WO2003025816A1 - Systeme destine a fournir des contenus educationnels sur internet et procede associe - Google Patents

Systeme destine a fournir des contenus educationnels sur internet et procede associe Download PDF

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Publication number
WO2003025816A1
WO2003025816A1 PCT/KR2002/001617 KR0201617W WO03025816A1 WO 2003025816 A1 WO2003025816 A1 WO 2003025816A1 KR 0201617 W KR0201617 W KR 0201617W WO 03025816 A1 WO03025816 A1 WO 03025816A1
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WO
WIPO (PCT)
Prior art keywords
file
teaching
data
teaching file
information
Prior art date
Application number
PCT/KR2002/001617
Other languages
English (en)
Inventor
Heung-Chul Shin
Original Assignee
Xinics Inc.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from KR1020010081311A external-priority patent/KR20030025771A/ko
Application filed by Xinics Inc. filed Critical Xinics Inc.
Publication of WO2003025816A1 publication Critical patent/WO2003025816A1/fr

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Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
    • G09B5/00—Electrically-operated educational appliances
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
    • G09B7/00—Electrically-operated teaching apparatus or devices working with questions and answers

Definitions

  • the present invention relates to a system and method for providing educational contents over Internet, and more particularly, to a system and method for preparing and editing a teaching file, making a film of a lecture to generate moving-picture data, synchronizing the teaching file with the moving-picture data, and providing the teaching file and the moving-picture data through at least one registered server in order to provide educational contents over the Internet, and a computer-readable recording medium on which a program for executing the method in a computer is recorded.
  • online educational service over the Internet has been developed in three ways of: establishing a study course on a web site, producing a real-time/interactive solution, and downloading or streaming video/audio data.
  • the way of establishing a study course on a web site has been developed with a concept of a virtual educational institution.
  • This way of online educational service has been steadily developed as an on-demand type learning method in which lectures are established on a web, educational matters are managed, and learning materials based on online text (produced with HyperText Markup Language (HTML) mainly) are provided.
  • Study courses recently established on web sites are recognized in concept of a platform.
  • Online educational service has a trend of loading online multimedia contents on a platform base to transmit the contents to a learner.
  • the platform can provide feedback and virtual community for learners through, for example, a bulletin board, thereby increasing educational effect.
  • the real-time/interactive solution is a modification of a conference solution based on bidirectional video/audio transmission.
  • Online educational service using the real-time/interactive solution is far removed from the reality of an educational market and is lack in infrastructure, which limits its growth. Accordingly, companies that have developed technology concentrating on the real-time/interactive solution tend to change the subject of technical development into other types of solutions.
  • the entire content of a lecture is downloaded to a user's computer through a netwprk such as the Internet and is stored in a storage medium of the computer, and then the user can watch the lecture.
  • the amount of content including multimedia data such as moving picture data and audio data is very large, it takes a very long period of time for the user to download the multimedia data. Accordingly, this method is not proper to transmit the content of a long lecture.
  • the video/audio data streaming method uses the temporal characteristic of multimedia data. More specifically, instead of downloading the entire data at one time, while a small amount of data is continuously transmitted through a network, the transmitted data received by a user's computer is reproduced on the computer. Accordingly, compared to the download method, the streaming method is better in providing the content of a long lecture.
  • a web server providing educational contents encodes text-oriented data, which is fundamental information, using web browser language before transmitting it and transmits moving picture data and audio data in the form of a stream file in real time.
  • multimedia data used to clarify information has been restrictively used due to the limitation of network bandwidth.
  • multimedia data is used to embellish the form of content as means for stimulating a user's interest rather than progressively used to transmit educational information, so the multimedia data is simply embedded in the content and is reproduced for a short period of time. Therefore, development of Internet contents for education, which can provide various educational effects and can be smoothly transmitted over a network, is desired.
  • a professional lecturer's lecture is usually dependent on the lecturer's action, tone, and writing on a board rather than a teaching material.
  • Professional lecturers are usually accustomed to offline lectures but are not accustomed to online lectures, so it is difficult to produce the content of a professional lecturer's lecture using a computer.
  • the lecture content is conventionally produced using a computer, a lecturer is separated from the preparation of a teaching material and an operation performed after a lecture. Accordingly, the lecture has a tendency of one-sided transmission, and a learner's participation is totally blocked. Therefore, a system for providing an educational solution, which can absorb the characteristics of offline education into an Internet education system and make up for the defects of the offline education, is desired.
  • an object of the present invention to provide a system and method for providing educational contents over Internet, which can provide an environment in which a lecturer can produce a material necessary for a lecture in person, deliver a lecture using the produced material, and produce educational content synchronized with moving picture and audio data, and a computer-readable recording medium on which a program for executing the method in a computer is recorded.
  • a system for providing educational contents over Internet can provide an environment in which a lecturer can produce a material necessary for a lecture in person, deliver a lecture using the produced material, and produce educational content synchronized with moving picture and audio data, and a computer-readable recording medium on which a program for executing the method in a computer is recorded.
  • the system includes a teaching file preparing unit, a teaching file preparing unit, which loads with data files including a multimedia file and a document editor file, converts the loaded files into predetermined formats according to the characteristics of the files or captures window objects, edits the converted files or the captured window objects into at least one frame-based network document by embedding the converted files or the captured window objects into, extending or linking the converted files or the captured window objects to the frame-based network document, and receives and stores network document information; a teaching file execution unit, which executes the network document generated from the teaching file preparing unit, controls the progression of the network document in units of frames, creates an annotation object, links the annotation object to the network document by performing an operation on annotation-object window region data, thereby synchronizing the progression of the network document with the annotation object, receives and stores synchronized network document information, and includes a connection unit for transmitting synchronizing information and annotation object data; a teaching file encoding unit, which receives video/audio data from a video/audio input device, encodes the video
  • a teaching file preparing unit loads with or capturing data file and converts the data file into at least one frame-based network document or edits a network document by embedding the data file into, extending or linking the data file to the network document.
  • a teaching file encoding unit receives lecture moving picture data from a video/audio input device and encodes the lecture moving picture data.
  • a teaching file execution unit executes the network document in units of frames, generates an annotation object, and synchronizes the progression of the network document with the annotation object.
  • the teaching file encoding unit synchronizes the lecture moving picture data with the synchronized network document and combines the lecture moving picture data, the synchronized network, document into a single network media file, and generates the single network media file as lecture content.
  • a teaching file database system registers the network document, the synchronized network document, and the network media file as teaching files, sets at least one server corresponding to a transmission format of each teaching file, searches a teaching file corresponding to the server, and provides the searched teaching file to the server.
  • FIG. 1 is a block diagram of a system for providing educational contents over Internet according to the present invention.
  • FIG. 2 is a block diagram of a teaching file preparing unit of a system for providing educational contents over Internet according to the present invention.
  • FIG. 3 is a block diagram of a teaching file execution unit of a system for providing educational contents over Internet according to the present invention.
  • FIG. 4 is a block diagram of a teaching file encoding unit of a system for providing educational contents over Internet according to the present invention.
  • FIG. 5 is a block diagram of a teaching file editing unit of a system for providing educational contents over Internet according to the present invention.
  • FIG. 6 is a block diagram of a teaching file DB system of a system for providing educational contents over Internet according to the present invention.
  • FIGS. 7A and 7B illustrate the table structures of databases included in the teaching file DB system of a system for providing educational contents over Internet according to the present invention.
  • FIG. 8 shows an example of a user interface screen provided by the teaching file execution unit of a system for providing educational contents over Internet according to the present invention.
  • FIGS. 9A through 9C are flowcharts of a method for providing educational contents over the Internet according to the present invention.
  • an educational contents providing system for providing educational contents over Internet (hereinafter, referred to as an educational contents providing system) according to the present invention will be described in detail with reference to the attached drawings.
  • an educational contents providing system 100 includes a teaching file preparing unit 110, a teaching file execution unit 120, a teaching file encoding unit 130, a teaching file editing unit 140, and a teaching file database (DB) system 150.
  • the elements of the educational contents providing system 100 can be distributedly embodied in a plurality of computer systems. In this case, the computer systems are connected through a network to one another and organically operate.
  • the teaching file preparing unit 1 10, the teaching file execution unit 120, and the teaching file editing unit 140 can be separately embodied in the computer of a lecturer, who edits and produces a teaching file and takes charge of a relevant class.
  • each of the teaching file producers can independently produce a teaching file.
  • the teaching file editing unit 140 can be separately embodied in each of the computers of an application teaching file producers (each of whom may be a lecturer taking charge of a corresponding class), after receiving a teaching file produced by the teaching file preparing unit 1 10, each of the application teaching file producers can independently edit the teaching file. It is preferable to independently embody the teaching file encoding unit 130 in a computer with a video input unit.
  • the teaching file DB system 150 is connected to one or more computers (i.e., servers) 200 through 500 specialized in particular functions.
  • the teaching file DB system 150 searches various data and provides them to the servers 200 through 500.
  • the teaching file DB system 150 provides relevant data to the moving picture streaming server 200, the web server 300, the log server 400, and the educational broadcast server 500 and provides a teaching file displayer to a learner terminal 700 accessing one of the servers 200 through 500 so that a learner can view data provided for learning.
  • the servers 200 through 500 are connected to the learner terminal 700 through Internet 600.
  • the teaching file preparing unit 110 includes a file manager 111 and a file creator 116.
  • the file manager 111 includes an operating space allocating section 112, a file compressor section 113, a file storing section 114, and a file information input/output section 115.
  • the file creator 116 includes a slide creator section 118, a slide controller section 117, and a content creator section 119.
  • the content creator section 119 includes a data file loader/converter section 119a, an object capturer section 119b, and a text editor 119c.
  • the operating space allocating section 112 allocates a memory space, in which an operation is performed to produce a teaching file, in a computer and activates the file creator 116 to operate.
  • the file compressor section 113 compresses a teaching file, which has been edited into at least one frame-based network document by the file creator 116, into an Archive file for transmission through a network.
  • the Archive file is a compressed file which can be loaded on and executed in the teaching file execution unit 120 and the teaching file editing unit 140.
  • the file storing section 114 stores compressed files in a directory selected by a teaching file producer from directories on a storage medium.
  • the file information input/output section 115 receives and displays teaching information including the subject, lecturer, and summary of a lecture based on the teaching file.
  • the file information input/output section 115 also embeds the teaching information into the teaching file so that the teaching information can be displayed on the learner terminal 700 using the teaching file displayer. Consequently, the teaching file preparing unit 110 stores the teaching file in a predetermined format, e.g., *:cpz.
  • "cpz" is an extension
  • "*" is a file name summarizing the teaching information.
  • the slide creator section 118 creates or deletes a frame-based slide into which a data file can be embedded.
  • the slide controller section 117 moves or selects a frame-based slide and designates the sequence of the frame-based slide.
  • the frame-based slide can be created as, for example, a Hyper Text Markup Language (HTML) page.
  • HTML Hyper Text Markup Language
  • the data file loader/converter section 119a of the content creator section 119 loads with a data file including a multimedia file and a document editor file and converts the data file into a predetermined format according to the characteristics of the data file.
  • the data file loader/converter section 119a converts files prepared by document-editing programs, such as Hangul, Hunminjeongeum, MS Word, and Powerpoint, into an HTML page.
  • the data file loader/converter section 119a can load a predetermined web page using a uniform resource locator (URL) of an existing web site and convert it.
  • URL uniform resource locator
  • the data file loader/converter section 119a loads with multimedia files, such as a moving picture file (e.g., a *.asf file or *.wmv file), an audio file, and a flash file (e.g., a *.swf file), embeds a corresponding viewer to each multimedia file to create an HTML page, and embeds a video file, such as JPEG or GIF, into each multimedia file to create an HTML page.
  • multimedia files such as a moving picture file (e.g., a *.asf file or *.wmv file), an audio file, and a flash file (e.g., a *.swf file)
  • embeds a corresponding viewer to each multimedia file to create an HTML page
  • a video file such as JPEG or GIF
  • the object capturer section 119b of the content creator section 119 captures an entire background screen, a window screen, or a screen in a predetermined area into a predetermined video file and links the video file to a relevant HTML page.
  • the object capturer section 119b can capture a moving picture on a window as a window object and embed the captured moving picture into an HTML page.
  • the object capturer section 119b includes an application program recording function, through which a moving picture displayed on a computer monitor using an application program is captured (recorded) and made into a slide (i.e., a frame-based HTML page).
  • the application program recording function can be used to, for example, explain how to use a particular application program.
  • the text editor section 119c of the content creator section 119 can prepare and embed notes and questions into a slide.
  • the teaching file execution unit 120 executes the teaching file, records a lecturer's writing on a board (referred to as annotation), edits synchronizing information for, e.g., progression of a slide (including execution of a file embedded into the slide) and an animation effect, and can control the lecturing appearance of a lecturer to be created into a moving picture file in connection with the teaching file encoding unit 130.
  • annotation a lecturer's writing on a board
  • edits synchronizing information for, e.g., progression of a slide (including execution of a file embedded into the slide) and an animation effect, and can control the lecturing appearance of a lecturer to be created into a moving picture file in connection with the teaching file encoding unit 130.
  • the lecturer's annotation is recorded in the teaching file, which has been prepared by the teaching file preparing unit 110, by the teaching file execution unit 120, and then synchronizing information for synchronizing the content of the teaching file with the lecturer's appearance and voice is embedded into the teaching file by the teaching file execution unit 120, so that an educational effect allowing a learner to participate in the class can be accomplished.
  • the teaching file execution unit 120 includes a file manager 122 and an executed file editor 124.
  • the file manager 122 includes an operating space allocating section 122a, a file compressor section 122b, a file storing section 122c, and a file information input/output section 122d.
  • the executed file editor 124 includes a slide controller section 124a, a slide synchronizing information editor section 124b, an annotation editor section 124c, an encoder setting section 124d, and a transmitter section 124e.
  • the operating space allocating section 122a allocates a memory space, in which an operation is performed to execute and edit a teaching file, in a computer by loading a selected teaching file prepared by the teaching file preparing unit 110 onto a memory of the computer and activates the executed file editor 124 to operate.
  • the file compressor section 122b compresses a teaching file, which has been executed and edited, into an Archive file for transmission through a network.
  • the Archive file is a compressed file which can be transmitted to the teaching file encoding unit 130 or loaded on and executed in the teaching file editing unit 140.
  • the file storing section 122c stores compressed files in a directory selected by a teaching file producer from directories on a storage medium.
  • the file information input/output section 122d receives and displays teaching information including the subject, lecturer, and summary of a lecture based on the executed and edited teaching file.
  • the file information input/output section 122d also embeds the teaching information into the teaching file so that the teaching information can be displayed on the learner terminal 700 using the teaching file displayer.
  • the teaching file execution unit 120 stores the teaching file in a predetermined format, such as *.pdz.
  • "pdz” is an extension
  • "*" is a file name summarizing the teaching information.
  • the encoder setting section 124d is used to set encoder information such as whether the teaching file execution unit 120 operates in connection with the teaching file encoding unit 130 and the position of the teaching file encoding unit 130. For example, if the teaching file execution unit 120 and the teaching file encoding unit 130 are embodied in one computer, a "local encoder” is set. Otherwise, a "remote encoder” is set, and the Internet protocol (IP) address of a computer, in which the teaching file encoding unit 130 is embodied, is input.
  • IP Internet protocol
  • the teaching file execution unit 120 does not operate in connection with the teaching file encoding unit 130, the teaching file execution unit 120 cannot provide the contents of a lecture including a moving picture through the moving picture streaming server 200, but can provide a teaching file to which only slide progression information and annotation object synchronizing information are added.
  • the functions of elements of the teaching file execution unit 120 will be described on condition that the teaching file execution unit 120 operates in connection with the teaching file encoding unit 130.
  • the slide controller section 124a executes the loaded teaching file or stops (or temporarily suspends) the execution of the teaching file and controls the movement of each slide.
  • the teaching file execution/stop function can control a moving picture input/storing function of the teaching file encoding unit 130.
  • the slide synchronizing information editor section 124b records execution time information according to a lecturer's execution of files, which are embedded into, extended or linked to a frame-based teaching file, during the progress of a lecture, together with the slide progression information. Accordingly, a learner can follow the lecture watching the moving picture of the lecturer and slides that are automatically progressed and executed on his/her terminal.
  • a teaching file displayer provided to the learner terminal 700 has a separate slide control function.
  • the annotation editor section 124c generates an annotation object linked to a frame-based slide.
  • the annotation object may be text, figure, color, or graphic object for a visual effect, which is executed on a relevant slide at proper time during the progress of the slide and can be added or removed.
  • the annotation object will be described in detail below.
  • the annotation editor section 124c provides an annotation tool (i.e., a user interface) displaying functions, such as an eraser function erasing an annotation object, a pen function drawing a free-form curve, a figure drawing function drawing a straight line, quadrangle, circle, and oval, a selection function selecting the thickness and color of a line, a symbol insertion function, a text input function, and a luminous effect function highlighting a text and figure, to a lecturer.
  • the annotation editor section 124c receives data (that is input by the lecturer using a mouse, an electronic pen, or the like) and sets at least one window region for an annotation object (referred to as an annotation-object window region) to form annotation-object data.
  • the annotation editor section 124c ORs a plurality of annotation-object data, logically subtracts data in an area corresponding to an annotation-object window region from a frame-based slide file in a window region, and links the result of ORing the annotation-object data to the subtracted data area so that the result of ORing is displayed in the subtracted data area.
  • An annotation object has a shape, such as a free-form curve, straight line, quadrangle, or a circle and information, such as thickness and color.
  • a slide has scroll information of each frame and time information on a time when the annotation object is drawn. Accordingly, a course of drawing the annotation object and the visual effects of the annotation object can be reproduced.
  • the transmitter section 124e transmits execution/stop information regarding the teaching file to the teaching file encoding unit 130 to control input of a moving picture. After the execution of the teaching file ends, the transmitter section 124e transmits slide progression synchronizing information, execution synchronizing information of a slide link file, and annotation object data to the teaching file encoding unit 130.
  • the teaching file encoding unit 130 includes a session setting section 131 , a file converter section 133, a file storing section 132, an external data input section 134, an encoding controller section 135, and a profile manager section 136.
  • the teaching file encoding unit 130 is embodied in a computer equipped with a universal serial bus (USB) camera or a video/audio input device connected to a moving picture capture card.
  • the computer is equipped with a separate universal encoder such as MS Encoder.
  • the session setting section 131 sets an input device, an output path, and a profile to allocate an encoding operation space in advance.
  • the teaching file encoding unit 130 provides a camera test function by displaying an input screen and an output screen resulting from applying the profile to the input screen and allows a recording process of a lecture to be checked through a "preview" window.
  • the external data input section 134 receives data from the video/audio input device.
  • the encoding controller section 135 receives a start or stop (or suspension) command and controls encoding.
  • the profile manager section 136 is used to set and manage lecture image recording quality and encoding (compression) quality.
  • the file converter section 133 stores the encoded file in the form of, for example, "*.asf, receives the synchronizing time information and the annotation object data from the teaching file execution unit 120, and synchronizes the encoded data with the annotation object data based on the synchronization time information.
  • the file converter section 133 embeds the synchronization time information into the encoded file and compresses the encoded file and the annotation object data into a single lecture content file (which can be stored in the form of a file having an extension "esz").
  • the compressed file is stored as a file in an output path set by the session setting section 131. Consequently, the lecture content file includes lecture moving picture data, teaching file data, annotation object data, and synchronizing (time) information data.
  • teaching files generated by the teaching file preparing unit 110, the teaching file execution unit 120, and the teaching file encoding unit 130 include various data position information and synchronizing time information.
  • the educational content providing system 100 includes the teaching file editing unit 140 to allow the teaching file to be re-edited before being provided to a learner through the Internet 600.
  • each of the teaching files generated by the teaching file preparing unit 110, the teaching file execution unit 120, and the teaching file encoding unit 130 can be independently provided to a learner at the request of the learner and does not need to go through all of the above-described processes.
  • the teaching file editing unit 140 includes a file manager 141 and a synchronizing information editor 146.
  • the file manager 141 includes an operating space allocating section 142, a file compressor section 143, a file storing section 144, and a file information input/output section 145.
  • the operating space allocating section 142 loads with a teaching file (one of the input/output files of the teaching file preparing unit 110, the teaching file execution unit 120, and the teaching file encoding unit 130, that is, one among a data file, a network document, a synchronized network document, and a network media document), allocates an operating space for the loaded teaching file to perform synchronous edition, and activates the synchronizing information editor 146.
  • the file compressor section 143 compresses the synchronous-edited teaching file received from the synchronizing information editor 146 into an Archive file for transmission through a network.
  • the Archive file can be loaded and executed using the teaching file displayer.
  • the file storing section 144 stores compressed files in a directory selected in a file storage section, e.g., a storage medium, by a teaching file editor.
  • the file information input/output section 145 receives and displays teaching information including the subject, lecturer, and summary of a lecture based on the edited teaching file.
  • the file information input/output section 145 also embeds the teaching information into the teaching file so that the teaching information can be displayed on the learner terminal 700 using the teaching file displayer.
  • the teaching file execution unit 120 stores the teaching file in a predetermined format, such as *.esz.
  • "esz" is an extension
  • "*" is a file name summarizing the teaching information.
  • the synchronizing information editor 146 synchronizes a frame-based network document with an annotation object using progression information of the frame-based network document and link time information of the annotation object.
  • the synchronizing information editor 146 synchronously edits a multimedia file, which is embedded into, extended to, or linked to the frame-based network document, and the lecture moving picture data recorded by the teaching file encoding unit 130. Accordingly, the synchronizing information editor 146 allows individual objects to be more accurately connected to one another according to time information. To achieve accurate time synchronization among the objects, the synchronizing information editor 146 provides various user interfaces as follows.
  • the synchronizing information editor 146 can provide an information input/output window, on which synchronized slides (frame-based network documents), multimedia files, and annotation objects including graphic effects are displayed on a time line, and time synchronization can be controlled through a mouse drag type user interface.
  • the synchronizing information editor 146 can provide an information input/output window, on which the icons, identification numbers, titles, and synchronization time information of the individual slides, multimedia files and annotation objects are displayed.
  • an information input/output window on which the icons, identification numbers, titles, and synchronization time information of the individual slides, multimedia files and annotation objects are displayed.
  • the execution time instants of a relevant slide, annotation object, and multimedia file are received, and synchronous editing is performed.
  • the teaching file DB system 150 is equipped with a general solution for controlling transmission and reception of network data including web pages using TCP/IP protocols between a server and a DB, between a server and the Internet, and between a server and the learner terminal 700.
  • the teaching file DB system 150 generates lecture information to register a teaching file including a data file, a network document, a synchronizing network document, and a network media file, sets at least one server corresponding to the transmission format of the teaching file, and transmits the teaching file to the server.
  • the teaching file DB system 150 will be described in detail below with reference to FIG. 6.
  • the teaching file DB system 150 includes an environment setting section 151 , a teaching file manager section 152, a lecture information manager section 153, a teaching file search section 154, and a manager registration section 155.
  • the teaching file DB system 150 can be embodied in an existing server system such as a Windows NT/2000 server, an MS SQL 7/2000 server, or an Oracle DB server.
  • the environment setting section 151 needs to receives setting information required in a typical relational DB management system (RDBMS) from a manager and set the system.
  • RDBMS relational DB management system
  • the teaching file DB system 150 can manage a storage medium in a computer in which each of the units 110 through 140 of the educational content providing system 100 is embodied. For example, when a teaching file is registered, the teaching file DB system 150 can receive a file position and file information and can search and manage the teaching file.
  • the teaching file DB system 150 includes a separate data storage section for storing the setting information input by the manager as well as teaching files.
  • the environment setting section 151 sets the servers, i.e., the web server 300, the moving picture streaming server 200, the log server 400, and the educational broadcast server 500 and provides a teaching file required by each server.
  • the moving picture streaming server 200 provides encoded lecture moving picture data to the learner terminal 700 through the Internet 600.
  • the log server 400 allows an authenticated learner to check a teaching schedule of each lecture.
  • the web server 300 provides a network document, a synchronized network document (including an annotation object), and a network media document to the learner terminal 700 on a web.
  • the educational broadcast server 500 unicasts annotation object data to the learner terminal 700.
  • the environment setting section 151 needs to receives setting information, such as a user account information, fundamental web site information, Internet information server (IIS) FTP information, simple mail transfer protocol (SMTP) information, data access authority information, broadcast startup time information, and transmission/reception time information of a network media file, from a manager.
  • the environment setting section 151 registers and manages various teaching file displayers, which can recognize and display various teaching files.
  • the teaching file displayers are equipped with different user interfaces depending on the types of data, such as an HTML page, a lecture information list, lecture moving picture data, annotation object data, and embedded/inserted/linked multimedia data, and the types of service. Accordingly, the teaching file displayers are registered by contents (of a registered teaching file).
  • the teaching file manager section 152 registers produced teaching files in a DB.
  • the teaching file manager section 152 generates an access position URL so that a learner can be provided with the teaching files.
  • the teaching file manager section 152 decomposes the ESZ file, uploads the moving picture contents to the moving picture streaming server 200, and uploads the slide teaching file to the web server 300.
  • the teaching file manager section 152 uploads a captured moving picture and recorded moving picture to the moving picture streaming server 200.
  • a teaching file When a teaching file is provided to a learner through the live broadcasting class management, a CPZ file or an existing PPT file instead of an ESZ file into which various data and files are re-edited and compressed is used. Accordingly, files generated from the teaching file execution unit 120 and the teaching file encoding unit 130 are provided to learners through corresponding servers in real time.
  • the educational broadcast server 500 transmits annotation object data in real time and does not operation during the on-demand class management.
  • a teaching file provided to the learner terminal 700 through the above arrangement can be displayed by a teaching file displayer based on slide progression information, annotation object data link information, and moving picture synchronizing information, etc.
  • the lecture information manager section 153 classifies information on teaching files to allow learners to easily select various teaching files and provides the classified information to each of the servers 200 through 500.
  • the lecture information manager section 153 receives information, such as group information of each teaching file (including information on a directory position in a storage medium, on-demand class registration information, and live broadcasting class registration information), a lecture title, a lecturer's name, a lecture date, a lecture summary, a total lecture duration, a file size, manager information, teaching file displayer registration information, and a file position (access position URL), from a manager and manages the teaching files based on the received information in order to manage on-demand classes and live broadcasting classes.
  • group information of each teaching file including information on a directory position in a storage medium, on-demand class registration information, and live broadcasting class registration information
  • a lecture title including information on a directory position in a storage medium, on-demand class registration information, and live broadcasting class registration information
  • lecture title including information on a directory position in a storage medium
  • Each of the servers 200 through 500 constructs content based on the lecture information provided from the lecture information manager section 153.
  • the teaching file search section 154 searches teaching files based on the lecture information.
  • the search function of the teaching file search section 154 can be used when a manager manages the teaching files and can be provided to a learner who wants to search lectures (i.e., teaching files) through a server.
  • the teaching file search section 154 can search not only the lecture information set by the lecture information manager section 153 and but also various teaching files such as network documents and lecture moving picture data using meta data regarding the teaching files generated from the teaching file preparing unit 110, the teaching file execution unit 120, the teaching file encoding unit 130, and the teaching file editing unit 140.
  • the manager registration section 155 is used to set manager information, such as an authentication number, a password, a personal information, and authority information (on authority to manage a teaching file provided to each server) in order to identify a manager and control the manager's access to the teaching file DB system 150, so that a manager panel function (i.e., data input/erasure function that registers teaching files and input lecture information for management of the teaching files) provided to a manager by the teaching file DB system 150 can be used by the manager. Accordingly, a manager is in a hierarchical structure. An upper-class manager can control a lower-class manager's access to the system.
  • FIGS. 7A and 7B illustrate the table structures of DBs included in the teaching file DB system 150 of the educational content providing system 100 according to the present invention.
  • the teaching file DB system 150 which is equipped with at least one teaching file displayer for displaying a teaching file having a predetermined format on the learner terminal 700, registers a teaching file together with teaching file displayer information so that when a server provides the teaching file to the learner terminal 700 on a platform, the corresponding teaching file displayer is also provided.
  • a teaching file displayer indicates a viewer which can execute a file having a proper format, i.e., an Archive compressive file format, into which the educational content providing system 100 converts a teaching file for network transmission.
  • the teaching file may be constructed in the form of an HTML file.
  • the teaching file displayer does not need to be downloaded to and installed in the learner terminal 700.
  • the teaching file displayer includes at least one window for displaying a teaching file including lecture moving picture data, a network media document, and annotation object data and a user interface to allow a learner to control the playback of the teaching file.
  • the teaching file displayer displays teaching file list information (lecture contents information) and has a personal annotation function, a function of editing a text and making a memorandum, and a teaching file printing function.
  • teaching file list information electronic contents information
  • Different functions are provided to a learner depending on the type of teaching file displayer registered in the teaching file DB system 150, and the execution of each function can be controlled by a learner.
  • Each of the teaching file preparing unit 1 10, the teaching file execution unit 120, the teaching file encoding unit 130, the teaching file editing unit 140, and the teaching file DB system 150 includes at least one user interface among an execution menu type user interface, an execution button type user interface, an information input/output window type user interface, a mouse drag type user interface, and a display window type user interface in order to receive a command from a lecture content producer and display the result of data processing.
  • FIG. 8 shows an example of a user interface screen for the elements of the teaching file execution unit 120 of an educational content providing system 100.
  • an execution menu type user interface 81 is provided for the file manager 122 and the transmitter section 124e.
  • the execution menu type user interface 81 and display window type user interface are provided for the slide synchronizing information editor section 124b.
  • the execution menu type user interface 81 and display window type user interface are provided for the slide synchronizing information editor section 124b.
  • display window type user interface including a slide list window 82 and a slide display window 83
  • execution button type user interfaces 84 and 85 are provided.
  • a display window type user interface 86 is provided for the file information input/output section 122d.
  • the functions of the educational content providing system 100 of the present invention can be made into a program, which can be executed on a computer, and can be realized in a universal digital computer in which the program can be executed using media used in the computer.
  • the media include a magnetic storage medium (e.g. a ROM, a floppy disc, or a hard disc), an optical reading medium (e.g., CD-ROM, or DVD), and carrier waves (for example, transmitted through Internet).
  • a magnetic storage medium e.g. a ROM, a floppy disc, or a hard disc
  • an optical reading medium e.g., CD-ROM, or DVD
  • carrier waves for example, transmitted through Internet
  • FIGS. 9A through 9C are flowcharts of a method for providing educational contents over the Internet according to the present invention.
  • the teaching file preparing unit 110 loads with an existing document editor file and converts it into at least one frame-based network document (e.g., an HTML page displayed in the form of a slide) or generates a new network document without content in step S100.
  • the teaching file preparing unit 1 10 loads with a multimedia file including graphics, moving picture, and voice in step S105 or captures the multimedia file as a window object in step S1 10 and edits the network document by embedding the multimedia file into the network document, extending or linking the multimedia file to the network document in step S115.
  • an entire background screen, a window screen, and a screen in a predetermined area are captured and converted into image files, and the image files are embedded into an HTML page.
  • an operating area on a background screen can be captured as a moving picture and then embedded into an HTML page.
  • a lecturer inputs slide information and questions for each produced slide in step S120 and stores the completed network document together with lecture information, such as information on himself/herself, lecture summary, and lecture subject, in step S125. Thereafter, an encoding profile is set in the teaching file encoding unit 130 in step S130. Then, the teaching file encoding unit 130 is connected to a video/audio input device and stands by for recording a lecture in step S135. The lecturer executes the network document generated by the teaching file preparing unit 1 10 using the teaching file execution unit 120 and progresses a lecture in step S140.
  • the lecturer can control the functions of the teaching file encoding unit 130 through the slide controller section 124a of the teaching file execution unit 120 or can directly control the teaching file encoding unit 130.
  • the teaching file encoding unit 130 receives lecture moving picture data and controls encoding in step S145, and the teaching file execution unit 120 executes the network document, controls the progression of the network document in units of frames, generates annotation objects, and synchronizes the progression of the network document with the annotation objects in step S150.
  • the lecturer can control slides.
  • the lecturer can settle the sequence of slides, and erase and move slides.
  • the lecture can generate annotation objects including display effects and sequentially link them to slides.
  • the annotation objects include display effects, such as text overlap, addition/erasure of various figures, changing in color and size of slide screen structure, and setting of the depth of a slide.
  • the teaching file execution unit 120 uploads the lecture moving picture data to the moving picture streaming server 200, the network document to the web server 300, and the annotation object data to the educational broadcast server 500 so that the teaching file can be provided to the learner (i.e., the learner terminal 700) in real time in step S165.
  • the teaching file execution unit 120 stores the synchronized network document in a predetermined directory together with document information in step S170 and transmits the annotation object data and synchronizing information to the teaching file encoding unit 130 in step S175.
  • the teaching file encoding unit 130 receives the annotation object data and the synchronizing information and synchronizes the encoded lecture moving picture data with the annotation object data based on the synchronizing information and compresses and stores the synchronized lecture moving picture data and the network document in a predetermined directory, thereby constructing a single lecture content (i.e., a network media file) in step S180.
  • the constructed lecture content is a network document including multimedia data for providing various educational effects to a learner.
  • the lecture content includes connection information of various files, and the connection information includes time information regarding the progression of the lecture.
  • the educational content providing system 100 of the present invention provides the teaching file editing unit 140 in order to correct an error in the lecture content and allow new content to be added to the lecture content.
  • the network media file can be immediately registered in the teaching file DB system 150 and then provided to a relevant server, or various files can be integrated and re-edited using the teaching file editing unit 140, and then registered in the teaching file DB system 150.
  • the teaching file editing unit 140 loads with one among teaching files, i.e., the network document, the synchronized network document, and the network media file in order to select a document to be edited in step S190.
  • the teaching file editing unit 140 functions mainly to synchronously edit a teaching file, but also has some of the functions of the teaching file preparing unit 110 and the teaching file execution unit 120 considering the teaching file editing unit 140 is used in a final editing process.
  • step S195 the teaching file editing unit 140 loads with or captures a data file, embeds the data file into the selected document, extends or links the data file to the selected document, and generates annotation objects in step S200. This operation has been described in detail above.
  • the teaching file editing unit 140 synchronizes the lecture moving picture data, the annotation objects including display effects, the frame-based network document, and the embedded, extended, or linked data files in step S205.
  • the teaching file DB system 150 registers, stores, and manages the teaching file, i.e., the network document, the synchronized network document, or the network media file in step S210.
  • servers such as the moving picture multimedia server 200, the web server 300, and the educational broadcast server 500, are set in the teaching file DB system 150 according to the transmission format of the teaching file.
  • the teaching file DB system 150 determines which server suits contents in the teaching file in step S215, uploads the network document including the annotation object data to the web server 300 in step S220, or uploads the moving picture data to the moving picture streaming server 200 in step S225 so that the teaching file can be transmitted to the learner terminal 700 when the lecture is provided to the learner. Thereafter, if a learner accesses a server, registers for a class, and begins taking a lecture, the server provides an access position URL generated in response to the registration to the learner to allow the learner to access a teaching file.
  • a teaching file displayer is also transmitted to the learner.
  • the function of conventional educational content producing tool having an integrated format is divided into a series of processes, so a lecturer can simultaneously produce and manage contents.
  • problems in processing data due to the time limit, degradation in quality, and the dissipation of time can be overcome.
  • a computer moving picture and audio data can be transmitted in real time, educational contents of a good quality can be provided with a small amount of cost and labor.
  • a lecturer can prepare a teaching file for a lecture in advance and can edit the teaching file and add various effects to the teaching file while he/she lectures.
  • moving picture data of the lecturer can be provided in synchronization with the teaching file, so a learner can be inspired to study.
  • a learner can be provided with a viewer automatically executed according to a teaching file, so he/she can use various annotation functions, a storing function, and a printing function. Accordingly, the learner can learn easily and has the teaching file as a learning material.

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  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Business, Economics & Management (AREA)
  • Physics & Mathematics (AREA)
  • Educational Administration (AREA)
  • Educational Technology (AREA)
  • General Physics & Mathematics (AREA)
  • Electrically Operated Instructional Devices (AREA)

Abstract

L'invention concerne un système destiné à fournir des contenus éducationnels sur Internet et comprenant une unité de préparation de fichier d'apprentissage permettant de charger un fichier de données et d'éditer ce fichier de données en au moins un document de réseau basé sur des cadres en vue de préparer un fichier d'apprentissage, une unité d'exécution de fichier d'apprentissage destinée à exécuter le fichier d'apprentissage préparé par l'unité de préparation de fichier d'apprentissage, à produire des données d'objet d'annotation, et à produire des informations de synchronisation pour une image en mouvement, une unité de codage de fichier d'apprentissage servant à recevoir et coder les données d'image en mouvement reçues en provenance d'un dispositif d'entrée vidéo/audio, et à produire un fichier multimédia réseau par synchronisation des données d'image en mouvement codées, du fichier d'apprentissage et des données d'objet d'annotation au moyen des informations de synchronisation transmises à partir de l'unité d'exécution de fichier d'apprentissage, ainsi qu'un système de base de données de fichiers d'apprentissage permettant d'enregistrer les informations de conférence pour chaque fichier multimédia réseau et de transférer ce fichier multimédia réseau vers un terminal d'étudiant par l'intermédiaire d'au moins un serveur correspondant à un format de transmission dudit fichier multimédia réseau.
PCT/KR2002/001617 2001-09-21 2002-08-27 Systeme destine a fournir des contenus educationnels sur internet et procede associe WO2003025816A1 (fr)

Applications Claiming Priority (4)

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KR20010058676 2001-09-21
KR2001/58676 2001-09-21
KR1020010081311A KR20030025771A (ko) 2001-09-21 2001-12-19 인터넷상의 교육용 컨텐츠 제공 시스템 및 그 방법
KR2001/81311 2001-12-19

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WO2005036500A1 (fr) * 2003-09-16 2005-04-21 Rudo Von Leonhardi Systeme et procede de formation a la conduite et utilisation correspondante
CN100412852C (zh) * 2004-05-10 2008-08-20 北京大学 网络上的多种媒体的同步合成存储发布系统及操作该系统的方法
EP1949350A1 (fr) * 2005-10-21 2008-07-30 Agency for Science, Technology and Research Codage, stockage et decodage de donnees d'enseignement de diagnostics radiologiques
EP1949350A4 (fr) * 2005-10-21 2011-03-09 Agency Science Tech & Res Codage, stockage et decodage de donnees d'enseignement de diagnostics radiologiques
WO2007049999A1 (fr) * 2005-10-26 2007-05-03 Timetomarket Viewit Sweden Ab Systeme d'intermediation d'informations
EP1783598A1 (fr) * 2005-11-02 2007-05-09 Hsin-Tung Tseng Station de base d'enseignement intégré
WO2010061985A1 (fr) * 2008-11-25 2010-06-03 Sunny Graphy Co., Ltd. Système, serveur et procédé de fourniture de programme éducatif
US8527581B2 (en) 2009-10-30 2013-09-03 Samsung Electronics Co., Ltd. Apparatus and method for synchronizing E-book content with video content and system thereof
US9009224B2 (en) 2009-10-30 2015-04-14 Samsung Electronics Co., Ltd. Apparatus and method for synchronizing E-book content with video content and system thereof
US9467496B2 (en) 2009-10-30 2016-10-11 Samsung Electronics Co., Ltd. Apparatus and method for synchronizing E-book content with video content and system thereof
FR2992445A1 (fr) * 2012-06-22 2013-12-27 Snecma Procede de synchronisation de donnees d'algorithmes de calculateurs asynchrones d'aeronef
US10356178B2 (en) 2012-06-22 2019-07-16 Safran Aircraft Engines Method of synchronizing data for algorithms of asynchronous computers of an aircraft

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