JP6098134B2 - Server apparatus, program, and image display system - Google Patents

Description

  The present invention relates to a server device, a program, and an image display system.

  In recent years, it has become common for companies and the like to hold a meeting while projecting an image by connecting a personal computer (PC) to a projector. In addition, a projector that calls and projects a projectable file stored in a mounted USB memory is also conventionally known (see, for example, Patent Document 1).

  However, in order to project an image, a conventional projector has to connect a PC storing an image or attach a USB memory. Therefore, when carrying out the projection by carrying the projector, it is necessary to carry the PC or USB memory storing the image together, which is inconvenient.

  An object of the present invention is to provide a server device, a program, and an image display system that improve the convenience of an image display device.

In order to solve the above problem, the server device according to claim 1 is a server device that can be connected to one or more devices that provide content and an image display device that displays the content via a network. Index information processing means for providing the image display device with index information for causing the image display device to display a list screen of information on the content based on content provided from the one or more devices; Image data processing means for providing the image display device with image data for displaying the content display screen on the image display device using the content information selected by the operator from the list screen; Including device access authority information and identification information of the image display device permitted to display the content. Based on the setting information, the identification information of the image display device that has requested acquisition of the content using the access authority information is the identification information of the image display device that is permitted to display the content by the device authentication setting information. when registered as the possess an index information processing means and the image data processing processing device authentication means for carrying out means, said device authentication means, the contents in association with the access right information to the content When the identification information of the image display device permitted to display the image is set in the device authentication setting information, a setting for valid / invalid of device authentication using the device authentication setting information is received .

  According to one aspect of the present invention, it is possible to provide a server device, a program, and an image display system that improve the convenience of an image display device.

It is a block diagram of an example of a projection system. It is a hardware block diagram of an example of a projection server. It is the schematic showing an example of the process sequence with a projection server and a projector. It is a software block diagram of an example of a projection server. It is a block diagram of an example of the apparatus authentication setting information by an access number. It is a block diagram of an example of file information. It is a block diagram of an example of a projector registration ticket. It is an image figure of an example of a portal screen. It is an image figure of an example of the apparatus authentication setting screen by an access number. It is a flowchart showing an example of the processing procedure of a dispatcher part and a controller part. It is a block diagram of the other example of the apparatus authentication setting information by an access number. It is an image figure of the other example of a portal screen. It is an image figure of the other example of the apparatus authentication setting screen by an access number. It is the flowchart showing an example of the process sequence which imports the apparatus authentication setting by another access number. It is an image figure for demonstrating the process which imports the apparatus authentication setting of another access number. It is a block diagram of the other example of the apparatus authentication setting information by an access number. It is the flowchart showing an example of the process sequence which fixes the apparatus authentication setting by an access number. It is an image figure of the other example of the apparatus authentication setting screen by an access number. It is a flowchart showing the other example of the process sequence which fixes the apparatus authentication setting by an access number. It is an image figure of the other example of a portal screen. It is a flowchart showing an example of the file upload process. It is an image figure of the other example of the apparatus authentication setting screen by an access number. It is a block diagram of the other example of the apparatus authentication setting information by an access number. 10 is a flowchart illustrating another example of file upload processing. 10 is a flowchart illustrating another example of file upload processing. 6 is a flowchart illustrating an example of a file transmission process. It is a flowchart of an example of the process which filters file information. It is an image figure of the other example of the apparatus authentication setting screen by an access number. It is a flowchart of an example of the projector registration process using a one-time password. It is a flowchart showing the other example of the processing procedure of a dispatcher part and a controller part. It is a block diagram of an example of the index which showed apparatus ID of the projector. It is an image figure of an example of a file list screen. It is a flowchart showing the other example of the processing procedure of a dispatcher part and a controller part. It is a flowchart showing an example of the process sequence of a device authentication controller. It is a block diagram of an example of the index of the screen which displays apparatus ID of a projector. It is an image figure of an example of a file list screen. It is an image figure of an example of the notification screen projected when "projection permission is required.jpg" is selected. It is a flowchart of an example of a production | generation process of a projector registration ticket. 10 is a flowchart of an example of a process for generating binary data “projection permission is required.jpg”. It is explanatory drawing which shows an example of a base image and a notification wording. It is explanatory drawing which shows the other example of a base image and a notification wording. It is a flowchart showing the other example of the processing procedure of a dispatcher part and a controller part.

Hereinafter, embodiments of the present invention will be described in detail.
[First Embodiment]
<System configuration>
FIG. 1 is a configuration diagram of an example of a projection system. A projection system 1 shown in FIG. 1 includes a projection server 10, an external Web service server 11, a storage server 12, a PC 13, an image input / output device 14, a projector 15, a firewall (FW) 16, and a router 17. And networks 18-20.

  The projection server 10 and the external Web service server 11 are connected via a network 18 such as the Internet. For example, the projection server 10 and the external Web service server 11 can take the form of a so-called cloud. The external Web service server 11 is an example of a device that provides a Web service. The external web service server 11 provides web services such as storage services and application services as, for example, cloud services. The external Web service server 11 provides content to the projection server 10.

  A network 19 such as a LAN is connected to the network 18 via the FW 16. A storage server 12, a PC 13, and an image input / output device 14 are connected to the network 19. The storage server 12, the PC 13, and the image input / output device 14 provide content to the projection server 10. The image input / output device 14 is, for example, a multifunction machine, a scanner, a digital camera, or the like.

  A network 20 such as a LAN is connected to the network 18 via a router 17. A projector 15 is connected to the network 20. The projector 15 is equipped with a client function that cooperates with the projection server 10. The projector 15 uses the client function to acquire content from the projection server 10 as described later and project it. The networks 19 and 20 may be either wired communication / wireless communication or may include both.

  The projector 15 in this embodiment is an example of an image display device. The projection system 1 is an example of an image display system. Projection by the projector 15 is an example of display by an image display device. Furthermore, the external Web service server 11, the storage server 12, the PC 13, and the image input / output device 14 are examples of devices that provide content to the image display device. Note that the projection server 10 and the external Web service server 11 may be realized by software or services that operate on one or more computers.

<Hardware configuration>
FIG. 2 is a hardware configuration diagram of an example of the projection server. The projection server 10 shown in FIG. 2 has a configuration in which an input device 101, a display device 102, an external I / F 103, a RAM 104, a ROM 105, a CPU 106, a communication I / F 107, an HDD 108, and the like are connected to each other via a bus B. is there.

  The input device 101 includes a keyboard and a mouse, and is used to input each operation signal to the projection server 10. The display device 102 includes a display and the like, and displays management information and logs of the projection server 10.

  The communication I / F 107 is an interface that connects the projection server 10 to the network 18. Thereby, the projection server 10 can perform data communication with the external Web service server 11, the storage server 12, the PC 13, the image input / output device 14, and the projector 15 via the communication I / F 107.

  The HDD 108 is a non-volatile storage device that stores programs and data. The stored programs and data include an OS that is basic software for controlling the entire projection server 10 and application software that provides various functions on the OS. The HDD 108 manages the stored programs and data by a predetermined file system and / or DB.

  The external I / F 103 is an interface with an external device. The external device includes a recording medium 103a. Thereby, the projection server 10 can read and / or write the recording medium 103 a via the external I / F 103. The recording medium 103a includes a flexible disk, CD, DVD, SD memory card, USB memory, and the like.

  The ROM 105 is a nonvolatile semiconductor memory (storage device) that can retain programs and data even when the power is turned off. The ROM 105 stores programs and data such as BIOS, OS settings, and network settings that are executed when the projection server 10 is activated. The RAM 104 is a volatile semiconductor memory (storage device) that temporarily stores programs and data.

  The CPU 106 is an arithmetic device that realizes control and functions of the entire projection server 10 by reading a program and data from a storage device such as the ROM 105 and the HDD 108 onto the RAM 104 and executing processing.

  The projection server 10 can realize various processes as will be described later with the above hardware configuration. Instead of these hardware, it may be realized by a virtual machine on IaaS (Infrastructure as a service) which has been popular in recent years.

<Processing by Projection Server 10 and Projector 15>
FIG. 3 is a schematic diagram illustrating an example of a processing procedure between the projection server and the projector. In the present embodiment, an example in which access restriction based on an access number is set as an example of access restriction will be described. However, access restriction using an IC card or the like may be selected.

  The operator of the projector 15 gives a start instruction (projection instruction of the file list screen) to the projector 15, and then operates the remote controller 25, for example, to input an access number (pass code) in step S1.

  In step S <b> 2, the projector 15 acquires an index file from the projection server 10. The index file acquired from the projection server 10 includes content file information associated with the access number.

  The projector 15 generates and projects a file list screen from the index file acquired from the projection server 10. Details of the file list screen will be described later. In step S3, the operator of the projector 15 operates the remote controller 25 to select a content file to be projected from the file list screen.

  In step S <b> 4, the projector 15 acquires a content file designated by the operator from the projection server 10. The projector 15 generates and projects a file projection screen from the acquired content file.

  As shown in FIG. 3, the operator inputs the access number to cause the projector 15 to acquire the content file stored in the external Web service server 11 and project the file projection screen generated from the content file. be able to.

  However, when a malicious third party knows a passcode for canceling access restrictions such as an access number, or when a malicious third party obtains an IC card for canceling an access code, the projection system 1 There was a problem that content was illegally obtained by a malicious third party.

  Therefore, in the projection system 1 of the present embodiment, a malicious third party is notified of a passcode for canceling access restrictions such as an access number, or an IC card for canceling an access code is transmitted to a malicious third party. Even if it is obtained, it prevents the acquisition of unauthorized content from a malicious third party as follows.

  In the projection system 1 of the present embodiment, by designating a projector 15 that can acquire content in advance, a passcode for canceling access restrictions such as an access number is known to a malicious third party, or the access code Even if an IC card for canceling is obtained by a malicious third party, contents other than the projector 15 designated in advance cannot be obtained.

<Software configuration>
FIG. 4 is a software configuration diagram of an example of the projection server. By executing the program, the projection server 10 executes an HTTP server unit 31, a dispatcher unit 32, a view unit 33, a controller unit 34, an HTTP client unit 35, a format conversion unit 36, a user management unit 37, a file management unit 38, and projector registration. A ticket management unit 40 is realized.

  The controller unit 34 includes a route controller 44, an internal storage service controller 45, an external service controller 46, and a device authentication controller 47. The device authentication controller 47 includes a setting unit 51, a registration ticket generation unit 52, a projection screen generation unit 53, and an access control unit 54.

  The HTTP server unit 31 performs HTTP (S) communication with the projector 15 and a browser (not shown). The browser is mounted on, for example, a PC operated by the operator. The HTTP client unit 35 performs HTTP (S) communication with the external Web service server 11, the storage server 12, the PC 13, and the image input / output device 14.

  In the following, both the meanings of the web service in which the external web service server 11 provides content to the projection server 10 and the web service in which the storage server 12, the PC 13, and the image input / output device 14 provide content to the projection server 10 are included. “External service” is used as a phrase.

  The user management unit 37 manages user information, external service authentication information, device authentication setting information based on access numbers, and the like. The file management unit 38 manages files uploaded to the internal storage service, files converted as described later, temporary files downloaded from the external Web service server 11, the storage server 12, the PC 13, or the image input / output device 14. . The file managed by the file management unit 38 includes an index file and a content file which will be described later.

  An index file is an example of index information. The index file is a file that includes information on content files that can be provided to the projector 15 and includes content file list information. More specifically, the index file includes information on content files and subdirectories that can be provided to the projector 15, as will be described later. The content file is an example of image data. The content file is a still image, a moving image file, or the like.

  The HTTP server unit 31 receives an HTTP request from an HTTP client unit (not shown) of the projector 15 or a browser (not shown). The HTTP server unit 31 interprets the received HTTP request and transmits necessary information (URL) to the dispatcher unit 32. The dispatcher unit 32 distributes the received URL to each controller of the controller unit 34 as will be described later.

  The controller unit 34 performs processing such as index file acquisition and content file acquisition, which will be described later, by the route controller 44, the internal storage service controller 45, and the external service controller 46 according to the URL distributed by the dispatcher unit 32. Further, the controller unit 34 causes the format conversion unit 36 to convert the format of the index file or the content file into a format that can be projected by the projector 15 as necessary.

  The device authentication controller 47 of the controller unit 34 implements a function for performing device authentication setting and a function for performing access control for a request from the projector 15. As will be described later, the device authentication controller 47 uses the setting unit 51, the registration ticket generation unit 52, the projection screen generation unit 53, and the access control unit 54 to access the function for setting device authentication and the request from the projector 15. The function to perform control is realized.

  The controller unit 34 transmits information to be displayed on the HTTP client unit (not shown) of the browser (not shown) to the view unit 33. The view unit 33 generates an HTML file and transmits it to the HTTP server unit 31. In addition, the controller unit 34 transmits an index file and a content file to be transmitted to the HTTP client unit (not shown) of the projector 15 to the HTTP server unit 31.

  In addition, the controller unit 34 stores a content file uploaded from an HTTP client unit (not shown) of a browser (not shown) in a storage (internal storage) in the projection server 10.

  The HTTP server unit 31 transmits the received index file, content file, and HTML file as HTTP responses to the projector 15 and an HTTP client unit (not shown) of a browser (not shown). The projector registration ticket management unit 40 manages a projector registration ticket described later.

  FIG. 5 is a configuration diagram of an example of device authentication setting information based on an access number. The device authentication setting information based on the access number in FIG. 5 includes an access number, device authentication setting, and an ID of a projector that permits projection. Note that the device authentication setting is not essential. In the example of FIG. 5, the ID (device ID) of the projector that permits projection is recorded in association with the access number.

  For example, in the example of FIG. 5, the content of the access amber “12345” is permitted to be projected on the projector 15 with the device ID “ABC0123456”. In the device authentication setting, the validity / invalidity of the device authentication setting that permits a specific projector 15 to project is set. The IDs of the projectors that permit projection are set by listing the device IDs of the projectors 15 that permit projection when the device authentication setting is valid.

  FIG. 6 is a configuration diagram of an example of file information. The file information in FIG. 6 includes file name, access number, registration date and time, projection restriction, expiration date start and end, multi-page identification, and file path. The projection limitation represents a one-time projection, a limited-time projection, or the like. The expiration date starts and ends when the projection limit is only one projection, for example, one week from the registration date and time, and when the projection limit is the period limited projection, the date and time specified at the time of uploading. Multipage identification indicates whether a file is multipage. The file path represents a file path. For multi-page files, the file path is a directory path.

  FIG. 7 is a configuration diagram of an example of a projector registration ticket. The projector registration ticket is used when the projector 15 is registered in “ID of the projector that permits projection” of the device authentication setting information based on the access number.

  The projector registration ticket includes a projector ID, a registration one-time password, and an expiration date of the one-time password. As the projector ID, the device ID of the projector 15 to be registered is set. The registration one-time password is a password necessary for registering the projector 15. Note that the device authentication setting information based on the access number in FIG. 5 is associated with one or more projector registration tickets.

<Process flow>
FIG. 8 is an image diagram of an example of a portal screen. FIG. 8 shows a portal screen 1000 before login. When the user information has been registered, the operator can log in by inputting the user ID and password in the column 1001 and pressing the login button 1003. In the present embodiment, the case of no login is targeted, and description of user information registration and login processing using a user ID and password is omitted.

  In the case of no login, which is a target of the present embodiment, the operator inputs the issued access number in the column 1002 and presses the login button 1003, whereby the device authentication setting screen by the access number as shown in FIG. Can be transitioned to.

  FIG. 9 is an image diagram of an example of a device authentication setting screen based on the access number. The device authentication setting screen 1010 based on the access number is generated by the device authentication controller 47 of the projection server 10. The device authentication setting screen 1010 based on the access number may be displayed by the projector 15 that has accessed the projection server 10 or may be displayed on a terminal such as the PC 13 operated by the operator.

  The device authentication setting screen 1010 by access number includes the issued access number 1011 input in the column 1002 of the portal screen 1000 and the file name 1012 of the uploaded file associated with the access number 1011. On the device authentication setting screen 1010 by access number, a device authentication setting value (for example, valid / invalid) 1013 of the device authentication setting information by access number is displayed.

  Note that when the valid button 1014 included in the device authentication setting screen 1010 by access number is pressed, the device authentication setting value of the device authentication setting information by the access number becomes valid. Also, by pressing an invalid button 1015 included in the device authentication setting screen 1010 by access number, the device authentication setting value of the device authentication setting information by access number becomes invalid.

  A column 1016 included in the device authentication setting screen 1010 by access number is an input column for inputting an ID of a projector that the operator permits to project. When the operator presses the registration button 1017, the projector ID (device ID) input in the column 1016 is registered in the device authentication setting information based on the access number as the ID of the projector that permits projection.

  FIG. 10 is a flowchart showing an example of processing procedures of the dispatcher unit and the controller unit. In step S <b> 11, the dispatcher unit 32 receives a URL from the HTTP server unit 31.

  In step S <b> 12, the dispatcher unit 32 retrieves device authentication setting information based on the access number of the user management unit 37 from the access number {n} included in the received URL. In step S13, the dispatcher unit 32 determines whether or not the device authentication setting included in the device authentication setting information based on the access number is valid.

  If the device authentication setting is valid, the dispatcher unit 32 determines in step S14 whether or not the device ID of the projector 15 is included in the request header. If it is determined that the device ID of the projector 15 is included in the request header, the dispatcher unit 32 proceeds to step S15, and acquires the device ID of the projector 15 from the request header.

  If it is determined in step S14 that the device ID of the projector 15 is not included in the request header, the dispatcher unit 32 proceeds to step S19 and notifies the projector 15 of an error. In step S16, the dispatcher unit 32 determines whether or not the device ID of the projector 15 acquired (requested) in step S15 is included in the “ID of the projector that permits projection” of the device authentication setting information based on the access number. Determine.

  If it is determined that the URL is included, the dispatcher unit 32 proceeds to step S17 to determine whether the received URL is a route. If the received URL is a route, in step S18, the dispatcher unit 32 selects the route controller 44 and distributes the URL. If the received URL is not a route, the dispatcher unit 32 performs the process of step S20.

  In step S20, the dispatcher unit 32 selects the internal storage service controller 45 or the external service controller 46 associated with the information indicating the service based on the information indicating the service (local, ext1, etc.) included in the received URL. And assign URLs.

  If the device authentication setting is invalid in step S13, the dispatcher unit 32 skips steps S14 to S16 and proceeds to step S17. If it is determined in step S16 that the acquired device ID of the projector 15 is not included in the “ID of the projector that permits projection” of the device authentication setting information based on the access number, the dispatcher unit 32 proceeds to step S19, and the projector 15 Notify error to.

  FIG. 11 is a configuration diagram of another example of device authentication setting information based on an access number. The device authentication setting information based on the access number in FIG. 11 includes an access number and device authentication setting as items. Note that the device authentication setting is not essential. The device authentication setting information based on the access number in FIG. 11 sets an initial value so that the value of the device authentication setting is valid and the ID of the projector that permits projection is not used.

  In the example of FIG. 5, after uploading a file and performing device authentication setting by access number, the file cannot be projected using an appropriate projector 15. In the device authentication setting information based on the access number in FIG. 11, the file cannot be projected using the appropriate projector 15 even after the file is uploaded and the device authentication setting based on the access number is performed.

  FIG. 12 is an image diagram of another example of the portal screen. The portal screen 1020 in FIG. 12 is obtained by adding a column 1021 in which device authentication setting validity / invalidity can be set to the portal screen 1000 in FIG. For example, the operator can request uploading of a file by selecting a file and projection restrictions, setting device authentication settings, and pressing an upload button.

  If the file is uploaded with the device authentication setting disabled, the device authentication setting is set to invalid when the device authentication setting information by the access number in FIG. 5 is registered. When the file is uploaded with the device authentication setting enabled, the device authentication setting is enabled when the device authentication setting information by the access number in FIG. 5 is registered.

  FIG. 13 is an image diagram of another example of the device authentication setting screen based on the access number. The device authentication setting screen 1030 by access number in FIG. 13 is obtained by adding a function for importing device authentication settings by another access number to the device authentication setting screen 1010 by access number in FIG.

  The device authentication setting screen 1030 by the access number in FIG. 13 can utilize the function of importing the device authentication setting by another access number, for example, when it is desired to omit the trouble of registering the same device authentication setting. For example, the operator imports the device authentication setting of another access number by inputting another access number for importing the device authentication setting in the field 1031 of the device authentication setting screen 1030 by the access number and pressing the import button 1032. it can.

  FIG. 14 is a flowchart showing an example of a processing procedure for importing device authentication settings by other access numbers. When the operator presses the import button 1032 on the device authentication setting screen 1030 by the access number, the other access number input in the column 1031 is notified from the dispatcher unit 32 to the device authentication controller 47.

  In step S31, the setting unit 51 of the device authentication controller 47 uses the access number registered in the user management unit 37 using the other access number (hereinafter referred to as input) input in the column 1031 as a key. Search for. That is, the setting unit 51 searches for a record having the same access number as the input from the device authentication setting information based on the access number registered in the user management unit 37.

  In step S <b> 32, the setting unit 51 determines whether a record with the same access number as the input exists in the user management unit 37. If present, in step S33, the setting unit 51 extracts the device authentication setting value of the record having the same access number as the input searched in step S31 and the ID value of the projector that permits projection. The setting unit 51 registers the device authentication setting of the access number (issued access number displayed in the upper part of FIG. 13) using the extracted device authentication setting value and the ID value of the projector that permits projection. it can.

  On the other hand, if the record of the same access number as the input does not exist in the user management unit 37, the setting unit 51 confirms that the device authentication setting of another access number could not be imported in step S34. Notification is displayed on the projector 15.

  FIG. 15 is an image diagram for explaining processing for importing device authentication settings of other access numbers. For example, FIGS. 15A to 15C are examples of device authentication setting information based on access numbers. FIG. 15A is overwritten as shown in FIG. 15C when the device authentication setting information with the access number of FIG. 15B is imported.

  FIG. 16 is a configuration diagram of another example of device authentication setting information based on an access number. The device authentication setting information based on the access number in FIG. 16 includes an access number, a device authentication setting, a device authentication lock, and an ID of a projector that permits projection. The device authentication setting information based on the access number in FIG. 16 is obtained by adding the item “device authentication lock” to the item in FIG.

  The device authentication setting information based on the access number shown in FIG. 16 corresponds to a case where the device authentication setting based on the access number once set is desired to be fixed (for example, a case where it is not desired to add the ID of the projector that permits projection unnecessarily). . For example, the device authentication setting information based on the access number in FIG. 16 can be changed when the value of “device authentication lock” is invalid, and cannot be changed when the value is valid.

  FIG. 17 is a flowchart showing an example of a processing procedure for fixing the device authentication setting based on the access number. For example, when the operator requests registration of the ID of a projector that permits projection, the setting unit 51 of the device authentication controller 47 sets device authentication using the access number registered in the user management unit 37 using the access number as a key in step S41. Search for information. Then, the setting unit 51 determines whether or not the “device authentication lock” value of the device authentication setting information based on the searched access number is valid.

  If the value of “device authentication lock” is not valid, the setting unit 51 proceeds to step S42 and updates the device authentication setting information based on the access number in accordance with a request from the operator. In step S43, the setting unit 51 determines whether or not “ID of a projector that permits projection” has been added.

  If “ID of the projector that permits projection” is added, the setting unit 51 proceeds to step S44, and validates the value of “device authentication lock” of the device authentication setting information by the access number. If the value of “device authentication lock” is valid in step S41, the setting unit 51 proceeds to step S45 to display on the PC 13 or projector 15 operated by the operator that the device authentication setting based on the access number cannot be changed. To notify.

  In the process of the flowchart of FIG. 17, when “ID of a projector that permits projection” of the device authentication setting information based on the access number is added, the value of “device authentication lock” is automatically enabled.

  FIG. 18 is an image diagram of another example of the device authentication setting screen based on the access number. The device authentication setting screen 1040 based on the access number in FIG. 18 has added a function for locking the device authentication setting (a function for setting the device authentication lock value to be valid / invalid) to the device authentication setting screen 1030 based on the access number in FIG. Is.

  For example, the operator can set the “device authentication lock” value of the device authentication setting information based on the access number to be valid by pressing the valid button 1041 on the device authentication setting screen 1040 based on the access number. Further, the operator can set the “device authentication lock” value of the device authentication setting information based on the access number to be invalid by pressing an invalid button 1042 on the device authentication setting screen 1040 based on the access number.

  Note that it is also conceivable that the device authentication lock once set to be valid can be set to be invalid. In this case, the invalid button 1042 is omitted from the device authentication setting screen 1040 based on the access number.

  FIG. 19 is a flowchart showing another example of the processing procedure for fixing the device authentication setting based on the access number. For example, when the operator requests registration of the ID of a projector that permits projection, the setting unit 51 of the device authentication controller 47 sets device authentication by the access number registered in the user management unit 37 using the access number as a key in step S51. Search for information. Then, the setting unit 51 determines whether or not the “device authentication lock” value of the device authentication setting information based on the searched access number is valid.

  If the value of “device authentication lock” is not valid, the setting unit 51 proceeds to step S52 and updates the device authentication setting information based on the access number in accordance with a request from the operator. If the value of “device authentication lock” is valid in step S51, the process advances to step S53, and the setting unit 51 displays on the PC 13 or the projector 15 operated by the operator and notifies that the device authentication setting based on the access number cannot be changed. To do.

  In the process of the flowchart of FIG. 19, the value of “device authentication lock” is not automatically validated even if “projector ID allowing projection” of the device authentication setting information by the access number is added. Accordingly, when the operator wants to lock the device authentication setting based on the access number, the operator sets the device authentication lock to be valid from the device authentication setting screen 1040 based on the access number shown in FIG.

  FIG. 20 is an image diagram of another example of the portal screen. A portal screen 1050 in FIG. 20 is obtained by adding a column 1051 in which an access number can be set when a file is uploaded to the portal screen 1000 in FIG. After selecting the file and the projection restriction, the operator can input the access number in the column 1051 and press the upload button to specify the access number and request the file upload.

  If the specified access number has already been issued, the setting unit 51 of the device authentication controller 47 uses the “device authentication setting information by access number” associated with the specified access number to “access” the file requested to be uploaded. Device authentication setting information by number "can be registered.

  FIG. 21 is a flowchart showing an example of file upload processing. The internal storage service controller 45 has a file upload function and can store a file uploaded from a browser on the PC 13 in the internal storage.

  For example, a browser on a PC can request uploading of a file by making a POST request to a URL for uploading (for example, http://projectionportal.example.com/upload). For example, the operator requests file upload from the portal screen 1050 in FIG.

  When the internal storage service controller 45 receives the upload URL from the dispatcher unit 32, in step S61, the internal storage service controller 45 stores the uploaded file in the internal storage.

  In step S62, the internal storage service controller 45 determines whether the file stored in the internal storage is a multi-page file. If the file is a multi-page file, the internal storage service controller 45 converts the multi-page file into a JPEG format file that can be projected by the projector 15 in step S63. In step S64, the internal storage service controller 45 deletes the multi-page file (original file) before conversion, and proceeds to step S68.

  If the file is not a multi-page file in step S62, the internal storage service controller 45 performs the process of step S65. In step S65, the internal storage service controller 45 determines whether the file stored in the internal storage is in a format that can be directly projected by the projector 15. If the format can be directly projected by the projector 15, the internal storage service controller 45 proceeds to step S68.

  If the format is not directly projectable by the projector 15 in step S65, the internal storage service controller 45 converts a file in a format that cannot be directly projected by the projector 15 into a file such as a JPEG format that can be projected by the projector 15 in step S66. . In step S67, the internal storage service controller 45 deletes the file (original file) before conversion, and then proceeds to step S68.

  In step S68, the setting unit 51 of the device authentication controller 47 determines whether there is a record in the user management unit 37 having the same access number as another access number (hereinafter referred to as input) input in the column 1051 of FIG. To do. If it exists, in step S69, the setting unit 51 extracts the device authentication setting value of the record having the same access number as the input and the ID value of the projector that permits projection. The setting unit 51 registers the device authentication setting information based on the access number of the file requested to be uploaded using the extracted device authentication setting value and the ID value of the projector that permits projection, and the process proceeds to step S70.

  On the other hand, if a record having the same access number as the input does not exist in the user management unit 37, the setting unit 51 skips step S69 and proceeds to step S70. In step S70, the internal storage service controller 45 registers file information as shown in FIG. 6 of the uploaded file. In step S71, the internal storage service controller 45 displays the portal screen on the browser on the PC that has requested the file upload.

  FIG. 22 is an image diagram of another example of the device authentication setting screen based on the access number. On the device authentication setting screen 1060 by access number, for example, the issued access number 1061 input in the column 1002 of the portal screen 1000 and the device authentication setting value of device authentication setting information by the access number (for example, valid / invalid) 1062, a valid button 1063 for validating the device authentication setting value 1062, and an invalid button 1064 for invalidating are included.

  The device authentication setting screen 1060 by access number has a file list 1065 associated with the same access number, and a projector ID 1066 that permits photographing for each file name is set. A column 1067 is an input column for the operator to input the projector ID. When the operator presses the add button 1068, the projector 15 having the device ID input in the column 1067 is registered in the file list 1065 as the ID of the projector permitted to project, and the device authentication setting information by the access number is stored. It is added to “ID of a projector that permits projection”.

  Each projector ID 1066 for which photographing is permitted is provided with a delete button 1069. When the operator presses the delete button 1069, the device ID of the projector 15 corresponding to the delete button 1069 is deleted from the ID 1066 of the projector that allows photographing, which is included in the file list 1065, and device authentication based on the access number is performed. It is deleted from “ID of the projector that permits projection” of the setting information.

  When the operator presses the valid button 1063, both the device authentication settings based on the access numbers of the files (for example, abc.jpg and bcd.ppt) included in the file list 1065 are validated.

  In the case of the device authentication setting screen 1060 by the access number as shown in FIG. 22, the device authentication setting information by the access number is as shown in FIG. FIG. 23 is a configuration diagram of another example of device authentication setting information based on an access number. The device authentication setting information based on the access number in FIG. 23 includes an access number, a file name, a file path, device authentication setting, and an ID of a projector that permits projection. The device authentication setting information based on the access number in FIG. 23 is associated with the access number “12345”, records the files “abc.jpg and bcd.ppt”, and the ID of the projector (device ID) that permits projection for each file. Is recorded.

  The file upload process shown in FIG. 21 may be performed as shown in FIG. 24 or 25, for example.

  FIG. 24 is a flowchart showing another example of file upload processing. FIG. 24 shows an example in which no access number is set when a file is uploaded. In addition, since the process of step S81-S87 is the same as the process of step S61-S67 of FIG. 21, description is abbreviate | omitted.

  In step S88, the internal storage service controller 45 registers file information as shown in FIG. 6 of the uploaded file. In step S89, the setting unit 51 newly creates and registers device authentication setting information based on the access number of the file requested to be uploaded. The access number is set to the value of the item “access number” of the file information. Disable the device authentication setting. In step S90, the internal storage service controller 45 displays the portal screen on the browser on the PC that has requested the file upload.

  FIG. 25 is a flowchart showing another example of file upload processing. FIG. 25 shows an example in which an access number is set when a file is uploaded. In addition, since the process of step S101-S108 is the same as the process of step S61-S68 of FIG. 21, description is abbreviate | omitted.

  If it is determined in step S108 that the file exists, the setting unit 51 newly creates and registers device authentication setting information based on the access number of the file requested to be uploaded in step S109. The access number is set to the input access number. Disable the device authentication setting.

  In step S110, the internal storage service controller 45 registers file information as shown in FIG. 6 of the uploaded file. In step S111, the internal storage service controller 45 displays the portal screen on the browser on the PC that has requested the file upload.

  If it is determined in step S108 that it does not exist, the setting unit 51 displays an error on the PC 13 or the projector 15 operated by the operator in step S112.

  FIG. 26 is a flowchart showing an example of a file transmission process. For example, the projector 15 can request transmission of a file by making a get request for the file to a URL (for example, http://projection.example.com/12345/local/presentation.ppt/file001.jpg).

  The “/presentation.ppt/file001.jpeg” portion of the URL is called a URL path in the internal storage. In step S201, the internal storage service controller 45 determines whether the URL path in the internal storage included in the received URL is “/”.

  If the URL path is “/”, the internal storage service controller 45 retrieves file information from the access number in step S202. In step S203, the internal storage service controller 45 filters the file information retrieved and acquired as described later.

  In step S204, based on the file information filtered in step S203, the internal storage service controller 45 is a list of index files representing a multi-page file as a subdirectory and a non-multi-page file as a file in the internal storage. Is generated.

  The internal storage service controller 45 provides the index file to the projector 15. Note that the index file does not include files deleted by the filtering in step S203.

  On the other hand, if the URL path in the internal storage included in the received URL is not “/” in step S201, the internal storage service controller 45 performs the process of step S205.

  In step S205, the internal storage service controller 45 searches for the access number from the file information using the file name and the file path, and searches for “device authentication setting information based on the access number” from the access number.

  In step S <b> 206, the internal storage service controller 45 determines whether the device ID of the projector 15 that has made the get request is included in the “ID of the projector that permits projection” of the searched “device authentication setting information by access number”.

  If the device ID of the projector 15 that has requested the request is included in the “ID of the projector that permits projection”, the process proceeds to step S207, and the internal storage service controller 45 URL in the internal storage included in the received URL. It is determined whether or not the path matches a pattern including a subdirectory (xxx in FIG. 26) indicating a multi-page file. If the URL path in the internal storage matches the pattern, the internal storage service controller 45 retrieves file information from the access number and file name in step S208.

  In step S209, the internal storage service controller 45 filters the file information obtained by searching, as in step S203. In step S <b> 210, the internal storage service controller 45 generates an index file that lists the files in the directory specified by the file path included in the searched file information, and transmits the index file to the projector 15.

  If the URL path in the internal storage does not match the pattern including the subdirectory, the internal storage service controller 45 performs the process of step S212. The internal storage service controller 45 determines whether the URL path in the internal storage included in the received URL matches the pattern (/xxx.jpg) including the image file.

  If the URL path in the internal storage matches the pattern, in step S213, the internal storage service controller 45 retrieves file information from the access number and file name. In step S <b> 214, the internal storage service controller 45 reads an image file having a file path included in the searched file information and transmits the image file to the projector 15.

  In step S212, the internal storage service controller 45 does not match the URL path in the internal storage with the pattern “/xxx.jpg”, in other words, information indicating the image file (page) in the multi-page file (for example, / xxx / nnn.jpg), the process of step S215 is performed. In step S215, the internal storage service controller 45 retrieves file information from the access number and the file name “xxx”.

  In step S216, the internal storage service controller 45 searches for the image file “nnn.jpg” from the directory of the file path included in the searched file information. In step S 217, the internal storage service controller 45 reads the image file requested for acquisition from the internal storage, and provides the read image file to the projector 15.

  In step S206, if the device ID of the projector 15 that has requested the get is not included in the “ID of the projector that permits projection”, the internal storage service controller 45 notifies the projector 15 of an error.

  FIG. 27 is a flowchart of an example of a process for filtering file information. The internal storage service controller 45 proceeds to step S221, and sets the first file among the file information retrieved and acquired as a processing target.

  In step S222, the internal storage service controller 45 determines whether or not the device ID of the projector 15 that has requested the get is included in the “ID of the projector that permits projection”.

  If the device ID of the projector 15 that has requested the get is not included in the “ID of the projector that permits projection”, the internal storage service controller 45 proceeds to step S224 after performing the process of step S223. If the device ID of the projector 15 that has requested the get is included in the “ID of the projector that permits projection”, the internal storage service controller 45 proceeds to step S224 without performing the process of step S223.

  In step S224, the internal storage service controller 45 determines whether there is an unprocessed file among the file information retrieved and acquired. If it is determined that there is an unprocessed file, the internal storage service controller 45 sets one of the unprocessed files as a processing target in step S225. The internal storage service controller 45 returns to step S222 and continues the processing.

  If it is determined that there is no unprocessed file, the internal storage service controller 45 proceeds to step S226, and returns file information that has not been deleted (filtered file information) among the file information obtained by searching.

  FIG. 28 is an image diagram of another example of the device authentication setting screen based on the access number. The device authentication setting screen 1070 by access number in FIG. 28 is obtained by adding a column 1071 for inputting a one-time password and a one-time password registration button 1072 to the device authentication setting screen 1010 by access number in FIG.

  The process of registering the projector ID using the one-time password is started, for example, when the operator inputs the one-time password in the field 1071 of the device authentication setting screen 1070 based on the access number and presses the registration button 1072.

  FIG. 29 is a flowchart of an example of projector registration processing using a one-time password. In step S231, the setting unit 51 acquires all projector registration tickets from the projector registration ticket management unit 40 and lists them. In step S232, the setting unit 51 determines whether there is a list of projector registration tickets having the same “one-time password for registration” as the one-time password input in the field 1071.

  If it exists, the setting unit 51 extracts a projector registration ticket having the same “one-time password for registration” as the one-time password input in the one-time password input field 1071 in step S233.

  In step S234, the setting unit 51 checks whether the “one-time password expiration date” of the extracted projector registration ticket has passed. If not, the setting unit 51 proceeds to step S235, and adds “projector ID” of the extracted projector registration ticket to “projector ID allowing projection” of “device authentication setting information by access number”.

  If it is determined in step S232 that the setting does not exist, the setting unit 51 proceeds to step S237 and notifies an error to the UI (user interface). For example, the device authentication setting screen 1070 displays that the projector registration process using the one-time password input in the one-time password input field 1071 has failed.

  If it is determined in step S234 that the “one-time password expiration date” has passed, the setting unit 51 proceeds to step S236. In step S <b> 236, the setting unit 51 deletes the projector registration ticket whose “one-time password expiration date” has passed from the projector registration ticket management unit 40. In step S237, the setting unit 51 notifies the UI of an error.

  FIG. 30 is a flowchart showing another example of the processing procedure of the dispatcher unit and the controller unit. Note that the processing of the flowchart in FIG. 30 is the same as that in FIG.

  The processing in steps S241 to S243 in FIG. 30 is the same as that in steps S11 to S13 in FIG. If it is determined in step S243 that the device authentication setting included in the “device authentication setting information by access number” is “valid”, the dispatcher unit 32 acquires the device ID of the projector 15 from the request header in step S244.

  The dispatcher unit 32 proceeds to step S245, and whether or not the device ID of the projector 15 acquired (requested) in step S244 is included in “projector ID allowing projection” of “device authentication setting information by access number”. Determine whether.

  If it is determined that the URL is included, the dispatcher unit 32 proceeds to step S246, and determines whether the received URL is a route. The processing in steps S246 to S248 is the same as the processing in steps S17 to S18 and S20 in FIG.

  If it is determined in step S55 that the acquired device ID of the projector 15 is not included in “projector ID allowing projection” of “device authentication setting information by access number”, the dispatcher unit 32 proceeds to step S249. Then, the access control unit 54 of the device authentication controller 47 is notified.

  The access control unit 54 transmits an index as shown in FIG. 31 indicating the device ID of the projector 15 to the projector 15. The process of step S249 is performed when the requested device ID of the projector 15 is not set to “projector ID permitting projection” of “device authentication setting information by access number” and the content cannot be projected. For example, the operator of the projector 15 can project content by registering the device ID of the projector 15 from the device authentication setting screen 1010 with the access number shown in FIG.

  FIG. 31 is a configuration diagram of an example of an index indicating the device ID of the projector. In the index of FIG. 31, the message including the device ID of the projector 15 “To register, please register ID ABCD0123456 at the projection server”.

  The projector 15 that has received the index file of FIG. 31 projects a file list screen 1080 as shown in FIG. 32, for example. FIG. 32 is an image diagram of an example of a file list screen.

  The file list screen 1080 in FIG. 32 is displayed when the requested projector 15 is not set to “ID of a projector that permits projection”. The file list screen 1080 includes the device ID of the projector 15 to be registered in the index. The operator can confirm the device ID of the projector 15 to be registered without looking at the product registration certificate included in the product.

  Note that since the file displayed in FIG. 32 is an index only and there is no actual file, nothing is displayed even if it is selected. Also, the device ID displayed on the file list screen 1080 in FIG. 32 may be a one-time password associated with the device ID of the projector 15 by the projector registration ticket. 30 may be added to the processing of the route controller 44, the external service controller 46, and the like.

  FIG. 33 is a flowchart showing another example of the processing procedure of the dispatcher unit and the controller unit. The processing of the flowchart of FIG. 33 is the same as the flowchart of FIG.

  The processes in steps S261 to S263 in FIG. 33 are the same as steps S241 to S243 in FIG. If the device authentication setting is “valid” in step S263, the dispatcher unit 32 determines in step S264 whether or not the device ID of the projector 15 is included in the request header.

  If it is determined that the device ID of the projector 15 is included in the request header, the dispatcher unit 32 proceeds to step S266, and acquires the device ID of the projector 15 from the request header. The processing in steps S267 to S270 is the same as the processing in steps S245 to S248 in FIG.

  If it is determined in step S264 that the device ID of the projector 15 is not included in the request header, the dispatcher unit 32 proceeds to step S271 and notifies the projector 15 of an error.

  If it is determined in step S267 that the acquired device ID of the projector 15 is not included in “projector ID allowing projection” of “device authentication setting information by access number”, the dispatcher unit 32 proceeds to step S272, The access control unit 54 of the device authentication controller 47 is selected and notified.

  The device authentication controller 47 performs processing as described later in order to cause the operator of the projector 15 to register the device ID of the projector 15 in “ID of the projector that permits projection” of “device authentication setting information by access number”. The processing in step S272 can be in the form described later. 30 may be added to the processing of the route controller 44, the external service controller 46, and the like.

  FIG. 34 is a flowchart showing an example of the processing procedure of the device authentication controller. In step S281, the access control unit 54 of the device authentication controller 47 determines whether or not it is a projection (selection) request “projection permission is required.jpg”.

  If the request is not a projection of “projection permission is required.jpg”, the access control unit 54 proceeds to step S285, and transmits a “index of the screen displaying the device ID of the projector” to the projector 15 as shown in FIG. To do. FIG. 35 is a configuration diagram of an example of an index of a screen that displays the device ID of the projector. The index in FIG. 35 represents “projection permission is required”.

  The projector 15 that has received the index file of FIG. 35 projects a file list screen 1090 as shown in FIG. 36, for example. FIG. 36 is an image diagram of an example of a file list screen. The file list screen 1090 shown in FIG. 36 is displayed when an access number is input when the requested projector 15 is not set to “ID of a projector that permits projection”. Therefore, since the operator projects the content with the projector 15, the operator can confirm that the projection permission is necessary.

  When “projection permission is required.jpg” is selected from the file list screen 1090, the registration ticket generation unit 52 of the device authentication controller 47 performs a projector registration ticket generation process of the projector 15 in step S282. Details of the projector registration ticket generation processing in step S282 will be described later.

  Proceeding to step S283, the projection screen generation unit 53 of the device authentication controller 47 generates binary data “projection permission is required.jpg” in the buffer memory as described later. In step S 284, the access control unit 54 transmits binary data “projection permission is required. Jpg” to the projector 15.

  When receiving the binary data “projection permission is required.jpg”, the projector 15 projects a notification screen 1100 as shown in FIG. 37, for example. FIG. 37 is an image diagram of an example of a notification screen projected when “projection permission is required. Jpg” is selected. The notification screen 1100 in FIG. 37 includes a device ID and a one-time password. Therefore, for example, the operator can easily confirm the device ID and the one-time password to be registered in the device authentication setting screen 1070 with the access number of FIG.

  FIG. 38 is a flowchart of an example of a projector registration ticket generation process. In step S291, the registration ticket generation unit 52 refers to the existing projector registration ticket managed by the projector registration ticket management unit 40, and has a projector registration ticket having the device ID acquired from the request header as “projector ID”. Determine whether or not.

  If there is a projector registration ticket having the device ID acquired from the request header as the “projector ID”, the registration ticket generating unit 52 performs the process of step S293 after performing the process of step S292. If there is no projector registration ticket having the device ID acquired from the request header as the “projector ID”, the registration ticket generation unit 52 does not perform the process of step S292 but performs the process of step S293.

  In step S 292, the registration ticket generation unit 52 deletes the projector registration ticket having the device ID acquired from the request header as the “projector ID” from the projector registration ticket management unit 40.

  In step S293, the registration ticket generation unit 52 generates a new projector registration ticket instance. In step S294, the registration ticket generation unit 52 sets the device ID acquired from the request header in the “projector ID” of the new projector registration ticket.

  In step S295, the registration ticket generation unit 52 sets a random character string consisting of alphanumeric characters in the “one-time password for registration” of the new projector registration ticket. In step S296, the registration ticket generation unit 52 sets the “one-time password expiration date” of the new projector registration ticket, for example, after 3 days.

  FIG. 39 is a flowchart of an example of a process for generating binary data “projection permission is required.jpg”. FIG. 40 is an explanatory diagram showing an example of the base image and the notification wording. In step S301, the projection screen generation unit 53 copies, for example, a base image (background image) shown in FIG. In step S302, the projection screen generation unit 53 generates a character string of the notification wording shown in FIG. 40 (B), for example. The character string of the notification word represents the device ID, one-time password, and expiration date, and corresponds to the projector ID, registration one-time password, and one-time password expiration date set in the projector registration ticket.

  In step S <b> 303, the projection screen generation unit 53 combines the copied base image and the generated notification wording. In step S304, the projection screen generation unit 53 stores the binary data of the notification screen 1100 obtained by combining the base image and the notification word in the buffer memory, and the access control unit 54 stores the address where the binary data of the notification screen 1100 is stored. return.

  FIG. 41 is an explanatory diagram showing another example of the base image and the notification wording. FIG. 41A shows an example of a base image (background image). The base image of FIG. 41 (A) includes the destinations for the notification words 1 to 4. The character string of the notification wording in FIG. 41B includes a device ID, an access number, a one-time password, and an expiration date.

  By synthesizing the base image of FIG. 41A and the notification wording of FIG. 41B, the projection screen generation unit 53 displays the notification screen including the device ID, access number, one-time password, and expiration date. Binary data can be generated.

  FIG. 42 is a flowchart showing another example of the processing procedure of the dispatcher unit and the controller unit. The process of the flowchart of FIG. 42 is the same as the flowchart of FIG.

  In step S <b> 311, the dispatcher unit 32 receives a URL from the HTTP server unit 31. In step S312, the dispatcher unit 32 determines whether the access number included in the received URL is “0000”.

  If the access number included in the received URL is not “0000”, the process proceeds to step S 313, and the dispatcher unit 32 searches the device management setting information by the access number of the user management unit 37 from the access number.

  In step S314, the dispatcher unit 32 determines whether the received URL is a route. If the received URL is a route, the dispatcher unit 32 selects the route controller 44 and distributes the URL in step S315. If the received URL is not a route, the dispatcher unit 32 performs the process of step S316.

  In step S316, the dispatcher unit 32 selects the internal storage service controller or the external service controller 46 associated with the information indicating the service based on the information indicating the service included in the received URL (such as local or ext1). To distribute URLs.

  If the access number included in the received URL is “0000” in step S312, the dispatcher unit 32 proceeds to step S317 and selects and notifies the access control unit 54 of the device authentication controller 47 to that effect. The device authentication controller 47 causes the operator of the projector 15 to register the device ID of the projector 15 in the “ID of the projector that permits projection” of the “device authentication setting information by access number”. Do.

<Summary>
In the projection system 1 of the present embodiment, by designating a projector 15 that can acquire content in advance, a passcode for canceling access restrictions such as an access number is known to a malicious third party, or the access code Even if an IC card for canceling is obtained by a malicious third party, it is possible to prevent content acquisition by a device other than the projector 15 specified in advance.

  Further, in the projection system 1 of the present embodiment, since the projector 15 that can acquire content can be designated in advance even without login, a passcode for canceling the access restriction such as an access number is given to a malicious third party. Even if it is known or an IC card for canceling the access code is obtained by a malicious third party, it is possible to prevent content from being acquired by a device other than the projector 15 specified in advance. Therefore, when there is no login, the projection system 1 does not need to have authentication information, and the risk of information leakage is reduced.

  Thus, in the projection system 1 of this embodiment, the convenience of the projector 15 can be improved.

  The present invention is not limited to the specifically disclosed embodiments, and various modifications and changes can be made without departing from the scope of the claims. The access authority information described in the claims corresponds to the access number, the identification information of the image display apparatus permitted to display the content corresponds to “ID of the projector that permits projection”, and device authentication setting information Corresponds to device authentication setting information by access number.

1 Projection System 10 Projection Server 11 External Web Service Server 12 Storage Server 13 PC
14 Image Input / Output Equipment 15 Projector 16 Firewall (FW)
17 router 18-20 network 25 remote control 31 HTTP server unit 32 dispatcher unit 33 view unit 34 controller unit 35 HTTP client unit 36 format conversion unit 37 user management unit 38 file management unit 40 projector registration ticket management unit 44 route controller 45 internal storage service Controller 46 External service controller 47 Device authentication controller 51 Setting unit 52 Registration ticket generation unit 53 Projection screen generation unit 54 Access control unit 101 Input device 102 Display device 103 External I / F
103a Recording medium 104 RAM
105 ROM
106 CPU
107 Communication I / F
108 HDD
1000, 1020, 1050 Portal screen 1010, 1030, 1040, 1060, 1070 Device authentication setting screen by access number 1080, 1090 File list screen 1100 Notification screen

JP 2008-310247 A

Claims (14)

A server device connectable via a network to one or more devices that provide content and an image display device that displays the content,
Index information processing means for providing the image display device with index information for causing the image display device to display a list screen of information on the content based on content provided from the one or more devices;
Image data processing means for providing the image display device with image data for displaying the content display screen on the image display device, using the content information selected by the operator from the list screen;
The image display that has requested acquisition of the content using the access authority information based on device authentication setting information including access authority information to the content and identification information of the image display device permitted to display the content When the device identification information is registered in the device authentication setting information as the identification information of the image display device permitted to display the content, the index information processing means and the image data processing means are executed. have a and device authentication means,
The device authentication means is
When the identification information of the image display device permitted to display the content in association with the access authority information to the content is set in the device authentication setting information, the device authentication using the device authentication setting information is valid or A server device characterized by accepting an invalid setting .   A server device connectable via a network to one or more devices that provide content and an image display device that displays the content,
  Index information processing means for providing the image display device with index information for causing the image display device to display a list screen of information on the content based on content provided from the one or more devices;
  Image data processing means for providing the image display device with image data for displaying the content display screen on the image display device, using the content information selected by the operator from the list screen;
  The image display that has requested acquisition of the content using the access authority information based on device authentication setting information including access authority information to the content and identification information of the image display device permitted to display the content When the device identification information is registered in the device authentication setting information as the identification information of the image display device permitted to display the content, the index information processing means and the image data processing means are executed. Device authentication means
Have
  The device authentication means
  When accepting an upload request for the content from the device, accepting a setting for valid or invalid device authentication using the device authentication setting information
A server device.   A server device connectable via a network to one or more devices that provide content and an image display device that displays the content,
  Index information processing means for providing the image display device with index information for causing the image display device to display a list screen of information on the content based on content provided from the one or more devices;
  Image data processing means for providing the image display device with image data for displaying the content display screen on the image display device, using the content information selected by the operator from the list screen;
  The image display that has requested acquisition of the content using the access authority information based on device authentication setting information including access authority information to the content and identification information of the image display device permitted to display the content When the device identification information is registered in the device authentication setting information as the identification information of the image display device permitted to display the content, the index information processing means and the image data processing means are executed. Device authentication means
Have
  The device authentication means
  When the identification information of the image display apparatus permitted to display the content in association with the access authority information to the content is set in the device authentication setting information, it is designated by the access authority information to the other content Using the device authentication setting information
A server device. The device authentication means is
The access authority information for the content is set without setting the identification information of the image display device permitted to display the content when the device authentication setting information is newly registered. The server apparatus as described in any one of 1 thru | or 3 . The device authentication means is
Claims 1 to 4 server apparatus according to any one claim characterized by having a function of fixing the device authentication setting information. The device authentication means is
The apparatus authentication setting information is fixed after the identification information of the image display apparatus permitted to display the content in association with the access authority information to the content is set in the apparatus authentication setting information. The server device according to claim 5 . The server device according to claim 6, wherein the device authentication unit includes a UI (user interface) that receives, from an operator, a setting for enabling or disabling a function for fixing the device authentication setting information. The image display apparatus, the server apparatus of claims 1 to 7 any one claim, characterized in that a projector. A server device connectable via a network to one or more devices that provide content and an image display device that displays the content;
Index information processing means for providing the image display device with index information for causing the image display device to display a list screen of content information based on content provided from the one or more devices;
Image data processing means for providing the image display device with image data for displaying the content display screen on the image display device, using the content information selected by the operator from the list screen;
The image display that has requested acquisition of the content using the access authority information based on device authentication setting information including access authority information to the content and identification information of the image display device permitted to display the content When the device identification information is registered in the device authentication setting information as the identification information of the image display device permitted to display the content, the index information processing means and the image data processing means are executed. Function as device authentication means ,
The device authentication means is
When the identification information of the image display device permitted to display the content in association with the access authority information to the content is set in the device authentication setting information, the device authentication using the device authentication setting information is valid or Accept invalid settings
A program characterized by   A server device connectable via a network to one or more devices that provide content and an image display device that displays the content;
  Index information processing means for providing the image display device with index information for causing the image display device to display a list screen of content information based on content provided from the one or more devices;
  Image data processing means for providing the image display device with image data for displaying the content display screen on the image display device, using the content information selected by the operator from the list screen;
  The image display that has requested acquisition of the content using the access authority information based on device authentication setting information including access authority information to the content and identification information of the image display device permitted to display the content When the device identification information is registered in the device authentication setting information as the identification information of the image display device permitted to display the content, the index information processing means and the image data processing means are executed. Device authentication means
Function as
  The device authentication means
  When accepting an upload request for the content from the device, accepting a setting for valid or invalid device authentication using the device authentication setting information
A program characterized by   A server device connectable via a network to one or more devices that provide content and an image display device that displays the content;
  Index information processing means for providing the image display device with index information for causing the image display device to display a list screen of content information based on content provided from the one or more devices;
  Image data processing means for providing the image display device with image data for displaying the content display screen on the image display device, using the content information selected by the operator from the list screen;
  The image display that has requested acquisition of the content using the access authority information based on device authentication setting information including access authority information to the content and identification information of the image display device permitted to display the content When the device identification information is registered in the device authentication setting information as the identification information of the image display device permitted to display the content, the index information processing means and the image data processing means are executed. Device authentication means
Function as
  The device authentication means
  When the identification information of the image display apparatus permitted to display the content in association with the access authority information to the content is set in the device authentication setting information, it is designated by the access authority information to the other content Using the device authentication setting information
A program characterized by An image display system in which one or more devices that provide content and an image display device that displays the content are connected to a server device via a network,
The server device
Index information processing means for providing the image display device with index information for causing the image display device to display a list screen of information on the content based on content provided from the one or more devices;
Image data processing means for providing the image display device with image data for displaying the content display screen on the image display device, using the content information selected by the operator from the list screen;
The image display that has requested acquisition of the content using the access authority information based on device authentication setting information including access authority information to the content and identification information of the image display device permitted to display the content When the device identification information is registered in the device authentication setting information as the identification information of the image display device permitted to display the content, the index information processing means and the image data processing means are executed. Device authentication means,
The image display device includes:
A list screen display means for displaying a list screen of the content information based on the provided index information;
Have a display screen displaying means for displaying a display screen of the content based on the provided image data;
The device authentication means is
When the identification information of the image display device permitted to display the content in association with the access authority information to the content is set in the device authentication setting information, the device authentication using the device authentication setting information is valid or An image display system characterized by accepting an invalid setting .   An image display system in which one or more devices that provide content and an image display device that displays the content are connected to a server device via a network,
  The server device
  Index information processing means for providing the image display device with index information for causing the image display device to display a list screen of information on the content based on content provided from the one or more devices;
  Image data processing means for providing the image display device with image data for displaying the content display screen on the image display device, using the content information selected by the operator from the list screen;
  The image display that has requested acquisition of the content using the access authority information based on device authentication setting information including access authority information to the content and identification information of the image display device permitted to display the content When the device identification information is registered in the device authentication setting information as the identification information of the image display device permitted to display the content, the index information processing means and the image data processing means are executed. Device authentication means
Have
  The image display device includes:
  A list screen display means for displaying a list screen of the content information based on the provided index information;
  Display screen display means for displaying a display screen of the content based on the provided image data;
Have
  The device authentication means is
  When accepting an upload request for the content from the device, accepting a setting for valid or invalid device authentication using the device authentication setting information
An image display system characterized by the above.   An image display system in which one or more devices that provide content and an image display device that displays the content are connected to a server device via a network,
  The server device
  Index information processing means for providing the image display device with index information for causing the image display device to display a list screen of information on the content based on content provided from the one or more devices;
  Image data processing means for providing the image display device with image data for displaying the content display screen on the image display device, using the content information selected by the operator from the list screen;
  The image display that has requested acquisition of the content using the access authority information based on device authentication setting information including access authority information to the content and identification information of the image display device permitted to display the content When the device identification information is registered in the device authentication setting information as the identification information of the image display device permitted to display the content, the index information processing means and the image data processing means are executed. Device authentication means
Have
  The image display device includes:
  A list screen display means for displaying a list screen of the content information based on the provided index information;
  Display screen display means for displaying a display screen of the content based on the provided image data;
Have
  The device authentication means is
  When the identification information of the image display apparatus permitted to display the content in association with the access authority information to the content is set in the device authentication setting information, it is designated by the access authority information to the other content Using the device authentication setting information
An image display system characterized by the above.

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