KR102264313B1 - Electronic pen and control method thereof - Google Patents

Abstract

The present invention relates to an electronic pen and a method for controlling the same, and more particularly, to an electronic pen and a method for controlling the same for reproducing a user's handwriting on a medium and providing a user's input to an input surface of an electronic device. An electronic pen according to an embodiment of the present invention includes a battery; A pattern in which a first pen nib including a writing material used for a medium and an electronic pen acquire the user's handwriting image by the first pen nib in order to acquire first position information that is position information of the electronic pen with respect to the medium sensing unit; a first pen module receiving power from the battery; The electronic device includes a second pen nib that generates at least one of a magnetic field and an electric field in order to obtain second location information that is location information of the electronic pen with respect to the electronic device, wherein the second pen module receives power from the battery. may include.

Description

Electronic pen, electronic device and control method thereof

The present invention relates to an electronic pen and a method for controlling the same, and more particularly, to an electronic pen and a method for controlling the same for reproducing a user's handwriting on a medium and providing a user's input to an input surface of an electronic device.

Recently, technologies and products capable of recognizing a user's handwriting using an electronic pen and digitizing and storing the recognized content have been commercialized. However, the development of a method for providing the recognized and digitized handwriting content to the user in a meaningful way using such an electronic pen has not yet been developed, so a method for enabling the user to more effectively utilize the digitized handwriting content has not been developed. development is required.

In particular, an attempt has been made to produce lecture materials composed of moving pictures using an electronic pen, and this is still mostly done on a computer providing a touch screen. However, content produced by directly taking notes on a computer conveys the fatigue of content creation on a digital device to users who are still accustomed to using paper, and content produced by taking notes on paper has difficulty in editing later.

Therefore, research on electronic pens that can be used in both computers and paper are being conducted.

An object of the present invention is to provide an electronic pen, an electronic device, and a control method thereof for providing a user input to a medium and a surface of the electronic device.

Another object of the present invention is to provide an electronic pen provided with at least two pen modules so as to provide a user's input to a medium and a surface of an electronic device.

Another object of the present invention is to provide an electronic pen that stores pen data including at least one of handwriting content and location information so as to be used in a medium and an electronic device.

Another object of the present invention is to provide a method for controlling an electronic pen for supplying power to at least two pen modules in order to provide a user's input to a medium and a surface of an electronic device.

Another object of the present invention is to provide a method for controlling communication between an electronic pen and an electronic device in order to provide a user input to a medium and a surface of an electronic device, and a communication unit using the same.

Another object of the present invention is to provide a method for controlling an electronic device that provides a memo function in providing a user input to a medium and a surface of an electronic device.

Another object of the present invention is to provide a method for controlling color information in providing a user's input to a medium and a surface of an electronic device.

The problem to be solved by the present invention is not limited to the above-mentioned problems, and the problems not mentioned will be clearly understood by those of ordinary skill in the art to which the present invention belongs from the present specification and the accompanying drawings. .

According to an aspect of the present invention, the first pen nib including the writing material used for the medium and the electronic pen use the first pen nib to obtain first position information that is position information of the electronic pen with respect to the medium. a first pen module including a pattern sensing unit for acquiring a user's handwriting image; a second pen module including a second pen nib for generating at least one of a magnetic field and an electric field in order for the electronic device to acquire second location information that is location information of the electronic pen with respect to the electronic device; The first pen module is disposed at a first end including a first pen nib receiving part and a light-transmitting member, and at least one end of the first end and a second end positioned in a direction opposite to the first end of the second pen The module is fixed, the main body having a hollow inside; - Here, the first pen nib is inserted and supported so that a part of the first nib is exposed in the first pen nib receiving part, and the pattern sensing part is positioned and fixed coaxially with the light-transmitting member - the first pen module and An electronic pen including a control unit generating a signal for controlling the second pen module may be provided.

According to another aspect of the present invention, a battery; A pattern in which a first pen nib including a writing material used for a medium and an electronic pen acquire the user's handwriting image by the first pen nib in order to acquire first position information that is position information of the electronic pen with respect to the medium a first pen module including a sensing unit, the first pen module receiving power from the battery; The electronic device includes a second pen nib that generates at least one of a magnetic field and an electric field in order to obtain second location information that is location information of the electronic pen with respect to the electronic device, wherein the second pen module receives power from the battery. ; The first pen module is disposed at a first end including a first pen nib receiving part, and the second pen module is fixed to a second end positioned in a direction opposite to the first end, and the first end and the first pen module are fixed to the second end. a main body in which the battery is disposed between the two ends; and controlling power supply to the first pen module to generate pen data used to reproduce the user's handwriting on the medium based on the handwriting image, and the second to generate the first electric field. An electronic pen including a controller for controlling power supply to the pen module may be provided.

According to another aspect of the present invention, the first pen nib including the writing material used for the medium and the electronic pen use the first pen nib to obtain first position information that is position information of the electronic pen with respect to the medium. a first pen module including a pattern sensing unit configured to acquire the user's handwriting image; a second pen module including a second pen nib for generating at least one of a magnetic field and an electric field in order for the electronic device to acquire second location information that is location information of the electronic pen with respect to the electronic device; The first pen module is disposed at a first end including a first pen nib receiving part, and the second pen module is fixed to at least one of the first end and a second end positioned in a direction opposite to the first end. , a main body in which the battery is disposed between the first end and the second end; and a communication unit that transmits pen data used to reproduce the user's handwriting on the medium based on the handwriting image to the electronic device.

According to another aspect of the present invention, an electronic device for acquiring second location information that is location information of an electronic pen with respect to an electronic device and receiving pen data including first location information that is location information of the electronic pen with respect to a medium A method of controlling a device, comprising: receiving memo area identification information from a first pen module including a first pen nib including a writing material used for the medium and a pattern sensing unit for acquiring a handwritten image by the first pen nib; Based on a signal received from a second pen module including a second pen nib that determines at least a portion of the handwritten image as a memo area based on the memo area identification information and generates at least one of a magnetic field and an electric field There may be provided a method of controlling an electronic device including; determining a position where the memo area is displayed.

According to another aspect of the present invention, there is provided an electronic pen capable of providing a user's input to a medium and a surface of an electronic device. a first pen module including a pattern sensing unit configured to acquire the user's handwriting image; a second pen module used in the electronic device and including a second pen nib configured to generate at least one of a magnetic field and an electric field so that the electronic device can acquire location information of the electronic pen; and a control unit transmitting information to the electronic device. and an image based on the handwriting image and first color information is displayed on the electronic device when the first pen module is used for the medium, and the position when the second pen module is used for the electronic device An image based on the information and second color information is displayed, and when the second pen module is used after the first pen module is used, the controller sets the second color information to correspond to the first color information may be provided with an electronic pen that transmits the first color information to the electronic device.

According to another aspect of the present invention, there is provided an electronic device for displaying an image by receiving a user input, the electronic device comprising: a control module for controlling the image displayed on the electronic device; and a display that provides an image to the user, wherein the control module obtains the handwriting image from a first pen module that is used for a medium and includes a pattern detection unit that obtains the handwriting image of the user to obtain the handwriting image and An image is displayed on the display based on the first color information, the position information of the second pen module is obtained based on at least one of a magnetic field and an electric field provided by the second pen module, and the position information and the second color information displays an image on the display based on the location information and third color information corresponding to the first color information on the display when the second pen module is used after the first pen module is used Thus, an electronic device for displaying an image may be provided.

According to another aspect of the present invention, in a writing system in which an image is displayed on the electronic device when a user input is provided on at least one surface of a medium and an electronic device, a control module for controlling the image displayed on the electronic device ; a first pen module including a first nib including a writing material used for the medium and a pattern sensing unit configured to acquire the user's handwriting image by the first nib; and a second pen module used in the electronic device and including a second pen nib that generates at least one of a magnetic field and an electric field so that the control module can obtain position information; wherein, when the first pen module is used for the medium, the control module acquires the handwriting image from the first pen module and sends the image to the electronic device based on the handwriting image and first color information. and displaying an image on the electronic device based on the location information and second color information when the second pen module is used in the electronic device, wherein when the first pen module is used, the first pen module A writing system may be provided that obtains the first color information from and sets the second color information to correspond to the first color information.

Solutions of the present invention are not limited to the above-described solutions, and solutions not mentioned will be clearly understood by those of ordinary skill in the art to which the present invention belongs from the present specification and the accompanying drawings. will be able

According to the present invention, it is possible to provide an electronic pen capable of providing a user's input to a medium and a surface of an electronic device, an electronic device, and a control method thereof.

According to the present invention, the user can provide the user's input to the surface of the medium and the electronic device with one electronic pen without using a separate pen.

According to the present invention, when a user uses the electronic pen, the electronic pen stores pen data including at least one of handwriting content and location information, and the user's input can be provided to the medium and the electronic device using the stored pen data.

According to the present invention, power is appropriately supplied to a plurality of pen modules included in the electronic pen, so that the electronic pen can provide a user's input to the medium and the electronic device.

According to the present invention, a user's input provided to the medium or the surface of the electronic device may be displayed through the electronic device by controlling communication between the electronic pen and the electronic device.

According to the present invention, a user can increase writing efficiency by using a memo function using a medium and an electronic device.

According to the present invention, color information is controlled as the electronic pen is used, thereby reducing the sense of heterogeneity felt by the user when providing the user's input to the medium and the surface of the electronic device.

The effects of the present invention are not limited to the above-mentioned effects, and the effects not mentioned will be clearly understood by those of ordinary skill in the art to which the present invention belongs from the present specification and the accompanying drawings.

1 is a schematic diagram for explaining a system including an electronic pen and an electronic device interworking with the electronic pen related to embodiments of the present invention.
2 is a diagram illustrating an embodiment of a medium related to embodiments of the present invention.
3 is a diagram illustrating an exemplary appearance of an electronic pen according to embodiments of the present invention.
4 is a block diagram illustrating components of an electronic pen according to embodiments of the present invention.
5 is a diagram illustrating an exemplary appearance of an electronic device according to embodiments of the present invention.
6 is a block diagram illustrating components of an electronic device according to embodiments of the present invention.
7 and 8 are diagrams exemplarily showing unit cells constituting a code pattern according to an embodiment of the present invention.
9 is a diagram for explaining a method of encoding 2-bit information in an information code according to embodiments of the present invention.
10 is a diagram for explaining a method of generating location information of an electronic pen with respect to a medium according to embodiments of the present invention.
11 is a view for explaining a state change of an electronic pen according to embodiments of the present invention.
12 is a schematic perspective view illustrating a state in which a cap provided in the electronic pen according to an embodiment of the present invention is inserted into a second end of the main body.
13 is an internal exploded view of an electronic pen according to embodiments of the present invention.
14 is a schematic perspective view showing an exploded main body of an electronic pen according to embodiments of the present invention.
15 is another internal exploded view of an electronic pen according to embodiments of the present invention.
16 is a perspective view of a substrate of an electronic pen according to embodiments of the present invention.
17 is an exploded view of a substrate of an electronic pen according to embodiments of the present invention.
18 is a schematic perspective view of a second pen module according to embodiments of the present invention.
19 is an internal exploded view of a second pen module according to embodiments of the present invention.
20 is a front view and a rear view of an electronic pen according to embodiments of the present invention.
21 is a view for explaining an embodiment of reproducing the user's handwriting in real time according to the present invention.
22 is a flowchart of a method for real-time reproduction of content written by a user according to an embodiment of the present invention.
23 is a view for explaining an embodiment of determining the location information of the electronic device of the electronic pen according to the present invention.
24 is a flowchart of a method for determining second location information of an electronic pen according to an embodiment of the present invention.
25 is a flowchart illustrating a method of determining second position information and angle information of an electronic pen according to an embodiment of the present invention.
26 is a flowchart of a method of supplying power to an electronic pen according to an embodiment of the present invention.
27 is another flowchart of a method of supplying power to an electronic pen according to an embodiment of the present invention.
28 is another flowchart of a method of supplying power to an electronic pen according to an embodiment of the present invention.
29 is a view for explaining a memo area according to embodiments of the present invention.
30 to 32 are diagrams for explaining embodiments of determining a memo area according to embodiments of the present invention.
33 to 36 are diagrams for explaining embodiments of transmitting information reflecting a memo area to a temporary storage space according to embodiments of the present invention.
37 is a diagram for explaining a method of determining a position at which a memo area is inserted according to embodiments of the present invention.
38 is a view for explaining a form in which an image reflecting a memo area is displayed based on a distance between an electronic pen and an electronic device according to embodiments of the present invention.
39 is a flowchart of a method for inserting a memo area of an electronic device according to an embodiment of the present invention.

The embodiments described in this specification are for clearly explaining the spirit of the present invention to those of ordinary skill in the art to which the present invention belongs, so the present invention is not limited by the embodiments described in this specification, and the present invention It should be construed as including modifications or variations that do not depart from the spirit of the present invention.

The terms used in the present specification are selected as widely used general terms as possible in consideration of the functions in the present invention, but they may vary depending on the intention, custom, or emergence of new technology of those of ordinary skill in the art to which the present invention belongs. can However, if a specific term is defined and used with an arbitrary meaning, the meaning of the term will be separately described. Therefore, the terms used in this specification should be interpreted based on the actual meaning of the terms and the contents of the entire specification, rather than the names of simple terms.

The drawings attached to this specification are for easy explanation of the present invention, and the shapes shown in the drawings may be exaggerated as necessary to help understand the present invention, so the present invention is not limited by the drawings.

In the present specification, when it is determined that a detailed description of a known configuration or function related to the present invention may obscure the gist of the present invention, a detailed description thereof will be omitted if necessary.

According to an aspect of the present invention, the first pen nib including the writing material used for the medium and the electronic pen use the first pen nib to obtain first position information that is position information of the electronic pen with respect to the medium. a first pen module including a pattern sensing unit for acquiring a user's handwriting image; a second pen module including a second pen nib for generating at least one of a magnetic field and an electric field in order for the electronic device to acquire second location information that is location information of the electronic pen with respect to the electronic device; The first pen module is disposed at a first end including a first pen nib receiving part and a light-transmitting member, and at least one end of the first end and a second end positioned in a direction opposite to the first end of the second pen The module is fixed, the main body having a hollow inside; - Here, the first pen nib is inserted and supported so that a part of the first nib is exposed in the first pen nib receiving part, and the pattern sensing part is positioned and fixed coaxially with the light-transmitting member - the first pen module and An electronic pen including a control unit generating a signal for controlling the second pen module may be provided.

The controller may generate pen data used to reproduce the user's handwriting on the medium based on the handwriting image.

The second pen nib may include a first electrode generating a first electric field having a first effective distance and the first electrode, and the second pen module may include a main electrode in a direction from the first electrode to the first pen nib. and a second electrode disposed to be spaced apart along the central axis of the body and generating a second electric field having a second effective distance, wherein the control unit receives angle information indicating an angle of the electronic pen with respect to the input surface of the electronic device. It is possible to generate more stylus data including

a first pressure sensor in the main body electrically connected to an unexposed end of the first pen nib to sense a first pressure applied to the first nib; and a second pressure sensor disposed in the second pen module and electrically connected to the second pen nib to sense a second pressure applied to the second nib, wherein the pen data includes: The stylus data may further include first pressure information that is information about the stylus, and the stylus data may further include second pressure information that is information about the second pressure.

The electronic pen further includes a substrate connected to the pattern sensing unit, wherein the substrate includes a first substrate disposed close to the first end of the main body to which the first pen nib is exposed, and the second substrate of the main body. It may include a second substrate disposed close to the second end.

The electronic pen may further include a battery for supplying power to the first pen module and the second pen module.

The controller may include a first controller configured to control power supply from the battery to the first pen module and a second controller configured to control power supply from the battery to the second pen module.

The first control unit may be disposed on the first substrate, and the second control unit may be disposed on the second substrate.

The electronic pen may include a cap part inserted into at least one of the first and second ends of the main body and having a predetermined inner space and a magnet to protect at least one of the first and second pen nibs; and at least one or more magnet sensors disposed on at least one of the first end and the second end to detect the magnet.

The electronic pen further includes a vibrating unit that is mounted on the main body and generates vibration when a predetermined condition is satisfied, wherein the predetermined condition detects the pressure from the first pressure sensor, but in the pattern sensing unit The handwriting image may not be acquired.

The first pen nib is spaced apart from the center of the longitudinal axis of the main body to the outer surface of the main body and inserted into the main body, and the second pen nib is the second pen module in the central direction of the longitudinal axis of the main body. By being inserted into the nib, the longitudinal axis of the first nib and the longitudinal axis of the second nib may be spaced apart from each other.

a first display, the electronic pen being disposed on one side of the main body adjacent to the first end and outputting visible light based on information of the first pen module; and a second display disposed on the other side of the main body adjacent to the second end and outputting visible light based on the information of the second pen module. It may further include at least one of.

The information on the first pen module includes first color information recognized through the first pen module, and the information on the second pen module includes a first color information recognized based on a first electric field transmitted from the second pen module. 2 may include color information.

The controller may control at least one of the first display and the second display based on the user's input.

According to another aspect of the present invention, the first pen nib including the writing material used for the medium and the electronic pen use the first pen nib to obtain first position information that is position information of the electronic pen with respect to the medium. a first pen module including a pattern sensing unit configured to acquire the user's handwritten image, the first pen module receiving power from the battery; The electronic device includes a second pen nib that generates at least one of a magnetic field and an electric field in order to obtain second location information that is location information of the electronic pen with respect to the electronic device, wherein the second pen module receives power from the battery. ; The first pen module is disposed at a first end including a first pen nib receiving part, and the second pen module is fixed to a second end positioned in a direction opposite to the first end, and the first end and the first pen module are fixed to the second end. a main body in which the battery is disposed between the two ends; and controlling power supply to the first pen module to generate pen data used to reproduce the user's handwriting on the medium based on the handwriting image, and the second to generate the first electric field. An electronic pen including a controller for controlling power supply to the pen module may be provided.

The second pen nib may include a first electrode generating a first electric field having a first effective distance and the first electrode, and the second pen module may include a main electrode in a direction from the first electrode to the first pen nib. and a second electrode that is spaced apart along the central axis of the body and generates a second electric field having a second effective distance, wherein the second electrode is electrically connected to the battery to receive power from the battery .

a first pressure sensor in the main body electrically connected to an unexposed end of the first pen nib to sense a first pressure applied to the first nib; and a second pressure sensor disposed in the second pen module and electrically connected to the second pen nib to sense a second pressure applied to the second nib, wherein the first pressure sensor and the second The pressure sensor may be electrically connected to the battery to receive power from the battery.

The controller may control supply of power from the battery to the first pen module based on the first pressure information.

The control unit is configured to, when a time from acquiring the first pressure information to acquiring the other first pressure information exceeds a first time, supply power of the battery to the first pen module for the first time It can be reduced compared to the previous power supply.

The controller may be configured to, when a time from acquiring the first pressure information to acquiring the first pressure information again exceeds a second time greater than the first time, the power of the battery to the first pen module supply can be cut off.

The control unit controls supply of power from the battery to the second pen module based on proximity information, wherein the proximity information includes second pressure information that is information about a second pressure measured by the second pressure sensor; It may include at least one of response information to the first electric field and response information to the second electric field.

The controller may be configured to reduce the amount of power supplied from the battery to the second pen module compared to the amount of power supplied before the third time when a time from acquiring the proximity information to acquiring the other proximity information exceeds a third time can do it

The controller may be configured to supply power from the battery to the second pen module for the third time and when a time from acquiring the proximity information to acquiring the other proximity information exceeds a fourth time greater than a third time. The amount of power supplied within the fourth time may be reduced.

The electronic pen is inserted into the first end of the main body to protect the first pen nib, or is inserted into the second end to protect the second pen nib, and has a predetermined internal space, and a cap portion including a magnet. ; and at least one or more magnetic sensors capable of detecting the magnet in the main body when the cap part is inserted into the main body, wherein the control unit determines whether the cap part is inserted or not detected by the magnetic sensor. Based on the power supply of the battery may be controlled.

The electronic pen may further include a binding detection sensor configured to detect a binding between the electronic pen and the electronic device, wherein the controller includes the first pen module of the battery and the first pen module of the battery based on a signal obtained from the binding detection sensor. Power supply to at least one of the 2 pen modules may be cut off.

According to another aspect of the present invention, the first pen nib including the writing material used for the medium and the electronic pen use the first pen nib to obtain first position information that is position information of the electronic pen with respect to the medium. a first pen module including a pattern sensing unit configured to acquire the user's handwriting image; a second pen module including a second pen nib for generating at least one of a magnetic field and an electric field in order for the electronic device to acquire second location information that is location information of the electronic pen with respect to the electronic device; The first pen module is disposed at a first end including a first pen nib receiving part, and the second pen module is fixed to at least one of the first end and a second end positioned in a direction opposite to the first end. , a main body in which the battery is disposed between the first end and the second end; and a communication unit configured to transmit pen data used to reproduce the user's handwriting on the medium based on the handwriting image to the electronic device.

The second pen nib may include a first electrode generating a first electric field having a first effective distance and the first electrode, and the second pen module may include a first electrode in a direction from the first electrode to the first pen nib of the main body. and a second electrode that is spaced apart along the central axis of the and generates a second electric field having a second effective distance, wherein the communication unit receives angle information indicating an angle of the electronic pen with respect to the input surface of the electronic device. The included stylus data may be further transmitted to the electronic device.

The electronic pen may include a first pressure sensor in the main body electrically connected to an unexposed end of the first pen nib to sense a first pressure applied to the first pen nib; and a second pressure sensor disposed in the second pen module and electrically connected to the second pen nib to sense a second pressure applied to the second nib, wherein the pen data includes: The stylus data may further include first pressure information that is information about the stylus, and the stylus data may further include second pressure information that is information about the second pressure.

According to another aspect of the present invention, an electronic device for acquiring second location information that is location information of an electronic pen with respect to an electronic device and receiving pen data including first location information that is location information of the electronic pen with respect to a medium A method of controlling a device, comprising: receiving memo area identification information from a first pen module including a first pen nib including a writing material used for the medium and a pattern sensing unit for acquiring a handwritten image by the first pen nib; Based on a signal received from a second pen module including a second pen nib that determines at least a portion of the handwritten image as a memo area based on the memo area identification information and generates at least one of a magnetic field and an electric field There may be provided a method of controlling an electronic device including; determining a position where the memo area is displayed.

The memo area identification information may be generated based on an input to the input unit of the electronic pen.

The memo area identification information may be generated by detecting the handwritten image through the first pen module.

The handwriting image may be a predetermined identification code.

The method of controlling the electronic device may further include transmitting, by the electronic device, information reflecting the memo area to a temporary storage space.

The memo area may be determined by further considering a signal received from the second pen module.

The memo area may be determined by further considering the pen data.

The signal received from the second pen module may include a first electric field, and a position at which the memo area is inserted may be determined based on a first electric field crossing area.

The signal received from the second pen module may further include a second electric field, and the position at which the memo area is displayed may be determined by further considering a second electric field crossing area.

The signal received from the second pen module further includes second pressure information, which is information on the pressure applied to the second pen nib, and the position at which the memo area is displayed may be determined by further considering the second pressure information. can

The method of controlling the electronic device may further include displaying a preview image reflecting the memo area based on the first electric field.

The electronic device may change the transparency of the preview image reflecting the memo area.

The method of controlling the electronic device may further include correcting the memo area based on a signal received from the second pen module.

According to another aspect of the present invention, there may be provided a recording medium recording a program for executing the control method of the electronic device.

According to another aspect of the present invention, there is provided an electronic pen capable of providing a user's input to a medium and a surface of an electronic device. a first pen module including a pattern sensing unit configured to acquire the user's handwriting image; a second pen module used in the electronic device and including a second pen nib that provides at least one of a magnetic field and an electric field so that the electronic device can acquire location information of the electronic pen; and a control unit transmitting information to the electronic device. and an image based on the handwriting image and first color information is displayed on the electronic device when the first pen module is used for the medium, and the position when the second pen module is used for the electronic device An image based on the information and second color information is displayed, and when the second pen module is used after the first pen module is used, the controller sets the second color information to correspond to the first color information may be provided with an electronic pen that transmits the first color information to the electronic device.

In the electronic pen, when the first pen module is used after the second pen module is used, the controller transmits the second color information to the electronic device so that the first color information is set corresponding to the second color information. can be forwarded to

The electronic pen may include a memory storing color information, and the controller may store at least one of the first color information and the second color information in the memory.

The controller may acquire the second color information from the electronic device when the second pen module is used.

According to another aspect of the present invention, there is provided an electronic device for displaying an image by receiving a user input, the electronic device comprising: a control module for controlling the image displayed on the electronic device; and a display that provides an image to the user, wherein the control module obtains the handwriting image from a first pen module that is used for a medium and includes a pattern detection unit that obtains the handwriting image of the user to obtain the handwriting image and An image is displayed on the display based on the first color information, the position information of the second pen module is obtained based on at least one of a magnetic field and an electric field provided by the second pen module, and the position information and the second color information displays an image on the display based on the location information and third color information corresponding to the first color information on the display when the second pen module is used after the first pen module is used Thus, an electronic device for displaying an image may be provided.

The third color information may be the same as the first color information or may be included in a similar color range of the first color information.

When the first pen module is used after the second pen module is used, the electronic device may display an image on the display based on the handwritten image and fourth color information corresponding to the second color information. .

The first pen module may include a communication unit, and the control module may obtain the first color information from the communication unit when the first pen module is used.

The electronic device may include a memory module that stores at least one of the first color information and the second color information.

According to another aspect of the present invention, in a writing system in which an image is displayed on the electronic device when a user input is provided on at least one surface of a medium and an electronic device, a control module for controlling the image displayed on the electronic device ; a first pen module including a first nib including a writing material used for the medium and a pattern sensing unit configured to acquire the user's handwriting image by the first nib; and a second pen module used in the electronic device and including a second pen nib that provides at least one of a magnetic field and an electric field so that the control module can acquire location information; wherein, when the first pen module is used for the medium, the control module acquires the handwriting image from the first pen module and sends the image to the electronic device based on the handwriting image and first color information. and displaying an image on the electronic device based on the location information and second color information when the second pen module is used in the electronic device, wherein when the first pen module is used, the first pen module A writing system may be provided that obtains the first color information from and sets the second color information to correspond to the first color information.

First, an electronic pen and an electronic device interlocking with the electronic pen related to some embodiments of the present invention will be briefly described in an operating environment, and the electronic pen and electronic device interlocking with the electronic pen according to the embodiments of the present invention , a method for controlling an electronic pen and a method for controlling an electronic device will be described in detail.

1 is a schematic diagram for explaining a system including an electronic pen and an electronic device interlocking with the electronic pen related to embodiments of the present invention.

The system may include at least one medium 2000 , at least one electronic pen 1000 , at least one electronic device 3000 , and at least one server 4000 .

The medium 2000 provides a surface or space for a user to write a desired item using the electronic pen 1000 according to embodiments of the present invention.

The medium 2000 may be provided with various materials. According to an example, the medium 2000 may be provided as paper. According to another example, the medium 2000 may be made of plastic. According to another example, the medium 2000 may be made of metal.

The medium 2000 is an electronic pen 1000 in which the electronic pen 1000 according to an embodiment of the present invention is implemented using an optical component including a camera module 121 and the like. It may have a code pattern that can be recognized by The code pattern may be provided to the medium 2000 through a method such as printing. A detailed description of the code pattern will be provided later.

Meanwhile, even if the electronic pen 1000 uses an optical component, the medium 2000 may not have a code pattern. For example, when the electronic pen 1000 is used for the medium 2000, when irradiating light and detecting reflected light to obtain position information, the medium 2000 does not necessarily have a code pattern and furthermore, an arbitrary object. may be medium (2000).

2 is a diagram illustrating an embodiment of a medium related to embodiments of the present invention.

Referring to FIG. 2 , a notebook or book may include a plurality of mediums 2000 . As shown in FIG. 2 , according to some embodiments of the present invention, at least a portion of pages constituting a note or book may be implemented as a medium 2000 according to embodiments of the present invention. For example, when the electronic pen 1000 is implemented as the optical electronic pen 1000, at least a portion of pages constituting a note or book may be provided with code patterns according to embodiments of the present invention. .

Meanwhile, only a region of at least a portion of a whole surface of a page constituting a note or book may be implemented as the medium 2000 according to embodiments of the present invention. For example, when the electronic pen 1000 is implemented as the optical electronic pen 1000, the code pattern is not provided on the whole surface of pages constituting the note or book, but only in a partial area. A pattern may be provided.

Meanwhile, although not shown in the drawings, the medium 2000 according to embodiments of the present invention may be implemented in the form of a blackboard or the like. That is, the medium 2000 according to embodiments of the present invention may be implemented in the form of a blackboard (electronic blackboard) provided with a code pattern.

Meanwhile, as the electronic pen 1000 is used, the medium 2000 may be implemented as an arbitrary object that can give a user a feeling of writing by applying friction to the electronic pen 1000 . For example, not only paper and notebooks, but also floors, desks, walls, glass, and parts of human or animal bodies may be medium 2000 .

On the other hand, the medium 2000 may be omitted from the system. For example, when the electronic pen 1000 detects the movement of the electronic pen 1000 with a sensor internally to obtain location information, the medium 2000 may be omitted.

The electronic pen 1000 may acquire first location information that is location information of the electronic pen 1000 with respect to the medium 2000 . Here, as the pattern sensing unit 120 of the electronic pen 1000 acquires the code pattern provided from the medium 2000 , the electronic pen 1000 may acquire the first location information. Alternatively, as the pattern detecting unit 120 of the electronic pen 1000 detects a change in the relative position of the electronic pen 1000 with respect to the medium 2000 , the electronic pen 1000 may acquire first position information. have.

The electronic pen 1000 may generate pen data by sensing information about the user's handwriting. The pen data may be used to generate stroke data and the like for the user's handwriting. A detailed description of the pen data will be provided later.

The electronic pen 1000 may generate a first electric field having a first effective distance. Here, based on the first electric field, the electronic device 3000 may acquire second location information that is location information of the electronic pen 1000 with respect to the electronic device 3000 .

The electronic pen 1000 may provide stylus data to the electronic device 3000 through an input surface of the electronic device 3000 . The stylus data may include angle information of the electronic pen 1000 with respect to the input surface of the electronic device 3000 and information on pressure applied to the electronic device 3000 by the electronic pen 1000 . In addition, the stylus data may include an electrical signal required for the electronic device 3000 to acquire location information of the electronic pen 1000 . A detailed description of the stylus data will be provided later.

The electronic device 3000 may receive and interpret pen data from the electronic pen 1000 . Stroke data may be generated according to interpretation of the pen data. The stroke data is data in which the trace of the medium 2000 of the electronic pen 1000 is bundled in stroke units. Here, the stroke refers to a line drawn by the pen on the writing surface after the pen contacts the writing surface until the pen is separated from the writing surface, and may also be referred to as a 'stroke'. That is, 'A' is generally composed of three strokes, 'B' is generally composed of two strokes, 'C' is generally composed of one stroke, and 'D' is generally composed of two strokes. As such, the 'E' is generally composed of three strokes.

The electronic device 3000 may determine location information of the electronic device 3000 of the electronic pen 1000 based on the electric field provided from the electronic pen 1000 .

The electronic device 3000 may receive and interpret stylus data from the electronic pen 1000 . In this case, the stylus data may include angle information and pressure information of the electronic pen 1000 .

The electronic device 3000 may include a capacitive touch sensor to sense an electric field. Here, the electronic device 3000 senses the first electric field generated by the first electrode 220 of the electronic pen 1000 and the second electric field generated by the second electrode 230 of the electronic pen 1000 , and the angle of the electronic pen 1000 . information can be judged.

Of course, the electronic device 3000 may acquire stylus data including angle information of the electronic pen 1000 based on the electric field provided from the electronic pen 1000 .

The electronic device 3000 may appropriately process the analyzed stroke data to reproduce and display the user's handwriting in real time according to the stroke data through a display or the like provided in the electronic device 3000 .

When the electronic pen 1000 is used by the user, the electronic device 3000 may display an image based on pen data and/or stylus data. The image displayed on the electronic device 3000 is processed by a stroke according to the user's handwriting, an image representing location information about the medium 2000 of the electronic pen 1000 or the electronic device 3000, and pen data and/or stylus data may include an image generated by

In addition, the electronic device 3000 may store stroke data generated based on the pen data in the memory 600 provided in the electronic device 3000 , and may store the stroke data in at least one of pen data and stroke data according to a user's request. processing can be performed.

The electronic device 3000 may be connected to the server 4000 through a network to transmit or receive necessary information. A detailed description of the server 4000 will be provided later.

The server 4000 may be connected to the electronic device 3000 through a network to receive or transmit necessary information.

The server 4000 may be connected to at least one electronic device 3000 to database at least one of pen data and stylus pen data received from the electronic device 3000 .

The server 4000 may be connected to at least one electronic pen 1000 to database at least one of pen data and stylus data received from the electronic pen 1000 .

The server 4000 may appropriately process the pen data stored in the database according to the request of the electronic device 3000 or the user's request.

The server 4000 may share and perform some or all of the functions of the electronic device 3000 described above. For example, the electronic device 3000 may receive pen data from the electronic pen 1000 and directly transmit the pen data to the server 4000 without performing a special processing procedure for the pen data. , the server 4000 may receive pen data and perform operations such as generating stroke data, storing the stroke data, and additionally processing the stroke data.

The medium 2000 and the electronic pen 1000 may correspond in various ways. 1 shows that one medium 2000 corresponds to one electronic pen 1000, the correspondence between the medium 2000 and the electronic pen 1000 is 1:N or N:1. It is free to respond accordingly.

Also, although one electronic pen 1000 is shown to correspond to one electronic device 3000 in FIG. 1, the correspondence between the electronic pen 1000 and the electronic device 3000 is 1:N or It is okay to respond according to the correspondence of N:1.

In addition, although a plurality of electronic devices 3000 are illustrated in FIG. 1 as being connected to one server 4000 , a system according to embodiments of the present invention may include two or more servers 4000 .

Meanwhile, in FIG. 1 , the electronic pen 1000 is shown to communicate with the electronic device 3000 , and the electronic device 3000 is shown to communicate with the electronic pen 1000 and the server 4000 . However, if necessary, the electronic pen 1000 may directly communicate with the server 4000 .

Next, the electronic pen 1000 according to embodiments of the present invention will be described.

3 is a diagram illustrating an exemplary appearance of an electronic pen according to embodiments of the present invention, and FIG. 4 is a block diagram for explaining components of an electronic pen according to embodiments of the present invention.

Referring to FIG. 3 , the electronic pen 1000 includes a first pen nib 110 including a writing material used in the medium 2000 and a first electrode 220 generating a first electric field in which the first nib 110 is located. 2 may include a pen nib 210 and a main body 300 .

The main body 300 is a component capable of supporting the first pen nib 110 by being inserted so that a part of the first nib 110 is exposed. Here, the main body 300 may function as a grip part that the user can grip by hand. In addition, the main body 300 may include components of the electronic pen 1000 such as a power supply unit 700 , a memory 600 , and a communication unit therein.

Referring to FIG. 4 , the electronic pen 1000 according to an embodiment of the present invention includes a first pen module 100 , a second pen module 200 , an input unit 400 , an output unit 900 , and a communication unit ( 500 ), a memory 600 , a power supply unit 700 , and a control unit 800 . However, since the components shown in FIG. 4 are not essential, the electronic pen 1000 having more components than the illustrated components or fewer than the illustrated components can be implemented. .

Hereinafter, each component of the electronic pen 1000 will be described.

The electronic pen 1000 may write on the medium 2000 through the first pen module 100 . Also, the electronic pen 1000 may acquire first location information through the first pen module 100 . Here, the first location information is location information of the electronic pen 1000 with respect to the medium 2000 . More specifically, the first location information is location information of the electronic pen 1000 at a specific time with respect to the medium 2000 . The first location information will be described in more detail in the operation of the electronic pen 1000 .

Meanwhile, the first position information may include at least one of rotation information of the electronic pen 1000 , acceleration information, and information about a position change according to time.

The first pen module 100 may include a first pen nib 110 and a pattern sensing unit 120 . Here, the components of the first pen module 100 may be provided physically separated from each other.

The first pen nib 110 is a component that enables writing on the medium 2000 . The first pen nib 110 is located at the first end of the first pen nib 110 and is located in the opposite direction to the first pen tip and the first end where writing is made by directly contacting the medium 2000, and the main body 300 ) may include a first pen stand 112 inserted into the first pen nib 110 to be supported. Here, the first pen stand 112 may include a writing material.

The writing material may be provided in various ways as long as it has a configuration that enables writing on the medium 2000 . According to an embodiment of the present invention, the writing material may include a ball and ink, and the ink may be oil-based, water-based, or neutral. According to another embodiment of the present invention, the writing material may be a graphite core used in a pencil.

Alternatively, according to another embodiment of the present invention, when the writing does not need to be visually displayed, the writing material may be omitted.

The first pen stand 112 may be formed of various materials as long as it supports the first pen nib 110 . According to an embodiment of the present invention, the first pen stand 112 may be plastic. According to another embodiment of the present invention, the first pen stand 112 may be made of metal.

According to an embodiment of the present invention, the first pen nib 110 may use graphite as a material. In this case, the user may not only be able to write on the medium 2000 through the first pen nib 110 , but may also provide an electric field to the input surface of the electronic device 3000 through the first pen nib 110 .

The pattern detecting unit 120 may detect a position of the electronic pen 1000 with respect to the medium 2000 . For example, the pattern detecting unit 120 may detect a code pattern in which location information for determining the location of the medium 2000 of the electronic pen 1000 is encoded. Also, for example, the pattern detecting unit 120 may detect a relative position change amount of the electronic pen 1000 with respect to the medium 2000 . To this end, the pattern detecting unit 120 includes a camera module 121 and a lighting module 122 .

The camera module 121 may acquire an image of the code pattern provided to the medium 2000 . The camera module 121 controls a partial region of the code pattern provided to the medium 2000 based on a predetermined time interval while the electronic pen 1000 moves according to the user's handwriting, etc. on the medium 2000 . image can be obtained. Accordingly, the electronic pen 1000 determines the position of the electronic pen 1000 with respect to the medium 2000 by interpreting information on unit cells included in the acquired image according to a code pattern interpretation method to be described later. It can be interpreted in the form of coordinates.

Meanwhile, the camera module 121 may acquire an image based on light reflected from the medium 2000 based on a predetermined time interval while the electronic pen 1000 moves according to a user's handwriting on the medium 2000 . . Specifically, the camera module 121 may receive light reflected according to the material or surface state of the medium 2000 to obtain a reflection pattern image for at least a partial area of the medium 2000 . Here, when the medium 2000 is irradiated with light, the reflective pattern may include a pattern that varies for each irradiation area by irregularly reflecting light according to a material of the medium 2000, an uneven surface due to a component, a foreign substance, and the like. Accordingly, the electronic pen 1000 may track the relative position change of the electronic pen 1000 by comparing and analyzing the images based on the reflected light acquired from the camera module 121 over time.

Here, the predetermined time interval may be provided in various ways. According to an example, the camera module 121 may acquire an image for the code pattern every 1/60 of a second. According to another example, the camera module 121 may acquire an image for the code pattern every 1/240 seconds. According to another example, the camera module 121 may acquire an image based on light reflected from the medium 2000 every 1/4000 second. Here, the image of the code pattern or the image based on the reflected light of the medium 2000 may be defined as a handwriting image.

The illumination module 122 may irradiate light of a predetermined specific wavelength toward the medium 2000 so that an image of the image reflection pattern for the code pattern may be obtained through the camera module 121 . The code pattern provided to the medium 2000 according to an embodiment of the present invention may be printed using an ink that absorbs infrared rays. In this case, the lighting module 122 may be well absorbed by the ink. Light of a wavelength may be irradiated to the medium 2000 . In this case, the camera module 121 may be configured to take an image in the infrared band, and for this, the camera module 121 may include an infrared filter that selectively passes only the infrared band.

According to another embodiment of the present invention, the longer the wavelength of the light irradiated from the lighting module 122, the easier it is to analyze the pattern reflected from the medium 2000, and the lighting module 122 irradiates light in the visible or infrared band can do. In this case, the camera module 121 may be configured to receive light corresponding to a wavelength band of the light irradiated by the lighting module 122 , and may include a filter that selectively passes only the corresponding wavelength band.

Through the second pen module 200 , the electronic device 3000 may acquire second location information. Here, the second location information is location information of the electronic pen 1000 with respect to the electronic device 3000 .

The second pen module 200 may include a first electrode 220 and a second pen nib 210 . Also, the second pen module 200 may further include a second electrode. Here, the components of the second pen module 200 may be physically connected to each other.

The first electrode 220 may generate a first electric field used by the electronic device 3000 to obtain location information of the electronic pen 1000 . More specifically, the first electrode 220 may generate a first electric field. Here, when the second pen nib 210 is placed on the input surface of the electronic device 3000 , the first electric field may cross the input surface. In this case, the electronic device may detect the first electric field and acquire second position information based on the position at which the first electric field is detected. Here, the second location information is a location of the electronic pen 1000 with respect to the electronic device 3000 . More specifically, the second location information may be location information of a specific point in time of the electronic pen 1000 with respect to the electronic device 3000 .

The first electrode 220 may generate a first electric field having a first effective distance. The first effective distance is a distance from the first electrode 220 to a point at which the first electric field is effectively transmitted. The first effective distance may be variously set if the electronic device 3000 can determine the movement of the first electrode 220 . According to an embodiment of the present invention, the first effective distance may be 0 cm to 3 cm. According to another embodiment of the present invention, the first effective distance may be 0 cm to 1.5 cm. A detailed description of the position determination of the electronic pen 1000 will be provided later.

The second pen nib 210 is a component that provides a first electric field to the electronic device 3000 through the input surface of the electronic device 3000 . Here, the first electrode 220 may be positioned on the second pen nib 210 . Here, the second pen nib 210 may be formed of a conductive material, and the first electric field generated by the first electrode 220 may be provided to the input surface of the electronic device 3000 through the second nib 210 .

More specifically, the first electrode 220 may be positioned at the first end of the second pen nib 210 exposed to the outside, thereby enabling interaction between the user and the electronic device 3000 . In this case, the first end of the second pen nib 210 has a sharp shape like a pen, so that the user can control the electronic pen 1000 with high precision. However, the position of the first electrode 220 is not limited to the end of the second pen nib 210 , and the first electrode 220 is located on the second pen module 200 to the input surface of the electronic device 3000 . It can be positioned without limitation, as long as it can provide a first electric field to .

Here, the electronic device 3000 acquires position information of the electronic pen 1000 with respect to the electronic device 3000 through the electronic pen 1000 in which the first electrode 220 and the second pen nib 210 are combined. can do. According to an embodiment of the present invention, the second pen nib 210 may be omitted, and an electronic pen that provides an electric field to the input surface of the electronic device 3000 through the first electrode 220 may be provided. However, even in this case, if the first electrode 220 is located at one end of the electronic pen 1000 like a pen nib of a general pen and writes in a general writing form, the first electrode 220 serves as the second pen nib 210 . function can be seen. That is, even if the first electrode 220 is used integrally with the second pen nib 210 , if the first electrode 220 functions like a pen nib of a general pen, the first electrode 220 is the first electrode 220 and the second pen nib. It can be seen that it includes two pen nibs 210 .

The user may provide an electric field to the electronic device 3000 by bringing the second pen nib 210 of the electronic pen 1000 close to the input surface of the electronic device 3000 . That is, by using the electronic pen 1000 in a method similar to the writing method of a general pen, the user's rejection of the electronic pen 1000 may be reduced.

Here, proximity to the input surface means that the second nib 210 and the input surface are in direct contact with each other, as well as that the second nib 210 and the input surface transmit the first electric field to the input surface. spaced apart by a first effective distance that can be

The second nib 210 may be formed of a material that is softer than the input surface. In this case, the second nib 210 may be formed from silicone, rubber, plastic, nylon, fluoroelastomer, conductive or dielectric foam, or any other suitable material or combination of materials.

Meanwhile, the second pen nib 210 may replace the first electrode 220 or include a resonance circuit together with the first electrode 220 . Here, the resonance circuit may include an LC resonance circuit composed of an inductor and a capacitor. The resonance circuit is a magnetic field formed from the electronic device 3000 when the electronic device 3000 operates in an Electro-Magnetic Resonance (EMR) method. can generate a current and emit it again as a magnetic field of the resonant frequency. More specifically, the resonance circuit includes an inductor and a capacitor, and a current is generated in the inductor by a magnetic field formed from the electronic device 3000 to charge the capacitor, and the charged current can be radiated again in the form of a magnetic field through the inductor. . In this case, the electronic device 3000 may acquire the second position information of the electronic pen 1000 by sensing the magnetic field provided from the resonance circuit of the electronic pen 1000 .

The second electrode 230 may generate a second electric field used to obtain angle information. Here, the angle information is an angle of the electronic pen 1000 with respect to the input surface of the electronic device 3000 .

More specifically, the second electrode 230 may generate a second electric field having a second effective distance. In this case, the second effective distance may be greater than the first effective distance of the first electric field. Here, the power consumed by the second electrode may be greater than the power consumed by the first electrode.

Here, the second electrode 230 may be disposed to be spaced apart from the first electrode 220 in the direction of the first pen nib 110 along the central axis of the main body 300 . More specifically, the second electrode 230 may be disposed at a position farther from the first end of the main body 300 than the first electrode 220 and closer to the second end of the main body 300 . Here, the second electrode 230 may be disposed inside the second pen nib 210 , or may be disposed on the second pen module 200 outside the second nib 210 . More specifically, the second electrode 230 may be disposed between the first electrode 220 and the second pressure sensor 420 .

According to an embodiment of the present invention, the electronic device may detect the second electric field and determine the angle of the electronic pen 1000 based on the position where the second electric field is detected. More specifically, the distance between the first electrode 220 and the second electrode 230 is fixed, but the position at which the first electric field obtained from the electronic device 3000 is detected and the position at which the second electric field is detected The distance between them varies. Therefore, the electronic device 3000 may determine the angle of the electronic pen 1000 with respect to the input surface based on the formula of the trigonometric function.

According to another embodiment of the present invention, the electronic pen 1000 may determine the angle of the electronic pen 1000 by itself. More specifically, when the first electrode 220 and the second electrode 230 of the electronic pen 1000 receive an electrical signal from the electronic device 3000 , the electronic pen 1000 is the electronic pen 1000 described above. ), the angle of the electronic pen 1000 may be determined based on the method of determining the angle.

The main body 300 is a component that supports or fixes the components of the electronic pen 1000 , and may refer to a type of grip part that a user can grip by hand.

The main body 300 may be provided in various forms as long as the first pen module 100 is disposed and the second pen module 200 can be fixed.

The main body 300 may include a first end, a second end, and a hollow.

Here, the communication unit 500 , the memory 600 , the power supply unit 700 , and the control unit 800 of the electronic pen 1000 may be located in the hollow of the main body 300 .

The first pen module 100 may be disposed at the first end of the main body 300 . Here, the first end may include a first pen nib 110 accommodating part in which the first nib 110 is accommodated, and a light-transmitting member 304 through which infrared rays may pass.

The second pen module 200 may be fixed to the second end of the main body 300 .

According to an embodiment of the present invention, the main body 300 is inserted into the first end so that a part of the first pen nib 110 is exposed, the first pen nib 110 is supported, and is located in the opposite direction to the first end. A second pen nib 210 may be disposed at the second end.

According to another embodiment of the present invention, the main body 300 may include a first main body in which the first pen nib 110 can be supported and a second main body in which the second pen nib 210 can be disposed. can Here, the second main body may be provided in a form detachable from the first main body. In this case, the first main body and the second main body may be electrically connected through a USB port. In addition, it can be mechanically connected through a frictional force by an interference fit structure or insertion.

Here, the first main body may be inserted into a first end to expose a portion of the first pen nib 110 to support the first pen nib 110, and may include a first connector at the second end. The second main body may have a second pen module 200 fixed to a third end and a second connector at a fourth end. In this case, the first connector and the second connector may be coupleable through male and female coupling. More specifically, the first connector may be a female USB terminal, and the second connector may be a USB terminal.

As the first main body and the second main body are electrically connected through the USB port, the control unit 800 located in the first main body controls the supply of power to the components located in the first main body, as well as the second main body. 2 It is possible to control the power supply to the components located on the main body.

According to an embodiment of the present invention, even when the control unit 800 is located in the first main body, the control unit 800 supplies power to the pattern detection unit 120 located in the first main body as well as the second main body. It is possible to control the power supply to the second pen module located in the . A detailed description of the power supply will be provided later.

In addition, as the first main body and the second main body are electrically connected through the USB port, the communication unit 500 located in the first main body controls the communication of the components located in the first main body, as well as the first 2 It is possible to control communication of components located on the main body. According to an embodiment of the present invention, even when the communication unit 500 is located in the first main body, the communication unit 500 can transmit the pen data generated by the control unit located in the first main body to the electronic device 3000 . Of course, the stylus data generated by the second pen module located on the second main body may be transmitted to the electronic device 3000 . A detailed description of the communication method will be provided later.

The specific structure of the main body 300 will be described with respect to the structure of the electronic pen 1000 .

The input unit 400 may receive a user input from a user. The user input may be made in various forms including button input, key input, touch input, voice input, and movement of the electronic pen 1000 . As an example, the electronic pen 1000 may receive a button input from the user to control power on/off of the electronic pen 1000 .

The input unit 400 may be provided in various forms. That is, the input unit 400 includes a conventional button, a jog wheel, etc., as well as a touch sensor for detecting a user's touch, a microphone for receiving a voice signal, a camera for recognizing a gesture through image recognition, and a method for detecting user approach It is a comprehensive concept that includes a motion sensor that recognizes a user's motion through a proximity sensor or a gyro sensor composed of an illuminance sensor or infrared sensor, and various types of input means that detect or receive various types of user input. .

The input unit 400 may include a power button 401 and a function button 402 . The power button 401 and the function button 402 will be described in detail below.

Also, the input unit 400 may sense various pieces of information. Here, various information may be used to generate a control signal for controlling the operation of the electronic pen 1000 , and may be used to generate pen data generated by the electronic pen 1000 . Various information sensed through the input unit 400 may be provided to the electronic device 3000 or the server 4000 .

Here, the input unit 400 may include a pressure sensor, a pen nib sensor, an acceleration sensor, and the like.

The pressure sensor may sense the pressure applied to the pen nib. The pressure sensor may include a first pressure sensor 410 for sensing the pressure applied to the first pen nib 110 .

According to an embodiment of the present invention, the first pressure sensor 410 may sense the pressure applied to the first pen nib 110 generated when writing on the medium 2000 .

According to another embodiment of the present invention, the first pressure sensor 410 may sense the pressure applied to the first pen nib 110 generated when the electronic pen 1000 writes on a surface other than the medium 2000 . can Here, when the electronic pen 1000 obtains a pressure value from the first pressure sensor, but does not obtain an image of a code pattern or an image based on reflected light through the pattern detecting unit 120, the gesture of the electronic pen 1000 is It can be determined as a trigger signal for execution.

The pressure sensor may include a second pressure sensor 420 for sensing the pressure applied to the second pen nib 210 . According to an embodiment of the present invention, the second pressure sensor may sense the pressure applied to the second pen nib 210 when it comes into contact with the input surface of the electronic device 3000 . According to another embodiment of the present invention, the second pressure sensor 420 is applied to the second pen tip 210 generated when the electronic pen 1000 writes on a surface other than the input surface of the electronic device 3000 . pressure can be sensed. Here, when the pressure value is obtained from the second pressure sensor but information by the electronic device 3000 is not transmitted, the electronic pen 1000 may determine it as a trigger signal for executing the gesture of the electronic pen 1000 .

The pressure sensor may sense a pressure value by measuring a force applied based on a resistance value generated according to the deformation by the force.

According to an embodiment of the present invention, when the user takes notes using the electronic pen 1000 , the electronic pen 1000 comes into contact with the medium 2000 , and the pressure generated at this time is the first pressure. It may be sensed by the sensor 410 . Here, the first pressure sensor 410 may be connected to the first pen stand 112 of the first pen nib 110 mounted on the electronic pen 1000 to sense the pressure. The electronic pen 1000 may use a pressure value sensed by the first pressure sensor 410 to generate pen data. In this case, the pressure value included in the pen data is processed into first pressure information, which is pressure information applied to the medium 2000 by the user during writing, to reproduce the content written by the user. can be used Also, according to an embodiment of the present invention, a signal output through the first pressure sensor 410 may be used as a trigger signal for turning on the state of the electronic pen 1000 . Also, a signal output through the first pressure sensor 410 may be used as a trigger signal for executing a gesture of the electronic pen 1000 .

According to another embodiment of the present invention, when the user inputs information into the electronic device 3000 using the electronic pen 1000 , the contact of the electronic pen 1000 with the input surface of the electronic device 3000 occurs. The pressure generated at this time may be sensed by the second pressure sensor 420 . Here, the second pressure sensor 420 may be disposed inside the second pen module 200 to sense the pressure applied to the second pen nib 210 . In the electronic pen 1000 , the pressure value sensed by the second pressure sensor 420 is processed into second pressure information, which is pressure information applied to the input surface of the electronic device 3000 by the user, so that the electronic device 3000 is the electronic device. It may be used to process data input by the pen 1000 . Here, the second pressure information may be included in the stylus data and transmitted to the electronic device 3000 .

Also, a signal output through the second pressure sensor 420 may be used as a trigger signal for executing a gesture of the electronic pen 1000 . Also, a signal output through the second pressure sensor 420 may be used as a trigger signal for executing a gesture of the electronic pen 1000 .

The pen nib sensor may detect a nib identifier for indicating the type of the first nib 110 mounted on the electronic pen 1000 . For example, a nib identifier for indicating the color of the first nib 110 may be provided on the outside of the first nib 110 mounted on the electronic pen 1000 , wherein the nib sensor is the nib The identifier can be detected through an optical method/magnetic method and various other available methods. The value sensed by the pen nib sensor or information on the pen nib interpreted by the sensed value may be provided to the electronic device 3000 , and the electronic device 3000 may be written by the user based on the received information. It can be used to reproduce content.

The acceleration sensor is a sensor used to determine whether the electronic pen 1000 in an on state automatically switches to an off state, and may detect the state of the electronic pen 1000 . Whether the electronic pen 1000 is moved may be detected through the acceleration sensor. If it is determined that the electronic pen 1000 is not moving for a predetermined time based on a value sensed by the acceleration sensor, the electronic pen 1000 may be automatically switched to an off state.

The binding detection sensor is a sensor used to determine whether the pen is in use, and may detect attachment and detachment of the electronic pen 1000 to and from the electronic device 3000 . According to an embodiment of the present invention, it is possible to detect whether the electronic pen 1000 is attached to the electronic device 3000 through the binding detection sensor.

The magnetic sensor is a sensor used to determine whether the pen is in use, and may detect whether the cap unit 310 is inserted into the electronic pen 1000 . According to an embodiment of the present invention, the cap 310 coupled to the electronic pen 1000 may be detected by detecting the magnet of the cap 310 through the magnetic sensor. A detailed description of the cap part 310 will be provided later.

The output unit 900 may provide various information to the user. The output unit 900 may be provided in various forms. The output unit 900 should be interpreted as a comprehensive concept including all of various types of output means.

According to an embodiment of the present invention, a display that outputs visible light that can be recognized through a user's eyes may be provided. Here, the output unit 900 may include a display for providing information on the operating state of the electronic pen 1000 to the user. Here, the display may mean the first display 901 installed adjacent to the first end of the main body 300 and the first display 902 installed adjacent to the second end of the main body 300 . . Also, the first display 901 and the first display 902 may each include an LED lamp.

According to another embodiment of the present invention, a speaker that outputs a sound that can be recognized through the user's hearing may be provided. Here, the electronic pen 1000 may include a buzzer that provides the user with information on whether the power of the electronic pen 1000 is turned on or off or whether the electronic pen 1000 is turned on or off. In this case, the buzzer may output a predetermined sound.

According to another embodiment of the present invention, a haptic device that can be recognized through a user's tactile sense may be provided.

The cap part 310 may be inserted into the first end or the second end of the main body 300 to have a predetermined internal space to protect the first pen nib 110 or the second nib 210 .

The cap part 310 may include a magnet. Here, the magnet provided in the cap part 310 may be sensed by the binding detection sensor. In this case, the power supply may be changed as the cap part 310 is inserted into the first end or the second end of the main body 300 . A detailed description of the power supply based on the insertion of the cap part 310 will be provided later.

The memory 600 may store various types of information. The memory 600 may temporarily or semi-permanently store data. An operating program such as firmware for driving the electronic pen 1000 may be stored in the memory 600 . The memory 600 may store information, commands, and data necessary for driving the electronic pen 1000 , such as pen data generated by the electronic pen 1000 and a pressure value output by the input unit 400 . Details of various information stored in the memory 600 will be described later.

The memory 600 may be provided in various forms. Examples of the memory 600 may include a flash memory, a read only memory (ROM), and a random access memory (RAM).

The power supply unit 700 may provide power necessary for the operation of each component of the electronic pen 1000 . More specifically, according to an embodiment of the present invention, the power supply unit 700 may supply power to the control unit 800 . According to another embodiment of the present invention, the power supply unit 700 may supply power to the first pen module 100 . According to another embodiment of the present invention, the power supply unit 700 may supply power to the second pen module 200 .

The power supply unit 700 may be provided in various forms. According to an embodiment of the present invention, the power supply unit 700 may be implemented as a rechargeable battery 710 . In this case, when the communication unit 500 of the electronic pen 1000 includes a charging port, when the electronic pen 1000 is connected to the electronic device 3000 or an external power source through the charging port, the electronic device 3000 ) or power may be supplied from the external power source, and thus the battery 710 may be charged. According to another embodiment of the present invention, the power supply unit 700 may be implemented as a replaceable battery 710 .

The controller 800 controls the overall operation of the electronic pen 1000 . To this end, the controller 800 may perform calculation and processing of various types of information and may control operations of components of the electronic pen 1000 .

In addition, the control unit 800 may analyze the image for the code pattern obtained by the pattern detection unit 120, and decode the information encoded in the unit cell included in the image of the obtained code pattern, Furthermore, position coordinates of the medium 2000 of the electronic pen 1000 and identification information (eg, book information or page information, etc.) of the medium 2000 may be obtained from the decoded information.

The controller 800 may generate pen data based on information obtained by decoding information encoded in a unit cell, and as described above, the generated pen data is stored in the memory 600 or stored in the communication unit ( 500 ) through the electronic device 3000 and the server 4000 .

Alternatively, the control unit 800 analyzes the image of the reflection pattern obtained by the pattern detection unit 120 , obtains data on a change in the position of the electronic pen 1000 according to time, and stores the data in the memory 600 . Alternatively, the data may be transmitted to at least one of the electronic device 3000 and the server 4000 through the communication unit 500 .

The controller 800 may control generation of at least one of the first electric field generated by the first electrode 220 and the second electric field generated by the second electrode 230 .

The controller 800 may generate stylus data based on an electrical signal generated through the second pen module 200 . The stylus data may include angle information and second pressure information.

More specifically, the controller 800 may generate the second pressure information based on the pressure value sensed by the second pressure sensor 420 .

Also, angle information may be generated based on the electrical signal of the electronic device 3000 received by the first electrode 220 and the second electrode 230 .

Here, the controller 800 may transmit the stylus data to at least one of the electronic device 3000 and the server 4000 through at least one of the first electrode 220 , the second electrode 230 , and the communication unit 500 . A detailed description of the communication unit 500 will be provided later.

The controller 800 may control power supply to components of the electronic pen 1000 . Here, the control unit 800 may control the degree of power supplied from the power supply unit 700 based on the state of the electronic pen 1000 .

The controller 800 may include a power management integrated circuit. The power management integrated circuit may perform various functions for power management of the electronic pen 1000 . According to an embodiment of the present invention, the power management integrated circuit may boost or drop a DC voltage. In this case, the power management integrated circuit may provide various voltages required by the components of the electronic pen 1000 . According to another embodiment of the present invention, the power management integrated circuit may provide for charging the battery 710 . According to another embodiment of the present invention, the power management integrated circuit may control the amount of current transmitted to the components of the electronic pen 1000 . A detailed description of the control of the power supply will be provided later. According to another embodiment of the present invention, the power management integrated circuit controls the power transmitted to each of the components of the electronic pen 1000, so that the power consumed by the first pen module 100 and the power consumed by the second pen module ( 200) can change the power consumed.

The control unit 800 analyzes the image acquired by the first control unit and the pattern sensing unit 120 for controlling the general operation of the electronic pen 1000 , decodes information necessary for the unit cell, and performs the above-described pen data analysis. may include a second control unit for generating In addition, the controller 800 may further include a third controller that generates an electric signal used to generate an electric field.

In this case, the control unit 800 may be logically divided into the first control unit, the second control unit, and the third control unit, but the first control unit, the second control unit, and the third control unit are physically separated from each other. It may be implemented in the form of

The controller 800 may be implemented as a computer or a similar device according to hardware or software or a combination thereof.

The hardware-type controller 800 may be provided in the form of an electronic circuit that processes electrical signals to perform a control function, and in software, may be provided in the form of a program for driving the hardware-type controller 800 .

Meanwhile, in the following description, unless otherwise specified, the operation of the electronic pen 1000 may be interpreted as being performed under the control of the controller 800 .

The communication unit 500 may communicate with an external device. For example, the electronic pen 1000 may communicate with at least one of the electronic device 3000 and the server 4000 through the communication unit 500 . Here, the electronic pen 1000 may transmit/receive various types of information to and from an external device. According to an embodiment of the present invention, the electronic pen 1000 may transmit/receive information to and from the electronic device 3000 through the communication unit 500 . According to another embodiment of the present invention, the electronic pen 1000 may transmit/receive information to and from the server 4000 through the communication unit 500 .

More specifically, the electronic pen 1000 may transmit pen data generated by the electronic pen 1000 to at least one of the electronic device 3000 and the server 4000 through the communication unit 500 . In addition, the electronic pen 1000 provides stylus data to the electronic device 3000 through the second pen module 200, and transmits the stylus data to the electronic device 3000 and the server 4000 through the communication unit 500 . at least one of the

That is, the electronic pen 1000 may transmit pen data and stylus data to at least one of the electronic device 3000 and the server 4000 through one communication unit 500 .

A method of transmitting pen data and stylus data of the communication unit 500 may be set in various ways. According to an embodiment of the present invention, when pen data is transmitted to the electronic device 3000 through the communication unit 500 and stylus data is transmitted to the electronic device 3000 through the communication unit 500, the electronic pen ( 1000) may process the transmission of the pen data that was being transmitted first after the transmission of the stylus data input later. According to another embodiment of the present invention, when pen data is transmitted to the electronic device 3000 through the communication unit 500 and stylus data is transmitted to the electronic device 3000 through the communication unit 500, the electronic pen ( 1000) may first process the transmission of the pen data being transmitted, and then process the transmission of the input stylus data later.

Further, according to another embodiment of the present invention, when pen data is transmitted to the electronic device 3000 through the communication unit 500 while the stylus data is transmitted to the electronic device 3000 through the communication unit 500, The electronic pen 1000 may first process the transmission of the input stylus data, and then process the transmission of the input pen data later. According to another embodiment of the present invention, when pen data is transmitted to the electronic device 3000 through the communication unit 500 while the stylus data is transmitted to the electronic device 3000 through the communication unit 500 , the electronic The pen 1000 may first process the transmission of the pen data input later, and then process the transmission of the stylus data input first.

Here, the above-described transmission of the pen data or stylus data to the server 4000 of the pen data or stylus data to the electronic device 3000 may also be applied.

In addition, the electronic pen 1000 may include at least one of a command and data for controlling an operation of the electronic pen 1000 from at least one of the electronic device 3000 and the server 4000 or providing necessary information to the electronic pen 1000 . may be received through the communication unit 500 .

The communication unit 500 may include a wired module and a wireless module.

A wired module is a module for transmitting and receiving data with an external device by wire, and may include a configuration such as a USB port, a PS/2 port, a parallel port, and a serial port that can transmit and receive data with an external device. An Ethernet port for accessing the Internet or the like through a local area network) may be included.

The wireless module includes a mobile communication module 3300 that connects to a mobile communication network through a mobile communication base station and transmits and receives data, a wireless local area network (WLAN) series communication method such as Wi-Fi or Bluetooth, It may include a short-range communication module 3300 using a wireless personal area network (WPAN)-based communication method such as Zigbee.

Next, the electronic device 3000 according to embodiments of the present invention will be described.

5 is a diagram illustrating an exemplary appearance of an electronic device according to embodiments of the present invention, and FIG. 6 is a block diagram for explaining components of an electronic device according to embodiments of the present invention.

5 and 6 , the electronic device 3000 may include an input module 3100 , an output module 3200 , a communication module 3300 , a memory 600 , and a control module 3500 . However, since the components shown in FIG. 6 are not essential, the electronic device 3000 having more components than the illustrated components or fewer than the illustrated components may be implemented. will be.

Hereinafter, each component of the electronic device 3000 will be described in turn.

The input module 3100 may receive a user input from a user. The user input may be made in various forms, including a key input, a touch input, and a voice sound. Examples of the input module 3100 that can receive such a user input include a traditional keypad, keyboard, and mouse, as well as a touch sensor that detects a user's touch, a microphone that receives a voice signal, and a gesture through image recognition. A motion sensor that recognizes a user's motion through a proximity sensor or gyro sensor consisting of a camera that detects user's approach, an illuminance sensor or infrared sensor that detects user's approach, and various other types of input means that detect or receive various types of user input It is a comprehensive concept that includes all

The touch sensor may be located on the input surface of the electronic device 3000 . Here, the touch sensor may be implemented as a piezoelectric or capacitive touch sensor for detecting a touch through a touch panel or a touch film attached to the display panel, or an optical touch sensor for detecting a touch by an optical method. Here, the capacitive touch sensor may be an active electrostatic touch sensor for recognizing a touch point to which an electrical signal is applied by including a plurality of conductive wires. When the electronic device 3000 includes an active electrostatic touch sensor, the electronic device 3000 may detect an electrical signal generated by the electronic pen 1000 . More specifically, the touch sensor may receive the first electric field generated by the first electrode 220 included in the second pen module 200 of the electronic pen 1000 . Also, the touch sensor may receive the second electric field generated by the second electrode 230 included in the second pen module 200 of the electronic pen 1000 .

Meanwhile, the electronic device 3000 may include an electromagnetic resonance type touch sensor. Here, the electromagnetic resonance type touch sensor may include a digitizer sensor substrate. Here, the digitizer sensor substrate may include a plurality of loop coils to emit a magnetic field and sense a magnetic field formed from the outside. More specifically, the digitizer sensor substrate includes a plurality of loop coils that generate a magnetic field of a preset resonant frequency, generates a magnetic field by receiving AC power, and detects the magnetic field formed from the electronic pen 1000 in response to the electronic pen Second location information of (1000) may be acquired.

According to an embodiment of the present invention, the electronic device 3000 may determine the second location information by receiving the first electric field from the input module 3100 .

According to an embodiment of the present invention, the electronic device 3000 may determine the second location information by detecting a magnetic field of a preset resonant frequency in the input module 3100 .

According to an embodiment of the present invention, the electronic device 3000 may acquire the angle information included in the stylus data by receiving the second electric field from the input module 3100 . According to another embodiment of the present invention, the electronic device 3000 may determine the angle information by receiving the second electric field from the input module 3100 .

According to an embodiment of the present invention, the electronic device 3000 may acquire the second pressure information included in the stylus data by receiving the second electric field from the input module 3100 .

The output module 3200 may output various information and provide it to the user. The output module 3200 generates a display that outputs visible light that can be recognized through the user's eyes, a speaker that outputs a sound that can be recognized through the user's hearing, and a vibration that can be recognized through the user's tactile sense. It is a comprehensive concept including all of the haptic device and other various types of output means.

The display includes a liquid crystal display (LCD), a light emitting diode (LED) display, an organic light emitting diode (OLED) display, a flat panel display (FPD), a transparent display ( transparent display, curved display, flexible display, 3D display, holographic display, projector, and other various types of devices capable of performing an image output function It is a concept meaning an image display device in a broad sense including all of the . Such a display may be in the form of a touch display integrated with the touch sensor of the input module 3100 . That is, according to an embodiment of the present invention, the input module 3100 and the output module 3200 may be provided as independent components. According to another embodiment of the present invention, the input module 3100 and the output module 3200 may receive a user input from a user, output various types of information, and share components provided to the user.

The communication module 3300 may communicate with an external device. For example, the electronic device 3000 may communicate with the electronic pen 1000 or the server 4000 through the communication module 3300 . Accordingly, the electronic device 3000 may transmit/receive various types of information to and from an external device. For example, the electronic device 3000 may receive pen data generated by the electronic pen 1000 through the communication module 3300 , and may transmit necessary information to the electronic pen 1000 . Here, the necessary information may include color information, line width information, brush type information, etc. of the electronic pen 1000 , and each information will be described below.

In addition, the electronic device 3000 transmits, through the communication module 3300 , pen data received from the electronic pen 1000 and stroke data obtained by analysis of the pen data to another electronic device 3000 and the server 4000 . can be transmitted to at least one of the following, and necessary information can be received from at least one of the other electronic device 3000 and the server 4000 .

The communication module 3300 includes a wired communication module 3300 including a LAN port, a USB port, a PS/2 port, a parallel port, a serial port, etc. connected to the Internet through a LAN (Local Area Network), and a mobile communication base station. A wireless local area network (WLAN)-based communication method such as a mobile communication module 3300, which transmits and receives data by accessing a mobile communication network via Wi-Fi, or WPAN (Bluetooth) such as Zigbee It may be composed of a short-range communication module 3300 using a wireless personal area network-based communication method, a satellite communication module 3300 using a global navigation satellite system (GNSS) such as a global positioning system (GPS), or a combination thereof. .

The memory module 3400 may store various types of information. The memory module 3400 may temporarily or semi-permanently store data. The memory module 3400 may store an operating system (OS) for driving the electronic device 3000 , and if necessary, various data received from the electronic pen 1000 and the electronic pen 1000 . An application program for processing various data received from the . The memory module 3400 may be provided in various forms. Examples of the memory module 3400 include a hard disk (HDD), a solid state drive (SSD), a flash memory, a read-only memory (ROM), and a random access memory (RAM). etc. may exist.

The control module 3500 controls the overall operation of the electronic device 3000 . To this end, the control module 3500 may perform calculation and processing of various types of information and may control operations of components of the electronic device 3000 .

The control module 3500 may be implemented as a computer or a similar device according to hardware or software or a combination thereof. The hardware-type control module 3500 may be provided in the form of an electronic circuit that processes electrical signals to perform a control function. The software-type control module 3500 may be provided in the form of a program for driving the hardware-type control module 3500 .

The control module 3500 may determine the second position information of the electronic pen 1000 based on the first electric field generated by the first electrode 220 of the electronic pen 1000 . More specifically, when the first electric field is transmitted to the input module 3100 of the electronic device 3000 through the input surface of the electronic device 3000 , the control module 3500 controls the electronic device 3000 of the electronic pen 1000 . ), the second location information that is location information may be determined.

In addition, the control module 3500 provides angle information of the electronic pen 1000 based on the first electric field generated by the first electrode 220 of the electronic pen 1000 and the second electric field generated by the second electrode 230 of the electronic pen 1000 . can be judged

The control module 3500 may determine information on the electronic pen 1000 by using the stylus pen data provided from the electronic pen 1000 . Here, the control module 3500 may acquire the first pressure information and the second pressure information generated by the electronic pen 1000 . Also, when the angle information is generated by the stylus, the control module 3500 may acquire the angle information generated by the stylus.

Meanwhile, in the following description, unless otherwise specified, the operation of the electronic device 3000 may be interpreted as being performed by the control of the control module 3500 .

Hereinafter, an operation of the electronic pen 1000 according to embodiments of the present invention will be described.

The user may take notes on the medium 2000 according to some embodiments of the present invention using the electronic pen 1000 according to embodiments of the present invention.

In addition, the electronic pen 1000 according to the embodiments of the present invention acquires an image of at least a partial region of the code pattern provided in the medium 2000 according to some embodiments of the present invention, and the obtained image It is possible to obtain location information by analyzing information encoded in a unit cell included within. The electronic pen 1000 continuously acquires an image of a code pattern and position information interpreted therefrom while the user is taking notes, and performs at least one of processing and storage, and consequently, the user can later use the medium (2000). ), it is possible to generate basic data that can interpret the trajectory along which the handwriting was performed.

Hereinafter, a code pattern according to embodiments of the present invention capable of encoding location information and the like will be first described, and the location information encoded in the code pattern using an image of the code pattern will be transferred to the electronic pen 1000 . ) and how to interpret it.

However, since the electronic pen 1000 according to the embodiments of the present invention uses a generally used pen nib, it is not necessarily possible to write only on the medium 2000 according to some embodiments of the present invention, but a general medium. It is also possible to write on (eg, paper on which a code pattern is not provided, etc.).

On the other hand, in the electronic pen 1000 according to embodiments of the present invention, in addition to the method of analyzing the image for the code pattern, the medium 2000 is irradiated with light, and the pattern image of the reflected light is compared and analyzed over time. It is also possible to generate basic data for interpreting the handwriting performed by the user on the medium 2000 by obtaining the relative position information of the medium 2000 of (1000).

The code pattern according to an embodiment of the present invention is configured in such a way that one unit cell is repeatedly arranged according to a desired size in two dimensions.

7 and 8 are diagrams exemplarily showing unit cells constituting a code pattern according to an embodiment of the present invention.

7 and 8 , each unit cell includes line segment codes, and the line segment codes can be largely classified into reference codes and information codes.

The reference code is composed of a horizontal reference code, a vertical reference code, and a cross reference code.

The reference code has a function of confirming the area of the unit cell when decoding the code pattern.

The information code performs a function for indicating information to be encoded in a unit cell, in a manner to be described later.

All other reference codes and information codes except for the cross reference code have the same geometric shape. That is, the reference codes and the information codes except for the cross reference code have a shape of rotational symmetry with each other and are 'line segment shape'.

The cross reference code, unlike other reference codes and information codes, has a cross-shaped geometric shape.

Meanwhile, in the unit cell, virtual lines may be defined, and the virtual lines are composed of a plurality of horizontal virtual lines extending in a horizontal direction and a plurality of vertical virtual lines extending in a vertical direction. In the description of some embodiments of the present invention, a component called 'virtual line' may be actually printed on the medium 2000, but may not be printed.

Each of the plurality of horizontal virtual lines is parallel to each other and is disposed apart from each other by a predetermined distance.

In addition, each of the plurality of vertical virtual lines are parallel to each other, and are disposed apart from each other by a predetermined distance.

Any one of the plurality of horizontal virtual lines is orthogonal to any one of the plurality of vertical virtual lines.

A plurality of intersection points formed by meeting a plurality of horizontal virtual lines and a plurality of vertical virtual lines are formed. These intersections are hereinafter referred to as virtual reference points. In the description of some embodiments of the present invention, a component called a 'virtual store' may be actually printed on the medium 2000, but may not be printed.

Referring to FIG. 7 , one unit cell is illustrated as having a total of seven horizontal virtual lines and seven vertical virtual lines, and the horizontal reference codes are disposed on the uppermost horizontal virtual line. It is shown that the vertical reference codes are arranged on the vertical virtual line arranged on the leftmost side.

The reference codes are placed on the virtual reference point. In particular, the reference codes are arranged so that their center of mass is at the virtual reference point. That is, the horizontal reference codes and the vertical reference codes are arranged so that the virtual reference point can be located in the center of both ends of each reference cord. In addition, the cross reference code having a cross-shaped geometric shape is arranged so that the center of the cross is at the virtual reference point.

Information codes are also placed on the virtual reference point. In particular, the information codes, unlike the reference codes, are arranged so that their center of mass is not arranged at the virtual reference point. That is, the virtual reference point is not disposed at the center of both ends of the information codes. In the case of information code, one end of both ends is placed near the virtual reference point, and the other end is determined according to the value to be encoded in the information code. , located at a different location from the virtual reference point. This will be described in detail in the method of encoding information into information codes.

The code pattern having the above-described shape and components is formed on the medium 2000, and the code pattern actually formed on the medium 2000 may be implemented by printing or a similar method. At this time, when the code pattern is printed on the medium 2000, as shown in FIG. 8, only the aforementioned reference code and information code can be printed. That is, horizontal virtual lines, vertical virtual lines, and virtual reference points among the components constituting the above-described code pattern may not be actually printed.

The basic principle of encoding information in an information code is to arrange one end of the information code near the virtual reference point and the other end of the information code so that the information code passes through the virtual reference point, from the one end to the other end. It encodes the desired information in the corresponding information code using the relationship with the end.

That is, the direction of the information code (hereinafter referred to as the direction of the information code) from one end of the information code (the end disposed closer to the virtual reference point) to the other end (the end disposed further away from the virtual reference point). ), the desired information is encoded in the corresponding information code.

A method of encoding information in an information code will be described in more detail. However, for convenience of explanation, a case in which information that can be encoded in one information code is 2 bits will be described as an example.

9 is a diagram for explaining a method of encoding 2-bit information in an information code according to embodiments of the present invention.

For clear explanation, it is assumed that the origin is a virtual reference point at which an information code to be encoded is arranged, and an orthogonal coordinate system defined in the directions of horizontal reference codes and vertical reference codes provided in a unit cell is assumed.

At this time, if the information to be encoded through the information code is '00', one end of the information code (the end located closer to the virtual reference point) is in the third quadrant of the orthogonal coordinate system, and the other end (the above) The direction of the information code can be determined so that the end, which is farther away from the virtual reference point) can be located in the first quadrant of the Cartesian coordinate system (refer to FIG. 9(a)).

If the information to be encoded through the information code is '01', one end of the information code (the end located closer to the virtual reference point) is in the fourth quadrant of the Cartesian coordinate system, and the other end (the virtual reference point) The direction of the information code can be determined so that the distal end positioned further away from ?) can be positioned in the second quadrant of the Cartesian coordinate system (refer to (b) of FIG. 9).

In addition, when the information to be encoded through the information code is '10', one end of the information code (the end located closer to the virtual reference point) is in the first quadrant of the Cartesian coordinate system, and the other end (the above) The direction of the information code can be determined so that the end that is farther away from the virtual reference point) can be located in the third quadrant of the Cartesian coordinate system (refer to FIG. 9(c)).

In addition, when the information to be encoded through the information code is '11', one end of the information code (the end located closer to the virtual reference point) is in the second quadrant of the orthogonal coordinate system, and the other end (the above) The direction of the information code can be determined so that the end that is located further away from the virtual reference point) can be located in the fourth quadrant of the Cartesian coordinate system (refer to (d) of FIG. 9).

If, as shown in FIG. 9, the information code is designed to encode 2-bit information in the information code, and as shown in FIGS. 7 and 8, 36 information codes are included in one unit cell. If there is, information that can be encoded in one unit cell may be 2 bits * 36 = 72 bits.

However, the method of encoding information in the information code according to the embodiments of the present invention is from one end of the information code (eg, the end located closer to the virtual reference point) to the other end of the information code (eg, For example, the number of bits of information that can be encoded in the information code is not limited to 2 bits, and may be 3 bits or more. For example, if the direction of the information code is interpreted in units of 45 degrees in order to encode information into the information code, there are a total of 8 distinct directions of the information code, and accordingly, a total of 3 bits of information is stored in one information code. can be encoded.

Next, information encoded in the unit cell will be described.

The unit cell information encoded in the unit cell may include error verification information, medium 2000 identification information, coordinate information, other additional information, icon information, and the like.

The error verification information is information for determining whether an error has occurred during encoding of the unit cell.

The medium 2000 identification information is identification information for the medium 2000 in which the unit cell is provided. The medium 2000 identification information may include book information, page information, and the like.

The book information refers to identification information given to a corresponding note or book when the plurality of mediums 2000 are manufactured in the form of a notebook or book.

The page information is information for identifying on which page the medium 2000 provided with the unit cell is located in the corresponding note or book, when the plurality of mediums 2000 are manufactured in the form of a notebook or book. means

The icon information refers to identification information given only to a partial region of the medium 2000 so that a specific function is additionally executed for only a partial region of the medium 2000 . Here, when a unit cell in which icon information including a specific function is encoded is decoded, at least one of the electronic pen 1000 and the electronic device 3000 may perform a specific function. Here, when a unit cell to which icon information is attached is sensed through the pattern detecting unit 120 , the electronic device 3000 may execute a specific function corresponding to the icon information.

In addition, when the medium (2000) is implemented to have a special format according to a special use (eg, a paper including a checklist for security check, a test paper, etc.), the medium (2000) identification information is the corresponding medium ( 2000) may include information for identifying which format it has.

The coordinate information means two-dimensional coordinate information indicating at which position the unit cell is located on the medium 2000 in which the unit cell is provided. Accordingly, the coordinate information may include an x-coordinate and a y-coordinate.

Other additional information may include various other necessary information. For example, license information on a coordinate code provided to the medium 2000 may be included in the other additional information.

As described above, the electronic pen 1000 analyzes at least one unit cell included in the image acquired through the pattern detecting unit 120 and decodes information encoded in the unit cell, Cell information can be acquired, and accordingly, medium 2000 identification information, first coordinate information, and other additional information included in the unit cell information can be acquired.

Next, a method for the electronic pen 1000 to generate pen data based on unit cell information will be described.

The pen data may include unit cell information acquired by the electronic pen 1000 and handwriting trace information used to generate stroke data necessary to reproduce the user's handwriting trace in real time or to replay it later.

The pen data may include visual information, first pressure information, first location information, first color information, and medium 2000 identification information.

The visual information is information on a time point at which an image used to generate one unit of pen data is acquired or a time point at which one unit of pen data is generated. That is, if the first location information means location information of the electronic pen 1000 with respect to the medium 2000 at a point in time, the pen data is data obtained by classifying the first location information according to time.

The first pressure information is pressure information output from the first pressure sensor 410 when an image used to generate one unit of pen data is acquired or when one unit of pen data is generated.

The first color information is information about a color of a stroke created by the electronic pen 1000 recognized by the controller 800 . In more detail, the first pen nib 110 of the electronic pen 1000 is composed of a general ink pen, and the color written on the medium 2000 cannot be changed without replacing the pen nib. However, according to an embodiment of the present invention, the stroke color of the first pen data stored in the memory 600 of the electronic pen 1000 may be changed based on a change in the setting of the electronic device 3000 . According to another embodiment of the present invention, the stroke color transmitted to the electronic device 3000 may be changed based on a change in the setting of the electronic device 3000 .

Since the medium 2000 identification information and the memo information are the same as or similar to information included in the unit cell information, a detailed description thereof will be omitted.

The first position information is information on the position of the electronic pen 1000 with respect to the medium 2000, which is generated by performing a correction operation necessary for the coordinate information obtained from the unit cell information. The first location information may or may not coincide with coordinate information obtained from unit cell information, and a method of generating the first location information will be described in detail below.

10 is a diagram for explaining a method of generating position information of the electronic pen 1000 with respect to the medium 2000 according to embodiments of the present invention.

Referring to FIG. 10 , an image I acquired by the camera module 121 of the electronic pen 1000 is exemplarily shown. As shown in FIG. 10 , the acquired image I includes at least one The above unit cell UC may be included, and the location CC of the unit cell UC may be obtained in the form of coordinates by interpreting information encoded in the unit cell by the above-described method. At this time, as shown, since the unit cell UC used to interpret the coordinate information may not be located in the center of the acquired image I, the The coordinate information may be slightly different from the exact position of the electronic pen 1000 with respect to the medium 2000 . That is, it can be assumed that the center IC of the acquired image I is closest to the position of the electronic pen 1000 with respect to the medium 2000, and the center IC of the acquired image I is the unit cell. It may be different from the coordinates (x,y) obtained by the coordinate information obtained from (UC).

Accordingly, the electronic pen 1000, in order to obtain the coordinates (x', y') of the center (IC) of the acquired image I, coordinate information acquired from the unit cell UC and the acquired image ( Calculate the offset value between the center (IC) of I), and add or subtract the calculated offset value (Δx, Δy) to the coordinate information (x, y) obtained from the unit cell (UC) to obtain The coordinates (x', y') of the center (IC) of the image (I) are calculated.

The position of the electronic pen 1000 with respect to the medium 2000 can be more accurately calculated in the above-described manner, and the coordinate values (x', y') corrected in the above manner are used as the above-described position information. to be.

Meanwhile, although not shown in the drawings, the electronic pen 1000 may acquire position information of the electronic pen 1000 with respect to the medium 2000 by comparing and analyzing the reflection pattern images. Specifically, the electronic pen 1000 performs an image processing process such as appropriately adjusting a color contrast value through a digital signal processor (DSP) of a plurality of periodically acquired reflective pattern images, and then displays the images. By comparing and analyzing with the passage of time, location information such as the amount of position change and relative position movement of the electronic pen 1000 may be acquired.

As described above, the electronic pen 1000 may continuously generate pen data, and accordingly, the movement of the position of the electronic pen 1000 with respect to the medium 2000 according to the user's handwriting is real-time in the form of pen data. may be recorded, and the pen data may be appropriately processed as needed later by the electronic device 3000 or the server 4000 as needed.

Power supplied to the electronic pen 1000 may be changed based on a user input received by the input unit 400 . More specifically, the controller 800 may control the power supplied by the battery 710 to each component of the electronic pen 1000 based on the state of the electronic pen 1000 . According to an embodiment of the present invention, the controller 800 may control the power supplied to the first pen module 100 based on the first pressure information sensed by the first pressure sensor 410 . According to another embodiment of the present invention, the controller 800 may control the power supplied to the second pen module 200 based on the second pressure information sensed by the second pressure sensor 420 . According to another embodiment of the present invention, the controller 800 may control the power supplied to at least one of the first pen module 100 and the second pen module 200 based on whether the cap part 310 is inserted. can

Power supplied to the electronic pen 1000 may be changed according to the state of the electronic pen 1000 . More specifically, the power supply unit 700 may supply power to each component of the electronic pen 1000 . Here, the controller 800 may determine which component to supply power to according to the state of the electronic pen 1000 . For example, the control unit 800 supplies power to components of the electronic pen 1000 included in the second pen module 200 , but controls the electronic pen 1000 included in the first pen module 100 . Components may not be powered. The state change of the electronic pen 1000 will be described in detail below.

The electronic pen 1000 has an on state in which power is supplied to the components of the electronic pen 1000 by the battery 710 and an off state in which power is not supplied to the components of the electronic pen 1000 . can have status. Here, the off state may mean a state of the electronic pen 1000 rather than an on state. Here, the state of the electronic pen 1000 may be variously changed based on at least one of an input sensed by the input unit 400 and a time at which the input is acquired.

The on state may be initiated through various methods.

According to an embodiment of the present invention, the on state may be initiated when at least one of the first pressure sensor 410 and the second pressure sensor 420 senses a pressure value. According to another embodiment of the present invention, the on state may be initiated when the binding detection sensor detects detachment of the electronic pen 1000 from the electronic device 3000 .

According to another embodiment of the present invention, the on state may be initiated when the binding detection sensor detects that the cap part 310 inserted into the first end of the main body 300 is removed from the first end.

According to another embodiment of the present invention, the on state may be initiated when the binding detection sensor detects that the cap part 310 inserted into the second end of the main body 300 is removed from the second end.

The ON state may be variously classified according to the degree to which power is supplied to the components of the electronic pen 1000 . Here, as the voltage supplied from the power supply unit 700 is changed, the power delivered to the first pen module 100 and the second pen module 200 of the electronic pen 1000 may be changed.

The on state may be divided into various states depending on whether power is supplied to each component of the electronic pen 1000 . Here, the voltage supplied from the power supply unit 700 is kept constant, but the first pen module 100 and the second pen module ( 200) may be changed.

According to an embodiment of the present invention, the control unit 800 classifies the state of the electronic pen 1000 based on a user input and supplies the first pen module 100 based on the divided state of the electronic pen 1000 . Power can be controlled. According to another embodiment of the present invention, the controller 800 classifies the state of the electronic pen 1000 based on a user input and supplies it to the second pen module 100 based on the divided state of the electronic pen 1000 . The power supply can be controlled.

The on state of the electronic pen 1000 includes a first state in which the electronic pen 1000 operates, a second state in which an input is not provided to the electronic pen 1000 for a first time after the first state, and a standby state; The third state may include an idle state in which no input is provided to the electronic pen 1000 for a second period of time longer than the first period after the second state. Here, since the first state, the second state, and the third state are not essential, the electronic pen 1000 having more states than the described states or fewer states than the described states may be implemented. Here, the first time is a time during which the first pen input is not provided to the electronic pen 1000 after the on-state of the first pen module 100 is started.

The first pen input is a user input associated with the first pen module. Here, the first pen input is the acquisition of the pressure value of the first pressure sensor 410 , the acquisition of the handwriting image of the pattern detection unit 120 , the user input through the input unit 400 , and the electronic device 3000 through the communication unit 500 . It may include at least one of user input in .

The state of the electronic pen 1000 may be variously applied to each component of the electronic pen 1000 . More specifically, the same state may be applied to each component of the electronic pen 1000 , but different states may be applied. According to an embodiment of the present invention, the pattern sensing unit 120 may operate in a first state, but the first electrode may operate in a third state. According to another embodiment of the present invention, a component included in the first pen module may operate in a first state, but a component included in the second pen module may operate in a second state.

Conditions required for state change may be different for each component. A detailed description of the conditions required to change the state will be provided later. Of course, when a condition necessary for changing one component to an ON state is satisfied, all of the components of the electronic pen 1000 may be converted to an ON state.

Here, the components of the electronic pen 1000 may be grouped and state changes may be made. More specifically, the state change may be made by configuring each element into a predetermined group, rather than changing the state for each element.

According to an embodiment of the present invention, components necessary to generate pen data may be configured in a first group, and components necessary to provide stylus data to the electronic device 3000 may be configured in a second group. Here, components included in both the first group and the second group may exist, but the first group and the second group may not include shared components. For example, the pattern sensing unit 120 , the memory 600 , the control unit 800 , and the communication unit 500 are formed in a first group, and the first electrode 220 , the second electrode 230 , and the control unit 800 . ) and the communication unit 500 may be formed as a second group.

The off state may be initiated through a variety of methods. According to an embodiment of the present invention, when a predetermined time has elapsed in the third state, the electronic pen 1000 may be changed to an off state. Here, the predetermined time may be variously set. For example, the predetermined time may be set to 10 minutes. Of course, when the power supply unit 700 is discharged, the electronic pen 1000 is changed to an off state.

There may be components that are always powered. According to an embodiment of the present invention, the input unit 400 may be maintained in an on state as long as the battery 710 is not discharged in order to sense the user's input. According to another embodiment of the present invention, the power of the second pen module 200 may be maintained as long as the battery 710 is not discharged for a quick response.

The on state and the off state may be independently applied to each component. According to an embodiment of the present invention, the first pen module 100 may operate in an on state, but the second pen module 200 may operate in an off state. According to another embodiment of the present invention, the first pen module 100 may operate in an off state, but the second pen module 200 may operate in an on state.

Power supplied to the components of the electronic pen 1000 may be variously changed. Here, the supplied power may be supplied based on the state of the electronic pen 1000 . Since the state of the electronic pen 1000 has been described in detail above, conditions necessary for changing the state will be described below.

Conditions necessary for changing the state of the electronic pen 1000 may be set in various ways. More specifically, the state of the electronic pen 1000 may be changed based on an input input to the electronic pen 1000 . For example, a condition required for a state change may be set based on at least one of the input unit 400 , the communication unit 500 , and the cap unit 310 .

Here, various conditions for changing the state of each component of the electronic pen 1000 may be provided.

The state of the first pen module 100 may be changed based on various conditions.

Here, the state of the first pen module 100 includes the pressure value sensed by the first pressure sensor, the time the first pressure sensor acquires the pressure value, whether the binding detection sensor is attached or detached, and the cap part of the magnetic sensor ( 310) may be variously changed based on at least one of whether or not it is inserted.

The on state of the first pen module 100 may be initiated through various methods. According to an embodiment of the present invention, the on state of the first pen module 100 may be initiated when the first pressure sensor 410 senses a pressure value. According to another embodiment of the present invention, the on state of the first pen module 100 may be initiated when the binding detection sensor detects detachment of the electronic pen 1000 from the electronic device 3000 . According to another embodiment of the present invention, the on state of the first pen module 100 is that the magnetic sensor detects that the cap part 310 inserted into the first end of the main body 300 is removed from the first end. may be initiated accordingly.

The on state of the first pen module may include various states. Here, the power supplied to the pattern sensing unit may be changed according to the type of the on state of the electronic pen 1000 .

The on state may include a first state that is an operating state. The first state may be a state in which power is supplied to all components necessary for acquiring the handwritten image. More specifically, the first state may be a state in which power is supplied to the camera module 121 , the lighting module 122 , and the first pressure sensor 410 .

Here, the first state may be a state in which a first time has not elapsed without the first pen input being provided after the on state is initiated. The first time may be set in various ways. More specifically, the first time may be a predetermined time, and the first time may be changed by a user's setting. The length of the first time period may be variously provided. Here, as the first time is set shorter, it may be possible to supply the battery 710 economically. In addition, as the first time is set longer, the convenience of the user's handwriting may be increased.

The first pen input is a user input associated with the first pen module. Here, the first pen input is the acquisition of the pressure value of the first pressure sensor 410 , the acquisition of the handwriting image of the pattern detection unit 120 , the user input through the input unit 400 , and the electronic device 3000 through the communication unit 500 . It may include at least one of user input in .

The on state may include a second state that is a standby state. The second state is a state in which power is supplied to some components necessary for acquiring a handwritten image, and may be a state in which power is consumed less than that of the first state. More specifically, the first state may be a state in which power is supplied to the camera module 121 or the lighting module 122 and power is supplied to the first pressure sensor 410 .

Here, the second state is a state set when the first time has elapsed and the second time has not elapsed since the first state. Here, the second time may be variously set. More specifically, the second time may be a predetermined time, and the second time may be changed by a user's setting. The length of the second time period may be variously provided.

In the second state, the controller 800 may reduce the power supplied from the power source 700 to the first pen module 100 compared to the power supplied to the first pen module 100 in the first state.

The on state may include a third state that is an idle state. The third state is a state in which power is supplied to some components necessary for acquiring a handwritten image, and may be a state in which power is consumed less than that of the second state. More specifically, the first state may be a state in which power is not supplied to the camera module 121 and the lighting module 122 and power is supplied to the first pressure sensor 410 . As power is supplied to the first pressure sensor 410 , the controller 800 may determine whether the electronic pen 1000 starts in an on state.

Here, the third state is a state set when the second time elapses after the second state and is not in the off state. In the third state, the controller 800 may reduce the power supplied from the power unit 700 to the first pen module 100 compared to the power supplied to the first pen module 100 in the second state.

Here, the state of the first pen module 100 may be variously applied according to components of the first pen module 100 . More specifically, the respective states of the camera module 121 , the lighting module 122 , and the first pressure sensor 410 may be applied differently.

The off state is a state in which power is not supplied to the first pen module 100 . More specifically, in the off state, the control unit 800 may cut off the power supplied from the power unit 700 to the first pen module 100 . Here, in the OFF state, power may not be supplied to the first pressure sensor 410 . However, when the cap part 310 is removed, power may be supplied to the first pressure sensor 410 .

In addition, power management and state change for the input unit 400 , the output unit 900 , and the communication unit 500 may also be applied to the aforementioned power management and state change for the first pen module 100 .

Various conditions for changing the state of the second pen module 200 may be provided. Here, the state of the second pen module 200 includes a pressure value sensed by the second pressure sensor 420 and a time at which the second pressure sensor acquires the pressure value, whether attachment or detachment of the binding detection sensor is detected, and a magnetic sensor. Various changes may be made based on at least one of whether the cap part 310 is inserted or not and an electrical signal received by the second pen module 200 from the electronic device 3000 .

The on state of the second pen module 200 may be initiated through various methods. According to an embodiment of the present invention, the on state of the second pen module 200 may be initiated when the second pressure sensor 420 senses a pressure value. According to another embodiment of the present invention, the on state of the second pen module 200 may be initiated when the second pen module 200 receives an electrical signal from the electronic device 3000 . According to another embodiment of the present invention, the on state of the second pen module 200 may be initiated when the binding detection sensor detects detachment of the electronic pen 1000 from the electronic device 3000 . According to another embodiment of the present invention, in the ON state of the second pen module 200 , the binding detection sensor detects that the cap part 310 inserted into the second end of the main body 300 is removed from the second end. It can be initiated according to According to another embodiment of the present invention, the on state of the second pen module 200 may be maintained as long as the battery 710 is not discharged.

The on state of the second pen module 200 may include various states. Here, the power supplied to the second pen module 200 may be changed according to the type of the on state of the electronic pen 1000 .

The on state may include a first state that is an operating state. The first state may be a state in which power is supplied to all components necessary for generating an electric field. More specifically, the first state may be a state in which power is supplied to the first electrode 220 and the second electrode 230 .

11 is a view for explaining a state change of an electronic pen according to embodiments of the present invention.

According to FIG. 11 , the state change of the electronic pen 1000 is the first distance d1 between the first electrode 220 and the input surface of the electronic device 3000 and the second electrode 230 and the electronic device 3000 . may be changed based on at least one of the second distance d2 from the input surface of .

The on state may include at least one of a first state that is an operating state, a second state that is a standby state, and a third state that is an idle state. Here, the on state may be changed to a state based on a distance between the second pen module 200 and the input surface of the electronic device 3000 . According to an embodiment of the present invention, the state of the second pen module 200 may be changed based on whether the first electric field generated by the first electrode 220 and having a first effective distance is transmitted to the input surface. have. More specifically, the state of the second pen module 200 is determined by comparing the first distance d1, which is the distance between the first electrode 220 and the input surface of the electronic device 3000, with the length of the first effective distance. can be changed.

According to another embodiment of the present invention, the state of the second pen module 200 may be changed based on the pressure value sensed by the second pressure sensor.

The first state of the second pen module 200 is a state in which a third time has not elapsed without the second pen input being provided after the on state is initiated. The third time is a time during which the second pen input is not provided to the electronic pen 1000 after the on-state of the second pen module 200 is started.

The second pen input means obtaining a pressure value of the second pressure sensor 420 , obtaining a signal of the electronic device 3000 through the second pen module 200 , a user input through the input unit 400 , and the communication unit 500 . It may include at least one of user input through the Here, the second pen input may further include acquiring a response signal to the first electric field and acquiring a response signal to the second electric field. Here, based on the second pressure information due to the acquisition of the pressure value of the second pressure sensor 420 , the response information to the first electric field generated based on the response signal to the first electric field, and the response signal to the second electric field Response information to the generated second electric field may be defined as proximity information.

The first distance is a distance between the first electrode 220 and the input surface of the electronic device 3000 . Here, the first distance may be provided in various ways. As the first distance increases, the reaction speed of the electronic device 3000 with respect to the electronic pen 1000 may increase. According to an embodiment of the present invention, the first distance may be a distance greater than 0 cm and less than 3 cm. In addition, the third time may be provided in various ways. According to an embodiment of the present invention, the third time period may be 30 seconds.

The on state may include a second state that is a standby state. The second state may be a state in which power is supplied to some components necessary for generating an electric field. More specifically, the second state may be a state in which power is supplied to the first electrode 220 or the second electrode 230 . Here, the power consumed in the second state may be less than the power consumed in the first state.

The second state of the second pen module 200 is set when the second pen input is not provided to the second pen module 200 within the third to fourth time after the first state. The fourth time is a time during which the second pen input is not provided to the electronic pen 1000 after the on-state of the second pen module 200 is started.

Here, the fourth time may be set in various ways. More specifically, the fourth time may be a predetermined time, and the fourth time may be changed by a user's setting. The length of the fourth time may be variously provided. Here, the fourth time may be set longer than the third time.

The on state may include a third state that is an idle state. The third state may be a state in which power supplied to the second pen module is further reduced than the second state. More specifically, the third state may be a state in which power is supplied to the first electrode 220 or the second electrode 230 . Here, in the third state, the controller 800 may supply power to the first electrode 220 or the second electrode 230 at regular time intervals.

Also, power may not be supplied to the second pressure sensor 420 in the third state.

The third state of the second pen module 200 is a state set when the second pen input is not provided after the fourth time has elapsed after the second state.

Hereinafter, information stored in the electronic pen and a method of being stored will be described in detail.

The memory 600 may store a preferred color. In this case, the user may designate a preferred color of the electronic pen 1000 in the electronic device 3000 . Preferred colors can be specified in various ways. For example, the preferred color may be the same in the first pen module 100 and the second pen module 200 . As another example, in the electronic pen 1000 , the preferred color of the first pen module 100 and the preferred color of the second pen module 200 may be different.

According to an embodiment of the present invention, when a preferred color is set, a color recognized as a color used by the first pen module 100 that is first input after the electronic pen 1000 is powered on may be designated as the preferred color. .

According to another embodiment of the present invention, when a preferred color is set, the color of the second pen module 200 first input after the electronic pen 1000 is powered on may be designated as the preferred color.

According to another embodiment of the present invention, when a preferred color is set, when an input for selecting a preferred color occurs in the electronic pen 1000 , the set color of the electronic pen 1000 may be changed to the preferred color. In this case, the input for selecting the preferred color may be a preset gesture. Various preset gestures may be provided. According to an embodiment, the preset gesture may be an operation in which pressure is applied to any one of the first pressure sensor 410 and the second pressure sensor 420 . According to another embodiment, it may be an operation in which an input is applied to a button of the input unit 400 .

The memory 600 may store various types of pen type information used in the first pen module 100 and the second pen module. The pen type information includes information used to implement writing input to the medium 2000 through the first pen module 100 in the electronic device 3000 and input to the electronic device 3000 through the second pen module 200 . The written handwriting is information used to be implemented in the electronic device 3000 . Here, the pen type information may include pen color information, brush type information, pen width information, and twisting information.

The brush type information is information on the shape of the writing trajectory of the electronic pen 1000 obtained by the electronic device 3000 . Here, the shape of the brush type may be provided in various ways. For example, the brush type may be provided in various forms such as a stroke form, a spray form, a brush form, a pencil form, and the like. In addition, various shapes of the brush type may be provided. For example, the brush type may be provided in various shapes, such as a circle, a square, and a triangle.

The pen area information is area information of an input of the electronic pen 1000 . Here, the pen width information may be provided in various ways.

Here, the twisting information is information about the twist of the electronic pen 1000 , and is information used by the electronic device 3000 to express a writing trajectory of the electronic pen 1000 . More specifically, when the electronic device 3000 obtains position information of the electronic pen 1000 with respect to the electronic device 3000 , the electronic pen is based on a difference in positions between the first electrode 220 and the second electrode 230 . The distortion of (1000) can be judged. According to an embodiment of the present invention, the electronic pen 1000 is positioned in a tilted state with respect to the input surface of the electronic device 3000 , and the second pen nib 210 is brought into contact with the input surface of the electronic device 3000 . In this state, the electronic pen 1000 may be rotated. In this case, since the position of the input surface of the electronic device 3000 receiving the first electric field is the same, but the position of the input surface of the electronic device 3000 receiving the second electric field is different, the electronic pen 1000 is twisted Twisting information for determining may be generated by the control unit 800 and stored in the memory 600 .

The memory 600 may store at least one of color information used in the first pen module 100 and the second pen module 200 .

According to an embodiment of the present invention, the memory 600 may store information on a color most recently used in the first pen module 100 . The most recently used color may mean a color that is not changed to another color after the user inputs the color used by the first pen module 100 in the electronic device 3000 .

According to another embodiment of the present invention, the memory 600 may store information on a color most recently used in the second pen module 200 . Based on this, the controller 800 may determine at least one of a color used in the first pen module 100 and a color used in the second pen module 200 .

The memory 600 may store user setting information. The user setting information includes at least one of an optical pen ID, an active electrostatic stylus ID, a Bluetooth address, and stylus setting information.

The memo area identification information is a signal enabling identification of the memo area, which is at least a partial area of the writing trace included in the pen data. Here, the memo area identification information may be generated based on at least one of an input to the electronic pen 1000 , a time when an input to the electronic pen 1000 is provided, and unit cell information.

The memo information is information processed so that the user's writing trajectory acquired by the electronic pen 1000 has a special purpose. More specifically, the user's writing trajectory obtained by the first pen module 100 of the electronic pen 1000 includes input to the electronic pen 1000 , a time at which an input to the electronic pen 1000 is provided, and unit cell information. may be converted into memo information based on at least one of

The memo area is an area of at least a portion of the handwriting image, and is an area generated by processing a user's handwriting trace obtained by the electronic pen 1000 to have a special purpose.

Hereinafter, the structure of the electronic pen 1000 according to an embodiment of the present invention will be described.

12 is a schematic perspective view illustrating a state in which a cap provided in the electronic pen according to an embodiment of the present invention is inserted into a second end of the main body.

According to FIG. 12 , the electronic pen 1000 according to an embodiment of the present invention includes a first pen nib 110 including a writing material used for a medium 2000 , and the first pen nib 110 is inserted and supported. The main body 300, the first display 902 installed at the second end of the main body 300, and a cap for protecting at least one of the first pen nib 110 and the second pen nib 210 in the cap portion inserted state may include

Here, the cap part inserted state may mean a state in which writing on the medium 2000 is impossible because the first pen nib 110 is not exposed to the outside. In addition, the cap part inserted state may mean a state in which transmission of an electric field signal to the electronic device 3000 is impossible by shielding the electric field emitted from the second pen nib 210 .

The first pen nib 110 is a component that enables writing on the medium 2000, and is inserted into the first pen tip directly contacting the medium 2000 and the main body 300 so that the first pen nib 110 is formed. It may include a first pen stand 112 to be supported. Here, the first pen nib 110 may be inserted into the first end of the main body 300 .

The second display 902 is a component that provides information on the operating state of the electronic pen 1000 to the user, and may include an LED lamp. Here, the second display 902 may be installed at a position closer to the second end than the first end. In this case, the user may recognize the information on the second display 902 as information on the second pen module 200 .

The main body 300 is a component into which the first pen nib 110 is inserted and supported, and may refer to a type of grip part that a user can grip by hand. The main body 300 may include a body pipe 320 and a housing 330 . The body pipe 320 and the housing 330 will be described later.

The cap part 310 may be inserted into the first end of the main body 300 in the cap part inserted state, and may have a predetermined internal space to protect the first pen nib 110 . Here, the cap part 310 may be inserted into the second end of the main body 300 in the cap part inserted state, thereby protecting the second pen nib 210 .

However, when the first pen nib 110 enables writing by the first pen nib 110 , the cap part 310 does not necessarily need to be inserted into the second end of the main body 300 , and is separated from the main body 300 in a predetermined space. It is free even if it is placed in Likewise, the cap part 310 is not necessarily inserted into the first end of the main body 300 when it is possible to provide an electric field or a magnetic field to the electronic device 3000 by the second pen nib 210, It may be separated from the main body 300 and disposed in a predetermined space.

Meanwhile, although not shown in FIG. 12 , the second nib 210 may be inserted into the first end of the main body 300 together with the first nib 110 . Here, the first nib 110 and the second nib 210 may be provided in a manner that is switched by a physical button. Also, the first nib 110 and the second nib 210 may be provided in an interchangeable manner. Also, here, the first nib 110 and the second nib 210 may be arranged side by side at the first end of the main body 300 .

On the other hand, the main body 300 and the cap portion 310 may be formed in a circular or polygonal transverse cross section, hereinafter, a case in which the transverse cross section is formed in a polygonal shape will be described as an example.

13 is an internal exploded view of an electronic pen according to embodiments of the present invention.

13 , the electronic pen 1000 according to embodiments of the present invention includes a first pen module 100 , a second pen module 200 , a body pipe 320 , a housing 330 , and a first coupling ring. 306 , a second coupling ring 307 , a battery 710 , a USB cover 351 , a power button 401 and a function button 402 .

The first pen module 100 is a component that allows the electronic pen 1000 to acquire first location information that is location information of the electronic pen 1000 with respect to the medium 2000 . The first pen module 100 may include a first pen nib 110 and a pattern sensing unit 120 . The first pen module 100 may be disposed closer to the first end than the second end of the main body 300 .

The second pen module 200 is a component that allows the electronic device 3000 to acquire second location information that is location information of the electronic pen 1000 with respect to the electronic device 3000 . The second pen module 200 may include a first electrode 220 and a second pen nib 210 . Here, the second pen module 200 may be disposed closer to the second end than the first end of the main body 300 . On the other hand, as described above, when the first pen nib 210 and the second pen nib 220 are disposed at the first end of the main body 300 , the second pen module 200 and the first pen module 100 and Together they may be disposed close to the first end. A detailed description of the components of the second pen module 200 will be provided later.

The body pipe 320 is a grip part that the user of the electronic pen 1000 can grip by hand.

The body pipe 320 may have an annular cross-section or a polygonal hollow interior, and may extend in the longitudinal direction. Here, the body pipe 320 includes a hollow housing 330 may be located therein. The housing 330 is formed to extend in the longitudinal direction, and the space into which the USB cover 351 , the power button 401 and the function button 402 are inserted may be formed with an opening.

The output unit 900 may be disposed in the body pipe 320 . According to an embodiment of the present invention, at least one of the first display 901 and the first display 902 may be disposed on the body pipe 320 .

The body pipe 320 may be formed of at least one of a first material and a second material. The first material is a material that shields the electric field. For example, a metal such as aluminum may be provided as the first material. The second material is a material capable of passing an electric field. For example, a synthetic resin including plastic may be provided as the second material.

According to an embodiment of the present invention, a portion of the body pipe 320 adjacent to the communication unit 500 may be formed of the second material, but a portion not adjacent to the communication unit 500 may be formed of the first material. In this case, a signal generated from the communication unit 500 may be transmitted to the outside while providing an aesthetic feeling to the user by using the metallic exterior. According to another embodiment of the present invention, the body pipe 320 may be entirely formed of the second material.

Referring to FIG. 13 , the housing 330 is a component in which the first pen module 100 and the battery 710 are disposed. Here, the housing 330 may include a first nib accommodating part 303 in which the first nib 110 is supported. In the electronic pen 1000 according to the present invention, the first nib 110 may be freely replaced, and the first nib 110 may be inserted into the first nib receiving part 303 formed in the housing 330 . Here, the first pen nib accommodating part 303 may include a first pen holder fixing part for fixing the first nib 110 by making the first pen nib 112 to be press-fitted.

The housing 330 may be formed of at least one of a first material and a second material. The first material is a material that shields the electric field. For example, a metal such as aluminum may be provided as the first material. The second material is a material capable of passing an electric field. For example, a synthetic resin including plastic may be provided as the second material.

According to an embodiment of the present invention, a portion of the housing 330 adjacent to the communication unit 500 may be formed of the second material, but a portion not adjacent to the communication unit 500 may be formed of the first material. In this case, a signal generated from the communication unit 500 may be transmitted to the outside while providing an aesthetic feeling to the user by using the metallic exterior. According to another embodiment of the present invention, the housing 330 may be entirely formed of the second material.

The USB cover 351 is configured to protect the USB terminal 350 to be described below, and may be formed of a material having elasticity. The USB cover 351 is removed to connect the USB to at least one of the electronic pen 1000 and the external power source and the electronic device 3000 when the user uses USB for at least one of data transmission and charging of the electronic pen 1000 . can be

The power button is a device that receives a user's input, and the control unit 800 of the electronic pen 1000 supplies power to the components of the electronic pen 1000 from the power supply unit 700 based on the input to the power button. supply can be controlled.

According to an embodiment of the present invention, when power is not supplied to the components of the electronic pen 1000 , the user provides an input to the electronic pen 1000 through the power button 401 , thereby generating the power supply unit 700 . Power may be supplied to the components of the electronic pen 1000 from the According to another embodiment of the present invention, power may be supplied to the components of the electronic pen 1000 from the power supply unit 700 based on an input from the power button 401 and another input through the other input unit 400 . . For example, when the pressure sensor acquires a pressure value in a state in which the power button 401 is input, power can be supplied to the components of the electronic pen 1000 from the power supply unit 700 .

Of course, here, the power button 401 is shown as an input device in the form of a button, but it detects or inputs a user input such as a proximity sensor composed of an illuminance sensor or an infrared sensor for detecting user approach, and a touch sensor for detecting a user's touch. It may be provided as various types of input means.

The function button is a device that receives a user's input, and the controller 800 of the electronic pen 1000 may control the operation of the electronic pen 1000 based on the input to the function button.

According to an embodiment of the present invention, the function button may be implemented in the form of a two button including a physically connected first button and a second button. In this case, the state of the function button is a first button state in which an input to the first button is provided, an input to the second button is not provided, an input to the second button is provided, and an input to the first button is provided. may include a second button state that is not provided, a third state in which inputs to the first and second buttons are provided, and a fourth state in which inputs to the first and second buttons are not provided. According to another embodiment of the present invention, the function button may include physically separated first and second buttons.

Of course, here, the function button is shown as a button-type input device, but various types of sensing or receiving user input, such as a proximity sensor composed of an illuminance sensor or an infrared sensor for detecting a user's approach, and a touch sensor for detecting a user's touch may be provided as an input means of

The first coupling ring 306 is a device positioned between the housing 330 and the body pipe 320 . The shaking of the body pipe 320 is reduced through the first coupling ring 306 , and the user's grip feeling can be improved.

The second coupling ring 307 is a device positioned between the body pipe 320 and the second pen module 200 . The shaking of the body pipe 320 is reduced through the second coupling ring 307 , and the user's grip feeling can be improved.

The battery 710 is a device that provides power necessary for the operation of each component of the electronic pen 1000 . The battery 710 may be disposed in a hollow inside the housing 330 . Here, the battery 710 is fixed to the housing 330 so that shaking due to a user's input can be minimized.

14 is an exploded schematic perspective view illustrating the main body 300 of the electronic pen 1000 according to embodiments of the present invention, and FIG. 15 is another view of the electronic pen 1000 according to embodiments of the present invention. This is an internal exploded view.

14 and 15 , the electronic pen 1000 according to an embodiment of the present invention includes a first pen nib 110 , a light-transmitting member 304 , a camera module 121 , a haptic unit 910 , and a first substrate. 341 and a second substrate 342 may be included.

The first pen nib 110 is a component that enables writing on the medium 2000 . The first pen nib 110 is located at the first end of the first pen nib 110 and is located in the opposite direction to the first pen tip and the first end where writing is made by directly contacting the medium 2000, and the main body 300 ) may include a first pen stand 112 inserted into the first pen nib 110 to be supported.

Here, the first pen stand 112 may be inserted and supported in the first pen nib receiving part 303 located at the first end of the housing 330 . In addition, the first pen stand 112 is coupled to the first pen stand holder 331 through the second end in the opposite direction to the first pen tip. Accordingly, the first pen nib 110 resists an external force in the width direction (YZ direction) through the first pen nib receiving part 303 , and the external force in the longitudinal direction (X direction) through the first pen holder 331 . can resist

The camera module 121 is a device for acquiring an image for a code pattern provided in the medium 2000 or a reflection pattern according to the medium 2000 surface or material, and the lighting module 122 is the camera module 121 . It is a device for irradiating light of a predetermined specific wavelength toward the medium 2000 so that an image of a code pattern or a reflection pattern can be obtained through the.

The camera module 121 and the lighting module 122 may be coupled to the first substrate 341 . Here, the camera module 121 may be coupled to the first substrate 341 through the camera bracket 123 . According to an embodiment of the present invention, the camera module 121 and the lighting module 122 may be physically coupled. According to another embodiment of the present invention, the camera module 121 and the lighting module 122 may be physically spaced apart. Here, as the camera module 121 and the lighting module 122 are coupled to the first substrate 341 , the camera module 121 and the lighting module 122 may receive power from the battery 710 .

Here, the camera module 121 may acquire an image of the code pattern or the reflection pattern through the light-transmitting member 304 . Also, the lighting module 122 may irradiate light of a predetermined specific wavelength to the medium 2000 through the light-transmitting member 304 .

The light transmitting member 304 is a component that selectively passes only light of a predetermined frequency band. According to an embodiment of the present invention, the light-transmitting member 304 may be an infrared filter that selectively passes only an infrared band.

The light-transmitting member 304 may be located at a first end of the housing 330 adjacent to the first pen nib 110 receiving part.

The haptic unit 910 is a device that generates vibration that can be recognized through a user's tactile sense. Here, the haptic unit 910 may include a motor to generate vibration. Here, the haptic unit 910 may include a vibrating unit. The haptic unit 910 may be located inside the housing 330 to generate vibration based on a signal from the controller 800 .

The substrate is a component on which the components of the electronic pen 1000 according to the present invention are positioned, and the control unit 800 may be disposed on the substrate and electrically connected to the substrate. Here, the substrate may be coupled to the housing by a substrate fixing screw 343 .

A single substrate may be implemented in the electronic pen 1000 according to the present invention, but a plurality of substrates may be implemented. For example, as shown in FIG. 15 , the first substrate 341 and the second substrate 342 . ) can also be implemented.

Hereinafter, for convenience of description, a case in which the substrate includes two substrates will be described as an example.

Specifically, the substrate includes a first substrate 341 disposed close to the first end of the main body 300 to which the first pen nib 110 is exposed, and a second end disposed close to the second end opposite to the first end. Two substrates 342 may be included. Here, the control unit 800 is disposed on the substrate, and the control unit 800 may control the components of the electronic pen 1000 by transmitting electrical signals to the components of the electronic pen 1000 through the substrate.

Here, the second board 342 may include a flexible printed circuit board, and may be electrically connected to the first board 341 through the flexible printed circuit board.

The first substrate 341 may be positionally fixed to the housing 330 provided in the electronic pen 1000 . Here, the first substrate 341 may be fixed to the housing 330 at a position closer to the first end than the second end of the housing 330 . Here, the first substrate 341 may be coupled to the housing 330 through a substrate fixing screw. As the first substrate 341 is coupled to the housing 330 through the substrate fixing screw, a clearance generated by the vibration of the haptic unit 910 may be reduced.

A camera module 121 and a lighting module 122 may be connected to the first substrate 341 . The controller 800 may transmit a signal for controlling the camera module 121 and the lighting module 122 through the first substrate 341 . The battery 710 may supply power to the camera module 121 and the lighting module 122 through the first substrate 341 .

A haptic unit 910 may be connected to the first substrate 341 . The controller 800 may transmit a signal for controlling the haptic unit 910 through the first substrate 341 . The battery 710 may supply power to the haptic unit 910 through the first substrate 341 .

The second substrate 342 will be described in detail below with reference to FIGS. 16 and 17 .

16 is a perspective view of a substrate of an electronic pen according to embodiments of the present invention, and FIG. 17 is an exploded view of a substrate of an electronic pen according to embodiments of the present invention.

16 and 17 , the second board 342 may include a first connector 344 and a USB terminal 350 . In addition, the first pressure sensor 410 and the second pressure sensor 420 may be connected to the second substrate 342 .

The second substrate 342 may be positionally fixed to the housing 330 provided in the electronic pen 1000 . Here, the second substrate 342 may be fixed to the housing 330 at a position closer to the second end than the first end of the housing 330 .

The second board 342 may be electrically connected to the first board 341 through the first connector 344 . More specifically, the second board 342 includes a flexible printed circuit board, and a first connector 344 is disposed on the flexible printed circuit board, so that the first board 341 and the second board can be electrically connected. have.

The second substrate 342 may include a USB terminal 350 . The USB terminal may be fixed to the housing 330 by a USB bracket. In this case, as the USB terminal 350 is fixed to the housing 330 , the second substrate 342 may also be fixed to the housing 330 . Here, the USB terminal 350 may be fixed to the USB bracket 352 by the USB bracket fixing screw 353 . Here, the USB terminal may be exposed to the outside without being accommodated in the hollow of the housing 330 .

A first pressure sensor 410 may be connected to the second substrate 342 . Here, the first pressure sensor 410 may be connected to a first end of the second substrate 342 that is an end adjacent to the first connector 344 .

The controller 800 may acquire a pressure value sensed by the first pressure sensor 410 through the second substrate 342 . The battery 710 may supply power to the first pressure sensor 410 through the second substrate 342 .

A second pressure sensor 420 may be connected to the second substrate 342 . Here, the second pressure sensor 420 may be located at the second end of the second substrate 342 spaced apart from the first connector 344 rather than the first end.

The controller 800 may acquire a pressure value sensed by the second pressure sensor 420 through the second substrate 342 . The battery 710 may supply power to the second pressure sensor 420 through the second substrate 342 .

The second substrate 342 may obtain a user input through the power button 401 . Here, the second substrate 342 may be electrically connected to the power button 401 to obtain a signal according to the user's input of the power button 401 . More specifically, the second substrate 342 may include a power button receptor 401a to obtain a user input through the power button 401 . Here, the controller 800 may control the supply of power to the components of the electronic pen 1000 based on a signal from the power button receptor.

The second substrate 342 may obtain a user input through a function button. Here, the second substrate 342 may be electrically connected to the function button to obtain a signal according to the user's input of the function button. More specifically, the second substrate 342 may include a function button receptor 402a to obtain a user input through the function button. Here, the controller 800 may control the operation of the electronic pen 1000 based on a signal from the function button receptor.

The second substrate 342 may include fins. Here, the pin includes a spring therein, and means a conductive pin whose length can be changed. For example, the pin may be provided as a pogo pin. Here, the second substrate 342 may be electrically connected to the second pen module 200 through pins. The pin includes a first pin 354 disposed at a position contactable with a ground plate 327 and a second pin 355 disposed at a location contactable with a conductive plate 328 . .

18 is a schematic perspective view of the second pen module 200 according to embodiments of the present invention, and FIG. 19 is an internal exploded view of the second pen module 200 according to embodiments of the present invention.

18 and 19 , the second pen module 200 according to an embodiment of the present invention includes a second pen nib 210 , a second pen head 240 , a second pen holder 243 , and a second pen. holder spring 244 and a second display 902 .

The second nib 210 is a component that provides an electric field to the electronic device 3000 including an electrode, and the first electrode 220 may be positioned on the second nib 210 . More specifically, the first electrode 220 may be positioned at the first end of the second pen nib 210 exposed to the outside. Here, the second pen nib 210 may be formed of a conductive material to provide a first electric field to the input surface of the electronic device 3000 . Here, the second pen nib 210 may be formed of a second material that is a material capable of passing an electric field. For example, a synthetic resin including plastic may be provided as the second material.

The second pen head 240 is a component that protects the second pen nib 210 . Here, the second pen nib 210 may be protected from external impact by the second pen head 240 . In addition, the second pen head 240 has a first electric field and a second electric field so that a region to which at least one of the first electric field and the second electric field is applied to the input surface of the electronic device 3000 is concentrated on the first end of the second pen nib 210 . 2 It may be formed of a material having a lower conductivity than the pen nib 210 . According to an embodiment of the present invention, the second pen head 240 may be formed of a first material, which is a material for shielding an electric field. For example, a metal such as aluminum may be provided as the first material.

The second pen nib 210 may be coupled to the second pen holder 243 to increase a user's stability when writing. Here, the second pen holder 243 may be formed of a second material, and the second pen nib 210 may be electrically connected to the second substrate 342 through the second pen holder 243 . Here, the second pen holder 243 may be coupled to the second pen head 240 .

The second pen holder spring 244 is formed of an elastic material, and when an external force is applied to the second pen nib 210 , it contracts by the elastic force to perform damping. Also, the second pen holder spring 244 may be formed of a second material to electrically connect the second pen holder 243 and the first pen joint 241 .

The first pen joint 241 is coupled to the second pen head 240 to prevent shaking of the second pen nib 210 due to a user input. Here, the first pen joint 241 may be coupled to the second pen joint 242 by the first pen joint fixing screw 245 . Also, the first pen joint 241 may be coupled to the first pen head and the second pen holder 243 through an interference fit.

here. A conductive plate 328 formed of a second material may be disposed in the first pen joint 241 to electrically connect the second substrate 342 and the second pen holder spring 244 . Also, a ground plate 327 made of a first material may be disposed in the first pen joint 241 to reduce electrical noise.

The second pen joint 242 is coupled to the first pen joint 241 to prevent shaking of the second pen module 200 due to a user input. The second pen joint 242 may be coupled to the housing 330 through the second pen joint fixing screw 246 . Accordingly, the second pen module 200 may be coupled to the housing 330 through the second pen joint 242 . Here, the second pen joint 242 may have a hollow inside, so that the conductive plate 328 may be disposed therein.

According to an embodiment of the present invention, in the second pen module 200 , an electric field is generated through the conductive plate 328 , the second pen holder spring 244 , the second pen holder 243 , and the second pen nib to the electronic device. (3000) may be provided on the input surface. More specifically, an electrical signal generated from the controller 800 is transmitted through the second substrate 342 to the conductive plate 328 , the second pen holder spring 244 , the second pen holder 243 , and the second pen nib 210 . ) through the first electrode 220 may be transmitted. Here, the electronic device 3000 may determine position information of the electronic pen 1000 with respect to the electronic device 3000 based on the first electric field generated by the first electrode 220 . In addition, the electronic device 3000 is a second electrode 230 disposed at a spaced apart from the first electrode 220 disposed at the first end of the first pen nib 110 to the second end opposite to the first end. Angular information of the electronic pen 1000 with respect to the electronic device 3000 may be determined based on the second electric field generated in .

According to an embodiment of the present invention, the second pen module 200 includes a resonance circuit to receive a magnetic field from the electronic device 3000 without a separate power supply to generate a current, and based on this, the second pen module 200 is supplied to the electronic device 3000 without a separate power supply. It can emit a magnetic field. In this case, the electronic device 3000 may receive the magnetic field from the electronic pen 1000 to determine location information of the electronic device 3000 of the electronic pen 1000 .

According to an embodiment of the present invention, the power stored in the battery 710 is supplied to the first electrode 220 through the conductive plate 328 , the second pen holder spring 244 , the second pen holder 243 , and the second pen nib. ) and the second electrode 230 may be supplied to at least one.

The first display 902 is a device that provides information on the operating state of the electronic pen 1000 to a user, and may be installed adjacent to the second end of the main body 300 . More specifically, the first display 902 may be coupled to the second pen joint 242 . Here, the first display 902 may be electrically connected to the second substrate 342 to output information on the operating state of the electronic pen 1000 based on an electrical signal of the controller 800 . Also, the first display 902 may receive power from the battery 710 through the second substrate 342 .

20 is a front view and a rear view of the electronic pen 1000 according to embodiments of the present invention.

Referring to FIG. 20 , the first pen nib 110 may be eccentrically disposed. More specifically, the first pen nib 110 may be arranged eccentrically from the center of the transverse section of the main body 300 toward the vertex of the transverse section of the main body 300 . Here, the first pen nib 110 is disposed at a position spaced apart from the center of the lateral cross-section of the electronic pen 1000 in order to obtain the code pattern of the pattern sensing unit 120 , but the electronic pen 1000 is used for smooth writing by the user. ) may be located at the center of the transverse cross-section of the electronic pen 1000 .

According to an embodiment of the present invention, the first pen nib 110 is eccentric from the center of the lateral cross-section of the main body 300 toward the vertex of the lateral cross-section of the main body 300, the first fan holder holder is supported by , and the second pen nib 210 may be fixed by the second pen holder 243 at the center of the lateral cross-section of the main body 300 . Here, the longitudinal axis of the first pen nib 110 and the longitudinal axis of the second nib 210 may be positioned parallel to each other and spaced apart from each other.

Of course, FIG. 20 is only one embodiment of the arrangement of the first nib 110 and the arrangement of the second nib 210 of the present invention, and in the main body 300, the first nib 110 and the second nib 210 may be disposed in a variety of ways. That is, according to another embodiment of the present invention, the first nib 110 and the second nib 210 may be disposed to share the same longitudinal axis. In addition, according to another embodiment of the present invention, as described above, the first nib 110 and the second nib 210 may be installed on the same end of the main body 300, and at this time, not shown in FIG. Although not shown, both the first pen nib 110 and the second nib 210 may be included in the front or rear surface of the electronic pen 1000 .

The main body 300 may have a constant or variable diameter cross-section. According to an example of this embodiment, as shown in FIG. 20 , the cylindrical cross-section of the main body 300 maintains a substantially constant diameter from the first nib 110 to the second nib 210 . In other embodiments, the main body may include a variable cross-section. According to another example of this embodiment, the diameter of the main body 300 may be smaller as it is closer to the first nib 110 than to the second nib 210 . According to another example of this embodiment, the diameter of the main body 300 may protrude outward from the middle of the main body between the first nib 110 and the second nib 210 .

The lateral cross section of the main body 300 may be formed in various ways. According to an embodiment of the present invention, as shown in FIG. 20 , the lateral cross section may be formed in a triangular shape with rounded vertices. According to another embodiment of the present invention, the transverse cross-section may be formed in a circular shape.

Hereinafter, an embodiment of a method for real-time reproduction of content written by a user according to the present invention will be described.

As described above, when pen data is generated based on the operation of the first pen module 100 , the electronic pen 1000 stores the pen data in the memory 600 or through the communication unit 500 , the electronic device. Pen data can be transmitted to (3000).

For example, when the electronic pen 1000 is in a state capable of communicating with the electronic device 3000 , the electronic pen 1000 may generate pen data and directly transmit the pen data to the electronic device 3000 in real time, but if When the electronic pen 1000 is not in a state capable of communicating with the electronic device 3000 , the electronic pen 1000 generates pen data and stores it in the memory 600 , and then communicates with the electronic device 3000 . , the stored pen data may be transmitted to the electronic device 3000 .

In addition, based on the electric field generated by the second pen module 200 , the electronic device 3000 sets the position of the electronic pen 1000 with respect to the electronic device 3000 and the electronic pen with respect to the input surface of the electronic device 3000 . The angle of (1000) can be determined.

21 is a view for explaining an embodiment of reproducing a user's handwriting in real time according to the present invention. According to FIG. 21 , the electronic device 3000 reproduces the content that the user is taking notes on the medium 2000 in real time based on the pen data received from the electronic pen 1000 and displays it on the display of the electronic device 3000 . can do.

Hereinafter, a method of reproducing what a user is writing in real time and displaying it on a display will be described. For the following description, it is assumed that the electronic pen 1000 and the electronic device 3000 are connected to each other in a communicable state, and the electronic pen 1000 transmits the pen data generated as described above in real time to the electronic device ( 3000) is assumed. The electronic device 3000 may obtain information on the target medium 2000 on which the user is taking notes based on identification information of the medium 2000 included in the pen data received from the electronic pen 1000 . .

For example, the electronic device 3000 may determine whether the target medium 2000 that the user is taking notes is the medium 2000 having a specific format for a special purpose, or a part of a product provided in the form of a book or note. Whether or not it is the medium 2000 can be checked.

In addition, if the target medium 2000 is a medium 2000 that forms a part of a product provided in the form of a book or note, the target medium 2000 is located on several pages of the book or note medium (2000) You can check whether you are aware or not.

The electronic device 3000 displays, based on the obtained identification information of the medium 2000 , a template stored in advance for the target medium 2000 or handwritten content that the user has already written for the target medium 2000 , etc. can be displayed through

At this time, the pre-stored template for the target medium 2000 is meant to include text, images, shapes, symbols, etc. already printed in the target medium 2000 in addition to the code pattern, for example, When the target medium 2000 forms a part of a note, a plurality of lines may be printed on the target medium 2000 for easy writing by the user, and information such as that the plurality of lines are printed is provided. It may be included in the previously stored template information for the target medium 2000 . As another example, if the target medium 2000 forms a part of a notebook-like form, a specific date such as February 28, 2019 may be printed on the target medium 2000. As such, the target medium The fact that special information is printed in (2000) may also be included in the predetermined template information. Hereinafter, for convenience, an image displayed for the target medium 2000 including the aforementioned template information may be referred to as a medium image.

Next, the electronic device 3000 may generate stroke data corresponding to the trajectory the user is taking notes, to be displayed through the display, based on location information and time information included in the received pen data. In order to generate the stroke data, at least one unit pen data may be used.

When the stroke data is generated, the electronic device 3000 may reproduce the trajectory written by the user with respect to the target medium 2000 at a corresponding position on the predetermined template displayed on the display as it is, according to the generated stroke data. . 21 illustrates that the content written by the user on the target medium 2000 is reproduced on the display of the electronic device 3000 in real time.

When the user's handwritten content is reproduced through the electronic device 3000 , the trajectory of the user's handwritten content, the location of the user's handwritten content with respect to the target medium 2000, and the like, are the first information included in the pen data information. Based on the location information, it can be accurately reproduced.

Hereinafter, for convenience of explanation, it may be said that the operation of the electronic device 3000 in the 'reproduction mode' according to an embodiment of reproducing the user's handwriting according to the present invention in real time.

22 is a flowchart of a method for real-time reproduction of content written by a user according to an embodiment of the present invention.

Referring to FIG. 22 , the real-time reproduction method of content written by a user acquires pen data (S110), acquires information on a target medium 2000 based on the acquired pen data (S120), and and displaying a medium 2000 image corresponding to the medium 2000 ( S130 ), and reproducing the user's handwriting on the medium 2000 image based on the acquired pen data ( S140 ).

The step of reproducing the user's handwriting ( S140 ) may include reproducing the user's handwriting at a corresponding position on the medium 2000 image in real time based on the stroke data generated from the pen data.

Accordingly, the electronic device 3000 may reproduce the user's handwriting in real time based on the pen data received from the electronic pen 1000 and display it through the electronic device 3000 .

Since the description corresponding to each step has been described in detail above, a detailed description thereof will be omitted here.

23 is a view for explaining an embodiment of determining the location information of the electronic device of the electronic pen according to the present invention. Referring to FIG. 23 , the electronic device 3000 may receive stylus data from the electronic pen.

Based on the pen data, the content that the user is writing on the medium 2000 may be reproduced in real time and displayed on the display of the electronic device 3000 .

Also, the electronic pen 1000 may transmit stylus data to the electronic device 3000 using at least one of the second pen module and the communication unit 500 .

The stylus data is electrical information used by the electronic device 3000 to obtain a user input.

The stylus data may include angle information, second pressure information, second color information, memo information, and the like.

The second pressure information is pressure information output from the second pressure sensor when an electrical signal used to generate one unit of stylus data is acquired or when one unit of stylus data is generated.

The second color information is information on a color of a stroke input to the electronic pen 1000 recognized by the controller 800 or the control module 3500 . More specifically, the second pen module 200 of the electronic pen 1000 only transmits an electrical signal to the electronic device 3000 and cannot leave a visible trace like an ink pen. However, according to an embodiment of the present invention, stylus data reflecting color information may be transmitted to the electronic device 3000 based on a setting change of the electronic device 3000 . In this case, the color of the stroke displayed on the electronic device 3000 may be changed.

The angle information is information that reflects the angle between the input surface of the electronic device 3000 and the electronic device 3000 . More specifically, the angle information is to be generated using the difference between the position where the first electric field is detected and the position where the second electric field is detected and the difference in the distance between the first electrode 220 and the second electrode 230 on the input surface. can According to an embodiment of the present invention, the controller 800 of the electronic pen 1000 may generate angle information and transmit the generated angle information to the electronic device 3000 . According to another embodiment of the present invention, the controller 800 of the electronic pen 1000 may control a position at which the first electric field is detected, a position at which the second electric field is detected, and the first electrode 220 and the second electrode on the input surface. The distance difference of 230 may be transmitted to the electronic device 3000 , and the electronic device 3000 may generate angle information based on the distance.

Also, according to FIG. 23 , the electronic device 3000 may determine location information of the electronic pen 1000 with respect to the electronic device 3000 based on the electric field received from the electronic pen 1000 .

The electronic device 3000 may receive a user input from the input module 3100 to determine second position information of the electronic pen 1000 on the input surface of the electronic device 3000 . More specifically, the electronic device 3000 may include a capacitive touch sensor to sense an electric field. Here, the electronic device 3000 is a second position indicating the position of the electronic pen 1000 with respect to the electronic device 3000 based on the first electric field obtained through the second pen module 200 of the electronic pen 1000 . information can be judged.

According to an embodiment, the electronic pen 1000 may generate a first electric field having a first effective distance. Here, the electric field may intersect the input surface when the electronic pen 1000 is placed on the input surface of the electronic device 3000 . The electronic device 3000 may detect the first electric field and determine the position of the electronic pen 1000 based on the detected position of the first electric field.

Here, the electronic device 3000 may include a sensor layer capable of detecting an electric field generated by the electronic pen 1000 . Here, the sensor layer may include a plurality of capacitive sensing electrodes. The capacitive sensing electrodes may be located on the input surface or on any suitable layer within the input surface.

Here, the electronic device 3000 may generate response information to the first electric field based on the first electric field generated by the electronic pen 1000 . Here, response information to the first electric field may be transmitted to the electronic pen 1000 . According to an embodiment, response information to the first electric field may be transmitted to the second pen module 200 . According to another embodiment, response information to the first electric field may be transmitted to the communication unit 500 .

24 is a flowchart of a method for determining second location information of an electronic pen according to an embodiment of the present invention. Referring to FIG. 24 , the method for determining the second position information of the electronic pen 1000 includes receiving a first electric field (S210), determining a first electric field crossing region (S220), and using the electronic device based on the first electric field crossing region (S220). and determining ( S230 ) second location information of the pen 1000 .

Here, the first electric field crossing region is a region in which a plurality of conductors receiving the first electric field overlap. More specifically, when the electronic pen 1000 approaches the input surface of the electronic device 3000 , the input module 3100 of the electronic device 3000 receives the first electric field generated by the first electrode 220 . do. In this case, the first electric field crossing region is a region receiving the first electric field among the input modules 3100 of the electronic device 3000 .

Here, the electronic device 3000 may determine the center of the first electric field crossing region as the second position of the electronic pen 1000 . In this case, the second location information is determined as the center of the first electric field crossing region.

Since the description corresponding to each step has been described in detail above, a detailed description thereof will be omitted here.

23 , the electronic device 3000 determines angle information of the electronic pen 1000 with respect to the input surface of the electronic device 3000 based on the first electric field and the second electric field received from the electronic pen 1000 . can do.

The angle information is information that reflects the angle between the input surface of the electronic device 3000 and the electronic device 3000 . According to FIG. 11 , the angle information uses the distance d3 between the position where the first electric field is detected and the position where the second electric field is detected and the difference between the distance between the first electrode 220 and the second electrode 230 on the input surface can be created by That is, since the first electrode 220 and the second electrode 230 are fixed, the distance between the first electrode 220 and the second electrode 230 is provided as a predetermined value. In this case, the distance between the position where the first electric field is detected and the position where the second electric field is detected on the input surface may be changed according to an angle of the electronic pen 1000 with respect to the input surface of the electronic device 3000 . Therefore, the angle of the electronic pen 1000 with respect to the input surface of the electronic device 3000 may be determined based on the distance between the position at which the first electric field is detected and the position at which the second electric field is detected.

According to an embodiment of the present invention, the controller 800 of the electronic pen 1000 may generate angle information and transmit the generated angle information to the electronic device 3000 . According to another embodiment of the present invention, the controller 800 of the electronic pen 1000 may control a position at which the first electric field is detected, a position at which the second electric field is detected, and the first electrode 220 and the second electrode on the input surface. The distance difference of 230 may be transmitted to the electronic device 3000 , and the electronic device 3000 may generate angle information based on the distance.

25 is a flowchart illustrating a method of determining second position information and angle information of an electronic pen according to an embodiment of the present invention.

Referring to FIG. 25 , in the method for determining second position information and angle information of the electronic pen 1000 , the first electric field and the second electric field are received ( S310 ), the first electric field intersection region is determined ( S320 ), and the second electric field The method may include determining an intersection region (S330), and determining second location information and angle information based on the relative positions of the first electric field crossing region and the second electric field crossing region (S340).

Here, the second electric field crossing region is a region in which a plurality of conductors receiving the second electric field overlap. More specifically, when the electronic pen 1000 approaches the input surface of the electronic device 3000 , the input module 3100 of the electronic device 3000 receives the second electric field generated by the second electrode 230 . do. In this case, the second electric field crossing region is a region receiving the second electric field among the input modules 3100 of the electronic device 3000 .

Here, the electronic device 3000 may determine the central portion of the second electric field crossing region as the projection position of the second electrode 230 . In this case, the angle information may be determined based on the distance between the projection position of the second electrode 230 and the center of the first electric field crossing region, and the distance between the first electrode 220 and the second electrode 230 .

Since the description corresponding to each step has been described in detail above, a detailed description thereof will be omitted here.

In the above-described method for controlling an electronic device according to the present invention, the step of configuring each embodiment is not essential, and therefore each embodiment may selectively include the above-described step. In addition, each step constituting each embodiment does not necessarily have to be performed in the order described, and a step described later may be performed before the step described earlier. In addition, the method for controlling an electronic device according to the present invention may be implemented in the form of a code or program for performing the same, and such code or program may be stored in a computer-readable recording medium.

Hereinafter, a power management method of the electronic pen 1000 according to the present invention will be described.

26 is a flowchart of a method of supplying power to the electronic pen 1000 according to an embodiment of the present invention. Referring to FIG. 26 , in the power management method of the electronic pen 1000 , the control unit 800 determines whether to insert the first end or the second end of the cap unit 310 ( S410 ), and the control unit 800 It may include obtaining a pressure value from the first pressure sensor 410 (S420), and supplying power to the first pen module 100 (S430).

The electronic pen 1000 may determine whether the cap unit 310 is inserted (S410). Here, the electronic pen 1000 may determine whether the cap part 310 is inserted into the electronic pen 1000 by detecting a magnet included in the cap part 310 by a magnetic sensor. According to an embodiment of the present invention, the magnetic sensor may be positioned at the first end of the main body 300 to sense whether the cap part 310 is inserted into the first end of the main body 300 . According to another embodiment of the present invention, the magnetic sensor may be positioned at the second end of the main body 300 to sense whether the cap part 310 is inserted into the second end of the main body 300 .

Since the description corresponding to each step has been described in detail above, a detailed description thereof will be omitted here.

27 is another flowchart of a method of supplying power to an electronic pen according to an embodiment of the present invention. Referring to FIG. 27 , in the power management method of the electronic pen 1000 , power is supplied to the first pen module 100 ( S510 ), the controller 800 determines that the first condition is achieved ( S520 ), and the second 1 The power supplied to the pen module 100 is reduced (S530), the controller 800 determines that the second condition is achieved (S540), and the power supplied to the first pen module 100 is cut off (S550) may include steps.

Here, the first condition means a condition in which the first pen input is not provided to the electronic pen 1000 for a time longer than the first time. In addition, the second condition refers to a condition in which the first pen input is not provided to the electronic pen 1000 for a period longer than the second time period.

Here, the first time is a time during which the first pen input is not provided to the electronic pen 1000 after the on-state of the first pen module 100 is started. Here, the length of the first time may be variously set.

Also, the second time is a time during which the first pen input is not provided to the electronic pen 1000 after the on-state of the first pen module 100 is started. Here, the length of the second time period may be variously set. Here, the second time may be set longer than the first time.

Here, the first pen input is a user input associated with the first pen module 100 . The first pen input includes obtaining a pressure value by the first pressure sensor 410 , obtaining an image of the pattern detecting unit 120 , inputting a function button, and a user input in the electronic device 3000 through the communication unit 500 . may mean at least one of

Since the description corresponding to each step has been described in detail above, a detailed description thereof will be omitted here.

28 is another flowchart of a method of supplying power to an electronic pen according to an embodiment of the present invention. Referring to FIG. 28 , the power management method of the electronic pen 1000 includes a step of supplying power to the second pen module 200 ( S520 ), a step of determining that a third condition has been achieved by the controller 800 ( S620 ); The step of reducing the power supplied to the second pen module 200 ( S630 ), the step of determining that the fourth condition is achieved by the controller 800 ( S640 ), and the step of reducing the power supplied to the second pen module 200 further It may include a step (S650) of being.

Here, the third condition means a condition in which the second pen input is not provided to the electronic pen 1000 for a time longer than the third time period. Also, the fourth condition refers to a condition in which the second pen input is not provided to the electronic pen 1000 for a period longer than the fourth time period.

Here, the third time is a time during which the second pen input is not provided to the electronic pen 1000 after the on-state of the second pen module 200 is started. Here, the length of the third time period may be variously set.

Also, the fourth time is a time during which the second pen input is not provided to the electronic pen 1000 after the on-state of the second pen module 200 is started. Here, the length of the fourth time may be variously set. Here, the fourth time may be set longer than the third time.

Here, the second pen input includes obtaining a pressure value by the second pressure sensor 420 , obtaining a signal of the electronic device 3000 through the second pen module 200 , input for a function button, and the communication unit 500 . It may mean at least one of user inputs from the electronic device 3000 through the Here, the second pen input may further include acquiring a response signal to the first electric field and acquiring a response signal to the second electric field.

Since the description corresponding to each step has been described in detail above, a detailed description thereof will be omitted here.

In the above-described power management method according to the present invention, the step of configuring each embodiment is not essential, and therefore each embodiment may optionally include the above-described step. In addition, each step constituting each embodiment does not necessarily have to be performed in the order described, and a step described later may be performed before the step described earlier. For example, since the step (S420) of obtaining the pressure value from the first pressure sensor 410 is not essential, when it is determined that the cap part 310 is removed because it is omitted, the first pen module 100 is Power may be supplied.

The electronic device 3000 may display the memo area M based on the memo area identification information received from the electronic pen 1000 .

The memo area identification information is information that enables identification of the memo area M, which is at least a partial area of the writing trajectory included in the pen data. Here, the memo area identification information may be generated based on a handwriting image acquired through the pattern sensing unit 120 and an input to the input unit 400 of the electronic pen 1000 .

Here, the pen data may include unit cell information acquired by the electronic pen 1000 and writing trajectory information used for generating stroke data necessary to reproduce the user's writing trajectory in real time or to replay it later. have. The pen data may include visual information, first pressure information, first location information, first color information, and medium 2000 identification information.

29 is a view for explaining a memo area according to embodiments of the present invention.

Referring to FIG. 29 , the electronic pen 1000 may generate memo area identification information based on the handwriting image acquired through the first pen module 100 . The electronic device 3000 may obtain memo area identification information from the electronic pen 1000 . Here, the electronic device 3000 may determine the memo area M based on the memo area identification information generated by the electronic pen 1000 .

The memo area M is an area of at least a part of the handwriting image, and is an area generated by processing a user's handwriting trace obtained by the electronic pen 1000 to have a special purpose. Here, the memo area M may be stored in the memory module 3400 in the form of at least one of text data, stroke data, and image data. Here, when the memo area M is at least one of text data and stroke data, the electronic device 3000 may perform an additional operation. For example, the electronic device 3000 may determine the text data of the memo area M to change the angle of the memo area M.

Also, according to FIG. 29 , the electronic pen 1000 may determine a position where the memo area M is displayed on the electronic device through the second pen module 200 .

More specifically, the electronic pen 1000 transmits pen data including the memo area identification information to the communication module 3300 of the electronic device through the communication unit 500 , and the position where the memo area M is displayed is It may be determined based on at least one of the first electric field, the second electric field, and the second pressure information.

30 to 32 are diagrams for explaining embodiments of generating memo area identification information according to embodiments of the present invention.

30 to 32 , the memo area M may be determined based on the memo area identification information obtained from the first module 100 . More specifically, the memo area identification information may be generated based on at least one of a handwriting image acquired through the pattern detecting unit 120 and an input to the input unit 400 of the electronic pen 1000 .

Here, the handwriting image may be the user's handwriting trace. Here, the input to the electronic pen 1000 may be various. For example, the memo area M is displayed on the basis of at least one of an input to the function button 420 , a pressure value acquisition through the first pressure sensor 410 , and a pressure value acquisition through the second pressure sensor 420 . can be judged.

The memo area identification information may be generated by a user input.

Referring to FIG. 30 , the memo area identification information may include an input signal to the input unit 400 of the electronic pen 1000 and information about a handwriting image acquired through the pattern sensing unit 120 .

Here, the input unit 400 may be a function button 402 . More specifically, the control unit 800 may generate memo area identification information based on a handwriting image obtained when an input through the function button 402 is provided to the electronic pen 1000 .

Here, when receiving the memo area identification information, the electronic device 3000 may determine a portion of the handwriting image included in the pen data as the memo area M based on the memo area identification information. In this case, even if the electronic pen 1000 is not in communication with the electronic device 3000 , the electronic pen 1000 may store pen data to which the memo area identification information is added.

The memo area identification information may be generated based on various inputs to the input unit 400 . Here, the electronic device 3000 may determine the memo area M based on various inputs to the input unit 400 .

According to an embodiment of the present invention, the electronic device 3000 defines a region surrounded by the handwritten image obtained in the first state in which the input through the function button 402 is provided to the electronic pen 1000 as the memo region (M). can be judged as

More specifically, the electronic device 3000 may obtain memo area identification information including coordinate information of the first handwriting image in a state where an input through the function button 402 is provided to the electronic pen 1000 . Here, the electronic device 3000 may determine the second handwriting image located in the inner area as the first pen memo area M with respect to the coordinate information of the first handwriting image. Here, the second handwriting image may be included in the pen data.

According to another embodiment of the present invention, the electronic device 3000 may determine the handwriting image obtained in the first state in which the input through the function button 402 is provided to the electronic pen 1000 as the memo area M. can

Here, in the first state, a handwriting image acquired through the electronic pen 1000 is input from a first time point t1 to a second time point t2, and an input to the function button 402 is inputted to a third time point ( When applied from t3) to the fourth time point t4, the first time point t1 and the third time point t3 are substantially the same, or the third time point t3 is longer than the first time point t1 It means a case in which the second time point t2 and the fourth time point t4 are substantially the same or the fourth time point t4 is slower than the second time point t2.

According to another embodiment of the present invention, the electronic device 3000 may display the handwriting image acquired in the second state after the input through the function button 402 is provided to the electronic pen 1000 in the memo area (M). can be judged as

Here, in the second state, the handwriting image acquired through the electronic pen 1000 is input from the fifth time point t5 to the sixth time point t6, and the input to the function button 402 is inputted at the seventh time point ( When applied from t7) to the eighth time point t8, the fifth time point t5 is substantially the same as the eighth time point t8, or the fifth time point t5 is greater than the eighth time point t8. It means a state that is slower by the preset time th1. Here, the predetermined time th1 may be variously set.

According to another embodiment of the present invention, when the electronic device 3000 acquires the handwriting information obtained with the first pressure information, but fails to acquire the coordinate information, the electronic device 3000 uses the electronic pen 1000 at a ninth time point t9. The handwriting image acquired from to the tenth time point t10 may be determined as the memo area M. Here, the length from the ninth time point t9 to the tenth time point t10 may be variously set.

The memo area identification information may be generated by a user input.

31 and 32 , the memo area identification information may include information about a handwritten image.

The electronic pen 1000 may generate memo area identification information based on the handwriting image acquired through the pattern detecting unit 120 . More specifically, the electronic pen 1000 includes at least one of unit cell information to which a handwritten image acquired through the pattern detecting unit 120 is given a predetermined identification code and icon I1 information regarding the memo area M. If one is included, memo area identification information may be generated.

Referring to FIG. 31 , when the handwritten image acquired through the first pen module 100 includes a predetermined first identification code IC1 , the electronic device 3000 records the acquired handwriting image in the memo area M can be judged as More specifically, when the memo area identification information obtained through the electronic pen 1000 includes the first identification code IC1, the electronic device 3000 determines the stroke, time, and the predetermined first identification code (IC1). The memo area M may be determined based on at least one of the distance to IC1). Although the first predetermined identification code is illustrated in the form of '#1' in FIG. 31, the predetermined identification code is not limited thereto and may be provided in various forms.

According to an embodiment of the present invention, when the handwritten image acquired through the first pen module 100 includes the predetermined first identification code IC1, the electronic device 3000 performs a predetermined stroke and a predetermined The memo area M may be determined based on at least one of a time and a predetermined distance to the first identification code IC1 .

When determining the memo area M based on the predetermined stroke, the electronic device 3000 writes the predetermined first identification code IC1 and then writes the handwriting input to the medium 2000 based on the number of the input strokes. The image may be determined as the memo area M. Here, the electronic device 3000 may change the number of strokes determined as the memo area M based on the user's input.

When determining the memo area M based on a predetermined stroke, the electronic device 3000 writes the predetermined first identification code IC1 and then writes to the medium 2000 based on the number of strokes input for a unit time. The input handwriting image may be determined as the memo area M. Here, the unit time may be preset to various values. Here, the number of strokes input during a unit time may be preset to various values.

When determining the memo area M based on the predetermined time, the electronic device 3000 records the handwritten image input to the medium 2000 for a predetermined unit time after the predetermined first identification code IC1 is written. It can be determined as the memo area (M). Here, the unit time may be preset to various values. Here, the electronic device 3000 may change the area determined as the memo area M by changing the unit time based on the user's input.

When determining the memo area M based on the distance from the first identification code IC1 , the electronic device 3000 generates a predetermined first identification code IC1 and then a handwritten image input to the medium 2000 . A handwritten image located within a predetermined unit distance from the predetermined first identification code IC1 may be determined as the memo area M. . Here, the electronic device 3000 may change the area determined as the memo area M by changing the unit distance based on the user's input.

When determining the memo area M based on the distance from the first identification code IC1 , the electronic device 3000 detects the predetermined first identification code IC1 with respect to the handwritten image input to the medium 2000 . When written, a handwritten image located within a predetermined unit distance from the predetermined first identification code IC1 may be determined as the memo area M. Here, the memo area generation information including the predetermined first identification code may be generated after the pen data including the handwriting image input to the medium 2000 is generated. Here, the electronic device 3000 may change the area determined as the memo area M by changing the unit distance based on the user's input.

According to another embodiment of the present invention, when the handwritten image acquired through the first pen module 100 includes the predetermined first identification code IC1, the electronic device 3000 sets the page to the memo area ( M) can also be determined.

According to FIG. 32 , the electronic device 3000 acquires the handwritten image acquired through the first pen module 100 when it includes unit cell information to which icon I1 information regarding the memo area M is attached. The written handwriting image may be determined as the memo area M. Here, the electronic device 3000 may acquire unit cell information to which the icon I1 information is assigned through the first check mark C1. In FIG. 32 , the first check symbol C1 is expressed as a V-shaped symbol, but it may be provided in various forms as long as unit cell information to which the icon I1 information is obtained can be obtained.

The icon information refers to identification information given only to a partial region of the medium 2000 so that a specific function is additionally executed for only a partial region of the medium 2000 . Here, when a unit cell in which icon information including a specific function is encoded is decoded, at least one of the electronic pen 1000 and the electronic device 3000 may perform a specific function. Here, when a unit cell to which icon information is attached is sensed through the pattern detecting unit 120 , the electronic device 3000 may execute a specific function corresponding to the icon information.

According to an embodiment of the present invention, the electronic device 3000 includes an icon I1 in which a handwriting image acquired through the first pen module 100 includes unit cell information having a memo area M function as a specific function. When information is included, the medium area 2000 corresponding to the second handwriting image located in the inner area with respect to the coordinate information of the first handwriting image corresponding to the memo area identification information among the obtained handwriting images is the memo area (M). can be judged as Here, the second handwriting image may be included in the pen data.

According to another embodiment of the present invention, the electronic device 3000 is a unit to which information about the icon I1 having the memo area M function as a specific function is given to the handwritten image acquired through the first pen module 100 . When cell information is included, the corresponding page may be determined as the memo area (M).

The electronic device 3000 may determine the memo area M based on the memo area identification information received from the electronic pen 1000 . Here, the communication module 3300 of the electronic device 3000 may receive pen data from the communication unit 500 of the electronic pen 1000 . Of course, the input module 3100 of the electronic device 3000 may receive pen data through the second pen module 200 of the electronic pen 1000 .

The electronic device 3000 may transmit information reflecting the memo area M to the temporary storage space. Here, the temporary storage space is a memory area secured to be used for a predetermined period in the electronic device 3000 . For example, the temporary storage space may be a clipboard. Here, the memory module 3400 may include a temporary storage space.

Here, when the plurality of memo areas M are formed, the electronic device 3000 may transmit information reflecting at least one memo area M to the temporary storage space. Also, the electronic device 3000 may transmit information reflecting a part of the memo area M to the temporary storage space.

Also, the electronic device 3000 may transmit information reflecting the plurality of memo areas M to the temporary storage space. For example, information reflecting the first memo area, the second memo area, and the third memo area, which are partial areas included in the memo area M, may be transmitted to the temporary storage space.

Here, the electronic device 3000 may transmit information reflecting all the determined memo areas M to the temporary storage space.

Of course, the electronic device 3000 may transmit information reflecting the memo area M to the temporary storage space based on information acquired through the electronic pen 1000 .

33 to 36 are diagrams for explaining embodiments of transmitting information reflecting a memo area to a temporary storage space according to embodiments of the present invention.

33 to 36 , the memo area M stored in the memory module 3400 of the electronic device 3000 may receive a clipboard signal and move to a temporary storage space.

The clipboard signal is a signal that causes the electronic device 3000 to move at least a portion of the memo area M to the temporary storage space. More specifically, the clipboard signal is a signal for transmitting information reflecting the memo area M to the temporary storage space. Here, the clipboard signal may be generated based on an input to the electronic pen 1000 .

An input to the electronic pen 1000 may be various. For example, information reflecting the memo area M may be transmitted to the temporary storage space using an input to the input unit 400 or recognition of a code pattern printed on the medium 2000 .

Referring to FIG. 33 , when an input to the input unit 400 is provided, the electronic pen 1000 may generate a clipboard signal. Here, the clipboard signal may be included in pen data and transmitted to the electronic device 3000 through the communication unit 500 of the electronic pen 1000 .

According to an embodiment of the present invention, the input unit 400 may be a function button 402 . Here, when an input through the function button 402 is provided to the electronic pen 1000, the control module 3500 determines that a part of the memo area M is the memo area M to be moved to the temporary storage space. can do.

According to another embodiment of the present invention, the electronic device 3000 acquires the handwriting information obtained with the first pressure information, but when the coordinate information is not obtained, the electronic device 3000 obtains the first pressure information for a predetermined time after acquiring the first pressure information. A part of the memo area M may be determined as the memo area M moved to the temporary storage space.

When receiving the clipboard signal, the electronic device 3000 may move information reflecting the memo area M to a temporary storage space.

Here, when receiving pen data including a clipboard signal, the electronic device 3000 may determine a portion of the memo area M as the memo area M to be moved to the temporary storage space.

According to an embodiment of the present invention, when receiving the clipboard signal, the electronic device 3000 may move the most recently determined memo area M to the temporary storage space.

According to another embodiment of the present invention, when receiving the clipboard signal, the electronic device 3000 temporarily stores an area determined as the most recently memo area M among the memo areas M not moved to the temporary storage space. can be moved into space.

Referring to FIG. 34 , when the handwritten image acquired through the first pen module 100 includes unit cell information in which a predetermined first identification code IC1 is located, the electronic device 3000 determines the memo area ( M) may be transmitted to the temporary storage space.

As described above, when the acquired handwriting image includes the predetermined first identification code IC1 , the electronic device 3000 may determine the acquired handwriting image as the memo area M.

The electronic device 3000 may obtain unit cell information in which the first identification code IC1 is located through the second check code C2 . Here, the electronic device 3000 may transmit the area determined as the memo area M to the temporary storage space based on the acquired unit cell information. Here, if the coordinate information of the medium 2000 to which the predetermined first identification code IC1 is reflected is recognized again, the electronic device 3000 determines the memo area M based on the first identification code IC1. Areas can be transferred to temporary storage.

According to FIG. 35 , when the electronic device 3000 determines the plurality of memo areas M, the electronic device 3000 provides unit cell information in which the identification code is located among the plurality of memo areas M through a check mark. Information reflecting the obtained memo area M may be transmitted to the temporary storage space. For example, the electronic device 3000 may determine that the handwriting image includes the first memo area M1 and the second memo area M2. Here, if the coordinate information of the medium 2000 to which the predetermined first identification code IC1 is reflected is recognized again, the electronic device 3000 determines the memo area M based on the first identification code IC1 can be transferred to the temporary storage space. In this case, the coordinate information of the medium 2000 to which the second identification code IC2 is reflected is not recognized, and the area determined as the memo area M based on the second identification code IC2 is used as a temporary storage space. not sent

Referring to FIG. 36 , the electronic device 3000 determines when the handwritten image acquired through the first pen module 100 includes unit cell information to which the icon I1 information regarding the memo area M is attached. Information reflecting the memo area M may be transmitted to the temporary storage space.

As described above, in the electronic device 3000, the handwritten image acquired through the first pen module 100 through the first check mark C1 is provided with the icon I1 information regarding the memo area M. When unit cell information is included, the acquired handwriting image may be determined as the memo area M.

The electronic device 3000 may obtain unit cell information to which the icon I1 information regarding the memo area M is attached through the third check mark C3 . Here, when the electronic device 3000 acquires the icon I1 information on the memo area M again, the electronic device 3000 may transmit information reflecting the memo area M to the temporary storage space.

In the above, a method for the electronic device 3000 to transmit at least a portion of the memo area M to the temporary storage space by an external input has been described.

However, the method of transmitting the memo area M to the temporary storage space is not limited to using a clipboard signal, and when the electronic device 3000 determines that at least a portion of the handwritten image is the memo area M, the determination Information reflecting the memo area M may be directly transmitted to the temporary storage space.

37 is a diagram for explaining a method of determining a position at which a memo area is displayed according to embodiments of the present invention.

Referring to FIG. 37 , a position at which the memo area M is displayed may be determined based on the electronic pen 1000 . More specifically, the electronic device 3000 may determine a position where the memo area M is displayed based on at least one of the first electric field, the second electric field, and the second pressure information.

According to an embodiment of the present invention, the electronic device 3000 may determine a position where the memo area M is displayed based on the first electric field received from the second pen module 200 . More specifically, the information reflecting the memo area M is transmitted to the electronic device 3000 through the communication unit 500 of the electronic pen 1000, but the position where the memo area M is displayed is determined by the second pen module ( 200) may be determined as a first electric field crossing region that receives the first electric field generated.

According to another embodiment of the present invention, the electronic device 3000 may determine a position where the memo area M is displayed by further considering the second electric field received from the second pen module. More specifically, a position where the memo area M is displayed is at least one of a first electric field crossing region receiving the first electric field generated by the second pen module 200 and a second electric field crossing region receiving the second electric field can be determined based on

According to another embodiment of the present invention, the electronic device 3000 may determine a position where the memo area M is displayed, based on the second pressure information. More specifically, the position where the memo area M is displayed is the first obtained by the electronic device 3000 between a time point at which the second pressure information generated by the second pen module 200 is acquired and a predetermined time interval. It may be determined based on at least one of the electric field crossing region and the second electric field crossing region. Here, the predetermined time interval may be variously set.

Here, a position at which the memo area M is displayed on the electronic device 3000 through the electronic pen 1000 may be set in various ways.

For example, the center of the displayed memo area M may be formed in the first electric field crossing area of the electronic pen 1000 . As another example, at least one of the vertices of the displayed memo area M may be formed in the first electric field crossing area of the electronic pen 1000 . For example, the upper left of the displayed memo area M may be formed in the first electric field crossing area of the electronic pen 1000 .

Also, although it is illustrated in FIG. 31 that one memo area M is generated by one predetermined first identification code IC1, a plurality of memo areas M are generated based on one predetermined identification code. could be Here, the electronic device 3000 may determine the memo area M based on the signal received from the second pen module 200 . Here, the electronic device 3000 may select the displayed memo area M from among the plurality of memo areas M based on the signal received from the second pen module 200 .

The electronic device 3000 may display an image E reflecting the memo area based on the operation of the second pen module 200 .

The image E reflecting the memo area is an image that the electronic device 3000 outputs from the output module 3200 of the electronic device 3000 based on information reflecting the memo area.

The image E reflecting the memo area is not limited to image data, and may include at least one of text data and stroke data.

38 is a view for explaining a form in which an image reflecting a memo area is displayed based on a distance between an electronic pen and an electronic device according to embodiments of the present invention.

Referring to FIG. 38 , the image E reflecting the memo area may be variously changed according to the distance between the electronic pen 1000 and the electronic device 3000 .

When the first electrode 220 of the electronic pen 1000 approaches the electronic device 3000 within the first effective distance, the electronic device 3000 outputs an image E reflecting the memo area to the output module 3200 . It can be printed through That is, when the distance d1 between the first electrode 220 and the input surface of the electronic device 3000 is within the first effective distance, the electronic device 3000 outputs an image E reflecting the memo area to the output module. It can be output through (3200).

Here, the first effective distance is a distance from the first electrode 220 to a point where the first electric field is effectively transmitted. The first effective distance may be variously set if the electronic device 3000 can determine the movement of the first electrode 220 .

When the electronic device 3000 acquires the first electric field from the first electrode 220, the transparency of the image E1 reflecting the first memo region M output through the output module, the dash shape of the outline, At least one of the shade levels may be changed. For example, as shown in FIG. 38( a ), when the distance d1 of the first electrode 220 of the electronic pen 1000 to the input surface of the electronic device 3000 is within the first effective distance, The electronic device 3000 may express the dash shape of the outline of the image E1 reflecting the first memo area output through the output module in the form of a long dashed line - a dotted line - a dotted line.

When the electronic device 3000 acquires pen data including the second pressure information while acquiring the first electric field from the first electrode 220 , the electronic device 3000 outputs the second memo area output through the output module 3200 . At least one of transparency of the reflected image E2 , a dash shape of an outline, and a shading degree may be changed. For example, as shown in FIG. 38(b) , the second pen module 200 of the electronic pen 1000 comes into contact with the input surface of the electronic device 3000 so that the electronic device 3000 receives the second pressure information. When acquiring pen data including , the electronic device 3000 may express a dash shape of the outline of the image E2 reflecting the second memo area output through the output module 3200 as a solid line.

Of course, various shapes of the outline of the image E2 reflecting the second memo area may be provided, and the outline may not be expressed.

Also, the transparency of the image E2 reflecting the second memo area output through the output module 3200 may be reduced than the transparency of the image E1 reflecting the first memo area. For example, when the electronic device 3000 acquires the first electric field from the first electrode 220 , the electronic device 3000 includes an image reflecting the first memo area output through the output module 3200 ( When generating E1), transparency information may be included. Here, the image E1 reflecting the first memo area may be rendered transparent and displayed on the output module 3200 . In this case, when the electronic device 3000 receives pen data including the second pressure information, the transparency of the image E2 reflecting the second memo area output through the output module 3200 is set to the first memo area. It can be expressed by reducing the transparency of the image E1 reflecting the .

When the electronic device 3000 acquires pen data including the second pressure information while determining the position where the memo area M is displayed, the electronic device 3000 determines a position where the memo area M is displayed on the electronic device 3000 . can More specifically, the electronic device 3000 may determine a position where the image E reflecting the memo area is displayed on the output module 3200 . In this case, the electronic device 3000 may no longer determine the display position of the image E reflecting the memo region with respect to the memo area M for which the displayed position is determined.

Here, pen data including the second pressure information may be input from an eleventh time point t11 to a twelfth time point t12. In this case, the electronic device 3000 may no longer determine the position where the image E reflecting the memo area is displayed at substantially the same time as the twelfth time point t12 . Here, the image reflecting the memo area in which the position displayed on the output module 3200 of the electronic device 3000 is not determined may be defined as a preview image.

When the electronic device 3000 receives the memo area identification information including information on the plurality of memo areas M, the image E reflecting the memo area displayed on the electronic device 3000 is the second pen It may be changed by a signal obtained from the module 200 . More specifically, the electronic device 3000 determines an image E reflecting the memo area displayed on the output module 3200 of the electronic device 3000 based on a user input using the second pen module 200 . can For example, the electronic device 3000 obtains the first electric field from the electronic pen 1000 through the input module 3100 , and outputs an image E reflecting the first memo area through the output module 3200 . can be displayed Here, when the first electrode 220 is positioned within the first effective distance from the input module 3100 and the electronic pen 1000 is swiped, the electronic device 3000 displays an image E reflecting the first memo area. ), an image E2 reflecting the second memo area, which is an image other than ), may be displayed through the output module 3200 .

Hereinafter, a method of displaying the memo area M of the electronic device 3000 according to the present invention will be described.

39 is a flowchart of a method for displaying a memo area M of an electronic device according to an embodiment of the present invention. Referring to FIG. 39 , in the method of displaying the memo area M of the electronic device 3000 , the communication module 3300 receives pen data ( S710 ), and the control module 3500 determines the memo area based on the pen data. and (S720), the control module 3500 determining a position at which the memo area is displayed based on the signal received from the second pen module (S730).

Here, the method of displaying the memo area M of the electronic device 3000 may further include displaying a position where the memo area M is displayed. The step of displaying the position where the memo area M is displayed may be variously changed according to the distance between the electronic pen 1000 and the electronic device 3000 as described above. Here, the memo area M may be output from the output module 3200 of the electronic device 3000 through the image E reflecting the memo area.

Here, the method of displaying the memo area M of the electronic device 3000 may further include correcting information included in the memo area M. Here, when the memo area M is recognized as at least one of text data and stroke data, the electronic device 3000 may correct the text or the stroke itself with respect to information included in the memo area M.

Since the description corresponding to each step has been described in detail above, a detailed description thereof will be omitted here.

Hereinafter, a method of processing color information in the electronic pen 1000 and the electronic device 3000 will be described in detail.

The electronic pen 1000 may be used in the medium 2000 and the electronic device 3000 , and for this reason, when used in the electronic device 3000 after being used in the medium 2000 , the electronic pen 1000 is used in the electronic device 3000 . When used in the second medium 2000 , the medium 2000 and the electronic device 3000 may be used at the same time, or the electronic device 3000 may be used in another electronic device 3000 .

In each of the above cases, the same color information or different color information may be reflected when the user's handwriting is reproduced based on the first location information in the electronic device 3000 or an image is displayed based on the second location information. have.

On the other hand, when a plurality of electronic pens 1000 are used and an image is displayed on one electronic device 3000 accordingly, each electronic pen 1000 has its own color information to be distinguished from other electronic pens 1000 . There is a need.

Hereinafter, a method in which color information is used in displaying an image on the electronic device 3000 will be described in detail with reference to FIGS. 40 to 42 .

As described above, when the electronic pen 1000 is alternately used for the medium 2000 and the electronic device 3000 or is alternately used for a plurality of electronic devices 3000, the same as the image displayed on the electronic device 3000 or Similar color information may be reflected.

Meanwhile, the color maintenance method may be performed by at least one of the controller 800 , the control module 3500 , and the server 4000 .

Before the color maintenance method is performed, color information to be displayed on the electronic device 3000 may be set when the first pen module 100 is used and when the second pen module 200 is used.

When the color maintaining method is performed by the controller 800 , the controller 800 may store in the memory 600 at least one of the color information used in the first pen module 100 and the color information used in the second pen module 200 . You can save one.

In an embodiment of the present invention, the controller 800 may store the first color information and the second color information in the memory 600 . Alternatively, the controller 800 may store at least one of the first color information and the shared color information in the memory 600 . Alternatively, the controller 800 may use preset preferred color information without storing separate color information in the memory 600 . Alternatively, the controller 800 may use color information obtained from at least one of the electronic device 3000 and the server 4000 without storing separate color information in the memory 600 .

When the color maintenance method is performed in the control module 3500 , the control module 3500 may store the first color information in the memory module 3400 . Alternatively, the control module 3500 may store at least one of the first color information and the shared color information in the memory module 3400 . Alternatively, the control module 3500 may use preset preferred color information without storing separate color information in the memory module 3400 . Alternatively, the control module 3500 may use color information obtained from at least one of the electronic pen 1000 and the server 4000 without storing separate color information in the memory module 3400 .

Hereinafter, the description will be made based on a case in which first color information is set as color information used in the first pen module 100 and second color information is set as color information used in the second pen module 200 . Shared color information or preferred color information may be used instead of the color information and the second color information.

Hereinafter, a method for maintaining color information according to an order in which the first pen module 100 and the second pen module 200 included in the electronic pen 1000 are used and a subject performing the color maintaining method will be described.

Referring to FIG. 40 , when the second pen module 200 is used after the first pen module 100 is used, the color maintenance method includes the steps of using the first pen module ( S810 ), transmitting and receiving color information ( S820 ), It may include a color information change step (S830) and a second pen module use step (S840).

As the first pen module 100 is used in the step of using the first pen module ( S810 ), the control unit 800 may acquire the handwriting image detected by the pattern detection unit 120 , and transmit it to the electronic device 3000 may be transmitted, and the control module 3400 may obtain a handwriting image from the electronic pen 1000 and display the image on the display of the electronic device 3000 .

In this case, the image displayed on the display may be displayed by reflecting color information set for use of the first pen module 100 before the step of using the first pen module 100 ( S810 ).

According to an embodiment of the present invention, when the first pen module 100 is used in the step of using the first pen module ( S810 ), an image based on the first color information may be displayed on the electronic device 3000 .

In the color information transmission/reception step ( S820 ), color information set before the first pen module use step ( S810 ) may be transmitted/received between the controller 800 , the control module 3500 , and the server 4000 .

By transmitting and receiving color information, information sharing for maintaining color may be performed.

When the color maintenance method is performed by the controller 800 , the controller 800 may transmit color information stored in the memory 600 to at least one of the control module 3500 and the server 4000 .

According to an embodiment of the present invention, when the first pen module 100 is used, the controller 800 may transmit the first color information used to reproduce the user's handwriting to the electronic device 3000, The control module 3500 may receive the first color information and store it in the memory module 3400 .

When the color maintenance method is performed in the control module 3500 , the control module 3500 may obtain color information used in the first pen module 100 from the electronic pen 1000 . Alternatively, the control module 3500 may transmit color information set before the first pen module use step S810 to the electronic pen 1000 or the server 4000 .

According to an embodiment of the present invention, when the first pen module 100 is used, the control module 3500 reflects the first color information set before the first pen module use step S810 to reproduce the user's handwriting or The user's handwriting may be reproduced by acquiring the handwriting image and the first color information from the electronic pen 1000 . Also, the control module 3500 may transmit the first color information to the electronic pen 1000 while reproducing the user's handwriting.

Color information to be reflected may be set or changed as the second pen module 200 is used based on the color information transmitted/received in the color information transmission/reception operation ( S820 ) in the color information changing operation ( S830 ).

When the color maintaining method is performed by the controller 800 , the controller 800 may set color information used in the second pen module 200 or change preset color information if there is one.

According to an embodiment of the present invention, the controller 800 transmits color information in the same or similar range to the first color information transmitted in the color information transmission/reception step ( S820 ) as a second color used by the second pen module 200 . information can be stored. Alternatively, the controller 800 may transmit the first color information to the electronic device 3000 without separately storing the first color information as the second color information.

When the color maintenance method is performed in the control module 3500 , the control module 3500 may set color information used in the second pen module 200 or change preset color information if there is one.

According to an embodiment of the present invention, the control module 3500 transmits color information in the same or similar range as the first color information transmitted and received in the color information transmission/reception step ( S820 ) to the second pen module 200 using the second pen module 200 It can be stored as color information. Alternatively, the control module 3500 may use the first color information instead of the second color information when the second pen module 200 is used later without separately storing the first color information as the second color information.

In this case, the color information in the same or similar range as the first color information includes a range that is difficult to distinguish with the naked eye, or is changed to a value that can be expressed digitally such as RGB value, HSB (HSV) value, CMYK value, or Lab value It may include color information that does not differ by more than a certain value.

When the second pen module 200 is used in the step of using the second pen module ( S840 ), an image reflecting the color information used in the step of using the first pen module ( S810 ) may be displayed on the electronic device 3000 .

When the color maintenance method is performed by the controller 800 , when the second pen module 200 is used, the controller 800 transmits the color information set or changed in the color information changing step S830 to the electronic device 3000 , and Based on this, an image may be displayed on the electronic device 3000 .

According to an embodiment of the present invention, the control unit 800 may transmit second color information set or changed to correspond to the first color information in the color information changing step ( S840 ) to the electronic device 3000 , and the control module 3500 may display an image on the display of the electronic device 3000 based on the second location information and the second color information.

When the color maintenance method is performed in the control module 3500 , when the second pen module 200 is used, the control module 3500 uses the color information set or changed in the color information changing step S840 to the electronic device 3000 . ) can be displayed on the display.

According to an embodiment of the present invention, the control module 3500 controls the electronic device 3000 based on the second color information and the second location information set or changed to correspond to the first color information in the color information changing step ( S840 ). image can be displayed on the display of

Meanwhile, each step may not be performed in a specific order, and some steps may be omitted. Alternatively, an additional step may be further performed between each step.

According to an embodiment of the present invention, the color information transmission/reception step S820 may be performed first or may be performed simultaneously before the first pen module use step S810 is performed.

According to another embodiment, after the step of using the first pen module ( S810 ) and before the step of transmitting and receiving color information ( S820 ), a step of setting color information according to a user input or performing a preset gesture of the electronic pen 1000 is additionally performed. can be

In addition, the subject performing each step for performing the color maintenance method may vary.

According to an embodiment of the present invention, the color information transmitting and receiving step ( S820 ) is performed by the controller 800 , and the color information changing step ( S830 ) and the second pen module use step ( S840 ) are performed by the control module 3500 . can

In another embodiment, the step of transmitting and receiving color information ( S820 ) and the step of changing the color information ( S830 ) may be performed by the control module 3500 , and the step of using the second pen module ( S840 ) may be performed by the controller 800 .

Referring to FIG. 41 , when the first pen module 100 is used after the second pen module 200 is used, the color maintenance method includes the steps of using the second pen module ( S910 ) and transmitting and receiving color information ( S920 ). , changing color information ( S930 ) and using the first pen module ( S940 ).

As the second pen module 200 is used in the step of using the second pen module ( S910 ), the control module 3500 is set to use the second location information and the second pen module 200 in the electronic device 3000 . An image can be displayed based on the color information. In this case, the displayed image may include an image based on color information set before the second pen module use step ( S910 ).

According to an embodiment of the present invention, when the second pen module 200 is used in the step of using the second pen module ( S910 ), an image based on the second color information may be displayed on the electronic device 3000 .

In the color information transmission/reception step (S920), color information set before the second pen module use step (S910) may be transmitted/received between the controller 800, the control module 3500, and the server 4000. In this way, information sharing for maintaining color can be achieved.

In the color information transmission/reception step S920 , the controller 800 may acquire color information from at least one of the control module 3500 and the server 4000 , and the control module 3500 includes the electronic pen 1000 and the server 4000 . ), color information used for the second pen module 200 may be transmitted.

According to an embodiment of the present invention, when the second pen module 200 is used, the control module 3500 may transmit second color information used to reproduce the user's handwriting to the electronic pen 1000 , , the controller 800 may receive the second color information and store it in the memory 600 .

According to an embodiment of the present invention, when the second pen module 200 is used, the control module 3500 can reproduce the user's handwriting by reflecting the second color information set before the second pen module use step ( S910 ). can Also, the control module 3500 may transmit the second color information to the electronic pen 1000 while reproducing the user's handwriting.

Color information to be reflected may be set or changed as the first pen module 100 is used based on the color information transmitted/received in the color information transmission/reception operation ( S920 ) in the color information changing operation ( S930 ).

When the color maintaining method is performed by the controller 800 , the controller 800 may set color information used in the first pen module 100 or change preset color information if there is one.

According to an embodiment of the present invention, the controller 800 transmits color information in the same or similar range to the second color information obtained in the step S920 of transmitting and receiving color information for the first color used in the first pen module 100 . information can be stored. Alternatively, the controller 800 may transmit the second color information to the electronic device 3000 without separately storing the second color information as the first color information.

When the color maintenance method is performed in the control module 3500 , the control module 3500 may set color information used for the first pen module 100 or change preset color information if there is one.

According to an embodiment of the present invention, the control module 3500 transmits color information in the same or similar range to the second color information transmitted and received in the color information transmission/reception step ( S920 ) to the first pen module 100 used in the first pen module 100 . It can be stored as color information. Alternatively, the control module 3500 may use the second color information instead of the first color information when the first pen module 100 is used later without separately storing the second color information as the first color information.

At this time, the color information in the same or similar range as the second color information includes a range that is difficult to distinguish with the naked eye, or has been changed to a value that can be expressed digitally, such as RGB value, HSB (HSV) value, CMYK value, or Lab value. It may include color information that does not differ by more than a certain value.

When the first pen module 100 is used in the first pen module using step ( S940 ), the color information used in the second pen module using step ( S910 ) is reflected in the electronic device 3000 to reproduce the user's handwriting. can

When the color maintenance method is performed by the controller 800 , when the first pen module 100 is used, the controller 800 transmits the color information set or changed in the color information changing step S930 to the electronic device 3000 , and Based on this, the control module 3500 may display an image on the electronic device 3000 .

According to an embodiment of the present invention, the controller 800 may transmit the first color information set or changed to correspond to the second color information in the color information changing step S930 to the electronic device 3000, and the control module 3500 may reproduce the user's handwriting on the display of the electronic device 3000 based on the handwriting image and the first color information.

When the color maintenance method is performed in the control module 3500 , when the second pen module 200 is used, the control module 3500 uses the color information set or changed in the color information changing step S840 to the electronic device 3000 . ) can be displayed on the display.

According to an embodiment of the present invention, the control module 3500 displays the electronic device 3000 based on the first color information and the handwritten image set or changed to correspond to the second color information in the color information changing step ( S930 ). The user's handwriting can be reproduced.

Meanwhile, each step may not be performed in a specific order, and some steps may be omitted. Alternatively, an additional step may be further included between each step.

According to an embodiment of the present invention, the color information transmission/reception step ( S920 ) may be first performed before the second pen module using step ( S910 ) or may be performed simultaneously with the second pen module using step ( S910 ).

According to another embodiment, after the step of using the second pen module ( S910 ) and before the step of transmitting and receiving color information ( S920 ), a step of setting color information according to a user input or performing a preset gesture of the electronic pen 1000 is additionally performed. can be

In addition, the subject performing each step for performing the color maintenance method may vary.

According to an embodiment of the present invention, the color information transmission/reception step ( S920 ) is performed by the controller 800 , and the color information changing step ( S930 ) and the first pen module use step ( S940 ) are performed by the control module 3500 . can

In another embodiment, the step of transmitting and receiving color information ( S920 ) and the step of changing the color information ( S930 ) may be performed by the control module 3500 , and the step of using the first pen module ( S940 ) may be performed by the controller 800 .

Meanwhile, the above-described color maintenance method may be performed only when a specific condition is satisfied. More specifically, even if the electronic pen 1000 is used for the medium 2000 and the electronic device 3000 according to a user's selection, color information used may not be maintained.

According to an embodiment of the present invention, the electronic pen 1000 or the electronic device 3000 may provide a color change mode and a color maintenance mode, and in the color change mode, even if the above-described color information can be maintained, color information may be changed. On the other hand, in the color maintenance mode, when the above-described color information can be maintained, the color information may be maintained.

The color change mode and the color maintenance mode may be switched when the electronic pen 1000 performs a preset gesture or the electronic device 3000 receives a user input.

In this case, the color maintaining method may further include a step of determining whether the color maintaining mode is used.

When there are multiple users and each user uses the electronic pen 1000 , or when one user uses a plurality of electronic pens 1000 , the electronic device 3000 is based on the unique color information of each electronic pen 1000 . to display the image.

Hereinafter, a case in which an image is displayed on the electronic device 3000 when two electronic pens 1000 are used according to an embodiment of the present invention will be described.

Referring to FIG. 43 , the first electronic pen 1000 - 1 and the second medium 2000 - 2 or the second electronic device used in the first medium 2000 - 1 or the first electronic device 3000 - 1 When the second electronic pen 1000-2 used in (3000-2) is used, among the first electronic device 3000-1, the second electronic device 3000-2, and the master electronic device 3000-M. At least one image may be displayed. In this case, the master electronic pen 1000 -M may be used in the master electronic device 3000 -M.

The first medium 2000-1 and the second medium 2000-2 are medium 2000 used by one or two users, and the first electronic device 3000-1 and the second electronic device 3000-2 are used. ) may mean the electronic device 3000 used by one user or two users.

As the first electronic pen 1000-1 and the second electronic pen 1000-2 are used, the master electronic device 3000-M displays a first image by the first electronic pen 1000-1 at the same time or at the same time. and the electronic device 3000 on which the second image by the second electronic pen 1000 - 2 is displayed.

In this case, the first image is an image based on a handwritten image obtained by using the first electronic pen 1000-1 for the first medium 2000-1 and for the first electronic device 3000-1 used for the first electronic device. It may include at least one of images based on location information of the pen 1000 - 1 , and the second image is a handwriting image obtained by using the second electronic pen 1000 - 2 in the second medium 2000 - 2 . It may include at least one of an image based on the base image and an image used in the second electronic device 3000 - 2 based on location information of the second electronic pen 1000 - 2 .

The master electronic device 3000-M includes a first electronic pen 1000-1, a first electronic device 3000-1, a second electronic pen 1000-2, a second electronic device 3000-2, and a server. Image information may be acquired from at least one of 4000 through wired/wireless communication and the image may be displayed on the display of the master electronic device 3000 -M.

The master electronic device 3000 -M may allocate the first unique color information to at least one of the first electronic pen 1000 - 1 and the first electronic device 3000 - 1 . Similarly, the master electronic device 3000 -M may allocate the second unique color information to at least one of the second electronic pen 1000 - 2 and the second electronic device 3000 - 2 .

The master electronic pen 1000 -M may refer to the electronic pen 1000 used in the master electronic device 3000 -M.

The master electronic pen 1000 -M may allocate first unique color information to at least one of the first electronic pen 1000 - 1 and the first electronic device 3000 - 1 . Similarly, the master electronic pen 1000 -M may allocate the second unique color information to at least one of the second electronic pen 1000 - 2 and the second electronic device 3000 - 2 . In this case, the master electronic pen 1000 -M may directly allocate unique color information or may allocate unique color information through the master electronic device 3000 -M.

When the first image and the second image by the first electronic pen 1000-1 and the second electronic pen 1000-2 are displayed on the master electronic device 3000-M, the first image and the second image are distinguished For this purpose, the unique color information may be reflected, and for this purpose, the first unique color information and the second unique color information may be allocated to the first electronic pen 1000 - 1 and the second electronic pen 1000 - 2 , respectively.

When the master electronic device 3000-M allocates unique color information, based on at least one of a user input and a user input using the master electronic pen 1000-M, the first electronic pen 1000-1 and Transmitting first unique color information to at least one of the first electronic devices 3000-1, and transmitting second unique color information to at least one of the second electronic pen 1000-2 and the second electronic device 3000-2 can be sent.

Alternatively, the master electronic device 3000 -M may transmit the first unique color information and the second unique color information to the server 4000 and use them in each electronic pen 1000 or the electronic device 3000 .

The master electronic device 3000-M transmits the unique color information to the plurality of electronic pens 1000 and transmits the first unique color information and the second unique color information to the memory module 3400 of the master electronic device 3000-M. can be saved Alternatively, the master electronic device 3000 -M may only store the unique color information in the memory module 3400 of the master electronic device 3000 -M without transmitting the unique color information to each electronic pen 1000 .

The master electronic device 3000 -M may allocate unique color information to the plurality of electronic pens 1000 according to a specific rule.

According to an embodiment of the present invention, when the master electronic device 3000-M obtains preferred color information from each electronic pen 1000 , the master electronic device 3000-M allocates the preferred color information as unique color information to each electronic pen 1000 . can

As another embodiment, the master electronic device 3000 -M may allocate color information most recently used by each electronic pen 1000 as unique color information to each electronic pen 1000 .

As another embodiment, the master electronic device 3000 -M may allocate preset unique color information in an order of receiving pen data from each electronic pen 1000 .

As another embodiment, the master electronic device 3000 -M may allocate preset unique color information based on a user of each electronic pen 1000 or user setting information of each electronic pen 1000 .

After allocating unique color information to each electronic pen 1000 , the master electronic device 3000 -M may allocate color information different from the previously allocated color information as unique color information.

According to an embodiment of the present invention, the master electronic device 3000-M assigns red to the first electronic pen 1000-1 as the first unique color information, and then receives a user input or the first electronic pen 1000 According to the use of -1), blue may be re-allocated to the first electronic pen 1000-1 as the first unique color information.

Meanwhile, as a method of allocating unique color information, a method of setting color information in the electronic pen 1000 may be used.

When unique color information is assigned to the plurality of electronic pens 1000 , even if there is color information set in each electronic pen 1000 , the unique color information may be reflected in the image displayed on the master electronic device 3000-M. can

When each electronic pen 1000 is used, the master electronic device 3000 -M may display an image by reflecting unique color information of each electronic pen 1000 .

According to an embodiment of the present invention, the first electronic pen 1000-1 is used for the first medium 2000-1 and the second electronic pen 1000-2 is used for the second electronic device 3000-2. In this case, the master electronic device 3000 -M may display the first image reflecting the first unique color information and the second image reflecting the second unique color information on the display.

Each of the plurality of electronic pens 1000 has a first pen module 100 and a second pen module 200 , and color information reflected when the first pen module 100 is used and the second pen module 200 are used. The color information reflected at the time may be stored in the memory 600 . In this case, when the unique color information is allocated from the master electronic device 3000 -M, each of the plurality of electronic pens 1000 is uniquely allocated when the first pen module 100 and the second pen module 200 are used. Color information may be reflected.

According to an embodiment of the present invention, when the first pen module 100 of the first electronic pen 1000 - 1 is used, the first color information is reflected, and when the second pen module 200 is used, the second color information is used. When the information is reflected, the first electronic pen 1000 - 1 may be allocated first unique color information from the master electronic device 3000 -M. At this time, if the first pen module 100 of the first electronic pen 1000-1 is used, the master electronic device 3000-M may reproduce the user's handwriting based on the first unique color information, Even when the second pen module 200 of the first electronic pen 1000 - 1 is used, the master electronic device 3000 -M may display the first image based on the first unique color information and location information.

In the above description, the case in which an image is displayed in the master electronic device 3000-M has been described, but the present invention is not limited thereto, and at least one of the first electronic device 3000-1 and the second electronic device 3000-2 is also described. Images can be displayed in the same way.

In addition, although the case in which two electronic pens 1000 are used has been described above, the present invention is not limited thereto and may be similarly applied to a case in which three or more electronic pens 1000 are used.

The present invention described above is capable of various substitutions, modifications and changes within the scope without departing from the technical spirit of the present invention for those of ordinary skill in the art to which the present invention pertains. It is not limited by the drawing. In addition, the embodiments described in this document may not be limitedly applied, but all or some of the embodiments may be selectively combined so that various modifications may be made. Furthermore, steps constituting each embodiment may be used individually or in combination with steps constituting other embodiments.

100: first pen module 120: pattern detection unit
200: second pen module 300: main body
400: input unit 500: communication unit
600: memory 700: power unit
800: control unit 900: output unit
1000: electronic pen 2000: medium
3000: electronic device 4000: server

Claims (14)

The first pen nib including a writing material used for the medium and the electronic pen are pattern sensing for acquiring the user's handwriting image by the first pen nib in order to acquire first position information that is position information of the electronic pen with respect to the medium a first pen module including a unit;
a second pen module including a second pen nib for generating at least one of a magnetic field and an electric field in order for the electronic device to acquire second location information that is location information of the electronic pen with respect to the electronic device;
a battery for supplying power to the first pen module and the second pen module;
The first pen module is disposed at a first end including the first pen nib receiving portion, and the second pen module is disposed at a second end positioned in a direction opposite to the first end, wherein the first end and the second pen module are disposed. a main body in which the battery is disposed between two ends; and
When the use of the second pen module is detected while the first pressure applied to the first pen nib is not sensed for a predetermined period after power is supplied to the first pen module, the power supply to the first pen module is cut off. and,
When the use of the first pen module is detected while the second pressure applied to the second pen nib is not sensed for a predetermined period after power is supplied to the second pen module, the supply of power to the second pen module is cut off. a control unit comprising;
electronic pen. According to claim 1,
The second pen nib includes a first electrode for generating a first electric field having a first effective distance,
wherein the second pen module includes a second electrode that is spaced apart from the first electrode along a central axis of the main body in the direction of the first pen core and generates a second electric field having a second effective distance;
The second electrode is electrically connected to the battery to receive power from the battery
electronic pen. According to claim 1,
a first pressure sensor in the main body electrically connected to an unexposed end of the first pen nib to sense the first pressure; and
a second pressure sensor disposed in the second pen module and electrically connected to the second pen nib to sense the second pressure;
The first pressure sensor and the second pressure sensor are electrically connected to the battery to receive power from the battery.
electronic pen. 4. The method of claim 3,
The controller is configured to control supply of power from the battery to the first pen module based on first pressure information that is information about the first pressure.
electronic pen. 5. The method of claim 4,
The control unit is configured to, when a time from acquiring the first pressure information to acquiring the other first pressure information exceeds a first time, supply power of the battery to the first pen module for the first time to reduce the previous power supply
electronic pen. 6. The method of claim 5,
The controller may be configured to, when a time from acquiring the first pressure information to acquiring the first pressure information again exceeds a second time greater than the first time, the power of the battery to the first pen module cut off supply
electronic pen. 4. The method of claim 3,
The controller controls supply of power from the battery to the second pen module based on proximity information,
The proximity information includes second pressure information that is information about the second pressure
electronic pen. 8. The method of claim 7,
The controller may be configured to reduce the amount of power supplied from the battery to the second pen module compared to the amount of power supplied before the third time when a time from acquiring the proximity information to acquiring the other proximity information exceeds a third time letting
electronic pen. 9. The method of claim 8,
The controller may be configured to supply power from the battery to the second pen module for the third time and when a time from acquiring the proximity information to acquiring the other proximity information exceeds a fourth time greater than a third time. to reduce the power supply amount within the fourth time
electronic pen. According to claim 1,
a cap part inserted into the first end of the main body to protect the first pen nib or having a predetermined internal space inserted into the second end to protect the second pen nib and including a magnet; and
When the cap part is inserted into the main body, at least one or more magnetic sensors capable of detecting the magnet in the main body; further comprising,
The control unit controls the power supply of the battery based on whether the cap unit is inserted, detected by the magnetic sensor
electronic pen. According to claim 1,
Further comprising a binding detection sensor for detecting the binding between the electronic pen and the electronic device,
The controller is configured to cut off power supply to at least one of the first pen module and the second pen module of the battery based on a signal obtained from the binding detection sensor.
electronic pen. delete delete delete

Images