JP2019128718A - Program, document display control device, and document display control system - Google Patents

Abstract

To reduce the chances of unauthorized people viewing documents compared with a configuration that hides documents upon a clear instruction from a person displaying the documents.SOLUTION: A program makes a computer perform functions of; controlling display devices to display a document; monitoring the display devices to check for occurrence of a predetermined activity of a person not authorized to view the document while the document is displayed on the display devices; and controlling the display devices to hide the document when the predetermined activity is observed by the monitoring function.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a program, a document display control device, and a document display control system.

  After the morning ceremony starts, when you start sharing the screen when showing the material prepared by the leader in advance, members transition to the shared state and can view the desktop screen of the leader on their own PC in real time If you do not want to show members to the members on the desktop when you want to talk to the readers or if you want to see the material or mail you want to show next, stop the screen sharing and stop the screen sharing A screen sharing system is known in which members transition to a non-shared state and only the word “morning” is displayed on the desktop screen (see, for example, Patent Document 1).

JP 2008-234072 A

  Here, in the case of adopting a configuration in which the document is not displayed according to an explicit instruction of the person who is displaying the document, a person who does not have the authority to view the document may be, for example, a person who is displaying the document. If the user can get close to the display device on which the document is displayed without being noticed, the document can be browsed. Therefore, the risk of viewing the document by a person who does not have the authority to view the document is increased.

  An object of the present invention is to allow a person who does not have authority to view a document to view the document as compared with a case where the document is hidden by an explicit instruction of the person who is displaying the document. To reduce the risk.

The invention according to claim 1 is characterized in that a function of controlling a display device to display a document on a computer and a person who does not have the authority to view the document in a state where the document is displayed on the display device The display device is configured to hide the document when it is determined by the function of monitoring whether a predetermined event has occurred and the function of monitoring that the predetermined event has occurred. Is a program for realizing the function of controlling
The invention according to claim 2 is that the predetermined event is that a person who does not have the authority to view the document moves into the space where the display device exists. It is a program.
The invention according to claim 3 is that the predetermined event is that a person who does not have the authority to view the document logs in the system for displaying the document on the display device. It is the program described.
The invention according to claim 4 is the program according to claim 1, wherein the predetermined event is that a person who does not have the authority to view the document approaches the display device.
The invention according to claim 5 is the program according to claim 1, wherein the predetermined event is that a person who does not have the authority to view the document intends to display the document.
The invention according to claim 6 is characterized in that the function of controlling the display of the document is performed by the person who does not have the authority to view the document while the document is not displayed on the display device. The program according to claim 1, wherein the display device is controlled to display the document again when a predetermined event indicating that the user is leaving has occurred.
The invention according to claim 7 is characterized in that, in the case where a plurality of display devices are provided, the function of controlling the non-display of the document is the case where the document is displayed by the plurality of display devices. When it is known that the predetermined event has occurred in a person who does not have the authority to view the document on the display device, another display other than the one display device to hide the document It is a program of Claim 1 which controls an apparatus.
The invention according to claim 8 is characterized in that the function of controlling to display the document displays the document from any display device in a state where the document is not displayed on the other display device. The program according to claim 7, wherein the other display device is controlled to display the document again when an instruction is received.
The invention according to claim 9 is a display control means for controlling a display device to display a document, and a person who does not have the authority to view the document in a state where the document is displayed on the display device. Monitoring means for monitoring whether or not a predetermined event has occurred, and the display device to hide the document when it is determined by the monitoring means that the predetermined event has occurred And a non-display control unit for controlling the document display control apparatus.
In the invention according to claim 10, a display means for displaying a document, a display control means for controlling the display means to display the document, and the document displayed on the display means. A monitoring unit that monitors whether or not a predetermined event has occurred in a person who does not have the authority to view the document, and the monitoring unit determines that the predetermined event has occurred And a non-display control unit configured to control the display unit so as to make the document non-displayed.

According to the invention of claim 1, claim 4 and claim 5, the document is browsed in comparison with the case where the document is configured to be hidden according to the explicit instruction of the person displaying the document. The risk of the document being viewed by an unauthorized person is reduced.
According to the invention of claim 2, compared with the case where the document is configured to be hidden by logging in the system of the person who does not have the right to read the document, the person who does not have the right to read the document It is possible to precisely reduce the risk of reading a document.
According to the invention of claim 3, the authority to browse the document as compared to the case where the document is configured to be hidden by moving to the space where the document of the person who does not have the authority to view the document is displayed. It is possible to reduce the risk of a document being viewed by a person who does not have a simple method.
According to the sixth aspect of the present invention, if a person who does not have the authority to view a document leaves, the document can be browsed again.
According to the invention of claim 7, the document is displayed on the plurality of display devices in comparison with the case where the document is configured to be hidden by the explicit instruction of the person displaying the document. In such a case, it is possible to reduce the risk that the document is viewed for a person who does not have the authority to view the document.
According to the eighth aspect of the present invention, if there is a display instruction from any of the plurality of display devices, the document can be browsed again.
According to the invention of claim 9, the document is sent to the person who does not have the authority to view the document, as compared with the case where the document is configured to be hidden by the explicit instruction of the person who is displaying the document. The risk of browsing is reduced.
According to the invention of claim 10, the document is sent to the person who does not have the authority to view the document, as compared with the case where the document is configured to be hidden by the explicit instruction of the person who is displaying the document. The risk of browsing is reduced.

BRIEF DESCRIPTION OF THE DRAWINGS It is the figure which showed the example of whole structure of the electronic conference system by which embodiment of this invention is applied. It is a figure showing an example of hardware constitutions of a server in an embodiment of the invention, a master terminal, and a slave terminal. It is the block diagram which showed the function structural example of the electronic conference system in embodiment of this invention. It is the sequence diagram which showed the operation example at the time of starting the meeting of the electronic conference system in embodiment of this invention, and displaying a document. It is the sequence diagram which showed the example of operation | movement at the time of detecting the approach or separation | separation of the browsing disapproval person of the electronic conference system in embodiment of this invention, and making a document non-display state or a display state.

  Embodiments of the present invention will be described below in detail with reference to the accompanying drawings.

[Overall configuration of electronic conference system]
FIG. 1 is a diagram showing an example of the overall configuration of an electronic conference system to which the present embodiment is applied. As shown in the figure, this electronic conference system is configured by connecting a master terminal 10, slave terminals 30 a and 30 b, and a server 50 to a communication line 80. Although the slave terminals 30a and 30b are shown in the drawing, they may be referred to as slave terminals 30 when it is not necessary to distinguish them. Although only two slave terminals 30 are shown in the figure, three or more slave terminals 30 may be provided.

  The master terminal 10 is a terminal device used by the master. Here, the master is the presenter in the meeting. The master terminal 10 displays data (hereinafter, simply referred to as “material”) of the material to which the master refers in the presentation. Then, when the master performs operations such as editing figures and texts, turning pages, etc. on the material, operation information indicating the contents of the operation is transmitted to the server 50 so that the material is displayed synchronously on the slave terminal 30. To do.

  The slave terminal 30 is a terminal device used by the slave. Here, a slave is a participant in a conference. A slave can also become a master if it asks the master to change and is approved by the master. The slave terminal 30 displays the material that the master refers to in the presentation. At this time, the operation information is received from the server 50 so that the material to be displayed is synchronized with the material displayed on the master terminal 10.

  The server 50 stores the material that the master refers to in the presentation, and transmits this material to the master terminal 10 and the slave terminal 30. Further, by receiving operation information from the master terminal 10 and transmitting the operation information to the slave terminal 30, control is performed so that the material displayed on the slave terminal 30 is synchronized with the material displayed on the master terminal 10. In the present embodiment, the server 50 is provided as an example of the document display control device.

  The communication line 80 is communication means used for information communication between the master terminal 10 and the server 50, and between the slave terminal 30 and the server 50. As the communication line 80, for example, a LAN (Local Area Network) or the Internet may be used.

[Hardware configuration of server, master terminal, slave terminal]
FIG. 2 is a diagram showing an example of the hardware configuration of the server 50 in the present embodiment. As shown in the figure, the server 50 includes a CPU 51 that is a calculation means, a main memory 52 that is a storage means, and an HDD (Hard Disk Drive) 53. Here, the CPU 51 executes various types of software such as an OS (Operating System) and applications, and implements functions described below. The main memory 52 is a storage area for storing various software and data used for the execution thereof, and the HDD 53 is a storage area for storing input data for various software and output data from the various software and the like. Further, the server 50 includes a communication I / F 54 for performing communication with the outside, a display device 55 such as a display, and an input device 56 such as a keyboard and a mouse.

  Further, the hardware configuration shown in FIG. 2 can also be understood as the hardware configuration of the master terminal 10 and the slave terminal 30. However, when the master terminal 10 is described, the CPU 51, the main memory 52, the HDD 53, the communication I / F 54, the display device 55 and the input device 56 in FIG. 2 are respectively the CPU 11, the main memory 12, the HDD 13, the communication I / F 14 and the display When the slave terminal 30 is described, the CPU 51, the main memory 52, the HDD 53, the communication I / F 54, the display device 55, and the input device 56 in FIG. Reference numeral 32 denotes the HDD 33, the communication I / F 34, the display device 35, and the input device 36.

  In the present embodiment, the display device 15 and the display device 35 are provided as an example of a display device or display means.

[Outline of this embodiment]
In this embodiment, in such an electronic meeting system, a person who has entered the meeting room after the start of the meeting or a person who has logged in to the electronic meeting system is detected and those who are not permitted to view the material As a “browser not permitted”), the material being displayed on the master terminal 10 or the slave terminal 30 is hidden and cannot be browsed. In addition, after disabling the browsing of the material, if the person who is not permitted to browse is not detected, the state is changed to a state where the material can be displayed and browsed again. The person who is not permitted to browse is an example of a person who does not have the authority to browse documents.

[Functional configuration of electronic conference system]
FIG. 3 is a block diagram showing an example of the functional configuration of each device constituting the electronic conference system according to the present embodiment. As illustrated, the electronic conference system in the present embodiment includes a master terminal 10, a slave terminal 30, and a server 50. As described above, there may be two or more slave terminals 30, but only one is shown here.

  First, a functional configuration example of the master terminal 10 will be described. As illustrated, the master terminal 10 includes a transmitting unit 21, a receiving unit 22, an operation receiving unit 23, a display control unit 24, and a resident program unit 25.

  The transmitting unit 21 transmits, to the server 50, meeting start information indicating that the meeting is to be started, when starting the meeting. Further, when the material is displayed on the master terminal 10, the material ID is transmitted to the server 50.

  The receiving unit 22 receives the material from the server 50 when displaying the material on the master terminal 10. In addition, when the approach of the person who is not permitted to browse is detected, non-display instruction information instructing to make the material being displayed non-displayed state is received from the server 50. Further, when the separation of the person not permitted to browse is detected (moving away), the non-display cancellation instruction information for instructing to cancel the non-display state of the material is received from the server 50.

  When starting the meeting, the operation receiving unit 23 receives an operation to start the meeting. Further, when displaying the material on the master terminal 10, an operation of inputting the material ID is received.

  The display control unit 24 controls the display device 15 to display the material when displaying the material on the master terminal 10. In addition, when the approach of the person who is not permitted to browse is detected, the display device 15 is controlled so as to hide the material being displayed. For example, when a document is displayed by a web browser as an image in JPEG format or the like, a blank image may be displayed to make the document non-displayed. In addition, all displayed documents and applications are forcibly closed by temporarily closing them, or a specific application such as a specific browser is forcibly activated to display full screen. You may hide the document by hiding it. Furthermore, when separation of a person who is not permitted to browse is detected, the display device 15 is controlled to release the non-display state of the material.

  The resident program unit 25 monitors whether or not a predetermined event has occurred, such as a person who entered the conference room after the start of the meeting or a person who logged in to the electronic conference system. For example, when information indicating that an event has occurred is received from an approach detection unit 68 of the server 50 described later, the display device 15 is controlled so that the displayed material is hidden.

  Next, a functional configuration example of the slave terminal 30 will be described. As illustrated, the slave terminal 30 includes a transmitting unit 41, a receiving unit 42, an operation receiving unit 43, a display control unit 44, and a resident program unit 45.

  The transmitting unit 41 does not particularly function when changing the display state of the material due to the approaching or leaving of the browsing disallowed person, but transmits to the server 50 operation information indicating various operations in other situations.

  When displaying the material on the slave terminal 30, the receiving unit 42 receives the material from the server 50. In addition, when the approach of the person who is not permitted to browse is detected, non-display instruction information instructing to make the material being displayed non-displayed state is received from the server 50. Further, when the separation of the person not permitted to browse is detected (moving away), the non-display cancellation instruction information for instructing to cancel the non-display state of the material is received from the server 50.

  The operation reception unit 43 does not function particularly when changing the display state of the material due to the approach or separation of a person who is not permitted to browse, but receives various operations in other situations.

  When displaying the material on the slave terminal 30, the display control unit 44 controls the display device 35 to display the material. In addition, when the approach of the person who is not permitted to browse is detected, the display device 35 is controlled so as to hide the material being displayed. For example, when a document is displayed by a web browser as an image in JPEG format or the like, a blank image may be displayed to make the document non-displayed. In addition, all displayed documents and applications are forcibly closed by temporarily closing them, or a specific application such as a specific browser is forcibly activated to display full screen. You may hide the document by hiding it. Furthermore, when separation of a person who is not permitted to browse is detected, the display device 35 is controlled to release the non-display state of the material.

  The resident program unit 45 monitors whether or not a predetermined event has occurred, such as a person who has entered the conference room or a person who has logged in to the electronic conference system after the start of the conference. For example, when information indicating that an event has occurred is received from an approach detection unit 68 of the server 50 to be described later, the display device 35 is controlled so that the displayed material is hidden. In addition, when information indicating that an event has occurred is received from the resident program unit 25 of the master terminal 10 described above, the display device 35 may be controlled to hide the material being displayed.

  Next, a functional configuration example of the server 50 will be described. As illustrated, the server 50 includes a transmitting unit 61, a receiving unit 62, a material storage unit 65, a material management unit 66, a conference management unit 67, an approach detection unit 68, and a separation detection unit 69. Prepare.

  The transmission unit 61 transmits the material to the master terminal 10 when displaying the material on the master terminal 10, and transmits the material to the slave terminal 30 when displaying the material on the slave terminal 30. Also, when the approach of a person who is not permitted to browse is detected, non-display instruction information for instructing to make the material being displayed non-displayed is transmitted to the master terminal 10 and the slave terminal 30. Furthermore, when separation of the person who is not permitted to browse is detected, non-display cancellation instruction information instructing cancellation of the non-display state of the material is transmitted to the master terminal 10 and the slave terminal 30. In the present embodiment, as an example of a display control unit that controls the display unit or the display unit to display a document, or a non-display control unit that controls the display unit or the display unit to hide the document. As an example, the transmission unit 61 is provided.

  When starting the conference, the reception unit 62 receives conference start information indicating that the conference is started from the master terminal 10. Further, when the material is displayed on the master terminal 10, the material ID is received from the master terminal 10.

  The material storage unit 65 stores the material registered in the server 50.

  When displaying the material on the master terminal 10, the material management unit 66 acquires from the material storage unit 65 the material identified by the material ID received from the receiving unit 62.

  When the meeting is started, the meeting management unit 67 stores a state in which the meeting is in progress (hereinafter referred to as “in-meeting state”). Further, in response to the inquiry from the approach detection unit 68, it is returned whether or not the in-meeting state is stored, that is, whether or not it is after the start of the meeting.

  When the proximity detection unit 68 inquires of the conference management unit 67 and a response indicating that the conference is started is returned, the proximity detection unit 68 detects a person approaching the master terminal 10 or the slave terminal 30 as a browsing disallowed person. For example, if a physical sensor is installed in a conference room and connected to the server 50 via a communication line, and the physical sensor notifies that a person who has entered the conference room has been detected after the start of the conference, that person cannot be viewed. The approach may be detected as a permitter. In addition, when an access point near the conference room is connected to the server 50 via a communication line and the access point notifies the notebook PC or the like that a radio wave having a strength higher than a threshold is received after the conference starts, the notebook PC or the like is connected. The approach may be detected as an unauthorized person who views the owner. Alternatively, when there is a person who logs in to the electronic conference system after the start of the conference, the approach may be detected as the person who is not a browsing person. This assumes that a person who intends to enter the conference room after the conference starts may log in to the electronic conference system from a notebook PC or the like on the way to the conference room. Further, it is assumed that the approach detection unit 68 passes the information of the browsing disallowed person who detected that the user is approaching to the separation detection unit 69.

  The separation detecting unit 69 detects that the browsing disallowed person separates (is separated) from the master terminal 10 or the slave terminal 30. For example, when it is notified from the physical sensor that the access non-permission person detected by the approach detection unit 68 detects that the non-permission user is out of the conference room, separation of the non-permission user may be detected. In addition, when it is notified from the access point that the radio wave with the intensity below the threshold is received from the notebook PC etc. owned by the browsing unauthorized person detected by the proximity detection unit 68, the separation of the browsing unauthorized person is detected. May be. Alternatively, when a person who is not permitted to browse detected by the approach detection unit 68 logs out of the electronic conference system, the distance of the person who is not permitted to browse may be detected.

[Operation of electronic conference system]
FIG. 4 is a sequence diagram showing an operation example when displaying a document by starting a conference of the electronic conference system according to the present embodiment.

  As illustrated, in the master terminal 10, when the master performs an operation to start a conference, the operation accepting unit 23 accepts this operation (step 101). Then, the transmitting unit 21 transmits, to the server 50, meeting start information indicating that the meeting is to be started (step 102).

  Then, in the server 50, the receiving unit 62 receives the conference start information from the master terminal 10 (step 501). Then, the meeting management unit 67 stores the in-meeting state (step 502).

  Thereafter, in the master terminal 10, when the master performs an operation of selecting a material ID, the operation reception unit 23 receives this operation (step 103). At this time, the operation of selecting the material ID may be performed, for example, by specifying the material ID on the list including the material ID displayed on the master terminal 10. Then, the transmitting unit 21 transmits the selected material ID to the server 50 (step 104).

  Then, in the server 50, the receiving unit 62 receives the material ID from the master terminal 10 (step 503). Then, the material management unit 66 acquires the material corresponding to the material ID from the material storage unit 65 (step 504). Thereafter, the transmitting unit 61 transmits the material to the master terminal 10 and the slave terminal 30 (step 505).

  Thus, in the master terminal 10, the receiving unit 22 receives the material (step 105). Then, the display control unit 24 controls the display device 15 to display the material (step 106).

  Further, in the slave terminal 30, the receiving unit 42 receives the material (Step 301). Then, the display control unit 44 controls the display device 35 to display the material (step 302).

  FIG. 5 is a sequence diagram illustrating an operation example when the approach or separation of a person who is not permitted to browse is detected in the electronic conference system according to the present embodiment and the document is set in a non-display state or a display state.

  As shown in the figure, in the server 50, the approach detection unit 68 detects the approach of the person not permitted to browse to the master terminal 10 or the slave terminal 30 (step 521). For example, when a new terminal is connected to the server 50, if a response indicating that the conference has started is returned to the conference management unit 67, the owner of the terminal is detected as an unpermitted person. Then, the transmitting unit 61 transmits non-display instruction information for instructing the material being displayed to be in the non-display state to the master terminal 10 and the slave terminal 30 (step 522).

  Thereby, in the master terminal 10, the receiving unit 22 receives non-display instruction information from the server 50 (step 121). Then, the display control unit 24 controls the display device 15 so that the document being displayed is not displayed (step 122).

  Further, in the slave terminal 30, the receiving unit 42 receives non-display instruction information from the server 50 (step 321). Then, the display control unit 44 controls the display device 35 so that the displayed material is not displayed (step 322).

  On the other hand, in the server 50, the separation detecting unit 69 detects separation of the browsing disallowed person from the master terminal 10 or the slave terminal 30 (step 523). Then, the transmission unit 61 transmits non-display cancellation instruction information instructing cancellation of the non-display state of the material to the master terminal 10 and the slave terminal 30 (step 524).

  Thereby, in the master terminal 10, the receiving unit 22 receives non-display cancellation instruction information from the server 50 (step 123). Then, the display control unit 24 controls the display device 15 to release the non-display state of the material (step 124).

  In the slave terminal 30, the receiving unit 42 receives the non-display cancellation instruction information from the server 50 (step 323). Then, the display control unit 44 controls the display device 35 to release the non-display state of the material (step 324).

  In this operation example, although a person who has entered the meeting room after the start of the conference or a person who has logged in to the system is detected as an unauthorized viewing person without exception, it is not limited to this. It may be controlled so that a person who is excluded from the object to be detected as a browsing-permitted person is registered in advance, and the material is not hidden when the person is detected. This is to prevent the material from being hidden more than necessary when participants enter or leave the conference.

  By the way, in the present embodiment, when it is detected that there is a person who has entered the meeting room after the start of the meeting or a person who logs in to the system after the start of the meeting, the material being displayed is made non-displayed. However, this is not the case. When it is detected that another event indicating that the master terminal 10 or the slave terminal 30 is approaching occurs, the material being displayed may be made non-displayed. In this sense, the fact that there are people who have entered the meeting room after the start of the meeting or who have logged in to the system after the start of the meeting means that those who do not have the authority to view the document are approaching the display device. It is an example of the predetermined event shown. And a meeting room is an example of space where a display apparatus exists.

  Alternatively, instead of the fact that a person who does not have the authority to view the document approaches the display device, the fact that a person who does not have the authority to view the document tries to display the document is used as a predetermined event. Also good. In this case, when it is detected that a person who does not have the authority to view the document tries to display the document, the document being displayed is made non-displayed. For example, when chatting with three users A, B, and C, when the user D enters the same chat, it is possible to temporarily hide the previous chat history. Further, when it is detected that another event has occurred in a person who does not have the authority to view the document, the displayed material may be hidden. In this sense, the fact that a person who does not have the authority to view the document approaches the display device or a person who does not have the authority to view the document tries to view the document has the authority to view the document. It is an example of the predetermined event in the person who does not do it.

  Furthermore, in the present embodiment, when it is detected that a person who is not allowed to browse has left the meeting room or logged out of the system, the material that is in the non-display state is displayed again. is not. When it is detected that another event indicating that the user is moving away from the master terminal 10 or the slave terminal 30 has occurred, the hidden material may be displayed again. In this sense, the fact that the unauthorized person has left the meeting room or logged out of the system indicates that the person who does not have the authority to view the document is leaving the display device. It is an example.

  Further, in the present embodiment, the slave terminal 30 is mainly described as one, but a configuration may be considered in which a plurality of slave terminals 30 share and display materials. In such a configuration, when the occurrence of an event is detected, the material may be hidden in all slave terminals 30. Alternatively, the material may be hidden on the master terminal 10 and all slave terminals 30. Then, after the document is set in the non-display state, when an instruction for permitting the document display is input in either the master terminal 10 or the plurality of slave terminals 30, the non-display state is canceled and the document is displayed. May be displayed again.

  Further, in the present embodiment, the user can enter the meeting room even after the start of the conference, and when the person who has entered the meeting room is detected, the material being displayed on the master terminal 10 or the slave terminal 30 is not displayed. It was in the state, but it is not this limitation. After the start of the meeting, the user may be prevented from entering the meeting room. For example, an entrance / exit management system with an ID card may be provided, linked with an electronic conference system, and controlled such as prohibiting entry by the entrance / exit management system after the start of the conference.

  Further, in the present embodiment, after enabling a user to log in to the system even after the start of the conference, when a person who logs in to the system is detected, the material displayed on the master terminal 10 or the slave terminal 30 is hidden. However, this is not the case. After the start of the meeting, you may not be able to log in to the system.

  Furthermore, although the case where this invention was applied to the teleconference system was described in this Embodiment, you may apply to systems other than a teleconference system. As a system other than the electronic conference system, for example, a lecture system in a school etc. can be considered. In such a system, the master is a teacher and the slaves are students. Further, in such a system, a target to control display and non-display may be not a material but a teaching material. Alternatively, assuming a general system other than the electronic conference system, a target to control display and non-display may be a document. Here, as described above as an example, the document includes history information such as characters indicating the result of communication such as chat performed between the plurality of display devices through the input of characters and the like. To do.

  Furthermore, in the present embodiment, the server 50 has a function of controlling the display and non-display of a document by detecting the approach or separation of a person who is not permitted to browse, but this is not restrictive. For example, the master terminal 10 may have such a function. In this case, the master terminal 10 is an example of a document display control device, and the resident program unit 25 is an example of a monitoring unit. The display control unit 24 is provided as an example of the display control means and the non-display control means when the display device 15 is an example of a display device or display means, and the display device 35 is an example of a display device or display means The transmission unit 21 is provided as an example of the display control unit and the non-display control unit at a given time. Alternatively, the slave terminal 30 may have such a function. In this case, the slave terminal 30 is an example of a document display control device, and the resident program unit 45 is an example of a monitoring unit. A display control unit 44 is provided as an example of the display control means and the non-display control means when the display device 35 is an example of the display device or the display means, and the display device 15 is an example of the display device or the display means The transmission part 41 is provided as an example of a display control means and non-display control means at a given time.

[program]
The processing performed by the server 50 in the present embodiment is prepared, for example, as a program such as application software.

  That is, the program for realizing the present embodiment has a function of controlling the display device to display the document on the computer, and a person who does not have the authority to view the document in the state that the document is displayed on the display device. A function to monitor whether or not a predetermined event has occurred, and a function to control the display device to hide the document when it is grasped by the function to monitor that the predetermined event has occurred It can be seen as a program for realizing

  The program for realizing the present embodiment can be provided by communication means as well as provided by being stored in a recording medium such as a CD-ROM.

DESCRIPTION OF SYMBOLS 10 ... Master terminal, 21, 41, 61 ... Transmission part, 22, 42, 62 ... Reception part, 23, 43 ... Operation reception part, 24, 44 ... Display control part, 25, 45 ... Resident program part, 30 ... Slave Terminal, 50: server, 65: material storage unit, 66: material management unit, 67: conference management unit, 68: proximity detection unit, 69: separation distance detection unit, 80: communication line

Claims (10)

On the computer,
The ability to control the display device to display the document;
A function of monitoring whether a predetermined event has occurred in a person who does not have authority to view the document in a state where the document is displayed on the display device;
A program for realizing a function of controlling the display device so as to hide the document when it is determined by the monitoring function that the predetermined event has occurred.   The program according to claim 1, wherein the predetermined event is that a person who does not have the authority to view the document moves into the space where the display device exists.   The program according to claim 1, wherein the predetermined event is that a person who does not have authority to view the document logs in to a system that displays the document on the display device.   The program according to claim 1, wherein the predetermined event is that a person who does not have the authority to view the document is approaching the display device.   The program according to claim 1, wherein the predetermined event is that a person who does not have the authority to view the document tries to display the document.   The function of controlling to display the document indicates in advance that in a state where the document is not displayed on the display device, a person who does not have the authority to view the document has moved away from the display device. The program according to claim 1, wherein when a predetermined event occurs, the display device is controlled to display the document again.   In the case where the plurality of display devices are provided with a function to control the document to be non-displayed, when the document is displayed on the plurality of display devices, the authority to view the document on one display device The display device according to claim 1, wherein when it is determined that the predetermined event has occurred in a person who does not have a document, a display device other than the one display device is controlled so that the document is not displayed. The listed program.   The function of controlling to display the document is that, when an instruction to display the document is received from any display device while the document is not displayed on the other display device, The program according to claim 7, which controls the other display device to display the document again. Display control means for controlling the display device to display the document;
Monitoring means for monitoring whether or not a predetermined event has occurred in a person who does not have the authority to view the document while the document is displayed on the display device;
A document including: non-display control means for controlling the display device so as to hide the document when it is recognized by the monitoring means that the predetermined event has occurred Display control device. Display means for displaying the document;
Display control means for controlling the display means to display the document;
Monitoring means for monitoring whether a predetermined event has occurred in a person who does not have authority to view the document in a state where the document is displayed on the display means;
A document including: non-display control means for controlling the display means so as to hide the document when it is determined by the monitoring means that the predetermined event has occurred Display control system.

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