KR101132648B1 - System and Method for Providing Moving Picture for Studying by Studying Situation, Devices and Recording Medium - Google Patents

Abstract

The present invention relates to a method and a system for providing a learning video according to a learning situation, and an apparatus and a recording medium for the same. An apparatus having an image acquisition module for acquiring image data corresponding to any one of characters, figures, and images, and a motion sensor module for sensing movement, direction, and position, the image acquired through the image acquisition module A code recognizing unit for recognizing / reading a pattern of a plurality of points constituting data and recognizing a bit code encoded invisibly on the image data, and the printing medium through the motion sensor module while recognizing the bit code. Recognize the drag motion of dragging and respond to the problem or answer corresponding to the bit code. And a motion recognition unit for determining a situation determination motion code, and video identification information for determining a learning video content to be provided to the student according to the learning situation according to the motion recognition by combining the recognized bit code and the situation determination motion code. And an information providing unit for providing the video identification information to a portable video playback device having an information configuration unit and a learning video content connected with the bit code and the lecture identification information.

Learning, video, device

Description

System and Method for Providing Moving Picture for Studying by Studying Situation, Devices and Recording Medium}

1 is a diagram showing the configuration of a dot pattern recognition apparatus according to an embodiment of the present invention.

2 is a diagram illustrating a configuration of a system for providing a learning video according to an embodiment of the present invention.

3 is a diagram illustrating a video content package configuration according to an embodiment of the present invention.

4 is a diagram illustrating a process of printing a tutorial according to an embodiment of the present invention.

5 is a diagram illustrating a video content package configuration process according to an embodiment of the present invention.

FIG. 6 is a diagram illustrating a process of recognizing a bit code from a dot pattern constituting a question or answer printed on a workbook according to an exemplary embodiment of the present invention.

7 is a diagram showing the configuration of a portable video player according to an embodiment of the present invention.

8 is a diagram illustrating a process of playing video content corresponding to a question or answer printed on a workbook according to an exemplary embodiment of the present invention.

9 is a diagram illustrating a process of playing video content corresponding to a question or answer printed on a workbook according to another exemplary embodiment of the present invention.

FIG. 10 is a diagram illustrating a dot pattern structure in which a bit code is encoded in print data of a tutorial book according to an embodiment of the present invention.

11 illustrates a bit code structure generated through dot pattern analysis according to an embodiment of the present invention.

12 illustrates a bit code structure generated through dot pattern analysis according to another exemplary embodiment of the present invention.

13 is a diagram illustrating a bit code structure generated through dot pattern analysis according to another exemplary embodiment of the present invention.

14A and 14B illustrate extending a bit code according to an embodiment of the present invention.

15 is a diagram illustrating a process of combining and generating codes through dot pattern analysis according to an exemplary embodiment of the present invention.

16 is a diagram illustrating a process of combining and generating codes through dot pattern analysis according to another exemplary embodiment of the present invention.

<Description of main parts of drawing>

100: dot pattern recognition device 105: control unit

110: code recognition unit 115: motion recognition unit

120: information component 125: information provider

130: image acquisition module 135: motion sensor module

140: communication unit 145: operation unit

150: memory unit

The present invention prints a bit code encoded in a pattern of dots not visible in the text, figure, image constituting the question or the answer of the workbook, the student in the process of solving the problem or correct the answer of the workbook Recognizes a bit code printed invisibly in the question or answer of the tutorial through a dot pattern recognition device that recognizes a bit code encoded invisibly in the question or answer, and drags the dot pattern recognition device while the bit code is recognized. After recognizing the motion and confirming the learning situation of the student, through the portable video playback device of the student to play and output the problem description video content or the answer explanation video content corresponding to the recognized bit code and the learning situation of the student in real time. To do that.

Conventional video lectures using internet media have the limitation of not being able to deliver knowledge in the form of mutual communication between students and video lectures as well as functioning as a one-way knowledge transfer medium. For example, the video lecture may be played even when the student who is taking the video lecture is not watching the video lecture.

After inserting a code value encoded in a recent barcode or two-dimensional barcode and printing it on a textbook, after recognizing the code value encoded in the barcode or two-dimensional barcode through a barcode reader, information associated with the code value is transmitted through a communication network. A multimedia textbook in the form of receiving and outputting has been released.

However, such a multimedia textbook has a problem that the bar code or the two-dimensional bar code is too conspicuous, which hinders the learning effect. Even though the information related to the code value is received and output through a communication network, the multimedia textbook uses the conventional internet medium. The lecture request process of video lectures is applied to textbooks using barcodes or two-dimensional barcodes, and it contains the limitations of one-way knowledge transfer media.

An object of the present invention for solving the problems described above, after printing the bit code encoded in the pattern of the dots, invisible characters, figures, images constituting the question or the answer of the workbook, the student to solve the problem of the workbook Recognize the bit code printed invisibly in the question or answer of the tutorial through a dot pattern recognition device that recognizes the bit code encoded invisibly in the question or answer of the tutorial in the process of solving or matching the correct answer, Recognize the drag motion of the dot pattern recognition device while the device is recognized and confirm the learning situation of the student, and then explain the corresponding bit code and the learning situation of the student through the portable video player of the student. Content or answer description Video content is to be played back in real time.

The dot pattern recognition apparatus according to the present invention includes an image acquisition module for acquiring image data corresponding to any one of a character, a figure, and an image constituting a question or answer printed on a specific print area on a print medium constituting a tutorial; A device having a motion sensor module for sensing movement, direction, and position, the apparatus comprising: recognizing / reading a pattern of a plurality of points constituting image data acquired through the image acquisition module and encoding the image data invisibly A code recognition unit for recognizing a bit code and a situation for a problem or answer corresponding to the bit code by recognizing a drag motion of dragging the print medium through the motion sensor module while recognizing the bit code. A motion recognition unit for determining a decision motion code, and combining the recognized bit code with a situation determination motion code And a portable video player including an information constructing unit configured to identify video content to be provided to the student according to a learning situation according to the motion recognition, and a video content connected to the bit code and the class identification information. And an information providing unit for providing the video identification information.

The drag motion may be any one of 'O', 'X', '/', '_', and 'V' of the dot pattern recognition apparatus while the image acquisition module is in close contact with the print medium. Characterized in that it comprises a drag.

Further, while the bit code corresponding to the problem on the print medium is recognized, the drag motion of 'O' is matched with the situation determination motion code of 'correct' and the drag motion of 'X' or '/' is correct. While the drag motion of '_' or 'V' is matched with the situation judgment motion code of 'Request for explanation' and the bit code corresponding to the answer on the print medium is recognized, Drag motions of 'O' or '_' or 'V' match the situation's motion code in "Select an answer" for that answer, and drag motions of "X" or "/" do not "select" for that answer It is characterized by matching with the situation determination motion code of "."

In accordance with an aspect of the present invention, a method for providing a learning video for each learning situation may include: obtaining an image for acquiring image data corresponding to any one of characters, shapes, and images constituting a question or answer printed on a specific printing area on a print medium constituting the tutorial; A method for providing video content for each learning situation through a device having a module and a motion sensor module for sensing a movement, a direction, and a position, the code recognizing unit configured to configure a plurality of image data acquired through the image acquisition module. Recognizing / reading a pattern for a point to recognize a code code invisibly encoded on the image data, and dragging the print medium through the motion sensor module while the motion recognition module recognizes the bit code. Recognize the drag motion to solve the problem or answer corresponding to the bit code. Determining a determination motion code; and combining the recognized bit code and the situation determination motion code by the information constituent to determine video identification information for determining a learning video content to be provided to the student according to a learning situation according to the motion recognition. And providing the video identification information to the portable video player having the learning video content connected to the bit code and the lecture identification information by the configuring step and the information providing unit.

In addition, a code of a dot pattern is encoded into a dot pattern code of a problem code that combines a tutorial identification code and a problem identification code in a character, figure, or image constituting a problem of a tutorial composed of printing a character, figure, or image on a print medium by a print processing means. Process to print, and if the question of the tutorial includes a multiple-choice answer, combines the tutorial identification code, the problem identification code, and the answer identification code for identifying each multiple-choice answer in the texts, figures, and images constituting each multiple-choice answer. Processing one answer code to be printed by encoding a dot pattern code, and one or more learning situations associated with the problem corresponding to the problem identification code among the problems included in the tutorial corresponding to the tutorial identification code in the content structuring means. Problem description Video content and situation determination motion code corresponding to each learning situation and the above problem If the questions in the tutorial include multiple-choice answers, one or more learning-specific answer explanation video content associated with each multiple-choice answer included in the question, the context determination motion code corresponding to each learning situation, and the answer Connecting a code to construct a video content package to be stored in a predetermined removable storage medium, and processing the video content package to be stored in a portable storage medium provided in a portable video player by a content processing means, and a dot pattern The image recognition module recognizes and reads a dot pattern from the recognized image data by dragging a specific print area on the print medium constituting the tutorial through the image acquisition module, and encodes the image, printed on the print medium, invisibly. Recognize bit code, Recognize the bit code Determining a situation determination motion code corresponding to a drag motion during the step; providing the video identification information combining the identified bit code and the situation determination motion code to the portable video player; And extracting and playing the problem description video content or the answer description video content corresponding to the bit code and the situation determination motion code included in the video identification information from the portable storage medium in the portable video player. It is done.

The present invention includes a computer-readable recording medium characterized by recording a program for executing the above-described learning video providing method for each learning situation.

In the learning video providing system for each learning situation according to the present invention, a problem code in which a learning identification code and a problem identification code are combined with a text, a figure, and an image forming a problem of a tutorial composed of printing a letter, a figure, and an image on a print medium. Is processed to be printed by coding a dot pattern, and if the question of the tutorial includes a multiple-choice answer, the tutorial identification code and the problem identification code and each multiple-choice answer are included in the texts, figures, and images constituting each multiple-choice answer. Print processing means for encoding the answer code combining the answer identification code for identification into a code of a dot pattern to be printed, and associated with the problem corresponding to the problem identification code among the problems included in the tutorial corresponding to the tutorial identification code. Description of one or more learning situations Problems motions corresponding to video content and each learning situation And a question code corresponding to one or more learning situations associated with each of the multiple-choice answers included in the question, and a situation determination motion corresponding to each learning situation, when the questions in the tutorial include multiple-choice answers. Content constituting means for constructing a video content package to be stored in a predetermined removable storage medium by connecting a code and the answer code, and content processing means for processing the video content package to be stored in a portable storage medium provided in a portable video player. And a bit encoded invisible to the characters, figures, and images printed on the print medium by recognizing and reading a dot pattern from the recognized image data by dragging a specific print area on the print medium constituting the tutorial through the image acquisition module. To recognize the code and to recognize the bit code And a dot pattern recognition device for determining a situation determination motion code corresponding to the drag motion during the operation, and providing the portable video player with video identification information combining the identified bit code and the situation determination motion code. The portable video reproducing apparatus may extract and reproduce the problem description video content or the answer description video content corresponding to the bit code and the situation determination motion code included in the video identification information from the removable storage medium. .

Hereinafter, with reference to the accompanying drawings and description will be described in detail the operating principle of the preferred embodiment of the present invention. However, the drawings and the following description shown below are for the preferred method among various methods for effectively explaining the features of the present invention, the present invention is not limited only to the drawings and description below. In addition, in the following description of the present invention, if it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted. In addition, terms to be described below are terms defined in consideration of functions in the present invention, which may vary according to a user's or operator's intention or custom. Therefore, the definition should be made based on the contents throughout the present invention.

As a result, the technical spirit of the present invention is determined by the claims, and the following examples are one means for efficiently explaining the technical spirit of the present invention to those skilled in the art to which the present invention pertains. It is only.

1 is a diagram showing the configuration of a dot pattern recognition apparatus 100 according to an embodiment of the present invention.

In more detail, FIG. 1 illustrates an image acquisition module 130 for acquiring image data of at least one of a character, a figure, and an image constituting a problem or an answer printed on a specific print area on a print medium constituting a tutorial, and moving and oriented. And a motion sensor module 135 for sensing a position, and recognizing / reading a pattern of a plurality of points constituting image data acquired through the image acquisition module 130 to encode the image data invisibly. Recognized a bit code, and a situation determination on a problem or answer corresponding to the bit code by recognizing a drag motion of dragging the print medium through the motion sensor module 135 while the bit code is recognized. A dot pattern recognition field that determines a motion code and constitutes video identification information that combines the recognized bit code and the situation determination motion code. As shown in FIG. 1, those skilled in the art to which the present invention pertains may refer to and / or modify the present invention in various ways (for example, the configuration of the dot pattern recognizing apparatus 100). However, some components may be omitted, subdivided, or combined). However, the present invention includes all implementation methods inferred from the above, and the technical features only by the implementation method illustrated in FIG. This is not limited.

According to the exemplary embodiment of the present invention, the external shape of the dot pattern recognition device 100 may be formed in a pen shape that can be held by a hand and a shape similar to a pen. 100 may be configured in a form similar to a tool that can be used for learning, the present invention is not limited by the appearance of the dot pattern recognition apparatus 100.

According to the present invention, the tutorial is printed on a print medium by displaying one or more pieces of print data of characters, figures, and images constituting a question and answer for learning as a set of countless points. The set of countless points constituting the data is difficult to identify with the naked eye, and it is preferable to display the points with a predetermined basic pattern structure.

For example, the basic pattern structure for the set of points constituting the print data preferably includes a lattice structure.

According to the present invention, the set of countless dots constituting the print data is a predetermined bit through the dot pattern while maintaining the shape of the print data by displaying the points in a pattern structure deformed from the basic pattern structure. A code is encoded and included in the print data. A preferred method of encoding a predetermined bit code through a dot pattern constituting the print data will be described with reference to FIGS. 10 to 16.

According to the present invention, print data corresponding to a problem consisting of characters, figures, and images is printed on a print medium constituting the tutorial, and when the problem includes a multiple-choice answer, the print medium includes multiple-choice questions on the problem. The print data corresponding to the answer may be printed.

Among the print data printed on the print medium constituting the tutorial, the print data corresponding to the problem is characterized in that a problem code obtained by combining a predetermined tutorial identification code and a problem identification code is coded and printed with a dot pattern code. The tutorial identification code includes a bit code for identifying a tutorial on which the print data is printed among a plurality of tutorials, and the problem identification code identifies one of a plurality of questions printed on the tutorial. It is preferable to include a bit code.

Here, the workbook identification code, grade code (for example, 1 to 3 years old, 1st grade elementary school, 3rd year of high school, etc.), subject code (for example, Korean language code, English language code, mathematics code, etc.), publication year It is preferable to include one or more codes, tutorial unique code.

The problem identification code may include a number code for assigning a first number to the first question of the tutorial and a last number for the last question, or combining the page number of the tutorial and the question number on each page. It is preferable to include one number code.

According to the method of the present invention, the number of bits and code system of the tutorial identification code and the problem identification code may be variously determined according to the intention of those skilled in the art under conditions that do not overlap, and the present invention is not limited thereto.

Of the print data printed on the print media constituting the tutorial, the print data corresponding to each multiple-choice answer of the question is an answer code combining the tutorial identification code, the problem identification code, and the answer identification code identifying each multiple-choice answer. It is characterized in that the coding is printed by the code of the dot pattern, and the tutorial identification code and the question identification code includes the tutorial identification code and the problem identification code included in the question of the multiple-choice answer, but the answer identification code is It is desirable to include a bit code that identifies each multiple-choice answer included in the problem.

Here, the answer identification code, the answer code corresponding to the number of each multiple choice answer, the correct answer code assigned when the multiple choice answer is the correct answer, or the incorrect answer code assigned when the multiple choice answer is incorrect It is preferable to comprise a.

According to the exemplary embodiment of the present invention, the answer identification code including an incorrect answer code among the answer identification codes may further include a similarity code (that is, a probability value that may be misunderstood as a correct answer) with the correct answer including a correct answer code. It is possible.

According to the present invention, the dot pattern recognition apparatus 100 acquires image data corresponding to any one of a character, a figure, and an image constituting a question or answer printed on a specific print area on a print medium constituting a tutorial. It characterized in that it comprises an image acquisition module (130).

According to the method of the present invention, the image acquisition module 130, the lens unit for injecting a subject including a character, a figure, an image constituting a question or answer printed on a specific print area on the print medium constituting the tutorial And a CCD (Charge Coupled Device) unit for acquiring image data of a subject incident through the lens unit.

For example, when the external shape of the dot pattern recognition device 100 is configured in the shape of a pen, the image acquisition module 130 is preferably located at a portion corresponding to the pen tip of the pen, and the dot pattern recognition device. When dragging a specific print area on the print medium while holding the hand 100, the print data may be easily designed to easily obtain the print data from the print area on the print medium.

According to the present invention, the dot pattern recognition apparatus 100, the printing of the lens unit of the image acquisition module 130 in a state in which the student learning using the learning hand holding the dot pattern recognition apparatus 100 in the hand After positioning in the direction of the print area on the medium, when the dot pattern recognition apparatus 100 is moved, it comprises a motion sensor module 135 for sensing the movement, direction, and position of the dot pattern recognition apparatus 100 It features.

According to the exemplary embodiment of the present invention, the motion sensor module 135 includes a lens unit of the image acquisition module 130 in a state in which a student holds the dot pattern recognition apparatus 100 in the direction of a print area on the print medium. A sensor module for recognizing a motion of dragging the dot pattern recognition apparatus 100 after being positioned as a sensor, comprising: a sensor unit including one or more of one, two, and three axis gyro sensors, a gravity sensor, and an acceleration sensor; It is preferable that the detection unit is configured to read the sensing signal sensed through the sensor unit to detect the movement, direction, position.

For example, when the external shape of the dot pattern recognition device 100 is configured in the shape of a pen, the motion sensor module 135 holds 'O', 'X' while holding the dot pattern recognition device 100 in a hand. It is preferable to sense a drag motion of dragging any one of ',' / ',' _ ', and' V '.

According to the present invention, the dot pattern recognition apparatus 100 recognizes / reads a pattern for a plurality of points constituting the image data obtained through the image acquisition module 130 and encodes the image data so that it is not visible on the image data. Recognized a bit code, and a situation determination on a problem or answer corresponding to the bit code by recognizing a drag motion of dragging the print medium through the motion sensor module 135 while the bit code is recognized. A control unit 105 for determining a motion code, controlling to configure video identification information combining the recognized bit code and a situation determination motion code, and a communication unit 140 for providing the configured video identification information to a portable video player. And video identification information by combining the recognized bit code and the situation determination motion code. Configuration, or be composed of the video identification information characterized in that comprising the further operation unit 145 for operating the availability of a portable video player.

The controller 105 includes a processor including a CPU / MPU and an execution memory in hardware, and configures the image data acquired by the dot pattern recognition apparatus 100 through the image acquisition module 130 in software. Recognizes / reads a pattern for a plurality of dots to recognize a code code that is invisible on the image data, and drags the print medium through the motion sensor module 135 while recognizing the bit code. Recognizing the drag motion to determine the situation determination motion code for the problem or answer corresponding to the bit code, and program code constituting the video identification information combining the recognized bit code and the situation determination motion code is loaded A recording medium to be executed (and thus, a plurality of points constituting image data acquired through the image acquisition module 130). Recognizes / reads a pattern to recognize an invisible bit code on the image data, and performs a drag motion of dragging the print medium through the motion sensor module 135 while recognizing the bit code. The control unit 105 recognizes a program code configuration for recognizing and determining a situation determination motion code for a problem or answer corresponding to the bit code, and constituting video identification information combining the recognized bit code and the situation determination motion code. Illustrated).

The communication unit 140 may be short-range wired communication such as USB (Universal Serial Bus) communication, RS-232c communication, or Bluetooth (BlueTooth), Wi-Fi (Wi-Fi), UWB (ultra wideband), or RF (Radio Frequency) communication. It provides a communication function for providing the video identification information to the point pattern recognition device 100 and the portable video playback device located in the short-range through any short-range communication, such as short-range wireless communication, near-field optical communication using infrared light. The present invention is not limited by the communication scheme and protocol configuration of the communication unit 140.

The operation unit 145 recognizes the bit code from the image data acquired through the image acquisition module 130, determines the situation determination motion code through the motion recognition, and then combines the bit code and the situation determination motion code. And a key operation unit 145 configured to determine whether to provide the moving image identification information to the portable video player through the communication unit 140. The key operation unit 145 ) May be any one of a button method, a touch method, and a vibration sensing method.

According to the present invention, the dot pattern recognition apparatus 100 recognizes / reads a pattern for a plurality of points constituting the image data obtained through the image acquisition module 130 and encodes the image data so that it is not visible on the image data. Recognized a bit code, and a situation determination on a problem or answer corresponding to the bit code by recognizing a drag motion of dragging the print medium through the motion sensor module 135 while the bit code is recognized. And a memory unit 150 corresponding to a nonvolatile memory for determining a motion code and storing a program code constituting video identification information combining the recognized bit code and the situation determination motion code. The program code stored in the unit 150 may be loaded into the controller 105 at the same time as the booting of the dot pattern recognition apparatus 100. desirable.

According to the exemplary embodiment of the present invention, the memory unit 150 stores a situation determination motion code matching any one of 'O', 'X', '/', '_' and 'V'. Preferably, the situation determination motion code may be defined as a constant (or variable) in the program code according to the intention of the person skilled in the art.

Referring to FIG. 1, the control unit 105 of the dot pattern recognition apparatus 100 recognizes / reads a pattern for a plurality of dots constituting image data acquired through the image acquisition module 130 to read the image. The code recognition unit 110 recognizes a bit code encoded invisibly on data, and recognizes a drag motion of dragging the print medium through the motion sensor module 135 while recognizing the bit code. The motion recognition unit 115 determines a situation determination motion code for a question or answer corresponding to the bit code, and combines the recognized bit code and the situation determination motion code according to a learning situation according to the motion recognition. Carry the configured video identification information through the information structuring unit 120 constituting the video identification information for determining the learning video content to be provided to the communication unit 140 and the communication unit 140. And an information providing unit 125 provided to the moving picture reproducing apparatus.

Since the battery power provided in the dot pattern recognition device 100 is applied, the dot pattern recognition device 100 is booted and the program code included in the memory unit 150 is loaded into the controller 105. The image acquisition module 130 periodically acquires image data corresponding to any one of a character, a figure, and an image constituting a question or answer printed on a specific print area on a print medium constituting a tutorial. 110 recognizes the pattern of the plurality of points constituting the image data obtained through the image acquisition module 130 by substituting a predetermined coordinate system, and reads the coordinate values where each point is located on the coordinate system to read the image. And recognizing a bit code encoded invisibly on the data, and encoding invisibly on the image data. Exemplary method of recognizing a bit code will be described with the drawings shown in the figures 10 to 16.

According to the exemplary embodiment of the present invention, the bit code recognized / read from the print data corresponding to the problem printed on the print medium constituting the tutorial through the code recognition unit 110 is a problem with a predetermined tutorial identification code. It is preferable to include a problem code combined with the identification code, the bit code that is recognized / read from the print data corresponding to the multiple choice answer printed on the print medium constituting the tutorial through the code recognition unit 110 is It is preferable that the answer code comprises a tutorial identification code and a problem identification code included in the question code and an answer code that combines an answer identification code for identifying each multiple-choice answer. However, the bit code recognized by the code recognizing unit 110 is not limited to the problem code and the answer code configured as described above, it will be apparent that the bit code configuration can be variously modified according to the intention of those skilled in the art It is.

While the bit code is recognized from the print data printed on the print medium constituting the tutorial through the code recognition unit 110, the motion recognition unit 115 is the print medium through the motion sensor module 135 Characterized in that the drag motion of the dot pattern recognition device 100 to drag (Drag).

According to the exemplary embodiment of the present invention, the drag motion recognized by the motion recognition unit 115 may include the image acquisition module 130 in the tutorial printing medium while the user holds the dot pattern recognition apparatus 100 in his hand. It is preferable to include a motion of dragging one of 'O', 'X', '/', '_', and 'V' in close contact with a specific print area of the image.

Here, the motion recognition unit 115 may recognize the drag motion of any one of 'O', 'X', '/', '_', and 'V' according to various drag patterns according to a user's writing habit. It is desirable to be defined so that.

For example, in the case of drag motion of 'O', the drag motion may be dragged from 12 o'clock to counterclockwise direction or from 6 o'clock to clockwise according to the user's writing habit. 115 is preferably defined to recognize the drag motion of the 'O' according to the drag pattern according to the user's writing habits.

Alternatively, in case of drag motion of 'X', drag '후에' after '↙' to display 'X' or 'X' by dragging '↙' after '↘' according to the user's writing habit. The motion recognition unit 115 may be defined to recognize the drag motion of the 'X' according to the drag pattern according to the writing habit of the user.

When the drag motion of any one of 'O', 'X', '/', '_', and 'V' is dragged through the motion sensor module 135, the motion is recognized. The unit 115 identifies and determines a situation determination motion code that identifies a learning situation based on a problem or answer corresponding to the bit code by linking the drag motion recognized with the code recognition unit 110 and the drag motion. It is characterized by.

According to the exemplary embodiment of the present invention, the drag motion of the 'O' while the code recognition unit 110 recognizes a bit code (eg, a tutorial identification code and a problem identification code) corresponding to a problem on the tutorial print medium. When it is recognized, the motion recognition unit 115 preferably checks the situation determination motion code of "correct answer" or the situation determination motion code of "correct answer" from the memory unit 150.

Alternatively, the drag motion of 'X' or '/' is recognized while the code recognizing unit 110 recognizes a bit code (eg, a tutorial identification code and a problem identification code) corresponding to a problem on the tutorial print medium. In this case, the motion recognition unit 115 may check the situation determination motion code of "correct" or the situation determination motion code of "correct".

Alternatively, the drag motion of '_' or 'V' is recognized while the code recognizing unit 110 recognizes a bit code (eg, a tutorial identification code and a problem identification code) corresponding to a problem on the tutorial print medium. When the motion recognition unit 115 checks the situation determination motion code of the "explanation request" from the memory unit 150 or determines the situation determination motion code of the "explanation request".

Alternatively, while the code recognizing unit 110 recognizes a bit code corresponding to an answer on the tutorial print medium (eg, a tutorial identification code, a problem identification code, and an answer identification code), the 'O' or '_' or When the drag motion of 'V' is recognized, the motion recognition unit 115 checks the situation determination motion code of "answer selection" from the memory unit 150, or checks the situation determination motion code of "answer selection". It is desirable to decide.

Alternatively, while the code recognizing unit 110 recognizes a bit code (eg, a tutorial identification code and a problem identification code and an answer identification code) corresponding to an answer on the tutorial print medium, the '_' or 'V' When the drag motion is recognized, the motion recognition unit 115 may check the situation determination motion code of the "description request" from the memory unit 150 or determine the situation determination motion code of the "description request". .

According to the exemplary embodiment of the present invention, the recognized drag motion and the situation determination motion code according to the present invention may be variously added, extended, and modified, and the present invention is not limited thereto.

When the bit code is recognized through the code recognition unit 110 and the situation determination motion code corresponding to the specific drag motion is confirmed and determined by the motion recognition unit 115, the information configuration unit 120 recognizes the bit code. And combining the identified bit code and the situation determination motion code to construct video identification information for dynamically determining and playing the learning video content to be provided to the student according to the learning situation according to the motion recognition.

Here, the method of combining the recognized bit code and the situation determination motion code may include inserting the situation determination motion code into a spare area of the bit code, or when the bit code consists of a header and a code. The situation determination motion code may be inserted into a header area, or the situation determination motion code may be concatenated to the bit code, and various modifications may be made according to the intention of those skilled in the art. Include.

When the video identification information combining the bit code and the situation determination motion code is configured, the information providing unit 125 checks whether a communication channel is connected to the portable video reproducing apparatus through the communication unit 140, and the communication channel. It is characterized in that for transmitting the configured video identification information to the portable video playback device through.

When the operation unit 145 is provided in the dot pattern recognition apparatus 100 according to the exemplary embodiment of the present invention, the information providing unit 125 transmits the video identification information by the operation unit 145 to the portable video player. In the case of operating to provide a video, it is preferable to transmit the configured video identification information through a communication channel connected to the portable video player.

2 is a diagram illustrating a configuration of a system for providing a learning video according to an embodiment of the present invention.

In more detail, Figure 2 encodes and prints a bit code in the form of a code of a dot pattern on characters, figures, and images constituting a question or answer printed on a tutorial, and each bit code corresponding to the question or answer in the tutorial. After constructing a video content package that connects the problem description video content or the answer description content to provide a portable video playback device 220 of the student to solve the problem through the tutorial, through the dot pattern recognition device 225 Recognizes / reads a dot pattern on a character, a figure, or an image constituting a question or answer printed on a tutorial to recognize the bit code, and drags the dot pattern recognition device 225 while recognizing the bit code. After determining the situation determination motion code corresponding to the drag motion to be identified, identifying the video combining the bit code and the situation determination motion code. As shown in FIG. 1, a system configuration for reproducing a problem description video content or an answer description video content corresponding to the recognized bit code through the portable video player 220 is described. Those skilled in the art can refer to and / or modify this drawing 2 to infer various implementation methods (eg, some implementations are omitted, subdivided, or combined) for the configuration of the learning video providing system. Although there will be, the present invention includes all the implementation methods inferred above, the technical features are not limited only to the implementation method shown in FIG.

According to the present invention, the learning video providing system, at the time of printing the tutorial, the printed data on the print media constituting the tutorial, a number of print data of one or more of the characters, figures, images constituting a question or answer constituting the answer ( A printing system including a printing system displaying and printing a set of points, and a printing medium on which a question or answer is printed using a set of countless points through the printing system, and a character constituting a problem or answer printed on the learning book, A dot pattern recognition device 225 for recognizing a bit code encoded with a bit code in the form of a dot pattern in a figure and an image, and a portable video for playing a problem explanation video content or an answer explanation video content connected with the recognized bit code. And a reproducing apparatus 220.

The printing system is a generic term for a system including at least one device, a terminal, and a server for printing a predetermined printing material (for example, ink, toner, etc.) by adhering / coating a print medium according to the shape and color of print data. When printing a tutorial, the printing system is characterized by displaying one or more pieces of print data among characters, figures, and images constituting a question or answer to be printed on the tutorial by displaying a set of a number of points.

The tutorial is a printout in which one or more pieces of print data of characters, figures, and images constituting a question and answer are displayed on a print medium as a set of countless dots, and the set of countless dots constituting the print data is difficult to visually identify. In addition, it is preferable to display the points in a preset basic pattern structure.

The dot pattern recognition apparatus 225 recognizes / reads a dot pattern of a character, a figure, and an image printed on a workbook as a set of countless dots, and encodes and prints the code code invisibly in the printed question or answer. As a device for recognizing the above, a preferred configuration for the dot pattern recognition device 225 will be described with reference to FIG.

The portable video player 220 is a device for playing a problem description video content or an answer explanation video content connected with a bit code recognized by the dot pattern recognition device 225. A preferred configuration for this will be described with reference to FIG.

According to the present invention, the learning video providing system, the problem description video content for explaining the gist of each problem included in the study book printed through the printing system, the content of the question and how to solve, and the correct answer for each question And a content D / B 215 for storing summary / supplementary explanations and answer explanation video content including analysis / avoidance explanations for incorrect answers in connection with the tutorial information.

Referring to Figure 2, the learning video providing system, in conjunction with the printing system, the problem code that combines the tutorial identification code and the problem identification code in the characters, figures, and images constituting the problem printed on the workbook of the dot pattern If the problem of the tutorial includes the multiple choice answer, the identification of the answer that identifies the tutorial identification code and the problem identification code and each multiple choice answer in the characters, figures, and images constituting each multiple choice answer A print processing unit 210 for processing the answer code combining the codes into a code of a dot pattern so as to be printed, and problem description video content for at least one learning situation corresponding to the problem code, and a situation determination corresponding to each learning situation If the motion code and the problem code is connected, and the problem in the tutorial includes a multiple choice answer, The video content package to be stored in a predetermined removable storage medium is constructed by linking one or more video description contents corresponding to the multiple-choice answers included in the question, a situation determination motion code corresponding to each learning situation, and the answer code. And a content processing means 200 for processing the video content package to be stored in a portable storage medium provided in the portable video player 220.

When printing a tutorial through the printing system, the print processing unit 210 assigns (or determines) a tutorial identification code that can uniquely identify the printed tutorial and uniquely identifies a plurality of problems included in the tutorial. Assigns (or determines) a problem identification code that can be easily identified, and, in the case of a question corresponding to the question assignment (or determined) problem identification code, which includes a multiple-choice answer, uniquely answer each multiple-choice answer of the problem. Assign (or determine) an identifiable answer identification code.

Here, the workbook identification code, grade code (for example, 1 to 3 years old, first grade elementary school, high school third grade, etc.), subject code (for example, Korean language code, English language code, mathematics code, etc.), year of issue It is preferable to include one or more codes, tutorial unique code.

The problem identification code may include a number code for assigning a first number to the first question of the tutorial and a last number for the last question, or combining the page number of the tutorial and the question number on each page. It is preferable to include one number code.

Here, the answer identification code, the answer code corresponding to the number of each multiple choice answer, the correct answer code assigned when the multiple choice answer is the correct answer, or the incorrect answer code assigned when the multiple choice answer is incorrect It is preferable to comprise a.

According to the exemplary embodiment of the present invention, the answer identification code including an incorrect answer code among the answer identification codes may further include a similarity code (that is, a probability value that may be misunderstood as a correct answer) with the correct answer including a correct answer code. It is possible.

When the tutorial identification code, the problem identification code, and the answer identification code for each question are assigned (or determined), the print processing unit 210 assigns the tutorial identification code and each problem identification code to each question displayed in the tutorial. Combination constitutes a question code, and in the case of a question including multiple-choice answers among questions corresponding to the question identification code, an answer code is formed by combining the tutorial identification code, the problem identification code, and the answer identification code.

When a problem code and a solution code for each problem included in the learning are configured, the print processing unit 210 may include one or more of characters, figures, and images constituting each problem printed on the print media of the tutorial. Configure the problem print data for processing the problem code to be encoded in a pattern of dots in the print data, and when the question includes a multiple-choice answer, the answer is included in at least one print data of characters, figures, and images constituting the answer. After constructing the answer print data for processing the code to be encoded into a pattern of dots, the print system including the question print data and the answer print data is provided to the printing system, whereby the characters and graphics constituting the problem printed on the tutorial are formed. A question pattern that combines the tutorial identification code and the problem identification code into an image If the problem of the tutorial includes a multiple-choice answer, the learning identification code, the problem identification code, and the answer identification code for identifying each multiple-choice answer are included in the characters, figures, and images constituting the multiple-choice answer. The combined answer code is encoded into a code of a dot pattern and processed to be printed.

According to the exemplary embodiment of the present invention, the print processing unit 210 preferably processes the problem code and the answer code by encoding the code of the invisible dot pattern.

According to another exemplary embodiment of the present invention, the print processing unit 210 preferably processes the problem code and the answer code by encoding the code of a dot pattern (or figure pattern) that can be visually identified.

According to another exemplary embodiment of the present invention, it is preferable that the print processing unit 210 processes the problem code and the answer code to be printed by further encoding a hologram code in a dot pattern (or figure pattern).

According to another embodiment of the present invention, a function of allocating (or determining) the workbook identification code, the question identification code and each answer identification code, and the combination of the workbook identification code and the problem identification code constitute a problem code or the The function of constructing the answer code by combining the workbook identification code, the problem identification code, and the answer code may be provided in other means (for example, the content structuring means 205) in addition to the print processing means 210. The invention is not limited.

The tutorial identification code, the question identification code, and each answer identification code are assigned (or determined), and a question code is formed by combining the tutorial identification code and the problem identification code, or the tutorial identification code and the problem identification code and the answer code. When the answer code is configured by combining the contents, the content structuring means 205 checks the problem description video content and the answer explanation video content for each problem with respect to the printed book from the content D / B 215, and then the problem. One or more problem descriptions for each learning situation corresponding to the code. The video content and the situation determination motion code corresponding to each learning situation and the problem code are connected to each other, and if the problem in the tutorial includes a multiple choice answer, Answer description of one or more learning situations associated with the multiple choice answer. Video content and the corresponding situation for each learning situation. Connecting the determined motion code and the answer code, it is characterized in that configuring the video content package to be stored in the predetermined removable storage medium.

Here, the video content package is connected to the problem description video content data or the answer description video content with each problem code or answer code and the situation determination motion code corresponding to each learning situation to be stored in the removable storage medium, It is preferable to include a program code that can easily search / extract the problem description video content data or the answer description video content corresponding to each learning situation through the question code or the answer code.

When the video content package is configured, the content processing means 200 processes the video content package to be stored in a portable storage medium provided in the portable video player 220.

According to an embodiment of the present invention, the content processing means 200 preferably records the video content package on a removable storage medium detachable to the portable video player 220, in which case the mobile storage. The medium is provided to a student who purchases the workbook and has a portable video player 220 that is removable from the removable storage medium.

According to an exemplary embodiment of the present invention, the content processing means 200 communicates with the portable video player 220 through a host terminal (or a network), and connects the portable video content package to the portable through the communication connection. It is preferable to download and record to a removable storage medium provided in the video player 220.

3 is a diagram illustrating a video content package configuration according to an embodiment of the present invention.

In more detail, FIG. 3 shows a problem code in which the tutorial identification code and the problem identification code are combined in the content constituting means 205 shown in FIG. 2, and a situation determination motion code corresponding to each learning situation for the problem. The above-described learning situation by connecting the video content, the answer code combining the tutorial identification code, the problem identification code and the answer identification code, the situation determination motion code corresponding to each learning situation for the answer and one or more learning situations Answer Explanation As an example of a video content package configuration configured in connection with video content, a person having ordinary knowledge in the technical field to which the present invention pertains may refer to FIG. It would be possible to infer a method of implementation, but the present invention is directed to all of the methods of inference. Is done by also, to which the technical feature that is not limited to the exemplary method shown in the figure 3.

Referring to FIG. 3, the video content package includes an identification code area including a question code in which the tutorial identification code and a problem identification code are combined, or an answer code in which the tutorial identification code and a problem identification code and an answer identification code are combined. And a motion code region including a situation determination motion code corresponding to each learning imagination for the question or answer, one or more learning situation-specific video contents for each question printed on the workbook, and an answer for each question. And a video content area including answer description contents for at least one learning situation, wherein the question code is connected to the question description video content and the answer code is connected to the answer description video content.

According to an exemplary embodiment of the present invention, the video content package includes a situation determination motion corresponding to each learning situation according to a hierarchical structure of a study identification code, a problem identification code, and an answer identification code constituting the question code and the answer code. The problem description video content and the answer description video content according to one or more learning situations may be hierarchically structured.

4 is a diagram illustrating a process of printing a tutorial according to an embodiment of the present invention.

In more detail, Figure 4 illustrates a process of encoding and printing a problem code or answer code in the form of a code of a dot pattern on a character, a figure, or an image constituting a question or answer printed on a workbook. Those skilled in the art may refer to and / or modify this drawing 4 to infer various implementation methods (e.g., some steps may be omitted or the order may be changed) for the tutorial printing process. However, the present invention includes all the implementation methods inferred, and the technical features are not limited only to the implementation method shown in FIG.

Referring to FIG. 4, the print processing unit 210 illustrated in FIG. 2 allocates (or determines) a tutorial identification code that can uniquely identify the printed tutorial, and identifies a plurality of problems included in the tutorial. Assigns (or determines) a problem identification code that can be uniquely identified and, in the case of a question corresponding to the question assignment (or determined) problem identification code, which includes a multiple-choice answer, each of the multiple-choice answers of the problem is unique. Assigning (or determining) an answer identification code that can be easily identified (400), forming a problem code by combining the tutorial identification code and each problem identification code for each question displayed in the tutorial, In the case of a question that includes a multiple-choice answer, the answer code is formed by combining the tutorial identification code, the problem identification code, and the answer identification code. 405.

When a problem code and a solution code for each problem included in the learning are configured, the print processing unit 210 may include one or more of characters, figures, and images constituting each problem printed on the print media of the tutorial. Configure the problem print data for processing the problem code to be encoded in a pattern of dots in the print data, and when the question includes a multiple-choice answer, the answer is included in at least one print data of characters, figures, and images constituting the answer. After constructing the answer print data for processing the code to be encoded into a pattern of dots, the print system including the question print data and the answer print data is provided to the printing system, whereby the characters and graphics constituting the problem printed on the tutorial are formed. A question pattern that combines the tutorial identification code and the problem identification code into an image If the problem of the tutorial includes a multiple-choice answer, the learning identification code, the problem identification code, and the answer identification code for identifying each multiple-choice answer are included in the characters, figures, and images constituting the multiple-choice answer. The combined answer code is encoded into a code of a dot pattern and processed to be printed (410).

If the question code is printed by encoding a dot pattern in a question of the tutorial, and the answer code is printed by encoding a dot pattern in a multiple-choice answer of the question (415), the print processing means 210 is the figure 2 The question code and answer code are provided to the content constituting means 205 shown in FIG.

5 is a diagram illustrating a video content package configuration process according to an embodiment of the present invention.

In more detail, FIG. 5 illustrates a process of constructing a video content package shown in FIG. 3 by connecting a problem code and problem description video contents configured through the process illustrated in FIG. 4, and connecting an answer code and answer description contents. As illustrated, those of ordinary skill in the art to which the present invention pertains may refer to and / or modify this drawing 5 to implement various methods (e.g., some steps may be omitted, or It will be possible to infer an implementation method in which the order is changed, but the present invention includes all the implementation methods inferred above, and the technical features are not limited only to the implementation method shown in FIG.

Referring to FIG. 5, the content structuring means 205 shown in FIG. 2 checks the problem description video content and the answer description video content connected to the question / answer of the tutorial from the content D / B 215 (500). Connect the problem code configured through the process shown in FIG. 4, the situation determination motion code corresponding to each learning situation for the problem, and one or more problem description video contents for each learning situation, the answer code and each learning for the answer. A video content package shown in FIG. 3 is configured by connecting a context determination motion code corresponding to a situation and one or more answer explanation contents for each learning situation (505).

If the video package is configured (510), the content processing means 200 shown in FIG. 2 processes the video content package to be stored in a portable storage medium provided in the portable video player 220 (515). .

According to an embodiment of the present invention, the content processing means 200 preferably records the video content package on a removable storage medium detachable to the portable video player 220, in which case the mobile storage. The medium is provided to a student who purchases the workbook and has a portable video player 220 that is removable from the removable storage medium.

According to an exemplary embodiment of the present invention, the content processing means 200 communicates with the portable video player 220 through a host terminal (or a network), and connects the portable video content package to the portable through the communication connection. It is preferable to download and record to a removable storage medium provided in the video player 220.

6 is a diagram illustrating a process of recognizing a bit code from a dot pattern constituting a question or answer printed on a workbook according to an embodiment of the present invention.

In more detail, FIG. 6 includes a question code or an answer code from a dot pattern encoded in a character, a figure, or an image constituting a question or answer printed on a workbook in the dot pattern recognition apparatus 225 shown in FIG. A process of recognizing a bit code and providing the same to a portable video reproducing apparatus 220 is illustrated by one of ordinary skill in the art to which the present invention pertains. While various implementation methods (e.g., some steps may have been omitted or reordered) may be inferred for the process, the present invention includes all the implementation methods inferred, as shown in FIG. The technical features are not limited only by the implementation method.

Referring to FIG. 6, the dot pattern recognition apparatus 225 illustrated in FIG. 1 obtains image data corresponding to a character, a figure, and an image constituting a question or answer printed on a workbook through an image acquisition module, and obtains motion. The drag motion of the dot pattern recognition device 225 while the image data is acquired through the sensor module is recognized (600).

When the image data is obtained, the dot pattern recognition apparatus 225 recognizes / reads a dot pattern constituting the image data through a preset coordinate system to recognize a bit code including a question code or an answer code (605). A preferred embodiment in which the dot pattern recognition apparatus 225 recognizes / reads a dot pattern constituting the image data through a preset coordinate system will be described with reference to FIGS. 10 to 16.

If a bit code including a question code or an answer code is recognized from image data corresponding to a character, a figure, or an image constituting a question or answer printed in the tutorial (610), the dot pattern recognition apparatus 225 may recognize the bit code. While the code is recognized, the situation determination motion code matching with the drag motion recognized by the motion sensor module is checked (or determined) (615).

If the redemption judging motion code is not confirmed (or determined) (620), the dot pattern recognition device 225 connects (or checks whether or not) the communication channel with the portable video player 220 (625). In operation 630, the video identification information including the bit code is configured and transmitted to the portable video player 220 through the communication channel.

If the redemption determination motion code is confirmed (or determined) (620), the dot pattern recognition device 225 combines the recognized bit code and the situation determination motion code to form video identification information (635). After connecting (or checking whether the communication channel is connected to) the portable video player 220 and the communication channel (640), the video identification information is transmitted to the portable video player 220 through the communication channel (645). .

7 is a block diagram of a portable video player 700 according to an embodiment of the present invention.

In more detail, FIG. 7 receives video identification information combining a bit code and a situation determination motion code corresponding to any one of a problem code or an answer code from a dot pattern recognition device shown in FIG. One or more problem description video content corresponding to the bit code included in the video identification information from the video content package stored in the video content or the answer description video content corresponding to the situation determination motion code included in the video identification information. Or depicts the configuration of a portable video playback device 700 for extracting and playing the answer description video content, if one of ordinary skill in the art to which the present invention pertains, referring to and / or modified to the present figure 7 Various implementation methods (for example, part of the configuration of the video player 700) The implementation method may be inferred, or subdivided, or combined), but the present invention includes all the implementation methods inferred above, and its technical features are limited only by the implementation method shown in FIG. Not.

According to the exemplary embodiment of the present invention, the point portable video player 700 preferably includes a portable PMP.

Referring to FIG. 7, the portable video player 700 includes a control unit 705 for controlling an operation related to playing video content, and a memory unit for storing program codes and data (eg, codecs) necessary for playing the video. 765, a screen output unit 745 for outputting video data of the reproduced moving image, a sound output unit 750 for outputting audio data of the reproduced moving image, and an operation unit 755 for manipulating the reproduction of the moving image. And a media storage unit 770 for interfacing with the portable video player 700 and a portable storage medium 775 for storing the video content to be played and the portable storage medium 775. Further comprising a communication processor 760 for communicating with the dot pattern recognition apparatus shown in FIG.

The controller 705 includes a processor and an execution memory that includes a CPU / MPU in hardware, and extracts video data and audio data by decoding video content stored in the removable storage medium 775 by software. A recording medium on which program data for outputting video data extracted from video content through the screen output unit 745 and outputting audio data extracted from the video content through the sound output unit 750 is loaded and executed. Accordingly, video data and audio data are extracted by decoding the video content stored in the removable storage medium 775, and the video data extracted from the video content is output through the screen output unit 745. Output audio data extracted from the sound through the sound output unit 750. It is characterized by comprising a function of the city, described by the program code configured within the controller 705).

The controller 705 decodes the video content to extract video data and audio data, outputs the video data extracted from the video content through the screen output unit 745, and outputs the audio data extracted from the video content. As a generic term for a nonvolatile memory that stores program codes output through the sound output unit 750 and various data (eg, codecs) necessary for reproducing the moving picture, the portable video reproducing apparatus 700 may be embedded. .

The screen output unit 745 includes a screen output device such as an LCD and a program code for driving the screen output device, and the video data of the video content played through the control unit 705 to the screen output device. It is characterized by outputting.

The sound output unit 750 is configured to include a sound output device such as a speaker and a program code for generating a sound signal to be output through the sound output device, the audio of the video content played through the control unit 705 And outputs data to the sound output device.

The operation unit 755 is a generic term for a function configuration unit that provides a video playback operation such as playing, stopping, and pausing the video content, and a user operation necessary for playing the video, such as a video selection operation for selecting a video to be played. A key input unit detecting one or more key buttons and key input data input through the key buttons, a touch pad associated with the screen output unit 745 and a touch pad detecting pointer input data input through the touch pad. It comprises an input unit.

The media interface unit 770 is an interface for connecting the portable storage medium 775 for storing the video content to be played through the portable video player 700 with the controller 705. It is preferable to include a memory insertion module corresponding to the memory interface method.

The removable storage medium 775 is a large capacity nonvolatile memory embedded in the portable video player 700 or detached from the portable video player 700 through the media interface 770. The storage medium 775 preferably includes an SD memory, and the type of the removable storage medium 775 and the configuration of the media interface 770 according to the intention of the person skilled in the art can be variously modified.

The communication processor 760 may be short-range wired communication such as universal serial bus (USB) communication or RS-232c communication, or Bluetooth, Wi-Fi, ultra wideband (UWB), or radio frequency (RF) communication. Short-range wireless communication such as short-range wireless communication, such as short-range communication of the near-field communication using the portable video playback device 700 and the dot pattern recognition device (or a host terminal) located in the near field, and the dot pattern Provides a communication function for receiving video identification information combining a bit code printed in a text pattern, a figure, and an image printed on a workbook as a pattern of dots from a recognition device and a situation determination motion code corresponding to a drag motion of the dot pattern recognition device. The present invention is not limited by the communication scheme and protocol configuration of the communication processing unit 760.

Referring to FIG. 7, the controller 705 of the portable video reproducing apparatus 700 is a character, figure, or image printed on the workbook from the dot pattern recognition apparatus illustrated in FIG. 1 through the communication processor 760. An information receiver 710 for receiving video identification information combining a bit code printed in a pattern of a dot and a situation determination motion code corresponding to a drag motion of the dot pattern recognition apparatus, and a bit code included in the video identification information. A code checking unit 715 for checking a problem code or an answer code corresponding to the code, and identifying a situation determination motion code corresponding to a drag motion of the dot pattern recognition device, and a video content package stored in the removable storage medium 775. One or more problem description video content or answer description video content associated with the question code or answer code from the situation determination motion code. And a content confirming unit 720 for identifying / extracting the video description or the answer explanation video content corresponding to the problem, and a content reproducing unit 725 for reproducing the checked video content.

In the dot pattern recognition apparatus shown in FIG. 1, the communication processor 760 corresponds to a situation determination motion code corresponding to the drag motion of the dot pattern recognition apparatus printed in a pattern of dots on a character, a figure, and an image printed on the workbook. When transmitting the video identification information combining the, the information receiving unit 710 through the communication processing unit 760 the dot printed in the pattern of the dot on the character, figure, image printed on the tutorial from the dot pattern recognition device And receiving video identification information in which the situation determination motion code corresponding to the drag motion of the pattern recognition apparatus is combined.

When the video identification information is received, the code checking unit 715 analyzes the bit code included in the video identification information, a problem code including a tutorial identification code and a problem identification code, or a tutorial identification code and a problem identification code; The answer code including the answer identification code is checked, and the situation determination motion code corresponding to the drag motion of the dot pattern recognition device while the question code or the answer code is recognized.

If the problem code is identified from the bit code included in the video identification information, the content checking unit 720 may determine one or more problem description video contents corresponding to the problem code from the video content package stored in the removable storage medium 775. Check it.

If the situation identification motion code is included in the video identification information, the content verification unit 720 may describe the problem description video content corresponding to the situation determination motion code among one or more problem description video contents identified in response to the problem code. Check / extract

Alternatively, when the answer code is identified from the bit code included in the video identification information, the content verification unit 720 corresponds to a problem code included in the answer code from the video content package stored in the removable storage medium 775. Checking the one or more problem description video content and the answer description video content corresponding to the answer code, and confirming the problem description video content by checking the problem code included in the answer code according to the intention of the skilled person.

If the context identification motion code is included in the video identification information, the content checking unit 720 may answer the video description content corresponding to the situation determination motion code among one or more answer description video contents identified in response to the answer code. Check / extract

Referring to FIG. 7, the controller 705 of the portable video player 700 may play content description history information of the problem description video content when the content description unit 725 plays the problem description video content. It is characterized in that it further comprises an information storage unit 730 configured to store in the removable storage medium 775.

When the content description unit 725 plays the problem description video content, the information storage unit 730 displays a play date and time (eg, a workbook identification code and a problem identification code) at which the problem description video content is played. It is characterized in that the configuration of the content playback history to be stored in the removable storage medium 775, it is possible to store in the memory unit 765 provided in the portable video player 700 according to the intention of those skilled in the art. .

Referring to FIG. 7, when the content playing history information is stored, the controller 705 of the portable video player 700 reads the content playing history information and includes a problem code and a problem explanation video included in the answer code. A history check unit 735 for checking whether a content has been played within a predetermined time period or a problem description video content associated with another problem code other than the problem description video content corresponding to the answer code is included in the answer code; A problem description video content associated with a problem code that has been played within a predetermined time period or another problem description video content is played before the answer code is confirmed, the answer to the answer code connected to the answer code through the content playback unit 725 Process the description video content to be played and include it in the answer code If the answer code is confirmed after a predetermined time or a problem description video content associated with a problem code is played, the content reproducing unit 725 corresponds to the answer code. And a playback processing unit 740 for processing to play the answer explanation video content associated with the answer code after playing the problem description video content associated with the problem code.

When the content playback history information of the problem description video content is stored according to the problem description video content playback, the history check unit 735 checks and extracts the answer description video content by the content checking unit 720. Problem description video content associated with the tutorial identification code and the problem identification code included in the answer code by reading the content playback history information. The video description has been played within a predetermined time period or the problem description video content associated with another tutorial identification code and the problem identification code. It is determined whether the answer code has been confirmed before playing.

If the content description unit 720 checks / extracts the answer explanation video content associated with the answer code, the problem description video content associated with the question code corresponding to the workbook identification code and the problem identification code included in the answer code is described. If it is played within a predetermined time, it is not necessary to play the problem description video content before playing the answer explanation video content corresponding to the answer code, but if the problem description video content has been played before a predetermined time, the answer code It is desirable to play the problem description video content before playing the corresponding answer explanation video content.

Alternatively, when checking / extracting the answer explanation video content associated with the answer code by the content checking unit 720, the answer code after the question description video content connected with another question code other than the question code corresponding to the answer code is played. Is confirmed, it is preferable to play the problem description video content before playing the answer explanation video content corresponding to the answer code, and the problem description video content played just before the answer code is confirmed corresponds to the answer code. If the problem description video content associated with the question code is played, it is not necessary to play the problem description video content before playing the answer explanation video content corresponding to the answer code.

Therefore, if the problem description video content connected to the problem code included in the answer code by the history checking unit 735 is played within a predetermined time or other problem description video content is checked before the answer code is checked. The reproduction processing unit 740 processes the answer explanation video content associated with the answer code through the content reproduction unit 725.

On the other hand, if the problem description video content connected to the problem code included in the answer code by the history checking unit 735 is played before a predetermined time or another problem description video content is played, the answer code is confirmed. The playback processor 740 plays the problem description video content associated with the question code corresponding to the answer code through the content playback unit 725, and then plays the answer description video content associated with the answer code.

8 is a diagram illustrating a process of playing video content corresponding to a question or answer printed on a workbook according to an exemplary embodiment of the present invention.

In more detail, FIG. 8 shows the video identification information combining the bit code corresponding to the question code or the answer code and the situation determination motion code from the dot pattern recognition device shown in FIG. As the portable video player 700 illustrates a process of playing the video description or the answer explanation video content corresponding to the bit code and the situation determination motion code, a person having ordinary knowledge in the technical field to which the present invention belongs. However, various implementation methods (e.g., some steps may be omitted or the order may be changed) may be inferred by referring to and / or modifying the video content 8, but the present invention may be inferred from the above description. It includes all implementation methods inferred, and the technical features are limited only by the implementation method shown in FIG. Shall not.

Referring to FIG. 8, when the video identification information combining the bit code corresponding to the question code or the answer code and the situation determination motion code is received from the dot pattern recognition device illustrated in FIG. 1, the portable video playback apparatus 700 is provided. ) Reads the video identification information to check the redemption judgment motion code corresponding to the drag motion of the dot pattern recognition apparatus (800), and if the situation determination motion code is confirmed (805), it is included in the video identification information. The problem code or the answer code is read by reading the bit code (810).

If a problem code is identified from the bit code included in the video identification information (815), the portable video player 700 describes one or more problems associated with the problem code from the video content package stored in the removable storage medium 775. After confirming the problem description video content connected to the situation determination motion code among the video content (820), and playing the identified problem description video content (825), the content playback history information for playing the problem description video content is configured. And store (830).

On the other hand, if the answer code is identified from the bit code included in the video identification information (815), the portable video player 700 reads the content playback history information and the problem code corresponding to the answer code within a predetermined time period The problem description video content associated with the answer code is immediately determined before the answer code is checked according to the intention of the person skilled in the art. It is possible to check if it has been played.

If it is confirmed that the problem description video content associated with the question code corresponding to the answer code is played within a predetermined time period (840), the portable video player 700 from the removable storage medium 775 The answer explanation video content associated with the situation determination motion code among the answer explanation video content associated with the answer code is checked (845), and the identified answer description video content is played (850).

On the other hand, the confirmation result confirms that the problem description video content associated with the question code corresponding to the answer code has been played before a predetermined time (840), or immediately before the answer code is checked according to the intention of the person skilled in the art. Problem description associated with a code corresponding to a code Description of a problem other than video content When it is confirmed that video content is played, the portable video player 700 describes a problem video associated with the problem code from the removable storage medium 775. After checking the answer explanation video content associated with the content and the answer code and the situation determination motion code (855), after playing the problem description video content, play the answer explanation video content (860), and play the problem description video content. Configure and store content playback history information for 830).

9 is a diagram illustrating a process of playing video content corresponding to a question or answer printed on a workbook according to another exemplary embodiment of the present invention.

In more detail, FIG. 9 illustrates a problem description video content or answer explanation video corresponding to a bit code included in the video identification information when the situation determination motion code is not included in the video identification information through the process illustrated in FIG. 8. As a process of reproducing content, a person of ordinary skill in the art to which the present invention pertains may refer to and / or modify this drawing 9 to implement various methods (e.g., some steps) for the process of reproducing the video content. May be omitted or the order may be changed), but the present invention includes all the implementation methods inferred above, and the technical features are not limited to the implementation method shown in FIG.

Referring to FIG. 9, when the situation determination motion code is not included in the video identification information through the process illustrated in FIG. 8, the portable video player 700 reads the bit code included in the video identification information. Check the problem code or answer code (900).

If the problem code is identified from the bit code included in the video identification information (905), the portable video player 700 untitled video content associated with the problem code from the video content package stored in the removable storage medium (775) After confirming (910), playing the identified problem description video content (915), and configuring and storing content reproduction history information for playing the problem description video content (920).

On the other hand, if the answer code is confirmed from the bit code included in the video identification information (905), the portable video player 700 reads the content playback history information and the problem code corresponding to the answer code within a predetermined time and The connected problem description video content is played (925), and according to the intention of the skilled person, immediately before the answer code is checked, the problem description video content other than the problem description video content associated with the answer code is played. It is possible to check if it is.

If it is confirmed that the problem description video content associated with the question code corresponding to the answer code is set within a predetermined time period (930), or the portable video player 700 is the portable storage medium 775 The answer explanation video content associated with the answer code is identified from (935), and the identified answer description video content is played (940).

On the other hand, as a result of the check, it is confirmed that a problem description video content associated with the question code corresponding to the answer code is set before a predetermined time (930), or immediately before the answer code is checked according to the intention of the person skilled in the art. Problem description associated with a code corresponding to a code Description of a problem other than video content When it is confirmed that video content is played, the portable video player 700 describes a problem video associated with the problem code from the removable storage medium 775. After checking the answer explanation video content associated with the content and the answer code (945), after playing the problem description video content, the answer description video content is played (950), and the content playback history for the problem description video content playback is performed. The information is configured and stored (920).

FIG. 10 is a diagram showing a dot pattern structure in which a bit code is encoded in print data of a tutorial book according to an embodiment of the present invention.

In more detail, FIG. 10 illustrates a dot pattern structure in which a bit code is encoded in at least one of print data of characters, figures, and images printed in a print area on a print medium constituting a tutorial. Specifically, FIG. Point pattern on a circular coordinate system with the center point as the center point of four points including three points arranged at equally spaced intervals and one point disposed at equal intervals in one direction perpendicular to a straight line direction with respect to the center point It shows a dot pattern structure that combines bit codes through analysis.

Those skilled in the art will be able to infer various implementation methods for a dot pattern structure in which a bit code is encoded in the print data by referring to and / or modifying the drawing 10. The invention includes all the implementation methods inferred above, and the technical features are not limited only to the implementation method shown in FIG. That is, the dot pattern structure that encodes a bit code in at least one print data among characters, figures, and images printed in the print area on the print medium constituting the tutorial is not limited to the dot pattern structure shown in FIG. It is apparent that various modifications can be made according to the intention of those skilled in the art.

Images and characters printed on the print media constituting the tutorial are made up of a number of points, and the shape and color of the object to be printed are determined by the color and density of each point. That is, whether the print data before being printed on the print medium is bitmap data, vector data, font data, or the like, the print data at the time of being printed on the print medium has a distribution of dots. At this time, the quality of the printed matter on which the printed object is printed is represented by the number of dots that can be displayed in the unit grid, and as more points are distributed in the unit grid, the quality of the printed matter is considered to be improved.

The present invention is to determine the point pattern using a circular coordinate system for the distribution of the points for determining the shape and color of the object to be printed on the print medium as described above, by combining and generating a bit code by analyzing the point pattern, A center point and a reference radius of the circular coordinate system, which are reference points of the point pattern analysis for combining the bit codes, are determined.

Referring to (a) of FIG. 10, the center point of the circular coordinate system includes three points arranged at equal intervals preset in a straight line direction and one direction orthogonal to the straight line direction based on a center point among the three points. It is determined to be the center point on four points including one point arranged at the same interval as the three points.

Here, it is preferable that the spacing of the three points arranged in the straight direction includes a spacing different from the spacing of the general points arranged in the lattice structure of the general area which does not combine bit codes.

For example, if the spacing of general points arranged in a grid structure of a general area without combining bit codes is distributed in units of 0.01 mm, the spacing of the three points arranged in the straight direction is different from that of the general area, such as 0.03 mm. It is preferably arranged at intervals.

Referring to (b) of FIG. 10, when the center point of the circular coordinate system is determined as described above, the reference radius of the circular coordinate system is equal to an interval between three points arranged in the straight direction or a center point of the three points. It is determined by the interval between points orthogonal to one direction.

That is, when the center point of the circular coordinate system is determined as described above, the spacing of the three points arranged in the straight direction, and the spacing between the points orthogonal to one of the three points orthogonal to one direction maintain the equal spacing. When the equal spacing of the three points centering on the center point is determined as the reference radius r0.

Here, the reference radius r0 is preferably determined dynamically according to the pixel resolution of the image acquisition module for acquiring the print object, and when the minimum resolution condition for the pixel resolution of the image acquisition module is set, the reference radius r0 Is determined to be greater than or equal to the minimum radius for analyzing the point distribution pattern under the minimum resolution condition.

According to the method of the present invention, the size of the four points that determine the center point and the reference radius of the circular coordinate system is preferably the same, the reference to the four points to expand the bit size through the point pattern analysis It is desirable to determine the spot size.

According to the present invention, when the reference point size of the circular coordinate system is obtained from a print object printed on the print medium through a predetermined image acquisition module, 4 constituting the center point of the circular coordinate system on the obtained print object and the reference radius It is determined by the number of pixels occupied by the three points, the reference point size of the circular coordinate system is dynamically determined according to the performance and magnification of the image acquisition module.

For example, the reference point size of the circular coordinate system acquired by the low magnification image acquisition module may be determined to be 2 to 3 pixels, and the reference point size of the circular coordinate system obtained by the high magnification image acquisition module is 5 to 7 pixels. Can be determined.

If the reference point size is 4 to 6 pixels and the size of the specific point 1 is 1 to 3 pixels, it may be determined that the point 1 is smaller than the size of the reference point, and the size of the other point 2 is If it is 7 to 8 pixels, it may be determined that the point 2 is larger than the reference point size.

When the circular coordinate system center point and the reference radius of the area for combining the bit codes on the print object are determined as described above, the reference line for generating the bit code is determined based on the circular coordinate center point and the reference radius. Here, the reference line is used for dot pattern analysis and is not displayed on the actual print object.

Referring to (c) of FIG. 10, a reference line for combining and generating a bit code on the circular coordinate system is determined from one or more straight lines connecting a center point on the circular coordinate system and a point for determining the reference radius.

That is, a total of three straight lines connecting the center point and the point for determining the reference radius on the circular coordinate system may exist, and includes the center point and the reference radius when orthogonal to the three points but includes a direction in which the point is not located. There may be a total of four straight lines connecting the determining points, and the reference line may be determined by any one of the 3 (+1) straight lines, or by one or more straight lines among the 3 (+1) straight lines. do.

According to the implementation method shown in (c) of FIG. 10, a reference line for combining and generating a bit code on the circular coordinate system is a direction of a point orthogonal to three points arranged in a straight direction to determine the center point. This is determined by one baseline.

According to the present invention, the code recognition unit of the dot pattern recognition apparatus shown in FIG. 1 determines a center point, a reference radius, and a reference line of the circular coordinate system from the image data acquired through the image acquisition module, and a radius r1 from the center point. A splitting angle (1) θ1 is formed which constitutes a virtual circle 1 including (r1> r0), and divides the virtual circle 1 at an equal angle based on the reference line to determine n1 divided areas. In this way, n1 division lines corresponding to the n1 division regions are determined. Here, the dividing line is used for dot pattern analysis and is not displayed on the actual print object.

Here, the radius r1 of the virtual circle 1 is preferably determined dynamically according to the pixel resolution of the image acquisition module for acquiring the print object under the condition of “r1> r0”, and the pixel resolution of the image acquisition module When the minimum resolution condition for is set, the radius r1 is determined to be greater than or equal to the minimum radius for analyzing the point distribution pattern at the minimum resolution condition.

In addition, the dividing angle (1) θ1 of the virtual circle (1) is dynamically in accordance with the radius r1 (or r1-r0) of the virtual circle (1) and the pixel resolution of the image acquisition module obtained the print object. Preferably, it is determined that the minimum resolution condition for the pixel resolution of the image acquisition module is set, and if the radius r1 includes more than a radius for analyzing the point distribution pattern under the minimum resolution condition, the division angle (1). ) θ1 is determined to be equal to or greater than the minimum angle at which the point distribution pattern can be analyzed under the minimum resolution condition.

According to the implementation method shown in (d) of FIG. 10, the dividing angle (1) θ1 of the virtual circle 1 is divided into eight (n1 = 8) of the virtual circle 1 based on the reference line. The angle of 45 degrees divided by the area is determined as the dividing angle (1) θ1.

When n1 dividing lines are determined through the radius r1 of the virtual circle 1 and the dividing angle (1) θ1, the code recognizing unit is configured on the n1 dividing lines to combine and generate a bit code on the circular coordinate system. Check the distribution of the three points of the r1 position, the (r1 +? r) position, and the (r1-? r) position, and read the distribution of the three points located on each dividing line to read 3 bits of each dividing line. After configuring the bit value of, the bit code having the bit value within (3 * n1) is formed by combining the bit values of each of the n1 dividing lines, and? R satisfies the condition of? R ≠ r0. It is preferable.

According to the implementation method shown in (e) of FIG. 10, it is preferable that? R is dynamically determined according to the pixel resolution of the image acquisition module that acquires the print object under the condition of? Rr0. When the minimum resolution condition for the pixel resolution of the image acquisition module is set, the reference radius? R is determined to be greater than or equal to a minimum radius capable of analyzing a point distribution pattern under the minimum resolution condition.

According to the present invention, the code recognizing unit, in order to configure the bit value size of each dividing line into 4 bits, the position (r1 +? Θ1) or (r1 +? Θ1) on the virtual circle 1 based on the r1 positions on the n1 dividing lines. r1-? θ1) confirms the distribution of one point, the distribution of three points located on each dividing line, and one point located on the imaginary circle 1 based on the radius r1. After reading the distribution of and constructing a 4-bit bit value for each dividing line, the bit code having a bit value within (4 * n1) is formed by combining the bit values per n1 dividing line, and? Θ1 It is preferable to satisfy "? θ1 <? 1".

According to the present invention, the code recognizing unit (r1 +? Θ1) and (r1 +? Θ1) position on the virtual circle 1 with respect to the r1 positions on the n1 dividing lines to configure the bit value size of each dividing line into 5 bits. r1-? θ1) confirms the distribution of two points, the distribution of three points located on each dividing line, and the two points located on the imaginary circle 1 based on the radius r1. After reading the distribution of and constructing a bit value of 5 bits for each division line, the bit values having a bit value within (5 * n1) are formed by combining the bit values for each of the n1 division lines, and? Θ1 It is preferable to satisfy the condition of "(2 *? Θ1) <? 1".

If the reference point size of the circular coordinate system is determined, the size of the three points of the position r1 on the n1 dividing line, the position (r1 +? R) and the position (r1-? R) based on the reference point size When relatively small, equal, or small, the bit code of the 3-bit value may be further extended in the 3-bit value according to the relative size of three points on the dividing line based on the reference point size.

For example, if there are three points on the dividing line and / or no bits of " 1 " or " 0 " for any one of the three bits are determined, then the point size of any of the three points is It can be expanded to 2 bits each, such as "11" if it is smaller than the reference point size, "10" if it is equal, "01" if it is larger, and "00" if it is not. As a result, the 3-bit value for the three points is It can be extended to 6-bit values.

Alternatively, the size of the reference point of the circular coordinate system is determined, and the size of three points on the n1 dividing lines and one point of the position (r1 +? Θ1) or (r1-? Θ1) on the virtual circle 1. If the size of R is relatively smaller than, equal to, or smaller than the reference point size, the 4-bit value bit code is divided into three points on the dividing line and the virtual circle 1 based on the reference point size. Depending on the relative size of one point it can be further extended in the 4-bit value.

For example, if there are three points on the dividing line and one point on the virtual circle 1 and / or a bit of "1" or "0" for any one of four bits is determined, The point size of any of the four points can be expanded to 2 bits each, such as "11" if it is smaller than the reference point size, "10" if it is equal, "01" if it is larger, or "00" if it is not. The 4-bit value for the four points can be extended to an 8-bit value.

Alternatively, the reference point size of the circular coordinate system is determined, and the size of three points on the n1 dividing line and the size of two points on the virtual circle 1 are relatively small based on the reference point size, If equal or smaller, the 5-bit value's bit code is further extended in the 4-bit value according to the relative sizes of three points on the dividing line and two points on the virtual circle 1 based on the reference point size. Can be.

For example, if there are three points on the dividing line and two points on the virtual circle 1 and / or a bit of "1" or "0" for any one of 5 bits is determined, The point size of any of the five points can be extended to 2 bits each, such as "11" if it is smaller than the reference point size, "10" if it is equal, "01" if it is larger, and "00" if it is not. The 5-bit value for the five points can be extended to a 10-bit value.

According to the present invention, the code recognition unit includes a radius r2 (r2> r1) from the center point in order to combine and generate a bit code in addition to the bit code for the virtual circle 1 having the radius r1 from the center point. A virtual circle 2 is formed, and the dividing angle 2 θ2 (θ2 <θ1) is determined by dividing the virtual circle 2 at equal angles based on the reference line to determine n2 divided regions. N2 dividing lines corresponding to the n2 divided regions are determined.

Here, the radius r2 of the virtual circle (2) is preferably determined dynamically according to the pixel resolution of the image acquisition module for acquiring the print object under the condition of "r2> r1", the pixel resolution of the image acquisition module When the minimum resolution condition for is set, the radius r2 is determined to be greater than or equal to the minimum radius for analyzing the point distribution pattern at the minimum resolution condition.

In addition, the dividing angle (2) θ2 of the virtual circle 2 is obtained by obtaining a radius r2 (or r2-r1) of the virtual circle 2 and the print object under the condition of "θ2 <θ1" Preferably, the resolution is dynamically determined according to the pixel resolution of the module. The minimum resolution condition for the pixel resolution of the image acquisition module is set, and the radius r2 is equal to or greater than a radius at which the point distribution pattern can be analyzed at the minimum resolution condition. If included, the split angle 2 θ2 is determined to be equal to or greater than the minimum angle at which the point distribution pattern can be analyzed under the minimum resolution condition.

According to the embodiment shown in FIG. 10 (f), the dividing angle 2 θ2 of the virtual circle 2 divides the virtual circle 2 into 16 pieces (n2 = 16) based on the reference line. The angle of 22.5 degrees divided by the area is determined as the dividing angle (2) θ2.

When n2 dividing lines are determined through the radius r2 of the virtual circle 2 and the dividing angle (2) θ2, the code recognizing unit combines and generates the n2 dividing lines to combine and generate a bit code on the circular coordinate system. Check the distribution of the r2 position on the image, the three points of the (r2 +? R) position and the (r2-? R) position, and read the distribution of the three points on each dividing line. After the bit value of the bit is configured, a bit code having a bit value within (3 * n2) is formed by combining the bit values of the n2 dividing lines, where? R is a condition of "? R ≠ r0" and " It is preferable to satisfy? r <(r2-r1) ".

According to the present invention, the code recognizing unit, in order to configure the bit value size of each dividing line into 4 bits, the position (r2 +? Θ2) on the virtual circle 2 or (r2 +? Θ2) on the n2 dividing lines, or ( r2-? θ2) Check the distribution of the two points of the position, the distribution of three points located on each dividing line, and the two points located on the imaginary circle 2 based on the radius r2 After reading the distribution of and constructing a 4-bit bit value for each dividing line, and combining the n2 dividing line bit values to form a bit code having a bit value within (4 * n2),? It is preferable to satisfy the condition of "? θ2 <? 2" and the condition of "? θ2 <=? θ1".

According to the present invention, the code recognizing unit, in order to configure the bit value size of each dividing line into 5 bits, the position of (r2 +? Θ2) on the virtual circle 2 and (r2) on the n2 dividing lines, and ( r2-? θ2) Check the distribution of the two points of the position, the distribution of three points located on each dividing line, and the two points located on the imaginary circle 2 based on the radius r2 After reading the distribution of and constructing a bit value of 5 bits for each dividing line, the bit code having a bit value within (5 * n2) is formed by combining the bit values for each of the n2 dividing lines, and? Θ2 is It is preferable to satisfy the condition of "(2 *? Θ2) <? 2".

If the reference point size of the circular coordinate system is determined, the size of the three points of the r2 position on the n2 dividing lines, the position (r2 +? R) and (r2-? R) position based on the reference point size When relatively small, equal, or small, the bit code of the 3-bit value may be further extended in the 3-bit value according to the relative size of three points on the dividing line based on the reference point size.

For example, if there are three points on the dividing line and / or no bit of “1” or “0” for any one of the three bits is determined, then the point size of any of the three points is It can be expanded to 2 bits each, such as “11” if it is smaller than the reference point size, “10” if it is equal, “01” if it is larger, and “00” if it is larger. As a result, the 3-bit value for the three points is It can be extended to 6-bit values.

Alternatively, the reference point size of the circular coordinate system is determined, and the size of three points on the n2 dividing lines, and two points of (r2 +? Θ2) position or (r2-? Θ2) position on the virtual circle 2. If the size of R is relatively smaller than, equal to, or smaller than the reference point size, the 4-bit value bit code includes three points on the dividing line and the virtual circle (2) based on the reference point size. It can be further extended in the 4-bit value according to the relative size of the two points on the image.

For example, if there are three points on the dividing line and two points on the virtual circle 2 and / or a bit of “1” or “0” for any one of four bits is determined, The point size of any of the four points can be expanded to 2 bits each, such as “11” if it is smaller than the reference point size, “10” if it is equal, “01” if it is larger, or “00” if it is not. The 4-bit value for the four points can be extended to an 8-bit value.

Alternatively, the reference point size of the circular coordinate system is determined, and the size of three points on the n2 dividing lines and the size of two points on the virtual circle 2 are relatively small based on the reference point size, If equal or smaller, the 5-bit value's bit code is further extended in the 4-bit value according to the relative sizes of three points on the dividing line and two points on the virtual circle 2 based on the reference point size. Can be.

For example, if there are three points on the dividing line and two points on the virtual circle 2 and / or a bit of “1” or “0” for any one of 5 bits is determined, The point size of any of the five points can be extended to 2 bits each, such as “11” if it is smaller than the reference point size, “10” if it is equal, “01” if it is larger, or “00” if it is not. The 5-bit value for the five points can be extended to a 10-bit value.

According to the present invention, the process of further combining the bit code for the virtual circle 2 including the radius r2 with the bit code for the virtual circle 1 including the radius r1 from the center point is a virtual circle (N, N>). It is desirable to repeat until 2), where it is evident that the " N " of the virtual circle N can be extended by the required number corresponding to the required bit code size.

11 illustrates a bit code structure generated through dot pattern analysis according to an embodiment of the present invention.

In more detail, FIG. 11 shows three positions of the position r1 on the dividing line corresponding to the reference line of the virtual circle 1 shown in FIG. 10, the position (r1 +? R) and the position (r1-? R) As an example of a bit code structure corresponding to a 3-bit value generated from a distribution, one of ordinary skill in the art may refer to and / or modify this drawing 11 to generate the dot pattern analysis. Various implementation methods for the bit code structure may be inferred, but the present invention includes all the implementation methods inferred above, and the technical features are not limited to the implementation method shown in FIG.

As shown in FIG. 10, a center point, a reference radius, and a reference line of a circular coordinate system for combining and generating bit codes from the image data acquired through the image acquisition module are determined, and a radius r1 (r1> r0) is determined from the center point. Code for combining and generating a bit code through the circular coordinate system when the dividing angle (1) θ1 for dividing the virtual circle (1) and the virtual circle (1) including the same by the equal angle is determined The recognition unit identifies the (r1 +? R) position and the (r1-? R) position based on the r1 positions on the n1 dividing lines, and recognizes the r1 position, the (r1 +? R) position, and the (r1-? R) position. Check if the dot exists in.

Referring to the embodiment shown in FIG. 11, if a point exists at the position (r1-? R), the code recognition unit sets the least significant bit (LSB) to "1", and the (r1-?). r) if there is no point at the position, the least significant bit is set to "0"; if there is a point at the r1 position, the second least significant bit corresponding to the next higher bit of the least significant bit is set to "1", and the r1 position If the dot does not exist, the second significant bit is set to "0". If the dot exists at the position (r1 +? R), the third significant bit corresponding to the next higher bit of the second significant bit is set to "1". If a point does not exist at the position (r1 +? R), a 3-bit value is generated in which the third-order bit is set to "0".

Here, the bit positions for the r1 position, the (r1 +? R) position, and the (r1-? R) position may be modified according to the intention of those skilled in the art, and the method of determining the bit according to the presence or absence of each point may also be reversed. The present invention can be carried out to include all such modifications.

When there are eight dividing lines on the virtual circle 1, the code recognizing unit may generate a bit code of 24 bits or less in total by combining respective three-bit values for the eight dividing lines.

Here, the method of combining the 3 bit values may be sequentially combined in a clockwise direction (or counterclockwise) with respect to the reference line, and may be combined in various orders and combinations according to the intention of those skilled in the art.

For example, the code recognizing unit may first combine the 3-bit values for the odd-numbered dividing line in the clockwise direction with respect to the reference line, and then combine the 3-bit values for the remaining dividing lines in the counterclockwise direction. The bit value combination scheme includes all implementation methods that can be inferred by those skilled in the art.

According to the present invention, the bit code structure for the virtual circle 1 of the eight dividing lines shown in FIG. 11 is less than 48 bits depending on the relative size of each point based on the reference point size as shown in FIG. Can be extended to bit code.

12 is a diagram illustrating a bit code structure generated through dot pattern analysis according to another exemplary embodiment of the present invention.

In more detail, FIG. 12 shows three points of the position r1 on the dividing line corresponding to the reference line of the virtual circle 1 shown in FIG. 10, the position (r1 +? R) and position (r1-? R), The present invention illustrates a bit code structure corresponding to a 4-bit value generated from a distribution of four points including one point on a virtual circle 1 spaced by? Θ1 clockwise with respect to the reference line. Those skilled in the art will be able to infer various implementation methods for the bit code structure generated through the dot pattern analysis by referring to and / or modifying the drawing 12. It is made to include all the inferred implementation method, the technical features are not limited only to the implementation method shown in FIG.

As shown in FIG. 10, a center point, a reference radius, and a reference line of a circular coordinate system for combining and generating bit codes from the image data acquired through the image acquisition module are determined, and a radius r1 (r1> r0) is determined from the center point. Code for combining and generating a bit code through the circular coordinate system when the dividing angle (1) θ1 for dividing the virtual circle (1) and the virtual circle (1) including the same by the equal angle is determined The recognition unit identifies (r1 +? R) positions and (r1-? R) positions based on the r1 positions on the n1 dividing lines and (r1 +? Θ1) spaced apart by? Θ1 clockwise from the reference line. Then, it is checked whether a point exists at the r1 position, the (r1 +? R) position, the (r1-? R) position, and the (r1 +? Θ1) position.

Referring to the embodiment shown in FIG. 12, if a point exists at the position (r1-? R), the code recognition unit sets the least significant bit (LSB) to "1", and the (r1-?). r) if there is no point at the position, the least significant bit is set to "0"; if there is a point at the r1 position, the second least significant bit corresponding to the next higher bit of the least significant bit is set to "1", and the r1 position If the dot does not exist, the second significant bit is set to "0". If the dot exists at the position (r1 +? R), the third significant bit corresponding to the next higher bit of the second significant bit is set to "1". If a point does not exist at the position (r1 +? R), the third-order bit is set to "0". If a point exists at the position (r1 +? Θ1), the next higher bit of the third order bit is set. If the corresponding fourth order bit is "1" and no point exists at the position (r1 +? Θ1), the fourth ratio is set to the fourth order bit "0". It produces a value.

Here, the bit position for the r1 position, (r1 +? R) position, (r1-? R) position, (r1 +? Θ1) position may be modified according to the intention of the skilled person, and instead of the (r1 +? Θ1) position. The position of (r1-? Θ1) may be used, and the method of determining the bit according to the presence or absence of each point may also be reversed, and the present invention includes all the above-described embodiments.

When there are 8 dividing lines on the virtual circle 1, the code recognizing unit may generate a bit code of 32 bits or less in total by combining respective 4-bit values for the 8 dividing lines.

Here, the method of combining the 4-bit value may be sequentially combined in a clockwise direction (or counterclockwise) with respect to the reference line, and may be combined in various orders and combinations according to the intention of those skilled in the art.

For example, the code recognizing unit may first combine the 4-bit values for the even dividing line in the clockwise direction with respect to the reference line, and then combine the 4-bit values for the remaining dividing lines in the counterclockwise direction. The bit value combination scheme includes all implementation methods that can be inferred by those skilled in the art.

According to the present invention, the bit code structure for the virtual circle 1 of the eight dividing lines shown in FIG. 12 is within 64 bits depending on the relative size of each point with respect to the reference point size as shown in FIG. Can be extended to bit code.

FIG. 13 illustrates a bit code structure generated through dot pattern analysis according to another exemplary embodiment of the present invention.

In more detail, FIG. 13 shows three points of the position r1 on the dividing line corresponding to the reference line of the virtual circle 1 shown in FIG. 10, the position (r1 +? R) and position (r1-? R), Distribution of five points including one point on the imaginary circle 1 spaced by θ1 clockwise relative to the reference line and one point on the imaginary circle 1 spaced by θ1 counterclockwise. As an example of a bit code structure corresponding to a 5-bit value generated from the present invention, a person having ordinary skill in the art to which the present invention pertains is referred to and modified with reference to FIG. Various implementation methods for the bit code structure may be inferred, but the present invention includes all the implementation methods inferred above, and the technical features are not limited to the implementation method shown in FIG.

As shown in FIG. 10, a center point, a reference radius, and a reference line of a circular coordinate system for combining and generating bit codes from the image data acquired through the image acquisition module are determined, and a radius r1 (r1> r0) is determined from the center point. Code for combining and generating a bit code through the circular coordinate system when the dividing angle (1) θ1 for dividing the virtual circle (1) and the virtual circle (1) including the same by the equal angle is determined Recognizing unit (r1 +? Θ1) position and half spaced apart by (? 1+? R) position and (r1-? R) position and (r1 +? Θ1) clockwise relative to the reference line with respect to the r1 positions on the n1 dividing lines Check (r1-? Θ1) positions clockwise spaced by? Θ1, and check the r1 position, (r1 +? R) position, (r1-? R) position, (r1 +? Θ1) position, and (r1-? Θ1) ) Check that the point exists at the location.

Referring to the embodiment shown in FIG. 13, if a point exists at the position (r1-? R), the code recognition unit sets the least significant bit (LSB) to "1" and the (r1-?). r) if there is no point at the position, the least significant bit is set to "0"; if there is a point at the r1 position, the second least significant bit corresponding to the next higher bit of the least significant bit is set to "1", and the r1 position If the dot does not exist, the second significant bit is set to "0". If the dot exists at the position (r1 +? R), the third significant bit corresponding to the next higher bit of the second significant bit is set to "1". If a point does not exist at the position (r1 +? R), the third-order bit is set to "0". If a point exists at the position (r1 +? Θ1), the next higher bit of the third order bit is set. If the corresponding fourth order bit is set to "1" and no point exists at the position (r1 +? Θ1), the fourth order bit is set to "0". If a point exists at the position (r1-? θ1), the fifth order bit corresponding to the next higher bit of the fourth order bit is set to "1", and if the point does not exist at the position (r1-? θ1), the Generates a 5-bit value in which the fifth-order bit is set to "0".

Here, the bit position for the r1 position, (r1 +? R) position, (r1-? R) position, (r1 +? Θ1) position, (r1-? Θ1) position may be modified according to the intention of those skilled in the art, The method of determining the bit depending on the presence or absence of each point may also be reversed, and the present invention includes all the above-described embodiments.

When there are eight dividing lines on the virtual circle 1, the code recognizing unit may generate a bit code of 40 bits or less in total by combining respective 5-bit values for the eight dividing lines.

Here, the method of combining the 5-bit values may be sequentially combined in a clockwise direction (or counterclockwise) with respect to the reference line, and may be combined in various orders and combinations according to the intention of those skilled in the art.

For example, the code recognizing unit may generate a 5-bit value for the dividing line corresponding to the reference line and then generate a 5-bit value for the dividing line opposite to the dividing line by 180 degrees in the clockwise direction. The bit value combination scheme includes all implementation methods that can be inferred by those skilled in the art.

According to the present invention, the bit code structure for the virtual circle 1 of the eight dividing lines shown in FIG. 13 is within 80 bits according to the relative size of each point based on the reference point size as shown in FIG. Can be extended to bit code.

14A and 14B illustrate extending a bit code according to an embodiment of the present invention.

In detail, FIG. 14A shows the size of the four points that determine the center point and the reference radius r0 of the circular coordinate system as the reference point size, and the relative point size with respect to the reference point size. FIG. 14B illustrates the bit structure shown in FIG. 11, 12, or 13 by allowing Δr and / or Δθ1 shown in FIG. 10 to have different values. As shown in the drawing, a person having ordinary skill in the art to which the present invention pertains extends a bit size through a relative point size with respect to the reference point size by referring to and / or modifying the drawing 14. Various implementation methods for the implementation method may be inferred, but the present invention includes all implementation methods inferred from the above, and is also shown in FIGS. 14A and 14B. Only the exemplary method is not limited that the technical features.

Referring to FIG. 14A, when the center point and the reference radius of the circular coordinate system for combining and generating the bit code from the image data acquired through the image acquisition module are determined as shown in FIG. 10, the bit code is determined through the circular coordinate system. The code recognizing unit for combining and generating a checker identifies a reference point size for four points for determining the center point and the reference radius.

Here, the reference point size is dynamically determined by the pixel resolution of the image acquisition module acquiring the image data, and when the four points are acquired with the same size within a predetermined error range (eg, by the image acquisition module). If there is no distortion), it is preferable to use the reference point size.

According to the method of the present invention, when the four points are obtained with the same size within a certain error range, the reference point size is preferably determined as an average value for the four points.

If the point on the circular coordinate system shown in Fig. 11 or Fig. 12 or Fig. 13 is at a specific position and / or a bit of "1" or "0" is determined through, then one bit obtained through the one point is a point. If the size is smaller than the reference point size, it can be expanded to 2 bits, such as "11" if it is the same, "10" if it is larger, "01" if it is larger, and "00" if it is not.

Referring to FIG. 14B, when? R has two or more different intervals instead of equidistant intervals, or when Δθ1 has two or more different angles instead of equilateral angles, a combination of the bit codes through the circular coordinate system and The generated code recognition unit checks whether a point exists at two or more different positions of? R and / or at two or more different positions Δθ1 based on the reference point on the circular coordinate system.

For example, if? R further includes? R '(except? R ≠? R') in addition to? R, if (r1 +? R) has a dot, then "11" and (r1 +? R) have a dot. If there is no point at "10", (r1 +? R '), if there is no point at "01", (r1 +? R'), and if there is no point, the bits for each dividing line through the two? R and? R ' You can extend the value size.

Alternatively, when θ1 further includes θ1 '(in addition, θ1 ≠ θ1') in addition to θ1, if (r1 + θ1) has a point, “11”; if (r1 + θ1) has no point, “10”, (r1 If there is a point in + [theta] 1 '), if there is no point in "01" and (r1 + [theta] 1'), the size of the bit value for each dividing line can be extended through the two different [theta] 1 and [theta] 1 '.

According to the exemplary embodiment of the present invention, the number of? R having different values may include the pixel resolution of the image acquisition module and a maximum number identifiable within the interval (r1-r0), and △ having different values. The number of θ1 may also include within the maximum number identifiable within the pixel resolution and division angle θ1 of the image acquisition module.

For example, when the dividing angle θ1 is 0 degrees (or 360 degrees) (= divided region does not exist), it is possible to determine the bit value by different Δθ1, whereby the present invention It is not limited.

15 illustrates a process of combining and generating codes through dot pattern analysis according to an exemplary embodiment of the present invention.

In more detail, FIG. 15 illustrates a process of combining and generating codes through a dot pattern analysis as shown in FIG. 10 through a circular coordinate system in a code recognition unit of the dot pattern recognition apparatus illustrated in FIG. For those of ordinary skill in the art to which the present invention pertains, various implementation methods (e.g., some steps may be performed) for the process of combining and generating codes through the dot pattern analysis by referring to and / or modifying the drawing 15. The method may be omitted or the order may be changed.), But the present invention includes all the implementation methods inferred above, and the technical features are not limited to the implementation method shown in FIG.

Referring to FIG. 15, the code recognition unit checks image data acquired through the image acquisition module (1500), and reads the image data to identify the center point and the reference radius r0 of the circular coordinate system (1505).

If the center point and the reference radius r0 of the circular coordinate system are identified from the image data (1510), the code recognition unit determines the radius and the dividing angle of the virtual circle 1 based on the center point and the reference radius r0 of the circular coordinate system. 1515 and after checking the dividing lines as many as the number of divided regions through the radius and the dividing angle with respect to the virtual circle 1 (1520), a reference point at which each dividing line and the virtual circle 1 intersect, a center point from the reference point Generate a bit value for each dividing line by analyzing a point distribution of positions spaced apart in a direction, or generate a bit value for each dividing line by further analyzing a point distribution of positions spaced in a rotational direction in addition to the center point direction (1525). A bit code of a predetermined size for the virtual circle 1 is generated by combining the generated bit values for each dividing line (1530).

In addition, the code recognition unit checks whether a virtual circle (n, n> 1) exists above the virtual circle 1 (1535).

If the virtual circle n does not exist above the virtual circle 1 (1540), the code recognizing unit checks the bit code of the virtual circle 1 as any one of a problem code and an answer code. (1575).

On the other hand, if the virtual circle (n) exists (1540), the code recognition unit determines the radius and the split angle for the virtual circle (n) based on the center point and the reference radius r0 of the circular coordinate system (1545), the virtual After checking the dividing lines as many as the number of divided regions through the radius and the dividing angle with respect to the circle n (1550), the reference point where each dividing line and the virtual circle (n) intersect, the point of the position spaced apart from the reference point in the direction of the center point Generate a bit value for each dividing line by analyzing a distribution, or generate a bit value for each dividing line by further analyzing a point distribution of positions spaced apart in a rotation direction in addition to the center point direction (1555), and generating the bit value for each dividing line. After generating a bit code of a predetermined size for the virtual circle (n) by combining the (1560), it is checked whether the virtual circle (n = n + 1) exists on the virtual circle (n) (1565) .

If the upper virtual circle n exists (1570), the code recognition unit generates a bit code for each virtual circle by combining bit values of the dividing line of the virtual circle until the upper virtual circle no longer exists. Repeat the process.

On the other hand, if the upper virtual circle (n) does not exist (1570), the code recognizing unit combines the bit code of the virtual circle (1) to the virtual circle (n) of any one of the question code, the answer code Configure 1575.

16 illustrates a process of combining and generating codes through dot pattern analysis according to another exemplary embodiment of the present invention.

In more detail, FIG. 16 combines and generates codes through a dot pattern analysis as shown in FIG. 10 through a circular coordinate system in the code recognition unit of the dot pattern recognition apparatus shown in FIG. As shown in the process of further extending the code through the present invention, those skilled in the art to which the present invention belongs, combining the code through the dot pattern analysis by referring to and / or modified in this figure 16 And various implementation methods (for example, some steps may be omitted or the order may be changed) for the generating process. However, the present invention includes all the implementation methods inferred from the drawing. The technical features are not limited only to the implementation method shown in FIG.

Referring to FIG. 16, the code recognition unit checks image data acquired through the image acquisition module (1600), reads the image data, checks the center point and the reference radius r0 of the circular coordinate system, and checks the center point and the reference radius. The reference point size for the determining point is determined (1605).

If the center point, the reference radius r0 and the reference point size of the circular coordinate system are determined from the image data (1610), the code recognition unit may determine the radius of the virtual circle 1 based on the center point and the reference radius r0 of the circular coordinate system. After determining the dividing angle (1615), checking the dividing line as many as the number of divided regions through the radius and the dividing angle for the virtual circle 1 (1620), the reference point at which each dividing line and the virtual circle 1 intersects, A bit value for each dividing line is generated by analyzing a point distribution of a position spaced apart from the reference point in a direction of a center point, or a bit value for each dividing line is generated by further analyzing a point distribution of a position spaced in a rotational direction other than the center point direction. The bit value for each dividing line is further extended (1625) by comparing the reference point size with each point size and combining the generated bit values for each dividing line. And it generates a bit code of the predetermined size based on the source 1 (1630).

In addition, the code recognition unit checks whether a virtual circle (n, n> 1) exists above the virtual circle 1 (1635).

If the virtual circle n does not exist above the virtual circle 1 (1640), the code recognizing unit checks the bit code of the virtual circle 1 as any one of a problem code and an answer code. (1675).

On the other hand, if the virtual circle (n) exists (1640), the code recognition unit determines the radius and the split angle for the virtual circle (n) based on the center point and the reference radius r0 of the circular coordinate system (1645), the virtual After checking the dividing lines as many as the number of divided regions through the radius and the dividing angle for the circle (n650) (1650), the reference point where each dividing line and the virtual circle (n) intersect, the point of the position spaced apart from the reference point in the direction of the center point Generate a bit value for each dividing line by analyzing the distribution, or generate a bit value for each dividing line by further analyzing a point distribution of positions spaced apart in the rotational direction in addition to the center point direction, and comparing the relative point size with each point size. After generating by further extending the bit value for each dividing line through (1655), and after generating the bit code of the predetermined size for the virtual circle (n) by combining the generated bit value for each dividing line (1660) ), remind In operation 1665, it is determined whether a virtual circle n = n + 1 exists above the virtual circle n.

If the upper virtual circle n exists (1670), the code recognition unit generates a bit code for each virtual circle by combining bit values of the dividing line of the virtual circle until the upper virtual circle no longer exists. Repeat the process.

On the other hand, if the upper virtual circle (n) does not exist (1670), the code recognizing unit combines the bit code of the virtual circle (1) to the virtual circle (n) of any one of the question code, the answer code Configure (1675).

According to the present invention, after printing a bit code encoded in a pattern of dots not visible in the character or figure constituting the question or answer of the tutorial, the student in the process of solving the problem or correct the answer A dot pattern recognition device that recognizes a bit code printed invisibly in the question or answer of the tutorial through a dot pattern recognition device that recognizes a bit code encoded invisibly in the question or answer of the tutorial, and the dot pattern recognition device while the bit code is recognized. After checking the student's learning situation by recognizing the drag motion of the student, the user's portable video player plays the problem description video content or the answer explanation video content corresponding to the recognized bit code and the student's learning condition in real time. To print only the video content necessary for student learning. The advantage of selectively playing, if you need a description of the problem, the video content describing the problem in accordance with the learning situation of the student, and if you need a detailed explanation of the correct answer to the learning situation of the student In addition, there is an advantage of reproducing the video content described in detail, and the need to explain the avoidance of the incorrect answer has the advantage of playing the video content for explaining how to avoid the wrong answer in accordance with the learning situation of the student.

Claims (7)

Image acquisition module for acquiring image data corresponding to any one of characters, figures, and images constituting a question or answer printed on a specific print area on a print medium constituting a tutorial, and a motion sensor for sensing movement, direction, and position In a device having a module, A code recognizing unit recognizing / reading a pattern of a plurality of points constituting image data acquired through the image acquisition module to recognize a bit code encoded invisibly on the image data; A motion recognition unit for recognizing a drag motion that drags the print medium through the motion sensor module while recognizing the bit code, and determining a situation determination motion code for a problem or answer corresponding to the bit code; An information construction unit configured to combine the recognized bit code and the situation determination motion code to form video identification information for determining learning video content to be provided to a student according to a learning situation according to the motion recognition; And And an information provider for providing the video identification information to a portable video player having the learning video content connected with the bit code and the lecture identification information. The method of claim 1, wherein the drag motion, And dragging the dot pattern recognition device to any one of 'O', 'X', '/', '_', and 'V' while the image acquisition module is in close contact with the print medium. Point pattern recognition device, characterized in that. Claim 3 has been abandoned due to the setting registration fee. 3. The method of claim 2, While the bit code corresponding to the problem on the print media is recognized, the drag motion of 'O' is matched to the situation determination motion code of 'correct' and the drag motion of 'X' or '/' is 'correct'. Match the situation determination motion code of the drag motion of '_' or 'V' match the situation determination motion code of "Request Description", While the bit code corresponding to the answer on the print medium is recognized, the drag motion of 'O' or '_' or 'V' is matched with the situation determination motion code of 'Select answer' for the answer and 'X' Or a drag motion of '/' is matched with a situation determination motion code of "exclude selection" for the corresponding answer. Image acquisition module for acquiring image data corresponding to any one of characters, figures, and images constituting a question or answer printed on a specific print area on a print medium constituting a tutorial, and a motion sensor for sensing movement, direction, and position In the method for providing a video content for each learning situation through a device having a module, Recognizing / reading a pattern of a plurality of points constituting image data acquired through the image acquisition module by a code recognizing unit to recognize a bit code encoded invisibly on the image data; Recognizing a drag motion that drags the print medium through the motion sensor module while the motion recognition unit recognizes the bit code, and determining a situation determination motion code for a problem or answer corresponding to the bit code. ; Composing the video identification information for combining the recognized bit code and the situation determination motion code to determine the learning video content to be provided to the student according to the learning situation according to the motion recognition; And And providing the video identification information to a portable video player having a learning video content connected to the bit code and the lecture identification information by an information providing unit. Printed by encoding the problem code combining the tutorial identification code and the problem identification code into the pattern of the dot pattern on the characters, figures, and images constituting the problem of the tutorial, which is composed of printing characters, figures, and images on the print medium by the print processing means. If the problem of the tutorial includes multiple-choice answers, the combination of the text, the figure, the image constituting each multiple-choice answer, the answer code and the question identification code and the answer identification code for identifying each multiple-choice answer Encoding the code into a code of a dot pattern and processing it to be printed; Problem description motion code corresponding to one or more learning situations associated with the problem corresponding to the problem identification code among the problems included in the tutorial corresponding to the tutorial identification code in the content constituent and the situation determination motion code corresponding to each learning situation and the problem If a code is connected and a question in the tutorial includes a multiple-choice answer, one or more learning-specific answer description video content associated with each multiple-choice answer included in the question and the context determination motion code corresponding to each learning situation and the answer Connecting a code to construct a video content package to be stored in a predetermined removable storage medium; Processing the video content package to be stored in a mobile storage medium provided in the portable video player in a content processing unit; The dot pattern recognition apparatus recognizes and reads a dot pattern from the recognized image data by dragging a specific print area on the print medium constituting the tutorial through the image acquisition module so as to be invisible to characters, figures, and images printed on the print medium. Recognizing the encoded bit code, and determining a situation determination motion code corresponding to a drag motion while recognizing the bit code; Providing, by the dot pattern recognition apparatus, video identification information combining the recognized bit code and the determined situation determination motion code to a portable video player; And extracting and playing the problem description video content or the answer description video content corresponding to the bit code and the situation determination motion code included in the video identification information from the portable storage medium in the portable video player. How to provide a learning video for each learning situation. Claim 6 was abandoned when the registration fee was paid. A computer-readable recording medium having recorded thereon a program for executing the method of claim 4 or 5. A problem code combining a tutorial identification code and a problem identification code on a character, figure, or image constituting a problem of a tutorial composed of printing a character, a figure, or an image on a print medium is encoded and processed into a dot pattern code. When the question of the tutorial includes a multiple-choice answer, an answer code that combines the text, figure, and image constituting each multiple-choice answer with the tutorial identification code, the problem identification code, and the answer identification code for identifying each multiple-choice answer is a dot pattern. Print processing means for processing to be encoded and coded by a code of; A problem description video content corresponding to one or more learning situations associated with a problem corresponding to the problem identification code among the problems included in the tutorial corresponding to the tutorial identification code and a situation determination motion code corresponding to each learning situation and the problem code; When the question of the tutorial includes a multiple-choice answer, one or more learning description explanation video content associated with each multiple-choice answer included in the question and a context determination motion code corresponding to each learning situation and the answer code Content constituting means for constituting a video content package to be stored in a predetermined removable storage medium; Content processing means for processing the video content package to be stored in a portable storage medium provided in the portable video player; And The image acquisition module recognizes and reads a dot pattern from image data recognized by dragging a specific print area on a print medium constituting the tutorial, and encodes a bit code encoded invisibly on the characters, figures, and images printed on the print medium. Recognizing, determining a situation determination motion code corresponding to the drag motion while recognizing the bit code, and providing video identification information combining the recognized bit code and the determined situation determination motion code to the portable video player. It characterized in that it comprises a dot pattern recognition device; The portable video player, And a problem description video content or an answer explanation video content corresponding to the bit code and the situation determination motion code included in the video identification information from the removable storage medium.

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