JP2002244630A - Information display system, and its information display method and storage medium - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an information display system which can display document data stored on an information server on a projector through portable equipment and enables projector operation by the portable equipment, and its information display method and storage medium. SOLUTION: A user sends an access request to the information server 300 through the portable equipment 100 and receives and displays a title list. Then when the user sends a connection request to the projector 200 through the portable equipment 100, the projector 200 sends a program for controlling the projector 200 to the portable equipment 100. The user selects a desired document to be displayed on the projector 200 from the title list, obtains the document from the information server 300, and sends it to the projector 200, and the program controls the projector 200, so that the document is displayed on the projector 200.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] 1. Field of the Invention [0002] The present invention relates to an information display system for acquiring information of a server connected to a network and displaying the acquired information on a display device such as a projector, a control method thereof, and a storage medium.

[0002]

2. Description of the Related Art Conventionally, when electronic data is displayed using a projector installed in a conference room or the like, a terminal such as a notebook PC (personal computer) storing the electronic data is carried, and the terminal and the projector are connected. The display was connected by a monitor cable. In addition, when the target electronic data is not stored in the terminal, it is necessary to perform a preliminary preparation such as replacing a memory card storing the electronic data or downloading the electronic data to the terminal through a network. Further, when a plurality of presenters alternately display, a monitor cable connected to the projector is connected to a terminal of each presenter.

On the other hand, a projection monitor having a network interface is called COMDEX / Fall'99 (1999).
At an exhibition held in the United States in November).
When such a projector is used, electronic data can be directly transmitted to the projector via a network.

[0004]

FIG. 26 is a diagram showing a mechanism of information display currently generally performed using a projector. A user visits a notebook PC and a portable device (for example, a mobile phone) at a destination (a lecture hall, etc.)
And the notebook PC and the mobile phone are connected using a modem, the notebook PC and the projector are connected by a monitor cable, and the electronic data in the information server is once downloaded to the notebook PC and then displayed on the projector. Like that. In this case, the user has to operate a plurality of devices such as a notebook PC, a mobile phone, and a remote controller of a projector, and there is a problem that the operation is troublesome, such as switching between devices.

As shown in FIG. 27, when a projector connectable to a network is used, the display can be performed by causing the projector to execute a program for displaying electronic data in an information server. . In this case, the operation such as display switching can be performed using only the remote controller, so the operation is simple, but the communication fee is the facility of the visited place (when the projector is installed in the facility).
Therefore, there is a problem that the charge to the person performing the communication becomes unclear.

The present invention has been made in view of the above points. A portable device capable of communicating with both an information server connected to a network and a projector connected to another network is provided in the information server. It is an object of the present invention to provide an information display system capable of displaying stored document data on a projector via a portable device and allowing the portable device to operate the projector, an information display method thereof, and a storage medium. I do.

[0007]

According to one aspect of the present invention, there is provided an information display system comprising: an information server connected to a first network; and a display device connected to a second network. An information display system comprising: a portable device connectable to both the first and second networks, wherein the information server communicates with the portable device via the first network. Communication means, document management means for storing and managing document data, request command receiving means for receiving a document data request command from the portable device, and a document data request received via the request command receiving means. A search unit that searches for document data according to the command; and a document data transmission unit that transmits the document data searched by the search unit to the portable device. Device includes a communication means for via said second network, to communicate with the portable device,
Document data receiving means for receiving document data from the portable device, and display means for displaying the document data received via the receiving means, the portable device is an input means for the user to input a command A display unit for displaying an operation menu and a state of the device; and a first unit for communicating with the information server via the first network.
Communication means for communicating with the display device via the second network; request means for requesting document data from the information server based on a user's command; Document data receiving means for receiving document data from the information server, and document data transmitting means for transmitting the document data received via the receiving means to the display device are provided.

According to a second aspect of the present invention, in the information display system according to the first aspect, when the communication format on the first network is different from the communication format on the second network, the portable device is used. Is characterized by further comprising document data conversion means for converting the document data received by the document data reception means into a format that can be transmitted to the display device.

According to a third aspect of the present invention, in the information display system according to any one of the first and second aspects, when there are a plurality of the portable devices, each of the portable devices is:
Each of the mobile devices further includes an identifier transmitting unit that transmits an identifier of the own device to the information server, and the information server further includes an identifier receiving unit that receives an identifier from each of the mobile devices. The management means manages the document based on the received identifier.

According to a fourth aspect of the present invention, in the information display system according to any one of the first to third aspects, when there are a plurality of the portable devices, each of the portable devices further includes its own device. A second identifier transmitting unit that transmits an identifier to the display device; and a display request transmitting unit that transmits a display request command for requesting display of document data to the display device, wherein the display device further comprises: An identifier receiving means for receiving an identifier from each of the mobile devices, a display request receiving means for receiving a display request command from each of the mobile devices, and a display switching for switching display contents based on the received identifier and the display request command. Means.

According to a fifth aspect of the present invention, in the information display system according to any one of the first to fourth aspects, the display device further transmits a program for controlling its own device to the portable device. Program transmission means;
The mobile device further includes: a control command receiving unit that receives a control command from the mobile device; and a control unit that controls the own device based on a control command received via the control command receiving unit. Program receiving means for receiving a control program from a display device, control program executing means for executing the received program, and control instructions for transmitting a command for controlling the display device to the display device according to a user's command Transmitting means.

According to a sixth aspect of the present invention, in the information display system according to any one of the first to fifth aspects, the information server further includes a portable device when the portable device requests document data. And charging means for adding charging information in accordance with the identifier, wherein the charging means charges the owner of the portable device according to the amount of exchanged document data.

According to another aspect of the present invention, there is provided an information display method, comprising: an information server connected to a first network; a display device connected to a second network; 2. An information display method for an information display system, comprising: a mobile device connectable to both of two networks, wherein the information server communicates with the mobile device via the first network. A communication process, a document management process for storing and managing document data, a request command receiving process for receiving a document data request command from the portable device, and a document data request command received in the request command receiving process. And a document data transmission step of transmitting the document data retrieved by the retrieval step to the portable device, A communication device for communicating with the portable device via the second network; a document data receiving process for receiving document data from the portable device; and a document received by the document data receiving process. A display step of displaying data, wherein in the portable device, an input step for a user to input a command, a display step for displaying an operation menu and a state of the device, and the first network A first communication step for communicating with the information server, a second communication step for communicating with the display device via the second network, and A document data requesting step of requesting document data from the information server;
A document data receiving step of receiving document data from the information server; and a document data transmitting step of transmitting the document data received in the document data receiving step to the display device.

According to an eighth aspect of the present invention, in the information display method of the seventh aspect, when the communication format on the first network is different from the communication format on the second network, the portable device is used. And a document data conversion step of converting the document data received in the document data reception step into a format that can be transmitted to the display device.

According to a ninth aspect of the present invention, in the information display method according to any one of the seventh and eighth aspects, when there are a plurality of the portable devices, each of the portable devices further includes its own device. Having an identifier transmitting step of transmitting an identifier of the information server to the information server, the information server further includes an identifier receiving step of receiving an identifier from the portable device, and in the document management step of the information server,
The document is managed based on the received identifier.

According to a tenth aspect of the present invention, in the information display method according to any one of the seventh to ninth aspects, when there are a plurality of the portable devices, each of the portable devices further includes its own device. A second identifier transmitting step of transmitting an identifier of the document data to the display device; anda display request transmitting step of transmitting a display request command to the display device to request display of document data. An identifier receiving step of receiving an identifier from the portable device; a display request receiving step of receiving a display request command from the portable device; and a display switching step of switching display contents based on the received identifier and the display request command. And characterized in that:

An information display method according to an eleventh aspect is the information display method according to any one of the seventh to tenth aspects, wherein the display device further transmits a program for controlling the own device to the portable device. A program transmission step, a control command reception step of receiving a control command from the portable device, and a control step of controlling the own device based on the received control command, wherein the portable device further comprises: A program receiving step of receiving a control program from a display device, a control program executing step of executing the received program, and a control command of transmitting a command for controlling the display device to the display device in accordance with a user command And a transmitting step.

According to a twelfth aspect of the present invention, in the information display method according to any one of the seventh to eleventh aspects, the information server further comprises: There is a charging step of adding charging information corresponding to the device identifier, and in the charging step,
It is characterized in that the owner of the portable device is charged according to the amount of exchanged document data.

According to another aspect of the present invention, there is provided a storage medium comprising: an information server connected to a first network; a display device connected to a second network; A storage medium storing a computer-implementable program, including an information display method of an information display system including a portable device connectable to both of the networks, wherein the information display method includes: A communication process for communicating with the portable device via the first network, a document management process for storing and managing document data, and a request command for receiving a document data request command from the portable device. A receiving step, a search step of searching for document data according to the document data request command received in the request command receiving step, The retrieved document data and a document data transmission step of transmitting to the portable device, in the display device via the second network,
A communication step for communicating with the portable device; a document data receiving step of receiving document data from the portable device; and a display step of displaying the document data received in the document data receiving step. , An input step for the user to input a command, a display step for displaying an operation menu and the state of the device,
A first communication step for communicating with the information server via the network; a second communication step for communicating with the display device via the second network;
A document data requesting step of requesting document data from the information server based on a user's command, a document data receiving step of receiving document data from the information server, and displaying the document data received by the document data receiving step. Transmitting a document data to the apparatus.

[0020] The storage medium according to the fourteenth aspect is the first aspect.
In the storage medium of (3), when the communication format on the first network is different from the communication format on the second network, the portable device further stores the document data received in the document data receiving step. A document data conversion step of converting the document data into a format that can be transmitted to a display device.

According to a fifteenth aspect, a storage medium according to the first aspect is provided.
In the storage medium according to any one of 3 and 14, when there are a plurality of the portable devices, each of the portable devices further includes an identifier transmitting step of transmitting an identifier of the own device to the information server, The information server further includes an identifier receiving step of receiving an identifier from the portable device. In the document managing step of the information server,
The document is managed based on the received identifier.

The storage medium according to claim 16 is the storage medium according to claim 1.
In any of the storage media 3 to 15, when there is a plurality of the portable devices, each of the portable devices further includes a second identifier transmitting step of transmitting an identifier of the portable device to the display device, A display request transmission step of transmitting a display request command to the display device to request display of document data, wherein the display device further comprises:
An identifier receiving step of receiving an identifier from the portable device;
A display request receiving step of receiving a display request instruction from the portable device; and a display switching step of switching display contents based on the received identifier and the display request instruction.

The storage medium according to claim 17 is the storage medium according to claim 1.
In any one of the storage media according to any one of Items 3 to 16, the display device may further include a program transmission step of transmitting a program for controlling the device to the portable device, and a control command receiving a control command from the portable device. A receiving step, and a controlling step of controlling the own device based on the received control command, wherein the portable device further includes a program receiving step of receiving a control program from the display device; A control program execution step of executing the received program; and a control command transmission step of transmitting a command for controlling the display device to the display device in accordance with a user's instruction.

The storage medium according to claim 18 is the storage medium according to claim 1.
In any one of the storage media according to any one of Items 3 to 17, the information server further includes a charging step of adding charging information corresponding to an identifier of the mobile device when document data is requested from the mobile device. In the billing step, the owner of the portable device is billed according to the amount of the exchanged document data.

[0025]

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

FIG. 1 is a diagram showing a system configuration of an information display system according to one embodiment of the present invention.

As shown in FIG. 1, the information display system according to the present embodiment includes a portable device 100, a projector (projection monitor) 200, and an information server 300.

The portable device 100 includes two communication units (wireless LAN (local area), a first communication unit such as a portable telephone, which can be connected to a public network, and a second communication unit for communicating with a projector. network)). The first communication unit is used to access the information server 300 via the public network and receive information from the information server 300, and the second communication unit is used to remotely control the projector 200, and to further control the portable device. It is used to transfer the information obtained from the information server 300 via 100.

Further, as shown in FIG.
Has a small display 103 for displaying information.
a and a plurality of buttons for inputting information. These are not special and are a display and a button attached to a general mobile phone, but a server button 102a for outputting an access instruction to the information server 300 to simplify the input, A page button 102b for switching to a page operation screen for information including a plurality of pages, and a projector 200
And a control button 102c for controlling the Even without these buttons 102a to 102c, it is possible to realize the same function by operating a menu displayed on the display 103a,
In the present embodiment, these buttons 102a to 102c
The operation in the case where is attached will be described.

Referring back to FIG. 1, projector 200 has a communication unit with portable device 100 to receive and display information transmitted from portable device 100. Note that the projector 200 can not only display information from the portable device 100 but also display information from an input interface provided in a general projector such as a monitor input and an analog video.

The information server 300 is, for example, a Web server, is connected to a public network, and is accessible from the portable device 100 through the public network. In the information server 300, HTML (hypertext)
Document data composed of a plurality of pages, such as a markup language document and presentation material, is managed, and can be uploaded / downloaded according to an instruction from a user. Further, the document is managed for each user, and it is possible to prevent other users from accessing the document except those uploaded to the shared area. These functions are functions related to general document management, and a detailed description thereof will be omitted. In the following description, it is assumed that a plurality of documents including a plurality of pages are managed.

Next, an outline of the operation of the information display system of the present embodiment will be described with reference to FIGS. The detailed operation of each component will be described later.

In FIG. 3, the user carries the portable device 100 and moves to a place where the projector 200 is installed, for example, a conference room. Also, the projector 200
The user may carry it with the portable device 100 and carry it to the destination.

At the destination, the user uses the portable device 100 to access the information server 300. In the present embodiment, the mobile device 100 has a mobile phone function (first communication unit).
The user can access the information server 300 by making a telephone call to an access point on a public network in which the information server 300 is installed. When the user makes an access request, the portable device 1
00 transmits a server connection request (step S1).

The information server 300 accessed from the portable device 100 (step S2) authenticates the portable device 100 (step S3) and acquires and transmits a title list of the corresponding document (step S4). The identification of the mobile device is performed using the ID of the mobile device (such as a telephone number).

The portable device 100 is connected to the information server 3
00, the title list of the document managed by the information server 300 is received (step S5), and the display 1
The title list of the document as shown in FIG. 6A is displayed on 03a (step S6).

Next, the user makes a communication connection with the projector 200 via the second communication unit of the portable device 100.
When the user makes a connection request to the projector 200, the portable device 100 transmits a projector connection request (step S7).

The projector 200 requested to be connected by the portable device 100 (step S8) performs a communication connection process, and thereafter, stores a program for controlling itself in the portable device 10.
0 (step S9).

The portable device 100 receives a program (such as a driver and an application program including a GUI) for controlling the projector 200 from the projector 200 (step S10), and executes the program to cause the display 103a to connect the projector 200 to the display 103a. A menu screen for control is displayed (step S11). Here, the user performs predetermined projector control. For example, turning on the power of the projection light or adjusting the focus.

When the user controls the projector, the portable device 100 transmits a designated control command (step S12). When the projector 200 receives the control command (Step S13), control is performed according to the received command (Step S14).

When the projector control screen is displayed on the portable device 100, the screen of the title list of the previously displayed document is deleted.
The screen can be switched by pressing a to 102c. In this case, the title list screen of the document can be displayed by pressing the server button 102a.

Next, the user looks at the document title list screen and selects a document to be displayed by the projector 200.

Then, information on the document is transmitted to the information server 300 (step S15), and the information server 300 receiving the information (step S16) obtains information on the page configuration of the document (step S17) and transmits it. It transmits (step S18).

Upon receiving the page information (step S19), the portable device 100 displays a page operation screen for the selected document on the display 103a (step S2).
0).

Next, the user looks at the page operation screen displayed on the portable device 100 and selects a page to be displayed on the projector 200.

Then, the number of the selected page is transmitted to the information server 300 (step S21), and the information server 300 receiving the number (step S22) acquires the contents of the page corresponding to the received page number. (Step S23), and transmits it (Step S24).

The portable device 100 that has received the page content via the first communication unit (step S25) transmits the page content to the projector 200 via the second communication unit (step S27). If the first and second communication units have different communication protocols, the portable device 100 performs protocol conversion (step S26). Generally, since the page content itself is described in a format independent of the communication protocol, it is realized by rewriting the header information of the packet exchanged by each communication.

Then, projector 200 that has received the page content (step S28) displays the content (step S29).

Although the above description has been made in the order of connection with the information server 300 and connection with the projector 200, even if the order is reversed, the same processing is performed and the information is stored in the information server 300. The contents of the document can be displayed on projector 200.

The portable device 100 has the following four operating states corresponding to the above screens. (1) Phone mode (2) Projector control mode (3) Server access mode (4) Page operation mode (1) In the phone mode, the portable device 100
FIG. 5 is a mode set when the camera is not connected to any one of the projector 200 and the projector 200.
The screen display is as shown in FIG. The “phone” part at the bottom of the screen is highlighted and the other parts are grayed out, so that the user can know that the telephone mode is set. In the telephone mode, the user can make and receive telephone calls in the same manner as a normal mobile phone.

The portable device 100 always checks by the second communication unit whether or not it can communicate with the projector 200.
Can be detected. At this time, as shown in FIG. 5B, the screen flashes while the “control” portion is inverted, and the user is notified of the projector 200.
Notify that communication is possible.

(2) The projector control mode is a mode that is set when the portable device 100 is connected to the projector 200, receives a control program from the projector 200, and is in a controllable state. In this mode, the screen is displayed as shown in FIG. “Control” at the bottom of the screen is highlighted,
Since the other parts are grayed out, the user can know that the projector is in the projector control mode.

(3) The server access mode is a mode that is set when the portable device 100 is connected to the information server 300, receives a document list, and can select a document. 6 (a). The “server” part at the bottom of the screen is highlighted and the other parts are grayed out, so that the user can know that the server access mode is set.

(4) In the page operation mode, the portable device 10
When the user selects a document from 0, the mode is set when the page information of the document is received from the information server 300 and the page can be selected. In this mode, the mode is set as shown in FIG. The screen is displayed as shown. The “page” portion at the bottom of the screen is highlighted and the other portions are grayed out, so that the user can know that the current mode is the page operation mode.

Next, the configuration and operation of each element described in FIG. 1 will be described in detail with reference to the drawings.

FIG. 7 is a block diagram showing a detailed configuration of portable device 100.

In FIG. 1, a portable device 100 includes a first communication unit 101, an input device 102, a display device 103, a CPU 104, a ROM 105, and a RAM 1.
06 and the second communication unit 107.

The first communication unit 101 includes a communication interface that can connect to a public network by wireless communication. This communication interface is, for example, a mobile phone, a PHS, a satellite line, or the like. In the present embodiment, a mobile phone is employed.

The input device 102 is used by a user to make an input to the portable device 100.

The display device 103 displays the status of the portable device 100, an operation menu, and the like.

The CPU 104 controls the entire portable device 100. Further, the CPU 104 stores the ROM 105 and the R
The program written in the AM 106 is executed.

The ROM 105 stores a program for causing the portable device 100 to function and a portable device ID (for example,
Information such as a telephone number is stored. In addition, ROM
The program stored in 105 is read by the RAM 106 and then executed by the CPU 104.

The RAM 106 is used as a temporary data storage location, for example, for reading a program to be executed or providing an area for writing a value of a variable necessary for executing the program.

The second communication unit 107 includes a communication interface that can be connected to the projector 200 by wireless communication, for example, a wireless LAN, Bluetooth, or the like.

Although not shown, the portable device 100
Can be connected to an external storage device such as an FDD (floppy (registered trademark) disk drive) or a CD-ROM drive. A program written on a storage medium mounted on the external storage device is stored in the RAM 106. The function of the mobile device 100 can also be executed by reading.

FIG. 8 is a block diagram showing a detailed configuration of projector 200.

In the figure, a projector 200 includes a communication unit 201, a display unit 202, a CPU 203, an RO
M204 and RAM205.

Communication unit 201 includes a communication interface for wireless communication with second communication unit 107 of portable device 100.

[0069] Display unit 202 displays data received from portable device 100. Note that since the present apparatus is a projector, the display unit 202 includes a small liquid crystal monitor, a lens for enlargement, a lamp for projection, and the like, but has the same configuration as the display unit used in a general projection monitor. The details will be omitted.

The CPU 203 controls the entire projector 200. In addition, the CPU 203 includes a ROM 204
And the program written in the RAM 205 is executed.

The ROM 204 stores programs for causing the projector 200 to function. The program stored in the ROM 204 is stored in the RAM 2
After that, the program is executed by the CPU 203.

The RAM 215 is used as a temporary data storage location, for example, for reading a program to be executed or providing an area for writing a value of a variable necessary for executing the program.

Although not shown, the projector 2
00, an external storage device such as an FDD or a CD-ROM drive can be connected, and a program written in a storage medium mounted on the external storage device is stored in the R.00.
By reading into the AM 205, the projector 2
00 functions can be performed.

Although not shown, the projector 2
00 is provided with an interface for receiving a monitor signal and a video signal.
2 can be displayed, but since it is an input interface provided in a general projector, detailed description is omitted.

FIG. 9 is a block diagram showing a detailed configuration of the information server 300.

In the figure, an information server 300 includes a communication unit 301, a document database 302, a CPU 303
, A ROM 304 and a RAM 305.

The communication unit 301 includes a communication interface for connecting to a public network. The communication unit 30
1 may be directly connected to a public network or may be connected to the public network via a LAN.

The document database 302 is a database for managing document data, and is readable and writable from each section of the information server 300.

The CPU 303 controls the information server 300 as a whole. The CPU 303 executes a program written in the ROM 304 or the RAM 305.

The ROM 304 stores programs for causing the information server 300 to function. The program stored in the ROM 304 is stored in the RAM 3
After being read by the CPU 05, it is executed by the CPU 303.

The RAM 305 is used as a temporary data storage location, for example, for reading a program to be executed or providing an area for writing a value of a variable necessary for executing the program.

Although not shown, the information server 30
0 is connected to an external storage device such as an FDD or a CD-ROM drive, and a program written in a storage medium mounted on the external storage device is stored in the RA.
By reading into the M305, the information server 300
Function can be performed.

Next, the operation processing of each element of the information display system of the present embodiment will be described in detail using a flowchart.

FIG. 10 is a flowchart showing the flow of the operation of portable device 100 when the user makes a connection request to information server 300.

The user operates the server button 102 shown in FIG.
When the user presses a, the portable device 100 first proceeds to step S31.
In step S32, it is checked whether or not the server is connected to the information server 300. If the server is connected to the information server 300, the server access mode is set in step S32. The determination as to whether or not it is connected to the information server 300 is made with reference to the state of the first communication unit 101. As described above, the mobile device 100 has four operation modes, and the mode in which the mobile device 100 is in is written in the mode information storage area of the RAM 106. Therefore, in the process of step S32, information indicating the server access mode is written in the mode information storage area.

Next, in step S33, a mode display is performed on the display device 103 to notify that the portable device 100 has entered the server access mode. In this case, as shown in FIG.
Although the portion is highlighted, the list is not displayed at the top of the screen because the document list has not been received from the information server 300 yet.

At step S31, the information server 300
If not connected to the information server 300 in step S34. In the present embodiment, this processing is performed by making a call to an access point connectable to the information server 300. The telephone number of the access point may be registered in the mobile device 100 and automatically transmitted, or a user may press a button to make a telephone call.

The processes described with reference to FIG.
The program written into the RAM 105 is read into the RAM 106 and executed by the CPU 104.

FIG. 11 is a flowchart showing the flow of the operation of the information server 300 when a connection request is received from the portable device 100.

As described in step S34, when the portable device 100 calls the access point, a request for communication connection is made to the information server 300.

First, in step S41, the communication unit 3
01 receives a connection request from the mobile device 100. Then, communication is established by performing a predetermined process. For example, when establishing socket communication, PPP (point-
Communication is established by exchanging a to-point protocol or the like, but any communication protocol may be used.

Next, in step S42, a portable device ID is obtained. Specifically, it is an identification ID of the mobile device 100 that has made the connection request, such as a telephone number. The acquired portable device ID is written in the RAM 305 and stored while connected to the portable device 100.

Then, in step S43, it is checked whether or not the acquired portable device ID is registered. This is a determination as to whether or not to permit access to the information server 300. If not registered, the communication is closed (not shown) and the process is terminated.

On the other hand, if the registered portable device ID is found in step S43, the document is searched from the document database 302 using the portable device ID as a key in step S44. That is, in the present embodiment, it is assumed that the document is not managed for each user name (may be a user ID) but for each mobile device ID. Since each user usually has an occupied mobile device 100, the mobile device ID is used to identify the user.
This eliminates the need for the user to input the user ID, which has the effect of simplifying the operation.

It is assumed that the document has been registered using portable device 100. However, registration may be performed using a PC or the like connected to a network, but a mobile device ID is assigned.

Next, in step S45, since there are a plurality of searched documents, a document list is created by arranging the titles in a list format.

Then, in step S46, the created document list is transmitted to the connected portable device 100.

Note that each process described with reference to FIG.
The program written in 304 is read into the RAM 305 and executed by the CPU 303.

FIG. 12 is a flowchart showing the flow of the operation of portable device 100 when a document list is received from information server 300.

First, in step S51, a document list is received and written in the RAM.

Next, in step S52, it is checked whether the portable device 100 is in the server access mode. If not, the process ends because the received document list is not displayed on the screen.

On the other hand, if the server access mode has been set in step S52, the received document list, which is actually written in the RAM 106, is analyzed in step S53, and shaping for screen display is performed. .

Then, in step S54, a document list is displayed on the screen. An example of the screen is shown in FIG.
It is. Following the name of the communicating information server, a list of document titles is displayed.

Note that each process described with reference to FIG.
The program written into the RAM 105 is read into the RAM 106 and executed by the CPU 104.

FIG. 13 is a flowchart showing the flow of the operation of portable device 100 when the user requests connection to projector 200.

The user operates the control button 102c shown in FIG.
When is pressed, the mobile device 100 first checks whether or not the projector 200 is connected to the projector 200 in step S61. Do. The determination as to whether or not the projector 200 is connected is performed with reference to the state of the second communication unit 107. Further, as described above, the portable device 100 has four operation modes, and the mode in which the device is in is written in the mode information storage area of the RAM 106. Therefore, in the process of step S62, information indicating the projector control mode is written in the mode information storage area.

Next, in step S63, a mode display is performed on the display device 103 to notify that the portable device 100 has entered the projector control mode. In this case, as shown in FIG. 6C, the “control” portion at the bottom of the screen is highlighted, but when a connection request is issued for the first time, the control program has not yet been received from the projector 200. Therefore, the menu is not displayed at the top of the screen.

At step S61, the projector 20
If the connection with the projector 200 has not been established, a connection process with the projector 200 is performed in step S64. In the present embodiment, portable device 100 and projector 200 perform wireless communication. This is the projector 2
This is because 00 is easily controlled.

Note that each process described with reference to FIG.
The program written in 105 is read into the RAM 106, and the program is executed by the CPU 104.

FIG. 14 is a flowchart showing the flow of the operation of projector 200 when a connection request is received from portable device 100.

First, in step S71, a connection request from the portable device 100 is received, and in step S72, connection processing is performed. Specifically, this connection process is to establish communication by the communication unit 201 exchanging a protocol for establishing communication with the portable device 100.

Next, in step S73, it is checked whether the projector 200 is already connected to another portable device 100 '. This is because a single projector 200 may be used by a plurality of portable devices 100 and 100 'as shown in FIG. 25. In the present embodiment, a case where each displayed screen is switched will be described. . Of course, other display methods such as split display can be added.

As a result of the check in step S73, if the mobile device 100 'is connected to another mobile device 100', the display state of each connected mobile device is acquired in step S74. The display state indicates whether or not the page content transmitted from the portable device is displayed by the projector 200.

Then, in step S75, it is checked whether or not there is a portable device 100 'whose display state is being displayed. As a result, if there is a mobile device 100 ′ being displayed, in step S76, the display state of the mobile device 100 that has newly output the connection request is turned off.
(Not displayed).

Then, in step S77, a program for controlling itself (projector 200) is transmitted to portable device 100. Projector 200
Has functions generally provided in addition to the functions related to the present invention, and these may be different for each projector. Different functions have different control menus, and therefore, a control program is provided for each projector. This control program is stored in the ROM 20
4 is written.

In step S73, another portable device 1
00 ', and step S
If there is no portable device 100 'being displayed at 75, the display state ON (display) is transmitted in step S78, and the process of step S77 is performed.

Note that each process described with reference to FIG.
The program written in 204 is read into the RAM 205, and the CPU 203 executes the program.

FIG. 15 is a flowchart showing the flow of the operation of portable device 100 when a control program is received from projector 200.

First, in step S81, when the display state is received through the second communication unit 107, the received display state is written in the display state storage area of the RAM 106 in step S82.

Next, when the control program is received in step S83, the control program is written in the RAM 106, and in step S84, the control program written in the RAM is executed.

Then, in step S85, a projector control screen is displayed. This screen is shown in FIG.
(C) is an output of the result of executing the control program.

The processes described with reference to FIG.
The program written into the RAM 105 is read into the RAM 106 and executed by the CPU 104.

FIG. 16 shows a document list screen (FIG.
6 is a flowchart illustrating a flow of an operation of the mobile device 100 when a document is selected by operating (a)).

First, in step S91, it is checked whether a document has been selected. If no document has been selected, this processing ends.

On the other hand, if a document is selected in step S91, the selected document ID (or document title) is obtained in step S92, and in step S93, the obtained document ID is replaced with the first document ID. Communication unit 10
1 to the information server 300.

The processes described with reference to FIG.
The program written in 105 is read into the RAM 106 and executed by the CPU 104.

FIG. 17 is a flowchart showing the flow of the operation of the information server 300 when document information (document ID) is received from the portable device 100.

First, in step S101, the document I
D is received and written into the RAM 305.

Next, in step S102, a document is searched from the document database 302 using the received document ID as a key.

Then, the retrieved document is analyzed, and in step S103, page configuration information is obtained. The page configuration information is the number of pages when the document is composed of a plurality of pages.

Then, in step S104, the acquired page configuration information is transmitted to portable device 100.

Note that each process described with reference to FIG.
The program written in 304 is read into the RAM 305 and executed by the CPU 303.

FIG. 18 is a flowchart showing the flow of the operation of portable device 100 when receiving the page configuration information from information server 300.

First, in step S111, page configuration information is received and written to the RAM.

In step S112, the received page configuration information is analyzed.

Next, in step S113, it is checked whether or not the portable device 100 is in the page operation mode, and if it is, the process is terminated.

On the other hand, if it is determined in step S113 that the current mode is not the page operation mode, then in step S114,
Set the page operation mode. As described above, the mobile device 100 has four operation modes, and the mode in which the mode is is written in the mode information storage area of the RAM 106, and the mode is inspected with reference to the mode. Therefore, in the process of step S114, information indicating the page operation mode is written in the mode information storage area.

Next, in step S115, the current display state is acquired, and in step S116, mode display is performed on the display device 103 to inform that the portable device 100 has entered the page operation mode. In this case, as shown in FIG. 6B, the “page” portion at the bottom of the screen is displayed in reverse video.

The processing described with reference to FIG.
The program written in 105 is read into the RAM 106 and executed by the CPU 104.

FIG. 19 is a flowchart showing the flow of the operation of portable device 100 when the user operates the page operation screen and selects a page.

First, in step S121, it is checked whether or not the projector 200 is connected.
If it is not connected to the projector 200, even if the page content is acquired, it cannot be displayed, and thus this processing ends.

On the other hand, if it is determined in step S121 that the connection has been established with projector 200, the page number of the selected page is obtained in step S122, and the page number is transmitted to information server 300 in step S123. .

The processes described with reference to FIG.
The program written in 105 is read into the RAM 106 and executed by the CPU 104.

FIG. 20 is a flowchart showing the operation flow of the information server 300 when a page number is received from the portable device 100.

First, in step S131, a page number is received and obtained.

Next, in step S132, a portion corresponding to the acquired page number is searched from the corresponding document.

[0147] Then, in step S133, the page contents are acquired, and in step S134, the acquired page contents are transmitted to the portable device 100.

The processes described with reference to FIG.
The program written in 304 is read into the RAM 305 and executed by the CPU 303.

FIG. 21 is a flowchart showing the flow of the operation of portable device 100 when the page content is received from information server 300.

First, in step S141, page contents are received.

Next, in step S142, the contents of the page are transmitted to the projector 200 so as to be transmitted.
Rewrite the header part.

Then, in step S143, the page contents are transmitted to projector 200.

The processes described with reference to FIG.
The program written in 105 is read into the RAM 106 and executed by the CPU 104.

FIG. 22 is a flowchart showing the flow of the operation of projector 200 when page contents are received from portable device 100.

First, in step S151, the page contents are received, and in step S152, the received page contents are written in the RAM 205.

Next, in step S153, the ID of the portable device 100 that has transmitted the page contents is acquired, and in step S154, a display state indicating whether information from the portable device 100 is displayed is acquired. I do.

Next, in step S155, it is checked whether or not the display state is ON.
If it is N, in step S156, RA
The page content stored in M205 is displayed on the display unit 202.

If the display state is not ON in step S155, since the page content is not displayed, the process ends.

The processes described with reference to FIG.
The program written in 204 is read into the RAM 205, and the CPU 203 executes the program.

FIG. 23 is a flowchart showing the flow of the operation of portable device 100 when the user operates the page operation screen to change the display state.

First, in step S161, the display state (new display state) specified by the user is obtained.

Then, in step S162, the display state (old display state) so far is acquired, and step S1 is executed.
At 63, it is checked whether or not the old display state and the new display state are the same. If the old display state and the new display state are the same, the state is not changed, and this processing ends.

On the other hand, if the old display state is different from the new display state in step S163, a display state change request is transmitted to projector 200 in step S164. Information indicating the specified new display state is written in the display state change request.

Then, in step S165, a screen display for notifying that the display state has been changed is performed.
As a result, the “display state” portion at the upper right of the display screen shown in FIG. 6B is replaced with the content indicating the new display state.

The processes described with reference to FIG.
The program written in 105 is read into the RAM 106 and executed by the CPU 104.

FIG. 24 is a flowchart showing a flow of the operation of projector 200 when a display state change request is received from portable device 100.

First, in step S171, a display state change request is received.

Next, in step S172, the ID of the portable device 100 which has output the request is obtained, and in step S1
At 73, the page content of the portable device 100 is RA
It is checked whether or not the page content is stored in M205. If the page content is stored, step S174 is performed.
In step S175, the page contents are acquired, and in step S175, the page contents are displayed.

On the other hand, if the page content is not stored in step S173, the page content display processing (steps S174 and S175) is not performed.

Then, in step S176, the display state of the portable device 100 that has output the request is changed, and in step S177, the change of the display state is notified to all the currently connected portable devices by communication. Also,
In the process of step S176, the display state is ON until then.
The display state of the portable device is turned off.

Note that each process described with reference to FIG.
The program written in 204 is read into the RAM 205, and the CPU 203 executes the program.

A storage medium storing software program codes for realizing the functions of the above-described embodiments is supplied to a system or apparatus, and the computer (or CPU or MPU) of the system or apparatus stores the program in the storage medium. It goes without saying that the object of the present invention is also achieved by reading and executing the program code.

In this case, the program code itself read from the storage medium realizes the novel function of the present invention, and the storage medium storing the program code constitutes the present invention.

As a storage medium for supplying the program code, for example, a floppy disk, hard disk, optical disk, magneto-optical disk, CD-ROM,
CD-R, magnetic tape, nonvolatile memory card, RO
M or the like can be used. Further, the program code may be supplied from a server computer via a communication network.

When the computer executes the readout program codes, not only the functions of the above-described embodiment are realized, but also an OS or the like running on the computer operates based on the instructions of the program codes. It goes without saying that a part or all of the actual processing is performed, and the functions of the above-described embodiments are realized by the processing.

Further, after the program code read from the storage medium is written into a memory provided on a function expansion board inserted into the computer or a function expansion unit connected to the computer, based on the instructions of the program code, It goes without saying that the CPU included in the function expansion board or the function expansion unit performs part or all of the actual processing, and the functions of the above-described embodiments are realized by the processing.

[0177]

As described above, according to the present invention,
By operating only the portable device, the document data stored in the information server connected to the first network can be accessed and the projector connected to the second network can be controlled. This has the effect of simplifying the operation.

Further, since the document data always passes through the portable device, and the information server manages the document for each identifier of the portable device, only the owner of the portable device can access the document data stored by himself. This has the effect of ensuring the security of the document data.

Further, the projector switches display contents based on the identifier of the portable device and the display request.
This eliminates the need for the user to reconnect the cables, thereby improving the efficiency of switching display contents.

Further, when the document data is obtained from the information server via the public network, the communication fee can be charged to the owner of the portable device. This has the effect of eliminating the need.

[Brief description of the drawings]

FIG. 1 is a diagram showing a system configuration of an information display system according to an embodiment of the present invention.

FIG. 2 is a diagram illustrating an example of a screen and button arrangement of the mobile device of FIG. 1;

FIG. 3 is a flowchart showing an operation outline of the information display system of FIG. 1;

FIG. 4 is a flowchart showing a continuation of the operation outline of FIG. 3;

FIG. 5 is a diagram showing an example of a screen displayed in a telephone mode of the mobile device of FIG. 1;

FIG. 6 is a diagram illustrating an example of a screen displayed in the server access mode, the page operation mode, and the projector control mode of the mobile device in FIG. 1;

FIG. 7 is a block diagram showing a detailed configuration of the mobile device of FIG. 1;

FIG. 8 is a block diagram illustrating a detailed configuration of the projector in FIG.

FIG. 9 is a block diagram showing a detailed configuration of the information server of FIG. 1;

FIG. 10 is a flowchart showing a flow of operation of the mobile device of FIG. 1 when a user makes a connection request to the information server of FIG. 1;

FIG. 11 is a flowchart showing a flow of operation of the information server of FIG. 1 when a connection request is received from the mobile device of FIG. 1;

FIG. 12 is a flowchart showing a flow of operation of the mobile device of FIG. 1 when a document list is received from the information server of FIG. 1;

13 is a flowchart showing a flow of operation of the mobile device of FIG. 1 when a user issues a connection request to the projector of FIG.

14 is a flowchart showing a flow of operation of the projector of FIG. 1 when a connection request is received from the mobile device of FIG.

FIG. 15 is a flowchart showing a flow of operation of the mobile device of FIG. 1 when a control program is received from the projector of FIG.

FIG. 16 is a flowchart showing a flow of operation of the mobile device of FIG. 1 when a user operates the document list screen to select a document.

FIG. 17 is a flowchart showing a flow of operation of the information server of FIG. 1 when document information is received from the mobile device of FIG. 1;

FIG. 18 is a flowchart showing a flow of operation of the portable device of FIG. 1 when receiving page information from the information server of FIG. 1;

FIG. 19 is a flowchart showing a flow of operation of the mobile device of FIG. 1 when a user operates a page operation screen to select a page.

20 is a flowchart showing a flow of operation of the information server of FIG. 1 when a page number is received from the mobile device of FIG.

FIG. 21 is a flowchart showing the flow of the operation of the mobile device of FIG. 1 when receiving page content from the information server of FIG. 1;

FIG. 22 is a flowchart showing a flow of operation of the projector of FIG. 1 when receiving page content from the portable device of FIG. 1;

FIG. 23 is a flowchart showing a flow of operation of the mobile device of FIG. 1 when the user operates the page operation screen to change the display state.

FIG. 24 is a flowchart showing a flow of operation of the projector of FIG. 1 when a display state change request is received from the portable device of FIG. 1;

FIG. 25 is a diagram illustrating an example in which a plurality of portable devices communicate with one projector to perform display.

FIG. 26 is a diagram showing an example of an information display system using a conventional projector.

FIG. 27 is a diagram showing an example of an information display system using a projector connectable to a conventional network.

[Explanation of symbols]

 Reference Signs List 100 Mobile device 101 First communication unit 102 Input device 102a Server button 102b Page button 102c Control button 103 Display device 103a Display 104 CPU 105 ROM 106 RAM 107 Second communication unit 200 Projector 201 Communication unit 202 Display unit 203 CPU 204 ROM 205 RAM 300 Information server 301 Communication unit 302 Document database 303 CPU 304 ROM 305 RAM

Claims (18)

[Claims] An information server connected to a first network, a display device connected to a second network,
An information display system, comprising: a portable device connectable to both the first and second networks, wherein the information server communicates with the portable device via the first network. Communication means; document management means for storing and managing document data; request command receiving means for receiving a document data request command from the portable device; and a document data request command received via the request command receiving means. Search means for searching for document data according to the following, and document data transmission means for transmitting the document data searched by the search means to the portable device, wherein the display device is connected via the second network Communication means for communicating with the portable device; document data receiving means for receiving document data from the portable device; and a sentence received via the receiving means. Display means for displaying data, the portable device includes: an input unit for a user to input a command; a display unit for displaying an operation menu and a state of the device; A first communication unit for communicating with the information server; a second communication unit for communicating with the display device via the second network; and Requesting means for requesting document data from a server; document data receiving means for receiving document data from the information server; and document data transmitting means for transmitting document data received via the receiving means to the display device. An information display system, characterized in that: 2. When the communication format on the first network is different from the communication format on the second network, the portable device further displays the document data received by the document data receiving means on the display device. 2. The information display system according to claim 1, further comprising document data conversion means for converting the data into a format that can be transmitted to the document. 3. When there are a plurality of portable devices, each of the portable devices further includes an identifier transmitting unit for transmitting an identifier of the portable device to the information server, and the information server further comprises: 3. The information processing apparatus according to claim 1, further comprising an identifier receiving unit that receives an identifier from each portable device, wherein the document management unit of the information server manages the document based on the received identifier. Information display system. 4. When there are a plurality of portable devices, each of the portable devices further requests a second identifier transmitting means for transmitting an identifier of the portable device to the display device, and a display of document data. Display request transmitting means for transmitting a display request command for the display device to the display device, the display device further comprising: an identifier receiving means for receiving an identifier from each of the mobile devices; and a display request command from each of the mobile devices. The information display system according to any one of claims 1 to 3, further comprising: a display request receiving unit that receives a request; and a display switching unit that switches display contents based on the received identifier and the display request command. . 5. The display device further includes: a program transmission unit configured to transmit a program for controlling the display device to the mobile device; a control command reception unit configured to receive a control command from the mobile device; Control means for controlling the own device based on a control command received via a receiving means, the portable device further comprising: a program receiving means for receiving a control program from the display device; 5. A control program executing means for executing the program thus executed, and a control command transmitting means for transmitting a command for controlling the display device to the display device in accordance with a user's command. Information display system described in. 6. The information server further includes a billing unit that adds billing information in response to an identifier of the portable device when a document data request is made from the portable device. The information display system according to any one of claims 1 to 5, wherein the owner of the portable device is charged according to the amount of the exchanged document data. 7. An information server connected to a first network, a display device connected to a second network,
An information display method for an information display system including a portable device connectable to both the first and second networks, wherein the information server includes the portable device via the first network. A communication process for communicating with a document, a document management process for storing and managing document data, a request command receiving process for receiving a document data request command from the portable device, and a document received by the request command receiving process. A search step of searching for document data according to the data request instruction; and a document data transmission step of transmitting the document data searched for in the search step to the portable device. A communication step for communicating with the portable device via a network; and a document data receiving step for receiving document data from the portable device. A display step of displaying the document data received by the document data receiving step; an input step for the user to input a command; and a display for displaying an operation menu and a state of the apparatus. A first communication step for communicating with the information server via the first network; and a second communication step for communicating with the display device via the second network. A document data requesting step of requesting document data from the information server based on a user command; a document data receiving step of receiving document data from the information server; Transmitting a document data to a display device. 8. When the communication format on the first network is different from the communication format on the second network, the portable device further displays the document data received in the document data receiving step. 8. The information display method according to claim 7, further comprising a document data conversion step of converting the document data into a format that can be transmitted to the device. 9. When there are a plurality of the portable devices, each of the portable devices further includes an identifier transmission step of transmitting an identifier of the own device to the information server. 9. The method according to claim 7, further comprising an identifier receiving step of receiving an identifier from the portable device, wherein the document managing step of the information server manages a document based on the received identifier. Information display method. 10. When there are a plurality of portable devices, each of the portable devices further includes a second identifier transmitting step of transmitting an identifier of the portable device to the display device, and requesting display of document data. A display request transmitting step of transmitting a display request command to the display device to perform the display request command. The display device further includes an identifier receiving step of receiving an identifier from the mobile device, and a display request command from the mobile device. The information display method according to any one of claims 7 to 9, further comprising: a display request receiving step of receiving a request; and a display switching step of switching display contents based on the received identifier and the display request command. 11. The display device, further comprising: a program transmitting step of transmitting a program for controlling the own device to the portable device; a control command receiving step of receiving a control command from the portable device; And a control step of controlling the own device based on the control command. The portable device further executes a program receiving step of receiving a control program from the display device, and executes the received program. The information display according to any one of claims 7 to 10, further comprising: a control program execution step; and a control command transmission step of transmitting a command for controlling the display device to the display device according to a user's command. Method. 12. The information server further includes a billing step of adding billing information corresponding to an identifier of the portable device when document data is requested from the portable device. The information display method according to any one of claims 7 to 11, wherein the owner of the portable device is charged according to the amount of the exchanged document data. 13. An information server connected to a first network, a display device connected to a second network, and a portable device connectable to both the first and second networks. A storage medium storing a computer-implementable program including an information display method of an information display system, wherein the information display method includes: communicating with the portable device via the first network in the information server; A document management process for storing and managing document data; a request command receiving process for receiving a document data request command from the portable device; and a document data request received in the request command receiving process. A retrieval step of retrieving document data according to the command; and transmitting the document data retrieved in the retrieval step to the portable device. A communication process for communicating with the portable device via the second network; and a document data receiving process for receiving document data from the portable device. A display step of displaying the document data received in the document data receiving step; an input step for the user to input a command; and an operation menu and a state of the apparatus. A display step; a first communication step for communicating with the information server via the first network; and a second communication step for communicating with the display device via the second network. A document data requesting step of requesting document data from the information server based on a user's command; and a document data receiving document data from the information server. Storage medium characterized by comprising: a data receiving step, and a document data transmission step of transmitting the document data received by the document data receiving step to the display device. 14. When the communication format on the first network is different from the communication format on the second network, the portable device further displays the document data received in the document data receiving step. 14. The storage medium according to claim 13, further comprising a document data conversion step of converting the document data into a format that can be transmitted to the device. 15. When there are a plurality of the portable devices, each of the portable devices further includes an identifier transmitting step of transmitting an identifier of the own device to the information server. The method according to claim 13, further comprising an identifier receiving step of receiving an identifier from the mobile device, wherein the document managing step of the information server manages a document based on the received identifier. Storage media. 16. When there are a plurality of portable devices, each of the portable devices further includes a second identifier transmitting step of transmitting an identifier of the portable device to the display device, and a request for displaying document data. A display request transmitting step of transmitting a display request command to the display device to perform the display request command. The display device further includes an identifier receiving step of receiving an identifier from the mobile device, and a display request command from the mobile device. The storage medium according to any one of claims 13 to 15, further comprising: a display request receiving step of receiving a display request; and a display switching step of switching display contents based on the received identifier and the display request command. 17. The display device, further comprising: a program transmitting step of transmitting a program for controlling the device to the portable device; a control command receiving step of receiving a control command from the portable device; And a control step of controlling the own device based on the control command. The portable device further executes a program receiving step of receiving a control program from the display device, and executes the received program. 17. The storage medium according to claim 13, further comprising: a control program execution step; and a control command transmission step of transmitting a command for controlling the display device to the display device in accordance with a user's instruction. . 18. The information server further includes a billing step of adding billing information corresponding to an identifier of the portable device when document data is requested from the portable device. 18. The storage medium according to claim 13, wherein the owner of the portable device is charged according to the amount of exchanged document data.