JP5948764B2 - Screen sharing apparatus, screen sharing method, and program - Google Patents

Description

  In the present invention, when the first screen based on a predetermined task is displayed on the display unit on the own screen sharing device side, the second screen corresponding to the first screen is displayed on the display unit on the partner screen sharing device side. The present invention relates to an invention for sharing a screen by displaying a screen.

  In recent years, in meetings and meetings, the same screen as the file screen displayed by the presenter on his / her information processing terminal (screen sharing device) is displayed on the viewer's information processing terminal (screen sharing device). By doing so, it became possible to perform so-called screen sharing (Patent Document 1). As a screen sharing technique, VNC (Virtual Network Computing) is generally known. By sharing the screen in this way, even if it is difficult for the presenter to explain with words alone, the viewer can be visually followed. It became easier to convey.

  However, the viewer's screen sharing device does not acquire image data related to the file screen displayed on the explainer's screen sharing device, but is simply displayed on the explainer's screen sharing device. The file screen is only displayed on the viewer's screen sharing device. Therefore, when the viewer wants to acquire image data related to the file screen owned by the presenter, he / she needs to request the presenter and provide it by e-mail or the like.

  When the explainer is provided with image data, the viewer must tell the explainer the file name, page number, etc. of the image data to be acquired. It will hang.

  On the other hand, in order to transmit the requested image data to the viewer's screen sharing device, the presenter shares the presenter's screen based on the file name, page number, etc. of the image data received from the viewer. Since it is necessary to search for image data while taking into account the folder structure (directory structure) from the apparatus, it also takes time for the presenter. In particular, when the image data is requested by the viewer during the explanation by the presenter, the explanation must be interrupted, the requested image data must be found and transmitted to the viewer. , The efficiency of the explanation becomes worse.

  As described above, transferring image data related to a file screen that is shared between the self-side as the presenter and the other-side as the viewer has a problem that it takes time for both. Arise.

According to the first aspect of the present invention, when the first screen based on a predetermined task is displayed on the display unit on the own screen sharing device side, the display unit on the partner screen sharing device side displays the first screen. A screen sharing apparatus that performs screen sharing by displaying a corresponding second screen, the storage unit storing image data relating to the first screen, and the partner screen sharing apparatus from the partner screen sharing apparatus Receiving means for receiving designated position information indicating a designated position in the display area of the display means on the screen sharing apparatus side, and the designated position related to the received designated position information corresponds to the second screen. Determining means for determining whether or not the specified position is included in the display area of the first screen; and if the specified position is determined to be included in the display area of the first screen, the first screen Image data relating to Reading means for out look, to the screen sharing apparatus of the other party, a screen sharing apparatus characterized by having a transmission means for transmitting the image data of the first screen the read.

  As described above, according to the present invention, in the self-screen requesting device, the designated position designated on the partner screen sharing device side corresponds to the second screen displayed on the partner screen sharing device side. It is determined whether it is included in the display area of the first screen on the own screen sharing apparatus side. If it is included, the own screen requesting device transmits the image data relating to the first screen to the partner screen sharing device. As a result, the other side does not need to bother to send the image data file name etc. to the self side, and the self side does not need to find out the image data requested by the other side. There is an effect that it is possible to save the time and trouble of the other party.

FIG. 1 is a schematic diagram of a screen sharing system according to an embodiment of the present invention. FIG. 2 is a hardware configuration diagram of the presenter terminal, the viewer terminal, the file sharing system, the program providing system, and the maintenance system according to the present embodiment. FIG. 3 is a functional block diagram of the presenter terminal and the viewer terminal according to the present embodiment. FIG. 4 is a conceptual diagram of a provision management table according to the present embodiment. FIG. 5 is a conceptual diagram of task list data according to the present embodiment. FIG. 6 is a sequence diagram showing a screen sharing method according to the present embodiment. FIG. 7 is a diagram showing a screen displayed on the display of the presenter terminal according to the present embodiment. FIG. 8 is a diagram showing a screen displayed on the display of the viewer terminal according to the present embodiment. It is a conceptual diagram which shows a certificate authentication management table. FIG. 9 is a diagram showing a screen displayed on the display of the presenter terminal according to the present embodiment. FIG. 10 is a diagram showing a screen displayed on the display of the presenter terminal according to the present embodiment. FIG. 11 is a flowchart showing the selection possibility determination process according to the present embodiment. FIG. 12 is a diagram showing a screen displayed on the display of the viewer terminal according to the present embodiment. FIG. 13 is a diagram showing a screen displayed on the display of the viewer terminal according to the present embodiment. FIG. 14 is a diagram showing a screen displayed on the display of the viewer terminal according to the present embodiment. FIG. 15 is a diagram showing a screen displayed on the display of the presenter terminal according to the present embodiment. FIG. 16 is a diagram showing a screen displayed on the display of the viewer terminal according to the present embodiment. FIG. 17 is a sequence diagram showing a part of the screen sharing method as a supplement to the present embodiment. FIG. 18 is a sequence diagram showing a part of the screen sharing method as a supplement to the present embodiment.

Embodiment
Hereinafter, an embodiment of the present invention will be described with reference to FIGS.

<< Overall Configuration of Embodiment >>
FIG. 1 is a schematic diagram of a screen sharing system according to an embodiment of the present invention. The screen sharing system shown in FIG. 1 includes an explainer terminal 1 as an example of a self-side screen sharing apparatus, and a viewer terminal (3 ₁ , 3 ₂ ,... As an example of a plurality of counterpart screen sharing apparatuses. , 3 _N ), a file sharing system 5, a program providing system 9, and a maintenance system 10, which are communicably connected via a communication network 2 such as the Internet or a LAN (Local Area Network). . Note that the communication network 2 may include a place where wireless communication such as WiFi (Wireless Fidelity) or Bluetooth (registered trademark) is performed in addition to wired communication.

The explainer terminal 1 is a computer used by the explainer A who explains at a meeting or a meeting, and the viewer terminals (3 ₁ , 3 ₂ ,..., 3 _N ) are the viewers (B ₁ , B ₂ ,..., B _N ). In the following description, when the generic names of the viewer terminals (3 ₁ , 3 ₂ ,..., 3 _N ) are described, “viewer terminal 3” is used and the viewers (B ₁ , B ₂ ,. _In the case of explaining the generic name of _N ), “viewer B” is used. Further, in the example shown in FIG. 1, there is one explainer A and one explainer terminal, but this is only described as one person and one for convenience of explanation, There may be a plurality of explainers and a plurality of explainer terminals. On the other hand, there may be one viewer B and one viewer terminal 3.

  Further, the file sharing system 5 accumulates the image data sent from the explainer terminal 1 and transmits the image data to the viewer terminal 3, so that the electronic file related to the image data is transmitted to the viewer B. It is a computer that can be shared. The program providing system is a computer for providing a program for causing the explainer terminal 1, the viewer terminal 3, the file sharing system 5, and the maintenance system 10 to execute functions via the communication network 2. .

  The “image data” of the present invention includes document data created by word processing software, table data created by spreadsheet software, image data created by presentation software, and JPEG (Joint Photographic Experts Group). , TIFF (Tagged Image File Format), and GIF (Graphic Interchange Format) image data.

  The maintenance system 10 is a computer for maintaining, managing, or maintaining at least one of the presenter terminal 1, the viewer terminal 3, the file sharing system 5, and the program providing system 9. For example, when the maintenance system 10 is installed in the country and the explainer terminal 1, the viewer terminal 3, the file sharing system 5, or the program providing system 9 is installed outside the country, the maintenance system 10 is connected via the communication network 2. Then, maintenance such as maintenance, management, and maintenance of at least one of the presenter terminal 1, the viewer terminal 3, the file sharing system 5, and the program providing system 9 is performed remotely. Specifically, the maintenance system 10 includes the model number, serial number, sales destination, installation location, maintenance inspection, or failure history of the explainer terminal 1, the viewer terminal 3, the file sharing system 5, or the program providing system 9. Perform maintenance such as management.

<< Hardware Configuration of Embodiment >>
Next, the hardware configuration of this embodiment will be described. FIG. 2 is a hardware configuration diagram of the presenter terminal, the viewer terminal, the file sharing system, the program providing system, and the maintenance system according to the present embodiment. The explainer terminal 1, the viewer terminal 3, the file sharing system 5, the program providing system 9, and the maintenance system 10 include displays 1d, 3d, 5d, 9d, and 10d, respectively. Note that the hardware configurations of the presenter terminal 1, the viewer terminal 3, the file sharing system 5, the program providing system 9, and the maintenance system 10 of this embodiment are the same, and therefore, here, the presenter terminal 1. The hardware configuration will be described, and description of other terminals or systems will be omitted.

  The explainer terminal 1 includes a CPU 201 that controls the operation of the entire explainer terminal 1, a ROM 202 that stores a program used to drive the CPU 201 such as an IPL, a RAM 203 that is used as a work area of the CPU 201, and various screen sharing programs. HD 204 for storing data, HDD (Hard Disk Drive) 205 for controlling reading or writing of various data to the HD 204 according to control of the CPU 201, media for controlling reading or writing (storage) of data to a recording medium 206 such as a flash memory A network I for transmitting data using the drive 207, a display I / F (Interface) 208 that displays various information such as a cursor, a menu, a window, characters, or an image on the display 1d, and the communication network 2. / F209, keyboard 211 having a plurality of keys for inputting characters, numerical values, various instructions, etc., mouse 212 for selecting and executing various instructions, selecting processing targets, moving the cursor, etc., removable recording medium As an example, a CD-ROM drive 214 that controls reading or writing of various data with respect to a CD-ROM (Compact Disc Read Only Memory) 213 and the above-described components are electrically connected as shown in FIG. A bus line 210 such as an address bus or a data bus for connection is provided.

  The display I / F is connected to a display 1d as an example of a display unit, and displays image data sent from the display I / F. The display 1d may be integrated with the presenter terminal 1 or may be a separate body. Similarly, the display 3d of the viewer terminal 3, the display 5d of the file sharing system 5, the display 9d of the program providing system 9, and the display 10d of the maintenance system 10 are the viewer terminal 3, the file sharing system 5, and the program providing system 9 respectively. , And the maintenance system 10 or a separate body.

  The program may be recorded in a computer-readable recording medium such as the recording medium 206 or the CD-ROM 213 and distributed as a file in an installable or executable format. The transmission management program may be stored in the ROM 202 instead of the HD 204. Other examples of the recording medium include CD-R (Compact Disc Recordable), DVD (Digital Versatile Disk), and Blu-ray Disc.

<< Functional Configuration of Embodiment >>
Next, the functional configuration of this embodiment will be described. FIG. 3 is a functional block diagram of the presenter terminal and the viewer terminal according to the present embodiment. In addition, since the functional configuration of the presenter terminal 1 and the viewer terminal 3 of the present embodiment is common, the functional configuration of the presenter terminal 1 will be described here, and the description of the viewer terminal 3 will be described. Omitted.

  The explainer terminal 1 includes a transmission / reception unit 11, an operation input reception unit 12, a screen sharing unit 13, a display control unit 14, a provision management unit 15, a determination unit 16, a reference unit 17, a file creation unit 18, and a storage / read processing unit. 19. Each of these units is a function realized by any one of the components shown in FIG. 2 or a functioning means that is operated by an instruction from the CPU 201 according to a program expanded from the HD 204 to the RAM 203. is there. Further, the explainer terminal 1 includes a storage unit 1000 constructed by the RAM 203 and the HD 204 shown in FIG.

(Offer management table)
In the storage unit 1000, a provision management DB 1001 configured by a provision management table as shown in FIG. In this provision management table, whether or not the presenter A provides the viewer B with the image data stored and owned in the presenter terminal 1 is managed. Specifically, in the provision management table, provision target information indicating whether or not image data can be provided to a person other than the explainer A and image data can be provided for each piece of identification information for identifying the image data. Provision destination information indicating the provision destination is associated and managed. Among these, the identification information of the image data is indicated by a directory (Directory) and an electronic file name of each image data in the storage unit 1000. In addition to the explainer A, the viewer B or the file sharing system 5 is included.

  Further, the provision target information specifically indicates whether each image data is image data provided from the presenter A to a person other than the presenter A in page units. In FIG. 4, “all” (all pages in one electronic file can be provided), “all” (all pages in one electronic file can be provided), “1, 2, 3” ( It is shown that only one, two and three pages in one electronic file can be provided), and “none” (none of the pages in one electronic file can be provided).

Further, the provision destination information specifically indicates a viewer ID for identifying the viewer B who can provide image data, or a system ID for identifying the file sharing system 5. In FIG. 4, from the top, “all” (can be provided to all viewers B and the file sharing system 5), “001, 002” (can only be provided to viewers B ₁ and B ₂ ), “001, 003; 101 "(Viewers B ₁ , B ₃ ; can be provided only to the three providing destinations of the file sharing system 5) and" none "(cannot be provided to any partner).

As described above, according to the provision management table shown in FIG. 4, for example, the image data related to the electronic file whose name is “additional sentence” can be provided only to the viewers B ₁ and B _{2 and} can be provided. It is managed that all pages are all pages.

(Task list)
The storage unit 1000 stores task list data as shown in FIG. In this task list, a task ID for identifying a task whose operation has started on the explainer terminal 1 is stored.

(Functional configuration of terminal)
Next, each functional configuration of the presenter terminal 1 will be described in detail with reference to FIG. In the following, in describing each functional configuration of the explainer terminal 1, among the components shown in FIG. 2, the main components for realizing each functional configuration of the explainer terminal 1 Explain the relationship. In addition, the file sharing system 5, the program providing system 9, and the maintenance system 10 each manage a computer server for sharing a known file, a server computer for distributing a program, equipment management, and the like as a single unit. Since this is a maintenance server computer, the description of these functions will be limited to the description of the processing or operation in the column of “Processing or Operation of Embodiment” described later.

  3 is realized by the command from the CPU 201 shown in FIG. 2 and the network I / F 209 shown in FIG. 3, and is connected to other terminals via the communication network 2. Sends and receives various data (or information) with the system. For example, the transmission / reception unit 11 receives from the viewer terminal 3 specified position information indicating the specified position (x, y) in the display area of the display 3d on the viewer terminal 3 side. Further, the transmission / reception unit 11 transmits image data related to the screen read from the storage unit 1000 to the viewer terminal 3 or the file sharing system 5. This image data transmission processing is executed by, for example, FTP (File Transfer Protocol).

  The operation input receiving unit 12 is realized by the command from the CPU 201 shown in FIG. 2 and the keyboard 211 and the mouse 212 shown in FIG.

  The screen sharing unit 13 is realized by a command from the CPU 201 shown in FIG. 2, and the same screen as the file screen displayed on the display 1 d of the explainer terminal 1 is displayed on the display 3 d of the viewer terminal 3 by the VNC technique. By displaying on the screen, so-called screen sharing is performed.

  The display control unit 14 is realized by a command from the CPU 201 shown in FIG. 2 and the display I / F 208 shown in FIG. 2, and performs control for displaying various images on the display 1d.

  The provision management unit 15 is realized by a command from the CPU 201 illustrated in FIG. 2, and is used when the explainer A manages each data in the provision management table illustrated in FIG. 4.

  The determination unit 16 is realized by a command from the CPU 201 illustrated in FIG. 2, and the specified position related to the specified position information received by the transmission / reception unit 11 corresponds to the file screen displayed on the viewer terminal 3 side. Then, it is determined whether it is included in the display area in the file screen displayed on the explainer terminal 1 side.

  The reference unit 17 is realized by a command from the CPU 201 illustrated in FIG. 2, and the specified position (x, y) is included in the display area of the screen on the viewer terminal 3 side by the determination unit 16. If it is determined, the corresponding provision target information is referred to by searching the provision management table (see FIG. 4) based on the identification information of the predetermined image data. If the determination unit 16 determines that the designated position (x, y) is included in the display area of the file screen on the viewer terminal 3 side, the reference unit 17 identifies predetermined image data. By searching the provision management table (see FIG. 4) based on the information, the corresponding provision destination information is referred to. The predetermined image data is image data related to the file screen on the explainer terminal 1 side corresponding to the file screen on the viewer terminal 3 side in which the designated position (x, y) is included in the display area. Note that the determination unit 16 may perform processing with the storage / read processing unit 19 without the reference unit 17 as illustrated in FIG. 3.

  The file creation unit 18 is realized by a command from the CPU 201 illustrated in FIG. 2, and when the image data is image data of a predetermined page that is a part of the electronic file, the designated position (x, y) is The image data of the page of the file screen on the viewer terminal 3 side included in the display area is created as an electronic file. For example, the file creation unit 18 creates an electronic file by converting a file screen currently displayed on the display 1d into an image image such as PNG (Portable Network Graphics).

  The storage / reading processing unit 19 is executed by the instruction from the CPU 201 shown in FIG. 2 and the instruction from the HDD 201 shown in FIG. 2 or realized by the instruction from the CPU 201, and stores various data in the storage unit 1000. Processing for reading various data stored in the unit 1000 is performed.

<< Processing or Operation of Embodiment >>
Next, processing or operation in the screen sharing system according to the present embodiment will be described with reference to FIGS. 6 and 14. Here, in the screen sharing state, an image related to the file screen (screen showing the second page of the explanatory text) displayed on the display 1d of the explainer terminal 1 from the explainer terminal 1 to the viewer terminal 3 A case where data is provided as electronic file data will be described. FIG. 6 is a sequence diagram showing a screen sharing method according to the present embodiment. 7, 9, 10, and 15 are diagrams showing screens displayed on the display of the explainer terminal. 8, FIG. 12 to FIG. 14 and FIG. 16 are diagrams showing screens displayed on the display of the viewer terminal.

  First, as illustrated in FIG. 6, the operation input receiving unit 12 of the explainer terminal 1 receives an operation for executing screen sharing from the explainer A and the operation input receiving unit 12 of the viewer terminal 3. By accepting an operation for executing screen sharing from the viewer B, each screen sharing unit 13 of the explainer terminal 1 and the viewer terminal 3 establishes a screen sharing state via the communication network 2 (Step S1). S1).

  As a result, a file screen (see FIG. 8) corresponding to the file screen (see FIG. 7) displayed on the display 1d of the presenter terminal 1 is displayed on the display 3d of the viewer terminal 3. Conversely, a screen (see FIG. 7) corresponding to the screen (see FIG. 8) displayed on the display 3d of the viewer terminal 3 is displayed on the display 1d of the explainer terminal 1. That is, as the corresponding screen, when the display 3d of the viewer terminal 3 and the display 1d of the explainer terminal 1 have the same display pixel number, the same screen is displayed, and when the display pixel number is different, the display is reduced. Alternatively, an enlarged screen is displayed. In FIG. 8, a file screen f1 (second screen) corresponding to each of the file screen F1 (an example of the first screen) and the file screen F2 (an example of the first other screen) shown in FIG. An example) and a file screen f2 (an example of a second other screen) are displayed. The file screens F1 and F2 are screens that are displayed based on the tasks started on the explainer terminal 1, respectively.

  Next, in the explainer terminal 1, when the operation input accepting unit 12 accepts the designation of whether or not to provide the image data from the explainer A, the providing management unit 15 stores in the providing management DB 1001 (see FIG. 4) ( 1) image data stored in the storage unit 1000 of the own explainer terminal 1; and (2) this image data can be provided to the viewer terminal 3 in page units or in file units including all pages. Information to be provided or not and (3) provision destination information indicating a provision destination that can provide this image data are associated with each other and managed (step S2).

  Here, a specific process for the explainer A to manage the provision target information will be described. When the explainer A places the cursor C1 on the file screen F1 (see FIG. 7) displayed on the display 1d of the explainer terminal 1 and right-clicks the mouse 212, the display control unit 14 is placed on the cursor. As shown in FIG. 9, a menu M1 for setting whether to provide image data is displayed on the file screen F1. In FIG. 9, each option of “File can be provided”, “Only the currently displayed page can be provided”, “File can be stored on the server”, and “Only the currently displayed page can be stored on the server” is displayed. ing.

  Among these, when the “file can be provided” option is selected by the presenter A, the electronic file data of the currently displayed page or all other pages is included based on the request of the viewer B. The data of the electronic file can be provided to the viewer B. Further, when the presenter A selects the option “provide only the currently displayed page”, only the currently displayed page is sent to the viewer B as data of one electronic file based on the request of the viewer B. Can be provided. In addition, when the “Available to store files on server” option is selected by Explainer A, the electronic file data of the currently displayed page or all other pages are included based on the request of Viewer B Data of one electronic file can be stored in the file sharing system 5. Furthermore, when the option “Only the currently displayed page can be stored in the server” is selected by the presenter A, only the currently displayed page is saved as one electronic file based on the request of the viewer B. It can be stored in the shared system 5.

  In addition, a check area is displayed on the left side of each option in the menu M1, and a check is displayed for an option selected by the explainer A with the mouse 212. In the case shown in FIG. 9, the option “file can be provided” is selected, and the process executed by this option becomes possible. As a result, the selection result of the options is reflected in the provision management table shown in FIG. Here, as shown in FIG. 4, in the electronic file having the file name “description”, it is managed that the provision target is all pages in the electronic file.

  Next, a specific process for the explainer A to manage the provision destination information will be described. As shown in FIG. 9, when the presenter A selects a desired option out of the four options, the display control unit 14 displays the ACL on the file screen F1 as shown in FIG. The (Access Control List) setting screen Fa is displayed.

  In this ACL setting screen Fa, a name display field Fa1 that displays the names of all the viewers B on the left side, and a search key input field Fa2 that accepts input of names to search for the names of the viewers B on the left side. On the right side, a providable partner display field Fa3 for displaying the designation of the viewer B who can provide the file screen F1 as the provision target is displayed. Also, between the name display field Fa1 and the suppliable partner display field Fa3, among the names displayed in the name display field Fa1, the name of the partner to whom the explainer A permits the provision of image data can be provided. When pressed to move to the field Fa3, an “permit” button Fa4 for determining a partner to whom image data is provided is displayed. Furthermore, below the “permitted” button Fa4, a “cancel” button Fa5 that is pressed to cancel the permission among the names that have been once moved to the available partner display column is displayed.

  Note that the movement of the name from the name display field Fa1 to the suppliable partner display field Fa3 is executed by pressing the “permit” button Fa4 after the name in the name display field Fa1 is selected by the instructor A. The The name is deleted from the available partner display field Fa3 by selecting the name in the available partner display field Fa3 by the explainer A and then pressing the “delete” button Fa5 to display the name. This is executed by returning to the column Fa1.

  Further, in the lower right of the ACL setting screen Fa, a “Save” button Fa6 that is pressed when the copy of the name is performed or the name is deleted and then the state is saved, the copy of the name and the name are displayed. Even if deletion is performed, a “cancel” button Fa7 that is pressed when the state is not saved is displayed.

  However, the menu corresponding to the menu M1 displayed on the display 1d of the explainer terminal 1 is not displayed on the display 3d of the viewer terminal 3. In addition, a screen corresponding to the ACL setting screen Fa displayed on the display 1 d of the presenter terminal 1 is not displayed on the display 3 d of the viewer terminal 3.

In the case shown in FIG. 10, among the plurality of viewers B, the partner presenter A admit to provide data of the electronic file is B _1's and (Polytechnic Hanako) B ₂ 's only (Ichiro Takahashi). As a result, the selection result is reflected in the provision management table shown in FIG. In FIG. 4, the electronic file data with the file name “additional sentence” is permitted to be provided to Riko Hanako with the viewer ID “001” as the partner and Ichiro Takahashi with the viewer ID “002” as the partner. It has been shown. Note that the management in step S2 may be performed before the screen sharing state is established in step S1.

Next, returning to FIG. 6, the operation input reception unit 12 of the viewer's terminal 3, in the display area of the display 3d, accepts the designation of a predetermined position (x, y) from a viewer B ₁ (step S3). Specifically, as shown in Figure 8, in a state where the display 3d of the viewer terminal 3 file screen f1, f2 are displayed, the viewer B ₁ is a file screen f2 currently displayed When only the image data of the page is to be acquired, the viewer B moves the cursor c1 to the display area of the file screen f1 with the mouse 212 and left-clicks the mouse 212. Thereby, the operation input reception part 12 receives designation | designated of the position of the cursor c1 in the display area of the display 3d. Then, the transmission / reception unit 11 of the viewer terminal 3 transmits position information indicating the two-dimensional position (x, y) of the cursor c1 in the display area of the display 3d to the explainer terminal 1 via the communication network 2. (Step S4). At this time, the viewer terminal 3 also transmits the viewer ID of the viewer B who has designated the predetermined position, and the IP address of the viewer terminal 3 that is the transmission source of the position information. Thereby, the transmitting / receiving unit 11 of the presenter terminal 1 receives the position information, the viewer ID, and the IP address.

Next, on the side of the explainer terminal 1, as shown in FIG. 12, an option for acquiring electronic file data is displayed at the position left-clicked in the display area of the display 3 d of the viewer terminal 3. Whether to display a menu m1 to be displayed or to display a menu m2 indicating a simple display in which an acquisition target and transmission (or accumulation) location of image data related to an electronic file cannot be selected as shown in FIG. A selectability determination process for determination is performed (step S5). In the menu m1 shown in Figure 12, is in a selectable state by the viewer B ₁ each choice in the character is highlighted in the "file acquisition" and "get only the current page" it has been shown, each choice of "accumulating files to the server," and "accumulated in the server only the current page" has been shown to be an unselectable state by the viewer B _1. In the menu m2 shown in FIG. 14, the characters “file acquisition”, “acquire only the currently displayed page”, “accumulate the file on the server”, and “accumulate only the currently displayed page on the server” are displayed. It is shown that it is only displayed and is not selectable.

  Next, step S5 will be described in detail below with reference to FIG.

  As shown in FIG. 11, the determination unit 16 of the presenter terminal 1 acquires task list data (see FIG. 5) from the storage unit 1000 via the storage / read processing unit 19 (step S5). -1). Then, the determination unit 16 sequentially acquires task IDs managed in the task list (step S5-2). Here, first, the first task ID “1234” is acquired.

Then, determination unit 16 specifies the position of the designated positional information received by the transceiver unit 11 (x, y) is described terminal 1 side of the file screen corresponding to the file screen f1 viewer terminal 3 ₁ side It is determined whether it is included in the display area of F1 (step S5-3). In step S5-3, when the determination unit 16 determines that the specified position is included in the display area of the file screen F1 (YES), the reference unit 17 determines that the specified position is in the display area. By referring to the provision management DB 5001 (see FIG. 4) based on the directory name of the image data relating to the included file screen F1, the viewer B who wishes to obtain the image data relating to the file screen F1 is requested. It is determined whether or not image data relating to the file screen F1 is to be provided (step S5-4). For example, when the viewer B ₁ with the viewer ID “001” wants to acquire the image data related to the file name “additional sentence”, the determination unit 16 refers to the provision management DB 5001 (see FIG. 4) and provides the provision target. There in all pages "all", provides destination for a viewer _{B 1} (viewer ID "001") and a viewer _{B 2} (viewer ID "002"), from the viewer _{B 1} 2 page of if there is a request for acquisition of image data, it is determined that providing image data to the viewer B _1.

  Next, when it is determined in step S5-4 that image data related to the file screen is to be provided (YES), the determination unit 16 is further requested for acquisition from the viewer B on the display 1d of the explainer terminal 1. It is determined whether the file screen F1 related to the image data is displayed in the foreground (step S5-5). In step S5-5, if the determination unit 16 determines that the file screen F1 related to the image data requested to be acquired from the viewer B is displayed in the foreground (YES), the display control unit 14 Displays the file screen F1 related to the image data requested to be acquired from the viewer B on the forefront (step S5-6). As a result, the file screen F1 that can provide image data is displayed in the foreground of the display 208, so that the viewer B can easily understand that the file screen F1 is related to image data that can be acquired. In the example shown in FIG. 7, since the file screen F1 is displayed on the foreground of the display 208, that is, no other file screen is displayed on the front of the file screen F1, step S5-5. Then, the process proceeds to “NO”.

Further, after the process of step S5-6 or when it is determined in step S5-3 that the designated position is not included in the display area of the file screen F1 (NO), in step S5-4 When it is determined that the image data related to the file screen F1 is not provided (NO), or the file screen related to the image data for which the display control unit 14 has requested acquisition from the viewer B in step S5-5 is the foreground. If it is determined (NO), the determination unit 16 refers to the data of the task list stored in the storage unit 1000 via the storage / read processing unit 19 and performs a task related to the image data requested to be acquired. Among these, it is determined whether or not there is a task that has not been processed in step S5-3 (step S5-7). In step S5-7, if the determination unit 16 determines that there is an undetermined task (YES), the process returns to step S5-2 to proceed with processing regarding the undetermined task. On the other hand, when the determination unit 16 determines in step S5-7 that there is no undetermined task (NO), the determination unit 16 determines whether the YES process in step S5-4 has been performed. it is, position information (x, y) image data to determine whether there according to the file screen that can be provided to the viewer terminal 3 ₁ which is the source of the (step S5-8). The determining unit 16, in step S5-8, if the determination unit 16 determines that there is image data that can be provided to the viewer terminal 3 ₁ is a request source of the image data (YES), the determination unit 16 determines that the viewer terminal 3 that is the request source of the image data can make a selection for requesting the image data on the viewer terminal 3 side (step S5-9).

Further, the reference unit 17 extracts the corresponding provision target information by searching the provision management table (see FIG. 4) based on the identification information of the image data determined to be available in step S5-4. Thus, the content of the menu m1 displayed on the display 3d of the viewer terminal 3 is determined (step S5-10). In FIG. 4, for example, when the file name is image data related to “additional sentence”, the target that can be provided is “all (all)” and the provider that can be provided is “viewer ID (001, 002)”. It has become. Therefore, the viewer terminal 3 ₁ displays 3d viewer B ₁ is a viewer ID "001" is used, two options of "file acquisition" and "get only the current page" characters Is displayed in a selectable manner, and two options of “accumulate the file on the server” and “accumulate only the currently displayed page on the server” are displayed in an unselectable manner.

  On the other hand, if the determination unit 16 does not determine in step S5-8 that there is image data that can be provided to the viewer terminal 3 that is the request source of the image data (NO), the determination unit 16 determines. The unit 16 determines that the viewer terminal 3 that is the request source of the image data cannot be selected for requesting the image data on the viewer terminal 3 side (step S5-11).

  By the way, if it is determined in step S5-4 that image data relating to the file screen based on the first task in the task list cannot be provided (NO), the process goes through YES in step S5-7 and step S5-2. For the file screen based on the next task in the task list, the processing from step S5-3 is performed. In the example shown in FIG. 8, the cursor c1 in step S3 is located not only in the file screen f1, but also in the display area of the file screen f2 displayed on the back of the file screen f1. Therefore, in step S5-3, it is determined that the designated position (x, y) is included in the display area of the file screen F2 corresponding to the file screen f2 (YES). If it is determined in step S5-4 that the image data related to the file screen F2 can be provided (YES), in step S5-5, as shown in FIG. It is determined that the file screen F1 is displayed on the forefront (YES). Thereby, in step S5-6, as shown in FIG. 15, the file screen F2 is displayed on the forefront. In addition, since the screen sharing state is established in step S1, the file screen f2 is displayed on the foreground on the display 3d of the viewer terminal 3 as shown in FIG. The menu m3 is displayed in S7.

On the other hand, as shown in FIG. 8, in the case of the position of the cursor c2 (x ′, y ′) instead of the position of the cursor c1 (x, y ′), the file displayed on the back of the file screen f1. Since it is not located in the display area of the screen f2, it is determined in step S5-3 that the designated position (x ′, y ′) is not included in the display area of the file screen F2 corresponding to the file screen f2. is (nO), the image data of the file screen F2, not provided to the viewer B _1.

Next, returning to FIG. 6, the processing after step S5 will be described. First, the transmitting / receiving unit 11 of the explainer terminal 1 transmits the designation result information according to step S4 and the IP address of the explainer terminal 1 to the viewer terminal 3 via the communication network 2 (step S6). Thus, the viewer terminal 3 _1, the transceiver 11 will receive the designation result information and IP address.

When the display of options is determined in step S5 (step S5-9), the designation result information includes selectable information indicating options that can be selected by the viewer B, and image data that can be acquired. Image specifying information (image data folder name, file name, and page number) for specifying the electronic file is included. With this selectable information, the viewer terminal 3 can select one of the options “file acquisition”, “acquire only the currently displayed page”, “accumulate the file on the server”, and “accumulate only the currently displayed page on the server”. Of these, the selectable option characters can be displayed in reverse so that they can be selected, and the non-selectable option characters can be displayed in reverse without being selected. Further, the viewer terminal 3, may be based on the image identification information contained in the specified result information to identify the image data of the file screen the viewer B ₁ is acquired request in step S3. In this embodiment, as shown in FIG. 9, the presenter A selects an option “file can be provided” in step S2, and “provides only the currently displayed page can be provided” and “file to server”. Since the options “Accumulate possible” and “Only the currently displayed page can be accumulated in the server” were not selected, the “File acquisition” and “Acquire only the currently displayed page” options can be selected as selectable information. It is shown that there is. Note that if the presenter A selects the option “provided to provide a file”, providing the currently displayed page is also included. Therefore, the viewer terminal 3 can acquire only the currently displayed page. This option is also selectable.

  On the other hand, when the determination unit 16 determines in step S5 that selection for requesting image data is impossible on the viewer terminal 3 side (step S5-11), Non-selectable information indicating that the user B cannot select an option, and image characteristic information for specifying an electronic file related to image data that cannot be acquired (folder name, file name, image data, And page number).

Next, when the display of options is determined in step S5 (step S5-9), the display control unit 14 of the viewer terminal 3 displays the figure on the file screen f1 of the display 3d of the viewer terminal 3. by displaying the menu m1 as shown in 12, prompting a user to select options to viewers B ₁ (step S7). In the present embodiment, based on the selectable information received in step S6, the menu m1 highlights and displays two choices of “file can be acquired” and “only the currently displayed page can be acquired”. It becomes possible.

  On the other hand, when the determination unit 16 determines in step S5 that selection for requesting image data is impossible on the viewer terminal 3 side (step S5-11), The display control unit 14 displays the menu m2 as shown in FIG. 14 on the file screen f1 of the display 3d of the viewer terminal 3, so that the viewer B can understand the choice characters even if he can understand the choice characters. Cannot be selected (step S7).

  Next, the process after step S8 in FIG. 6 will be described for the case where the viewer B can select an option on the menu m1.

First, as shown in FIG. 12, the operation input acceptance unit 12 of the viewer terminal 3 accepts selection of an option by the viewer B on the menu m1 (step S8). In the present embodiment, as shown in FIG. 12, two options of “file acquisition” and “acquire only the currently displayed page” are highlighted and can be selected by the viewer B ₁ . The viewer B ₁ has selected the option “acquire only the currently displayed page”.

  Next, the transmission / reception unit 11 of the viewer terminal 3 sends the file request information indicating the acquisition request of the electronic file data related to the option received by the operation input reception unit 12 and the IP address of the viewer terminal 3 to the communication network. 2 to the explainer terminal 1 (step S9). As a result, the explainer terminal 1 receives the file request information and the IP address by the transmission / reception unit 11.

  The file request information includes the image specifying information (image data folder name, file name, and page number) used in step S6 in order to specify the acquisition request target. If the viewer B selects the “file acquisition” option in FIG. 12, the image specifying information transmitted in step S9 includes the folder name and file name of the image data, and the page The number is not included.

Next, when the image specifying information indicates the folder name, file name, and page number of the image data, the file creation unit 18 of the explainer terminal 1 stores the information from the storage unit 1000 based on the image specifying information. The image data related to the corresponding page number is read out via the read processing unit 19 to create an electronic file (step S10). In the present embodiment, the viewer B ₁ makes an image data acquisition request for the page portion (second page) of the file screen F1 (see FIG. 9) corresponding to the file screen f1 (see FIG. 12). The file creation unit 18 creates an electronic file based only on the image data of the page portion (second page) of the file screen F1 (see FIG. 9).

  When the image specifying information includes the folder name and file name of the image data but does not include the page number, the file creation unit 18 of the explainer terminal 1 uses the storage unit 1000 based on the image specifying information. Thus, it is not necessary to newly create an electronic file by simply reading the image data relating to the corresponding electronic file via the storage / reading processing unit 19.

  Next, the transmitting / receiving unit 11 of the explainer terminal 1 sends the electronic file data created or read by the file creating unit 18 and the IP address of the explainer terminal 1 to the viewer terminal 3 via the communication network 2. Transmit (step S11). Thereby, in the viewer terminal 3, the data and the IP address of the electronic file are received by the transmission / reception unit 11.

  Next, the display control unit 14 of the viewer terminal 3 displays a dialog box screen d on the display 3d as shown in FIG. The user is prompted to specify a data storage location (memory address) (step S12). The dialog box screen d is a screen for allowing the viewer B to specify a location for storing the data of the electronic file received in step S11. Then, when the viewer B specifies a desired storage location, the storage / reading processing unit 19 stores the data of the electronic file in the specified storage location in the storage unit 1000 (step S13).

  In FIG. 11, the processing in steps S5-1, 2, and 7 may be omitted, the processing in step S5-5 may be omitted, or the processing in steps S5-6 and 7 may be omitted. Also good.

<< Main effects of this embodiment >>
As described above, according to the present embodiment, the designated position (x, y) in the display area of the display 3d designated by the viewer B on the viewer terminal 3 side is displayed on the file screen f1 on the viewer terminal 3 side. The explainer terminal 1 determines whether it is included in the display area of the corresponding file screen F1 on the side of the explainer terminal 1, and if it is included, the image data related to this file screen F1 is displayed. To the viewer terminal 3. Thus, when the viewer B wants to acquire image data related to the file screen F1 used by the presenter A for explanation, the viewer B does not need to bother inquiring to the presenter A, and simply the file screen f1 used for the explanation. If the display area is designated, desired image data is sent from the explainer terminal 1. Therefore, it is possible to save the trouble of both the explainer A and the viewer B with respect to the delivery of the image data.

  Further, according to the present embodiment, as shown in FIG. 9 and FIG. 10, the explainer A specifies the image data related to the file screen that can be provided to the outside in advance and specifies the other party, This specified state is managed by the provision management table shown in FIG. Thus, when the viewer B makes an acquisition request for image data related to the file screen, the explainer A may provide the image data related to the image file to the outside when the acquisition request is made. The explainer terminal 1 determines whether the viewer B is a person who can provide the viewer B. Therefore, the presenter A has an effect of being able to concentrate on the explanation using the file screen.

[Supplement 1 of embodiment]
Hereinafter, Supplement 1 of the embodiment of the present invention will be described with reference to FIG. FIG. 17 is a sequence diagram showing a part of the screen sharing processing method. Here, the modification of the process after step S9 shown by FIG. 6 of the said embodiment is shown.

  First, the transmission / reception unit 11 of the viewer terminal 3 transmits the file request information and the IP address of the viewer terminal 3 to the explainer terminal 1 via the communication network 2 (step S41). As a result, the explainer terminal 1 receives the file request information and the IP address by the transmission / reception unit 11. This file request information includes image specifying information (image data folder name, file name, and page number) for specifying the image data that is the subject of the acquisition request. Further, the file request information includes storage location information indicating a storage location where the image data that is the target of the acquisition request is to be stored in the explainer terminal 1. This storage location indicates the storage location of the file sharing system 5.

  Next, as described in the first embodiment, the file creation unit 18 of the presenter terminal 1 performs the same processing as step S10 in some cases (step S42). Then, the transmitting / receiving unit 11 of the explainer terminal 1 transmits the data of the electronic file and the IP address of the explainer terminal 1 in response to the request in step S41 to the file sharing system 5 via the communication network 2. Thereby, the file sharing system 5 stores the data of the electronic file sent in step S43 in its own HD 204.

  When the viewer B wants to acquire electronic file data from the file sharing system 5, the electronic file data is transferred from the transmission / reception unit 11 of the viewer terminal 3 to the file sharing system 5 via the communication network 2. The file transfer request information for requesting transfer to the terminal 3 and the IP address of the viewer terminal 3 are transmitted (step S45). Thereby, in the viewer terminal 3, the transmission / reception unit 11 receives the file transfer request information and the IP address. The file transfer request information includes image specifying information (image data folder name, file name, and page number) for specifying the image data that is the target of the transfer request. As a result, the transmission / reception unit 11 of the file sharing system 5 transmits the electronic file data and the IP address of the file sharing system 5 in response to the transfer request in step S45 to the viewer terminal 3 via the communication network 2 (step S45). S46).

  As described above, according to the present embodiment, the screen sharing state is established between the explainer terminal 1 and the viewer terminal 3, and the file sharing system 5 mediates transmission / reception of electronic folder data. To do. Thereby, there exists an effect that the processing load of the presenter terminal 1 can be reduced.

[Supplement 2 of embodiment]
Hereinafter, Supplement 2 of the embodiment of the present invention will be described with reference to FIG. FIG. 18 is a sequence diagram showing a part of the screen sharing processing method. Here, the modification of the process of step S1 shown by FIG. 6 of the said embodiment is shown.

  As shown in FIG. 18, instead of step S1, the screen sharing state is established between the explainer terminal 1 and the file sharing system 5 (step S51-1), and file sharing is performed. A screen sharing state is established between the system 5 and the viewer terminal 3 (step S51-2). Thereby, the screen sharing between the presenter terminal 1 and the viewer terminal 3 is realized by relaying the file sharing system.

  As described above, according to the present embodiment, even when there is a request for screen sharing from a plurality of viewer terminals 3 to the explainer terminal 1, the file sharing system 5 changes the screen sharing state in place of the explainer terminal 1. As a result, the processing load on the explainer terminal 1 can be reduced.

  In this embodiment, the file sharing system 5 relays the establishment of the screen sharing state. However, the viewer terminal 3 directly acquires the image data related to the file screen from the explainer terminal 1. Alternatively, it may be acquired from the explainer terminal 1 via the file sharing system 5.

[Supplement 3 of Embodiment]
The file sharing system 5, the program providing system 9, and the maintenance system 10 in the above embodiment may be constructed by a single computer, or a plurality of computers arbitrarily assigned by dividing each unit (function or means) It may be constructed by. Further, when the program providing system 9 is constructed by a single computer, the program transmitted by the program providing system 9 may be transmitted in a plurality of modules or not. It may be transmitted. Furthermore, when the program providing system 9 is constructed by a plurality of computers, a plurality of modules may be divided and transmitted from each computer.

  In addition, a program for causing the presenter terminal 1, the viewer terminal 3, the file sharing system 5, the program providing system 9, and the maintenance system 10 to realize various functions (or function as various means) is a CD- It may be provided domestically or abroad by being recorded in a program product (Program Product) as a recording medium such as a ROM, a flash memory, or an HD.

1 Explainer terminal (example of own screen sharing device)
2 Communication network 3 Viewer terminal (example of partner's image sharing device)
5 File sharing system 9 Program providing system 10 Maintenance system 11 Transmission / reception unit (an example of a transmission means, an example of a reception means)
DESCRIPTION OF SYMBOLS 12 Operation input reception part 13 Screen sharing part 14 Display control part 15 Provision management part 16 Judgment part (an example of a judgment means)
17 Reference part (an example of reference means)
18 File creation unit (an example of file creation means)
19 Storage / reading processing unit (an example of storage means, an example of reading means)
1000 storage unit (an example of storage means)
1001 Provision management DB (an example of management means)

JP 2008-234072 A

Claims (9)

When displaying the first screen based on a predetermined task on the display means on the own screen sharing apparatus side, the second screen corresponding to the first screen is displayed on the display means on the partner screen sharing apparatus side. Is a screen sharing device that performs screen sharing,
Storage means for storing image data relating to the first screen;
Receiving means for receiving designated position information indicating the designated position in the display area of the display means on the partner screen sharing apparatus side from the partner screen sharing apparatus;
A determining means for specifying a position according to the received specified location information, determines whether included in the display area of the first screen corresponding to the second screen,
When it is determined that the designated position is included in the display area of the first screen, a reading unit that reads image data related to the first screen from the storage unit;
Transmitting means for transmitting the read image data relating to the first screen to the counterpart screen sharing device;
A screen sharing apparatus comprising: The screen sharing apparatus according to claim 1, further comprising:
Identification information for identifying the image data relating to the first screen stored in the storage means, and provision target information indicating whether the image data relating to the first screen can be provided to other than the self; A management means for associating and managing
When the determination means determines that the specified position is included in the display area of the second screen, the specified position corresponds to the second screen included in the display area. Reference means for referring to the corresponding provision target information by searching the management means based on the identification information of the image data relating to one screen,
When the corresponding provision target information indicates that the image data can be provided to the partner screen sharing apparatus, the reading unit determines that the designated position is included in the display area. A screen sharing apparatus, wherein image data relating to a first image corresponding to the second screen is read from the storage means. The image data is image data of a predetermined page that is a part of an electronic file,
The screen sharing apparatus according to claim 2, further comprising a file creation unit that creates, as an electronic file, image data of a page related to a second screen in which the designated position is included in the display area. The screen sharing apparatus according to claim 1, wherein
For the file sharing system capable of acquiring image data from the partner screen sharing device instead of transmitting the read image data to the partner screen sharing device. And transmitting the read image data. The management means associates and manages identification information of the image data and provision destination information indicating a provision destination capable of providing the image data,
When the determining unit determines that the designated position is included in the display area of the second screen , the referring unit includes a second unit that includes the specified position in the display area. By searching the management means based on the identification information of the image data relating to the first screen corresponding to the screen, the corresponding providing destination information is referred to,
When the corresponding providing destination information indicates that the image data can be provided, the reading unit determines that the specified position is included in the display area. 4. The screen sharing apparatus according to claim 2, wherein image data relating to a first screen corresponding to a screen is read from the storage unit. In the display means on the self screen sharing device side, a first other screen based on a task different from the task related to the first screen is displayed on the back of the first screen,
When the corresponding provision target information indicates that the image data cannot be provided to the partner screen sharing device by reference by the reference means, or the corresponding provision destination information cannot provide the image data The determination means replaces the first screen with the first other screen, and further displays the second screen on the back of the second screen. 6. The screen sharing apparatus according to claim 2, wherein the processing by each unit according to claim 1 is executed instead of the second other screen.   When it is determined by the determination means that the specified position related to the received specified position information is included in the display area of the first other screen corresponding to the second other screen. 7. The screen according to claim 6, further comprising display control means for displaying the first other screen in front of the first screen in the display means on the own screen sharing apparatus side. Shared device. When displaying the first screen based on a predetermined task on the display means on the own screen sharing apparatus side, the second screen corresponding to the first screen is displayed on the display means on the partner screen sharing apparatus side. A screen sharing method for screen sharing by a screen sharing device having a storage means for storing image data relating to the first screen,
The screen sharing device is
A receiving step of receiving, from the other party's screen sharing device, designated position information indicating the designated position in the display area of the display means on the other party's screen sharing device;
A determination step of specifying a position according to the received specified location information, determines whether included in the display area of the first screen corresponding to the second screen,
When it is determined that the designated position is included in the display area of the first screen, a reading step of reading out image data relating to the first screen from the storage unit;
A transmission step of transmitting image data relating to the read first screen to the partner screen sharing device;
The screen sharing method characterized by performing.   A program that causes a computer to function as each unit according to any one of claims 1 to 7.

Images