KR20140020564A - Apparatas and method for recognition distinguish infrared ray light soure with around reflected light - Google Patents

Apparatas and method for recognition distinguish infrared ray light soure with around reflected light Download PDF

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Publication number
KR20140020564A
KR20140020564A KR1020120087349A KR20120087349A KR20140020564A KR 20140020564 A KR20140020564 A KR 20140020564A KR 1020120087349 A KR1020120087349 A KR 1020120087349A KR 20120087349 A KR20120087349 A KR 20120087349A KR 20140020564 A KR20140020564 A KR 20140020564A
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KR
South Korea
Prior art keywords
infrared
points
copyboard
pen
displayed
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KR1020120087349A
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Korean (ko)
Inventor
유태현
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삼성전자주식회사
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Priority to KR1020120087349A priority Critical patent/KR20140020564A/en
Publication of KR20140020564A publication Critical patent/KR20140020564A/en

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    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/18—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for optical projection, e.g. combination of mirror and condenser and objective
    • G02B27/20—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for optical projection, e.g. combination of mirror and condenser and objective for imaging minute objects, e.g. light-pointer
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/033—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor
    • G06F3/0354—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor with detection of 2D relative movements between the device, or an operating part thereof, and a plane or surface, e.g. 2D mice, trackballs, pens or pucks
    • G06F3/03542—Light pens for emitting or receiving light
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/042—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means
    • G06F3/0425—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means using a single imaging device like a video camera for tracking the absolute position of a single or a plurality of objects with respect to an imaged reference surface, e.g. video camera imaging a display or a projection screen, a table or a wall surface, on which a computer generated image is displayed or projected
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/80—Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Human Computer Interaction (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Optics & Photonics (AREA)
  • Multimedia (AREA)
  • User Interface Of Digital Computer (AREA)

Abstract

The present invention provides a method of operating a dongle, the method comprising: recognizing at least two infrared points displayed on an electronic blackboard; And a device and a method for identifying a source of ambient light and ambient reflected light by identifying the infrared point of any one or more of the recognized at least two infrared points projected from an infrared pen. will be.

Description

Apparatus and method for distinguishing infrared light source and ambient reflected light {APPARATAS AND METHOD FOR RECOGNITION DISTINGUISH INFRARED RAY LIGHT SOURE WITH AROUND REFLECTED LIGHT}

The present invention relates to an electronic blackboard system.

As digital technology develops, the copyboard can also be equipped with a variety of functions to increase user satisfaction. More specifically, since the copyboard operates based on a PC having an operating system, the copyboard can run PowerPoint, Excel, Word, Web browser, Photoshop, and video on the copyboard, and the writing on the copyboard is also possible. In other words, because of its high utilization, electronic blackboards are used in various places such as schools and businesses. For example, the use of electronic blackboards in educational institutions, etc. are being used in audiovisual lectures, or in meetings conducted by companies.

However, in the conventional copyboard system, when the infrared penetrates the infrared copy from the infrared pen to the copyboard, a light source of the infrared pen is reflected by a surrounding object to cause the infrared camera to recognize two or more infrared points. That is, the infrared camera cannot determine which infrared point of the two or more infrared points displayed on the copyboard is projected from the infrared pen, and thus there is a problem that the infrared pen cannot accurately analyze the movement trajectory that is moved on the copyboard.

Therefore, there is an urgent need to develop a method for identifying which infrared point, which is recognized as two or more infrared points displayed on the copyboard by the infrared camera, is projected and displayed from the infrared pen onto the copyboard.

The present invention has been proposed to solve the above problems of the conventionally proposed methods, and to provide an apparatus and method for identifying an infrared point projected from an infrared pen among two or more infrared points displayed on an electronic blackboard. The purpose.

Another object of the present invention is to provide an apparatus and method for transmitting and receiving information on an infrared point displayed on an electronic blackboard by connecting to an infrared pen and a dongle in near field communication.

It is an object of the present invention to provide a device and method that can display various infrared points on the copyboard by adjusting the shape and brightness of the infrared light source of the infrared pen to distinguish them from other infrared points displayed on the copyboard by the reflected light. .

According to an aspect of the present invention, a method of operating a dongle capable of discriminating and recognizing an infrared light source and ambient reflected light may include at least two infrared points displayed on an electronic board. Recognition process; And a process of confirming that at least one of the recognized infrared points is projected from the infrared pen.

Preferably, the method may further include transmitting information indicating that the at least two infrared points are recognized to the infrared pen through short-range communication.

Preferably, the information indicating that the at least two infrared points are recognized may include information regarding the appearance of the at least two infrared points displayed on the copyboard.

Preferably, the step of receiving information on the appearance of the at least two infrared points to be displayed on the copyboard due to the infrared rays projected from the infrared pen to the copyboard; And storing information regarding the appearance of the at least two infrared points received.

Preferably, the step of confirming that the infrared point of any one or more of the recognized at least two infrared points is projected from the infrared pen, the appearance of the infrared point of any one or more of the at least two infrared points displayed on the copyboard Confirming that it is deformed and distinguished from the appearance of the remaining infrared points; Confirming that the appearance of the modified infrared point coincides with the appearance of the stored infrared point; And confirming that the modified infrared point is projected from the infrared pen.

Preferably, the step of analyzing the position coordinates of the infrared point displayed on the copyboard due to the infrared rays projected from the infrared pen to the copyboard; And transmitting information regarding the analyzed position coordinates of the infrared point to the electronic device using short-range communication.

According to an aspect of the present invention, an infrared pen operating method capable of distinguishing and recognizing an infrared light source and ambient reflected light may include recognizing at least two infrared points from a dongle in an operating method of an infrared pen. Receiving information that has been made; And adjusting the shape and brightness of the light source of the infrared light to be projected on the copyboard so as to be distinguished from other infrared points among the at least two infrared points.

Preferably, the method may further include projecting an infrared ray onto the copyboard.

Preferably, the information indicating that the at least two infrared points are recognized is received from the dongle through short-range communication, and may include information about the appearance of the at least two infrared points displayed on the copyboard.

Preferably, the method may further include receiving an appearance of at least two infrared points to be displayed on the copyboard due to the infrared rays to be projected onto the copyboard.

Preferably, the step of adjusting the shape and brightness of the infrared light source to be projected on the copyboard so as to be distinguished from other infrared points of the at least two infrared points, the other infrared of the at least two infrared points displayed on the copyboard Checking the appearance of the points; And adjusting the shape or brightness of the infrared light source to display one of at least two infrared points set so as not to overlap with the appearance of the other infrared points on the copyboard.

According to an aspect of the present invention, an operating method of an electronic device capable of distinguishing and recognizing an infrared light source and ambient reflected light may be provided. Receiving information; And transmitting the information about the movement trajectory to the projector so that the movement trajectory of the infrared pen can be displayed on the copyboard.

Preferably, the information about the position coordinates of the infrared pen is received from the dongle through short-range communication, and the position coordinates of the infrared point displayed on the electronic blackboard due to the infrared rays projected from the infrared pen to the electronic blackboard. Information may be included.

Preferably, the process of transmitting the information on the movement trajectory to the projector so that the movement trajectory of the infrared pen can be displayed on the copyboard, analyzing the received position coordinates to obtain information on the movement trajectory of the infrared pen. Producing process; And transmitting information on the generated movement trajectory to the projector.

A dongle capable of discriminating and recognizing an infrared light source and ambient reflected light according to a feature of the present invention for achieving the above object, in the dongle, recognizes at least two or more infrared points displayed on the copyboard, the recognized A controller for confirming that at least one infrared point of the at least two infrared points is projected from the infrared pen; And a storage unit for storing information controlled by the control unit.

Preferably, the communication module may further include a communication module for transmitting the information indicating that the at least two infrared points are recognized to the infrared pen through short range communication.

Preferably, the information indicating that the at least two infrared points are recognized may include information regarding the appearance of the at least two infrared points displayed on the copyboard.

Preferably, the electronic device further includes an input unit configured to receive information regarding the appearance of at least two infrared points to be displayed on the electronic blackboard due to the infrared rays to be projected from the infrared pen to the electronic blackboard, and the storage unit includes the received at least Information about the appearance of two or more infrared points can be stored.

Preferably, the control unit determines that the appearance of any one of the at least one infrared point of the at least two infrared points displayed on the copyboard is deformed and distinguished from the appearance of the other infrared point, and the It is confirmed that the appearance of the external point and the appearance of the stored infrared point coincides, and that the modified one of the infrared point is projected from the infrared pen.

Preferably, the controller analyzes the position coordinates of the infrared point displayed on the electronic blackboard due to the infrared rays projected from the infrared pen to the electronic blackboard, and performs short-range communication based on the information about the position coordinates of the analyzed infrared point. The communication module may further include a communication module for transmitting to the electronic device by using.

According to an aspect of the present invention for achieving the above object, an infrared pen capable of discriminating and recognizing an infrared light source and ambient reflected light, the infrared pen, communication for receiving information that at least two or more infrared points were recognized from the dongle module; And a controller for adjusting the shape or brightness of the infrared light source to be projected onto the copyboard so as to be distinguished from other infrared points among the at least two infrared points.

Preferably, the electronic blackboard may further include an output unit for projecting infrared rays.

Preferably, the information indicating that the at least two infrared points are recognized is received from the dongle through short-range communication, and may include information about the appearance of the at least two infrared points displayed on the copyboard.

Preferably, the electronic device may further include an input unit configured to receive an appearance of at least two infrared points to be displayed on the electronic blackboard due to the infrared rays to be projected onto the electronic blackboard.

Preferably, the controller checks the appearance of another infrared point among at least two infrared points displayed on the copyboard, and checks any one of the at least two infrared points set so as not to overlap with the appearance of the other infrared points. The shape or brightness of the infrared light source can be adjusted to display on the copyboard.

According to an aspect of the present invention, an electronic device capable of distinguishing and recognizing an infrared light source and ambient reflected light, the electronic device, receives information regarding a position coordinate of an infrared pen from a dongle, A communication module for transmitting information about the movement trajectory to the projector so that the movement trajectory of the infrared pen can be displayed on the electronic blackboard; And a processor unit for controlling the overall operation of the electronic device.

Preferably, the information about the position coordinates of the infrared pen is received from the dongle through short-range communication, and the position coordinates of the infrared point displayed on the electronic blackboard due to the infrared rays projected from the infrared pen to the electronic blackboard. Information may be included.

Preferably, the processor unit may analyze the received position coordinates to generate information about a movement trajectory of the infrared pen, and the communication module may transmit information about the generated movement trajectory to the projector. have.

According to the apparatus and method for distinguishing and recognizing the infrared light source and the ambient reflected light of the present invention, there is an effect of reducing the misrecognition by identifying the infrared point projected from the infrared pen among two or more infrared points displayed on the copyboard. .

1 is a view showing an embodiment of the overall configuration of a system capable of distinguishing and recognizing an infrared light source and ambient reflected light according to the present invention.
2 is a view showing an embodiment in which the infrared light projected by the peripheral object is reflected when the infrared light is projected by the electronic blackboard in the infrared pen according to the present invention.
3 is a view showing an embodiment of modifying the appearance of the infrared point displayed on the copyboard in the infrared pen according to the present invention.
4 is a view showing another embodiment of modifying the appearance of the infrared point displayed on the copyboard in the infrared pen according to the present invention.
5 is a view showing an embodiment in which a moving trajectory of an infrared pen is displayed on an electronic blackboard according to the present invention;
6 is a flowchart illustrating a method of operating a dongle according to an embodiment of the present invention.
7 is a flowchart illustrating a method of operating an infrared pen according to an embodiment of the present invention.
8 is a flowchart illustrating a method of operating an electronic device according to an embodiment of the present disclosure.
9 is a block diagram showing the configuration of a dongle according to an embodiment of the present invention.
10 is a block diagram showing a configuration of an infrared pen according to an embodiment of the present invention.
11 is a block diagram showing the configuration of an electronic device according to an embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear. The following terms are defined in consideration of the functions of the present invention, and these may be changed according to the intention of the user, the operator, or the like. Therefore, the definition should be based on the contents throughout this specification.

1 is a view showing an embodiment of the overall configuration of a system capable of distinguishing and recognizing an infrared light source and ambient reflected light according to the present invention. As shown in FIG. 1, a system capable of distinguishing and recognizing an infrared light source and ambient reflected light according to the present invention includes an electronic device 101, a projector 102, an electronic blackboard 103, a dongle 104, and an infrared ray. It may consist of a pen 106.

The electronic device 101 transmits an image signal of the corresponding content to the projector 102 in order to display the stored arbitrary content on the copyboard 103. More specifically, at least one content is stored in the electronic device 101. In order to display one of the stored contents on the electronic blackboard 103, an image signal of the corresponding content must be transmitted to the projector 102. . For example, when the electronic device 101 receives a playback of an arbitrary video stored in the user, the electronic device 101 transmits the video signal of the video to the projector 102.

In addition, the electronic device 101 receives information about the position coordinates of the infrared pen 106 from the dongle 104 so that the movement trace of the infrared pen 106 can be displayed on the electronic blackboard 103. Information about the movement trajectory of the " Here, the information about the position coordinates of the infrared pen 106 may be defined as information about the infrared point displayed on the electronic blackboard 103 due to the infrared rays projected from the infrared pen 106 to the electronic blackboard 103. More specifically, the dongle 104 recognizes the infrared point displayed on the copyboard 103 due to the infrared rays projected from the infrared pen 106 to the copyboard 103 by the infrared camera 105 provided therein. That is, the electronic device 101 receives information about the position coordinates of the infrared point displayed on the electronic blackboard 103 by the infrared pen 106 from the dongle 104. Thereafter, the electronic device 101 transmits information about the movement trajectory of the infrared pen 106 to the projector 102 so that the movement trajectory of the infrared pen 106 can be displayed on the electronic blackboard 103. More specifically, the electronic device 101 analyzes the information about the position coordinates of the infrared pen 106 received from the dongle 104, generates information on the movement trajectory of the infrared pen 106, and generates the movement trajectory. Transmits the information about to the projector 102.

The projector 102 is a device for projecting an image signal received from the electronic device 101 onto the electronic blackboard 103. More specifically, the projector 102 receives an arbitrary image signal from the electronic device 101 and projects the image signal onto the electronic blackboard 103. In addition, the projector 102 receives information about the movement trajectory of the infrared pen 106 from the electronic device 101 and projects the movement trajectory onto the electronic blackboard 103. More specifically, after the projector 102 receives the information on the movement trajectory of the infrared pen 106 from the electronic device 101, the movement trajectory of the infrared pen 106 may be displayed on the electronic blackboard 103. The movement trajectory of the infrared pen 106 is projected onto the copyboard 103 together with any image signal currently being projected.

The copyboard 103 receives an arbitrary image signal from the projector 102 and displays it on the screen. In addition, the copyboard 103 receives a moving trace of the infrared pen 106 together with an arbitrary image signal from the projector 102 and displays it on the screen.

The dongle 104 recognizes the position coordinates of the infrared point displayed on the electronic blackboard 103 and transmits information about the position coordinates of the infrared point to the electronic device 101. More specifically, the dongle 104 includes an infrared camera 105 therein, recognizes the position coordinates of the infrared point displayed on the electronic blackboard, and transmits the position coordinates to the electronic device 101 through near field communication.

If at least two or more infrared points displayed on the copyboard are displayed, the dongle 104 checks whether any one of the recognized at least two infrared points is projected from the infrared pen 106. More specifically, the infrared camera 105 provided in the dongle 104 may recognize the infrared point displayed on the copyboard 103. When at least two infrared points are recognized by the infrared camera 105, the dongle 104 may be recognized. ) Identifies which infrared point of the recognized at least two infrared points is projected from the infrared pen 106. That is, when there is a material made of a metallic material around the infrared projection from the infrared pen 106 to the copyboard 103, the infrared rays projected from the infrared pen 106 are reflected on the surrounding metallic material and thus the copyboard 103 ) May display at least two infrared points.

Conventionally, as described above, when at least two or more infrared points are displayed on the copyboard 103, the dongle 104 cannot identify which infrared point is projected from the infrared pen 106 and displayed, thus causing misrecognition. . For example, if a user wears a metal material such as a watch or bracelet and gives a lecture using an infrared pen, the infrared light reflected from the infrared pen is reflected on the user's watch or bracelet, and two or more infrared points are displayed on the copyboard. There was a case. Therefore, the dongle 104 may not determine which infrared point among two or more infrared points displayed on the copyboard 103 is projected and displayed from the infrared pen, thereby causing a malfunction.

However, in the dongle 104 of the present invention, if it is recognized that at least two infrared points are displayed on the copyboard 103, the malfunction does not occur. Send. Here, the information that the at least two infrared points are recognized may include information about the appearance of the at least two infrared points displayed on the copyboard 103. That is, when the dongle 104 transmits information that the at least two infrared points are recognized from the dongle 104 to the infrared pen 106, the information includes information regarding the appearance of the at least two infrared points displayed on the copyboard 103. do. Thereafter, the infrared pen 106 adjusts the shape or brightness of the infrared light source to modify the appearance of the infrared point so as to be distinguished from other infrared points among at least two infrared points displayed on the copyboard 103. Accordingly, the dongle 104 has an advantage of identifying which infrared point among at least two infrared points displayed on the copyboard 103 is projected from the infrared pen 106 and displayed.

Let us look specifically at the process of confirming that the infrared point of any of the at least two infrared points in the dongle 104 is projected from the infrared pen. First, the dongle 104 confirms that the external shape of any one of the at least two infrared points displayed on the copyboard 103 is deformed and distinguished from the external infrared point. More specifically, when the dongle 104 transmits the information that the at least two infrared points are recognized by the infrared pen 106, the infrared pen 106 duplicates the appearance of the other infrared points displayed on the copyboard 103. The shape or brightness of the infrared light source is adjusted so as not to modify the appearance of the infrared point currently displayed on the copyboard 103. Subsequently, in the dongle 104, it may be confirmed that the appearance of one of the at least two infrared points displayed on the copyboard 103 is deformed to distinguish the appearance of the remaining infrared points.

Subsequently, the dongle 104 confirms that the appearance of the deformed infrared point coincides with the appearance of the stored infrared point, so that the deformed infrared point is projected from the infrared pen. More specifically, the dongle 104 is modified by receiving information about the appearance of at least two infrared points to be displayed on the copyboard 103 due to the infrared rays projected from the infrared pen 106 onto the copyboard 103 in advance. It can be seen that the infrared point is projected from the infrared pen 106 and displayed. That is, the dongle 104 checks the deformed infrared point among the at least two infrared points displayed on the copyboard 103 and indicates that the deformed infrared point is projected from the electronic pen 106 when it is identical to the appearance of the stored infrared point. You can check it.

In addition, the dongle 104 analyzes the position coordinates of the infrared points displayed on the electronic blackboard 103 due to the infrared rays projected from the infrared pen 106 to the electronic blackboard 103, and relates to the position coordinates of the analyzed infrared points. The information is transmitted to the electronic device 101. More specifically, if the dongle 104 identifies the infrared points projected from the infrared pen 106 among the at least two infrared points displayed on the copyboard 103, the dongle 104 is located at the location of the identified infrared point. The coordinates are analyzed and information about the position coordinates of the analyzed infrared point is transmitted to the electronic device 101.

The infrared pen 106 projects the infrared rays onto the copyboard 103. In addition, when the infrared pen 106 receives information that at least two infrared points are recognized from the dongle 104, the infrared pen 106 adjusts the shape or brightness of the infrared light source to be projected onto the copyboard 103 so as to be distinguished from other infrared points. . First, the infrared pen 106 receives an external shape of at least two infrared points to be displayed on the electronic blackboard 103 due to the infrared rays to be projected onto the electronic blackboard 103 in advance. Thereafter, the infrared pen 106 may be received from the dongle 104 using short-range communication for information that at least two infrared points have been recognized, wherein the information indicating that the at least two infrared points have been recognized is displayed on the copyboard 103. Information on the appearance of the displayed at least two infrared points is included. Therefore, the infrared pen 106 adjusts the shape or brightness of the infrared light source so as to be distinguished from the appearance of other infrared points, and again projects the infrared rays on the copyboard 103. That is, the dongle 104 can identify the infrared point of which the appearance of the infrared point is deformed among the at least two infrared points displayed on the copyboard 103.

2 is a view showing an embodiment in which the infrared light projected by a peripheral object is reflected when the infrared light is projected by the electronic blackboard in the infrared pen according to the present invention. First, the user holds the infrared pen 201 on one hand and the watch 204 on the wrist of the other hand to provide additional explanation to any content displayed on the copyboard 202. Suppose you are in a class.

When the user points to a specific portion of the tram board 202 with the infrared pen 201 in order to further explain any content displayed on the copy board 202, the infrared pen 201 projects the infrared rays to project the copy board. Infrared point 203 is displayed at 202. However, the infrared rays projected from the infrared pen 201 may be reflected by the watch 204 worn on the wrist of the other hand of the user so that another infrared point 205 may be displayed on the copyboard 202. The dongle recognizes the infrared points displayed on the copyboard 202 in real time. In the above-described example, two infrared points 202 and 205 are displayed on the copyboard 202. It is not possible to determine whether it is projected and displayed from 201.

In the dongle of the present invention, the infrared blackboard 201 transmits information to the infrared pen 201 that two infrared points 203 and 205 are recognized. More specifically, the dongle does not cause malfunction when two or more infrared points are recognized on the copyboard 202, and infrared points 203 and 205 displayed on the copyboard 202 together with information that two or more infrared points have been recognized. Information about the external appearance of the i) is transmitted to the infrared pen 201. Thereafter, the infrared pen 201 changes the external shape of the infrared point to an external shape that is set so that the external shape of the infrared point 203 currently projected on the copyboard 202 and the external shape of the other infrared point 205 do not overlap. Accordingly, in the dongle of the present invention, there is an advantage in that which infrared point among at least two infrared points displayed on the copyboard 202 is projected from the infrared pen 201 and displayed.

3 is a view showing an embodiment of modifying the appearance of the infrared point displayed on the copyboard in the infrared pen according to the present invention. 3A is a diagram illustrating an embodiment in which at least two infrared points are displayed on an electronic blackboard according to the present invention. As shown in FIG. 3A, three infrared points 301, 302, and 303 are displayed on the copyboard. One infrared point 303 of the infrared points displayed on the copyboard is projected from the infrared pen and displayed on the copyboard, and the other two infrared points 301 and 302 indicate that the infrared rays projected from the infrared pen are placed on a metal object or the like. It is reflected and displayed. For example, when a user projects infrared rays on an electronic blackboard using an infrared pen, but infrared rays are reflected on a peripheral metal object or the like, the electronic blackboard is reflected and reflected by an infrared point 303 displayed on the electronic pen and a metal object. The projected and displayed infrared points 301, 302 are displayed together. That is, (a) of FIG. 3 shows that the infrared points 303 projected from the infrared pen and displayed on the copyboard and the infrared points 301 and 302 displayed and reflected by the infrared rays projected from the infrared pen are displayed together. will be.

Figure 3 (b) is a view showing an embodiment of modifying the appearance of the infrared point displayed on the copyboard in the infrared pen according to the present invention. First, the dongle can recognize the infrared points displayed on the copyboard. As shown in FIG. 3 (a), the dongle has three infrared points 301, 302, 303 displayed on the copyboard. can confirm. However, the dongle cannot determine which infrared point among the three infrared points 301, 302, and 303 displayed on the copyboard is projected from the infrared pen and displayed. Therefore, the dongle performs short-range communication based on the information about the appearance of the three infrared points 301, 302, and 303 displayed on the copyboard along with the information that the infrared pens recognize the three infrared points (301, 302, and 303). To transmit.

Infrared pens that have received information about the appearance of the three infrared points 301, 302, and 303 displayed on the copyboard along with information that the three infrared points 301, 302, and 303 have been recognized from the dongle are currently on the copyboard. Infrared projections confirm that the appearance 303 of the displayed infrared point is the same as the appearance 301, 302 of the other infrared point. Thereafter, the infrared pen identifies the appearance of the infrared point set to display on the copyboard by distinguishing the appearance of the other infrared points 301 and 302 displayed on the copyboard. That is, the infrared pen has the shape of the infrared light source of the infrared pen to display the appearance of the infrared point, which can be distinguished from the appearance of the other infrared points 301 and 302 displayed on the copyboard, among the appearances of the set infrared points. Adjust the brightness. More specifically, the infrared pen checks the shapes 301 and 302 of other infrared points among the three infrared points 301, 302 and 303 displayed on the copyboard, and overlaps the shapes 301 and 302 of other infrared points. The shape or brightness of the infrared light source is adjusted to display one of the at least two infrared points which are not set on the copyboard.

As shown in (a) and (b) of FIG. 3, the infrared ray has confirmed that the pen has the same shape 301 and 302 of the other infrared point as the shape 303 of the infrared point currently being displayed on the copyboard. The shape of the infrared light source is adjusted to distinguish it from the shapes of the other infrared points 301 and 302. The copyboard then displays the appearance of the infrared points 304 and other infrared points 301, 302 projected from the infrared pen and displayed. That is, in the dongle, it may be confirmed that the appearance of the infrared point 303 of the three infrared points 301, 302, and 303 initially displayed on the copyboard is modified and displayed in a triangle shape 304. Therefore, the dongle confirms that the appearance 304 of the modified infrared point is in the appearance of the stored infrared point, and the infrared rays projected from the infrared pen among the three infrared points 301, 302, 304 displayed on the copyboard are displayed. Point 304 can be identified.

4 is a view showing another embodiment of modifying the appearance of the infrared point displayed on the copyboard in the infrared pen according to the present invention. 4A is a diagram illustrating an embodiment in which at least two infrared points according to the present invention are displayed on an electronic blackboard. As shown in FIG. 4A, three infrared points 401, 402, and 403 are displayed on the copyboard. One infrared point 403 of the infrared points displayed on the copyboard is projected from the infrared pen and displayed on the copyboard, and the other two infrared points 401 and 402 indicate that the infrared rays projected from the infrared pen are placed on a metal object or the like. It is reflected and displayed. For example, when a user projects an infrared ray on an electronic blackboard using an infrared pen, but infrared light is reflected on a peripheral metal object or the like, the electronic blackboard is reflected and reflected by an infrared point 403 and a metal object projected from the infrared pen and displayed. The projected and displayed infrared points 401, 402 are displayed together. That is, in FIG. 4A, the infrared points 403 projected from the infrared pen and displayed on the copyboard and the infrared points 401 and 402 reflected and displayed by the infrared rays projected from the infrared pen may be displayed together. .

Figure 4 (b) is a view showing another embodiment of modifying the appearance of the infrared point displayed on the copyboard in the infrared pen according to the present invention. First, the dongle can recognize the infrared points displayed on the copyboard. As shown in FIG. 4A, the dongle has three infrared points 401, 402. 403 displayed on the copyboard. can confirm. However, the dongle cannot determine which infrared point among the three infrared points 401, 402, 403 displayed on the copyboard is projected from the infrared pen and displayed. Therefore, the dongle performs short-range communication based on the information about the appearance of the three infrared points 401, 402, and 403 displayed on the copyboard along with the information that the infrared pens recognize the three infrared points (401, 402, and 403). To transmit.

Infrared pens that have received information about the appearance of the three infrared points 401, 402, 403 displayed on the copyboard along with information that they have recognized the three infrared points 401, 402, 403 from the dongle are currently copyboards. Infrared projections confirm that the appearance 403 of the displayed infrared point is the same as the appearance 401, 402 of the other infrared point. Thereafter, the infrared pen identifies the appearance of the infrared point set to display on the copyboard by distinguishing the appearance of the other infrared points 401 and 402 displayed on the copyboard. That is, the infrared pen has the shape of the infrared light source of the infrared pen to display the appearance of the infrared point, which can be distinguished from the appearance of the other infrared points 401 and 302 displayed on the copyboard, among the appearance of the set infrared points, or Adjust the brightness. More specifically, the infrared pen checks the appearance 401, 402 of the other infrared point among the three infrared points 401, 402, 403 displayed on the copyboard, and overlaps the appearance 401, 402 of the other infrared point. The shape or brightness of the infrared light source is adjusted to display one of the at least two infrared points which are not set on the copyboard.

As shown in (a) and (b) of FIG. 4, after the infrared light confirms that the pen has the same shape (401, 402) as the shape of the infrared point (403), which is currently displayed on the copyboard, The brightness of the infrared light source is adjusted to distinguish it from the shapes of the other infrared points 401 and 402. The copyboard then displays the appearance of the infrared points 404 and other infrared points 401, 402 projected from the infrared pen and displayed. That is, in the dongle, it may be confirmed that the appearance of one of the three infrared points 401, 402, and 403 first displayed on the copyboard is deformed 404 to be larger than that of the other infrared points. . Accordingly, the dongle confirms that the appearance 404 of the modified infrared point is in the appearance of the stored infrared point, and the infrared rays projected from the infrared pen among the three infrared points 401, 402, 404 displayed on the copyboard are displayed. Point 404 can be identified.

5 is a view showing an embodiment in which the movement trajectory of the infrared pen is displayed on the copyboard according to the present invention. First, in the dongle, infrared rays are projected from the infrared pen onto the copyboard to check the position coordinates of the displayed infrared points. More specifically, in the dongle, only infrared rays are projected from the infrared pen onto the copyboard, and only the position coordinates of the displayed infrared points can be checked, and the movement trajectories of the infrared points cannot be confirmed. That is, in the dongle, infrared rays are projected from the infrared pen onto the electronic blackboard to check the position coordinates of the displayed infrared points and transmit them to the electronic device.

Thereafter, the electronic device transmits information about the movement trace to the projector so that the movement trace 502 of the infrared pen can be displayed on the electronic blackboard 501. More specifically, the electronic device analyzes the position coordinates of the infrared pen received from the dongle, generates information on the movement trajectory of the infrared pen, and transmits the generated information on the movement trajectory to the projector. That is, the electronic device transmits the information on the movement trajectory of the infrared pen to the projector along with any stored content.

The projector receives an arbitrary image signal from the electronic device and projects the image signal onto the copyboard 501. In addition, the projector receives the information on the movement trajectory of the infrared pen from the electronic device and projects the movement trajectory 502 on the electronic blackboard 501. More specifically, after the projector receives the information on the movement trajectory of the infrared pen from the electronic device, any of the image signals currently being projected so that the movement trajectory 502 of the infrared pen can be displayed on the copy board 501 is provided. Together, the movement trajectory 502 of the infrared pen is projected onto the copyboard 501. Thus, the user can see the movement trajectory 502 of the infrared pen displayed with the arbitrary content on the copyboard 501.

6 is a flowchart illustrating a method of operating a dongle according to an embodiment of the present invention. As shown in FIG. 6, the dongle determines whether at least two infrared points displayed on the copyboard are recognized (601). More specifically, the infrared camera provided in the dongle can recognize the infrared point displayed on the copyboard. When at least two infrared points are recognized by the infrared camera, the dongle is the infrared point of any one or more of the recognized infrared points. Determine whether is projected from the infrared pen. For example, when an infrared pen is projecting infrared rays to the copyboard, if there is a material made of a metallic material around it, the infrared rays projected from the infrared pen will be reflected on the surrounding metal material, and the copyboard will display at least two infrared points. Can be.

If it is determined that the dongle has recognized at least two or more infrared points displayed on the copyboard, the dongle transmits information that the dongle has recognized at least two or more infrared points (602). More specifically, the dongle does not cause a malfunction when it is recognized that at least two infrared points are displayed on the copyboard, and transmits information that the infrared pen has recognized at least two infrared points once. Here, the information indicating that the at least two infrared points are recognized may include information regarding the appearance of the at least two infrared points displayed on the copyboard. That is, when the dongle transmits information that the at least two infrared points are recognized by the infrared pen, the dongle includes information on the appearance of the at least two infrared points displayed on the copyboard.

Thereafter, the dongle confirms that the infrared point of any one or more recognized infrared points is projected from the infrared pen (603). The dongle confirms that the appearance of one of the at least two infrared points displayed on the copyboard has been deformed to distinguish it from the rest of the infrared points. More specifically, when the dongle transmits information that the infrared pen recognizes at least two infrared points, the infrared pen adjusts the shape or brightness of the infrared light source of the infrared pen so that it does not overlap with the appearance of other infrared points displayed on the copyboard. Adjust to change the appearance of the infrared point currently displayed on the copyboard. Subsequently, in the dongle, it is possible to confirm that the appearance of any one of the at least two infrared points displayed on the copyboard is distinguished from the appearance of the remaining infrared points. That is, the dongle may check the deformed infrared point among at least two infrared points displayed on the copyboard, and may confirm that the deformed infrared point is projected from the electronic pen when it is identical to the appearance of the stored infrared point.

The dongle, which has confirmed that the infrared point of any one or more recognized infrared points is projected from the infrared pen, analyzes the position coordinates of the infrared points displayed on the copyboard and transmits them to the electronic device (604). That is, the dongle analyzes the position coordinates of the infrared points displayed on the electronic blackboard due to the infrared rays projected from the infrared pen to the electronic blackboard, and transmits information about the analyzed position coordinates of the infrared points to the electronic device. More specifically, if the dongle checks the displayed infrared point projected from the infrared pen among at least two infrared points displayed on the copyboard, the dongle analyzes the position coordinates of the identified infrared point, thereby determining the position coordinates of the analyzed infrared point. Send information about the to the electronic device.

If the dongle determines that at least two or more infrared points displayed on the copyboard are not recognized in the above-described determination process 601, the dongle immediately analyzes the position coordinates of the infrared points displayed on the copyboard and transmits them to the electronic device. Of course.

7 is a flowchart illustrating a method of operating an infrared pen according to an exemplary embodiment of the present invention. As shown in FIG. 7, the infrared pen projects infrared rays onto the copyboard (701). More specifically, when the infrared pen projects infrared rays onto the copyboard, the infrared points are displayed on the copyboard due to the infrared rays projected from the infrared pen.

Thereafter, the infrared pen determines whether the at least two infrared points have been recognized from the dongle (702). More specifically, when it is determined that at least two infrared points are displayed on the copyboard, the dongle receives information that at least two infrared points have been recognized by the infrared pen. That is, the dongle cannot determine which infrared point among at least two infrared points displayed on the copyboard is projected from the infrared pen and displayed. Here, the information indicating that the at least two infrared points are recognized may include information regarding the appearance of the at least two infrared points displayed on the copyboard. That is, when the infrared pen receives information that the at least two infrared points are recognized from the dongle, the infrared pen includes information regarding the appearance of the at least two infrared points displayed on the copyboard.

The infrared pen then checks the appearance of the other infrared point among the at least two infrared points displayed on the copyboard (703). More specifically, since the dongle cannot identify the displayed infrared point projected from the infrared pen among at least two infrared points displayed on the copyboard, the infrared pen displays the infrared point which can be distinguished from the appearance of other infrared points. Check the appearance of the other infrared points to display on the screen.

The infrared pen which checks the appearance of the other infrared point among the at least two infrared points displayed on the copyboard adjusts the shape or brightness of the infrared light source so as not to overlap with the appearance of the other infrared point. More specifically, the infrared pen adjusts the shape or brightness of the infrared light source so as to be distinguished from the appearance of other infrared points to project the infrared rays back to the copyboard. That is, the dongle can identify the infrared point of which the appearance of the infrared point is deformed among at least two infrared points displayed on the copyboard.

8 is a flowchart illustrating a method of operating an electronic device according to an embodiment of the present disclosure. As shown in FIG. 8, the electronic device receives information regarding the position coordinates of the infrared pen from the dongle (801). Here, the information about the position coordinates of the infrared pen may be defined as information about the infrared point displayed on the electronic blackboard due to the infrared rays projected from the infrared pen to the electronic blackboard. More specifically, the dongle recognizes the infrared point displayed on the copyboard due to the infrared rays projected from the infrared pen to the copyboard with an infrared camera provided therein. That is, the electronic device receives information on the position coordinates of the infrared point displayed on the copyboard by the infrared pen from the dongle.

Thereafter, the electronic device analyzes the position coordinates of the infrared pen received from the dongle and generates information on the movement trajectory (802). More specifically, the electronic device analyzes the information about the position coordinates of the infrared pen received from the dongle to generate information on the movement trajectory of the infrared pen. That is, the electronic device generates information about the movement trajectory of the infrared pen to display the movement trajectory of the infrared pen with the electronic blackboard together with any stored content.

Thereafter, the electronic device transmits the generated information about the movement trajectory of the infrared pen to the projector (803). More specifically, the electronic device analyzes the position coordinates of the infrared pen received from the dongle, generates information on the movement trajectory of the infrared pen, and transmits the generated information on the movement trajectory to the projector. That is, the electronic device transmits the information on the movement trajectory of the infrared pen to the projector along with any stored content.

9 is a block diagram showing the configuration of a dongle according to an embodiment of the present invention. As shown in FIG. 9, the dongle according to the present invention may include a communication module 901, a controller 903, an input unit 905, and a storage unit 907.

The communication module 901 processes signals transmitted and received through an antenna for voice and data communication. The communication module 901 according to the present invention transmits information indicating that at least two infrared points are recognized by the infrared pen, and transmits information about the position coordinates of the analyzed infrared points to the electronic device.

The controller 903 controls the overall operation of the dongle. The controller 9003 according to the present invention recognizes at least two or more infrared points displayed on the copyboard, and confirms that any one of the recognized at least two infrared points is projected from the infrared pen. In addition, the controller 903 confirms that the appearance of the infrared point of any one or more of the at least two infrared points displayed on the copyboard is deformed and distinguished from the appearance of the remaining infrared points. It is confirmed that the appearance of the infrared points coincides with each other, and that the modified one of the infrared points is projected from the infrared pen. In addition, the controller 903 analyzes the position coordinates of the infrared point displayed on the copyboard due to the infrared rays projected from the infrared pen onto the copyboard.

The input unit 905 provides input data generated by the user's selection to the controller 903. The input unit 905 according to the present invention receives information regarding the appearance of at least two infrared points to be displayed on the copyboard due to the infrared rays to be projected from the infrared pen to the copyboard.

The storage unit 907 may include a program storage unit for storing a program for controlling the operation of the dongle and a data storage unit for storing data generated while the program is being executed. The storage unit 907 according to the present invention stores information on the appearance of at least two infrared points received.

In the above-described block configuration, the controller 903 may perform the overall function of the dongle. In the present invention, these are separately constructed and described in order to describe each function separately. Therefore, in the case of actually implementing a product, all of the functions of the dongle may be configured to be processed by the controller 903, and only some of the functions may be configured to be processed by the controller 903.

10 is a block diagram showing the configuration of an infrared pen according to an embodiment of the present invention. As shown in FIG. 10, the infrared pen according to the present invention may include a communication module 1001, a controller 1003, an input unit 1005, and an output unit 1007.

The communication module 1001 processes signals transmitted and received through an antenna for voice and data communication. The communication module 1001 according to the present invention may receive information that at least two infrared points have been recognized from the dongle.

The controller 1003 controls the overall operation of the infrared pen. The controller 1003 according to the present invention adjusts the shape or brightness of the infrared light source to be projected on the copyboard so as to be distinguished from other infrared points among at least two infrared points. In addition, the controller 1003 checks the appearance of another infrared point among the at least two infrared points displayed on the copyboard, and displays any one of at least two infrared points set to not overlap with the appearance of the other infrared points on the copyboard. Adjust the shape or brightness of the infrared light source to display.

The input unit 1005 provides the control unit 1003 with input data generated by the user's selection. The input unit 1005 according to the present invention receives the appearance of at least two infrared points to be displayed on the copyboard due to the infrared rays to be projected onto the copyboard.

The output unit 1007 projects infrared rays on the copyboard.

In the above-described block configuration, the controller 1003 may perform an overall function of the infrared pen. In the present invention, these are separately constructed and described in order to describe each function separately. Therefore, in the case of actually implementing the product, all of the functions of the infrared pen may be configured to be processed by the controller 1003, and only some of the functions may be configured to be processed by the controller 1003.

11 is a block diagram showing a configuration of an electronic device according to an embodiment of the present invention. The electronic device 1100 may be a portable electronic device and may be a portable terminal, a mobile phone, a mobile pad, a media player, a tablet computer a tablet computer, a handheld computer, or a PDA (Personal Digital Assistant). It may also be any portable electronic device, including devices combining two or more of these devices.

This electronic device 1100 includes a memory 1110, a processor unit 1120, a first wireless communication subsystem 1130, a second wireless communication subsystem 1131, an external port 1160, A system 1150, a speaker 1151, a microphone 1152, an input and output (IO) system 1170, a touch screen 1180 and other input or control devices 1190. A plurality of memories 1110 and external ports 1160 may be used.

The processor unit 1120 may include a memory interface 1121, one or more processors 1122, and a peripheral interface 1123. In some cases, the entire processor unit 1120 may also be referred to as a processor. In the present invention, the processor unit 1120 analyzes the received position coordinates to generate information about the movement trajectory of the infrared pen.

The processor 1122 executes various software programs to perform various functions for the electronic device 1100, and also performs processing and control for voice communication and data communication. In addition to these conventional functions, the processor 1122 also executes a specific software module (instruction set) stored in the memory 1110 to perform various specific functions corresponding to the module. That is, the processor 1122 performs the methods of the embodiments of the present invention in conjunction with the software modules stored in the memory 1110.

Processor 1122 may include one or more data processors, an image processor, or a codec (CODEC). The data processor, image processor, or codec may be configured separately. Also, it may be composed of a plurality of processors performing different functions. The peripheral device interface 1123 connects the input / output subsystem 1170 and the various peripheral devices of the electronic device 1100 to the processor 1122 and the memory 1110 (via the memory interface).

The various components of the electronic device 1100 may be coupled by one or more communication buses (reference numeral not shown) or stream lines (reference numeral not shown).

The external port 1160 is used to connect a portable electronic device (not shown) directly to another electronic device or indirectly to another electronic device via a network (e.g., Internet, intranet, wireless LAN, etc.). The external port 1160 refers to, for example, but not limited to, a universal serial bus (USB) port or a FIREWIRE port.

The motion sensor 1191 and the first optical sensor 1192 may be coupled to the peripheral device interface 1123 to enable various functions. For example, a motion sensor 1191 and a light sensor 1192 may be coupled to the peripheral device interface 1123 to enable movement sensing of the electronic device and light sensing from the outside, respectively. In addition, other sensors, such as a position measurement system, a temperature sensor, or a biosensor, may be connected to the peripheral device interface 1123 to perform related functions.

The camera subsystem 1193 may perform camera functions such as photographing and recording video clips.

The optical sensor 1192 may be a charged coupled device (CCD) or a complementary metal-oxide semiconductor (CMOS) device.

Communication functions are performed through one or more wireless communication subsystems 1130, 1131. The wireless communication subsystems 1130 and 1131 may include a radio frequency receiver and a transceiver and / or an optical (e.g., infrared) receiver and a transceiver. The first communication subsystem 1130 and the second communication subsystem 1131 can be distinguished according to the communication network with which the electronic device 1100 communicates. For example, the communication network may include, but is not limited to, a Global System for Mobile Communication (GSM) network, an Enhanced Data GSM Environment (EDGE) network, a Code Division Multiple Access (CDMA) network, a W- A communication subsystem designed to operate over a plurality of access networks, a long term evolution (LTE) network, an orthogonal frequency division multiple access (OFDMA) network, a wireless fidelity (Wi-Fi) network, a WiMax network, .

An audio subsystem 1150 is coupled to the speaker 1151 and microphone 1152 and may be responsible for input and output of audio streams such as voice recognition, voice reproduction, digital recording and telephone functions. That is, the audio subsystem 1150 communicates with the user via a speaker 1151 and a microphone 1152. Audio subsystem 1150 receives the data stream through peripheral interface 1123 of processor unit 1120 and converts the received data stream into an electrical stream. The converted electric signal is transmitted to the speaker 1151. The speaker 1151 converts the electric stream into a sound wave that can be heard by a person and outputs the sound wave. The microphone 1152 converts sound waves delivered from a person or other sound source into an electrical stream. Audio subsystem 1150 receives the converted electrical stream from microphone 1152. The audio subsystem 1150 converts the received electrical stream to an audio data stream and transmits the converted audio data stream to the peripheral interface 1123. The audio subsystem 1150 may include an attachable and detachable ear phone, a head phone, or a head set.

The input / output (I / O) subsystem 1170 may include a touch screen controller 1171 and / or other input controller 1172. The touch screen controller 1171 may be coupled to the touch screen 1180. Touch screen 1180 and touch screen controller 9111 include, but are not limited to, capacitive, resistive, infrared and surface acoustic wave technologies as well as other to determine one or more contact points with touch screen 1180. Any multi-touch sensing technique, including proximity sensor arrangements or other elements, can be used to detect contact and movement or disruption thereof. The guitar input controller 1172 can be coupled to the guitar input / control devices 1190. Such as a pointer device such as one or more buttons, a rocker switch, a thumb-wheel, a dial, a stick, and / or a stylus in the other input /

The touch screen 1180 provides an input / output interface between the electronic device 1100 and a user. That is, the touch screen 1180 transmits the touch input of the user to the electronic device 1100. [ And is an intermediary for displaying the output from the electronic device 1100 to the user. That is, the touch screen 1180 shows a visual output to the user. This visual output appears in the form of text, graphics, video, and combinations thereof.

The touch screen 1180 can use various displays. For example, but not limited to, liquid crystal display (LCD), light emitting diode (LED), light emitting polymer display (LPD), organic light emitting diode (OLED), active matrix organic light emitting diode (AMOLED), or FLED (Flexible LED) can be used.

The memory 1110 may be coupled to the memory interface 1121. The memory 1110 may include high speed random access memory and / or nonvolatile memory such as one or more magnetic disk storage devices, one or more optical storage devices and / or flash memory (e.g., NAND, NOR).

The memory 1110 stores software. The software components may include an operating system module 1111, a communication module 1112, a graphics module 1113, a user interface module 1114 and an MPEG module 1115, a camera module 1116, (1117), and the like. A module, which is a software component, can also be expressed as a set of instructions, so a module is sometimes referred to as an instruction set. Modules can also be expressed as programs. In the present invention, the memory 1110 automatically stores a list or device list of at least one access point connected more than a set number of times within a set time, and stores the access point's GPS location value together with the list of stored access points. In addition, the memory 1110 stores a list of access points and a device list in an area not applicable to a factory reset, and stores a GPS position value of the access point in an area not applied to a factory reset.

Operating system software 1111 (e.g., a built-in operating system such as WINDOWS, LINUX, Darwin, RTXC, UNIX, OS X, or VxWorks) is a variety of software that controls general system operation. Contains components. Control of such general system operations refers to, for example, memory management and control, storage hardware (device) control and management, power control and management, and the like. These operating system software also facilitates communication between various hardware (devices) and software components (modules).

The communication module 1112 may enable communication with other electronic devices, such as a computer, a server, and / or a portable terminal, via the wireless communication subsystem 1130, 1131 or the external port 1160. The communication module 1112 in the present invention receives the information about the position coordinates of the infrared pen from the dongle, and transmits the information about the movement trace to the projector so that the movement trace of the infrared pen can be displayed on the copyboard. In addition, the communication module 1112 transmits the information about the generated movement trajectory to the projector.

The graphics module 1113 includes various software components for providing and displaying graphics on the touch screen 1180. The term graphics refers to text, a web page, an icon, a digital image, video, animation, and the like. In the present invention, the touch screen 980 displays a message concerning whether the smart rotation function is set or not, and selects an arbitrary area included in the message.

The user interface module 1114 includes various software components related to the user interface. How the state of the user interface changes, and under what conditions the change of the user interface state occurs.

The CODEC module 1115 may include software components related to encoding and decoding video files. The codec module may include a video stream module, such as an MPEG module and / or an H204 module. In addition, the codec module may include a codec module for various audio files such as AAA, AMR, and WMA. In addition, codec module 1115 includes a set of instructions corresponding to an embodiment of the present invention.

Camera module 1116 includes camera-related software components that enable camera-related processes and functions.

The application module 1117 may include a browser, an email, an instant message, a word processing, a keyboard emulation, an address book, a touch list, , Widgets, digital rights management (DRM), voice recognition, voice duplication, position determining functions, location based services, and the like.

It should also be noted that the various functions of the electronic device 1100 described above, and as discussed below, in accordance with the present invention include one or more stream processing and / or application specific integrated circuits (ASICs) Hardware and / or software and / or a combination thereof.

Obviously, there are many different ways within the scope of the claims that can modify these embodiments. In other words, there may be many other ways in which the invention may be practiced without departing from the scope of the following claims.

101: electronic device 102: projector
103: electronic blackboard 104: dongle
105: infrared camera 106: infrared pen
201: infrared pen 202: electronic blackboard
203: infrared point 204: clock
205: infrared point 301: infrared point
302: infrared point 303: infrared point
304: modified infrared point 401: infrared point
402: infrared point 403: infrared point
404: modified infrared point 501: electronic blackboard
502: movement trajectory 901: communication module
903: control unit 905: input unit
907: storage unit 1001: communication module
1003: control unit 1005: input unit
1007: output unit 1100: electronic device
1110: Memory 1111: Operating system module
1112: Communication module 1113: Graphics module
1114: User interface module 1115: CODEC module
1116: Camera module 1117: Application
1120: Processor unit 1121: Memory interface
1122: Processor 1123: Peripheral Interface
1130: first wireless communication subsystem 1131: second wireless communication subsystem
1150: Audio subsystem 1151: Speaker
1152: microphone 1160: external port
1170: Input / output system 1171: Touch screen controller
1172: Other input controller 1180: Touch screen
1190: Other input / control devices 1191: Motion sensor
1192: optical sensor 1193: camera subsystem

Claims (28)

In the operation method of the dongle,
Recognizing at least two or more infrared ray points displayed on an electronic blackboard; And
And identifying an infrared point of any one of the recognized at least two infrared points is projected from an infrared ray pen.
The method of claim 1,
And transmitting information indicating that the at least two infrared points have been recognized to the infrared pen through near field communication.
3. The method of claim 2,
The information that the at least two infrared points are recognized,
And information on the appearance of at least two infrared points displayed on the copyboard.
The method of claim 1,
Receiving information regarding the appearance of at least two infrared points to be displayed on the copyboard due to the infrared rays projected from the infrared pen onto the copyboard; And
And storing information regarding the appearance of the at least two infrared points received.
The method of claim 1,
Confirming that the infrared point of any one of the recognized at least two infrared points is projected from the infrared pen,
Confirming that an external shape of at least one of the at least two infrared points displayed on the copyboard is deformed and distinguished from an external shape of the other infrared points;
Confirming that the appearance of the modified infrared point coincides with the appearance of the stored infrared point; And
And confirming that the modified one infrared point is projected from the infrared pen.
The method of claim 1,
Analyzing the position coordinates of the infrared point displayed on the copyboard due to the infrared rays projected from the infrared pen onto the copyboard; And
And transmitting information regarding the analyzed position coordinates of the infrared point to the electronic device using short-range communication.
In the operating method of the infrared pen,
Receiving information from the dongle that at least two infrared points have been recognized; And
Adjusting the shape or brightness of an infrared light source to be projected onto the copyboard so as to be distinguished from other infrared points among the at least two infrared points.
The method of claim 7, wherein
And projecting infrared rays onto the copyboard.
The method of claim 7, wherein
The information that the at least two infrared points have been recognized,
Received through the short-range communication from the dongle, characterized in that the information on the appearance of the at least two infrared points displayed on the copyboard.
The method of claim 7, wherein
And receiving the appearance of at least two infrared points to be displayed on the copyboard due to the infrared rays projected onto the copyboard.
The method of claim 7, wherein
Adjusting the shape or brightness of the infrared light source to be projected on the copyboard to be distinguished from other infrared points of the at least two infrared points,
Identifying an appearance of another infrared point among at least two infrared points displayed on the copyboard; And
And adjusting the shape or brightness of an infrared light source to display one of at least two infrared points set on the copyboard so as not to overlap with the appearance of the other infrared points.
A method of operating an electronic device,
Receiving information about the position coordinates of the infrared pen from the dongle; And
And transmitting information about the movement trajectory to a projector so that the movement trajectory of the infrared pen can be displayed on the copyboard.
The method of claim 12,
Information about the position coordinates of the infrared pen,
And receiving information from the dongle through short-range communication and including information about the position coordinates of the infrared point displayed on the copyboard due to the infrared rays projected from the infrared pen to the copyboard.
The method of claim 12,
Transmitting the information on the movement trajectory to the projector so that the movement trajectory of the infrared pen can be displayed on the copyboard,
Analyzing the received position coordinates to generate information on a movement trajectory of the infrared pen; And
And transmitting the information about the generated movement trajectory to the projector.
In the dongle,
A controller for recognizing at least two infrared points displayed on the copyboard and confirming that at least one of the recognized at least two infrared points is projected from an infrared pen; And
Device for storing the information controlled by the control unit.
16. The method of claim 15,
And a communication module for transmitting the information indicating the at least two infrared points to the infrared pen through short range communication.
17. The method of claim 16,
The information that the at least two infrared points are recognized,
Apparatus comprising information on the appearance of the at least two infrared points displayed on the copyboard.
16. The method of claim 15,
And an input unit configured to receive information regarding the appearance of at least two infrared points to be displayed on the electronic blackboard due to the infrared rays to be projected from the infrared pen to the electronic blackboard.
The storage unit, characterized in that for storing information about the appearance of the at least two infrared points received.
16. The method of claim 15,
The controller may determine that an external shape of one of the at least two infrared points displayed on the copyboard is deformed and distinguished from an external point of the other infrared points. Confirm that the contours of the points coincide with each other, and that the modified one infrared point is projected from the infrared pen.
16. The method of claim 15,
The controller analyzes the position coordinates of the infrared point displayed on the copyboard due to the infrared rays projected from the infrared pen onto the copyboard,
And a communication module for transmitting the information regarding the position coordinates of the analyzed infrared point to the electronic device using short-range communication.
In the infrared pen,
A communication module for receiving information from the dongle that at least two infrared points have been recognized; And
And a controller for adjusting the shape or brightness of the infrared light source to be projected onto the copyboard so as to be distinguished from other infrared points among the at least two infrared points.
22. The method of claim 21,
And an output unit for projecting infrared rays onto the copyboard.
22. The method of claim 21,
The information that the at least two infrared points have been recognized,
Received from the dongle via short-range communication, characterized in that the information on the appearance of at least two or more infrared points displayed on the copyboard.
22. The method of claim 21,
And an input unit configured to receive an appearance of at least two infrared points to be displayed on the copyboard due to the infrared rays projected onto the copyboard.
22. The method of claim 21,
The controller checks the appearance of another infrared point among at least two infrared points displayed on the copyboard, and displays one of at least two infrared points set to not overlap with the appearance of the other infrared point on the copyboard. To adjust the shape or brightness of the infrared light source.
In an electronic device,
A communication module for receiving information on the position coordinates of the infrared pen from a dongle and transmitting the information on the movement trace to a projector so that the movement trace of the infrared pen can be displayed on the electronic blackboard; And
A device characterized by a processor unit that controls the overall operation of an electronic device.
The method of claim 26,
Information about the position coordinates of the infrared pen,
And receiving information from the dongle through short-range communication and including information about the position coordinates of the infrared point displayed on the copyboard due to the infrared rays projected from the infrared pen to the copyboard.
The method of claim 26,
The processor unit analyzes the received position coordinates to generate information about a movement trajectory of the infrared pen,
The communication module, characterized in that for transmitting the information about the generated movement trajectory to the projector.
KR1020120087349A 2012-08-09 2012-08-09 Apparatas and method for recognition distinguish infrared ray light soure with around reflected light KR20140020564A (en)

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KR20170101388A (en) * 2016-02-28 2017-09-06 임성현 Parameter setting method for processing infrared light signal dynamically, terminal device and electronic board system based on infrared light thereof
KR20170101387A (en) * 2016-02-28 2017-09-06 임성현 Parameter setting method for processing infrared light signal automatically, apparatus for processing infrared light signal and electronic board system based on infrared light thereof
KR20170101389A (en) * 2016-02-28 2017-09-06 임성현 Filtering method for processing infrared light signal, apparatus for processing infrared light signal and electronic board system thereof
KR20170101390A (en) * 2016-02-28 2017-09-06 임성현 Method for setting angle of view in electronic board system based on infrared light, terminal device and electronic board system based on infrared light thereof
KR102138019B1 (en) 2020-04-01 2020-07-27 건아정보기술 주식회사 Vehicle detector invoked a control technology of electro polarizing filter

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20170101388A (en) * 2016-02-28 2017-09-06 임성현 Parameter setting method for processing infrared light signal dynamically, terminal device and electronic board system based on infrared light thereof
KR20170101387A (en) * 2016-02-28 2017-09-06 임성현 Parameter setting method for processing infrared light signal automatically, apparatus for processing infrared light signal and electronic board system based on infrared light thereof
KR20170101389A (en) * 2016-02-28 2017-09-06 임성현 Filtering method for processing infrared light signal, apparatus for processing infrared light signal and electronic board system thereof
KR20170101390A (en) * 2016-02-28 2017-09-06 임성현 Method for setting angle of view in electronic board system based on infrared light, terminal device and electronic board system based on infrared light thereof
KR102138019B1 (en) 2020-04-01 2020-07-27 건아정보기술 주식회사 Vehicle detector invoked a control technology of electro polarizing filter

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