JP2020021199A - Sharing terminal, communication system, presentation method, and program - Google Patents

Abstract

To provide a sharing terminal, a communication system, a presentation method, and a program that can display an image of electronic file data stored in the past when a sharing terminal different from other sharing terminal in which electronic file data was stored in the past.SOLUTION: When a user uses an electronic blackboard 2a different from an electronic blackboard 2b in which the user stored electronic file data in the past, electronic file management information managed in a file management server 8 is acquired, and a desired electronic file data is requested from the electronic blackboard 2a to the electronic blackboard 2b to select the desired electronic file data and a destination of storage of the data. Then even the electronic blackboard 2a is made to display an image of the electronic file data stored in the electronic blackboard 2b.SELECTED DRAWING: Figure 1

Description

  The present disclosure relates to a shared terminal, a communication system, a display method, and a program.

  In recent years, electronic blackboards that can be shared by a plurality of users have been installed in rooms such as conference rooms of companies and classrooms of educational institutions. This electronic blackboard has a large touch panel display, and displays a drawn image drawn by each user with a dedicated electronic pen, finger, or the like. As a result, each user can proceed with a meeting or a lesson while viewing the same drawn image (see Patent Document 1).

  In addition, after the user uses a shared terminal such as an electronic blackboard, an electronic file of the drawn image is stored in the shared terminal. A file can be read and a previously drawn image or the like can be displayed on the display of the shared terminal (see Patent Document 2).

  However, when a user reads out electronic file data such as a drawn image stored in the past, the user must use a conference room or a classroom where a shared terminal storing the electronic file data is located. Since the user cannot always use the same shared terminal every time, there has been a problem that electronic file data such as a drawn image saved in the past may not be read and used.

  In order to solve the above-described problem, the invention according to claim 1 is a sharing terminal that displays an image that can be viewed by a plurality of users, wherein each of a plurality of electronic file data stored in another sharing terminal is displayed. Display control means for displaying each electronic file identification information for identifying the electronic file identification information, receiving means for receiving a selection of specific electronic file identification information among the electronic file identification information, and specifying the selection received by the receiving means Transmitting means for transmitting the specific electronic file identification information to another specific shared terminal in which specific electronic file data indicated by the electronic file identification information is stored; and A receiver that receives the specific electronic file data transmitted by the specific other shared terminal as a response to the transmission of the file identification information. If has, the display control means is a shared terminal, characterized in that to display an image based on the particular electronic file data.

  ADVANTAGE OF THE INVENTION According to this invention, the effect of being able to display the image of the electronic file data stored in the past even when using a shared terminal different from the other shared terminals that have previously stored the electronic file data can be obtained. Play.

It is a schematic diagram of a communication system concerning this embodiment. It is a hardware block diagram of an electronic blackboard. It is a hardware block diagram of an IC card. It is a hardware block diagram of a smart phone. FIG. 2 is a hardware configuration diagram of a server and a PC. FIG. 3 is a hardware configuration diagram of the MFP. It is a hardware block diagram of a video conference terminal. It is a screen example displayed on the display of the electronic blackboard. It is a functional block diagram of a communication system. (A) is a conceptual diagram of a terminal management table, and (B) is a conceptual diagram of a file management table. FIG. 9 is a sequence diagram illustrating a login process. It is a screen example displayed on the display of the electronic blackboard. It is an image figure showing the state where a user uses an electronic blackboard. It is a flowchart which shows the process based on the authentication result at the time of login. It is a figure showing the save file list screen displayed on the display of the electronic blackboard. It is a flowchart which shows a process from a user selecting an electronic file on an electronic blackboard to displaying the contents of the electronic file. FIG. 9 is a sequence diagram illustrating a process of acquiring electronic file data. FIG. 7 is a sequence diagram showing a process of saving electronic file data.

  Hereinafter, the communication system 1 according to the present embodiment will be described in detail with reference to the drawings.

<< Outline of system configuration >>
First, an outline of the configuration of the communication system 1 will be described. FIG. 1 is a schematic diagram of a communication system according to the present embodiment.

  As shown in FIG. 1, the communication system 1 according to the present embodiment includes an electronic whiteboard 2a, an electronic whiteboard 2b, an IC (Integrated Circuit) card 3, a smartphone 4, a terminal management server 5, a file management server 8, an MFP ( It is configured by a Multifunction Peripheral / Product / Printer 9, PCs (Personal Computers) 10a and 10b, and a video conference terminal 13. In the following, any of the electronic blackboards 2a and 2b is referred to as “electronic blackboard 2”. An arbitrary PC among the PCs 10a and 10b is represented as “PC10”.

  The electronic whiteboard 2, the terminal management server 5, the file management server 8, the MFP 9, the PC 10, and the video conference terminal 13 constituting the communication system 1 can communicate via the communication network 100. The communication network 100 is constructed by the Internet, a mobile communication network, a LAN (Local Area Network), and the like. The communication network 100 may include a wireless communication network such as 3G (3rd Generation), WiMAX (Worldwide Interoperability for Microwave Access), and LTE (Long Term Evolution) as well as wired communication. The electronic blackboard 2, the IC card 3, and the smartphone 4 can communicate with each other by short-range communication technology such as NFC (Near Field Communication) (registered trademark). In addition, the smartphone 4 may communicate with the electronic whiteboard 2 using a short-range communication technology such as Bluetooth (registered trademark) or NFC.

  Further, the electronic whiteboard 2a and the electronic whiteboard 2b can transmit and receive drawn image data (hereinafter, referred to as “drawn image data”), which is the content drawn by the user. Therefore, the content drawn on the electronic blackboard 2a is also displayed on the electronic blackboard 2b, and conversely, the content drawn on the electronic blackboard 2b is also displayed on the electronic blackboard 2a.

  Further, the electronic blackboard 2 can create image data in the RPCS (Refined Printing Command Stream) format from the drawn image data and transmit the image data to the MFP 9 via the communication network 100. Further, the electronic blackboard 2 can transmit the electronic mail to the PC 10 via the communication network 100 after creating the image data in Portable Document Format (PDF) from the drawn image data and attaching the image data to the electronic mail. Thereby, the MFP 9 can print the drawn image, and the PC 10 can display the drawn image.

  In addition, the electronic blackboard 2 can also display a non-drawing image such as a material that is not drawn by the user. Also in this case, the electronic blackboard 2 can create image data in the RPCS format from the data of the non-drawing image (hereinafter, referred to as “non-drawing image data”) and transmit the image data to the MFP 9 via the communication network 100. Furthermore, the electronic blackboard 2 can transmit the electronic mail to the PC 10 via the communication network 100 after creating the image data in PDF format from the non-drawn image data and attaching the image data to the electronic mail.

  Note that the image data in the RPCS format and the image data in the PDF format are data relating to an image as an original drawn image or an original non-drawn image. The electronic whiteboard 2 is an example of a shared terminal, and allows a plurality of users to browse (see) the same image at the same time. The shared terminal is a network device that can be shared and used by a plurality of users. In addition to the electronic blackboard 2, the shared terminal includes a projector, a video conference terminal, a personal computer, a television, and the like.

  The IC card 3 and the smartphone 4 are examples of a dedicated terminal. The MFP 9 is an example of a printing device. The PC 10 is an example of a personal terminal. In addition to the RPCS format, a PCL (Printer Control Language) format, a PDL (Page Description Language) format, or a PS (PostScript) format may be used. A dedicated terminal is a network device that can be used personally by a user. The proprietary terminals include tablet PCs, smart watches, etc., in addition to IC cards and smartphones.

  In FIG. 1, the user A owns the IC card 3 and brings the IC card 3 to a conference using the electronic blackboard 2. The user B owns the smartphone 4 and brings the smartphone 4 to a meeting using the electronic blackboard 2. The PC 10a is a PC owned by the user. The PC 10b is a PC owned by the user B. The electronic whiteboard 2 has a video conference function, and can hold a video conference and video conference with the video conference terminal 13 via the communication network 100.

  The terminal management server 5 manages a terminal ID (Identification) for identifying a dedicated terminal. The file management server 8 manages electronic file identification information for identifying electronic file data stored in the electronic whiteboard 2 and the like. The electronic file data includes materials created by document creation software such as PDF (Portable Document Format) and Word (registered trademark), materials created by spreadsheet software such as Excel (registered trademark), and PowerPoint (registered trademark). ), Etc., each data of materials created by presentation software.

<< hardware configuration >>
Subsequently, a hardware configuration of an apparatus or a terminal that constructs the communication system 1 will be described with reference to FIGS.

<Hardware configuration of electronic blackboard>
FIG. 2 is a hardware configuration diagram of the electronic blackboard. As shown in FIG. 2, the electronic blackboard 2 includes a CPU (Central Processing Unit) 201, a ROM (Read Only Memory) 202, a RAM (Random Access Memory) 203, an SSD (Solid State Drive) 204, a network I / O An F205 and an external device connection I / F (Interface) 206 are provided.

  Among these, the CPU 201 controls the operation of the entire electronic whiteboard 2. The ROM 202 stores programs used for driving the CPU 201, such as the CPU 201 and an IPL (Initial Program Loader). The RAM 203 is used as a work area of the CPU 201. The SSD 204 stores various data such as a program for an electronic blackboard. The network controller 205 controls communication with the communication network 100. The external device connection I / F 206 controls communication with a USB (Universal Serial Bus) memory 2600 and external devices (a microphone 2200, a speaker 2300, and a camera 2400).

  The electronic blackboard 2 includes a capture device 211, a GPU 212, a display controller 213, a contact sensor 214, a sensor controller 215, an electronic pen controller 216, a short-range communication circuit 219, an antenna 219a of the short-range communication circuit 219, a power switch 222, and a selection switch. Switches 223 are provided.

  Among these, the capture device 211 causes the display 508 of the PC 10 to display video information as a still image or a moving image. The GPU (Graphics Processing Unit) 212 is a semiconductor chip that specializes in graphics. The display controller 213 controls and manages screen display to output an image output from the GPU 212 to the display 220 or the like. The contact sensor 214 detects that the electronic pen 2500 or the hand H of the user has contacted the display 220. The sensor controller 215 controls the processing of the contact sensor 214. The contact sensor 214 performs input of coordinates and detection of coordinates by an infrared cutoff method. In the method of inputting coordinates and detecting the coordinates, two light receiving and emitting devices installed at both upper ends of the display 220 emit a plurality of infrared rays in parallel with the display 220 and are provided around the display 253. This is a method of receiving light that is reflected by the reflecting member and returns on the same optical path as the optical path of the light emitted by the light receiving element. The contact sensor 214 outputs, to the sensor controller 215, IDs of infrared rays emitted by the two light receiving and emitting devices interrupted by the object, and the sensor controller 215 specifies a coordinate position that is a contact position of the object. The electronic pen controller 216 communicates with the electronic pen 2500 to determine whether the display 220 has touched the pen tip or the pen tip. The short-range communication circuit 219 is a communication circuit such as NFC and Bluetooth. The power switch 222 is a switch for turning on / off the power of the electronic whiteboard 2. The selection switches 223 are a group of switches for adjusting, for example, the brightness and color of the display on the display 220.

  Further, the electronic whiteboard 2 includes a bus line 210. The bus line 210 is an address bus, a data bus, and the like for electrically connecting each component such as the CPU 201 shown in FIG.

  In addition, the contact sensor 214 is not limited to the infrared cutoff method, but a capacitance type touch panel that specifies a contact position by detecting a change in capacitance, and a contact position based on a voltage change of two opposing resistive films. Various detection means may be used, such as a resistive-type touch panel that performs detection, an electromagnetic induction-type touch panel that detects electromagnetic induction generated when a contact object comes into contact with a display unit, and specifies a contact position. Further, the electronic pen controller 216 may determine whether or not there is a touch on not only the pen tip and the pen tail of the electronic pen 2500 but also a portion held by the user of the electronic pen 2500 and other electronic pen portions.

<Hardware configuration of IC card>
FIG. 3 is a hardware configuration diagram of the IC card. Here, a non-contact type configuration will be described, but a contact type may be used. As shown in FIG. 3, the IC card 3 includes an IC chip and an antenna coil 330. Further, the IC chip 310 includes a CPU 311, a ROM 312, a RAM 313, an EEPROM 314, and an antenna I / F 318.

  Among these, the CPU 311 controls the operation of the entire IC card 3. The ROM 312 stores a program used for driving the CPU 311. The RAM 313 is used as a work area of the CPU 311. An EEPROM (Electrically Erasable and Programmable ROM) 314 stores a program for the IC card 3 and various data such as a terminal ID for identifying the IC card 3. The antenna I / F 318 controls transmission and reception of data with an external device via the antenna coil 330.

  Further, the IC card 3 has a bus line 320. The bus line 320 is an address bus, a data bus, and the like for electrically connecting each component such as the CPU 311 shown in FIG.

  The antenna coil 330 is a coil for generating a current by receiving the magnetic field when the IC card 3 passes a magnetic field generated by an external device. By utilizing this electricity, the IC card 310 activates the IC card 3, communicates with the reader / writer of the external device, and can acquire and provide data.

<Smartphone hardware configuration>
FIG. 4 is a hardware configuration diagram of the smartphone. As shown in FIG. 4, the smartphone 4 includes a CPU 401, a ROM 402, a RAM 403, an EEPROM 404, a CMOS sensor 405, an acceleration / direction sensor 406, a media I / F 408, and a GPS receiving unit 409.

  Of these, the CPU 401 controls the overall operation of the smartphone 4. The ROM 402 stores programs used for driving the CPU 401, such as the CPU 401 and IPL. The RAM 403 is used as a work area of the CPU 401. The EEPROM 404 reads or writes various data such as a smartphone program under the control of the CPU 401. A CMOS (Complementary Metal Oxide Semiconductor) sensor 405 captures a subject (mainly a self-portrait) under the control of the CPU 401 to obtain image data. The acceleration / azimuth sensor 406 is various sensors such as an electronic magnetic compass for detecting geomagnetism, a gyro compass, and an acceleration sensor. The media I / F 408 controls reading or writing (storage) of data from or to a recording medium 407 such as a flash memory. The GPS receiver 409 receives a GPS signal from a GPS satellite.

  Also, the smartphone 4 includes a long-distance communication circuit 411, a camera 412, an image sensor I / F 413, a microphone 414, a speaker 415, a sound input / output I / F 416, a display 417, an external device connection I / F 418, a short-distance communication circuit 419, An antenna 419 a of the short-range communication circuit 419 and a touch panel 421 are provided.

  Among these, the long-distance communication circuit 411 is a circuit that communicates with other devices via the communication network 100. The camera 412 is a type of a built-in image capturing unit that captures an image of a subject under the control of the CPU 401 and obtains image data. The image sensor I / F 413 is a circuit that controls driving of the camera 412. The microphone 414 is a kind of built-in sound collecting means for inputting sound. The sound input / output I / F 416 is a circuit that processes input / output of a sound signal between the microphone 414 and the speaker 415 under the control of the CPU 401. The display 417 is a type of display means such as a liquid crystal display or an organic EL display that displays an image of a subject, various icons, and the like. The external device connection I / F 418 is an interface for connecting various external devices. The short-range communication circuit 419 is a communication circuit such as NFC or Bluetooth. The touch panel 421 is a type of input unit that operates the smartphone 4 when the user presses the display 417.

  The smartphone 4 includes a bus line 410. The bus line 410 is an address bus, a data bus, and the like for electrically connecting each component such as the CPU 401 shown in FIG.

<Hardware configuration of server and PC>
FIG. 5 is a hardware configuration diagram of the server and the PC. Since the terminal management server 5, the file management server 8, and the PCs 10a and 10b have basically the same hardware configuration, the hardware configuration of the terminal management server 5 will be described here. In the following description, when describing the hardware configuration of the file management server 8 and the PCs 10a and 10b, the description will be made using the respective configurations shown in FIG.

  The terminal management server 5 is constructed by a computer, and as shown in FIG. 5, a CPU 501, a ROM 502, a RAM 503, an HD 504, an HDD (Hard Disk Drive) drive 505, a recording medium 506, a media I / F 507, and a display. 508, a network I / F 509, a keyboard 511, a mouse 512, a CD-RW drive 514, and a bus line 510.

  Among these, the CPU 501 controls the operation of the terminal management server 5 as a whole. The ROM 502 stores a program such as an IPL used for driving the CPU 501. The RAM 503 is used as a work area of the CPU 501. The HD 504 stores various data such as programs. An HDD (Hard Disk Drive) drive 505 controls reading or writing of various data from or to the HD 504 under the control of the CPU 501. A media I / F 507 controls reading or writing (storage) of data from or to a recording medium 506 such as a flash memory. The display 508 displays various information such as a cursor, a menu, a window, characters, and an image. The network I / F 509 is an interface for performing data communication using the communication network 100. The keyboard 511 is a type of input means having a plurality of keys for inputting characters, numerical values, various instructions, and the like. The mouse 512 is a type of input means for selecting and executing various instructions, selecting a processing target, and moving a cursor. The CD-RW drive 514 controls reading and writing of various data from and to a CD-RW (Compact Disc-ReWritable) 513 as an example of a removable recording medium.

  The terminal management server 5 includes a bus line 510. The bus line 510 is an address bus, a data bus, or the like for electrically connecting each component such as the CPU 501 shown in FIG.

<MFP hardware configuration>
FIG. 6 is a hardware configuration diagram of the MFP. As illustrated in FIG. 6, the MFP 9 includes a controller 910, a short-range communication circuit 920, an engine control unit 930, an operation panel 940, and a network I / F 950.

  Among these, the controller 910 includes a CPU 901, a system memory (MEM-P) 902, a north bridge (NB) 903, a south bridge (SB) 904, an ASIC (Application Specific Integrated Circuit) 906, and a storage unit. And a local memory (MEM-C) 907, an HDD 908, and an HD 909 as a storage unit. The NB 903 and the ASIC 906 are connected by an AGP (Accelerated Graphics Port) bus 921.

  Among these, the CPU 901 is a control unit that performs overall control of the MFP 9. The NB 903 is a bridge for connecting the CPU 901 with the MEM-P 902, the SB 904, and the AGP bus 921. Having.

  The MEM-P 902 includes a ROM 902a that is a memory for storing programs and data for realizing each function of the controller 910, and a RAM 902b that is used as a drawing memory when developing programs and data and printing the memory. The program stored in the RAM 902b is provided in the form of an installable or executable file recorded on a computer-readable recording medium such as a CD-ROM, FD, CD-R, or DVD. May be configured.

  The SB 904 is a bridge for connecting the NB 903 to PCI devices and peripheral devices. The ASIC 906 is an IC (Integrated Circuit) for image processing having hardware elements for image processing, and has a role of a bridge that connects the AGP bus 921, the PCI bus 922, the HDD 908, and the MEM-C907. The ASIC 906 includes a PCI target and an AGP master, an arbiter (ARB) that forms the core of the ASIC 906, a memory controller that controls the MEM-C907, and a plurality of DMACs (Direct Memory Access Controllers) that rotate image data using hardware logic. And a PCI unit for transferring data between the scanner unit 931 and the printer unit 932 via the PCI bus 922. The ASIC 906 may be connected to a USB (Universal Serial Bus) interface or an IEEE 1394 (Institute of Electrical and Electronics Engineers 1394) interface.

  The MEM-C907 is a local memory used as a copy image buffer and a code buffer. The HD 909 is a storage for storing image data, storing font data used for printing, and storing a form. The HD 909 controls reading or writing of data from / to the HD 909 under the control of the CPU 901. The AGP bus 921 is a bus interface for a graphics accelerator card that has been proposed to speed up graphics processing. By directly accessing the MEM-P 902 with high throughput, the graphics accelerator card can be operated at high speed. .

  The short-range communication circuit 920 includes a short-range communication circuit 920a. The short-range communication circuit 920 is a communication circuit such as NFC or Bluetooth.

  Further, the engine control unit 930 includes a scanner unit 931 and a printer unit 932. The operation panel 940 displays a current setting value, a selection screen, and the like, and displays a panel display unit 940a such as a touch panel that receives an input from an operator, and a setting value of an image forming condition such as a density setting condition. An operation panel 940b including a ten key for accepting and a start key for accepting a copy start instruction is provided. The controller 910 controls the entire MFP 9 and controls, for example, drawing, communication, input from the operation panel 940, and the like. The scanner unit 931 or the printer unit 932 includes an image processing unit such as error diffusion or gamma conversion.

  Note that the MFP 9 can sequentially switch and select a document box function, a copy function, a printer function, and a facsimile function by using an application switching key on the operation panel 940. The document box mode is set when the document box function is selected, the copy mode is set when the copy function is selected, the printer mode is set when the printer function is selected, and the facsimile mode is set when the facsimile mode is selected.

  The network I / F 950 is an interface for performing data communication using the communication network 100. The short-range communication circuit 920 and the network I / F 950 are electrically connected to the ASIC 906 via the PCI bus 922.

<Hardware configuration of video conference terminal>
FIG. 7 is a hardware configuration diagram of the video conference terminal according to the present embodiment. As shown in FIG. 7, the video conference terminal 13 includes a CPU 101, a ROM 102, a RAM 103, a flash memory 104, an SSD 105, a media I / F 107, an operation button 108, a power switch 109, a bus line 110, a network I / F 111, A camera 112, an image sensor I / F, a microphone 114, a speaker 115, a sound input / output I / F 116, a display I / F 117, an external device connection I / F 118, a short-range communication circuit 119, and an antenna 119a of the short-range communication circuit 119 are provided. ing. Among these, the CPU 101 controls the operation of the entire video conference terminal 13. The ROM 102 stores a program used for driving the CPU 101, such as an IPL. The RAM 103 is used as a work area of the CPU 101. The flash memory 104 stores various data such as a communication program, image data, and sound data. The SSD 105 controls reading or writing of various data from or to the flash memory 104 under the control of the CPU 101. Note that an HDD may be used instead of the SSD. The media I / F 107 controls reading or writing (storage) of data from or to the recording medium 106 such as a flash memory. The operation button 108 is a button operated when the destination of the video conference terminal 13 is selected. The power switch 109 is a switch for turning on / off the power of the video conference terminal 13.

  The network I / F 111 is an interface for performing data communication using the communication network 100 such as the Internet. The camera 112 is a type of a built-in type imaging unit that obtains image data by capturing an image of a subject under the control of the CPU 101. The image sensor I / F 113 is a circuit that controls driving of the camera 112. The microphone 114 is a type of a built-in sound collecting unit for inputting sound. The sound input / output I / F 116 is a circuit that processes input / output of a sound signal between the microphone 114 and the speaker 115 under the control of the CPU 101. The display I / F 117 is a circuit that transmits image data to the external display 120 under the control of the CPU 101. The external device connection I / F 118 is an interface for connecting various external devices. The short-range communication circuit 119 is a communication circuit such as NFC or Bluetooth.

  The bus line 110 is an address bus, a data bus, and the like for electrically connecting each component such as the CPU 101 shown in FIG.

  The display 120 is a type of display means composed of liquid crystal or organic EL for displaying an image of a subject, operation icons, and the like. The display 120 is connected to the display I / F 117 by a cable 120c. The cable 120c may be a cable for an analog RGB (VGA) signal, a cable for a component video, a HDMI (High-Definition Multimedia Interface) (registered trademark), or a DVI (Digital Video). (Interactive) signal cable.

  Note that the camera 112 includes a lens and a solid-state imaging device that converts light into electric charge to digitize an image (video) of a subject. As the solid-state imaging device, a CMOS (Complementary Metal Oxide Semiconductor) or a CCD (Charge Coupled Device) is used. External devices such as an external camera, an external microphone, and an external speaker can be connected to the external device connection I / F 118 via a USB cable or the like. When an external camera is connected, the external camera is driven in preference to the built-in camera 112 under the control of the CPU 101. Similarly, when an external microphone is connected or an external speaker is connected, the external microphone or the internal speaker 115 is given priority over the built-in microphone 114 or the built-in speaker 115 under the control of the CPU 101. The external speaker is driven.

  The recording medium 106 is configured to be detachable from the video conference terminal 13. The flash memory 104 is not limited to the flash memory 104, and an EEPROM or the like may be used as long as it is a nonvolatile memory that reads or writes data under the control of the CPU 101.

<< Screen example of electronic blackboard >>
A screen example of the electronic whiteboard 2 will be described with reference to FIG. FIG. 8 is an example of a screen displayed on the display of the electronic blackboard. The electronic blackboard 2 displays a drawing screen 230 on the display 220 as shown in FIG. On the drawing screen 230, an image drawn by the user with the electronic pen 2500 or the like is displayed. In addition, a “menu” button 231 and an “end” button 239e are displayed at the lower right of the drawing screen 230. The “menu” button 231 is a button pressed by the user when executing various functions of the electronic whiteboard 2. The "end" button 239e is a button pressed by the user when the user logs out and does not display the screen. Here, when the user presses the “menu” button 231 with the electronic pen 2500 or the like, the electronic blackboard 2 selects various functions on the drawing screen 230 as shown in FIG. 8B. Menu selection screen 232 is displayed.

  As shown in FIG. 8B, the menu selection screen 232 includes a “read” button 234, a “save” button 235, a “print” button 236, a “send mail” button 237, and a “QR code” button. 239 are displayed.

  Among these, the “read” button 234 is a button for reading the electronic file data of the drawn image already drawn and stored in the SSD 204 by the electronic blackboard 2 and displaying it on the display 220. The “save” button 235 is a button for the electronic blackboard 2 to save a drawn image drawn by a user as electronic file data in the SSD 204. The “print” button 236 is a button for printing a drawn image displayed on the drawing screen 230 on the electronic blackboard 2 by the MFP 9 or the like. The “send mail” button 237 is a button for the electronic blackboard 2 to attach a drawn image displayed on the drawing screen 230 to a user's PC or the like as drawn image data and to transmit the attached image to the electronic mail. The “QR code” button 239 is a button for the electronic blackboard 2 to display a QR code representing an apparatus ID for identifying the apparatus on the display 220.

  When the user presses the “end” button 239 e with the electronic pen 2500 or the like, the electronic blackboard 2 logs out on the drawing screen 230 and ends the display as shown in FIG. 8C. Is displayed.

  As shown in FIG. 8C, the end screen 238 displays a “primarily save in shared folder and end” button 238a, an “end” button 238b, and a “cancel” button 238c.

  Among these, the “primarily save and end in shared folder” button 238a is a button for temporarily saving the drawn image data and for logging out and ending the display. The "end" button 238b is a button for directly logging out and ending the display. That is, when the user logs in next time, the drawn image data is not displayed. The “cancel” button 238c is a button for stopping the display of the end screen and returning to the original drawing screen 230 shown in FIG.

  Further, each of the above programs may be recorded in a computer-readable recording medium as a file in an installable format or an executable format and distributed. Examples of the recording medium include a CD-R (Compact Disc Recordable), a DVD (Digital Versatile Disk), a Blu-ray disc, and an SD card. Further, the recording medium can be provided domestically or abroad as a program product.

  Furthermore, each of the servers 5 and 8 may be configured by a single computer, or may be configured by a plurality of computers which are obtained by dividing each unit (function, means, or storage unit) and arbitrarily assigned. Good.

<< Functional configuration of communication system >>
Subsequently, a functional configuration of the present embodiment will be described with reference to FIGS. 9 and 10. FIG. 9 is a functional block diagram of the communication system. Note that FIG. 9 illustrates, among the terminals, devices, and servers illustrated in FIG. 1, those related to processing or operations described below.

<Functional configuration of electronic blackboard>
As shown in FIG. 9, the electronic blackboard 2a (2b) includes a transmitting / receiving unit 21a (21b), a receiving unit 22a (22b), an image / sound processing unit 23a (23b), and a display control unit 24a (24b). ), A determination unit 25a (25b), a creation unit 26a (26b), an acquisition / providing unit 28a (28b), and a storage / readout processing unit 29a (29b). These units are functions or functions realized by operating any of the components shown in FIG. 2 by an instruction from the CPU 201 in accordance with the electronic blackboard program developed on the RAM 203 from the SSD 204, or It is a means to do. The electronic blackboard 2 has a storage unit 2000 constructed by the RAM 203 and the SSD 204 shown in FIG.

(Each function configuration of the electronic blackboard)
Next, each component of the electronic whiteboard 2 will be described. The transmission / reception unit 21a (21b) is realized by a command from the CPU 201 shown in FIG. 2 and the network I / F 205 and the external device connection I / F 206, and communicates with another terminal, device, or system via the communication network 100. Sends and receives various data (or information).

  The receiving unit 22a (22b) is mainly realized by the command from the CPU 201 shown in FIG. 2, the contact sensor 214 and the electronic pen controller 216, and receives various inputs by the user.

  The image / sound processing unit 23a (23b) is realized by a command from the CPU 201 shown in FIG. 2, and performs image processing on image data obtained by the camera 2400 capturing an image of a subject. Further, after the user's voice is converted into a voice signal by the microphone 2200, the image / sound processing unit 23 performs voice processing on the sound data related to the voice signal. Further, the image / sound processing unit 23a (23b) outputs a sound signal relating to the sound data to the speaker 2300, and causes the speaker 2300 to output sound. The image / sound processing unit 23a (23b) performs a process of converting drawing image data obtained by drawing on the display 220 by the user with the electronic pen 2500 or the hand H into coordinate data. For example, when the electronic blackboard 2a transmits coordinate data to the electronic blackboard 2b in another location, the electronic blackboard 2b displays the same drawing on the display 220 of the other electronic blackboard 2b based on the coordinate data. .

  The display control unit 24a (24b) is realized by a command from the CPU 201 shown in FIG. 2 and the display controller 213 shown in FIG. 2, and causes the display 220 to display a drawn image.

  The determination unit 25a (25b) is realized by a command from the CPU 201 illustrated in FIG. 2 and determines whether a terminal ID has been acquired from the IC card 3 or the smartphone 4.

  The creating unit 26a (26b) is realized by a command from the CPU 201 shown in FIG. 2, and creates PDF format image data from bitmap format drawing image data obtained by drawing by a user. . The creation unit 26a (26b) is realized by a command from the CPU 201 shown in FIG. 2, and creates RPCS format image data from bitmap format image data obtained by drawing by a user. . In addition, not only the RPCS format but also a PDL format or a PS format may be used. Further, the creating unit 26a (26b) creates electronic file management information described later.

  The setting unit 27a (27b) is realized by a command from the CPU 201 shown in FIG. 2, and sets, for example, a transmission source and a transmission destination of an e-mail and a printer name of print data.

  The acquisition / providing unit 28a (28b) is executed by the command from the CPU 201 shown in FIG. 2 and by the short-range communication circuit 219 and the antenna 219a, and performs short-range communication with the IC card 3 or the smartphone 4. , And acquire and provide data.

  The storage / read processing unit 29a (29b) is executed by the command from the CPU 201 and the SSD 204 shown in FIG. 2, and stores various data in the storage unit 2000a (2000b) or the recording medium 2100a (2100b), or A process of reading various data stored in the unit 2000a (2000b) or the recording medium 2100a (2100b) is performed. Further, in the storage unit 2000a (2000b), image data and sound data received when communicating with another electronic whiteboard or a video conference terminal are overwritten and stored each time they are received. Among them, an image is displayed on the display 220 by the image data before the overwriting, and a sound is output from the speaker 2300 by the sound data before the overwriting. The recording medium 2100a (2100b) is realized by the USB memory 2600 shown in FIG.

<Functional configuration of IC card>
As shown in FIG. 9, the IC card 3 has an acquisition / providing unit 38 and a storage / read processing unit 39. Each of these units is a function or a function realized by operating any one of the constituent elements shown in FIG. 2 according to an instruction from the CPU 311 in accordance with an IC card program developed on the RAM 313 from the EEPROM 314. It is a means to do. Further, the IC card 3 has a storage unit 3000 constructed by the RAM 313 and the EEPROM 314 shown in FIG.

(Each functional configuration of IC card)
Next, each component of the IC card 3 will be described. The acquisition / providing unit 38 is executed by the command from the CPU 311 shown in FIG. 3 and the antenna coil 330, and acquires and provides data with the electronic whiteboard 2 by short-range communication.

  The storage / read processing unit 39 is executed by an instruction from the CPU 311 shown in FIG. 3, and performs processing of storing various data in the storage unit 3000 and reading various data stored in the storage unit 3000. . Further, the storage unit 3000 stores a terminal ID for identifying an IC card as an example of a dedicated terminal.

<Functional configuration of smartphone>
As illustrated in FIG. 9, the smartphone 4 includes an acquisition / providing unit 48 and a storage / readout processing unit 49. These units function or are implemented by operating any one of the components illustrated in FIG. 4 according to a command from the CPU 401 in accordance with the smartphone program developed on the RAM 403 from the EEPROM 404. Means. In addition, the smartphone 4 includes a storage unit 4000 configured by the RAM 403 and the EEPROM 404 illustrated in FIG.

(Functional configuration of smartphone)
Next, each component of the smartphone 4 will be described. The acquisition / providing unit 48 is executed by the command from the CPU 401 shown in FIG. 4, the short-range communication circuit 419, and the antenna 419a, and acquires and provides data with the electronic whiteboard 2 by short-range communication. Do.

  The storage / read processing unit 49 is executed by an instruction from the CPU 401 shown in FIG. 4, and performs processing of storing various data in the storage unit 4000 and reading various data stored in the storage unit 4000. . Note that the storage unit 4000 stores a terminal ID for identifying the smartphone 4 as an example of a dedicated terminal.

<Functional configuration of terminal management server>
The terminal management server 5 includes a transmission / reception unit 51, an authentication unit 52, and a storage / read processing unit 59. These units function or function when any of the components shown in FIG. 5 is operated by an instruction from the CPU 501 in accordance with the terminal management program developed on the RAM 503 from the HD 504. Means. Further, the terminal management server 5 has a storage unit 5000 constructed by the HD 504 shown in FIG.

(Terminal management table)
FIG. 10A is a conceptual diagram illustrating a terminal management table. In the storage unit 5000, a terminal management DB 5001 configured by a terminal management table as shown in FIG. In this terminal management table, for each exclusive terminal ID for identifying all the exclusive terminals (IC card 3 and smartphone 4) managed by the terminal management server 5, the user who is the owner of each exclusive terminal is identified. A user ID for identification and a user name are managed in association with each other.

(Each functional configuration of terminal management server)
Next, each functional configuration of the terminal management server 5 will be described in detail. In the following, in describing each functional configuration of the terminal management server 5, among the components illustrated in FIG. 5, main components for realizing each functional configuration of the terminal management server 5 will be described. Explain the relationship.

  The transmission / reception unit 51 of the terminal management server 5 illustrated in FIG. 9 is realized by a command from the CPU 501 illustrated in FIG. 5 and the network I / F 509 illustrated in FIG. To send and receive various data (or information) with other terminals, devices, or systems.

  The authentication unit 52 is realized by a command from the CPU 501 shown in FIG. 5, and the exclusive terminal ID sent from the electronic whiteboard 2 is used for the user's exclusive terminal (IC card 3, smartphone 4 ) Is determined.

  The storage / read processing unit 59 is realized by an instruction from the CPU 501 shown in FIG. 5 and the HDD 505 shown in FIG. 5, and stores various data in the storage unit 5000 or is stored in the storage unit 5000. It performs a process of reading various kinds of data.

<Functional configuration of file management server>
The file management server 8 includes a transmission / reception unit 81 and a storage / read processing unit 89. These units function or function realized by operating any one of the components shown in FIG. 9 according to a command from the CPU 501 in accordance with the file management program developed on the RAM 503 from the HD 504. Means. Further, the file management server 8 has a storage unit 8000 constructed by the HD 504 shown in FIG.

(File management table)
FIG. 10B is a conceptual diagram illustrating a file management table. In the storage unit 8000, a file management DB 8001 constituted by a file management table as shown in FIG. The file management table manages file management information. Specifically, a file storage date and time, a file name, a shared terminal name, and an IP address are managed in association with each user ID for identifying all users managed by the file management server 8. You.

  The storage date and time of the file indicates the date and time when the electronic file data was stored on the electronic blackboard 2. The file name is the name of the stored electronic file data. The shared terminal name is the name of the shared terminal where the electronic file data is stored. The IP address indicates a location where the shared terminal 2 exists on the communication network.

  Note that the user ID is an example of user identification information, and is used to specify a shared terminal where electronic file data is stored. The device ID is an example of device identification information. The shared terminal ID is an example of shared terminal identification information. The exclusive terminal ID is an example of exclusive terminal identification information.

  The user ID is an example of user identification information. The user identification information includes an employee number, a driver's license number, a My Number in the Japanese social security and tax number system, and the like.

  The storage date and time and the file name are examples of electronic file identification information. Basically, an electronic file can be specified by a file name. By managing the storage date and time, a user can easily find a desired electronic file on a storage file list screen shown in FIG. 15 described later. .

  The shared terminal name is an example of shared terminal identification information. The IP address is an example of the shared terminal location information.

  The device identification information, the shared terminal identification information, the dedicated terminal identification information, and the shared terminal identification information each include a serial number and the like.

(Each functional configuration of the file management server)
Next, each functional configuration of the file management server 8 will be described in detail. In the following, in describing each functional configuration of the file management server 8, in describing each functional configuration of the file management server 8, main components for realizing each functional configuration of the file management server 8 will be described. Explain the relationship.

  The transmission / reception unit 81 of the file management server 8 shown in FIG. 9 is realized by a command from the CPU 501 shown in FIG. 5 and the network I / F 509 shown in FIG. To send and receive various data (or information) with other terminals, devices, or systems.

  The storage / read processing unit 89 is realized by a command from the CPU 501 illustrated in FIG. 5 and the HDD 505 illustrated in FIG. 5, and stores various data in the storage unit 8000 or stores data in the storage unit 8000. It performs a process of reading various kinds of data.

<< Process or Operation of Embodiment >>
Hereinafter, the processing or operation of each embodiment will be described. Here, FIG. 1 shows a case where users A and B are in a meeting room using the electronic blackboard 2a to have a meeting, and the user A performs a log-in process and the user A or the user B A case of reading (reading) own electronic file data will be described. Hereinafter, various requests and various results are transmitted and received as data (information).

<Login process>
First, a login process performed by the user A on the electronic whiteboard 2a will be described with reference to FIGS. FIG. 11 is a sequence diagram showing a login process. FIG. 12 is an example of a screen displayed on the display of the electronic blackboard. FIG. 13 is an image diagram showing a state where the user uses the electronic blackboard.

  As shown in FIG. 13, when the user A presses the power switch 222 of the electronic blackboard 2a, the display control unit 24 causes the login screen to be displayed on the display 220 as shown in FIG. 170 is displayed (step S11). Next, as shown in FIG. 13, when the user A brings his / her IC card 3 close to the short-range communication unit 221 of the electronic whiteboard 2 a (oversends), the acquisition and provision unit of the electronic whiteboard 2 a is provided. 28 acquires the exclusive terminal ID of the IC card from the acquisition / providing unit 38 of the IC card 3 (step S12). Then, the transmission / reception unit 21 of the electronic whiteboard 2a transmits a request for login authentication to the terminal management server 5 (Step S13). This login authentication request includes the exclusive terminal ID acquired in step S12. Thereby, the transmission / reception unit 51 of the terminal management server 5 receives the request for login authentication.

  Next, the authentication unit 52 of the terminal management server 5 performs login authentication of the IC card 3 using the terminal ID (Step S14). Specifically, the storage / readout processing unit 59 uses the exclusive terminal ID received in step S13 as a search key to set the user ID corresponding to the exclusive terminal ID in the terminal management table (see FIG. 10A). Search for. If there is a corresponding user ID, the authentication unit 52 determines that it is a valid IC card (terminal ID). If there is no corresponding user ID, the authentication unit 52 determines that the user ID is not a valid IC card (terminal ID).

  Next, the transmission / reception unit 51 of the terminal management server 5 transmits the authentication result to the electronic whiteboard 2a (Step S15). If the authentication unit 52 determines that the IC card is valid, the authentication result includes information indicating validity, a user ID, and a user name. When the authentication unit 52 determines that the IC card is not a valid IC card, the authentication result includes information indicating that the IC card is not valid. Thereby, the transmitting / receiving unit 21 of the electronic whiteboard 2a receives the authentication result.

  Next, the electronic whiteboard 2a performs a process based on the authentication result (step S16). Here, the process based on the authentication result in step S16 will be described in detail with reference to FIG. FIG. 14 is a flowchart illustrating a process based on the authentication result when logging in.

  As illustrated in FIG. 14, the determination unit 25a determines whether the authentication result received in step S15 is information indicating that the authentication result is valid (that is, the exclusive terminal ID transmitted in step S13 is valid). Is determined (step S16-1). If the determination unit 25a determines that the information is not information indicating validity, that is, determines that the login has failed (NO), the display control unit 24a displays on the display 220 the information shown in FIG. , An error screen 180 is displayed (step S16-2). If the determination unit 25a determines that the information is valid, that is, determines that the login is successful (YES), the process proceeds to step S17. Hereinafter, the description will be continued with respect to the case where the information is valid.

  The transmission / reception unit 21a of the electronic whiteboard 2a transmits file list request information indicating a request for a list of electronic files to the file management server 8 (step S17). This request includes the user name received in step S15. Thereby, the transmission / reception unit 81 of the file management server 8 receives the file list request information.

  Next, in the file management server 8, the storage / read processing unit 89 performs a search by searching the file management table (see FIG. 10B) using the user ID received in step S17 as a search key. All the file management information is read (step S18). Each file management information includes a user ID as a search key, a storage date and time, a file name, a shared terminal name, and an IP address. Then, the transmission / reception unit 81 transmits all the file management information as the request result to the electronic whiteboard 2a as a response to the request in step S17 (step S19). Thereby, the transmission / reception unit 21 of the electronic whiteboard 2a receives the request result.

  Next, the display control unit 24a of the electronic whiteboard 2a displays a save file list screen 250 on the display 220 of the electronic whiteboard 2a as shown in FIG. On the saved file list screen, a check box for selection, a save date and time, a file name, and a shared terminal name are displayed for each electronic file in the file management information received in step S19. Also, a “Load” button 257 that is pressed when reading electronic file data stored in the electronic whiteboard 2 a that is the terminal itself or another electronic whiteboard 2, and a read button are displayed on the lower right of the saved file list screen 250. "Cancel" button 259 is displayed to be pressed to stop the operation.

<Reading electronic file data>
First, a reading process of electronic file data will be described with reference to FIGS. FIG. 16 is a flowchart showing a process from when a user selects an electronic file on the electronic whiteboard to when the contents of the electronic file are displayed.

  When the logged-in user A checks a check box of a desired electronic file in FIG. 15 and presses a “Load” button 257, the receiving unit 22a receives a selection of electronic file data to be read (step S1). S31). Then, the determining unit 25a determines whether or not the IP address of the storage destination of the electronic file data whose selection has been received by the receiving unit 22a is that of the own terminal (the electronic whiteboard 2a) (Step S32). In FIG. 15, the IP address is not displayed. However, in each file management information, the storage date and time, the file name, and the IP address of the storage destination are associated with the shared terminal name for each electronic file data. Therefore, when the electronic file data is selected in step S31, the determining unit 25a determines whether the IP address associated with the selected electronic file data is that of its own electronic blackboard 2a or that of another electronic blackboard 2. Judge what is.

  Then, in step S32, when the determination unit 25a determines that the electronic blackboard 2a belongs to the own electronic blackboard 2a (YES), the storage / read processing unit 29a reads the selected electronic file data from the storage unit 2000a (step S32). Step S33). Next, the display control unit 24a displays an image as the content of the electronic file data on the display 220 of the electronic whiteboard 2a.

  On the other hand, if the determination unit 25a does not determine that the electronic blackboard 2a belongs to the electronic blackboard 2a in step S32 (NO), the process proceeds to steps S41 to S43 described later, and then proceeds to the process of step S34. move on.

<Electronic file data acquisition processing>
Next, a process in which the electronic whiteboard 2a acquires electronic file data from another electronic whiteboard 2b will be described with reference to FIG. FIG. 17 is a sequence diagram showing an electronic file data acquisition process.

  First, the transmission / reception unit 21a of the electronic whiteboard 2a transmits file request information indicating a request for electronic file data to the electronic whiteboard 2b (step S41). Electronic file identification information (storage date and time, file name) is added to the file request information. Thereby, the transmission / reception unit 21b of the electronic whiteboard 2b receives the file request information.

  Next, the storage / read processing unit 29b of the electronic whiteboard 2b reads the electronic file data specified by the electronic file identification information received in step S41 from the storage unit 2000b (step S42). Then, the transmission / reception unit 21b transmits the electronic file data read in step S42 to the requesting electronic whiteboard 2a as a response to the request in step S41 (step S43). The electronic file identification information received in step S41 is added to the electronic file data. Thereby, the transmitting / receiving unit 21a of the electronic whiteboard 2a receives the electronic file data and the electronic file identification information.

  Thus, the electronic whiteboard 2a can acquire electronic file data not stored in the terminal itself from another electronic whiteboard 2b.

<Save processing of electronic file data>
Next, a process of saving the drawn image data drawn on the electronic blackboard 2a by the user A will be described with reference to FIGS. FIG. 18 is a sequence diagram showing a process of saving electronic file data.

  First, the user A draws on the display 220 of the electronic blackboard 2a using the electronic pen 2500 (step S51). When the user A presses the “save” button 235 shown in FIG. 8B when saving the drawn image data after the drawing, the accepting unit 22a accepts the saving (step S52). . Then, the creating unit 26a creates electronic file management information (Step S53). This electronic file management information is electronic file management information that will be read later in step S18 described above.

  Next, the storage / read processing unit 29a stores the electronic file data of the drawn image in the storage unit 2000a (Step S54). Then, the transmission / reception unit 21a transmits the electronic file management information created in step S to the file management server 8 (step S55). Thereby, the transmission / reception unit 81 of the file management server 8 receives the electronic file management information.

  Next, in the file management server 8, the storage / read processing unit 89 stores and manages electronic file management information as a new record in the file management DB 8001 (step S56). Then, the transmission / reception unit 81 transmits completion information indicating that the management of the electronic file has been completed to the electronic whiteboard 2a that is the transmission source of the electronic file management information (step S57). Thereby, the transmission / reception unit 21a of the electronic whiteboard 2a receives the completion information.

  Next, in the electronic whiteboard 2a, the display control unit 24a causes the display 220 to display a message indicating that the storage of the electronic file management information is completed (Step S58).

  Accordingly, the electronic whiteboard 2a not only stores the electronic file data at its own terminal, but also transmits electronic file management information for specifying the stored electronic file data to the file management server 8. Therefore, for example, when another electronic whiteboard 2b acquires electronic file data that is not stored in its own terminal (electronic whiteboard 2b), the desired electronic file data and the electronic blackboard that is the storage destination of this data are obtained from the file management server 8. 2a can be specified.

<< Main effects of the embodiment >>
As described above, according to the present embodiment, even when the user uses the electronic whiteboard 2a different from the electronic whiteboard 2b in which the electronic file data has been stored in the past, the electronic whiteboard 2b is managed by the file management server 8. Since the user can select the desired electronic file data and the storage destination of this data by acquiring the electronic file management information, the electronic blackboard 2a requests the electronic blackboard 2b to request and acquire the desired electronic file data. can do. As a result, there is an effect that the image of the electronic file data stored in the electronic whiteboard 2b can be displayed even with the electronic whiteboard 2a.

  In addition, the electronic file data in its own exclusive folder is automatically acquired from the file management server 8 in conjunction with the login process (S11 to S16) of the user A (S17 to S20). By this. This has the effect that it is possible to prevent the time required for a meeting or class from being shortened due to the troublesome work of acquiring the desired electronic file data from the file management server 8.

  Further, the button 253a of the own exclusive folder stored in the file management server 8 is automatically displayed in conjunction with the login process (S11 to S15) of the user A. As a result, it is possible to prevent the time required for a conference or a class from being shortened due to the troublesome work of saving desired electronic file data in the file management server 8.

[Supplement]
The above-described file data is PDF data in which stroke data is embedded.
The stroke data is data converted from drawing data drawn on the display 220 by the user with the electronic pen 2500 or the hand H. The stroke data is used to identify a start time indicating the writing start time of one stroke, an end time indicating the writing end time of one stroke, a stroke color, a stroke width, and an array of passing points of the stroke. 3 shows a coordinate array. Therefore, by saving the image data in the state of the stroke data instead of the state of the image data, the stroke data can be continuously edited even after the readout.

  In the above embodiment, the process of saving electronic file data when the shared terminal is the electronic whiteboard 2a has been described, but the present invention is not limited to this. For example, the shared terminal may be a white board (white board) to which a large mobile scanner that scans a drawn image drawn with an ink pen is attached. In this case, the white plate stores the file data of the drawn image read by the mobile scanner in the USB memory 2600, the shared folder, or the exclusive folder.

  Also, the user identification information including the user ID is transmitted (step S15), but the present invention is not limited to this. For example, a user's e-mail address, URL (Uniform Resource Locator) and the like are also included.

  Further, as shown in FIG. 11, the electronic blackboard 2a obtains the exclusive terminal ID from the IC card 3 (step S12), and transmits it to the terminal management server 5 (step S13). (Step S15), but the present invention is not limited to this. For example, the user identification information such as the above-mentioned user ID is already stored in the IC card 3, and the processing of steps S13 to S15 may be omitted. In this case, user identification information such as a user ID is stored in a dedicated terminal such as the IC card 3 or the smartphone 4.

1 communication system 2a electronic blackboard (an example of a shared terminal)
2b Electronic blackboard (an example of a shared terminal)
3 IC card (example of proprietary terminal)
4 Smartphones (an example of proprietary terminals)
5 Terminal management server 8 File management server 11a PC (an example of a personal terminal)
11 PC (example of personal terminal)
12 MFP (an example of a printing device)
13 Videoconferencing Terminal 21 Transmitter / Receiver (Example of transmitting means, example of receiving means)
22 Receiving unit (an example of receiving means)
23 image / sound processing unit 24 display control unit (an example of a display control unit)
25 determining unit 26a creating unit (an example of a first creating unit)
26b creating unit (an example of a second creating unit)
28 Acquisition / Provider (Example of Acquisition Means)
29 storage / read processing unit 51 transmission / reception unit 52 authentication unit 59 storage / read processing unit 81 transmission / reception unit 89 storage / read processing unit 5001 terminal management DB
8001 File management DB
100 communication network

JP 2001-292266 A JP 2012-252495 A

Claims (10)

A shared terminal that displays images that can be viewed by multiple users,
Display control means for displaying each electronic file identification information for identifying each of a plurality of electronic file data stored in another shared terminal,
A receiving unit that receives selection of specific electronic file identification information among the electronic file identification information;
Transmission means for transmitting the specific electronic file identification information to another specific shared terminal in which specific electronic file data indicated by the specific electronic file identification information selected by the reception means is stored. When,
Receiving means for receiving the specific electronic file data transmitted by the specific other shared terminal as a response to the transmission of the specific electronic file identification information by the transmitting means;
Has,
The sharing terminal, wherein the display control means displays an image based on the specific electronic file data. The transmitting means manages user identification information for identifying a user, the respective electronic file identification information, and shared terminal location information indicating a location where the other shared terminal is present on a communication network in association with each other. Transmitting the user identification information to the file management server,
The receiving means receives the electronic file identification information and the shared terminal location information transmitted by the file management server as a response to the transmission of the user identification information by the transmission means,
The transmission unit transmits the specific electronic file identification information selected by the reception unit to the other shared terminal located at the location indicated by the shared terminal location information. The sharing terminal according to claim 1.   The display control means identifies each piece of shared terminal identification information for identifying each of the plurality of other shared terminals, and identifies each of the single or plurality of electronic file data stored in each of the plurality of other shared terminals. The sharing terminal according to claim 2, wherein the electronic file identification information for displaying the electronic file is displayed. The transmitting means includes: the user identification information; the shared terminal identification information; shared terminal location information indicating a location where the other shared terminal identified by the shared terminal identification information is located; For the file management server managing the electronic file identification information stored in the terminal in association with each other, transmitting the user identification information,
The receiving unit receives the electronic file identification information, the shared terminal identification information, and the shared terminal location information transmitted by the file management server based on the transmission of the user identification information by the transmission unit. And
The transmission unit transmits the specific electronic file identification information selected by the reception unit to the other shared terminal located at the location indicated by the shared terminal location information. The sharing terminal according to claim 3. The sharing terminal according to claim 2, further comprising:
The receiving means receives the storage of the electronic file data,
Creation means for creating electronic file identification information for identifying the electronic file data accepted for storage,
Storage means for storing the electronic file data accepted for storage,
Has,
The transmitting unit transmits, to the file management server, the electronic file identification information created by the creating unit, the user identification information, and shared terminal location information indicating a location of the shared terminal on a communication network. A sharing terminal characterized by transmitting a message.   The shared terminal according to claim 1, wherein the electronic file data is PDF data in which stroke data is embedded.   The shared terminal according to any one of claims 1 to 6, wherein the shared terminal is an electronic blackboard. A sharing terminal according to any one of claims 2 to 5,
The file management server;
A communication system comprising: A display method performed by a shared terminal that displays images that can be viewed by multiple users,
The shared terminal,
A display control step of displaying each electronic file identification information for identifying each of the plurality of electronic file data stored in another shared terminal,
A receiving step of receiving a selection of a specific electronic file identification information among the electronic file identification information;
A transmission step of transmitting the specific electronic file identification information to another specific shared terminal in which specific electronic file data indicated by the specific electronic file identification information selected and received by the reception step is stored. When,
A receiving step of receiving the specific electronic file data transmitted by the specific other shared terminal as a response to the transmission of the specific electronic file identification information by the transmitting step;
Run
The display method, wherein the display control step displays an image based on the specific electronic file data.   A program for causing a computer to realize each means according to any one of claims 1 to 9.