JP2020161120A - Information transmission system, information processing apparatus, transmission method, and program - Google Patents

Abstract

To reduce a time required for displaying a material in a remote conference.SOLUTION: The present invention relates to an information transmission system by which a plurality of terminals perform a remote conference via a network, and which comprises: storage control means that stores shared information including a plurality of pages shared between the terminals that participate in the same remote conference; display control means that controls the pages in the shard information displayed on the terminals that participate in the same remote conference; determination means that determines a transmission order of the pages in the shared information transmitted to the terminals that participate in the same remote conference according to the pages in the shared information the display of which is controlled by the display control means; and transmission means that transmits the pages included in the shared information to the terminals in the order determined by the determination means.SELECTED DRAWING: Figure 4

Description

The present invention relates to information transmission systems, information processing devices, transmission methods, and programs.

As a system for conducting a remote conference including a video conference, a system for sharing materials at the same time as remote communication such as video video and audio is known at each participant's terminal.

In a system for conducting a remote conference, image data indicating a material displayed on one terminal side is transmitted to the other terminal via a communication network to share the image data (see Patent Document 1).

However, conventionally, each terminal participating in the remote conference downloads the shared information shared between the terminals before participating in the remote conference. For example, if the shared information is a file consisting of a plurality of pages, the shared information is displayed after downloading all the pages of the shared information. Therefore, if the material used (displayed) in the teleconferencing is, for example, the 4th page, and the material is downloaded in order from the 1st page, the participant displays the material currently used during that time. I can't do it right away. When the amount of data of the material is large or the network bandwidth is narrow, there is a problem that it takes more time to share the material and it takes time to display the material currently used.

The present invention has been made in view of the above, and provides an information transmission system, an information processing device, a transmission method, and a program capable of shortening the time required to display materials in a remote conference. The purpose.

In order to solve the above-mentioned problems and achieve the object, the present invention is an information transmission system for a plurality of terminals to hold a remote conference via a network, and the terminals participating in the same remote conference. The same remote conference as the storage control means for storing shared information including a plurality of pages shared by the user and the display control means for controlling the page of the shared information displayed on the terminal participating in the same remote conference. The shared information includes a determination means for determining the transmission order of the shared information pages transmitted to the terminal participating in the above according to the shared information page whose display is controlled by the display control means, and the shared information to the terminal. It is characterized by having a transmission means for transmitting each page in the order determined by the determination means.

According to the present invention, it is possible to shorten the time required to display the material in the remote conference.

FIG. 1 is a schematic diagram of an information transmission system according to the present embodiment. FIG. 2 is a diagram showing an example of the hardware configuration of the electronic blackboard. FIG. 3 is a diagram showing an example of the hardware configuration of the communication management system. FIG. 4 is a diagram showing an example of the configuration of the functional block of the electronic blackboard. FIG. 5 is a diagram showing an example of the configuration of a functional block of a communication management system. FIG. 6 is a diagram showing an example of the derivation flow of the reception start page derived by the sharing priority determination unit. FIG. 7 is a diagram showing an example of the derivation flow of the transmission start page at the time of reading the file. FIG. 8 is a diagram showing an example of display on the screen of the display on the electronic blackboard. FIG. 9 is a conceptual diagram showing an example of material sharing. FIG. 10 is a conceptual diagram showing an example of material sharing when participating in the middle.

Hereinafter, embodiments of the information transmission system, information processing apparatus, transmission method, and program according to the present invention will be described in detail with reference to the accompanying drawings. Below, an electronic blackboard is shown as an example of a "terminal". A communication management system (message server) and a storage server are shown as an example of a "server". Further, an electronic blackboard, a communication management system (message server), and a storage server are examples of "information processing devices".

(Embodiment)
First, using FIG. 1, an information transmission system for holding a remote conference while drawing between a plurality of electronic blackboards 1 will be described. FIG. 1 is a schematic diagram of an information transmission system according to the present embodiment. The remote conference also includes "video conference (also called video conference)".

The information transmission system includes a plurality of electronic blackboards 1, a communication management system 5, and a storage server 7. In addition to this, a relay device that relays data transmitted and received between each device is also included. The electronic whiteboard 1 may collectively refer to video data and sound data for calls, and shared material data such as image data and stroke data for sharing (hereinafter, shared data (including images)) as shared materials. By performing mutual communication (there is), communication is performed between a plurality of electronic blackboards 1 such as base A and base B. The stroke data is data necessary for reproducing (reproducing) the stroke image, and includes coordinate data, line width data, line color data, vector data, and the like. The electronic blackboard 1 enables a remote video call by reproducing the video and sound of the other party by transmitting and receiving video data and sound data for a call.

The electronic blackboard 1 allows participants using this system to share the same material image by transmitting and receiving shared material data (data of a plurality of pages such as image data) which is shared information. The material image is an image displayed on the display of the electronic blackboard 1, such as a conference material, a background image displayed on the display, and a captured screen when the display screen is captured. Further, the electronic blackboard 1 can share the same stroke image by the participants who use the system by transmitting and receiving the stroke data of the stroke image for sharing. The stroke image is an image showing a line or the like drawn by a user with a handwritten stroke with an electronic pen or the like. The stroke image is displayed by stroke data indicating points that specify coordinates on the display.

Although two electronic blackboards 1 are shown in FIG. 1, data may be shared between three or more electronic blackboards by participating (joining) in the middle.

In FIG. 1, an electronic blackboard equipped with a video conferencing function is shown as an example of the electronic blackboard 1. The image of the video data may be a moving image or a still image.

Further, the electronic blackboard as the request source for requesting the start of the video conference is represented as the "start terminal", and the electronic blackboard as the destination (relay destination) as the request destination is represented as the "destination terminal".

The communication management system 5 is configured by a computer and manages login authentication from the electronic blackboard 1, the communication status of the electronic blackboard 1, a destination list, and the like. The communication management system 5 also functions as a message server (an example of "memory control means"), and manages operation information, stroke data for sharing, and the like among a plurality of electronic blackboards 1. The operation information is information indicating operations such as addition, deletion, writing, and change of display position of shared materials. Since the operation information is transmitted and received as information for controlling the display of each electronic blackboard 1, it functions as a "display control means". Here, the change of the display position refers to a change of the material page to be displayed, for example, a change from the first page to the second page of the material.

The storage server (an example of "memory control means") 7 is configured by a computer, stores image data of shared materials uploaded from the electronic blackboard 1, and downloads the image data to the electronic blackboard 1 of other participants.

The communication management system 5 and the storage server 7 may be constructed by a single computer, or may be constructed by a plurality of computers arbitrarily assigned by dividing each part (function or means).

Further, in this system, a management information session for transmitting and receiving various management information is established between the electronic blackboards 1 via the communication management system 5.

<Hardware configuration of electronic blackboard>
FIG. 2 is a diagram showing an example of the hardware configuration of the electronic blackboard 1. As shown in FIG. 2, the electronic blackboard 1 includes a CPU (Central Processing Unit) 101, a ROM (Read Only Memory) 102, a RAM (Random Access Memory) 103, an SSD (Solid State Drive) 104, and a network I / It includes an F105 and an external device connection I / F (Interface) 106.

Of these, the CPU 101 controls the operation of the entire electronic blackboard 1. The ROM 102 stores a program used to drive the CPU 101 such as the CPU 101 and the IPL (Initial Program Loader). The RAM 103 is used as a work area of the CPU 101. The SSD 104 stores various data such as a program for an electronic blackboard. The network I / F 105 controls communication with the communication network 4. The external device connection I / F 106 is an interface for connecting various external devices. The external device in this case is, for example, a USB (Universal Serial Bus) memory 130, an external device (microphone 140, speaker 150, camera 160).

Further, the electronic blackboard 1 includes a capture device 111, a GPU 112, a display controller 113, a contact sensor 114, a sensor controller 115, an electronic pen controller 116, a short-range communication circuit 119, an antenna 119a of the short-range communication circuit 119, a power switch 122, and the like. The selection switches 123 are provided.

Of these, the capture device 111 causes the display of the external PC (Personal Computer) 170 to display the video information as a still image or a moving image. The GPU (Graphics Processing Unit) 112 is a semiconductor chip that specializes in graphics. The display controller 113 controls and manages the screen display in order to output the output image from the GPU 112 to the display 180 or the like.

The contact sensor 114 detects that the electronic pen 190, the user's hand H, or the like touches the display 180. The sensor controller 115 controls the processing of the contact sensor 114.

The contact sensor 114 inputs and detects the coordinates by the infrared blocking method. In the method of inputting the coordinates and detecting the coordinates, two light receiving and emitting devices installed at both upper ends of the display 180 radiate a plurality of infrared rays in parallel with the display 180 and are provided around the display 180. This is a method of receiving light that is reflected by a reflecting member and returns on the same optical path as the light path emitted by the light receiving element. The contact sensor 114 outputs an infrared ID emitted by two light emitting / receiving devices blocked by the object to the sensor controller 115, and the sensor controller 115 specifies a coordinate position which is a contact position of the object. The electronic pen controller 116 communicates with the electronic pen 190 to determine whether or not there is a touch of the pen tip or a touch of the pen tip on the display 180. The short-range communication circuit 119 is a communication circuit such as NFC (Near Field Communication) or Bluetooth (registered trademark). The power switch 122 is a switch for switching the power ON / OFF of the electronic blackboard 1. The selection switches 123 are, for example, a group of switches for adjusting the brightness and hue of the display 180.

Further, the electronic blackboard 1 is provided with a bus line 110. The bus line 110 is an address bus, a data bus, or the like for electrically connecting each component such as the CPU 101 shown in FIG.

The contact sensor 114 is not limited to the infrared blocking method, but is a capacitive touch panel that specifies a contact position by detecting a change in capacitance, and a contact position is specified by a voltage change between two opposing resistance films. Various detection means such as a resistance film type touch panel and an electromagnetic induction type touch panel that detects the electromagnetic induction generated when a contact object comes into contact with the display unit and specifies the contact position may be used. Further, the electronic pen controller 116 may determine whether or not there is a touch not only on the pen tip and pen end of the electronic pen 190, but also on a portion gripped by the user of the electronic pen 190 and other electronic pen portions.

<Hardware configuration of communication management system and storage server>
FIG. 3 is a diagram showing an example of the hardware configuration of the communication management system 5 according to the present embodiment. Computers as an example of the communication management system 5 include CPU 501, ROM 502, RAM 503, HD (Hard Disk) 504, HDD (Hard Disk Drive) controller 505, display 506, external device connection I / F (Interface) 508, network I / It includes an F509, a controller 511, a pointing device 512, a DVD-RW (Digital Versatile Disk ReWritable) drive 514, a media I / F 516, and a bus line 510.

Of these, the CPU 501 controls the operation of the entire communication management system 5. The ROM 502 stores a program used to drive the CPU 501 such as an IPL. The RAM 503 is used as a work area of the CPU 501. The HD504 stores various data such as a communication management program. The HDD controller 505 controls reading or writing of various data to the HD 504 according to the control of the CPU 501.

The display 506 displays various information such as cursors, menus, windows, characters, or images. The external device connection I / F 508 is an interface for connecting various external devices. The network I / F 509 is an interface for data communication using a communication network 4 such as the Internet. The keyboard 511 is a kind of input means including a plurality of keys for inputting characters, numerical values, various instructions, and the like. The pointing device 12 is a kind of input means for selecting and executing various instructions, selecting a processing target, moving a cursor, and the like.

The DVD-RW drive 514 controls reading or writing (storage) of data to the DVD-RW. Note that you may control the reading or writing (storage) of data to a disc such as BD-RE (Blu-ray (registered trademark) Disc Rewritable) instead of the DVD-RW drive. The media I / F 516 controls reading or writing (storage) of data to a recording medium 515 such as a flash memory.

Further, 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.

Since the hardware configuration of the storage server 7 shown in FIG. 1 is the same as the hardware configuration of the communication management system 5, the description thereof will be omitted. However, in the case of the storage server 7, the image storage program is stored in the HD504.

<Functional configuration of electronic blackboard 1>
As shown in FIG. 4, the electronic blackboard 1 includes a transmission / reception unit 11a, a reception unit 12a, a video / sound processing unit 13a, a display control unit 14a, a determination unit 15a, a sharing priority determination unit 16a, and an image processing unit 17a. , A short-range communication unit 18a, and a storage / reading processing unit 19a. Each of these parts is a function realized by operating any of the components shown in FIG. 2 by an instruction from the CPU 101 according to a program developed on the RAM 103 from the SSD 104, or a means for the function. is there. Further, the electronic blackboard 1 has a storage unit 1000a constructed by the RAM 103 or the like shown in FIG.

The transmission / reception unit 11a transmits / receives various data (or information) to / from another terminal, device, or system via the communication network 4. In addition, the transmission / reception unit 11a also serves as a start unit, and performs a process of starting communication with another communication terminal such as the electronic blackboard 1. Here, the transmission / reception unit 11a corresponds to a "transmission means", a "reception means", a "download means", and the like. The reception unit 12a receives various inputs from the user using the electronic pen 190 or the like.

The video / sound processing unit 13a performs the main processing of the video conferencing function. For example, the video / sound processing unit 13a performs digital processing such as encoding of video data and sound data together with the output signal of the microphone 140 and the output signal of the camera 160. Further, the video / sound processing unit 13a generates a video signal or a sound signal based on the video data and the sound data received by the transmission / reception unit 11a. The video / sound processing unit 13a performs processing for combining video data having different resolutions.

The display control unit 14a controls to output a video signal (image signal) or the like to the display 180. The determination unit 15a makes various determinations.

The sharing priority determination unit 16a derives the order in which the shared materials are downloaded (corresponding to the transmission order when viewed from the transmitting side) when participating in the remote conference in the middle. Here, the sharing priority determination unit 16a prioritizes the order in which communication is started, and determines the order in which the shared materials are downloaded. The shared priority determination unit 16a corresponds to the "determining means". The order in which communication is started refers to the order in which mid-career participants can immediately join the meeting, for example, the order in which the currently displayed shared material or the most recently used shared material is prioritized.

The image processing unit 17a performs the main processing of the electronic blackboard function. For example, the image processing unit 17a creates a stroke image and stroke data based on the stroke of the electronic pen 190 or the like received by the reception unit 12a, or creates a stroke image based on the stroke data received by the transmission / reception unit 11a. Or do. Further, the image processing unit 17a generates an image signal based on the image data of the material image received by the transmission / reception unit 11a.

The short-range communication unit 18a acquires and provides data by short-range wireless communication with each terminal having the short-range communication unit.

The storage / reading processing unit 19a performs a process of storing various data in a recording medium 1010a such as a storage unit 1000a or a USB memory 130, and reading various data stored in the storage unit 1000a or the recording medium 1010a.

Further, the storage unit 1000a overwrites and stores the video data and the sound data received when communicating with another terminal each time it is received. Of these, the image is displayed on the display 180 by the video data before being overwritten, and the sound is output from the speaker 150 by the sound data before being overwritten.

<Functional configuration of communication management system>
As shown in FIG. 5, the communication management system 5 includes a transmission / reception unit 51, an authentication unit 52, a generation unit 53, a selection unit 54, a determination unit 55, and a storage / reading processing unit 59. Each of these parts functions or functions as any of the components shown in FIG. 5 operates by an instruction from the CPU 501 according to a communication management program developed from the HD 504 on the RAM 503. It is a means. Further, the communication management system 5 has a storage unit 5000 constructed by the HD504.

The transmission / reception unit 51 transmits / receives various data (or information) to / from another terminal, device, or system via the communication network 4. Here, the transmission / reception unit 51 corresponds to the "transmission means" and the "reception means". The authentication unit 52 searches the authentication management DB 5001 and authenticates. The generation unit 53 generates a session ID for identifying the communication session based on the communication start request from the electronic blackboard 1. The selection unit 54 performs a process of finally selecting one relay device 3 from the plurality of relay devices 3. The determination unit 55 makes various determinations. The storage / reading processing unit 59 performs a process of storing various data in the storage unit 5000 and reading various data stored in the storage unit 5000.

(Database configuration)
The storage unit 5000 is constructed with an authentication management DB 5001, a terminal management DB 5002, a destination list management DB 5003, a session management DB 5004, a communication information management DB 5005, a storage server management DB 5006, and a message management DB 5007.

The authentication management DB 5001 is managed by associating each password with each terminal ID of the electronic blackboard 1. In the terminal management DB 5002, for each terminal ID for identifying each electronic blackboard 1 (communication terminal), the destination name when each electronic blackboard 1 is set as the destination, the operating state of each electronic blackboard 1, and the login request information described later are displayed. The reception date and time received by the communication management system 5 and the IP address of each electronic blackboard 1 (communication terminal) are associated and managed.

In the destination list management DB 5003, all the terminal IDs of the destination terminals registered as candidates for the electronic blackboard 1 (destination terminal) are associated with the terminal ID of the electronic blackboard 1 (start terminal) requesting the start of communication. Is managed. Candidates for destination terminals are updated by being added or deleted at the request of addition or deletion to the communication management system 5 from any starting terminal. The session management DB 5004 manages the communication session ID of each electronic blackboard (communication terminal). The communication information management DB 5005 is managed in association with the reception date and time, the IP address of the relay device 3, and the maximum data transmission rate (Mbps) in the relay device 3.

The storage server management DB 5006 manages the authentication information and the address of the storage server 7. Message information such as operation information is managed in the message management DB 5007.

<Reception derivation flow>
Next, the reception flow of shared materials at the time of participation in the middle will be described. When participating in a conference that has already been started, the electronic blackboard (communication terminal) 1 first receives operation information in order to receive the shared materials stored in the communication management system 5. The operation information is information including the total number of pages of the shared material, the displayed page, and the like. In the electronic blackboard 1, the sharing priority determination unit 16a executes a derivation flow for determining the order of the materials to be received based on the received operation information.

The transmission / reception unit 11a receives the shared materials in a predetermined order from the reception start page derived by the sharing priority determination unit 16a. For example, the page numbers are incremented one by one from the reception start page, and the one with the higher page number is received first based on the displayed page. After that, when the last page of the upper limit is received, the page number is increased one by one from the first page having a lower page number than the standard, and the remaining unreceived pages are received.

FIG. 6 is a diagram showing an example of the derivation flow of the reception start page derived by the shared priority determination unit 16a. First, the sharing priority determination unit 16a determines whether or not there is an unreceived page based on the received operation information (step S1).

When there is an unreceived page (step S1: Yes), the sharing priority determination unit 16a uses the displayed page as a reference page (step S2). The display page is a page displayed between electronic blackboards that have already participated in the conference. The page specified by the terminal from which the shared material is shared is also displayed between the electronic blackboards participating in the conference. That is, the sharing priority determination unit 16a positions the displayed page as the page to be received with the highest priority.

Subsequently, it is determined whether or not the reference page (initially the display page) has not been received (step S3). When the reference page has not been received (step S3: Yes), the reference page is instructed to the transmission / reception unit 11a as the reception start page (step S4). As a result, the transmission / reception unit 11a receives the materials in a predetermined order as described above from the reception start page.

If there are no unreceived pages (step S1: No), all the materials have been received, so the derivation process ends.

If the display page set as the reference page has already been received (step S3: No), the reference page is incremented by the predetermined order described above, that is, by +1 (step S5), and the same processing is performed from step S3. I do. For example, if the display page is the third page and the third page has already been received, the display page is received from the fourth page. If the 4th page has already been received, it will be received from the 5th page. If the last page has been received, the reception start page is derived in order from the first page (the first page used).

In this way, the electronic blackboard (communication terminal) that participated in the middle can first receive the display page, and then can receive the pages in order from the page most likely to be used. Therefore, even if you join in the middle, you can join the meeting immediately.

In the electronic blackboard (communication terminal) that participated in the middle, the display page was changed between the electronic blackboards that had already participated while the materials were being received in order from the reception start page determined by the above-mentioned derivation process. In that case, the reception is interrupted, and the derivation flow of the reception start page is executed again to redetermine the reception start page. As a result, even if the displayed page is changed in the middle, the electronic blackboard (communication terminal) that participated in the middle can immediately respond to the change and preferentially receive the changed page in use. Can be done.

<Transmission derivation flow>
When reading materials during remote communication, the electronic blackboard (communication terminal) determines the transmission order of the read materials.

FIG. 7 is a diagram showing an example of the derivation flow of the transmission start page at the time of reading the file. The difference from FIG. 6 is that transmission is used instead of reception, and the flow can be described in substantially the same manner as in FIG. In FIG. 7, steps S11 to S15 correspond to steps S1 to S5 in FIG. The description of FIG. 7 will be omitted because the description of FIG. 6 is repeated.

FIG. 8 is a diagram showing an example of the display of the screen of the display 180 on the electronic blackboard 1. As shown in FIG. 8, on the screen 1800 of the electronic blackboard 1, a menu button 1801 and a control button 1802 for shared materials are displayed. The menu button 1801 is arranged with editing buttons such as pen input, line color, and line thickness.

The control button 1802 displays thumbnail images of the shared materials (materials on the first to fourth pages out of the five pages in FIG. 8), and the pages can be switched and changed. It is also possible to input captured images.

The pages to be input include, for example, the following.
(1) The user inputs handwriting on the screen with an electronic pen (2) The screen of the user's PC or tablet is displayed on the electronic whiteboard by connecting the electronic blackboard and the user's PC or tablet via a network or wire. The screen is captured while the screen is being displayed. (3) The user performs handwriting input with a pen on the captured image of the screen of the user's PC or tablet. (4) PDF (Portable Document Format) read by the user. ) And each page of materials such as power points and words (5) Handwritten input by the user on the materials such as PDF, power points and words read by the user

(Explanation of the sequence of sharing materials between participants)
FIG. 9 is a conceptual diagram showing an example of material sharing. It is assumed that the electronic blackboard (communication terminal) of the base A and the electronic blackboard (communication terminal) of the base B are participating in the remote conference, and the electronic blackboard (communication terminal) of the base C (not shown) participates in the middle. ing. In the following, each electronic blackboard (communication terminal) will be described at each base as bases A, B, and C for convenience.

Base A and Base B hold shared materials with each other, and if changes are made to the shared materials of Base A, the changes will be reflected in the shared materials of Base B. For example, it is assumed that the operation of changing the display position of the shared material is performed at the base A. In that case, the operation information (display position change) for the shared material at the base A is transmitted to the communication management system 5 (message server). When the communication management system 5 receives the operation information (display position change) from the base A, the communication management system 5 saves the operation information and broadcasts the operation information to the participants (each other base). As a result, the base B can receive the operation information (change of display position) and reflect it in the shared material of the base B.

Further, it is assumed that the material is added / deleted to the shared material at the base A, for example, a material image is added. In this case, the base A uploads the material to the image storage device (storage server) 7. Further, the base A transmits the operation information (in this case, addition of materials) to the communication management system 5 (message server). When the communication management system 5 receives the operation information (addition of materials) from the base A, the communication management system 5 saves the operation information and broadcasts the operation information to the participants. When the base B receives the operation information (addition of materials), the base B downloads the materials from the image storage device (storage server) 7 and adds them to the shared materials.

<Explanation of the material sharing sequence when participating in the middle>
FIG. 10 is a conceptual diagram showing an example of material sharing when participating in the middle. It is assumed that the base A and the base B hold the shared materials, and the displayed page is the fourth page. When the base C participates here, the base C first acquires the operation information for the material from the communication management system 5 (message server).

The base C can detect that the display page is the fourth page from the acquired operation information. As a result, the base C determines the reception start from the 4th page by the derivation process of the reception start page, downloads the material data of the image storage device (storage server) 7 to the 4th page, and constructs the shared material. In addition, since remote communication is likely to proceed according to the material, after the construction of the displayed page is completed, the material on the next page (fifth page in this example) is downloaded, and the next page is sequentially displayed. Download the page and build shared materials. Then, after downloading the final page (7th page in this example), the remaining pages (1st page, 2nd page, 3rd page) are downloaded in order from the first page to construct the shared material.

Furthermore, if the displayed page is changed during sharing, the reception start page is changed so that the page to be downloaded accordingly is downloaded from the changed page.

In addition, when the material size is large, the material sharing is transmitted from the page necessary for communication, for example, when the large material is read at the base A. Specifically, the page displayed on the base A side is preferentially transmitted. If the page displayed on the base A side is changed, the page to be sent with priority is changed accordingly.

By doing so, at the base C that participates in the middle, the materials can be downloaded in order from the page displayed at the base A and the base B, so even if the download of other non-displayed materials is not completed. , You can participate in remote communication immediately.

In the present embodiment, a sharing priority determination unit is provided in the communication terminal, and the communication terminals participating in the remote conference execute the above-mentioned derivation flow, so that the communication terminals participating in the middle of the conference have the highest priority in order from the display page. Although the configuration for receiving the page is shown, the derivation process may be performed on the server side such as the communication management system. For example, the communication management system is provided with a sharing priority determination unit to execute the derivation flow. In this case, when the communication management system detects a communication terminal that participates in the remote conference in the middle, the above-mentioned derivation flow is executed, and the pages with the highest priority are in order from the start page (mainly the display page) determined by the derivation flow. Is transmitted to the communication terminal. Since the procedure of the derivation flow is substantially the same as that of the communication terminal, further detailed description of the flow on the server side will be omitted.

The program executed by the information processing apparatus of the present embodiment may be provided by incorporating it into the ROM in advance. In addition, files in an installable or executable format are provided by being recorded on a computer-readable recording medium such as a CD-ROM, flexible disk (FD), CD-R, or DVD (Digital Versatile Disk). May be good. Further, it may be configured to be stored on a computer connected to a network such as the Internet and provided by downloading via the network.

(effect)
As described above, in the information transmission system according to the present embodiment, it is possible to shorten the time until the material is displayed in the remote conference.

1 Electronic blackboard 11a Transmission / reception unit 12a Reception unit 13a Video / sound processing unit 14a Display control unit 15a Judgment unit 16a Shared priority judgment unit 17a Image processing unit 18a Short-range communication unit 19a Storage / reading processing unit

Japanese Unexamined Patent Publication No. 2011-254453

Claims (13)

An information transmission system for multiple terminals to hold a remote conference via a network.
A storage control means for storing shared information including a plurality of pages shared between the terminals participating in the same remote conference, and
A display control means for controlling the page of the shared information displayed on the terminal participating in the same remote conference, and
A determination means for determining the transmission order of the shared information pages transmitted to the terminals participating in the same remote conference according to the shared information pages whose display is controlled by the display control means.
A transmission means for transmitting each page included in the shared information to the terminal in the order determined by the determination means, and a transmission means.
An information transmission system characterized by having. The determination means determines the transmission order by giving the highest priority to the page displayed by the terminal participating in the same remote conference.
The information transmission system according to claim 1, wherein the information transmission system is characterized by the above. The transmission means is based on a page displayed by the terminal participating in the same remote conference, from the reference page, a page with a page number higher than the reference page number, and then from the reference page number. Send a page with a lower page number,
The information transmission system according to claim 2, wherein the information transmission system is characterized by the above. When the page displayed by the terminal participating in the same remote conference is changed, the determination means redetermines the transmission order based on the changed page.
The information transmission system according to claim 3, wherein the information transmission system is characterized by the above. The determination means determines the transmission order when the terminal participates in the remote conference in the middle.
The information transmission system according to any one of claims 1 to 4, wherein the information transmission system is characterized by the above. An information processing device that holds a remote conference with multiple other information processing devices via a network.
A determination means for determining the download order of the shared information pages displayed in the information processing apparatus participating in the same remote conference according to the shared information pages whose display in the information processing apparatus is controlled.
A download means for downloading each page included in the shared information in the order determined by the determination means, and
An information processing device characterized by having. The determination means determines the download order with the highest priority given to the pages displayed by the information processing apparatus participating in the same remote conference.
The information processing apparatus according to claim 6. The download means is based on a page displayed by the information processing apparatus participating in the same remote conference, from the reference page, a page with a page number higher than the reference page number, and then the reference page. Download pages with page numbers lower than the number,
The information processing apparatus according to claim 7. When the page displayed by the information processing apparatus participating in the same remote conference is changed, the determination means redetermines the download order based on the changed page.
The information processing apparatus according to claim 8. An information processing device that manages remote conferences between multiple terminals.
A storage control means for storing shared information including a plurality of pages shared between the terminals participating in the same remote conference, and
A display control means for controlling the page of the shared information displayed on the terminal participating in the same remote conference, and
A determination means for determining the transmission order of the shared information pages transmitted to the terminals participating in the same remote conference according to the shared information pages whose display is controlled by the display control means.
A transmission means for transmitting each page included in the shared information to the terminal in the order determined by the determination means, and a transmission means.
An information processing device characterized by having. There is a transmission method that transmits multiple pages included in shared information in an information transmission system in which multiple terminals hold remote conferences.
A step of controlling the page of the shared information displayed on the terminal participating in the same remote conference, and
A step of determining the transmission order of the shared information pages transmitted to the terminal participating in the same remote conference according to the shared information page whose display is controlled.
A step of transmitting each page included in the shared information to the terminal in the determined order, and
Transmission method including. Computer,
A determination means for determining the download order of the shared information pages displayed in the information processing devices participating in the same remote conference according to the shared information pages whose display in the information processing device is controlled.
A program for functioning as a download means for downloading each page included in the shared information in the order determined by the determination means. Computer,
A display control means that controls the page of shared information displayed on terminals participating in the same remote conference,
A determination means for determining the transmission order of the shared information pages transmitted to the terminals participating in the same remote conference according to the shared information pages whose display is controlled by the display control means.
A program for functioning as a transmission means for transmitting each page included in the shared information to the terminal in the order determined by the determination means.

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