KR101594591B1 - Electronic board and electronic board system comprising the same - Google Patents

Abstract

According to an embodiment of the present invention, an electronic bulletin board system comprises a substrate, a sheet, a glass layer, an electronic pen, and an information processing device. The sheet is formed on the substrate and a pattern is printed thereon to determine location information. The glass layer is formed on the sheet. A size of the substrate is bigger than a size of the glass layer. The electronic pen senses the pattern and extracts the location information on the electronic bulletin board from the sensed pattern. The information processing device receives the location information from the electronic pen and displays a processing result of the received location information on the electronic bulletin board.

Description

ELECTRONIC BOARD AND ELECTRONIC BOARD SYSTEM COMPRISING THE SAME [0002]

The present invention relates to an electronic blackboard and an electronic board system including the same.

In the age of smart education, education methods using electronic pen and electronic board are spreading rapidly. The electronic pen senses the pattern information on the electronic whiteboard on which the pattern is formed, and extracts the position information from the sensed pattern information. The electronic pen transmits the extracted position information to the information processing apparatus. The information processing apparatus processes the position information received from the electronic pen, and controls the output of the processed result on the electronic whiteboard through the projector.

At this time, if the distance between the projector and the copyboard is within a predetermined distance, a double phase or a shadow phenomenon may occur. Thinning the thickness of the copyboard can improve the quality of the image, but it is weak against external impact, so that the durability of the copyboard can be lowered.

SUMMARY OF THE INVENTION It is an object of the present invention to provide an electronic blackboard and an electronic blackboard system including the same.

According to an embodiment of the present invention, an electronic whiteboard includes a substrate, a sheet on which a pattern for identifying position information is printed, and a glass layer formed on the sheet, Is larger than the size of the glass layer.

At least one of the width and the height of the substrate may be 1.01 to 1.2 times of at least one of the width and the height of the glass layer.

And a frame including a first region formed on an edge of the substrate.

The frame may further include a second region surrounding a side of the substrate.

The first region may be spaced from the side of the glass layer by a distance of 0.1 mm to 1 mm.

The frame may comprise an elastic or plastic material.

The thickness of the glass layer may be 0.1 mm to 3 mm.

According to an embodiment of the present invention, an electronic whiteboard system includes a substrate, a sheet on which a pattern for identifying position information is printed, and a glass layer formed on the sheet, An electronic pen for sensing the pattern and extracting positional information on the electronic whiteboard from the sensed pattern, and an electronic pen for receiving the positional information from the electronic pen, And outputting the processed result to the electronic whiteboard.

According to one embodiment of the present invention, an electronic blackboard having good image quality and excellent durability can be obtained. In particular, the function of protecting the impact from the side surface of the copyboard is excellent.

1 is a block diagram illustrating a copyboard 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 a top view of the copyboard according to an embodiment of the present invention.
4 is a block diagram of an information processing apparatus according to an embodiment of the present invention.
5 to 6 are views for explaining a dot pattern formed on the copyboard according to an embodiment of the present invention.
FIG. 7 is a cross-sectional view of the copyboard according to an embodiment of the present invention, and FIG. 8 is a top view of the copyboard according to an embodiment of the present invention.
9 is a sectional view of the copyboard according to another embodiment of the present invention.
10 is a top view of the copyboard according to another embodiment of the present invention.
11 is a sectional view of the copyboard according to another embodiment of the present invention.
12 is a sectional view of the copyboard according to another embodiment of the present invention.

The present invention is capable of various modifications and various embodiments, and specific embodiments are illustrated and described in the drawings. It should be understood, however, that the invention is not intended to be limited to the particular embodiments, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

The terms including ordinal, such as second, first, etc., may be used to describe various elements, but the elements are not limited to these 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 a first component, and similarly, the first component may also be referred to as a second component. And / or < / RTI > includes any combination of a plurality of related listed items or any of a plurality of related listed items.

It is to be understood that when an element is referred to as being "connected" or "connected" to another element, it may be directly connected or connected to the other element, . On the other hand, when an element is referred to as being "directly connected" or "directly connected" to another element, it should be understood that there are no other elements in between.

The terminology used in this application is used only to describe a specific embodiment and is not intended to limit the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In the present application, the terms "comprises" or "having" and the like are used to specify that there is a feature, a number, a step, an operation, an element, a component or a combination thereof described in the specification, But do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations 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 to which this invention belongs. Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the contextual meaning of the related art and are to be interpreted as either ideal or overly formal in the sense of the present application Do not.

Hereinafter, embodiments will be described in detail with reference to the accompanying drawings, wherein like or corresponding elements are denoted by the same reference numerals, and redundant description thereof will be omitted.

2 is an example of an electronic pen according to an embodiment of the present invention, and Fig. 3 is a schematic view of an electronic pen according to an embodiment of the present invention. Fig. 4 is a block diagram of an information processing apparatus according to an embodiment of the present invention.

1, an electronic copyboard system 10 includes an electronic pen 100, an information processing apparatus 200, a copyboard 300, and a projector 400. [

The electronic pen 100 senses the pattern information on the electronic whiteboard 300 on which the pattern is formed, and extracts the position information from the sensed pattern information. Here, the pattern is positioning means on the copyboard 300, and may be variously formed, for example, in a point shape, a straight line shape, a diagonal shape, a curved shape, a ring shape, or the like. For convenience of description, the dot pattern will be described in the present specification by way of example, but the present invention is not limited thereto.

The information processing apparatus 200 stores position information received from the electronic pen 100. [ Then, the information processing apparatus 200 processes the stored position information and controls to output the processed result on the electronic whiteboard 300.

The electronic whiteboard 300 outputs the result of processing in the information processing apparatus 200. [

The projector 400 projects the signal processed through the information processing apparatus 200 to the electronic whiteboard 300. For example, when a computer screen is displayed on the electronic whiteboard 300 and the electronic pen 100 detects a predetermined area of the displayed computer screen, the electronic pen 100 extracts the detected location information of the predetermined area To the information processing apparatus 200. Then, the information processing apparatus 200 processes the area corresponding to the position information received from the electronic pen 100 as being clicked, and controls to output the computer screen corresponding to the click on the electronic whiteboard 300 .

2, the electronic pen 100 includes a body portion 110 and a writing portion 120 provided at one end of the body portion 110 and sensing pattern information on a recording medium on which a dot pattern is formed.

The body portion 110 may be formed of a synthetic resin such as a mixed resin of ABS (Acrylonitrile Butadiene Styrene Copolymer) and PC (Poly Carbonate), PP (Polypropylene), PPS (Poly Phenylene Sulfide), PMMA synthetic resin, PS synthetic resin, Metals, and mixtures thereof.

The body portion 110 may have the same diameter or a shape with a lower light intensity, and a lid (not shown) may be formed at both ends.

The writing unit 120 includes a pen tip unit 121 that can be recorded on the copyboard 300, a pressure sensor 123 that generates pressure information to be applied to the pen tip unit 121, An infrared ray light source 125 for outputting infrared rays, an infrared ray sensor 127 for detecting infrared rays scattered on the copyboard 300, and a detection unit 129 for detecting pattern information and position information using the detected infrared rays.

The pen tip unit 121 may be formed as a pen tip protruding outward from one end of the body 110. The pen tip unit 121 may be configured to be capable of handwriting using, for example, ink stored therein.

The pressure sensor 123 is adjacent to the pen tip unit 121 and can sense the pressure applied to the pen tip unit 121. [ The pressure sensing sensor 123 can generate pressure information by numerically calculating the pressure proportional to the force applied to the pen tip unit 121 when the pen tip unit 121 and the copyboard 300 contact each other.

The infrared light source 125 emits infrared rays when the pen tip unit 121 contacts the copyboard 300 or is located at a distance not more than a predetermined distance from the copyboard 300. [

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

The detection unit 129 detects a dot pattern on the copyboard 300 by using the infrared ray detected from the infrared sensor 127.

Although not shown, the electronic pen 100 further includes a communication unit. The communication unit transmits position information corresponding to the detected dot pattern or dot pattern detected by the writing unit 120 to the information processing apparatus 200. The communication unit can communicate using a communication protocol such as Bluetooth or a local area wireless LAN.

Referring to FIG. 3, a pattern P for determining position information may be printed on the copyboard 300. The details of the electronic whiteboard 300 will be described later.

4, the information processing apparatus 200 includes a transmitting / receiving unit 210, a location information storage unit 220, a location information processing unit 230, and an output control unit 240.

The transceiver 210 receives position information extracted from the electronic pen 100. For this purpose, the electronic pen 100 and the transceiver 210 may be connected wirelessly or by wire. For example, the electronic pen 100 and the transceiver 210 can communicate using a communication protocol such as Bluetooth or a local area wireless LAN. The transmission / reception unit 210 can transmit a signal for controlling the information processing apparatus 200 to output a result of processing the signal on the electronic whiteboard 300. The transmission / reception unit 210 can transmit a signal to the projector 400, for example.

The position information storage unit 220 stores position information on the copyboard 300. For example, the location information storage unit 220 may store the identification information of the copyboard and the corresponding location information.

The position information processing unit 230 performs signal processing using the position information received from the electronic pen 100. [ For example, the area corresponding to the position information received from the electronic pen 100 can be processed as being clicked on the computer screen. Alternatively, it can be processed as being written along the area corresponding to the positional information received from the electronic pen 100.

The output control unit 240 controls the output of the signal processing result of the position information processing unit 230 on the electronic whiteboard 300. For example, the output control unit 240 may control to output a computer screen corresponding to a click on the electronic whiteboard 300, or to output the written content on the electronic whiteboard 300.

The dot pattern formed on the copyboard according to an embodiment of the present invention will be described in detail with reference to FIGS.

5, the dot pattern 500 includes a virtual grid line 520 and a plurality of marks 510, and each of the marks 510 includes a predetermined grid line 520, Can be formed at intervals. Each of the marks 510 may provide pattern information by a pattern value determined according to a position formed around an intersection point of the imaginary grid line 520.

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

The marks 510 are formed at predetermined intervals around the intersection of the imaginary grid lines 520 and have respective values of the marks 510 and the values of the marks 510 are composed of combinations of at least two or more different numbers .

The shape of the mark 510 may have various shapes such as a circle, an ellipse, a polygon, and a straight line.

Referring to FIG. 6, the mark 510 may exist at four positions according to the relationship with the intersection of the virtual grid line 520. When the mark 510 is located on the right side of the intersection as shown by a, the value of the mark 510 is represented by "1 "; when the mark 510 is located at the upper end of the intersection as shown by b, The value of the mark 510 may be represented by "3 " when positioned at the left side of the intersection, and the value of the mark 510 may be represented by" 4 " As described above, the pattern information can be detected according to the position of the mark 510 centered on the intersection of the imaginary grid line 520.

The mark 510 may be formed not only on the imaginary grid line 520 but also in a diagonal direction and a plurality of marks 510 may be formed at the intersection of one virtual grid line 520 to provide positional information have. In this case, the value of each mark 510 may be expressed in arbitrary coordinates in such a manner that it is divided into an x coordinate and a y coordinate, and the pattern information may be provided from the value of the mark 510 expressed in coordinates.

The imaginary grid lines 520 may be formed laterally and vertically at regular intervals. The distance between the grating lines 520 may be 250 탆 to 300 탆 and the marks 510 may be formed at a distance of 1/4 to 1/8 of the center of the imaginary grid line 520 . Or the mark 510 may be formed by associating two or more marks 510 about the intersection of the virtual grid line 520. [

7 is a cross-sectional view of the copyboard according to an embodiment of the present invention.

7, the copyboard 300 includes a substrate 310, a sheet 310 formed on the substrate 310, a sheet 320 on which a pattern for identifying positional information is printed, and a sheet 320 formed on the sheet 320 And a glass layer 330.

On the sheet of paper 320, a pattern P for identifying position information can be printed. That is, the pattern printed on the sheet may be the mark 510 described in FIGS. Accordingly, the pattern may be printed using an infrared absorbing ink, and the infrared absorbing ink may include one of a phthalocyanine compound, a naphthalocyanine compound, an aminium compound, and a mixture thereof.

Here, the sheet paper 320 may include a material that is easy to print and is not affected by temperature and humidity. For example, the sheet may be a synthetic paper or a sheet of PET (polyethylene terephthalate). The thickness of the sheet paper 320 may be 10 [mu] m to 200 [mu] m. When the thickness of the sheet satisfies these numerical ranges, printing and joining can be facilitated.

On the other hand, the glass layer 330 is made of tempered glass, and the surface of the glass layer 330 can be subjected to non-reflecting treatment. The thickness of the glass layer 330 may be 0.1 mm to 3 mm, preferably 0.2 mm to 2 mm, more preferably 0.3 mm to 1 mm. When the thickness of the glass layer 330 satisfies this numerical range, the double phase can be minimized and the quality of the image can be improved. Further, when the thickness of the glass layer 330 satisfies this numerical value range, the pattern recognition performance in which the electronic pen 100 recognizes the pattern printed on the sheet paper 320 can be enhanced. When the thickness of the glass layer 330 is more than 3 mm, there is a problem that the quality of the image is lowered due to a double image, and pattern recognition performance is lowered.

The sheet of paper 320 and the glass layer 330 may be bonded together using an adhesive. The sheet of paper 320 and the glass layer 330 may be front bonded or partially bonded.

 Meanwhile, according to one embodiment of the present invention, when tempered glass having a thickness of 0.1 mm to 3 mm is used as a glass layer, the quality of the image can be improved but it is vulnerable to external impact. In particular, tempered glass has a weaker problem in lateral impact, and it needs to be improved.

Therefore, according to the embodiment of the present invention, the size of the substrate 310 is set larger than the size of the glass layer 330. 8, at least one of the width W1 or the height H1 of the substrate 310 is larger than at least one of the width W2 or the height H2 of the glass layer 330. In other words, For example, at least one of the width W1 or the height H1 of the substrate 310 may be 1.01 to 1.2 times the size of at least one of the width W2 or the height H2 of the glass layer 330.

As described above, if the size of the substrate 310 is larger than the size of the glass layer 330, the side surface of the copyboard 300 can be protected. That is, even if an impact is applied to the side surface of the copyboard 300, since the substrate 310 primarily protects the glass layer 330 of the copyboard 300, the side impact is directly transmitted to the glass layer 330 It is possible to protect the copyboard 300. However, if the width or height of the substrate 310 exceeds 1.2 times the width or height of the glass layer, the manufacturing process becomes complicated, and there is a problem that packaging and transportation of the electronic copyboard becomes difficult.

The substrate 310 may be, for example, a foam pod, aluminum, steel plate, honeycomb, or the like. In the case where the substrate 310 is an iron plate, the sheet of paper 320 and the glass layer 330 are stacked on the iron plate. If the thickness of the glass layer 330 is 0.1 to 3 mm as in the embodiment of the present invention, since the glass layer 330 is light in weight, it is easy to laminate on the iron plate and the distance between the surface of the glass plate 330 and the surface of the glass layer 330 is close Since the magnetic force at the surface of the glass layer 330 is strong, utilization of the magnetite can be improved.

FIGS. 9 and 10 are a cross-sectional view and a top view of the copyboard according to another embodiment of the present invention, and FIGS. 11 and 12 are sectional views of the copyboard according to another embodiment of the present invention.

9 to 11, the copyboard 300 further includes a frame 340 formed at an edge of the substrate 310 that is larger than the glass layer 330. The frame 340 may be made of, for example, an elastic material or a plastic material. The frame 340 formed at the edge of the substrate 310 can further protect the copyboard 300 from external impacts.

9 through 10, the frame 340 may include a first area A1 formed on the edge 312 of the substrate 310. [

Referring to Figure 11, the frame 340 may include a first area A1 formed on an edge 312 of the substrate 310 and a second area A2 enclosing a side of the substrate 310 have.

12, the frame 340 includes a first area A1 formed on the edge 312 of the substrate 310, a second area A2 surrounding the side surface of the substrate 310, And a third region A3 formed on the rear surface 314 of the second substrate 310. [

On the other hand, the first area A1 may be spaced a predetermined distance D1 from the side of the glass layer 330, for example, 0,1 to 1 mm. Thus, even if the side surface of the copyboard 300, that is, the side surface of the frame 340 receives a strong impact, the impact applied to the frame 340 is not directly transmitted to the side surface of the glass layer 330. As a result, the glass layer 330 can be prevented from being broken.

The height of the first region A1 may be 1 to 1.1 times the thickness of the glass layer 330. [ When the first area satisfies this numerical value range, not only the glass layer 330 can be protected from impact, but also the dot pattern recognition performance of the electronic pen 100 at the edge of the copyboard 300 can be kept good . The frame 340-1 formed in the first direction (e.g., the height direction) of the copyboard 300 includes a frame 340-2 formed in the second direction (e.g., width direction) of the copyboard 300, ). Accordingly, even if an impact is applied to the side surface of the copyboard 300, the durability of the glass layer 300 can be increased since it does not affect the adjacent region.

Here, the first area A1, the second area A2, and the third area A3 of the frame 340 may be integrally formed, but the present invention is not limited thereto.

As described above, when the size of the substrate of the copyboard according to an embodiment of the present invention is larger than the size of the glass layer, the copyboard can be protected from side impact. In particular, when the frame further includes a frame at the edge of the substrate, and the side surface of the frame is disposed apart from the side surface of the glass layer, the side strengthening performance of the copyboard can be further enhanced.

As used in this embodiment, the term " portion " refers to a hardware component such as software or an FPGA (field-programmable gate array) or ASIC, and 'part' performs certain roles. However, 'part' is not meant to be limited to software or hardware. &Quot; to " may be configured to reside on an addressable storage medium and may be configured to play one or more processors. Thus, by way of example, 'parts' may refer to components such as software components, object-oriented software components, class components and task components, and processes, functions, , Subroutines, segments of program code, drivers, firmware, microcode, circuitry, data, databases, data structures, tables, arrays, and variables. The functions provided in the components and components may be further combined with a smaller number of components and components or further components and components. In addition, the components and components may be implemented to play back one or more CPUs in a device or a secure multimedia card.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the present invention as defined by the following claims It can be understood that

10: Electronic board system
100: Electronic pen
200: Information processing device
300: Electronic board
400: Projector

Claims (8)

Board,
A sheet on which a pattern for identifying position information is printed,
A glass layer formed on the sheet and made of tempered glass having a thickness of 0.1 to 3 mm, and
A frame including a first region formed on an edge of the substrate,
/ RTI >
Wherein the size of the substrate is larger than the size of the glass layer,
Wherein the first region is spaced apart from a side surface of the glass layer. The method according to claim 1,
Wherein at least one of the width and the height of the substrate is 1.01 to 1.2 times the width and height of the glass layer. delete The method according to claim 1,
Wherein the frame further includes a second area surrounding the side surface of the substrate. The method according to claim 1,
Wherein the first area is spaced apart from the side surface of the glass layer by a distance of 0.1 mm to 1 mm. The method according to claim 1,
Wherein the frame includes an elastic material or a plastic material. delete A substrate, a sheet on which the pattern for identifying position information is printed, a glass layer formed on the sheet and made of tempered glass having a thickness of 0.1 to 3 mm, and a first layer formed on the edge of the substrate, Wherein the first area is spaced apart from a side surface of the glass layer, and the second area is spaced from the side surface of the glass layer,
An electronic pen for sensing the pattern and extracting position information on the electronic whiteboard from the sensed pattern, and
An information processing device for receiving the positional information from the electronic pen and outputting a processing result according to the received positional information on the electronic whiteboard;
And an electronic board system.

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