KR100688387B1 - method for providing animation lecture for PDA - Google Patents

Abstract

The present invention relates to a method of providing a video lecture using a mobile terminal, which enables playback of a video lecture file for a mobile terminal including lecture video data, table of contents data, instructional data, and synchronization data by applying an alpha blending technique.

According to the present invention, a method of providing a video lecture using a mobile terminal includes a key input unit including a touch screen as a command input means and a function key button, and a lecture video data stored in a video file format, and the contents of the lecture are stored as text or pictures. The video lecture file for the mobile terminal and the video lecture file for the mobile terminal including the script data, the video data of the lecture, and the synchronization data in which the script data is synchronized on a time axis are stored in the first and second layers. Performed by the video lecture playback program for the mobile terminal including a memory storing a video lecture playback program for a mobile terminal to play by applying blending, (a) inputs a video playback file playback instruction for the mobile terminal If you received above Reading the lecture video data of the video lecture file for the mobile terminal and playing the video data on the first layer; (b) checking the playback time of the lecture video data currently being played when a script display command is input; and (c) the script corresponding to the checked playback time with reference to the confirmed playback time and the synchronization data. Reading data and applying alpha blending to the second layer to display the second layer.

Mobile terminal, video lecture, pda, alpha blending

Description

How to provide video lecture using mobile device {method for providing animation lecture for PDA}

1 is a network configuration diagram of a method for providing a video lecture using a conventional Internet;

2 is an exemplary screen of a conventional video lecture playback program;

3 is a block diagram of a video lecture file for a mobile terminal produced according to the present invention,

4 is a flowchart of a method for producing a video lecture file for a mobile terminal according to the present invention;

5 is a view for explaining the operation of the video lecture playback program for a mobile terminal according to the present invention;

6a to 6c is an exemplary screen of a video lecture playback program for a mobile terminal according to the present invention,

7 is a flowchart illustrating a method of playing a video lecture file for a mobile terminal according to the present invention.

*** Explanation of symbols for the main parts of the drawing ***

100: Computer 200: Video Lecture Provider

210: video lecture providing server 220: lecture video DB

230: Script DB 300: video lecture playback program

310: lecture video playback window 320: table of contents display window

330: teaching instruction display window 340: playback control button window

400: Video lecture file for mobile terminal

410: lecture video data 420: table of contents data

430: teaching data 440: synchronization data

500: Video lecture playback program for mobile terminal

510: first layer 520: second layer

600: touch screen

The present invention relates to a method of providing a video lecture using a mobile terminal, and in particular, a mobile terminal that can be conveniently learned by using a mobile terminal by producing and distributing a video lecture file and a video lecture file playing program suitable for learning with a mobile terminal. It relates to a video lecture providing method used.

Since the invention of ANIAC, the first computer in 1946, the computer has been steadily developed and has become an essential tool for social life in modern times. In particular, the emergence of Windows and the Internet, the GUI (Graphic User Interface) -based operating system, played a big role in the rapid spread of computers, and the general public or students could use them as learning tools.

The computer can be used as a learning tool by recording a teacher's lecture and making it as a video lecture file, and then distributing it to students so that they can watch the teacher's lecture on the computer at any time and stream the video by recording the teacher's lecture. There is an online method of producing a lecture file and distributing it to students to view the teacher's lecture on a computer with an internet connection.

1 is a network configuration diagram of a method for providing a video lecture using a conventional Internet.

As shown in FIG. 1, a network configuration diagram of a method for providing a video lecture using a conventional Internet is connected to the Internet, and the computer 100 with a video lecture playback program is installed and the video lecture lecture DB 220 in which a video lecture file in a streaming form is stored. , Synchronized with any video lecture file, connected to the script DB 230 where the script file containing the table of contents and instruction in document or picture file format and the Internet is connected, and that the computer 100 requests a video lecture. It includes a video lecture provider 200 consisting of a video lecture providing server 210 for reading and providing a lecture file and a script file from the lecture video DB 220 and the script DB 230.

2 is an exemplary screen of a conventional video lecture providing program.

As shown in FIG. 2, the conventional video lecture playback program 300 installed in the computer 100 includes a video lecture file playback window 310 in which a video lecture file is played, and a script file played according to a playback time of a video lecture file. Table of contents display window 320 to display the table of contents, teaching symptom display window 330 of the teaching syllabus displayed in accordance with the playback time of the video lecture file played in the video lecture file playback window 310 and video lecture file playback window ( And a playback control button window 340 provided with control buttons such as starting, stopping, and pausing playback of the video lecture file displayed at 310.

Therefore, when the user connects to the video lecture providing server 210 by using the computer 100 and selects the desired video lecture, the video lecture providing server 210 displays the video lecture file and the script file corresponding to the selected video lecture. 220 and the script DB 230 is read and provided to the computer 100, the computer 100 can be conveniently provided by the video lecture file and the script file by playing the video lecture playback program installed.

As described above, according to the conventional mobile communication terminal, if the Internet is connected and only a computer with a video lecture reproducing program is installed, the video lecture can be conveniently provided while the computer is not connected to the Internet. There was a problem that can not be provided in the street and the inside of the vehicle.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problem, and when the video lecture is played by the mobile terminal, the lecture video data is played on the first layer, and the script data is alpha blended and displayed on the second layer, thereby allowing the mobile terminal to display the video. An object of the present invention is to provide a video lecture providing method using a mobile terminal that can provide an optimal video lecture on a small screen.

In order to achieve the above object, a video lecture providing method using a mobile terminal of the present invention includes a video input, a key input unit including a touch screen and a function key button, which are command input means, and actual video taken and stored in a video file format. A video lecture file for a mobile terminal and a video lecture file for the mobile terminal, the script data including contents of a text or a picture stored in a text or a synchronization data storing the lecture video data and information synchronized with the script data on a time axis; A video lecture playback program for a mobile terminal including a memory for storing a video lecture playback program for a mobile terminal by applying alpha blending to a layer and a second layer is performed by the video lecture playback program for the mobile terminal, and (a) for the mobile terminal. Video lecture file re Reading the lecture video data of the video lecture file for the mobile terminal and playing the video on the first layer when the instruction is received; (b) checking the playback time of the lecture video data currently being played when a script display command is input; and (c) the script corresponding to the checked playback time with reference to the confirmed playback time and the synchronization data. The present invention provides a method of providing a video lecture using a mobile terminal comprising reading and displaying data by applying alpha blending to the second layer.

Hereinafter, with reference to the accompanying drawings will be described in detail a method of providing a video lecture using a mobile terminal according to an embodiment of the present invention.

A portable terminal is a personal information processor called by various names such as PDA (Personal Digital Assistant), Pocket PC, and HPC (Hand PC). It can be used for a long time through the technology of miniaturization, light weight, and low power. Do.

In particular, the mobile terminal includes a key input unit having a touch screen and a plurality of function key buttons, a memory for storing various data and programs, and a control unit for controlling the key input unit and the memory. It is excellent and can be used by installing related programs such as schedule management, dictionary, financial management, document management, games and multimedia playback.

On the other hand, if you install the video lecture playback program for the mobile terminal to the mobile terminal, and save the video lecture file for the mobile terminal, you can conveniently learn anytime, anywhere. First, the video lecture file for the mobile terminal Find out.

3 is a block diagram of a video lecture file for a mobile device produced according to the present invention.

As shown in FIG. 3, the video lecture file 400 for a mobile terminal produced according to the present invention is a video content 410 achieved by photographing and storing a lecture, the table of contents achieved by a document or picture file in which a list of lectures is stored. Synchronization in which the data 420, syllabus data 430 achieved by a document or picture file in which lecture contents are stored, and information on synchronizing lecture video data 410, table of contents data 420, and syllabus data 430 on the time axis are stored. Data 440 is included.

4 is a flowchart of a video lecture file production method for a mobile terminal according to the present invention, which is achieved by a video lecture production program such as GVA2000.

First, in step S11, the lecture video data 410 to be produced as the video lecture file 400 for the mobile terminal is loaded, and in step S13, the contents and file of the contents and teaching materials are played at an appropriate time while playing the loaded lecture video data 410. Motivate the content. In particular, when synchronizing the contents and teaching materials, when the user selects the contents and contents of the teaching materials, lecture video data of a specific time may be reproduced or linked to read the contents or teaching materials.

After the synchronization is completed, the lecture video data, the table of contents, and instructional text are generated together with the synchronization data in one video lecture file 400 for the mobile terminal in step S15.

On the other hand, if you compress video data when you create a video lecture file for a mobile device, you can create a video lecture file suitable for a mobile device with less storage space than a normal computer. Is achieved by using a compression algorithm of. In addition, the addition of the Digital Rights Management (DRM) function, which can prevent illegal distribution, is achieved by including file usage period and user information.

5 is a diagram illustrating a operation of a video lecture playback program for a mobile terminal according to the present invention. FIG. 5 illustrates a mobile terminal in which a video bar, lecture video data 410, table of contents data 420, teaching data 430, and synchronization data 440 are stored. A video lecture file 400 for a terminal; A first layer 510 for playing lecture video data 410; A second layer 520 in which the table of contents data 420 or the teaching material data 430 is displayed by being alpha blended; A touch screen 600 provided on a flat panel display of a mobile terminal and receiving a command from a user and a user's command to read a video lecture file 400 for the mobile terminal and then refer to the synchronization data 440. To play the lecture video data 410 on the first layer 510 and to alpha-blend the table of contents data 420 or instructional data 430 on the second layer 520 to display the lecture video data 410. 500 is made.

The above-described alpha blending is a function of dividing the transparency, that is, the alpha value, sequentially into a picture or a 3D object, and expressing a transparent state or a translucent state by changing the alpha value. When alpha blending is applied to the front picture, it is a technology that can pass the previous picture and show the effect of the back picture.

6A to 6C are exemplary screens of a video lecture playback program for a mobile terminal according to the present invention. FIG. 6A is a screen in which lecture video data 410 is played on a first layer 510.

FIG. 6B illustrates an alpha blending process displayed on the second layer 520 by receiving a menu display command from a user on the screen of FIG. 6A.

FIG. 6C is a screen in which the white board is selected from the menu displayed in FIG. 6B and the teaching data 430 is alpha blended on the second layer 520.

7 is a flowchart illustrating a method of playing a video lecture file for a mobile terminal according to the present invention.

As shown in FIG. 7, step S21 is a step of executing a video lecture playback program 500 for a mobile terminal, and step S23 is selected after reading and reading the video lecture file 400 for a mobile terminal to be read from a user. The lecture video data 410 of the mobile terminal video lecture file 400 is reproduced on the first layer 510.

Next, in step S25, when a menu display command is input from the user, the menu is displayed by applying alpha blending to the second layer 520, and step S27 determines whether the command is input from the user.

As a result of the determination in step S27, if no command is inputted, step S27 is repeated.

If the result of the determination in step S29 is not a table of contents display command, the flow advances to step S41 to determine whether it is a teaching instruction display command. In operation 440, the table of contents data 420 corresponding to the identified playback time is read, and alpha blending is applied to the second layer 520.

Subsequently, in step S33, one of the contents displayed in step S31 is selected and the playback time of the lecture video data 410 is moved with reference to the synchronization data 440 corresponding to the contents of the selected content, and the contents corresponding to the moved playback time are moved. After reading, alpha blending is applied and displayed on the second layer 520.

On the other hand, as a result of the determination in step S41, if it is not a teaching instruction display command, the operation proceeds to step S47 to perform an operation corresponding to the input command. In the case of the teaching instruction display instruction, the operation proceeds to step S43. After checking the reproduction time and the synchronization data 440, the teaching material data 430 corresponding to the identified reproduction time is read and then displayed on the second layer 520 by applying alpha blending.

Subsequently, in step S45, one of the lessons displayed in step S43 is selected and the playback time of the lecture video data 410 is moved with reference to the synchronization data 440 corresponding to the selected lesson, and the corresponding lessons are read. After the alpha blending is applied, the second layer 520 is displayed.

Meanwhile, in this detailed description, the lecture video data is reproduced on the first layer, the teaching material data or the table of contents data are reproduced on the second layer, but the teaching material data or the table of contents data is reproduced on the first layer, and the lecture video is reproduced on the second layer. Alpha blending may be applied to the second layer by reproducing the data. Toggle the table of contents or instructional menu button displayed on the layer and click the table of contents or instructional menu button once. 430 is displayed, and clicking again may cause the display of the contents data 420 or teaching data 430 to be erased.

In addition, when the video lecture file 400 for the mobile terminal is produced, the instructor underlines or circles the motions of the instructor reproduced on the first layer 510 and the teaching contents displayed on the second layer 520. In this case, an underline or a circle may be expressed in the portion of the second layer 520, so that the instructor makes a learning effect by giving a lecture in front of the transparent blackboard.

The method of providing a video lecture using the mobile terminal of the present invention is not limited to the above-described embodiments, and various modifications can be made within the range allowed by the technical idea of the present invention.

According to the method of providing a video lecture using the mobile terminal of the present invention as described above, the video lecture file and the video file playback program applying the alpha blending technique suitable for learning by the mobile terminal to produce and distribute a small screen anytime, anywhere There is an effect that can be conveniently learned with a mobile terminal having a.

Claims (5)

Lecture video data that is taken and saved in a video file format and played back in an arbitrary layer, script data stored in text or pictures and played in another layer, and synchronization information on the time axis of the video data and the script data Is performed by the video lecture playback program in a mobile terminal in which a video lecture file including a synchronized data stored therein and a video lecture playback program for alpha blending the video data or the script data for playback are stored. (a) reading the lecture video data and playing the video data on the predetermined layer when the video lecture file play command is received; (b) checking a playback time of lecture video data currently being played when a script display command is received; (c) reading the script data corresponding to the confirmed playback time with reference to the identified playback time and the synchronization data and reproducing it to the other layer; and  (d) a method of providing a video lecture using a mobile terminal comprising applying alpha blending to a layer located in front of the layer. The method of claim 1, (pb1) receiving a basic menu display command before step (b) and applying alpha blending to the other layer to display a basic menu including a playback-related menu icon including a script display icon; (pb2) The method of providing a video lecture using a mobile terminal, further comprising the step of receiving the script display command. The method of claim 2, (e) identifying a playback time corresponding to any content to be switched, referring to the synchronization data when a switching command is input to any of the contents of the script; (f) moving and playing the lecture video data at the playback time identified in step (e), reading the script data at the playback time identified in step (e), and playing back the other layer; and (g) applying alpha blending to a layer located in front of the layer. The method of claim 3, The script data is a video lecture providing method using a mobile terminal, characterized in that the table of contents of the lecture. The method of claim 3, The script data is a video lecture providing method using a mobile terminal, characterized in that the syllabus is summarized.

Images