JP6176448B2 - Display system, display device, and transfer data display method - Google Patents

Description

  The present invention relates to a display system, a display device, and a transfer data display method for displaying data transferred from a terminal so that a plurality of people can view the data.

  A display system used in a meeting or the like includes a large-screen display device that can be viewed by a plurality of people, and displays data such as images and characters transferred from each user's personal terminal on the display device.

  As a method for the user to select data to be displayed on the display device, the user selects data on the personal terminal, and only the selected data is transferred from the personal terminal to the display device for display, There is a second method in which the user selects data to be continuously displayed or data to be erased on the screen of the display device after the data is transferred from the terminal to the display device and displayed.

JP 2008-198015 A

  In the first method described above, the data to be displayed on the transfer destination display device is checked and selected on a small screen of the personal terminal. Therefore, when a large number of data is displayed on the small one screen, It is difficult to confirm the contents of data, and data selection mistakes are likely to occur. If data is selected and transmitted by mistake, data unintended by the user is displayed on a large-screen display device and is viewed by other viewers.

  In the second method, since data is selected on a display device with a large screen, it is easy to confirm the contents of the data at the time of selection. However, since all the data transferred in a batch is displayed on a large screen display device, if confidential data and data that should not be disclosed are mixed during the batch transfer, these will be seen by other viewers. .

  The present invention is intended to solve the above-described problem, and prevents confidential data or the like unintended by the transferer from being displayed on the display device at the transfer destination and the contents being known to other viewers. An object of the present invention is to provide a display system, a display device, and a transfer data display method.

  The gist of the present invention for achieving the object lies in the inventions of the following items.

[1] A display system having a terminal and a display device that can be viewed by a plurality of people for displaying data transferred from the terminal,
A concealment unit that changes a display form when data transferred from the terminal to the display apparatus is first displayed on the display apparatus, to be a concealment form in which the content of the data is concealed;
A selection unit that receives a selection from the user as to whether or not to change the display form of the data displayed in the concealment form on the display device to a normal form in which the content of the data is not concealed;
A concealment release unit that changes the display form of the data selected to be changed by the selection unit to the normal form;
I have a,
The display system characterized in that the concealment release unit changes the data displayed in the concealment form when a predetermined time has elapsed after being displayed on the display device in the concealment form .

In the above invention and the inventions described in [ 8 ] and [ 14 ] below, the data transferred from the terminal to the display device is first displayed in a concealed form in which the content of the data is concealed. After that, the user accepts a selection as to whether or not to change the display form of the data displayed in the confidential form to the normal form in which the content of the data is not concealed, and the display form of the data selected to be changed is changed to the normal form Change to Since it is first displayed in a concealed form, it is possible to prevent the contents of the data transferred by mistake from being displayed on the display device and immediately being known to others. In addition, data that has been displayed for a predetermined time after being displayed in a concealed form is automatically released from concealment. Since only the data that does not release confidentiality (data to be deleted) needs to be selected, the burden of the selection operation is reduced.

[2] It further includes a determination unit that determines whether the data is confidential.
When the determination unit determines that the data needs to be concealed, the concealment unit changes the display form when the data is first displayed on the display device to the concealment form, and the determination unit displays the data The display system according to [1], wherein when the data is determined to be unnecessary, the display form when the data is first displayed on the display device is the normal form.

In the invention described above and the inventions described in [ 9 ] and [ 15 ] below, only data that needs to be concealed is selectively concealed. For example, whether another person is viewing the display device, the number of people viewing the display device, the type of transferred data, whether the user viewing the display device is a user who is allowed to share data, The necessity of secrecy is determined based on the above.

[3] The display system according to [2], wherein the determination unit determines that the concealment of the data is unnecessary when the viewer of the display device is only the user who transferred the data from the terminal.

In the above invention and the inventions described in [ 10 ] and [ 16 ] below, if a person other than the user of the terminal that transferred the data is not browsing the display device, the confidential data is transferred erroneously to the display device. Even if it is displayed, there is no fear of leaking confidential information.

[4] The display system according to any one of [1] to [3], wherein the selection unit is provided in the display device.

In the above invention and the invention described in [ 17 ] below, the user can select whether or not to release the confidentiality on the display device while viewing the data in the confidential form displayed on the display device.

[5] The selection unit accepts the selection of one piece of data displayed on the display device in the secret form only from a user of a terminal that is a transfer source of the one piece of data. [1 ] To the display system according to any one of [4].

In the above invention and the inventions described in [ 11 ] and [ 18 ] below, only the user who has transferred the data to the display device can select whether or not to release the data confidentiality.

[6] The information processing apparatus according to any one of [1] to [5], further including: an erasing unit that erases the display in the confidential form of the data selected not to be changed by the selection unit. Display system.

In the above invention and the inventions described in the following [ 12 ] and [ 19 ], the data that does not release the secrecy is not required to be displayed on the display device, and thus is erased.

[ 7 ] Any one of [1] to [ 6 ], wherein the concealment release unit changes the display to the normal form only for a partial range of the data displayed in the concealment form. The display system according to one.

In the above-described invention and the inventions described in [ 13 ] and [ 20 ] below, when the secrecy is released, the secrecy is maintained for a part of the range, and the secrecy is released for the other part of the range. For example, in the case of an image in which it is not necessary to specify a person in a photograph in which a person is shown and it is only necessary to know the location, the secrecy of other parts is released while maintaining the secrecy of the face part of the person. It becomes possible.

[ 8 ] a receiving unit for receiving display target data from the terminal;
A display section that can be viewed by multiple people,
A concealment unit that changes a display form when data received from the terminal by the reception unit is first displayed on the display unit to a concealment form in which the content of the data is concealed;
A selection unit that receives a selection from the user as to whether or not to change the display form of the data displayed in the secret form on the display unit to a normal form in which the content of the data is not concealed;
A concealment release unit that changes the display form of the data selected to be changed by the selection unit to the normal form;
I have a,
The display device according to claim 1, wherein the concealment release unit changes the data displayed in the concealment mode when a predetermined time has elapsed after being displayed on the display unit in the concealment mode .

[ 9 ] It further includes a determination unit that determines whether or not the data is confidential.
When the determination unit determines that the data needs to be concealed, the concealment unit changes the display form when the data is first displayed on the display unit to the concealment form, and the determination unit displays the data The display device according to [ 8 ], wherein when the data is determined to be unnecessary, the display form when the data is first displayed on the display device is the normal form.

[ 10 ] The display device according to [ 9 ], wherein the determination unit determines that the data is not required to be concealed when the viewer of the display unit is only a user who has transferred data from the terminal.

[ 11 ] The selection unit accepts the selection of one piece of data displayed on the display unit in the secret form only from a user of a terminal that is a transfer source of the one piece of data. [ 8] ] To [ 10 ]. The display device according to any one of [ 10 ].

[ 12 ] The information processing apparatus according to any one of [ 8 ] to [ 11 ], further including an erasing unit that erases the display of the data selected not to be changed by the selection unit in the concealment form. Display device.

[ 13 ] Any one of [ 8 ] to [ 12 ], wherein the concealment release unit changes the display to the normal form only for a partial range of the data displayed in the concealment form. The display device described in one.

[ 14 ] An initial display step in which data transferred from a terminal to a display device that can be viewed by a plurality of people is first displayed in a concealed form in which the content of the data is concealed;
A selection step of receiving from the user a selection as to whether or not to change the display form of the data displayed in the concealment form on the display device to a normal form in which the content of the data is not concealed;
A concealment release step of changing the display form of the data selected to be changed in the selection step to the normal form ;
A second concealment release step of changing the display form of the data displayed in the concealment form to the normal form when a predetermined time has elapsed since the display in the concealment form on the display device;
The transfer data display method characterized by having.

[ 15 ] having a determination step of determining whether the data needs to be concealed;
In the initial display step, the data is displayed in the confidential form when it is determined that the confidentiality is required in the determining step, and the data is displayed in the normal form when the confidentiality is determined not necessary in the determining step. [ 14 ] The transfer data display method described in [ 14 ].

[16] The at decision step, the display case viewers device users only data has been transferred from the terminal secret of the data transfer the data display according to, characterized in that it is determined that the required [15] Method.

[ 17 ] The transfer data display method according to any one of [ 14 ] to [ 16 ], wherein the selection is received by a selection unit provided in the display device.

[ 18 ] In the selection step, the selection of one data displayed on the display device in the concealed form is accepted only from a user of a terminal that is a transfer source of the one data. [ 14] ] To [ 17 ]. The transfer data display method according to any one of [ 17 ].

[ 19 ] The method according to any one of [ 14 ] to [ 18 ], further comprising: an erasing step of erasing the display in the confidential form of the data selected not to be changed in the selection step. Transfer data display method.

[ 20 ] Any one of [ 14 ] to [ 19 ], wherein in the concealment release step, only a partial range of the data displayed in the concealment form is changed to the display in the normal form. Transfer data display method described in 1.

  According to the display system, the display device, and the transfer data display method according to the present invention, it is possible to prevent confidential data or the like not intended by the transferer from being displayed on the transfer destination display device and the contents to be known to other viewers. The

It is a figure which shows the example of the external appearance of the outline of the display system which concerns on embodiment of this invention. It is a block diagram which shows schematic structure of the display system which concerns on embodiment of this invention. It is a figure which shows the structure and schematic operation | movement flow of a display system of the 1st mounting format. It is a figure which shows the general | schematic operation | movement sequence of the display system of a 1st mounting format. It is a flowchart which shows an example of a concealment process (the part of step S202 and S203 of FIG. 3). It is a flowchart which shows the detail of the secrecy cancellation | release process (the part of FIG.3 S205, S206) in the display system of a 1st mounting format. It is a figure which shows the structure and schematic operation | movement flow of a display system of a 2nd mounting format. It is a figure which shows the operation | movement sequence of the outline of the display system of a 2nd mounting format. It is a flowchart which shows the detail of the secrecy cancellation | release process (the part of step S155-S157 of FIG. 7) in the display system of a 2nd mounting format.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 shows a configuration example of a display system 3 according to the present invention. The display system 3 is used, for example, in a conference, and includes a mobile terminal 10 used by each conference participant and a display device 20 that the conference participants browse in common. As the display device 20, for example, a large display or a projector is used.

  When data such as images, characters, and handwritten memos are transferred from the mobile terminal 10 to the display device 20, the images, characters, and handwritten memos indicated by the data are displayed largely on the display device 20.

  In the display system 3, when data transferred from the mobile terminal 10 to the display device 20 is first displayed on the display device 20, the display system 3 is in a concealed form, which is a concealed form so that the contents cannot be seen even when viewed by others. indicate. For example, the concealment mode is a blurring, mosaic, low resolution, obscuring process such as painting a part of a character or image, or a roughening process such as iconization or name display, or only a part. This is a display form in which the content is not understood even if others see it, such as processing to cut and display. However, the person who transferred the data from the mobile terminal 10 is concealed to the extent that the content can be identified.

  Thereafter, the user who has transferred the data from the mobile terminal 10 to the display device 20 sees the data displayed in the confidential form on the display device 20, and determines whether or not the data may be released. It is determined whether or not it may be seen by other viewers near the display device 20, and selection of whether or not to release the secrecy is performed for each data. When the selection of deciphering is received, the display form of the data displayed in the concealment form is changed to a normal form in which the content of the data is not concealed. For example, data such as images and characters before the concealment process is displayed as it is.

  FIG. 2 is a block diagram illustrating a schematic configuration of the display system 3. The mobile terminal 10 includes a control unit 11, a display unit 12, a data storage unit 13, an operation input unit 14, and a communication unit 15. The control unit 11 that performs overall control of the operation of the mobile terminal 10 includes a CPU (Central Processing Unit), a Flash ROM (Read Only Memory), a RAM (Random Access Memory), and the like as main parts. The function as the portable terminal 10 is realized by the CPU operating according to the program stored in the FlashROM.

  The display unit 12 includes a liquid crystal display. The operation input unit 14 is provided on the screen of the display unit 12 and includes a touch panel for detecting a contact position of a pen or the like on the screen and various operation switches. The mobile terminal 10 receives input of handwritten characters and the like from the user through the touch panel of the operation input unit 14.

  The data storage unit 13 stores contents, figures, images, and the like input by handwriting. The communication unit 15 performs a function of communicating with the display device 20 and other devices connected to the network by wireless communication. For example, the data selected by the user is transmitted to the display device 20 by the communication unit 15.

  The display device 20 includes a control unit 21, a display unit 22, a selection unit 23, and a communication unit 24. The control unit 21 performs a function of performing overall control of the operation of the display device 20, and includes a CPU, FlashROM, RAM, and the like as main parts. The function of the display device 20 is realized by the CPU operating in accordance with a program stored in the FlashROM.

  The display unit 22 can be browsed by a plurality of people, and includes, for example, a large liquid crystal display or a projector. The screen of the display unit 22 is larger than the display unit 12. The selection unit 23 is provided on the screen of the display unit 22 and includes various operation switches in addition to a touch panel that detects a contact position of a finger or the like on the screen. The display device 20 receives a selection from the user through the selection unit 23 as to whether or not to change the data displayed in the secret form to the normal form display.

  The above selection for each data is accepted only from the sender (transferr) of the data. For example, the mobile terminal 10 adds the identification information indicating the user of the mobile terminal 10 to each data transferred to the display device 20 and transmits the data. The display device 20 requests the input of user identification information and a password when receiving the selection of whether or not to release the confidentiality for the data displayed in the confidential form, and these are the senders of the data. The selection operation for the data is accepted only when the identification information and password match. Instead of inputting the identification information and the password, for example, a method may be used in which selection is permitted when the identification information of the corresponding user is received from an IC card that transmits the identification information of the user.

  The display system 3 further includes a concealment unit 5 for concealing data, a determination unit 6 for determining whether concealment is necessary, and a concealment release unit for changing the display form of data displayed in the concealment form to a normal form 7 functions are provided.

  The concealment unit 5 creates display data for displaying the data in the concealment form as described above.

The determination unit 6 determines whether or not it is necessary to conceal according to a predetermined concealment rule. The following can be applied as the concealment rule.
(1) Number of viewers and viewers When the mobile terminal 10 and the display device 20 are close to each other, when there is only one person browsing the display device 20, that is, the person near the display device 20 is the mobile terminal 10 In the case of only the user, since it is not viewed by others, it is determined that confidentiality is unnecessary, and when there are a plurality of people near the display device 20, it is determined that confidentiality is necessary. Alternatively, if the viewer is only the user who transferred the data from the terminal, it is determined that confidentiality is unnecessary.

(2) Image analysis The necessity of secrecy is determined according to the content of the image. For example, when the data is an image, the content is analyzed. If the image is a landscape image, it is not concealed, and if it is a person image, it is concealed.

(3) Data accompanying information (tag information)
The necessity of secrecy is determined based on information accompanying the data. For example, when the user adds a tag indicating the level of concealment to the data, the data is concealed if the concealment level indicated by the tag is equal to or higher than a threshold, and is not concealed if the level is lower than the threshold. Concealment level is set for private use and business use.

  The above tagging may be performed by the user himself, or may be automatically performed by the apparatus when storing data in a PC (personal computer) or the mobile terminal 10. Tagging is performed depending on whether or not MDM (Mobile Device Management) is managed. Alternatively, whether or not to conceal may be determined based on the extension of the file. For example, it is determined that a file with the extension “ppt” is to be concealed.

(4) Interlocking with the scheduler The event such as a meeting and its participants are grasped by the scheduler, and the concealment is judged according to whether or not the event is for only the participants who are permitted to share the data to be transferred. . For details, there are the following (4-1) and (4-2).

(4-1) The user sets in advance a concealment level for events such as conferences and participants.
For example, if the scheduler performs the following settings, it links with the software of the display system 3 via the network, reads the concealment level of events such as conferences and work held at that time, and concealment rules accordingly Concealment is performed at
-Setting of concealment level, information sharing level, importance level, etc. Concealment level 0: No concealment process. For example, in the case of a regular meeting of the same team in the same department, the concealment level is set to 0.
Concealment level 1: Concealment is performed so that an individual can be identified. For example, in-house task force.
Concealment level 2: Concealment is performed on the entire surface. This includes meetings with people outside the company.
-In the case of a scheduler linked with a mailer, a concealment level is set in advance from the contact list in units of individuals or groups of members.

(4-2) Judgment from past shared performance.
Processing contents when the software of the display system 3 linked with the scheduler shares the information of the scheduler, for example, the participant, the group to which the participant belongs, the name of the conference, etc. Record. Then, when another meeting or work is scheduled in the scheduler, a concealment rule is automatically set based on a comprehensive judgment based on past information.

  The concealment release unit 7 performs a process of changing all or part of the display form of the data displayed in the concealment form to a form in which the content is not concealed. For example, if you only want to know the overall atmosphere of the place where the image was taken, and you want to share the image so that the individuals who are shown are not identified, keep the face part of the person hidden, Only the other part is released.

  A rule (confidential cancellation rule) regarding whether to cancel the concealment for all ranges or only a part of the range can also be set in advance. Whether or not to perform the release range by image analysis as described above, and a deciphering rule that shows details of the deactivation conditions, a deciphering rule that releases the secrecy for the photo area and does not decipher the character area, a name or specific If an arbitrary rule is set, such as a secret release rule that keeps the character string secret and other characters secret, the secret is released according to the setting.

  In the display system 3, the concealment unit 5, the determination unit 6, and the concealment release unit 7 may be provided in the mobile terminal 10, may be provided in the display device 20, or may be provided in the mobile terminal 10 and the display device 20. There may be a variety of mounting formats that may be provided in a distributed manner.

  Hereinafter, two typical mounting formats will be specifically described.

<First mounting format>
FIG. 3 shows the configuration and schematic operation flow in the first mounting form of the display system 3 of the present invention. In FIG. 3, only the concealment unit 5, the determination unit 6, the concealment release unit 7, and the selection unit 23 are described, and the other parts follow the configuration of FIG. 2.

  In the first mounting format, the concealment unit 5, the determination unit 6, the concealment release unit 7, and the selection unit 23 are all included in the display device 20. Therefore, the display device 20 performs determination of whether or not to conceal data, concealment processing of data, acceptance of selection of whether or not to cancel concealment, and processing of canceling concealment.

  The operation flow of the display system 3 in the first mounting format will be described with reference to the schematic sequence diagram shown in the lower part of FIG. 3 and FIG.

  When the portable terminal 10 receives a selection operation and a transfer instruction for one or a plurality of transfer target data from the user (FIG. 3: step S101), the mobile terminal 10 transmits the data selected as the transfer target to the display device 20 (FIG. 3: Step S102, FIG. 4: P1).

  When receiving data from the mobile terminal 10 (FIG. 3: step S201), the display device 20 determines whether to conceal each data based on the concealment rule (FIG. 3: step S202). If it is determined that the data is to be concealed, the data is concealed (FIG. 3: step S203), and the data is displayed on the display unit 22 of the display device 20 in a concealed form (FIG. 3: step S204, FIG. 4: P2). Data that is determined not to be concealed is displayed in a normal form in which the content is not concealed.

  After that, the display device 20 selects whether to release the confidentiality of each data displayed in the confidential form, that is, whether to change the display form of the data displayed in the confidential form to the normal form. Is selected from the user (FIG. 3: Step S205, FIG. 4: P3).

  Then, in accordance with this selection result, the secrecy cancellation process is performed (FIG. 3: step S206), and the display is updated (FIG. 3: step S207). Here, with respect to data that has been selected to not release the secrecy within a predetermined time after the start of the display in the concealed form, the display of the data, that is, the display in the concealed form is erased (FIG. 4: P4). . On the other hand, for data that has not yet been selected for not releasing the secrecy when a predetermined time has elapsed since the start of the display in the concealed form, the concealment is released and changed to the normal form display (FIG. 4: P5).

  As described above, the data transferred from the mobile terminal 10 to the display device 20 is determined whether or not it is necessary to conceal, and the data determined to be concealed is initially displayed in a concealed form and should be concealed. Even if data is transmitted by mistake, it is prevented that the content is immediately known to others. In addition, even in the confidential form, the data sender is concealed so that the contents of the data can be understood (guessed), so the data sender can see the data displayed in the confidential form, It is possible to determine whether or not to release the secrecy and to select whether or not to release the secrecy.

  Here, since the user of the mobile terminal 10 originally selects the data to be displayed on the display device 20 viewed by a plurality of people, most of the transferred data may be released from the secrecy. It is assumed that only a very small number of data that have been transferred in this way should not be unsecured. Therefore, in the display system 3, only the data that does not release the secrecy is deleted by receiving a selection operation, and the data for which the secrecy is released is automatically received after a certain time has elapsed from the start of display without receiving the selection operation. Release secrecy. As a result, the user only needs to select a very small number of data transmitted by mistake, and the operation burden on the user related to the selection is reduced.

  In the first implementation format, since all processes related to information concealment such as determination of concealment, concealment, and release of concealment are performed on the display device 20 side, the mobile terminal 10 may be general-purpose. In addition, since the selection operation related to the release of secrecy is received by the display device 20, the user selects whether to release the secrecy while viewing the data displayed on the display device 20 having a larger screen than the mobile terminal 10. It can be carried out.

  Further, if the display device 20 holds the data in a state before concealment received from the mobile terminal 10, the concealment can be easily released. Since the display device 20 can release the concealment only by processing within the own device, there is no need to receive data from the mobile terminal 10 again for the purpose of releasing the concealment, and the mobile terminal 10 and the display device 20 There is an advantage that the amount of communication during the period does not increase.

  FIG. 5 shows an example of the details of the processing in steps S202 and S203 of FIG.

  It is confirmed whether or not the number of viewers is set as a check item for the concealment rule (step S301). When the concealment rule regarding the number of viewers is set (step S301; Yes), the number of viewers of the display device 20 is detected (step S302). For example, a camera or sensor is provided on the display device 20 to check the number of viewers, or in conjunction with the scheduler, the number of viewers is determined based on information about participants in an event (such as a meeting) that is currently using the display device 20. Check.

  If the number of viewers is 2 or more (step S303; Yes), the process proceeds to step S304. When the number of viewers is 1 (step S303; No), the one viewer estimates that the current data is transmitted from the mobile terminal 10, determines that it is not necessary to conceal, and performs the concealment process. This process is terminated without performing the process. In addition, when the number of viewers is 1, it may be further configured to confirm whether or not the viewer is a transferer of the current data, and determine that it is not necessary to conceal only in the case of the transferer. .

  In step S304, it is confirmed whether or not the tag information of the data is set in the check item of the concealment rule. If the tag information of data is not set in the check item of the concealment rule (step S304; No), the process proceeds to step S307. If the tag information of the data is set in the check item of the concealment rule (step S304; Yes), the contents of the tag attached to the data are confirmed (step S305). For example, the necessity of concealment is determined from information indicating the concealment level included in the tag, the file extension, and the like.

  When it is determined that secrecy is necessary (step S306; Yes), the process proceeds to step S307. If it is determined that concealment is not necessary (step S306; No), the present process is terminated without performing the concealment process.

  In step S307, it is confirmed whether or not the determination based on the scheduler is set in the check item of the concealment rule. If linked to the scheduler is not set in the check item of the concealment rule (step S307; No), the process proceeds to step S310.

  If the check item of the concealment rule is set to be linked to the scheduler (step S307; Yes), the scheduler is checked (step S308), and the participant of the event (conference etc.) in which the current data is used The necessity of concealment is determined from the information of the concealment level and the information of the concealment level set in the conference itself. If concealment is necessary (step S309; Yes), the process proceeds to step S310. If concealment is not necessary (step S309; No), the present process is terminated without performing the concealment process.

  In step S310, the concealment process is performed on the corresponding data, and then this process ends. In step S310, for example, display data in a concealed form in which the data contents are concealed is generated.

  The check items of the concealment rule are not limited to those shown in FIG. 5, and the number and content thereof may be arbitrary.

  FIG. 6 shows details of processing in steps S205 and S206 of FIG. This process is performed for one piece of data when the one piece of data (target data) is displayed in a secret form. It is checked whether or not an erasure selection operation has been performed on the target data within a certain period of time after the display of the target data is started (steps S401 and S403). Note that “selection of erasure” is synonymous with “selection not to release confidentiality”.

  When the selection of erasure is received (step S401; Yes), the display of the target data in the confidential form is erased (step S402), and this process is terminated.

  When a certain period of time has passed without receiving deletion selection after starting to display the target data in the confidential form (step S403; Yes), the entire range of the target data is referred with reference to the confidentiality cancellation rule (step S404). It is determined whether to remove the concealment for only a part of the range.

  When releasing the concealment for the entire range (step S405; Yes), the concealment is canceled for the entire range of the target data, and the display form of the target data is changed to the normal form (step S406). The process ends. Specifically, the display of the target data in the secret form is deleted, the display data in the normal form in which the entire range of the target data is released is created, and the display data is displayed on the display unit 22.

  When deciphering only a part of the range (step S405; No), the display of the target data in the concealed form is changed to a display of the form in which the concealment of the corresponding part of the range is released ( Step S407), the process is terminated. Specifically, the display of the target data in a secret form is deleted, display data in which a part of the range is released in accordance with the set secret release rule is generated, and the display data is displayed on the display unit 22 To do.

<Second implementation format>
FIG. 7 shows a schematic flow of the configuration and operation of the second mounting form of the display system 3 of the present invention. In FIG. 7, only the concealment unit 5, the determination unit 6, the concealment release unit 7, and the selection unit 23 are illustrated, and the other parts follow the configuration of FIG. 2.

  In the second implementation format, the concealment unit 5, the determination unit 6, and the concealment release unit 7 are provided in the mobile terminal 10, and the display device 20 is provided with the selection unit 23.

  The operation flow of the display system 3 in the second mounting format will be described with reference to the schematic sequence diagram at the bottom of FIG. 7 and FIG.

  When the portable terminal 10 receives a selection operation and a transfer instruction for one or a plurality of data to be transferred from the user (FIG. 7: step S151), the mobile terminal 10 determines whether to conceal the data based on the concealment rule. (FIG. 7: Step S152). If it is determined to be concealed, concealment processing is performed on the data to generate display data in a concealed form (FIG. 7: step S153), and the display data in the concealed form is displayed on the display device 20. Transmit (FIG. 7: Step S154, FIG. 8: P21).

  When the display device 20 receives the display data from the mobile terminal 10 (FIG. 7: Step S251), the display data is displayed on the display unit 22 of the display device 20 (FIG. 7: Step S252, FIG. 8: P22). Thereby, initial display of data is performed in a secret form.

  Thereafter, the display device 20 selects whether or not to hide the data displayed in the confidential form, that is, whether to change the display form of the data displayed in the confidential form to the normal form. Is received from the user (FIG. 7: Step S253, FIG. 8: P23). And the result of this selection is transmitted with respect to the portable terminal 10 (FIG. 8: P24).

  The mobile terminal 10 receives the above selection result from the display device 20 (step S155), performs a cancellation process corresponding to the deprivation rule according to the received selection result, and releases all or a part of the confidentiality. Display data is generated (step S156). Then, together with an instruction to erase the display in the confidential form, the display data in the form in which the confidentiality is released is transmitted to the display device 20 (step S157).

  Specifically, the display device 20 accepts the selection of erasure (selection not to release the secrecy) of arbitrary data being displayed in the confidential form in step S252 of FIG. 7 and P23 of FIG. Information specifying the fact and the selected data is transmitted to the mobile terminal 10 (FIG. 8: P24). Receiving this, the mobile terminal 10 transmits an instruction to erase the display of the data in the confidential form to the display device 20 (FIG. 8: P25), and the display device 20 that has received the instruction displays the data in the confidential form. The display of the corresponding data is deleted (FIG. 8: P26).

  The mobile terminal 10 has not received a notification (FIG. 8: P24) indicating that the selection of erasure has been performed from the display device 20 until a certain time has elapsed since the display was started in the confidential form. When the predetermined time has elapsed, a display update instruction is transmitted (FIG. 8: P27). That is, the mobile terminal 10 creates display data that has been released from confidentiality (FIG. 7: Step S156), and updates the display in the confidential form to a display based on the display data and the display data to the display device 20. (FIG. 7: Step S157, FIG. 8: P27), and the display device 20 updates the display according to the update instruction and display data received from the mobile terminal 10 (FIG. 7: Steps S254, S255, FIG. 8: P28). .

  As described above, also in the second mounting format, when data is transferred from the mobile terminal 10 to the display device 20 and displayed, the necessity of confidentiality is determined. Since the data is displayed in the form, even if data that should be kept secret is transmitted by mistake, it is prevented that the contents are immediately known to others. In addition, even in the confidential form, the data sender is concealed so that the contents of the data can be understood (guessed), so the data sender can see the data displayed in the confidential form, It is possible to determine whether or not to release the secrecy and to select whether or not to release the secrecy.

  Since the display device 20 receives a selection operation related to the release of the concealment, the user can select whether to release the concealment while viewing the data displayed on the display device 20 having a larger screen than the mobile terminal 10. It can be performed.

  In the second implementation format, since processing such as determination of concealment, concealment, and release of concealment is performed on the mobile terminal 10 side, the processing load on the display device 20 can be reduced. Moreover, since the portable terminal 10 holds the data before concealment, it is possible to easily generate data from which the concealment is released. In particular, when the entire range of secrecy is to be released, the original data can be used as the data to which secrecy is released.

  Details of the processing related to concealment are the same as those shown in FIG.

  FIG. 9 shows details of the processing of steps S155 to S157 in FIG. This process is performed for one piece of data when the one piece of data (target data) is displayed in a secret form. It is checked whether or not an erasure selection operation has been performed on the target data within a certain time after the display of the target data in the confidential form is started (steps S501 and S503). Note that “selection of erasure” is synonymous with “selection not to release confidentiality”.

  When the selection of erasure is received (step S501; Yes), an instruction to erase the display of the target data in the confidential form is transmitted to the display device 20 (step S502), and this process is terminated.

  When a certain period of time has elapsed without receiving deletion selection after starting to display the target data in the confidential form (step S503; Yes), the entire range of the target data is referred to by referring to the confidentiality cancellation rule (step S504). It is determined whether to remove the concealment for only a part of the range.

  When the concealment is canceled for the entire range (step S505; Yes), display data in which the concealment is canceled for the entire range of the target data is created (step S506), and the display in the concealment form is displayed on the display data. An instruction to update to the display based on the display data and the display data are transmitted to the display device 20 (step S508), and the process is terminated.

  When deciphering is canceled only for a part of the range (step S505; No), display data is released for deciphering only a part of the target data according to the set deciphering rule (step S505). S507), an instruction to update the display in the confidential form to a display based on the display data and the display data are transmitted to the display device 20 (step S508), and this process is terminated.

  The embodiment of the present invention has been described with reference to the drawings. However, the specific configuration is not limited to that shown in the embodiment, and there are changes and additions within the scope of the present invention. Are also included in the present invention.

  In the embodiment, the first mounting format and the second mounting format are exemplified, but the arrangement of the concealment unit 5, the determination unit 6, the concealment release unit 7, and the selection unit 23 is not limited to this. For example, the mobile terminal 10 may be configured to have all the functions of the concealment unit 5, the determination unit 6, the concealment release unit 7, and the selection unit 23. In this case, the user looks at each data displayed in the secret form on the display device 20 to check whether there is data that has been transmitted in error. Is selected on the mobile terminal 10. The portable terminal 10 may be configured to transmit an instruction to delete the selected data to the display device 20.

  Alternatively, the mobile terminal 10 is provided with a camera, and an image of the display device 20 captured by the camera is displayed on the display unit 12 of the mobile terminal 10 in real time, and the video of the display device 20 displayed on the display unit 12 of the mobile terminal 10 is displayed. In this case, it may be configured to receive selection of data for which secrecy is released or data that is not released. In this case, in the release of secrecy, display data in a form in which secrecy is released may be transmitted from the mobile terminal 10 to the display device 20. In this configuration, since the functions of the concealment unit 5, the determination unit 6, the concealment release unit 7, and the selection unit 23 are all integrated on the mobile terminal 10 side, the display device 20 may be a general-purpose display device.

  Further, the mobile terminal 10 may include the concealment unit 5 and the determination unit 6, and the display device 20 may include the concealment release unit 7 and the selection unit 23. For example, when transmitting the display data in the secret form from the mobile terminal 10 to the display device 20, the display data in the normal form is also transmitted at the same time, and the secret release unit 7 of the display device 20 receives the display data from the mobile terminal 10. It is possible to adopt a configuration in which secrecy is released using display data in the normal form that is held.

  In the embodiment, the case where the mobile terminal 10 and the display device 20 are close to each other has been described as an example. However, the display device 20 is provided in the vicinity of the mobile terminal 10 and in a remote place, and the same screen is displayed on them. The system configuration may be used.

  For example, the present invention is also applied to a case where a conference room in Osaka and a conference room in Tokyo are connected via a network. That is, when a user in a conference room in Osaka transfers data from his / her mobile terminal 10 to the display device 20 in the conference room in Osaka, the data is initially concealed to each display device 20 in the conference room in Osaka and Tokyo. Displayed in form. Thereafter, when the user selects to cancel the concealment on the display device 20 in the Osaka meeting room, the display is updated in each display device 20 in the Osaka and Tokyo meeting rooms according to the selection result. In this configuration, if there is a concealment rule regarding the number of viewers, if there is one user who is prohibited from sharing data in either Osaka or Tokyo meeting rooms, it is determined that concealment is necessary. The initial display may be performed in a secret form.

  In the embodiment, the display of data that does not receive the selection that does not release the secrecy after a certain period of time after displaying in the secrecy mode is automatically deleted. For example, the selection of the data that does not release the secrecy It is also possible to receive an end operation from the user indicating that the data has ended, and release the secrecy for data that has not received the selection to release the secrecy when the end operation is received.

  Moreover, it may replace with receiving the selection of the data which does not cancel | release confidentiality among the data displayed by the confidential form, and the structure which receives the selection of the data which cancel | releases confidentiality from a user may be sufficient. In this case, for example, data that has not been selected for cancellation of confidentiality even after a certain period of time has elapsed after being displayed in a confidential form, or data that has not been selected at the time of receiving a selection end operation is deleted. What is necessary is just to comprise.

  The concealment release rule for releasing the concealment for a part of the range is not limited to a rule that keeps the concealment of only the person's face and releases the concealment for the other part. For example, in image data in which a photo area and a character area are mixed, the character area is kept secret and the photo area is kept secret. Alternatively, certain words such as a person's name are kept secret and other characters are kept secret. It may be a secret release rule such as releasing

  The difficulty in visual recognition in the concealed form may be increased at first, and the difficulty in visual recognition may be gradually reduced as time passes. For example, the mosaic state is changed with the passage of time, for example, when difficulty in visual recognition is obtained by a mosaic pattern. Even if the person who sent the data does not know the contents in the initial display in the concealment form with high visibility, the difficulty of visual recognition gradually decreases. Judgment can be made.

  In the embodiment, the determination unit 6 determines whether it is necessary to conceal, but it may be configured to conceal all data uniformly.

  In the embodiment, the case where the display unit 22 of the display device 20 is larger than the display unit 12 of the mobile terminal 10 has been exemplified. .

  A terminal that transmits data to the display device 20 is not limited to a portable terminal.

DESCRIPTION OF SYMBOLS 3 ... Display system 5 ... Concealment part 6 ... Judgment part 7 ... Concealment cancellation | release part 10 ... Portable terminal 11 ... Control part 12 ... Display part 13 ... Data storage part 14 ... Operation input part 15 ... Communication part 20 ... Display apparatus 21 ... Control unit 22 ... display unit 23 ... selection unit 24 ... communication unit

Claims (20)

A display system having a terminal and a display device that can be viewed by a plurality of people displaying data transferred from the terminal,
A concealment unit that changes a display form when data transferred from the terminal to the display apparatus is first displayed on the display apparatus, to be a concealment form in which the content of the data is concealed;
A selection unit that receives a selection from the user as to whether or not to change the display form of the data displayed in the concealment form on the display device to a normal form in which the content of the data is not concealed;
A concealment release unit that changes the display form of the data selected to be changed by the selection unit to the normal form;
I have a,
The display system characterized in that the concealment release unit changes the data displayed in the concealment form when a predetermined time has elapsed after being displayed on the display device in the concealment form . A determination unit for determining whether the data is confidential;
When the determination unit determines that the data needs to be concealed, the concealment unit changes the display form when the data is first displayed on the display device to the concealment form, and the determination unit displays the data 2. The display system according to claim 1, wherein, when it is determined that secrecy is unnecessary, the display form when the data is first displayed on the display device is the normal form. The display system according to claim 2, wherein the determination unit determines that the data is not required to be concealed when only a user who has transferred data from the terminal is a viewer of the display device. The display system according to any one of claims 1 to 3, wherein the selection unit is provided in the display device. The selection unit accepts the selection of one piece of data displayed on the display device in the secret form only from a user of a terminal that is a transfer source of the one piece of data. The display system according to any one of the above. The display system according to claim 1, further comprising: an erasing unit that erases the display of the data selected not to be changed by the selection unit according to the secret form. The said concealment cancellation | release part changes to the display in the said normal form only about the one part range of the data displayed by the said concealment form. The one of Claim 1 thru | or 6 characterized by the above-mentioned. Display system. A receiving unit for receiving data to be displayed from the terminal;
A display section that can be viewed by multiple people,
A concealment unit that changes a display form when data received from the terminal by the reception unit is first displayed on the display unit to a concealment form in which the content of the data is concealed;
A selection unit that receives a selection from the user as to whether or not to change the display form of the data displayed in the secret form on the display unit to a normal form in which the content of the data is not concealed;
A concealment release unit that changes the display form of the data selected to be changed by the selection unit to the normal form;
I have a,
The display device according to claim 1, wherein the concealment release unit changes the data displayed in the concealment mode when a predetermined time has elapsed after being displayed on the display unit in the concealment mode . A determination unit for determining whether the data is confidential;
When the determination unit determines that the data needs to be concealed, the concealment unit changes the display form when the data is first displayed on the display unit to the concealment form, and the determination unit displays the data The display device according to claim 8 , wherein, when it is determined that secrecy is unnecessary, the display form when the data is first displayed on the display device is set to the normal form. The display device according to claim 9 , wherein the determination unit determines that the data is not required to be concealed when the viewer of the display unit is only a user who has transferred data from the terminal. The selection unit, the secret mode by the selection of one data displayed on the display unit, according to claim 8 to 10, characterized in that accepted only from a user of the transfer source terminal of the one of the data The display device according to any one of the above. Display device according to any one of claims 8 to 11, further comprising an erasing unit for erasing the display by the concealment form of data not to the change in the selected portion is selected. The display according to any one of claims 8 to 12 , wherein the concealment release unit changes the display to the normal form only for a partial range of the data displayed in the concealment form. apparatus. An initial display step of first displaying the data transferred from the terminal to a display device that can be viewed by a plurality of people in a concealed form in which the display device conceals the content of the data;
A selection step of receiving from the user a selection as to whether or not to change the display form of the data displayed in the concealment form on the display device to a normal form in which the content of the data is not concealed;
A concealment release step of changing the display form of the data selected to be changed in the selection step to the normal form ;
A second concealment release step of changing the display form of the data displayed in the concealment form to the normal form when a predetermined time has elapsed since the display in the concealment form on the display device;
The transfer data display method characterized by having. A determination step of determining whether the data is confidential or not,
In the initial display step, the data is displayed in the confidential form when it is determined that the confidentiality is required in the determining step, and the data is displayed in the normal form when the confidentiality is determined not necessary in the determining step. The transfer data display method according to claim 14 , wherein display is performed. The transfer data display method according to claim 15 , wherein, in the determination step, if the viewer of the display device is only a user who transferred data from a terminal, it is determined that the data is not required to be concealed. The transfer data display method according to any one of claims 14 to 16 , wherein the selection is received by a selection unit provided in the display device. In the selection step, wherein the selection for one of data displayed on the display device in confidential form, claims 14 to 17, characterized in that accepted only from a user of the transfer source terminal of the one of the data The transfer data display method according to any one of the above. The transfer data display method according to any one of claims 14 to 18 , further comprising an erasing step of erasing the display in the secret form of the data selected not to be changed in the selection step. . The transfer according to any one of claims 14 to 19 , wherein, in the deciphering step, only a partial range of the data displayed in the concealment form is changed to the display in the normal form. Data display method.