JP2021165905A - Communication device, control method of communication device, and program - Google Patents

Abstract

To provide a communication device, a control method of the communication device, and programs that prevent the directory structure inside the communication device from being exposed to users when performing a specified file operation from a web browser inside the communication device using a web page provided by the communication device.SOLUTION: A communication device 2 provides a first web page displaying a first operation screen to accept a specified file operation to a first web browser 211 outside the communication device. The communication device has a web server part 201 to provide a second web page displaying a second operation screen which accepts the specified file operation, and an operation acceptance part 910 displaying the second operation screen based on the second web browser, in the second web browser 203 inside the communication device. An operation acceptance part performs the specified file operation within the specified directory of the directories managed by the communication device according to the reception of the specified file operation.SELECTED DRAWING: Figure 9

Description

The present invention relates to a communication device, a control method of the communication device, and a program.

In an information providing server that provides a web page to a web browser, there is known a technique for switching the provided web page based on the information obtained from the requesting web browser.

For example, there is known a web server that accepts access requests from a plurality of agencies on a site common to all agencies and creates and displays a web page unique to the agency that is the access source (see, for example, Patent Document 1). ..

For example, in a communication device having a web server function such as an electronic blackboard, a communication device is used from a web browser inside the communication device by using a function setting web page provided by the communication device to an external terminal device or the like. There is a request to perform the setting operation of.

On the other hand, communication devices such as electronic blackboards are required not to disclose the internal directories and files of the communication device to users because it is necessary to comply with security requirements.

However, for example, in the technology disclosed in Patent Document 1, since it is assumed that the technology is accessed from a general web browser, the display content of the provided web page is only customized according to the request source. Was there. Therefore, when a predetermined file operation such as upload / download is performed from the web browser inside the communication device, the web browser calls the file system of the OS (Operating System), and the directory structure inside the communication device is made public. There is a problem that it will be stored.

One embodiment of the present invention has been made in view of the above problems, and when a predetermined file operation is performed from a web browser inside the communication device by using a web page provided by the communication device. , Prevent the internal directory structure of the communication device from being exposed to the user.

In order to solve the above problems, the communication device according to the embodiment of the present invention is a first web that displays a first operation screen that accepts a predetermined file operation on a first web browser outside the communication device. A web server unit that provides a page and provides a second web page that displays a second operation screen that accepts the predetermined file operation on a second web browser inside the communication device, and the second web server unit. It has an operation reception unit that displays the second operation screen based on a web browser, and the operation reception unit is a predetermined of the directories managed by the communication device in response to the reception of the predetermined file operation. The predetermined file operation is executed within the range of the directory of.

According to one embodiment of the present invention, when a predetermined file operation is performed from a web browser inside the communication device by using a web page provided by the communication device, the internal directory structure of the communication device is disclosed to the user. It can be prevented from being done.

It is a figure which shows the example of the system configuration of the communication system which concerns on one Embodiment. It is a figure for demonstrating the outline of the setting function of the electronic blackboard which concerns on one Embodiment. It is a figure (1) which shows the example of the display screen which concerns on one Embodiment. It is a figure (2) which shows the example of the display screen which concerns on one Embodiment. It is a figure (3) which shows the example of the display screen which concerns on one Embodiment. It is a figure (4) which shows the example of the display screen which concerns on one Embodiment. It is a figure which shows the example of the hardware composition of the electronic blackboard which concerns on one Embodiment. It is a figure which shows the example of the hardware composition of the computer which concerns on one Embodiment. It is a figure which shows the example of the functional structure of the electronic blackboard and the terminal apparatus which concerns on one Embodiment. It is a figure which shows the example of the functional structure of the electronic blackboard control part which concerns on one Embodiment. It is a figure which shows the structural example of each image layer which concerns on one Embodiment. It is a sequence diagram (1) which shows the example of the setting process which concerns on one Embodiment. It is a sequence diagram (2) which shows the example of the setting process which concerns on one Embodiment. It is a flowchart which shows the example of the determination process which concerns on 1st Embodiment. It is a flowchart which shows the example of the determination process which concerns on 2nd Embodiment. It is a flowchart which shows the example of the determination process which concerns on 3rd Embodiment. It is a figure which shows the example of the display screen which concerns on 3rd Embodiment.

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

<System overview>
FIG. 1 is a diagram showing an example of a system configuration of a communication system according to an embodiment. As shown in FIG. 1, for example, the communication system 1 includes a plurality of electronic blackboards 2a and 2b, a plurality of electronic pens 4a and 4b, a plurality of USB (Universal Serial Bus) memories 5a and 5b, and a plurality of notebook PCs. (Personal Computer) 6a, 6b, a plurality of television (video) conference terminals 7a, 7b, a terminal device 8 and the like are included. Further, the electronic blackboards 2a and 2b and the terminal device 8 are communicably connected via, for example, a communication network 9 such as the Internet, a LAN (Local Area Network), or a mobile phone communication network. Further, the plurality of electronic blackboards 2a and 2b are provided with displays 3a and 3b, respectively.

In the following description, when indicating an arbitrary electronic blackboard among a plurality of electronic blackboards 2a and 2b, "electronic blackboard 2" is used, and when indicating an arbitrary display among a plurality of displays 3a and 3b, " Display 3 ”is used. Further, when indicating an arbitrary electronic pen among the plurality of electronic pens 4a and 4b, the "electronic pen 4" is used, and when indicating an arbitrary USB memory among the plurality of USB memories 5a and 5b, the "USB memory 5" is used. Is used. Further, when indicating an arbitrary notebook PC among the plurality of notebook PCs 6a and 6b, the "notebook PC 6" is used, and when indicating an arbitrary video conference terminal among the plurality of video conference terminals 7a and 7b, the "video conference terminal" is used. 7 ”is used.

The electronic blackboard (an example of a communication device) 2 is, for example, a communication device that mutually communicates image data for sharing and content data such as stroke data, and is also called an IWB (Interactive White Board). The communication system 1 is not limited to the two electronic blackboards 2a and 2b, and may have three or more electronic blackboards 2.

The electronic blackboard 2 displays an image (hereinafter referred to as a stroke image) drawn by an event generated by the electronic pen 4 (for example, a touch of the pen tip of the electronic pen 4 or the pen end of the electronic pen 4 on the display 3). , Can be displayed on the display 3. Further, the electronic blackboard 2 is not limited to the electronic pen 4, and for example, a stroke image drawn by an event generated by a user's hand H or the like can be displayed on the display 3. Further, the electronic blackboard 2 changes the stroke image displayed on the display 3 based on operations (gestures, etc.) such as enlargement, reduction, and page turning by the electronic pen 4, the user's hand H, and the like. It is also possible.

Further, an external storage device such as a USB memory 5 can be connected to the electronic blackboard 2, and the electronic blackboard 2 can read electronic files such as image data and document data from the USB memory 5 and the like, and can read electronic files such as the USB memory 5 and the like. It is possible to write an electronic file to.

Further, the electronic blackboard 2a is connected to the electronic blackboard 2a via a cable 10 capable of communicating according to standards such as DisplayPort, DVI (Digital Visual Interface), HDMI (registered trademark) (High-Definition Multimedia Interface) and VGA (Video Graphics Array). The notebook PC 6 can be connected. Then, the electronic blackboard 2 can generate an event by touching the display 3, and can transmit event information indicating the event to the notebook PC 6 in the same manner as an event from an input device such as a mouse or a keyboard.

Further, the video conference terminal 7 is connected to the electronic blackboard 2 via, for example, a cable 11 capable of communicating according to the above standard. The notebook PC 6 and the video conference terminal 7 are not limited to cables, and are connected to the electronic blackboard 2a by wireless communication compliant with various wireless communication protocols such as Bluetooth (registered trademark). It may be.

With the above configuration, the electronic blackboards 2a and 2b transmit and receive image data such as a material image for sharing via the communication network 9, so that a user using the communication system 1 can use the same material image. Can be shared. The material image is an image displayed on the display 3 of the electronic blackboard 2, and may include, for example, a conference material or an image of a capture screen captured by the notebook PC 6.

Further, the electronic blackboards 2a and 2b can share the same stroke image by the user who uses the communication system 1 by transmitting and receiving the stroke data of the stroke image for sharing via the communication network 9, for example. can. For example, a stroke image drawn on the display 3a of the electronic blackboard 2a at one base is also displayed on the display 3b of the electronic blackboard 2b at another base. Similarly, the stroke image drawn on the display 3b of the electronic blackboard 2b at another base is displayed on the display 3a of the electronic blackboard 2a at one base. As described above, since the communication system 1 can perform remote sharing processing for sharing the same material image, stroke image, etc. at a remote location, it is very convenient to use for a conference or the like at a remote location.

The electronic blackboard 2 may further have the functions of the video conference terminal 7 (for example, a function of transmitting and receiving video data and sound data for a call, a camera, a microphone, a speaker, and the like). In this case, the video conference terminal 7 may not be connected to the electronic blackboard 2. In addition, the notebook PC 6 is an option and is not essential.

The system configuration of the communication system 1 shown in FIG. 1 is an example. For example, the electronic blackboard 2 is an example of a communication device according to the present embodiment. The communication device according to the present embodiment is not limited to the electronic blackboard 2, and is, for example, an electronic signage (digital signage), a telestrator used in sports, weather forecasting, etc., a remote image (video) diagnostic device, or a video conference terminal 7. And so on. Further, the notebook PC may be, for example, various devices capable of supplying image frames such as a desktop PC, a tablet PC, a PDA (Personal Digital Assistant), a digital video camera, a digital camera, and a game machine. Further, the USB memory 5 is an example of the external storage device according to the present embodiment. The external storage device according to the present embodiment may be various external storage devices that can be connected to the electronic blackboard 2, for example, various memory cards, HDDs (Hard Disk Drives), SSDs (Solid State Drives), and the like.

(About the setting function)
FIG. 2 is a diagram for explaining an outline of the setting function of the electronic blackboard according to the embodiment. As shown in FIG. 2, the electronic blackboard 2 according to the present embodiment has, for example, a function of setting the functions of the electronic blackboard 2 from the terminal device 8 communicably connected via the communication network 9. There is. For example, the electronic blackboard 2 has a web server unit 201 that provides the terminal device 8 with a web page for displaying a setting screen (first operation screen) for setting the functions of the electronic blackboard 2. The web server unit 201 stores and manages the setting information (for example, password setting, login image setting, setting of each function, etc.) set on the setting screen in the storage unit 202 or the like of the electronic blackboard 2.

The terminal device 8 is an information terminal (computer) such as a PC, a tablet terminal, or a smartphone, which is provided with a first web browser 211 which is a general web browser. The administrator (or user) of the electronic blackboard 2 uses the first web browser 211 to access the web page provided by the web server unit 201 of the electronic blackboard 2, and for example, as shown in FIG. , The setting screen 300 for setting the functions of the electronic blackboard 2 and the like can be displayed.

FIG. 3 shows an image of an example of a setting screen (first operation screen) 300 displayed on the first web browser 211 of the terminal device 8 by the web server unit 201 of the electronic blackboard 2. In the example of FIG. 3, on the setting screen 300, a “read” button 301 for reading the login image to be displayed on the login screen of the electronic blackboard 2 from the storage unit 213 and the like, and a “read” button 301 for writing the login image to the storage unit 213 and the like are used. The "write" button 302 and the like are displayed. Further, on the setting screen 300, a function setting button 303 for calling a function setting screen for setting various functions of the electronic blackboard 2, a setting field 304 for setting a password for the electronic blackboard 2, a "setting" button 305, and the like are displayed. Has been done. The login image, function setting, password setting, and the like included in the setting screen 300 shown in FIG. 3 are examples of setting items for setting the function and the like of the electronic blackboard 2.

The setting screen 300 is created in languages such as HTML (Hyper Text Markup Language), XML (Extensible Markup Language), css (Cascading Style Sheets), and Javascript (registered trademark). Therefore, the administrator or the like can perform the setting operation by performing a predetermined operation on the setting screen 300.

For example, when setting the login image of the electronic blackboard 2, the administrator or the like selects the "read" button 301 on the setting screen 300. As a result, the first web browser 211 displays the file selection screen 400 as shown in FIG. 4, for example. The file selection screen 400 is displayed by the first web browser 211 using, for example, the function of the OS (Operating System) of the terminal device 8. With this file selection screen 400, the administrator or the like can select an arbitrary image stored in the storage unit 213 or the like of the terminal device 8 as the login image of the electronic blackboard 2.

There is a request that the setting screen 300 for setting the functions of the electronic blackboard 2 is also displayed on the display 3 of the electronic blackboard 2. As a result, for example, the mechanism for setting the function of the electronic blackboard 2 from the terminal device 8 and the mechanism for setting the function of the electronic blackboard 2 from the display 3 of the electronic blackboard 2 are standardized to develop and manage the setting function. It is possible to reduce the time and effort required for such things.

Therefore, the electronic blackboard 2 according to the present embodiment has a second web browser 203 that displays a web page provided by the web server 200 within the scope of the electronic blackboard 2. However, if the setting screen 300 as shown in FIG. 3 is displayed by using the second web browser 203, for example, when the "read" button 301 is selected, the file selection as shown in FIG. 4 is selected. There is a problem that the directory structure of the electronic blackboard 2 is displayed on the screen 400. Here, it is assumed that the electronic blackboard 2 is required not to disclose the internal directory structure of the electronic blackboard 2 to the user as a security requirement.

Therefore, the web server unit 201 of the electronic blackboard 2 according to the present embodiment replaces the setting screen 300 as shown in FIG. 3 with respect to the second web browser 203, which is the internal web browser of the electronic blackboard 2. A setting screen 500 as shown in FIG. 5 is provided.

FIG. 5 shows an image of an example of the setting screen (second operation screen) 500 provided by the web server unit 201 of the electronic blackboard 2 to the second web browser 203 inside the electronic blackboard 2. In the example of FIG. 5, on the setting screen 500, a "read" button 501 for reading the login image to be displayed on the login screen of the electronic blackboard 2 from the USB memory 5 or the like, and a "write" for writing the login image to the USB memory 5 or the like. Button 502 and the like are displayed. Further, on the setting screen 500, similarly to the setting screen 300, a function setting button 303 for calling a function setting screen for setting various functions of the electronic blackboard 2, a setting field 304 for setting a password for the electronic blackboard 2, and " The "Set" button 305 and the like are displayed. In the setting screen 500 shown in FIG. 5, the appearance of the "read" button 501 and the "write" button 502 is the "read" button 301 and the "write" included in the setting screen 300 shown in FIG. It may be the same as the appearance of the button 302.

Like the setting screen 300, the setting screen 500 is created in a language such as HTML, XML, css, or Javascript. Therefore, the administrator or the like can perform a predetermined operation on the setting screen 500. You can perform setting operations.

For example, when setting the login image of the electronic blackboard 2, the administrator or the like selects the “read” button 501 on the setting screen 500. As a result, for example, an event indicating that the "read" button 501 is selected is issued, and with this event as a trigger, the electronic blackboard 2 displays, for example, the file selection screen 600 as shown in FIG. On the file selection screen 600, for example, files 601 stored in an external storage device such as a USB memory 5, directories, and the like are displayed in a selectable manner, and the internal directory structure of the electronic blackboard 2 is not displayed.

As described above, according to the electronic blackboard 2 according to the present embodiment, the user does not disclose the internal directory structure of the electronic blackboard 2 to the user by using the second web browser 203 of the electronic blackboard 2. The functions of the electronic blackboard 2 can be set.

<Hardware configuration>
(Hardware configuration of electronic blackboard)
FIG. 7 is a diagram showing an example of the hardware configuration of the electronic blackboard according to the embodiment. As shown in FIG. 2, the electronic blackboard 2 includes a CPU (Central Processing Unit) 101, a ROM (Read Only Memory) 102, a RAM (Random Access Memory) 103, an SSD (Solid State Drive) 104, and a network I / It includes an F (Interface) 105, an external device connection I / F 106, and the like.

Of these, the CPU 101 is an arithmetic unit that controls the operation of the entire electronic blackboard 2. The ROM 102 is a non-volatile memory for storing programs used for starting the CPU 101 such as the CPU 101 and the IPL (Initial Program Loader). The RAM 103 is a volatile memory used as a work area of the CPU 101. The SSD 104 is a large-capacity storage device that stores various data such as a program for the electronic blackboard 2. The SSD 104 is an example of the storage unit 202 of FIG.

The network I / F 105 is a communication interface for connecting the electronic blackboard 2 to the communication network 9 and performing communication. The external device connection I / F 106 is an interface for connecting various external devices. The external device includes, for example, a USB memory 5.

Further, the electronic blackboard 2 includes a capture device 111, a GPU (Graphics Processing Unit) 112, a display controller 113, a contact sensor 114, a sensor controller 115, an electronic pen controller 116 and the like.

Of these, the capture device 111 causes, for example, display the video information as a still image or a moving image on the display of the notebook PC 6. Alternatively, the capture device 111 captures (acquires) a display screen or the like displayed on the display or the like of the notebook PC 6 as a still image or a moving image. The GPU 112 is a semiconductor chip (processor) that specializes in graphics. The display controller 113 controls and manages the screen display in order to output the output image from the GPU 112 to the display 3, the video conference terminal 7, and the like. The contact sensor 114 detects that the electronic pen 4, the user's hand H, or the like has come into contact with the display 3. The sensor controller 115 controls the processing of the contact sensor 114.

The contact sensor 114 inputs coordinates and detects coordinates by an infrared blocking method. In the method of inputting the coordinates and detecting the coordinates, two light receiving and emitting devices installed at both upper ends of the display 3 radiate a plurality of infrared rays in parallel with the display 3 and are provided around the display 3. This is a method of receiving light that is reflected by a reflecting member and returns on the same optical path as the light path emitted by the light receiving element. The contact sensor 114 outputs an infrared ID (Identification) emitted by two light emitting / receiving devices blocked by the object to the sensor controller 115, and the sensor controller 115 identifies a coordinate position which is a contact position of the object. All the IDs shown below are examples of identification information.

Further, the contact sensor 114 is not limited to the infrared blocking method, but is a touch panel of the capacitance type that identifies the contact position by detecting a change in capacitance, and the contact position is determined by a voltage change of two opposing resistance films. Various detection means such as a touch panel of the resistance film type to be specified and a touch panel of the electromagnetic induction type which detects the electromagnetic induction generated by the contact object coming into contact with the display unit and specifies the contact position may be used.

The electronic pen controller 116 communicates with the electronic pen 4 to determine whether or not there is a touch of the pen tip or a touch of the pen tail on the display 3. The electronic pen controller 116 may determine whether or not there is a touch not only on the pen tip and pen end of the electronic pen 4 but also on the portion gripped by the user of the electronic pen 4 and other electronic pen portions.

Further, the electronic blackboard 2 includes a bus line 120 including an address bus, a data bus, and various control signals for electrically connecting each of the above components as shown in FIG. There is.

The program for the electronic blackboard 2 may be recorded on a computer-readable recording medium such as a CD-ROM and distributed.

<Hardware configuration of terminal device>
The terminal device 8 includes, for example, the hardware configuration of the computer 800 as shown in FIG. FIG. 8 is a diagram showing an example of the hardware configuration of the computer according to the embodiment. The computer 800 includes, for example, a CPU 801 and a ROM 802, a RAM 803, an HD (Hard Disk) 804, an HDD (Hard Disk Drive) controller 805, a display 806, an external device connection I / F807, a network I / F808, a keyboard 809, and a pointing device 810. It is equipped with a DVD-RW (Digital Versatile Disk ReWritable) drive 812, a media I / F 814, a bus line 815, and the like.

Of these, the CPU 801 is an arithmetic unit that controls the overall operation of the computer 800. The ROM 802 is a non-volatile memory for storing a program used for starting the CPU 801 such as an IPL. The RAM 803 is a volatile memory used as a work area of the CPU 801. The HD804 is a large-capacity storage device that stores programs such as an OS and applications, various data, and the like. The HDD controller 805 controls reading or writing of various data to the HD 804 according to the control of the CPU 801.

The display 806 displays various information such as cursors, menus, windows, characters, or images. The external device connection I / F807 is an interface for connecting various external devices. The network I / F808 is a communication interface for performing data communication using the communication network 9. The keyboard 809 is a kind of input means including a plurality of keys for inputting characters, numerical values, various instructions, and the like. The pointing device 810 is a kind of input means for selecting and executing various instructions, selecting a processing target, moving a cursor, and the like.

The DVD-RW drive 812 controls reading or writing (storage) of data to. The DVD-RW drive 812 may control reading or writing (storage) of data to a disc of another format instead of the DVD-RW811. The media I / F 814 controls reading or writing (storage) of data to the media 813 such as a flash memory. The bus line 815 includes an address bus, a data bus, various control signals, and the like for electrically connecting each of the above components as shown in FIG.

<Functional configuration>
FIG. 9 is a diagram showing an example of the functional configuration of the electronic blackboard and the terminal device according to the embodiment.

(Functional configuration of terminal device)
The terminal device 8 has, for example, a first web browser 211, a storage unit 213, and the like.

The first web browser 211 is realized by, for example, a general-purpose web browser (program) executed by the CPU 801 of FIG. The administrator or the like uses the first web browser 211 to access the web server unit 201 of the electronic blackboard 2 and displays a setting screen (an example of the first operation screen) for setting the functions and the like of the electronic blackboard 2. You can display a web page to do.

The storage unit 213 is realized by, for example, a program executed by the CPU 801 of FIG. 8, an HD804, an HDD controller 805, or the like, and stores various data and information such as image data and setting information of the electronic blackboard 2.

(Functional configuration of electronic blackboard)
The electronic blackboard (an example of a communication device) 2 may include, for example, a web server unit 201, a storage unit 202, an operation reception unit 910, an electronic blackboard control unit 920, etc. by executing one or more programs on the CPU 101 of FIG. Has been realized. It should be noted that at least a part of each of the above functional configurations may be realized by hardware.

The web server unit 201 includes, for example, a web page providing unit 901 and a setting information management unit 902, as shown in FIG.

The web page providing unit 901 displays a first operation screen for accepting a predetermined file operation (for example, a file list display operation, a file read / write operation, etc.) on a first web browser outside the electronic blackboard 2. Provide a first web page to display. For example, the web page providing unit 901 provides the first web browser 211 of the terminal device 8 with a first web page for displaying the setting screen 300 (an example of the first operation screen) described with reference to FIG.

In addition, the web page providing unit 901 provides a second web browser inside the electronic blackboard 2 with a second web page that displays a second operation screen that accepts a predetermined file operation. For example, the web page providing unit 901 provides the second web browser 203 inside the electronic blackboard 2 with a second web page for displaying the setting screen 500 (an example of the second operation screen) described with reference to FIG. do.

When the second web browser 203 inside the electronic blackboard 2 accesses the web server unit 201, an IP (Internet Protocol) address that points to itself (electronic blackboard 2) called a loopback address is used. As the loopback address, for example, in the case of an IPv4 address, "127.0.0.1" or the like is used. Therefore, the web page providing unit 901 can determine whether or not it is the second web browser 203 by confirming whether or not the IP address of the web browser is this loopback address. However, the present invention is not limited to this, and the web page providing unit 901 determines whether or not the access source web browser is the second web browser 203 based on the information such as the user agent transmitted from the web browser. It may be a thing or the like.

The setting information management unit 902 reflects the setting contents set on the setting screen (setting screen 300 or setting screen 500) provided by the web page providing unit 901 in the setting information 903 stored in the storage unit 202. This setting information 903 is used by the electronic blackboard control unit 920, which will be described later.

The storage unit 202 is realized by, for example, a program executed by the CPU 101 of FIG. 7, SSD 104, or the like, and includes setting information 903, web information 904 for creating a first web page, a second web page, and the like. Memorize various information of.

As shown in FIG. 9, the operation reception unit 910 includes a second web browser 203 and a file processing unit 911, and displays an operation screen (setting screen) based on the second web browser 203.

The second web browser 203 is, for example, a web browser that displays a second web page provided by the web server 200 within the range of the electronic blackboard 2. For example, when the operation reception unit 910 receives a display operation of the setting screen by an administrator or the like, the operation reception unit 910 acquires a second web page for displaying the setting screen 500 from the web server unit 201 by using the second web browser 203. Then, the setting screen 500 is displayed on the display 3.

The file processing unit 911 performs a predetermined file operation within the range of the predetermined directory among the directories managed by the electronic blackboard 2 in response to the acceptance of the predetermined file operation on the setting screen 500 displayed by the second web browser. Run.

Preferably, the predetermined directory includes a directory in an external storage device such as a USB memory 5 connected to the electronic blackboard 2. Further, the predetermined directory does not include the directory in the electronic blackboard 2.

For example, when the "read" button 501 is selected on the setting screen 500 as shown in FIG. 5, a UI event indicating that the "read" button 501 is selected is issued. Using this UI event as a trigger, the file processing unit 911 displays, for example, a file selection screen 600 for displaying files 601 in the USB memory 5 and directories on the display 3. As a result, the electronic blackboard 2 can prevent the directory in the electronic blackboard 2 from being displayed to the user (administrator or the like).

The electronic blackboard control unit 920 is a control unit that controls the functions of the electronic blackboard provided by the electronic blackboard 2. The electronic blackboard control unit 920 is an example of a control unit that controls the functions provided by the communication device according to the present embodiment. For example, when the communication device is the video conference terminal 7, the communication device has a video conference control unit or the like that controls the function of the video conference terminal instead of the electronic blackboard control unit 920. Here, the outline of the electronic blackboard control unit 920 included in the electronic blackboard 2 will be described.

FIG. 10 is a diagram showing an example of the functional configuration of the electronic blackboard control unit according to the embodiment.

The electronic blackboard 2 can be a "sponsoring device" that first starts the remote sharing process, and can also be a "participating device" that later participates in the remote sharing process that has already been started. When the electronic blackboard 2 serves as a host device, the client unit 20 and the server unit 90 are realized in the electronic blackboard 2. Further, when the electronic blackboard 2 serves as a participating device, the client unit 20 is realized but the server unit 90 is not realized in the electronic blackboard 2.

For example, in FIG. 1, when the electronic blackboard 2a is the host device and the electronic blackboard 2b is the participating device, the client unit 20 of the electronic blackboard 2a is via the server unit 90 realized in the same electronic blackboard 2a. Communicates with the client unit 20 of the electronic blackboard 2b of the above. On the other hand, the client unit 20 of the electronic blackboard 2b communicates with the client unit of the other electronic blackboard 2a via the server unit 90 realized in the other electronic blackboard 2a.

[Functional configuration of client part]
As shown in FIG. 10, the client unit 20 includes, for example, an image acquisition unit 21, a coordinate detection unit 22, an automatic adjustment unit 23, a contact detection unit 24, an event distribution unit 25, an operation processing unit 26, and a gesture processing unit 27. It has an image superimposing unit 28, an image processing unit 30, a communication control unit 60, and the like.

The video acquisition unit 21 acquires the output video of a video output device (for example, a notebook PC 6 or the like) connected to the cable 10. For example, the video acquisition unit 21 analyzes an image signal output from the video output device, and determines the resolution of an image frame which is a display image of the video output device formed by the image signal, the update frequency of the image frame, and the like. The image information of is derived and output to the image acquisition unit 31.

The coordinate detection unit 22 detects the coordinate position of an event (for example, an operation in which the user's hand H is touched on the display 3) generated by the user on the display 3. The coordinate detection unit 22 also detects the touched area.

The automatic adjustment unit 23 is activated when the electronic blackboard 2 is activated, and adjusts the image processing parameters of the sensor camera in the optical sensor method of the contact sensor 114 so that the contact sensor 114 can output an appropriate value to the coordinate detection unit 22. do.

The contact detection unit 24 detects an event (such as an operation in which the pen tip of the electronic pen 4 or the pen tail of the electronic pen 4 is pressed (touched) on the display 3) caused by the user.

The event distribution unit 25 distributes the coordinate position of the event detected by the coordinate detection unit 22 and the detection result detected by the contact detection unit 24 into each event of stroke drawing, UI operation, and gesture operation.

Here, in the "stroke drawing", when the stroke image (B) shown in FIG. 11 is displayed on the display 3, the user presses the electronic pen 4 on the display 3, and this pressing is performed. This is an event in which the electronic pen 4 is moved in this state, and finally the electronic pen 4 is released from the display 3. By this stroke drawing, for example, the alphabets "S" and "T" are drawn on the display 3. It should be noted that this "stroke drawing" includes not only drawing an image but also events such as deleting an already drawn image and editing the drawn image.

The "UI operation" is an event in which the user presses a predetermined position with the electronic pen 4 or the hand H when the UI image (A) shown in FIG. 11 is displayed on the display 3. .. By this UI operation, for example, the color and width of the line drawn by the electronic pen 4 are set.

The "gesture operation" is an event in which the user touches or moves the display 3 with his / her hand H when the stroke image (B) shown in FIG. 11 is displayed on the display 3. By this gesture operation, for example, by moving the hand H while the user touches the hand H on the display 3, the image can be enlarged (or reduced), the display area can be changed, the page can be switched, and the like. can.

The operation processing unit 26 executes various operations according to the elements of the UI in which the event has occurred from those determined to be UI operations by the event distribution unit 25. Elements of this UI include, for example, buttons, lists, checkboxes, and text boxes.

The gesture processing unit 27 executes an operation corresponding to the gesture operation determined by the event distribution unit 25.

The image superimposing unit 28 displays the image superimposed by the display superimposing unit 36, which will be described later, as an image on a video output device (for example, display 3 or the like). Further, the video superimposing unit 28 pictures-in the video sent from another video output device (for example, a video conference terminal 7 or the like) with respect to the video from the video output device (for example, a notebook PC 6 or the like).・ Picture. Further, the image superimposing unit 28 switches to display the image that has been picture-in-pictured and displayed on a part of the display 3 on the entire display 3.

The image processing unit 30 performs, for example, superimposition processing of each image layer as shown in FIG. The image processing unit 30 includes, for example, an image acquisition unit 31, a stroke processing unit 32, a UI image generation unit 33, a background generation unit 34, a layout management unit 35, a display superimposition unit 36, a page processing unit 37, and a page data storage unit. Includes 50 mag.

Of these, the image acquisition unit 31 acquires each frame as an image from the image acquired by the image acquisition unit 21. The image acquisition unit 31 outputs the data of this image to the page processing unit 37. This image corresponds to the output image (C) from the video output device (notebook PC 6 or the like) shown in FIG.

The stroke processing unit 32 draws an image, deletes the drawn image, and edits the drawn image based on the event related to the stroke drawing assigned by the event distribution unit 25. The image obtained by drawing the stroke corresponds to the stroke image (B) shown in FIG.

The UI image generation unit 33 generates a UI (user interface) image preset on the electronic blackboard 2. This UI image corresponds to the UI image (A) shown in FIG.

The background generation unit 34 receives the media data of the page data read from the page data storage unit 50 by the page processing unit 37 from the page processing unit 37. The background generation unit 34 outputs the received media data to the display superimposition unit 36. Further, the image based on this media data corresponds to the background image (D) shown in FIG. The pattern of the background image (D) is, for example, a solid color, a grid display, or the like.

The layout management unit 35 provides the display superimposition unit 36 with layout information indicating the layout of each image output from the image acquisition unit 31, the stroke processing unit 32, and the UI image generation unit 33 (or the background generation unit 34). I manage it. As a result, the layout management unit 35 causes the display superimposition unit 36 to display the output image (C) and the stroke image (B) at which position in the UI image (A) and the background image (D). You can instruct whether to hide it.

Based on the layout information output from the layout management unit 35, the display superimposition unit 36 arranges the layout of each image output from the image acquisition unit 31, the stroke processing unit 32, and the UI image generation unit 33 (background generation unit 34). conduct.

The page processing unit 37 collects the data of the stroke image (B) and the data of the output image (C) into one page data and stores it in the page data storage unit 50.

The communication control unit 60 controls the communication performed with the other electronic blackboard 2 and the communication performed with the communication control unit 70 described later in the server unit 90 via the communication network 9.

Since the client unit 20 is not used in the setting process of the electronic blackboard 2 according to the present embodiment, detailed description of the client unit 20 will be omitted here.

[Functional configuration of server section]
The server unit 90 is provided on each electronic blackboard 2, and any electronic blackboard 2 can play a role as a server unit. Therefore, the server unit 90 has a communication control unit 70 and a data management unit 80.

The communication control unit 70 controls communication with the communication control unit 70 in the client unit 20 in the same electronic blackboard 2 and the communication control unit 70 in the client unit 20 in the other electronic blackboard 2 via the communication network 9. The data management unit 80 manages various data such as operation data and image data, for example.

Since the server unit 90 is not used in the setting process of the electronic blackboard according to the present embodiment, detailed description of the server unit 90 will be omitted here.

<Processing flow>
Subsequently, the processing flow of the control method of the communication device (electronic blackboard 2) according to the present embodiment will be described.

(Setting process 1)
FIG. 12 is a sequence diagram (1) showing an example of the setting process according to the embodiment. This process shows an example of a setting process in which an administrator or the like sets a function or the like of the electronic blackboard 2 by using the terminal device 8.

In step S1201, the administrator or the like shall perform a display operation of the setting screen on the first web browser 211 of the terminal device 8. In response to this, in step S1202, the first web browser 211 transmits the display request of the setting screen to the web server unit 201 of the electronic blackboard 2. The display request of this setting screen includes the IP address of the request source (for example, the IP address of the terminal device 8).

In step S1203, the web page providing unit 901 of the web server unit 201 determines the web page to be provided to the requesting web browser. Here, since the requesting web browser is the first web browser 211 outside the electronic blackboard 2, the web page providing unit 901 displays the setting screen 300 for the requesting first web browser 211. Decide to provide a first web page. An example of a specific method for determining a web page will be described in the first to third embodiments described later.

In steps S1204 and S1205, the web page providing unit 901 creates a first web page for displaying the setting screen 300 and transmits it to the requesting first web browser 211.

In step S1206, the first web browser 211 of the terminal device 8 displays, for example, the setting screen 300 as shown in FIG. 3 by displaying the first web page transmitted from the web server unit 201.

In step S1207, the administrator or the like shall perform a file reading operation (an example of a predetermined file operation) on the displayed setting screen 300. For example, the administrator or the like selects the "read" button 301 on the setting screen 300 as shown in FIG.

In step S1208, the first web browser 211 of the terminal device 8 displays, for example, the file selection screen 400 as shown in FIG. 4 in response to a reading operation by an administrator or the like. For example, the first web browser 211 displays the file selection screen 400 by using the function of the OS of the terminal device 8.

In step S1209, the administrator or the like performs a file selection operation on the displayed file selection screen 400. For example, the file selection screen 400 can display files and directories stored in the storage unit 213 (HD804 or the like) of the terminal device 8. Therefore, the administrator or the like can select an arbitrary file stored in the storage unit 213 of the terminal device 8 on the file selection screen 400.

In step S1210, the first web browser 211 of the terminal device 8 temporarily stores the selected file, for example, and closes the file selection screen 400.

In step S1211, the administrator or the like shall perform a setting operation on the setting screen 300. For example, the administrator or the like selects the "setting" button 305 on the setting screen 300 shown in FIG.

In step S1212, the first web browser 211 of the terminal device 8 transmits the setting contents set by the administrator or the like to the web server unit 201 of the electronic blackboard 2. This setting content includes, for example, the file selected in step S1209.

In step S1213, the setting information management unit 902 of the web server unit 201 stores the setting contents transmitted from the terminal device 8 in a temporary file or the like.

In step S1214, the administrator or the like shall perform the end operation of the setting screen 300. For example, the administrator or the like closes the setting screen 300 displayed on the first web browser 211.

When the display of the setting screen 300 is completed in steps S1215 and S1216, the setting information management unit 902 of the web server unit 201 stores the setting contents stored in the temporary file or the like in the storage unit 202 of the electronic blackboard 2. Reflect in information 903.

By the above processing, the administrator or the like can set the function or the like of the electronic blackboard 2 by using the terminal device 8.

(Setting process 2)
FIG. 13 is a sequence diagram (2) showing an example of the setting process according to the embodiment. This process shows an example of a setting process in which an administrator or the like sets a function or the like of the electronic blackboard 2 by using the setting screen 500 displayed on the display 3 of the electronic blackboard 2.

In step S1301, when the administrator or the like performs a display operation of the setting screen on the electronic blackboard 2, in step S1302, the operation reception unit 910 requests the display of the setting screen using the second web browser 203. It is transmitted to the web server unit 201. The display request of this setting screen includes, for example, the loopback address described above.

In step S1303, the web page providing unit 901 of the web server unit 201 determines the web page to be provided to the requesting web browser. Here, since the requesting web browser is the second web browser 203 inside the electronic blackboard 2, the web page providing unit 901 displays the setting screen 500 on the requesting second web browser 203. Decide to provide a second web page. An example of a specific method for determining a web page will be described in the first to third embodiments described later.

In steps S1304 and S1305, the web page providing unit 901 creates a second web page for displaying the setting screen 500 and transmits it to the requesting second web browser 203.

In step S1306, the second web browser 203 of the operation reception unit 910 displays, for example, the setting screen 500 as shown in FIG. 5 by displaying the second web page transmitted from the web server unit 201. Display in 3.

In step S1307, the administrator or the like shall perform a file reading operation (an example of a predetermined file operation) on the displayed setting screen 500. For example, the administrator or the like selects the "read" button 501 on the setting screen 500 shown in FIG.

In step S1308, the second web browser 203 of the operation reception unit 910 notifies the file processing unit 911 of a UI event indicating that the "read" button 501 has been selected. When the "read" button 501 (an example of a display element) of the setting screen 500 is selected, the HTML element or the like that notifies the file processing unit 911 of a UI event indicating that the "read" button 501 has been selected is used. It is configured.

In step S1309, the file processing unit 911 of the operation receiving unit 910 displays, for example, the file selection screen 600 as shown in FIG. 6 on the display 3 by using the UI event notified from the second web browser 203 as a trigger. .. Preferably, the file selection screen 600 displays files and directories in an external storage device such as a USB memory 5. Further, the files and directories in the electronic blackboard 2 are not displayed on the file selection screen 600.

In step S1310, the administrator or the like performs a file selection operation on the displayed file selection screen 600.

In step S1311, the file processing unit 911 of the operation reception unit 910 temporarily stores the selected file, for example, and closes the file selection screen 600.

In step S1312, the administrator or the like shall perform a setting operation on the setting screen 500. For example, the administrator or the like selects the "setting" button 305 on the setting screen 500 shown in FIG.

In step S1313, the second web browser 203 of the operation reception unit 910 transmits the setting contents set by the administrator or the like to the web server unit 201. This setting content includes, for example, the file selected in step S1310 and the like.

In step S1314, the setting information management unit 902 of the web server unit 201 stores the setting contents transmitted from the operation reception unit 910 in a temporary file or the like.

In step S1315, the administrator or the like shall perform the end operation of the setting screen 500. When the display of the setting screen 500 is completed in steps S1316 and S1317, the setting information management unit 902 of the web server unit 201 stores the setting contents stored in the temporary file or the like in the storage unit 202 of the electronic blackboard 2. Reflect in information 903.

By the above processing, the electronic blackboard 2 can accept the setting of the function and the like of the electronic blackboard 2 by the user without disclosing the directory structure inside the electronic blackboard 2 to the user (administrator or the like).

(Web page decision processing)
Subsequently, an example of the web page determination process executed by the web page providing unit 901 of the web server unit 201 will be described by exemplifying a plurality of embodiments.

[First Embodiment]
FIG. 14 is a flowchart showing an example of the determination process according to the first embodiment. This process is, for example, an example of a process of determining a web page to be provided to the requesting web browser, which is executed by the web page providing unit 901 of the web server unit 201 in steps S1203 of FIG. 12 and S1303 of FIG. Shown.

In step S1401, when the web page providing unit 901 of the web server unit 201 receives the display request of the setting screen from the first web browser 211 or the second web browser 203, the processes after step S1402 are executed. ..

In step S1402, the web page providing unit 901 confirms the IP address of the request source included in the display request of the setting screen.

In step S1403, the web page providing unit 901 determines whether or not the IP address of the requesting source is the internal IP address (for example, loopback address) of the electronic blackboard 2. If the requesting IP address is not the IP address inside the electronic blackboard 2, the web page providing unit 901 shifts the process to step S1404. On the other hand, when the IP address of the requesting source is the IP address inside the electronic blackboard 2, the web page providing unit 901 shifts the process to step S1405.

When the process proceeds to step S1404, the web page providing unit 901 provides the requesting web browser with a first web page for displaying, for example, a setting screen 300 (an example of the first operation screen) as shown in FIG. Decide to do.

On the other hand, when the process proceeds to step S1405, the web page providing unit 901 displays, for example, the setting screen 500 (an example of the second operation screen) as shown in FIG. 5 on the requesting web browser. Decide to provide.

By the above processing, the web page providing unit 901 provides the first web page to the first web browser 211 outside the electronic whiteboard 2, and to the second web browser 203 inside the electronic whiteboard 2. A second web page can be provided.

[Second Embodiment]
FIG. 15 is a flowchart showing an example of the determination process according to the second embodiment. This process is different from the process of determining the web page to be provided to the requesting web browser, which is executed by the web page provider unit 901 of the web server unit 201, for example, in step S1203 of FIG. 12 and S1303 of FIG. An example is shown. Of the processes shown in FIG. 15, the processes of steps S1401 to S1404 are the same as the processes of the first embodiment described with reference to FIG. 14, and therefore, the differences from the first embodiment will be mainly described here. I do.

If it is determined in step S1403 that the IP address of the requesting source is the IP address inside the electronic blackboard 2, the processes after step S1501 are executed.

In step S1501, the web page providing unit 901 confirms the cookie information included in the display request (an example of the access request) of the setting screen. Cookie is a function that saves information from the web server side to the storage area (cookie) on the web browser side, and the web browser side automatically stores the information (cookie information) stored in the cookie when sending a message. Send to the web server side.

Using this cookie, the web page providing unit 901 of the web server unit 201 makes a predetermined access to the web browser, for example, information once set, selection history of options, number of visits, setting page last viewed, and the like. Information can be stored.

In step S1502, the web page providing unit 901 determines whether or not the cookie contains predetermined access information. For example, when the predetermined access information is the "last viewed setting page", the web page providing unit 901 includes the "last viewed setting page" in the cookie information included in the display request of the received setting screen. Determine if it is included.

If the cookie does not contain the predetermined access information, the web page providing unit 901 shifts the process to step S1503. On the other hand, when the cookie contains the predetermined access information, the web page providing unit 901 shifts the process to step S1504.

After moving to step S1503, the web page providing unit 901 decides to provide the top page of the second web page to the requesting web browser. For example, the web page providing unit 901 provides the default second web page among the plurality of second web pages provided by the web page providing unit 901 to the requesting web browser (second web browser). Decide to do.

On the other hand, when the process proceeds to step S1504, the web page providing unit 901 decides to provide the second web page corresponding to the predetermined information included in the cookie information to the requesting web browser. For example, when the predetermined information is the "last viewed setting page", the web page providing unit 901 provides the "last viewed setting page (second web page)" to the requesting web browser. You may decide that.

By the above processing, the web page providing unit 901 can provide a different web page according to the cookie information to the second web browser 203 inside the electronic blackboard 2.

The process shown in FIG. 15 is an example. For example, the web page providing unit 901 may also provide a different web page to the first web browser 211 outside the electronic blackboard 2 according to the cookie information.

Further, the web page providing unit 901 may provide a different web page to the requesting web browser according to the information (local storage information) stored in the local storage (LocalStorage) instead of the cookie. good. Local storage is a function that stores information from the web server side to the web browser side, similar to cookies. The web browser side can send the information stored in the local storage (local storage information) to the web server side as needed when sending a message or the like.

[Third Embodiment]
FIG. 16 is a flowchart showing an example of the determination process according to the third embodiment. This process is different from the process of determining the web page to be provided to the requesting web browser, which is executed by the web page provider unit 901 of the web server unit 201, for example, in step S1203 of FIG. 12 and S1303 of FIG. An example is shown.

In step S1601, when the web page providing unit 901 of the web server unit 201 receives the display request of the setting screen from the first web browser 211 or the second web browser 203, the processes after step S1602 are executed. ..

In step S1602, the web page providing unit 901 confirms the IP address of the requesting source included in the display request of the setting screen.

In step S1603, the web page providing unit 901 acquires the state of the electronic blackboard control unit 920 (for example, waiting, sharing operation, independent operation, etc.). The process of step S1603 may be executed after step S1604.

In step S1604, the web page providing unit 901 determines whether or not the IP address of the requesting source is the internal IP address (for example, loopback address) of the electronic blackboard 2. If the requesting IP address is not the IP address inside the electronic blackboard 2, the web page providing unit 901 shifts the process to step S1605. On the other hand, when the IP address of the requesting source is the IP address inside the electronic blackboard 2, the web page providing unit 901 shifts the process to step S1608.

When the process proceeds to step S1605, the web page providing unit 901 determines whether or not the electronic blackboard function is being used. For example, when the state of the electronic blackboard control unit 920 is "standby", the web page providing unit 901 determines that the electronic blackboard function is not being used. On the other hand, when the state of the electronic blackboard 2 is other than "waiting", the web page providing unit 901 determines that the electronic blackboard function is being used.

When the electronic blackboard function is not being used, the web page providing unit 901 shifts the process to step S1606. On the other hand, when the electronic blackboard function is being used, the web page providing unit 901 shifts the process to step S1607.

When the process proceeds to step S1606, the web page providing unit 901 determines to provide the requesting web browser with the first web page for displaying the setting screen 300. In this case, the web page providing unit 901 creates, for example, in step S1204 of FIG. 12, a first web page for displaying the setting screen 300 as shown in FIG.

On the other hand, when the process proceeds to step S1607, the web page providing unit 901 displays on the requesting web browser a setting screen excluding items that cannot be set while using the electronic blackboard function from the setting screen 300. Decide to provide. In this case, for example, in step S1204 of FIG. 12, the web page providing unit 901 displays a setting screen in which items that cannot be set while using the electronic blackboard function are deleted from the setting screen 300 as shown in FIG. Create a web page for.

When the process proceeds from step S1604 to step S1608, the web page providing unit 901 determines whether or not the electronic blackboard function is being used. When the electronic blackboard function is not being used, the web page providing unit 901 shifts the process to step S1609. On the other hand, when the electronic blackboard function is being used, the web page providing unit 901 shifts the process to step S1610.

When the process proceeds to step S1609, the web page providing unit 901 determines to provide the requesting web browser with, for example, a second web page for displaying the setting screen 500. In this case, the web page providing unit 901 creates, for example, in step S1304 of FIG. 12, a second web page for displaying the setting screen 500 as shown in FIG.

On the other hand, when the process proceeds to step S1610, the web page providing unit 901 displays a second web page on the requesting web browser, which excludes items that cannot be set while using the electronic blackboard function from the setting screen 500. Decide to provide. In this case, the web page providing unit 901 creates, for example, in step S1304 of FIG. 13, a second web page for displaying the setting screen 1700 as shown in FIG. 17, for example.

FIG. 17 is a diagram showing an example of a display screen according to the third embodiment. This figure shows an image of an example of the setting screen 1700 created by the web page providing unit 901. In the example of FIG. 17, on the setting screen 1700, among a plurality of setting items, "login image", "function setting", and "password setting" included in the setting screen 500, "function setting" (electronic blackboard function) is displayed. Only the setting items excluding the items that cannot be set during use) are displayed.

By the above processing, the web page providing unit 901 can provide a different web page to the requesting web browser according to the state of the electronic blackboard 2.

The process shown in FIG. 16 is an example of a process of providing a different web page to the requesting web browser according to the state of the electronic blackboard 2. For example, the web page providing unit 901 may provide a different web page to the requesting web browser depending on the performance, load, and other conditions of the electronic blackboard 2.

In each of the above embodiments, the communication device is described as the electronic blackboard 2, but the electronic blackboard 2 is an example of the communication device according to the present embodiment. The communication device according to the present embodiment may be various communication devices that provide a web page that displays an operation screen that accepts a predetermined file operation.

<Effect of embodiment>
As described above, according to the present embodiment, when a predetermined file operation is performed from the web browser inside the communication device by using the web page provided by the communication device, the directory structure inside the communication device is changed. It can be prevented from being exposed to users.

<Supplement>
Each function of each embodiment described above can be realized by one or more processing circuits. Here, the "processing circuit" in the present specification is a processor programmed to execute each function by software such as a processor implemented by an electronic circuit, or a processor designed to execute each function described above. It includes devices such as ASIC (Application Specific Integrated Circuit), DSP (digital signal processor), FPGA (field programmable gate array) and conventional circuit modules.

Also, the group of devices described in the examples merely represents one of a plurality of computing environments for implementing the embodiments disclosed herein.

In certain embodiments, the communication device (electronic blackboard 2) can include a plurality of computing devices, such as a server cluster. The plurality of computing devices are configured to communicate with each other via any type of communication link, including networks, shared memory, and the like, and perform the processes disclosed herein. Similarly, the terminal device 8 may include a plurality of computing devices configured to communicate with each other.

Further, the communication device and the terminal device 8 can be configured to share the disclosed processing steps, eg, FIGS. 12-16, in various combinations. For example, a process performed by a given unit can be performed by a communication device. Similarly, the function of a given unit can be performed by the terminal device 8. Further, each element of the communication device and the terminal device 8 may be integrated into one device, or may be divided into a plurality of devices.

2 Electronic blackboard (an example of communication device)
5 USB memory (an example of an external storage device)
201 Web server unit 203 Second web browser 211 First web browser 300 Setting screen (example of first operation screen)
500 setting screen (an example of the second operation screen)
501 "Read" button (an example of display elements)
600 File selection screen 910 Operation reception section

Japanese Unexamined Patent Publication No. 2004-133690

Claims (10)

It ’s a communication device,
A first web browser that displays a first operation screen that accepts a predetermined file operation is provided to a first web browser outside the communication device, and a second web browser inside the communication device is provided with the above. A web server unit that provides a second web page that displays a second operation screen that accepts a predetermined file operation, and
An operation reception unit that displays the second operation screen based on the second web browser, and
Have,
The operation receiving unit is a communication device that executes the predetermined file operation within the range of the predetermined directory among the directories managed by the communication device in response to the reception of the predetermined file operation. The communication device according to claim 1, wherein the predetermined directory includes a directory in an external storage device connected to the communication device. The communication device according to claim 1 or 2, wherein the predetermined directory does not include a directory in the communication device. The second operation screen includes a display element that accepts the predetermined file operation.
Claims 1 to 3 include the operation receiving unit including a file processing unit that displays a file selection screen that selectively displays one or more files included in the predetermined directory according to the selection of the display element. The communication device according to any one of the above. The web server unit
The predetermined access information is stored in the cookie of the second web browser, and the predetermined access information is stored.
The communication device according to any one of claims 1 to 4, wherein the web page provided to the second web browser is changed according to the access information included in the access request from the second web browser. .. The web server unit
Predetermined access information is stored in the local storage of the second web browser, and
The second web page provided to the second web browser is changed according to the access information included in the access request from the second web browser, according to any one of claims 1 to 4. The communication device described. The communication device according to claim 5 or 6, wherein the predetermined access information includes URL information of a web page that the second web browser last browsed. The communication device according to any one of claims 1 to 4, wherein the web server unit changes a web page provided to the second web browser according to the state of the communication device. The communication device
A process of providing a first web page for displaying a first operation screen that accepts a predetermined file operation to a first web browser outside the communication device.
A process of providing a second web page inside the communication device with a second web page that displays a second operation screen that accepts the predetermined file operation.
The process of displaying the second operation screen on the second web browser, and
A process of executing the predetermined file operation within the range of the predetermined directory among the directories managed by the communication device in response to the acceptance of the predetermined file operation on the second operation screen.
How to control a communication device. For communication equipment
A process of providing a first web page for displaying a first operation screen that accepts a predetermined file operation to a first web browser outside the communication device.
A process of providing a second web page inside the communication device with a second web page that displays a second operation screen that accepts the predetermined file operation.
The process of displaying the second operation screen on the second web browser, and
A process of executing the predetermined file operation within the range of the predetermined directory among the directories managed by the communication device in response to the acceptance of the predetermined file operation on the second operation screen.
A program that runs.

Images