WO2015108365A1

WO2015108365A1 - Electronic blackboard system and method for controlling same

Info

Publication number: WO2015108365A1
Application number: PCT/KR2015/000468
Authority: WO
Inventors: 이명환
Original assignee: 주식회사 쏠리드에듀
Priority date: 2014-01-17
Filing date: 2015-01-16
Publication date: 2015-07-23

Abstract

An electronic blackboard system according to an embodiment of the invention comprises: an electronic pen which detects pattern information on a recording medium on which a dot pattern is formed; an information processing device which makes a control to store first pattern information on a first recording medium and second pattern information on a second recording medium, compare the detected pattern information received from the electronic pen with the first pattern information and the second pattern information, process signals relating to the first recording medium or the second recording medium according to the compared result, and output the processed result; and an electronic blackboard which outputs the processed result.

Description

Electronic blackboard system and control method thereof

The present invention relates to an electronic blackboard system and a control method thereof.

The electronic pen is a new concept pen that combines analog and digital. When writing on paper using an electronic pen, the written information is transmitted to a computer and can be managed in the form of an image file. Documents written with a normal pen can also be managed in the form of an image file by scanning with a scanner (electronic color splitter) .However, documents written with an electronic pen do not require a scanning process and can be easily managed through a separate program. There is this.

Meanwhile, in the era of smart education, education methods using electronic pens and electronic blackboards are rapidly spreading. When writing on an electronic blackboard using an electronic pen, the writing content may be converted into an image file and managed.

At this time, the free interworking between the electronic pen, the electronic blackboard and the printed education media is required, but there is a problem in that the interworking is not free.

The present invention is to provide an electronic blackboard system and a control method thereof.

An electronic blackboard system according to an embodiment of the present invention stores an electronic pen for detecting pattern information on a recording medium on which a dot pattern is formed, and stores first pattern information on a first recording medium and second pattern information on a second recording medium. The detected pattern information received from the electronic pen is compared with the first pattern information and the second pattern information, and a signal relating to the first recording medium or the second recording medium is processed according to a comparison result, and An information processing apparatus for controlling to output a result, and an electronic blackboard for outputting the processed result.

The first recording medium may be the electronic blackboard, and the second recording medium may be a printed recording medium.

The information processing apparatus includes: a transceiver configured to receive the pattern information detected by the electronic pen, to transmit a signal for controlling the output of the processed result to the electronic blackboard, and a first storage unit to store the first pattern information. And a second storage unit storing the second pattern information, comparing the detected pattern information, the first pattern information, and the second pattern information, wherein the detected pattern information includes the first recording medium and the second pattern information. A pattern comparing unit which determines which of the recording mediums is pattern information detected from the recording medium, a first signal processing unit which processes the pattern information detected by the first recording medium, and processes the pattern information detected by the second recording medium. A second signal processor, and an output controller configured to control the first signal processor and the second signal processor to output the processing result on the copyboard. The.

The second storage unit may further store identification information and content information about at least one second recording medium.

If it is determined that the detected pattern information is pattern information detected from the second recording medium, the pattern comparison unit may identify the second recording medium using the identification information and the detected pattern information.

The output control unit may control to output the processing result according to the content information and the detected pattern information on the identified second recording medium on the copyboard.

The electronic blackboard may include glass, an adhesive layer formed on the glass, and a pattern layer formed on the adhesive layer and printed with a dot pattern.

The control method of the electronic blackboard system according to an embodiment of the present invention comprises the steps of: receiving pattern information on a recording medium on which a dot pattern is formed; Comparing the second pattern information on the image, processing a signal relating to the first recording medium or the second recording medium according to the comparison result, and controlling to output the processed result.

According to the embodiment of the present invention, the electronic pen, the electronic blackboard and the printed educational medium may be freely interlocked. Accordingly, it is easy to switch between the copyboard and the printed educational medium, and a high educational effect can be obtained.

1 is a block diagram showing an electronic blackboard system according to an embodiment of the present invention.

2 is an example of an electronic pen according to an embodiment of the present invention.

3 is an example of an electronic blackboard according to an embodiment of the present invention.

4 is an example of a printed recording medium according to an embodiment of the present invention.

5 to 6 are examples of dot patterns formed on an electronic blackboard or printed recording medium according to one embodiment of the present invention.

7 is a block diagram of an information processing apparatus according to an embodiment of the present invention.

8 is a flowchart illustrating a control method of an electronic blackboard system according to an embodiment of the present invention.

As the invention allows for various changes and numerous embodiments, particular embodiments will be illustrated and described in the drawings. However, this is not intended to limit the present invention to specific embodiments, it should be understood to include all modifications, equivalents, and substitutes included in the spirit and scope of the present invention.

Terms including ordinal numbers, such as second and first, may be used to describe various components, but the components are not limited by the terms. The terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the second component may be referred to as the first component, and similarly, the first component may also be referred to as the second component. The term and / or includes a combination of a plurality of related items or any item of a plurality of related items.

When a component is referred to as being "connected" or "connected" to another component, it may be directly connected to or connected to that other component, but it may be understood that other components may be present in between. Should be. On the other hand, when a component is said to be "directly connected" or "directly connected" to another component, it should be understood that there is no other component in between.

The terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting of the present invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In this application, the terms "comprise" or "have" are intended to indicate that there is a feature, number, step, operation, component, part, or combination thereof described in the specification, and one or more other features. It is to be understood that the present invention does not exclude the possibility of the presence or the addition of numbers, steps, operations, components, components, or a combination thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art. Terms such as those defined in the commonly used dictionaries should be construed as having meanings consistent with the meanings in the context of the related art and shall not be construed in ideal or excessively formal meanings unless expressly defined in this application. Do not.

DETAILED DESCRIPTION Hereinafter, exemplary embodiments will be described in detail with reference to the accompanying drawings, and the same or corresponding components will be given the same reference numerals regardless of the reference numerals, and redundant description thereof will be omitted.

1 is a block diagram illustrating an electronic blackboard system according to an embodiment of the present invention, FIG. 2 is an example of an electronic pen according to an embodiment of the present invention, and FIG. 3 is an electron according to an embodiment of the present invention. 4 is an example of a blackboard, and FIG. 4 is an example of a printed recording medium according to an embodiment of the present invention.

Referring to FIG. 1, the electronic blackboard system 10 includes an electronic pen 100, an information processing apparatus 200, an electronic blackboard 300, a printed recording medium 400, and a projector 500.

The electronic pen 100 detects pattern information on a recording medium on which a dot pattern is formed. In the present specification, the recording medium on which the dot pattern is formed may mean at least one of the copyboard 300 and the printed recording medium 400.

The information processing apparatus 200 stores the pattern information on the copyboard 300 and the pattern information on the printed recording medium 400. The information processing device 200 compares the detected pattern information received from the electronic pen 100 with the pattern information on the pre-stored copyboard 300 and the pattern information on the printed recording medium 400. In addition, the information processing apparatus 200 processes a signal relating to the copyboard 300 or the printed recording medium 400 according to the comparison result, and controls the signal processing result to be output on the copyboard 300. .

The electronic blackboard 300 outputs the result processed by the information processing apparatus 200.

The printed recording medium 400 may include printed matter on which a dot pattern is formed.

The projector 500 projects a signal processed through the information processing device 400 onto the copyboard 300.

Referring to FIG. 2, the electronic pen 100 includes a body 110 and a writing unit 120 that detects pattern information on a recording medium that has a dot pattern formed on one end of the body 110.

Body 110 is a mixed resin of ABS (Acrylonitrite Butadiene Styrene copolymer) and PC (Poly Carbonate), PP (Poly Propylene), PPS (Poly Phenylene Sulfide) synthetic resin, PMMA synthetic resin, PS synthetic resin, glass, It may comprise one of metals and mixtures selected from them.

Body portion 110 may be the same diameter or may be configured in the form of a light-receiving narrow, both ends may be formed with a cover (not shown).

The writing unit 120 may include a pen tip unit 121 capable of recording on the electronic blackboard 300 or a printed recording medium 400, a pressure sensor 123 for generating pen pressure information applied to the pen tip unit 121, and an electronic device. An infrared light source 125 for outputting infrared rays on the blackboard 300 or the printed recording medium 400, an infrared sensor 127 for detecting infrared rays scattered on the copyboard 300 or the printed recording medium 400; And a detection unit 129 for detecting pattern information using the detected infrared rays.

The pen tip unit 121 may be formed in the form of a pen tip protruding outward from one end of the body portion 110. The pen tip unit 121 may be configured to enable writing using, for example, ink stored therein. The pen tip unit 121 may include, for example, a pen tip for writing on the copyboard 300 and a pen tip for writing on the printed recording medium 400, and the pen tips may be changed by a switching means (not shown). Can be switched.

The pressure sensor 123 is adjacent to the pen tip unit 121 and may sense a pressure applied to the pen tip unit 121. When the pressure sensor 123 contacts the pen tip unit 121 and the copyboard 300 or the printed recording medium 400, the pressure sensor 123 calculates a pressure proportional to the force applied to the pen tip unit 121 as a numerical value. Can be generated.

When the pen tip unit 121 is in contact with the copyboard 300 or the printed recording medium 400, or the pen tip unit 121 is close to the copyboard 300 or the printed recording medium 400 by a predetermined distance or less. , Emits infrared light.

The infrared sensor 127 is adjacent to the pen tip unit 121 and detects infrared rays scattered on the copyboard 300 or the printed recording medium 400.

The detection unit 129 detects the dot pattern on the copyboard 300 or the printed recording medium 400 using the infrared rays detected by the infrared sensor 127.

Referring to FIG. 3, the copyboard 300 includes a glass 310, an adhesive layer (not shown) formed on the glass 310, and a pattern layer 320 formed on the adhesive layer and printed with a dot pattern.

The glass 310 may be, for example, tempered glass. The surface of the glass layer 310 may be antireflective. Surface of the glass layer by coating one side of the glass layer 310 with an antireflective film, chemically etching one side of the glass layer 310, sandblasting one side of the glass layer 310, or the like. Can be anti-reflective. Accordingly, the reflection of the image projected on the glass layer 310 can be prevented. In addition, the thickness of the glass layer 310 may be 0.1mm to 3mm, preferably 0.2mm to 2mm, more preferably 0.3mm to 1mm. When the thickness of the glass layer 310 satisfies this numerical range, the dual phase may be minimized and the image quality may be improved. In addition, when the thickness of the glass layer 310 satisfies this numerical range, the electronic pen 100 may increase pattern recognition performance of recognizing a pattern printed on the pattern layer 320.

The pattern layer 320 may be, for example, sheet paper printed with a dot pattern. Here, the sheet paper may include a material which is easy to print and is not affected by temperature and humidity. For example, the sheet paper may be a sheet of synthetic paper or polyethylene terephthalate (PET). The sheet may have a thickness of 10 μm to 200 μm. If the thickness of the sheet paper satisfies this numerical range, it may be easy for printing and bonding.

In addition, the adhesive layer may include a UV (ultraviolet) curing adhesive. For example, the adhesive may comprise an epoxy adhesive.

Referring to FIG. 4, the printed recording medium 400 includes a dot pattern printed on paper. The printed recording medium 400 may be, for example, a textbook or a learning paper printed with a dot pattern.

A dot pattern formed on an electronic blackboard or a printed recording medium according to an embodiment of the present invention will be described in detail with reference to FIGS. 5 to 6.

Referring to FIG. 5, the dot pattern 500 includes a virtual grid line 520 and a plurality of marks 510, and each mark 510 is predetermined based on an intersection point of the virtual grid line 520. It can be formed at intervals. Each mark 510 may provide pattern information based on a pattern value determined according to a position formed around an intersection point of the virtual grid line 520.

The mark 510 may be formed using, for example, an infrared absorbing ink including one of a phthalocyanine compound, a naphthalocyanine compound, an aluminum compound, and a mixture selected from them. Accordingly, the infrared sensor 127 may detect infrared rays scattered at the portion where the mark 510 is not formed, and the detection unit 129 may use the same to vertically and horizontally on the grid line 520 having a size of 6 * 6. When the 36 marks 510 are recognized 6 by 6, pattern information according to the value of each mark 510 may be calculated.

The marks 510 are formed at predetermined intervals around the intersections of the virtual grid lines 520 to have respective mark 510 values, and the mark 510 values may be composed of a combination of at least two or more different numbers. Can be.

The mark 510 may have various shapes such as a circle, an oval, a polygon, and a straight line.

Referring to FIG. 6, the mark 510 may exist at four positions according to a relationship with an intersection point of the virtual grid line 520. When the mark 510 is located on the right side of the intersection as a, the value of the mark 510 is represented by "1", and when the mark 510 is located on the top of the intersection as b, the value of the mark 510 is represented by "2", as shown in c. In the case where it is located on the left side of the intersection, the value of the mark 510 may be represented by "3", and in the case where it is located below the intersection as shown in d, the value of the mark 510 may be represented by "4". In this way, the pattern information can be detected according to the position of the mark 510 around the intersection of the virtual grid lines 520.

In addition, the mark 510 may be formed in a diagonal direction instead of on the virtual grid line 520, and a plurality of marks 510 may be formed at the intersection of one virtual grid line 520 to provide position information. have. In this case, each mark 510 value may be represented by arbitrary coordinates in a manner that is separated into x coordinates and y coordinates, and the pattern information may be provided from the mark 510 values represented by coordinates.

The virtual grid lines 520 may be formed horizontally and vertically at regular intervals. The distance between the grid lines 520 may be formed to be 250㎛ to 300㎛, the mark 510 is formed at a point of 1/4 to 1/8 distance from the intersection of the virtual grid line 520 Can be. Alternatively, the mark 510 may be formed by connecting two or more marks 510 around the intersection point of the virtual grid line 520.

According to an embodiment of the present invention, the pattern information recognized by the electronic pen 100 is transmitted to the information processing apparatus 200, and the information processing apparatus 200 uses the pattern information recognized by the electronic pen 100. Identify the record carrier and determine the absolute position on the record carrier.

Referring to FIG. 7, the information processing apparatus 200 may include a transceiver 210, an electronic blackboard information storage unit 220, a printed matter information storage unit 230, a pattern comparator 240, and an electronic blackboard signal processor 250. , A printed signal signal processor 260 and an output controller 270.

The transceiver 210 receives the pattern information detected from the electronic pen 100. To this end, the electronic pen 100 and the transceiver 210 may be connected by wireless or wired. For example, the electronic pen 100 and the transceiver 210 may communicate using a communication protocol such as Bluetooth, short-range wireless LAN, and the like. In addition, the transceiver 210 may transmit a signal for controlling to output the result of processing the signal in the information processing apparatus 200 on the copyboard 300. The transceiver 210 may, for example, transmit a signal to the projector 500.

The copyboard information storage unit 220 stores pattern information about a dot pattern formed on the copyboard 300. Here, the pattern information about the dot pattern formed on the copyboard 300 may include identification information for identifying the copyboard 300 based on at least some dot patterns formed on the copyboard 300. . For example, the range of the dot pattern formed in the copyboard 300 may be matched and stored according to the identification information and the identification information of the copyboard 300.

The printed matter information storage unit 230 stores pattern information about a dot pattern formed on the printed recording medium 400. In this case, the printed matter information storage unit 230 may store the identification information, the range of the dot pattern formed on the printed recording medium 400, and the content information for each printed recording medium 400.

The pattern comparison unit 240 compares the pattern information detected by the electronic pen 100, the pattern information stored in the electronic blackboard information storage unit 220, and the pattern information stored in the print information storage unit 230, and detects the detected pattern information. Determining whether the recording information of the electronic blackboard 300 and the printed recording medium 400 is detected from the recording medium.

The dot pattern formed on the copyboard 300 and the dot pattern formed on the printed recording medium 400 may be distinguished according to, for example, spacing of marks or grid lines, mark sizes, and the like. For example, the copyboard information storage unit 220 stores information about the marks or grid lines of the dot pattern formed on the copyboard 300, the size of the marks, and the like, and the printout information storage unit 230 includes a printed matter ( Information on marks or grid lines of the dot pattern formed on the line 400, spacing of the marks, and the like may be stored. In addition, the pattern comparison unit 240 is a mark stored in the electronic blackboard information storage unit 220 and the printout information storage unit 230, respectively, such as a mark or grid line spacing, mark size, etc. for the pattern detected by the electronic pen 100. Alternatively, the recording medium can be identified by comparing the intervals of the grid lines, the size of the marks, and the like.

At this time, if it is determined that the detected pattern information is the pattern information detected from the printed recording medium 400, the pattern comparison unit 240 prints the printed recording medium using the identification information stored in the print information storage unit 230 ( 400 may be identified.

The copyboard signal processor 250 processes the pattern information detected from the copyboard 300. That is, the copyboard signal processor 250 may extract absolute coordinates on the copyboard 300 using the pattern information detected from the copyboard 300.

The printed signal signal processor 260 processes the pattern information detected from the printed recording medium 400. That is, the printed matter signal processor 260 may extract absolute coordinates on the printed recording medium 400 using the pattern information detected from the printed recording medium 400.

The output control unit 270 controls the electronic blackboard 300 to output the result of the processing through the electronic blackboard signal processor 250 and the printed signal signal processor 260. For example, the output control unit 270 outputs writing information on the copyboard 300, touch information on a computer screen displayed on the copyboard 300, or writes on the printed recording medium 400, touch information. And so on.

Referring to FIG. 8, the electronic pen 100 detects a dot pattern on the copyboard 300 (S800). For example, the electronic pen 100 may contact the electronic blackboard 300 to write on the electronic blackboard 300. As another example, the electronic pen 100 may contact the electronic blackboard 300 to control a computer screen displayed on the electronic blackboard 300. In this case, the electronic pen 100 may serve as a mouse or a touch pad.

The electronic pen 100 transmits the pattern information on the detected dot pattern to the information processing apparatus 200 (S802). To this end, the electronic pen 100 may communicate with the information processing apparatus 200 by wireless or wired.

The information processing apparatus 200 recognizes the surface of the electronic blackboard using the pattern information received from the electronic pen 100 (S804). In addition, the information processing apparatus 200 may store in advance the pattern information on the copyboard 300 and the pattern information on the printed recording medium 400, and compare the pattern information received from the electronic pen 100 with the previously stored pattern information. Can be. The pattern information on the copyboard 300 and the pattern information on the printed recording medium 400 may be classified according to, for example, the interval or size of the mark or the virtual grid line. When the pattern information received from the electronic pen 100 corresponds to the pattern information on the electronic blackboard 300 stored in advance, the information processing apparatus 200 recognizes that the electronic pen 100 is operating on the electronic blackboard 300. can do.

The information processing apparatus 200 processes the pattern information received from the electronic pen 100 (S806), transmits a signal for controlling the processed result to be output on the electronic blackboard 300 (S810), and the electronic blackboard ( 300 displays it (S812). For example, when the electronic pen 100 writes on the electronic blackboard 300, the pattern information detected as the electronic pen 100 moves is changed. The information processing apparatus 200 extracts coordinate information on the copyboard 300 from the pattern information continuously input from the electronic pen 100, and converts the information into writing information so that the writing information is displayed on the copyboard 300. can do. As another example, when the electronic pen 100 controls the computer screen displayed on the copyboard 300, the pattern information detected as the electronic pen 100 moves is changed. The information processing apparatus 200 extracts coordinate information on the electronic blackboard 300 from pattern information continuously input from the electronic pen 100, and converts the coordinate information on the electronic blackboard 300 into click information or touch information on a computer screen to control the signal of the information processing apparatus. And a screen of the information processing apparatus may be displayed on the electronic blackboard 300.

Meanwhile, the electronic pen 100 may detect a dot pattern on the printed recording medium 400 (S814). For example, the teacher may write the writing on the copyboard 300 and then contact the electronic pen 100 with the textbook, that is, the printed recording medium 400, for further explanation using the textbook.

The electronic pen 100 transmits pattern information on the detected dot pattern to the information processing device 200 (S816). To this end, the electronic pen 100 may communicate with the information processing apparatus 200 by wireless or wired.

The information processing apparatus 200 recognizes the surface of the electronic blackboard using the pattern information received from the electronic pen 100 (S818). In addition, the information processing apparatus 200 may store in advance the pattern information on the copyboard 300 and the pattern information on the printed recording medium 400, and compare the pattern information received from the electronic pen 100 with the previously stored pattern information. Can be. The pattern information on the copyboard 300 and the pattern information on the printed recording medium 400 may be classified according to, for example, the interval or size of the mark or the virtual grid line. When the pattern information received from the electronic pen 100 corresponds to the pattern information on the printed recording medium 400 stored in advance, the information processing apparatus 200 operates on the recording medium 400 on which the electronic pen 100 is printed. You can recognize that you are doing.

The information processing apparatus 200 processes the pattern information received from the electronic pen 100 (S820), transmits a signal for controlling the processed result to be output on the electronic blackboard 300 (S822), and the electronic blackboard ( 300 displays it (S812). For example, when the electronic pen 100 is in contact with one surface of the textbook, the information processing apparatus 200 is located on the recording medium 400 on which the electronic pen 100 is printed from the pattern information input from the electronic pen 100. Recognizing that the contact is touched, the coordinate information on the textbook can be extracted, and identification information and page information of the textbook can be determined therefrom. Then, the corresponding page may be displayed on the electronic blackboard 300. As another example, when the electronic pen 100 touches a specific area of the textbook, the information processing device 200 may perform a function previously set for the corresponding area. For example, when the specific area is the writing area, the writing information may be extracted using the pattern information detected according to the movement of the electronic pen 100, and the writing content may be output on the electronic blackboard 300. When the specific area is an audio output area, the prestored audio information may be output by using the pattern information detected according to the movement of the electronic pen 100, and the corresponding audio information may be output.

As such, according to the embodiment of the present invention, the information processing apparatus 200 uses the pattern information received from the electronic pen 100 to determine whether the electronic pen 100 is being used on the electronic blackboard 300 or printed records. It can be seen that it is being used on the medium 400. Accordingly, if the lecturer uses the contents of the printed recording medium while writing on the copyboard or vice versa by using the contents of the printed recording medium, the lecturer moves to the copyboard while taking notes. Without this, the information processing apparatus 200 may quickly recognize this, and may automatically switch the displayed screen. Accordingly, the educational effect can be enhanced by freeing the interlocking between the electronic pen, the electronic blackboard, and the printed recording medium.

The term '~ part' used in the present embodiment refers to software or a hardware component such as a field-programmable gate array (FPGA) or an ASIC, and '~ part' performs certain roles. However, '~' is not meant to be limited to software or hardware. '~ Portion' may be configured to be in an addressable storage medium or may be configured to play one or more processors. Thus, as an example, '~' means components such as software components, object-oriented software components, class components, and task components, and processes, functions, properties, procedures, and the like. Subroutines, segments of program code, drivers, firmware, microcode, circuits, data, databases, data structures, tables, arrays, and variables. The functionality provided within the components and the 'parts' may be combined into a smaller number of components and the 'parts' or further separated into additional components and the 'parts'. In addition, the components and '~' may be implemented to play one or more CPUs in the device or secure multimedia card.

Although described above with reference to a preferred embodiment of the present invention, those skilled in the art will be variously modified and changed within the scope of the invention without departing from the spirit and scope of the invention described in the claims below I can understand that you can.

Claims

An electronic pen that detects pattern information on a recording medium having a dot pattern formed thereon;

Storing first pattern information on a first recording medium and second pattern information on a second recording medium, and comparing the detected pattern information received from the electronic pen with the first pattern information and the second pattern information, and comparing An information processing apparatus which processes a signal relating to the first recording medium or the second recording medium according to a result, and controls to output the processed result; and

Electronic board to output the result of the processing

Electronic blackboard system comprising a.
The method of claim 1,

And the first recording medium is the electronic blackboard, and the second recording medium is a printed recording medium.
The method of claim 2,

The information processing device,

Receiving pattern information received from the electronic pen, Transmitting and receiving unit for transmitting a signal for controlling to output the processing result to the electronic blackboard,

A first storage unit which stores the first pattern information;

A second storage unit which stores the second pattern information;

Compare the detected pattern information, the first pattern information and the second pattern information, and determine whether the detected pattern information is pattern information detected from one of the first recording medium and the second recording medium. Pattern comparison unit

A first signal processor for processing pattern information detected from the first recording medium;

A second signal processor for processing pattern information detected from the second recording medium, and

An output control unit which controls to output the result of the processing through the first signal processing unit and the second signal processing unit on the electronic blackboard;

Electronic blackboard system comprising a.
The method of claim 3,

And the second storage unit further stores identification information and content information about at least one second recording medium.
The method of claim 4, wherein

And if the detected pattern information is determined to be pattern information detected from the second recording medium, the pattern comparison unit identifies the second recording medium using the identification information and the detected pattern information.
The method of claim 5,

And the output control unit controls to output the processing result according to the detected content information and the content information on the identified second recording medium on the copyboard.
The method of claim 1,

The electronic blackboard system comprises a glass, an adhesive layer formed on the glass, and a pattern layer formed on the adhesive layer, the dot pattern is printed.
Receiving pattern information on a recording medium having a dot pattern formed thereon;

Comparing the received pattern information with pre-stored first pattern information on the first recording medium and second pattern information on the second recording medium;

Processing a signal relating to the first recording medium or the second recording medium according to a comparison result; and

Controlling the output of processing results

Control method of the electronic blackboard system comprising a.
The method of claim 8,

And said first recording medium is an electronic blackboard, and said second recording medium is a printed recording medium.
The method of claim 9,

And the result of the processing is output on the copyboard system.