside (e.g., an external electronic device). According to one example, the antenna module 897 may include an antenna including a radiator made of a conductor or a conductive pattern formed on a substrate (eg, PCB). According to one example, the antenna module 897 may include a plurality of antennas (eg, an array antenna). In this case, at least one antenna suitable for the communication method used in the communication network, such as the first network 898 or the second network 899, is connected to the plurality of antennas by, for example, the communication module 890. can be selected. Signals or power may be transmitted or received between the communication module 890 and an external electronic device through the selected at least one antenna. According to some examples, other components (e.g., radio frequency integrated circuit (RFIC)) in addition to the radiator may be additionally formed as part of the antenna module 897.

According to one example, the antenna module 897 may form a mmWave antenna module. According to one example, a mmWave antenna module includes a printed circuit board, an RFIC disposed on or adjacent a first side (e.g., bottom side) of the printed circuit board and capable of supporting a designated high frequency band (e.g., mmWave band), and It may include a plurality of antennas (e.g., array antennas) disposed on or adjacent to the second side (e.g., top or side) of the printed circuit board and capable of transmitting or receiving signals in the designated high frequency band. You can.

At least some of the components are connected to each other through a communication method between peripheral devices (e.g., bus, general purpose input and output (GPIO), serial peripheral interface (SPI), or mobile industry processor interface (MIPI)) and signal ( (e.g. commands or data) can be exchanged with each other.

According to one example, commands or data may be transmitted or received between the electronic device 801 and the external electronic device 804 through the server 808 connected to the second network 899. Each of the external electronic devices 802 or 804 may be of the same or different type as the electronic device 801. According to one example, all or part of the operations performed in the electronic device 801 may be executed in one or more of the external electronic devices 802, 804, or 808. For example, when the electronic device 801 needs to perform a certain function or service automatically or in response to a request from a user or another device, the electronic device 801 may perform the function or service instead of executing the function or service on its own. Alternatively, or additionally, one or more external electronic devices may be requested to perform at least part of the function or service. One or more external electronic devices that have received the request may execute at least part of the requested function or service, or an additional function or service related to the request, and transmit the result of the execution to the electronic device 801. The electronic device 801 may process the result as is or additionally and provide it as at least part of a response to the request. For this purpose, for example, cloud computing, distributed computing, mobile edge computing (MEC), or client-server computing technology can be used. The electronic device 801 may provide an ultra-low latency service using, for example, distributed computing or mobile edge computing. In one example, the external electronic device 804 may include an Internet of Things (IoT) device. Server 808 may be an intelligent server using machine learning and/or neural networks. According to one example, an external electronic device 804 or a server 808 may be included in the second network 899. The electronic device 801 may be applied to intelligent services (e.g., smart home, smart city, smart car, or healthcare) based on 5G communication technology and IoT-related technology.

Electronic devices according to various embodiments disclosed in this document may be of various types. Electronic devices may include, for example, portable communication devices (e.g., smartphones), computer devices, portable multimedia devices, portable medical devices, cameras, wearable devices, or home appliances. Electronic devices according to embodiments of this document are not limited to the above-described devices.

The various embodiments of this document and the terms used herein are not intended to limit the technical features described in this document to specific embodiments, and should be understood to include various changes, equivalents, or replacements of the embodiments. In connection with the description of the drawings, similar reference numbers may be used for similar or related components. The singular form of a noun corresponding to an item may include one or more of the above items, unless the relevant context clearly indicates otherwise. As used herein, “A or B”, “at least one of A and B”, “at least one of A or B”, “A, B or C”, “at least one of A, B and C”, and “A Each of phrases such as “at least one of , B, or C” may include any one of the items listed together in the corresponding phrase, or any possible combination thereof. Terms such as "first", "second", or "first" or "second" may be used simply to distinguish one component from another, and to refer to that component in other respects (e.g., importance or order) is not limited. One (e.g., first) component is said to be “coupled” or “connected” to another (e.g., second) component, with or without the terms “functionally” or “communicatively.” When mentioned, it means that any of the components can be connected to the other components directly (e.g. wired), wirelessly, or through a third component.

The term “module” used in various embodiments of this document may include a unit implemented in hardware, software, or firmware, and is interchangeable with terms such as logic, logic block, component, or circuit, for example. It can be used as A module may be an integrated part or a minimum unit of the parts or a part thereof that performs one or more functions. For example, a module may be implemented in the form of an application-specific integrated circuit (ASIC).

Various embodiments of the present document are one or more instructions stored in a storage medium (e.g., built-in memory 836 or external memory 838) that can be read by a machine (e.g., electronic device 801). It may be implemented as software (e.g., program 840) including these. For example, a processor (e.g., processor 820) of a device (e.g., electronic device 801) may call at least one command among one or more commands stored from a storage medium and execute it. This allows the device to be operated to perform at least one function according to the at least one instruction called. The one or more instructions may include code generated by a compiler or code that can be executed by an interpreter. A storage medium that can be read by a device may be provided in the form of a non-transitory storage medium. Here, 'non-transitory' only means that the storage medium is a tangible device and does not contain signals (e.g. electromagnetic waves), and this term refers to cases where data is semi-permanently stored in the storage medium. There is no distinction between temporary storage cases.

According to one embodiment, methods according to various embodiments disclosed in this document may be included and provided in a computer program product. Computer program products are commodities and can be traded between sellers and buyers. The computer program product may be distributed in the form of a machine-readable storage medium (e.g. compact disc read only memory (CD-ROM)) or through an application store (e.g. Play Store™) or on two user devices (e.g. It can be distributed (e.g. downloaded or uploaded) directly between smart phones) or online. In the case of online distribution, at least a portion of the computer program product may be at least temporarily stored or temporarily created in a machine-readable storage medium, such as the memory of a manufacturer's server, an application store's server, or a relay server.

According to various embodiments, each component (e.g., module or program) of the above-described components may include a single or plural entity, and some of the plurality of entities may be separately placed in other components. there is. According to various embodiments, one or more of the components or operations described above may be omitted, or one or more other components or operations may be added. Alternatively or additionally, multiple components (eg, modules or programs) may be integrated into a single component. In this case, the integrated component may perform one or more functions of each component of the plurality of components in the same or similar manner as those performed by the corresponding component of the plurality of components prior to the integration. . According to various embodiments, operations performed by a module, program, or other component may be executed sequentially, in parallel, iteratively, or heuristically, or one or more of the operations may be executed in a different order, or omitted. Alternatively, one or more other operations may be added.

For example, a stylus pen may provide a pen pressure ranging from 0 to 4096. For example, when pen pressure is determined by the degree to which the tip, which is the front part of a stylus pen, is pressed, it is difficult for the user to keep the strength of pressing the tip constant, so the pen pressure detected by the electronic device ranges from 0 to 4096. It may be difficult to maintain a constant value.

For example, a stylus pen can change its resonance frequency by changing the capacitance of a variable capacitor of a resonance circuit provided therein according to the degree to which the tip is pressed. For example, an electronic device may only detect pen pressure differently depending on a change in resonance frequency, but may not be able to distinguish and recognize a plurality of stylus pens.

The present disclosure seeks to provide a stylus pen capable of adjusting and fixing pen pressure in the stylus pen itself, an electronic device using the stylus pen as an input device, and a method of operating the same.

The present disclosure seeks to provide a stylus pen that allows stylus pens to be distinguished by different pen pressures by fixing the pen pressure for each stylus pen, an electronic device using the stylus pen as an input device, and a method of operating the same.

The present disclosure provides a stylus pen that does not require a separate setting process each time each pen is used by defining (or setting) functions for each of a plurality of distinguishable stylus pens, an electronic device using the same as an input device, and a method of operating the same. We would like to provide

According to an embodiment of the present disclosure, the electronic device 101;801 includes a display panel 120;860, a digitizer pad 130;860, a digitizer pad controller 135;860, a memory 140;830, and a processor 150;820. The memory, when executed by the processor, causes the electronic device to determine, from the digitizer pad controller, the frequency of a magnetic field applied to the digitizer pad due to electromagnetic induction as the stylus pen 201 approaches the digitizer pad. One or more instructions that allow acquisition can be stored. When executed by the processor, the instructions may cause the electronic device to determine the first pen pressure corresponding to the frequency as the pen pressure of the stylus pen. When executed by the processor, the instructions may cause the electronic device to identify the stylus pen according to the determined pen pressure. According to one embodiment, by fixing the pen pressure for each stylus pen, there may be various effects, including the effect of allowing stylus pens to be distinguished by different pen pressures.

According to an embodiment of the present disclosure, the memory may store predetermined pen pressure information for each frequency. When executed by the processor, the instructions may cause the electronic device to identify a first pen pressure corresponding to the obtained frequency from predetermined pen pressure information for each stored frequency.

According to an embodiment of the present disclosure, the frequency may be a resonance frequency of a resonance circuit of the stylus pen. The resonance circuit may include a variable capacitor whose capacitance varies depending on the degree to which the rotating part disposed at the rear end of the stylus pen is rotated. The resonance frequency may be determined based on the capacitance of the variable capacitor. According to one embodiment, there may be various effects, including the effect of adjusting and fixing pen pressure in the stylus pen itself.

According to an embodiment of the present disclosure, when executed by the processor, the instructions may cause the electronic device to assign the ID of the stylus pen to the first pen pressure. According to one embodiment, there may be various effects, including an effect that allows stylus pens to be distinguished based on a fixed pen pressure for each stylus pen.

According to one embodiment of the present disclosure, when executed by the processor, the instructions may cause the electronic device to receive a user input for entering setting information for the identified stylus pen. When executed by the processor, the instructions may cause the electronic device to store the setting information corresponding to the ID. According to one embodiment, by defining (or setting) functions for each of a plurality of distinguishable stylus pens, there may be various effects, including the effect of not having to go through a separate setting process each time the pen is used.

According to one embodiment of the present disclosure, the instructions, when executed by the processor, may cause the electronic device to obtain a changed frequency from the digitizer pad controller as a push button of the stylus pen is pressed. When executed by the processor, the instructions may cause the electronic device to assign the same ID to the second pen pressure corresponding to the changed frequency as the ID assigned to the first pen pressure. According to one embodiment, there may be various effects, including an effect that allows the push button input of each of a plurality of distinguishable stylus pens to be identified.

According to an embodiment of the present disclosure, it is possible to identify whether the push button of the identified stylus pen has been pressed based on the changed frequency. When executed by the processor, the instructions may cause the electronic device to receive a user input for entering setting information for the pen corresponding to a state in which the push button of the stylus pen is pressed. When executed by the processor, the instructions may cause the electronic device to store the setting information input in response to a pressed state of the push button of the stylus pen corresponding to the ID. According to one embodiment, there may be various effects, including the effect of not having to go through a separate process of setting an operation corresponding to a push button input each time each pen is used for a plurality of distinguishable stylus pens.

According to one embodiment of the present disclosure, when the instructions are executed by the processor, the electronic device generates a magnetic field applied to the digitizer pad due to electromagnetic induction as the first stylus pen approaches the digitizer pad. The first frequency can be obtained from the digitizer pad controller. When executed by the processor, the instructions may cause the electronic device to assign the ID of the first stylus pen to the first pen pressure corresponding to the first frequency. The instructions, when executed by the processor, cause the electronic device to generate a second frequency of a magnetic field applied to the digitizer pad due to electromagnetic induction from the digitizer pad controller as a second stylus pen approaches the digitizer pad. You can obtain it. When executed by the processor, the instructions may cause the electronic device to assign the ID of the second stylus pen to the second pen pressure corresponding to the second frequency. When executed by the processor, the instructions may cause the electronic device to store setting information for each stylus pen in correspondence with the IDs of the first stylus pen and the second stylus pen. According to one embodiment, there may be various effects, including an effect that allows stylus pens to be distinguished based on a fixed pen pressure for each stylus pen. According to one embodiment, by defining functions for each of a plurality of distinct stylus pens, there is no need to go through a separate setup process each time each pen is used, and diversity and scalability of input using a plurality of pens can be provided to the user. There can be a variety of effects, including those that are present.

According to an embodiment of the present disclosure, a method of operating the electronic device (101;801) includes, as the stylus pen (201) approaches the digitizer pad (130;860), a magnetic field applied to the digitizer pad due to electromagnetic induction. It may include an operation of obtaining the frequency of from the digitizer pad controller (135; 860). The method may include determining the first pen pressure corresponding to the frequency as the pen pressure of the stylus pen. The method may include an operation of identifying the stylus pen according to the determined pen pressure.

According to one embodiment of the present disclosure, the operation of determining the pen pressure of the stylus pen includes the operation of identifying the first pen pressure corresponding to the obtained frequency from predetermined pen pressure information for each frequency stored in the memory (140; 830). It can be included.

According to an embodiment of the present disclosure, the frequency may be a resonance frequency of a resonance circuit of the stylus pen. The resonance circuit may include a variable capacitor whose capacitance varies depending on the degree to which the rotating part disposed at the rear end of the stylus pen is rotated. The resonance frequency may be determined based on the capacitance of the variable capacitor.

According to an embodiment of the present disclosure, the operation of identifying the stylus pen may include the operation of assigning an ID of the stylus pen to the first pen pressure.

According to one embodiment of the present disclosure, the method may include receiving a user input for entering setting information for the identified stylus pen. The method may include an operation of storing the setting information corresponding to the ID.

According to one embodiment of the present disclosure, the method may include an operation of obtaining a changed frequency from the digitizer pad controller as the push button of the stylus pen is pressed. The method may include an operation of assigning the same ID as the ID assigned to the first pen pressure to the second pen pressure corresponding to the changed frequency.

According to one embodiment of the present disclosure, the method may include an operation of identifying whether the push button of the identified stylus pen has been pressed based on the changed frequency. The method may include receiving a user input for inputting setting information for the pen corresponding to a state in which the push button of the stylus pen is pressed. The method may include an operation of storing the setting information input in response to a state in which the push button of the stylus pen is pressed corresponding to the ID.

According to one embodiment of the present disclosure, the method includes, as a first stylus pen approaches the digitizer pad, obtaining a first frequency of a magnetic field applied to the digitizer pad due to electromagnetic induction from the digitizer pad controller. may include. The method may include assigning the ID of the first stylus pen to the first pen pressure corresponding to the first frequency. The method may include obtaining, from the digitizer pad controller, a second frequency of a magnetic field applied to the digitizer pad due to electromagnetic induction as a second stylus pen approaches the digitizer pad. The method may include assigning an ID of the second stylus pen to a second pen pressure corresponding to the second frequency. The method may include storing setting information for each stylus pen in response to the IDs of the first stylus pen and the second stylus pen.

According to one embodiment of the present disclosure, the stylus pen 201 may include a housing 290 that is open at both ends and forms a tubular receiving space. The stylus pen may include a first core 220 including a main body portion 221 inserted into the interior through an opening in the front end of the housing and a tip 222 exposed to the outside through the opening in the front end. You can. The stylus pen may include a resonance circuit 210 accommodated inside the housing. The stylus pen may include a pen pressure adjusting unit 230 disposed at the rear end of the housing. When rotational force is applied to the pen pressure adjusting unit, the resonance frequency of the resonance circuit may be changed. According to one embodiment, there may be various effects, including the effect of providing a stylus pen capable of fixing pen pressure. According to one embodiment, there may be various effects, including the effect of providing a stylus pen that can adjust pen pressure in the pen itself.

According to one embodiment of the present disclosure, the pen pressure adjusting unit may include a second core 235 disposed inside the housing in the axial direction of the housing. The pen pressure adjusting unit may include a rotating part 231 exposed to the outside through an opening at the other end of the housing. The pen pressure adjusting unit may include a transfer unit 233 set to move the second core body forward and backward in the axial direction of the housing when a rotational force is applied to the rotation unit. The resonance frequency may change according to the forward and backward movement of the second core.

Claims (10)

In the electronic device (101;801),
display panel (120;860);
digitizer pad (130;860);
digitizer pad controller (135;860);
memory(140;830); and
Includes a processor (150;820),
When executed by the processor, the memory causes the electronic device to:
As the stylus pen 201 approaches the digitizer pad, the frequency of the magnetic field applied to the digitizer pad due to electromagnetic induction is obtained from the digitizer pad controller,
Determine the first pen pressure corresponding to the frequency as the pen pressure of the stylus pen,
An electronic device that stores one or more instructions for identifying the stylus pen according to the determined pen pressure. In claim 1,
The memory stores predetermined pen pressure information for each frequency,
When executed by the processor, the instructions cause the electronic device to:
An electronic device that identifies a first pen pressure corresponding to the acquired frequency from predetermined pen pressure information for each stored frequency. The method according to any one of claims 1 to 2,
The frequency is the resonance frequency of the resonance circuit of the stylus pen,
The resonance circuit includes a variable capacitor whose capacitance varies depending on the degree to which the rotating part disposed at the rear end of the stylus pen is rotated,
The resonant frequency is determined based on the capacitance of the variable capacitor. The method according to any one of claims 1 to 3,
When executed by the processor, the instructions cause the electronic device to:
An electronic device that assigns the ID of the stylus pen to the first pen pressure. The method according to any one of claims 1 to 4,
When executed by the processor, the instructions cause the electronic device to:
Receive user input for entering setting information for the identified stylus pen,
An electronic device that stores the setting information in response to the ID. The method according to any one of claims 1 to 5,
When executed by the processor, the instructions cause the electronic device to:
As the push button of the stylus pen is pressed, a changed frequency is obtained from the digitizer pad controller,
An electronic device that provides the same ID as the ID assigned to the first pen pressure to the second pen pressure corresponding to the changed frequency. The method according to any one of claims 1 to 6,
When executed by the processor, the instructions cause the electronic device to:
Identify whether the push button of the identified stylus pen was pressed based on the changed frequency,
Receiving a user input for entering setting information for the pen corresponding to a state in which the push button of the stylus pen is pressed,
An electronic device configured to store the setting information input in response to a state in which the push button of the stylus pen is pressed in response to the ID. The method according to any one of claims 1 to 7,
When executed by the processor, the instructions cause the electronic device to:
As the first stylus pen approaches the digitizer pad, a first frequency of a magnetic field applied to the digitizer pad due to electromagnetic induction is obtained from the digitizer pad controller,
assigning the ID of the first stylus pen to the first pen pressure corresponding to the first frequency,
As a second stylus pen approaches the digitizer pad, a second frequency of a magnetic field applied to the digitizer pad due to electromagnetic induction is obtained from the digitizer pad controller,
assigning the ID of the second stylus pen to the second pen pressure corresponding to the second frequency,
An electronic device configured to store setting information for each stylus pen in response to the IDs of the first stylus pen and the second stylus pen. In the stylus pen 201,
A housing 290 that is open at both ends and forms a tubular receiving space;
A first core 220 including a main body 221 inserted into the housing through an opening at the front end and a tip 222 exposed to the outside through an opening at the front end of the housing;
A resonance circuit 210 accommodated within the housing; and
It includes a pen pressure adjusting unit 230 disposed at the rear end of the housing,
A stylus pen in which the resonance frequency of the resonance circuit changes when rotational force is applied to the pen pressure adjusting unit. In claim 9,
The pen pressure control unit,
a second core 235 disposed inside the housing in the axial direction of the housing;
a rotating portion 231 exposed to the outside through an opening at the other end of the housing; and
When a rotational force is applied to the rotating unit, it includes a transfer unit 233 set to move the second core body forward and backward in the axial direction of the housing,
A stylus pen in which the resonance frequency changes as the second core moves forward and backward.

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