KR200306524Y1 - Electronic Board System Using Computer - Google Patents

Abstract

The present invention relates to an electronic blackboard system, and more particularly, to an electronic blackboard system using a computer capable of using various multimedia materials as a lecture syllabus and displaying clean letters and lines on a screen as clean and smooth lines. will be.

The main configuration of the present invention is a player unit for reading the syllabus file and display on the monitor; An editor unit that allows the lecture syllabus file to be separated or recombined according to the lecture time or the contents of the syllabus; A media player unit used to play the recorded lecture file; Sue government to smoothly write letters and pictures written by lecturers; And a recorder unit that provides a function of recording writing on a monitor, making lecture syllabus, and recording lecture contents.

According to the present invention, the lecturer can change the written words or pictures to clean and smooth letters or pictures so that the learners can easily read the written contents and can accurately recognize the written contents.

Description

Electronic Board System Using Computer}

The present invention relates to an electronic blackboard, and more particularly, to an electronic blackboard system using a variety of multimedia materials as lecture syllabus, and having a function of displaying letters and lines written on the screen as clean and smooth lines. .

Conventionally, the blackboard refers to a wide board painted with black and the like so that it can be written in chalk, also called a blackboard. Such a blackboard has a problem that a lot of chalk powder can harm the health of the writers. Therefore, a whiteboard using a marker pen has been developed and used widely, instead of using chalk, and in recent years, an electronic device using an OHP film or a projector is also used. It is used a lot.

In particular, the method of projecting onto a screen using a projector is a trend that is rapidly increasing with the spread of notebooks.

There have been a number of patents and utility model applications regarding the use of such projectors and screens in lectures or seminars. In particular, by applying these technologies, presentation or lecture texts can be projected on a screen by a projector or electronic board. At the same time, there are many applications for devices that can increase the efficiency of lectures by writing necessary matters during lectures and projecting them on the screen.

In this regard, it is shown well in Japanese Patent Application Laid-Open No. 2001-0008393 (name: writing content providing system using electronic blackboard) and No. 20-0257271 (name: electronic blackboard device).

According to the above electronic blackboard apparatus, the lecturer prepares the lecture syllabus into a file that can be read in advance on a computer, prepares it, reads it from the computer, and projects the lecturer's screen by the projector to view the contents on his monitor. In addition, the content can be viewed on the participant's screen.

In particular, if a lecturer needs to write during the lecture, he / she writes out the necessary matters using a mouse and keyboard or an electronic pen connected to the lecturer's computer, and the lecturer writes the contents and the learners write the contents. You can see them together on the screen.

However, the conventional electronic blackboard apparatus has a function that allows the lecturer to write the necessary information on the monitor or the screen. However, when the projection is projected through the projector, the written text or pictures are enlarged as the screen is enlarged, and the contents of the writing are messy. In some cases, the letters or lines may not be displayed smoothly, and in some cases, the participants may not be able to recognize the written contents.

In addition, the conventional electronic blackboard apparatus can use an image or a still image as teaching material, but does not provide a function for making teaching material using an image file such as a video.

The present invention was devised to solve the above problems, and an object of the present invention is to provide a lecturer with the ability to smoothly correct letters or lines written on a monitor or screen so that the learner can recognize the written contents cleanly and accurately. To provide a system. Another object of the present invention is to provide an electronic blackboard system having a function of making teaching materials using image files such as moving images as well as images and still images.

1 is a perspective view showing the overall configuration of an electronic blackboard system using a computer according to the present invention,

Figure 2 is a block diagram showing the configuration of an electronic blackboard system using a computer according to the present invention,

3 is a view showing a state written on the monitor for lecturers of the electronic blackboard system using a computer according to the present invention,

4a and 4b is a view showing a state before and after the correction of the writing, such as written by the lecturer by the correction function.

<Explanation of symbols for the main parts of the drawings>

10: player unit 20: editor unit

30: media player unit 40: recorder unit

50: Correction 60: Monitor

70: screen for students 100: electronic blackboard system

Configuration of the present invention for achieving the above object is a player unit for reading a syllabus file and display on the monitor; A recorder unit providing a function of recording writing on a monitor, making lecture syllabus, and recording lecture contents; Sue government to smoothly write letters and pictures written by lecturers; An editor unit that allows the lecture syllabus file to be separated or recombined according to the lecture time or the contents of the syllabus; And a media player unit for reproducing multimedia files such as moving pictures and audio data, and used for reproducing the recorded lecture file.

The correction unit includes a writing content recognizing unit for recognizing a writing or a picture written by a lecturer corresponding to a position address on a screen; A line processing unit which makes a smooth line by a spline technique of connecting writing contents such as letters and pictures received through the writing contents recognition unit into curved lines between two designated points; And an output unit for outputting a writing content such as letters or pictures modified by the line processing unit to the player unit so as to be displayed on a monitor.

The line processing unit may use an antialiasing technique to soften the edges of an object so that the outline of a text or a figure is smoothly seen.

The recorder is a mode function unit for selecting any one of a window mode, a window writing mode, a teaching instruction writing mode, and a teaching preparation function unit for converting each page of a document into a picture file to form a teaching plan and storing it. It consists of a writing function that allows writing of letters and pictures on the monitor, and a recordable part that allows the lecturer to record the lecture progress and teaching materials together.

The teaching plan production unit is characterized by providing a function for converting a snapshot of the video into a picture file.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a perspective view showing the overall configuration of an electronic blackboard system using a computer according to the present invention, Figure 2 is a block diagram showing the configuration of the electronic blackboard system using a computer according to the present invention.

As can be seen in Figure 2, the electronic blackboard system using a computer according to the present invention is the player unit 10, the editor unit 20, the media player unit 30, the recorder unit 40 and the correction unit 50 It consists of.

The player unit 10 reads the syllabus file and displays it on the lecturer monitor 60.

The editor unit 20 provides a function of editing a lecture file such as separating or recombining the lecture file according to the lecture time or the contents of the syllabus.

The media player unit 30 is used to replace a media player function of a Windows program and to play a multimedia file such as a moving picture or audio data, and is used to play a recorded lecture file.

The correction unit 50 plays a role of correcting the form in a smooth form when the lecturer writes letters or pictures. When a lecturer writes a letter or picture with an electronic pen (1), a mouse (2), or a keyboard (3), the letter or picture is thinly displayed or written on the monitor. The content written on the monitor may be skewed or squiggly, and the information written on the monitor is enlarged and displayed on the student's screen 70 again. The enlarged letters are harder to recognize than those on the monitor 60. Can be hard to recognize.

Therefore, in the present invention, the lecturer has a function of correcting writing when writing such as writing or drawing. Various methods may be used for this purpose, but the present invention implements a function of modifying using a spline technique or an antialiasing technique.

Here, the spline technique is a program technique that connects two designated points with a curve so that the entire line becomes a continuous curve, that is, a smooth curve.

The antialiasing feature also improves the quality of the entire screen image by smoothing the edges of the object, harmonizing the background by inserting additional pixels of a specified color around the edge of the object on the screen. If you use antialiasing technique, you can eliminate the step phenomenon that occurs when you enlarge the picture file and make the outline of the text or picture look smooth.

The correction unit 50 includes a writing content recognizing unit 51 for recognizing the characters or pictures written by the lecturer in correspondence with the position address on the screen; The writing content such as text or picture received by the writing content recognition unit is connected to two specified points by curves to make a smooth curve by the spline technique that creates a continuous curve or by using an antialiasing technique. A line processing unit 52 for smoothing; And an output unit 53 for outputting writing contents such as letters or pictures modified by the line processing unit to the player unit so as to be displayed on the monitor.

The recorder unit 40 includes a mode function unit 41, a teaching plan production unit 42, a writing function unit 43, and a recording function unit 44.

The mode function unit 41 is provided with a window mode, a window writing mode, and a teaching writing mode.

The window mode is a mode that displays the execution status of a Windows program as it is. The window writing mode is a mode that can be written on the execution screen of a window program. At the same time, you can write on it.

The teaching material production function 42 converts each page of the document into a picture file to form a teaching syllabus, and converts a snapshot of the video into a picture file to produce a teaching snapshot such as a video snapshot teaching syllabus. It provides a function to enable it.

The function of creating a snapshot snapshot instruction by converting a snapshot of the movie into a figure file is to capture the movie file at regular intervals and convert it into a figure file to make a syllabus, or to create a part of the lecturer's discretion. It is also possible to capture and convert it into a picture file to create a teaching plan.

In addition, the teaching plan production unit 42 provides a function of storing the screen currently displayed on the screen as a picture file including teaching guides and contents written thereon.

The writing function 43 allows writing on the monitor 60 or drawing straight lines, horizontal and vertical curves, curves, polygons, and the like, and changes the thickness or color of letters and lines. to provide. It also provides the ability to erase or enlarge written text or pictures.

The recording function unit 44 provides a function of allowing the lecturer to store the contents of the lecture, writing information, and the lecturer's lecture as it is during the lecture using the teaching plan. In addition to recording start and recording stop, a recording pause function and a timer function to specify the recording time are also provided.

3 is a view showing a state written on the monitor for the lecturer of the electronic blackboard system using a computer according to the present invention, Figures 4a and 4b is a state before and after the correction by the correction function, such as written by the lecturer Figure showing.

As can be seen in the drawings, an electronic blackboard system using a computer according to the present invention is capable of writing directly on a monitor while a window or the like is running on the computer, thereby teaching a computer program or an application running on the computer. For example, it can be very useful when it is necessary to provide training while confirming a state in which a program or an application is executed on a computer.

FIG. 3 shows the written contents when a lecturer lectures on a search method for empas, which is one of Internet search engines. The lecturer displays the search box on the main menu of Empas directly with an electronic pen while writing the empas, the internet search engine directly from his computer, and writes the information. You can lecture while looking at the screen and writing on the screen to make the lecture more vivid and efficient.

As can be seen in Figures 4a and 4b, the text is not thin or clear before correcting the written content, but after the correction by the electronic blackboard system using a computer according to the present invention is clear and clear can see.

On the other hand, in the detailed description of the present invention has been described with respect to specific embodiments, it is obvious to those skilled in the art that various modifications are possible without departing from the scope of the present invention.

According to the electronic blackboard system using the computer according to the present invention as described above, the lecturer can easily change the written contents by changing the skewed or sloping parts of the lecturer or the serpentine part into smooth curves and changing them into clean letters or pictures. You can find out and understand exactly what you have written.

In addition, it provides a function to make a multimedia file, such as a video, into a syllabus by using a snapshot technique, so that a lecturer can prepare a textbook in various forms.

Claims (5)

A player unit for reading a syllabus and displaying the syllabus on a monitor; A recorder unit providing a function of recording writing on a monitor, making lecture syllabus, and recording lecture contents; Sue government to smoothly write letters and pictures written by lecturers; An editor unit that allows the lecture syllabus file to be separated or recombined according to the lecture time or the contents of the syllabus; And An electronic blackboard system for playing a multimedia file such as a moving picture or audio data, comprising a media player used to play a recorded lecture file. The method of claim 1, wherein the correction unit A writing content recognizing unit for recognizing a writing or picture written by a lecturer in correspondence with a position address on a screen; A line processing unit which makes a smooth line by a spline technique of connecting writing contents such as letters and pictures received through the writing contents recognition unit into curved lines between two designated points; And And an output unit configured to output a writing content such as letters or pictures modified by the line processing unit to a player so as to be displayed on a monitor. The method of claim 2, wherein the line processing unit An electronic blackboard system using an antialiasing technique that softens the edges of an object so that the outline of a text or a picture can be seen smoothly. According to claim 1, wherein the recorder unit Mode function unit to select one of window mode, window writing mode, teaching instruction mode, Textbook production function that converts each page of the document into a picture file to make it in the form of a syllabus and save it, Writing function that allows you to write letters and pictures on the monitor, An electronic blackboard system using a computer having a recordable unit for recording lecture progress and teaching materials of the lecturer. The electronic blackboard system of claim 4, wherein the teaching plan production unit provides a function of converting a snapshot of a video into a picture file.