JP5953669B2 - Conference system and document display method - Google Patents

Description

The present invention relates to a conference system and a material display method .

  In a meeting in which materials are displayed on a display device that can be viewed by a plurality of people, such as a projector, and a presentation is performed, materials displayed on the display device and other materials are printed out and distributed. In addition, it has already been proposed to achieve paperlessness and ease of distribution by transmitting information on materials used in the conference to the information display terminals of the conference participants (see, for example, Patent Document 1). .

  However, whether the above-mentioned printout is distributed or the technique disclosed in Patent Document 1 is used, the conference participants can freely view the distributed or transmitted material regardless of the progress of the presentation. It is. Therefore, when the conference participant prefetches the material, the impression given to the conference participant by the presentation may not be as intended by the presenter.

  The present invention has been made to solve such a problem, and an object of the present invention is to enable disclosure of information as intended by a presenter in a conference system in which conference materials are distributed by an information display terminal. .

In order to solve the above-described problem, an aspect of the present invention is a conference system including an information processing device having a function of displaying information on materials distributed in a conference and a control device that controls the progress of the conference, The control device includes: a display control unit that displays the material on a control-side display device connected to the control device; and the information processing device according to a progress of a conference corresponding to the material displayed on the control-side display device Corresponding to the material table displayed on the control side display device and the information transmission unit that transmits the information of the material that can be displayed in advance to the information processing device in advance and progress information indicating a progress of the conference that, depending on the degree of progress the progress information indicates, among the information previously sent the article to the information processing apparatus, Contact to the information processing apparatus And a decoding key for decoding the article that can be displayed Te, a progress degree transmission unit that transmits to the information processing apparatus, the information processing apparatus, acquires and stores medium information encrypted said article A material information storage unit to store; a progress table acquisition unit that acquires the progress table and stores it in a storage medium; a progress acquisition unit that acquires the progress information and the decryption key from the control device; Based on a progress table, a material information acquisition unit that acquires and acquires information on a material specified according to the acquired progress information using a decryption key acquired together with the progress information, and And a material display processing unit for displaying information on the acquired material on a display device.

  According to the present invention, it is possible to disclose information as intended by a presenter in a conference system in which conference materials are distributed by an information display terminal.

It is a figure which shows the operation | use form of the conference system which concerns on embodiment of this invention. It is a block diagram which shows typically the hardware constitutions of the information processing apparatus which concerns on embodiment of this invention. It is a block diagram which shows the function structure of the presentation control terminal which concerns on embodiment of this invention. It is a figure which shows the example of the presentation progress table which concerns on embodiment of this invention. It is a block diagram which shows the function structure of the client terminal which concerns on embodiment of this invention. It is a sequence diagram which shows operation | movement of the system which concerns on embodiment of this invention. It is a figure which shows GUI of the browser application in the client terminal which concerns on embodiment of this invention. It is a flowchart which shows operation | movement of the browser application which concerns on embodiment of this invention. It is a sequence diagram which shows operation | movement of the system which concerns on other embodiment of this invention. It is a flowchart which shows operation | movement of the presentation control terminal which concerns on other embodiment of this invention. It is a figure which shows the example of the data display designation | designated table which concerns on other embodiment of this invention. It is a sequence diagram which shows operation | movement of the system which concerns on other embodiment of this invention. It is a figure which shows the material URL table which concerns on other embodiment of this invention. It is a figure which shows the example of the disclosure list information which concerns on other embodiment of this invention.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In the present embodiment, as an example of a conference system, a document is displayed on a projector that performs display for viewing by a plurality of conference participants, and material information is displayed on an information display terminal that each conference participant browses. A system for displaying materials on the information display terminal of each conference participant by distributing will be described.

  FIG. 1 is a diagram illustrating an example of an operation mode of the conference system according to the present embodiment. As shown in FIG. 1, the conference system according to the present embodiment includes a projector 1, a presentation control terminal 2, client terminals 3a, 3b, 3c (hereinafter collectively referred to as client terminal 3) and a document management server 4, and these Is operated in the connected network.

  The projector 1 is a display device that performs display for viewing by a plurality of conference participants, and may be a large-screen liquid crystal display device, an electronic blackboard, or the like. The presentation control terminal 2 is an information processing terminal operated by the presenter, and performs display of materials on the projector 1, management of presentation progress, management of display of materials on each client terminal 3, and the like. The client terminal 3 is a terminal for displaying information browsed by each conference participant, and an information processing terminal such as a notebook personal computer, a tablet terminal, or a PC (Personal Computer) is used. The document management server 4 is a file server that stores information on materials displayed on the projector 1 and materials distributed to the client terminal 3.

  Next, a hardware configuration of an information processing apparatus such as the presentation control terminal 2, the client terminal 3, and the document management server 4 according to the present embodiment will be described. FIG. 2 is a block diagram illustrating a hardware configuration of the information processing apparatus according to the present embodiment. In the following description, the hardware configuration of the client terminal 3 will be described as an example, but the same applies to the presentation control terminal 2 and the document management server 4.

  As shown in FIG. 2, the information processing apparatus according to the present embodiment includes the same configuration as that of a general server or PC. That is, the document management apparatus 1 according to the present embodiment includes a CPU (Central Processing Unit) 10, a RAM (Random Access Memory) 20, a ROM (Read Only Memory) 30, an HDD (Hard Disk Drive) 40, and an I / F 50. 80 is connected. Further, an LCD (Liquid Crystal Display) 60 and an operation unit 70 are connected to the I / F 50.

  The CPU 10 is a calculation means and controls the operation of the entire information processing apparatus. The RAM 20 is a volatile storage medium capable of reading and writing information at high speed, and is used as a work area when the CPU 10 processes information. The ROM 30 is a read-only nonvolatile storage medium and stores a program such as firmware. The HDD 40 is a non-volatile storage medium that can read and write information, and stores an OS (Operating System), various control programs, application programs, and the like.

  The I / F 50 connects and controls the bus 80 and various hardware and networks. The LCD 60 is a visual user interface for the user to check the state of the information processing apparatus. The operation unit 70 is a user interface such as a keyboard and a mouse for a user to input information to the information processing apparatus. Since the document management server 4 is operated as a server, user interfaces such as the LCD 60 and the operation unit 70 can be omitted.

  In such a hardware configuration, a program stored in a storage medium such as the ROM 30, the HDD 40, or an optical disk (not shown) is read into the RAM 20, and operates according to the control of the CPU 10, thereby configuring a software control unit. A functional block that realizes the functions of the presentation control terminal 2, the client terminal 3, and the document management server 4 according to the present embodiment is configured by a combination of the software control unit configured as described above and hardware.

  Next, the functional configuration of the document management apparatus 1 according to the present embodiment will be described with reference to FIG. FIG. 3 is a block diagram showing a functional configuration of the presentation control terminal 2 according to the present embodiment. As shown in FIG. 3, the presentation control terminal 2 according to the present embodiment includes a controller 100, a network I / F 110, and a device I / F 120 in addition to the LCD 60 and the operation unit 70 described in FIG. The controller 100 includes a network control unit 101, an operation control unit 102, a display control unit 103, a device control unit 104, and a presentation control unit 105.

  The network I / F 110 is an interface for the presentation control terminal 2 to communicate with other devices via the network, and an interface such as Ethernet (registered trademark) is used. The device I / F 120 is an interface for connecting another device to the presentation control terminal 2, and uses an USB (Universal Serial Bus) or an interface for transferring image information. In the present embodiment, the projector 1 is connected to the device I / F 120. The network I / F 110 and the device I / F 120 are realized by the I / F 50 shown in FIG.

  The controller 100 is configured by a combination of software and hardware. Specifically, a program stored in a nonvolatile storage medium such as the ROM 30 and the nonvolatile memory and the HDD 40 and the optical disk is loaded into a volatile memory (hereinafter referred to as a memory) such as the RAM 20, and the CPU 10 performs an operation according to the program. The controller 100 is configured by a software control unit configured by performing and hardware such as an integrated circuit. The controller 100 is a control unit that controls the entire presentation control terminal 2. The network control unit 101 acquires information input via the network I / F 110 and transmits information to other devices via the network I / F 110.

  The operation control unit 102 acquires an operation signal from the presenter for the operation unit 70 and inputs the acquired signal to a module operating in the presentation control terminal 2 such as the presentation control unit 105. The display control unit 103 causes the LCD 60 to display the state of the presentation control terminal 2 such as a GUI (Graphical User Interface) of the presentation control unit 105.

  The presentation control unit 105 is a module responsible for a presentation-related function in the presentation control terminal 2, and is configured by the CPU 10 performing calculations according to a dedicated application program installed in the presentation control terminal 2. The functions of the presentation control unit 105 include a function of generating and outputting display information for displaying a document based on the information of the document, a function of managing the progress of the presentation according to the operation of the presenter, and the progress of the presentation Accordingly, there is a function of managing the display of the material on each client terminal 3. Details will be described later.

  FIG. 4 is a diagram illustrating an example of a presentation progress table stored by the presentation control unit 105 for managing the progress of a presentation. In the presentation progress table shown in FIG. 4, the progress of the presentation (hereinafter referred to as the presentation progress) is shown in eight stages from “1” to “7” and “END” indicating the end. This presentation progress degree corresponds to the number of pages of the material displayed by the projector 1. That is, the materials displayed on the projector 1 in the presentation managed by the presentation progress table shown in FIG.

  As shown in FIG. 7, the number of pages of the material disclosed for the first time in each stage is associated with each stage of presentation progress. For example, in the progress “1”, pages “1” to “3” of “Document 1” are disclosed, and in the progress “4”, “Page 4” and “Document 2” of “Document 1” are disclosed. The “1” page is disclosed. In other words, the presentation progress table is a progress degree table in which information of materials to be distributed according to the progress degree of the conference is specified. Managing the degree of presentation progress using such a presentation progress table is one of the gist according to the present embodiment. In the example of FIG. 4, pages “2” to “4” of “Material 2” are associated with “END”. This means that it can be viewed after the presentation ends.

  Next, the functional configuration of the client terminal 3 will be described with reference to FIG. FIG. 5 is a block diagram showing a functional configuration of the client terminal 3 according to the present embodiment. As shown in FIG. 5, the client terminal 3 according to the present embodiment includes a controller 200 and a network I / F 210 in addition to the LCD 60 and the operation unit 70 described in FIG. 2. The controller 200 includes a network control unit 201, an operation control unit 202, a display control unit 203, and a browser application 204.

  The network I / F 210 is an interface for the client terminal 3 to communicate with other devices via the network, and an interface such as Ethernet (registered trademark) is used. The network I / F 210 is realized by the I / F 50 shown in FIG. Similar to the controller 100 of the presentation control terminal 2, the controller 200 is configured by a combination of software and hardware. The controller 200 is a control unit that controls the entire client terminal 3. The network control unit 201 acquires information input via the network I / F 210 and transmits information to other devices via the network I / F 210.

  The operation control unit 202 acquires a signal of an operation performed by a conference participant on the operation unit 70 and inputs the signal to a module that operates on the client terminal 3 such as the browser application 204. The display control unit 303 causes the LCD 60 to display the state of the client terminal 3 such as a GUI (Graphical User Interface) of the browser application 204.

  The browser application 204 is a module that provides a GUI for displaying materials used for presentation, the progress of the presentation, and the like on the client terminal 3, and is calculated by the CPU 10 according to a dedicated application program installed on the client terminal 3. It is comprised by doing. The browser application 204 can also be configured by a general software application such as a web browser and information distributed from the presentation control terminal 2 via a web protocol for display by the web browser.

  In such a conference system including the presentation control terminal 2 and the client terminal 3, the gist of the present embodiment is to limit the display of materials on the client terminal 3 in accordance with the management of the presentation progress by the presentation control terminal 2. is there. Details will be described below.

  FIG. 6 is a sequence diagram showing the operation of the conference system according to the present embodiment. As shown in FIG. 6, first, the client terminal 3 requests the conference control registration via the network to the presentation control terminal 2 according to the operation by the conference participant (S601). In the process of S601, for example, the conference participant inputs the conference ID notified in advance to the GUI of the browser application 204 in the client terminal 3, thereby specifying the conference ID input by the browser application 204 and controlling the presentation. It is executed by accessing the terminal 2. That is, the browser application 204 functions as a conference participation registration processing unit.

  Upon receiving the conference participation registration request from the client terminal 3, the presentation control terminal 2 stores the IP address of the access source client terminal 3 in the storage medium as the terminal of the conference participant specified by the specified conference ID. Thus, the conference registration is performed (S602). When the conference participation registration of the client terminal 3 of the conference participant is completed, the presentation control unit 105 transmits the presentation progress table and the material information to the client terminal 3 registered as the conference participant by the processing of S601 and S602 ( S603). That is, the presentation control unit 105 functions as a progress output unit.

  In step S <b> 603, the presentation control unit 105 is a presentation progress table as described with reference to FIG. 4, which is a conference progress table specified by the conference ID, and “document 1”, “document 2”, As in “Document 3”, information on the material registered as the material of the presentation is transmitted. Here, in S603, the presentation control unit 105 encrypts and transmits the information of the material.

  In the client terminal 3 that has received the presentation progress table and material information from the presentation control terminal 2, the browser application 204 stores the received presentation progress table and encrypted material information in the storage medium (S604). After that, when the presenter starts the conference by operating the GUI of the presentation control unit 105, the presentation control unit 105 performs the encrypted information together with the number of pages of the material displayed by the projector 1 as the presentation progresses. The decryption key for decrypting is notified (S605). In the present embodiment, the number of pages of the material displayed by the projector 1 is used as progress information indicating the progress of the presentation.

  In the client terminal 3 that has received the presentation progress level and the decryption key, the browser application 204 has also received the page of the material associated with the received progress level based on the presentation progress level table stored in the storage medium. Obtained by decrypting using the decryption key and updates the GUI (S606). That is, the browser application 204 functions as a progress degree acquisition unit and a material information acquisition unit. When the browser application 204 decrypts the material that can be displayed according to the degree of progress using the received decryption key, the browser application 204 discards the decryption key. Thereby, it is possible to prevent the decryption key from being used without permission by the conference participant and the information of the material before disclosure is decrypted.

  The presentation control terminal 2 and the client terminal 3 repeat the progress notification in S605, the decryption key notification, and the processing in S606 according to the progress of the presentation. Thereby, the conference proceeds. At this time, each time the presentation proceeds, a decryption key for the material information is transmitted from the presentation control terminal 2 to the client terminal 3. Therefore, as shown in FIG. 4, the conference participants can browse only the materials set according to the degree of progress of the presentation, information disclosure is performed according to the presenter's intention, and the presenter's intention It is possible to give the participants the same impression as the meeting.

  An example of the GUI of the browser application 703 displayed by the process of S606 is shown in FIG. As shown in FIG. 7, the GUI of the browser application 204 according to the present embodiment includes a status display unit 701, a material display unit 702, and a material display unit 703. The status display unit 701 is a display unit that indicates the progress of the presentation, the material that can be displayed, and the material that is currently displayed. That is, the browser application 204 functions as a material display processing unit.

  In the status display unit 701, the numbers displayed in the spaces under “Document 1”, “Document 2”, and “Document 3” are information indicating materials that can be displayed according to the current degree of progress. The example of FIG. 7 shows the case where the degree of progress is “5” in the presentation progress table of FIG. 4, and “Document 1” can display up to 5 pages and “Document 2” can display up to 1 page. ing.

  As described above, the degree of progress of the presentation is the same as the number of pages of the material 1. Accordingly, as shown in FIG. 7, the current presentation progress is indicated by a white circle next to the number of pages of “Material 1”. In FIG. 7, a white circle is added next to “5”. In addition, the currently displayed material is indicated by a black circle next to the number of pages. Since the GUI of the browser application 204 according to the present embodiment includes two display spaces of the material display units 702 and 703, two black circles are also attached as shown in FIG. The material display portions 702 and 703 are display spaces for displaying material information. Such a display can help the conference participants understand the conference status and improve the convenience of the conference participants.

  Next, the operation of the browser application 204 in S606 will be described using the flowchart of FIG. As shown in FIG. 8, when the browser application 204 acquires the progress and the decryption key from the presentation control terminal 2 (S801), the browser application 204 refers to the presentation progress table stored in S604 based on the acquired progress and newly It is confirmed whether there is a document to be disclosed (S802).

  If there is a newly disclosed material as a result of the determination in S802 (S802 / YES), the browser application 204 decrypts the newly disclosed material and updates the GUI (S803). On the other hand, if there is no material to be newly disclosed (S802 / NO), the browser application 204 only updates the GUI (S804). Note that, in both the processes of S803 and S804, the browser application 204 discards the received decryption key.

  The browser application 204 repeats the processing from S801 until the presentation is completed (S805 / NO). When the presentation is completed (S805 / YES), the decrypted material information is stored in the storage medium (S806), and the processing is terminated. To do. Thereby, the conference participants can freely use the distributed material information after the presentation is completed.

  As described above, in the conference system according to the present embodiment, the presentation progress level is managed by the presentation control terminal 2, and the client terminal 3 manages the material according to the progress level managed by the presentation control terminal 2. The display is lifted. Therefore, information is disclosed according to the presenter's intention without pre-reading the material against the presenter's intention, and the impression given to the conference participant by the presentation is in line with the presenter's intention. Can be.

  Here, in the above embodiment, the presentation progress table and the information on the material are stored in the client terminal 3 in advance before the start of the conference, and the client terminal 3 responds to the progress notified from the presentation control terminal 2. The case where the displayable material is determined with reference to the presentation progress table has been described as an example. Not only this but the mode which distributes the information on the material displayed whenever a presentation progresses is also considered. Such an example will be described below.

  FIG. 9 is a sequence diagram showing the operation of the system in the case of distributing material information that can be displayed each time a presentation progresses. As shown in FIG. 9, the processing in S901 and S902 is executed in the same manner as S601 and S602 in FIG. When the conference participation registration is completed and the presenter operates the GUI of the presentation control unit 105 to start the conference, the presentation control unit 105 refers to the presentation progress table according to the progress of the conference, and the display is lifted. After acquiring the information of the document, the information is transmitted to the client terminal 3 registered for conference participation together with the degree of progress (S903). That is, in the example of FIG. 9, the presentation control unit 105 functions as a material information acquisition unit. The presentation control unit 105 notifies only the degree of progress when there is no material whose display is prohibited.

  In the client terminal 3 that has received the material information from the presentation control terminal 2, the browser application 204 displays the received material on the GUI and updates the GUI status display unit 701 (S904). By such processing, the operation of the system in the case of distributing material information that can be displayed each time the presentation progresses is completed. As in the case of FIG. 6, the presentation control terminal 2 and the client terminal 3 repeat the transmission of the material information in S903, the progress notification, and the processing in S904 according to the progress of the presentation.

  Next, the operation of the presentation control unit 105 after the conference is started in S903 will be described with reference to the flowchart of FIG. As shown in FIG. 10, when the conference is started and progressed by the operation of the presenter (S1001), the presentation control unit 105 refers to the presentation progress table according to the progress of the conference, and there is a material to be newly disclosed. Whether or not (S1002). As a result of the confirmation in S1002, when there is a newly disclosed material (S1002 / YES), the presentation control unit 105 acquires information on the newly disclosed material and transmits it to the client terminal 3 registered for conference participation ( S1003).

  On the other hand, if there is no material to be newly disclosed (S1002 / NO), the presentation control unit 105 notifies the client terminal 3 of the degree of progress of the progressed presentation (S1004). The presentation control unit 105 repeats the processing from S1001 until the presentation is finished (S1005 / NO), and when the presentation is finished (S1005 / YES), the processing is finished. At this time, if there is a material to be distributed after the presentation is completed, such as a material associated with “END” in FIG. 4, information on the material is transmitted. Such processing makes it possible to minimize the processing required for the client terminal 3.

  Such an aspect is particularly effective when the processing capability of the client terminal 3 is not high, such as a smartphone or a mobile phone terminal. On the other hand, in the case of the aspect described in FIG. 6, since only the decryption key and the progress information are exchanged via the network during the presentation, it is possible to reduce the network load during the presentation. There is also an effect of improving the real-time nature of the presentation as an effect arising therefrom. In this case, as described above, since the information of the material transmitted in advance is encrypted, it is possible to effectively prevent the conference participant from prefetching the content of the material.

  In the above embodiment, the number of materials that can be displayed on the client terminal 3 increases according to the degree of progress, but by forcibly displaying specific materials each time the presentation progresses, It is also possible to make the impression as intended by the presenter. In the case of the mode shown in FIG. 9, since the information of the material is transmitted each time, the browser application 204 can be realized by always displaying the newly received material.

  In the case of the mode of FIG. 6, for example, by using a material display designation table as shown in FIG. 11 in addition to the presentation progress table, a specific material can be forcibly displayed each time the presentation progresses. Is possible. In other words, when the browser application 204 receives a notification of the degree of progress from the presentation control terminal 2, in addition to decoding the material information received in advance and updating the GUI status display unit 701, the presentation progress forcible display shown in FIG. 11 is displayed. By referring to the table, the page of the material determined according to the degree of progress is forcibly displayed on the GUI regardless of the operation of the conference participant. Thus, it is possible to forcibly display a specific material every time the presentation progresses.

  In the example of FIG. 9, the case where the information of the material stored in the presentation control terminal 2 is distributed according to the progress of the presentation has been described as an example. However, the material information may be stored in the document management server 4. Such a case will be described with reference to FIG.

  FIG. 12 is a sequence diagram showing the operation of the system when the information of the material is stored in the document management server 3. As shown in FIG. 12, the processing in S1201 and S1202 is executed in the same manner as S601 and S602 in FIG. When the conference registration is completed and the presenter starts the conference by operating the GUI of the presentation control unit 105, the presentation control unit 105 refers to the presentation progress table according to the progress of the conference, and the material whose display is banned The URL (Uniform Resource Locator) for accessing and acquiring the URL is transmitted to the client terminal 3 registered for conference participation together with the progress (S1203). The presentation control unit 105 notifies only the degree of progress when there is no material whose display is prohibited.

  In the client terminal 3 that has received the URL of the material information from the presentation control terminal 2, the browser application 204 accesses the document management server 3 according to the received URL and acquires the material information (S1204). The browser application 204 that has acquired the document information displays the acquired document on the GUI and updates the GUI status display unit 701 (S1205). By such processing, the operation of the system when the information of the material is stored in the document management server 3 is completed. As in the case of FIG. 6, the presentation control terminal 2 and the client terminal 3 repeat the transmission of the URL in S1203, the progress notification, and the processing in S1204 and S1205 according to the progress of the presentation.

  The example of FIG. 12 is an example in which the presentation control terminal 2 notifies the client terminal 3 of the URL in accordance with the progress, and the client terminal 3 acquires the material information from the document management server 4. A mode is also possible in which a command is transmitted to the document management server 4 as it progresses, and the document management server 4 transmits information on the material that can be disclosed to the client terminal 3 registered for conference participation in accordance with the command. is there.

  Further, the embodiment as shown in FIG. 12 can be applied to the examples of FIGS. That is, according to the conference participation, a presentation progress table and a table indicating the URL for each material as shown in FIG. 13 (hereinafter referred to as a material URL table) are stored in the client terminal 3, and the browser application of the client terminal 3 is stored. However, the material information may be acquired from the document management table 4 by referring to the material URL table according to the progress of the conference.

  Further, in the above embodiment, the degree of progress and information of materials that can be disclosed are transmitted according to the progress of the conference, and the information is accumulated on the client terminal 3 side. For this reason, the client terminal 3 of the conference participant who joined the conference from the middle cannot determine the progress of the conference or information on the material that can be disclosed. Such a problem can be solved by the presentation control terminal 3 generating disclosure list information as shown in FIG. 14 according to the progress of the conference.

  The disclosure list information shown in FIG. 13 is information in which “presentation progress” indicating the current presentation progress level and the number of pages of the material that can be disclosed for each material registered in the presentation are stored. It is. The example of FIG. 14 shows information when the degree of progress is “4” in the presentation progress table shown in FIG. Since such disclosure list information is stored in the presentation control terminal 3 or the document management server 4, the browser application 204 of the client terminal 3 that has joined the conference from the middle first starts from the presentation control terminal 3 or the document management server 4. It is possible to acquire the disclosure list information and configure the same display as the GUI of the browser application 204 in the other client terminals 3 already participating in the conference.

  In the above embodiment, the projector 1 is a device that performs only the function of projecting display information input from the presentation control terminal 2. However, the function of the presentation control terminal 2 can be included in the projector 1. In this case, a display interface such as the LCD 60 can be integrated with the projection function of the projector 1.

  Examples of such a projector 1 include an information processing function that can operate an HTML (Hyper Text Markup Language) browser application and a general image display application, and display information in HTML format or general It may be possible to acquire information of an image or document, generate display information, perform projection, and have a function of communicating with the client terminal 3 and the document management server 4 via a network.

DESCRIPTION OF SYMBOLS 1 Projector 2 Presentation control terminal 3 Client terminal 4 Document management server 10 CPU
20 RAM
30 ROM
40 HDD
50 I / F
60 LCD
70 Operation Unit 80 Bus 100 Controller 101 Network Control Unit 102 Operation Control Unit 103 Display Control Unit 104 Device Control Unit 105 Presentation Control Unit 110 Network I / F
120 Device I / F
200 Controller 201 Network Control Unit 202 Operation Control Unit 203 Display Control Unit 204 Browser Application 210 Network I / F

JP 2002-49595 A

Claims (7)

A conference system including an information processing device having a function of displaying information of materials distributed in a conference and a control device for controlling the progress of the conference,
The controller is
A display control unit for displaying the material on a control-side display device connected to the control device;
A progress table in which information of materials that can be displayed in the information processing device is specified in accordance with the degree of progress of a meeting corresponding to the materials displayed on the control-side display device, and the encrypted information on the materials are stored in advance. An information transmission unit for transmitting to the information processing apparatus;
According to the progress information indicating the degree of progress of the meeting corresponding to the material displayed on the control-side display device, and the information of the material transmitted in advance to the information processing device according to the progress indicated by the progress information. among them, a progress degree transmission unit that transmits the decryption key for decrypting the document which can be displayed in the information processing apparatus, to the information processing apparatus,
The information processing apparatus includes:
A material information storage unit for acquiring information of the encrypted material and storing the information in a storage medium;
A progress table acquisition unit that acquires the progress table and stores it in a storage medium;
A progress acquisition unit that acquires the progress information and the decryption key from the control device;
Based on the progress table, a material information acquisition unit that acquires and acquires information on the material specified according to the acquired progress information using a decryption key acquired together with the progress information;
A conference system comprising: a material display processing unit for displaying information on the acquired material on a display device.   The material information acquisition unit decrypts the information of the material specified according to the acquired progress information using the decryption key acquired together with the progress information, and then discards the decryption key. The conference system according to claim 1. The information processing apparatus includes a conference participation registration processing unit that performs a participation registration process for a conference by accessing a control device that controls the progress of the conference,
The conference system according to claim 1, wherein the information transmission unit transmits the progress table and the encrypted material information to the information processing apparatus in accordance with the participation registration process. The information transmission unit transmits information on different materials to the information processing device in addition to the materials displayed on the control-side display device,
4. The conference system according to claim 1, wherein the material display processing unit displays information displayed on the control-side display device and information on the different materials on a display device. 5. The material display processing unit causes the display device to display information indicating materials that can be displayed in the information processing device on the display device in addition to the material displayed on the control-side display device. The conference system according to any one of claims 1 to 4. The information transmitting unit includes a material display designation table in which information on a material to be forcibly displayed on the information processing device is specified according to a degree of progress of a meeting corresponding to the material displayed on the control-side display device. Sent to the processing unit,
6. The material display processing unit forcibly causes a display device to display the material specified in the material display designation table in accordance with the acquired progress information. The conference system according to item 1. A material display method executed in a conference system including a controller for controlling the progress of the information processing apparatus and meeting with that displays the information materials to be distributed in the conference function,
Displaying the material on a control-side display device connected to the control device;
A progress table in which information of materials that can be displayed in the information processing device is specified in accordance with the degree of progress of a meeting corresponding to the materials displayed on the control-side display device, and the encrypted information on the materials are stored in advance. Transmitted from the control device to the information processing device,
The encrypted information of the material is acquired by the information processing apparatus and stored in a storage medium,
According to the progress information indicating the degree of progress of the meeting corresponding to the material displayed on the control-side display device, and the information of the material transmitted in advance to the information processing device according to the progress indicated by the progress information. among them, a decoding key for decoding the article that can be displayed in the information processing apparatus, and transmitted from the control device to the information processing apparatus,
The progress table transmitted from the control device is acquired in the information processing device and stored in a storage medium;
The progress information and the decryption key transmitted from the control device are acquired in the information processing device,
Based on the progress table, the information of the material specified according to the acquired progress information is decrypted and acquired using the decryption key acquired together with the progress information in the information processing apparatus,
A material display method, comprising: displaying information on the acquired material on a display device connected to the information processing device.

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