• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The present invention saves handwritten information recorded on an electronic board and voice information of a user on a computer in real time, and transmits the stored contents to a plurality of computers through a data network or a recording medium, and immediately replays the electronic lecture. A method and apparatus for storing / reproducing data in a system. The data storage / playback method of the electronic lecture system transmits handwritten information recorded on the electronic board and voice information of a user input through a microphone to a computer system in real time through each signal processing and stores them in a memory. Doing; Copying / transmitting the stored handwritten information and voice information to at least one or more computer systems that exist remotely through a download or recording medium through a data network; and reproducing the transmitted handwritten information and voice information on one or more computer systems It is achieved by including.
    公开号:KR19990074180A
    申请号:KR1019980007602
    申请日:1998-03-07
    公开日:1999-10-05
    发明作者:허선；이영만；김태경
    申请人:유환기；주식회사 웅진미디어；
    IPC主号:
    专利说明:

    Method and device for data storage / playback of electronic lecture system
    The present invention relates to an electronic lecture system, and more particularly, a user's lecture contents, that is, handwritten information and voice information, are stored in a computer system in real time, and the downloaded contents are copied through a recording medium or downloaded through a communication network. The present invention relates to a method and apparatus for storing and reproducing data in an electronic lecture system, which enables playback in a computer of a person to be played back regardless of time.
    In general, a method of storing and reproducing the contents of a user's lecture in real time in a lecture or education in an educational institution, a public institution, or a company is a method of recording and reproducing by a video camera.
    Video cameras are video recording / playback media that can record video and play them on a TV. In general, video cameras are classified into a VHS full type and an 8mm type according to a tape width for storing an image. The VHS full type uses a half-inch video tape that is the same as that used in VCRs, so you can insert a video tape into your VCR without having to connect your video camera to your TV. In addition, since it is used by supporting the shoulder, a stable image can be obtained, but there is a disadvantage that it is inconvenient to carry for a long time due to its large volume.
    On the other hand, the 8mm type video camera is more portable than the VHS full type and can be handled with one hand.
    Unlike general cameras that shoot in a stationary state, such video cameras have a characteristic of moving along a subject, and thus, a user's manipulation ability greatly affects image quality and image.
    1 shows recording and playback of a video using such a video camera. As shown in the drawing, the subject 10 is recorded by the video camera 20 having a recording function, and the recorded image is provided to the user through an image output device 30 such as a monitor.
    At this time, a plurality of recorded video tapes can be copied to the same tape using a recording apparatus, and multiple people can simultaneously play them using the copied tapes to watch recorded lecture information.
    However, the method of storing and reproducing lecture information by the video camera according to the related art described above has a very limited storage capacity of a recording tape for storing lecture contents, that is, a magnetic tape, and requires recording for a long time. There is a problem in that the replacement of a plurality of magnetic tapes is performed, and there is a problem in that the lecture contents cannot be recorded during the replacement time of the magnetic tapes.
    In addition, when reproducing the magnetic tape recorded lecture content, a separate recording and playback device is required, and when a large number of people play the magnetic tape to watch the lecture has a cumbersome point to copy the magnetic tape one by one.
    In addition, the recording process by the video camera has a problem that can not record the lecture content clearly, the quality of the picture is not clear when playing several times, the contents of the lecture can not be clearly recognized.
    In addition, the user of the video camera when shooting, there is not only a structural limitation that can not take themselves, there was a problem that you can not see the shooting content in the field immediately.
    Accordingly, the present invention excludes a method of recording lecture content by a video camera in the above-described conventional technology, and is recorded by a user's voice information and a handwriting information on a tablet (tablet: tablet) in a personal computer that is currently used in general. The user can save the information in real time, download the stored information through the data communication network or copy the data by means of storage, as well as project computer-generated teaching data or presentation data on the electronic blackboard as needed. It is an object of the present invention to provide a method and apparatus for storing / reproducing data in an electronic lecture system, which enables playback and verification of lecture contents in a personal computer.
    1 is a block diagram of storing / reproducing conventional lecture information by a video camera in general,
    2 is a block diagram showing a data storage / playback device of the electronic lecture system according to the present invention,
    3 is a file format display diagram of the electronic lecture data of FIG. 2;
    4 is a format display diagram showing a record structure of handwritten information of FIG. 3;
    5 is a flowchart illustrating a storage / playback process of the electronic lecture system according to the present invention.
    <Description of the symbols for the main parts of the drawings>
    100: electronic blackboard 102: interface unit
    104: computer system 105: projection
    106 to 106n: first to nth computer system
    According to an aspect of the present invention, there is provided a data storing / reproducing method of an electronic lecture system, which includes handwriting information recorded on an electronic board and voice information of a user input through a microphone. Transmitting the data to a computer system in real time and storing the data in a memory; Copying / transmitting the stored handwritten information and voice information to at least one computer system remotely via a download or recording medium through a data network; and reproducing the transmitted handwritten information and voice information on the one or more computer systems. It includes a step.
    Preferably, the signal processing is characterized in that the handwriting information and the voice information is encoded and output to a modem or a data network.
    Preferably, the handwriting information may include a type, color, width, time of recording, a start position and a start time and an end time of the pen click, an end position of the pen click, a pointer to a teaching image, and a computer. It is characterized in that the absolute time of the included.
    Preferably, the handwriting information and voice information are configured as a single file including a file header together with teaching material image information.
    Preferably, the file header includes an identifier for identifying the file, version information of the file, total number of records of handwritten information, size of teaching material image information, total size of voice information, and start position of handwritten information recorded in the file. Offset for handwriting information pointing, offset for teaching image pointing to the start position of teaching image information recorded in the file, offset for voice information pointing to the starting position of voice information recorded in the file, and a reserved area which is other extension area. Characterized in that.
    According to another aspect of the present invention, there is provided a data storage / reproducing apparatus for an electronic lecture system, which comprises recording means and audio for displaying handwritten information while displaying image information produced and projected by a predetermined computer system. A voice input unit for receiving information; A computer system for receiving the handwritten information and the voice information outputted from the recording means and the voice input unit, displaying the handwritten information and the voice information on the display unit, and storing them in a memory; And at least one computer system for receiving and reproducing the handwritten information and voice information from the computer system through a recording medium and a data communication network.
    Preferably, the recording means is an electronic blackboard having a function of encoding the handwritten information and transmitting it to the predetermined computer system in real time.
    Preferably, the computer system includes a first program for storing the handwritten information and voice information in real time and a second program for reproducing the stored handwritten information and voice information.
    Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.
    1 is a block diagram showing a data storage / playback device of the electronic lecture system according to the present invention, the user receives the electronic board 100 for recording the handwriting information and the microphone (not shown in the drawing) for receiving the voice information of the lecturer and In addition, the computer system 104 receives and displays handwritten information and voice information recorded on the copyboard 100, and stores the teaching system image information and presentation data created by the computer system 104. And a projection (105) connected to the computer system (104) for projection onto the computer system (104), the computer system (104) having an RS-232C port for receiving handwriting information and a sound card for receiving voice information, The interface 102 is provided to transmit the encoded handwritten information and voice information transmitted from the blackboard 100 to the computer system 104.
    It also includes one or more computer systems 106-106n that receive handwritten information and voice information stored in computer system 104 via a data communication network and downloaded via a recording medium, such as a diskette, and reproduce the same.
    3 is a file format display diagram of lecture data stored in a computer system, wherein a file of lecture data includes a file header, handwritten information, teaching instructional image information, and audio information.
    Referring to the data storage / playback process in the electronic lecture system configured as described above are as follows.
    First, when the user records the information on the copyboard 100, and at the same time delivers the voice through the microphone, handwriting information and the user's voice information recorded on the copyboard 100 in real time to the RS-232C port and sound card Is transmitted to the computer system 104 via the computer system 104.
    At this time, the handwritten information and the voice information are input to the computer system 104 via a transmission cable after signal processing such as an encoding process is performed (ST110) (ST112).
    Here, the handwriting information recorded on the copyboard 100 is pen type, pen color, pen width, pen time, pen click, as shown in FIG. Start position and start time and end time of the pen, end position of pen click, pointer to teaching images, and absolute time and reserve area of the computer.
    That is, when the user starts to record data on the copyboard 100, the electronic pulse signal generated by detecting the movement of the pen at the same time begins to be transmitted to the computer system 104, and at this time, the control unit of the computer system 104 Stores information about the pen together with time information in a storage means such as a memory.
    In other words, while the necessary contents such as letters, figures, and charts are recorded on the copyboard 100, the recorded contents are coded by a controller (not shown) of the copyboard 100, and the encoded contents are encoded. Is converted into an electrical signal and then transmitted to the computer system 104 via an input port of the computer via a transmission means such as a modem.
    Handwriting information transmitted to the computer system 104 is sequentially stored in the memory, such as a recording means used for recording on the copyboard 100, that is, a handwriting information record structure such as the type of pen, and such handwriting information is stored in the computer system. It is provided to the user in real time through the display unit of 104 (ST114).
    The pen for recording information on the copyboard 100 is used as an input means used to input or change information, and when a pen contacts the copyboard, a signal for the recorded information is generated.
    In general, the copyboard 100 is a planar mechanism used to input coordinate data as one of graphic processing apparatuses. The copyboard 100 detects the position of the pen on a two-dimensional plane. An electrode line and a pen orthogonal to each other and an induction coil in the plane of the copyboard are combined to detect the position by inputting XY coordinates. It is configured to.
    Meanwhile, the handwriting information is recorded on the copyboard 100 and the voice information of the user input to the microphone is also stored in the memory in the same manner as the above-described handwriting information is stored in the computer system 104.
    That is, the storage of the voice information uses a sound card mounted on the computer system 104, and at the same time as recording of handwritten information starts, the voice information input to the microphone input of the sound card is sound wave or adaptive differential pulse code modulation (ADPCM). Adaptive differential pulse code modulation) to store in memory.
    When the handwriting information is displayed on the display of the computer system 104, the voice information calls the waveform of the voice stored in the memory in a file in the specified order in accordance with the control signal of the computer system 104, and the computer's internal or external speaker Is provided to the user through. The output of voice information can be provided via headphones as well as speakers.
    Here, when handwriting information recorded on the copyboard 100 and voice information of a user are transmitted to a computer and stored in a memory in real time, a program for storing the handwriting information according to the record structure of the handwriting information and the format of the voice information is used. .
    On the other hand, the user can directly project the data or presentation data produced by the computer system 104 directly onto the copyboard 100 using the projection 105 without writing information directly on the copyboard 100. Accordingly, the projection 105 is not used when the user performs the lecture with only the voice information and the information recorded in the copyboard 100 without the presentation data.
    Subsequently, the transmitted handwriting information and voice information are composed of one file and stored in a memory, and the structure of the file includes a file header, handwriting information, teaching instructional image information, and voice information as shown in FIG.
    Here, the size of handwritten information, instructional image information, and voice information is variable because the size of the information recorded or lectured by the user on the copyboard 100 is not constant. The size of is fixed size. At this time, the instructional image information refers to a picture or a figure recorded on the copyboard 105. After detecting the data by the coordinate position detection method of the copyboard 105, it is mainly composed and inputted with dots, and then handwriting information and It is stored in memory along with voice information.
    The file header may include identification for identifying the file, version information of the file, total number of records of handwriting information, size of teaching material image information, total size of voice information, and handwriting information recorded in the file. Offset to handwriting information pointing to the start position, offset to teaching material image pointing to the starting position of the teaching material image information recorded in the file, offset to speech information pointing to the starting position of the voice information recorded in the file, and other extensions It consists of a reserve area which is an area.
    On the other hand, a single information file stored in the memory of the computer system 104 is downloaded to another computer via a network or directly copied through a floppy diskette, etc., and the lecture is reproduced in the own computer (ST116). (ST118). In order to play a lecture, a program for reproducing the stored lecture must be provided separately.
    As described in detail above, the present invention stores the voice information of the user and handwritten information recorded on the copyboard on a personal computer, and copies the stored information through a data communication network or by copying the stored information. Accordingly, by projecting computer-generated teaching data or presentation materials onto an electronic blackboard, a large number of people can conveniently play the lecture contents in real time or at a desired time on their personal computers.
    权利要求:
    Claims (8)
    [1" claim-type="Currently amended] Transmitting handwritten information recorded on the copyboard and voice information of a user input through a microphone to a computer system in real time through respective signal processing and storing them in a memory; Copying / transmitting the stored handwritten information and voice information to at least one computer system remotely via a download or recording medium through a data network; and transmitting the handwritten information and voice information to the at least one computer system. The data storage / playback method of the electronic lecture system, characterized in that it comprises the step of reproducing.
    [2" claim-type="Currently amended] The method of claim 1, wherein the signal processing process encodes the handwritten information and the voice information, respectively, and outputs the encoded information to a modem or a data network.
    [3" claim-type="Currently amended] The handwriting information of claim 1, wherein the handwriting information includes information on the type, color, width, time of recording, the start position and start time and end time of the pen click, the end position of the pen click, and teaching materials. A method of storing / playing data in an electronic lecture system comprising a pointer and absolute time of a computer.
    [4" claim-type="Currently amended] The method of claim 1, wherein the handwritten information and the voice information are composed of a single file including a file header together with teaching instructional image information.
    [5" claim-type="Currently amended] 5. The file header of claim 4, wherein the file header includes an identifier for identifying the file, version information of the file, total number of records of handwriting information, size of teaching material image information, total size of voice information, and handwriting information recorded in the file. An offset to handwriting information indicating the starting position, an offset to the teaching image indicating the starting position of the teaching image information recorded in the file, an offset to the speech information indicating the starting position of the speech information recorded in the file, and other extended areas. And a data storage / playback method for an electronic lecture system.
    [6" claim-type="Currently amended] A voice input unit which displays image information produced and projected by a predetermined computer system and records handwriting information and receives voice information; A computer system for receiving the handwritten information and the voice information outputted from the recording means and the voice input unit, displaying the handwritten information and the voice information on the display unit, and storing them in a memory; And at least one computer system for receiving and reproducing the handwritten information and voice information from the computer system through a recording medium and a data communication network.
    [7" claim-type="Currently amended] 7. The data storage / reproducing apparatus of an electronic lecture system according to claim 6, wherein said recording means is an electronic blackboard having a function of encoding said handwritten information and transmitting it to said predetermined computer system in real time.
    [8" claim-type="Currently amended] 7. The data storage of the electronic lecture system according to claim 6, wherein the computer system comprises a first program for storing the handwritten information and voice information in real time and a second program for reproducing the stored handwritten information and voice information. / Playback device.
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    同族专利:
    公开号 | 公开日
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    法律状态:
    1998-03-07|Application filed by 유환기, 주식회사 웅진미디어
    1998-03-07|Priority to KR1019980007602A
    1999-10-05|Publication of KR19990074180A
    优先权:
    申请号 | 申请日 | 专利标题
    KR1019980007602A|KR19990074180A|1998-03-07|1998-03-07|Method and device for data storage / playback of electronic lecture system|
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