JP2009238060A - Information processing system, server and terminal - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a thin client system which is easy for a user to operate even if a small terminal is used in the thin client system for transmitting a partial area of an image to a client device via a network. <P>SOLUTION: This information processing system is composed of a server 10, and a terminal 20 which receives image data from the server 10 and transmits a command to the server 10, wherein the server 10 changes a window size and a position of a foreground application when an adjustment button command is received from the terminal 20. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an information processing system for displaying an image transmitted from a server on a screen of a terminal, which can improve the operability of an application by the terminal.

  There is a system called a thin client system in which a thin client terminal and a server are connected via a network. In such a thin client system, the thin client terminal has only the minimum necessary functions, and causes the server to perform most processing via the network. Further, the thin client terminal receives the processing result.

  Therefore, to the user operating the thin client terminal, it seems as if all processing is being performed on the thin client terminal, but in reality, most processing including display control is performed on the server side. The thin client terminal performs only processing that displays image data received from the server and transmits data input by the user to the server.

  By the way, when the screen size of the thin client terminal is smaller than the drawing area created by the server, only the portion of the drawing area having the same size as the screen size of the thin client terminal is displayed. Alternatively, a screen in which the entire drawing area is reduced is created and displayed on the screen of the thin client terminal.

  Patent Document 1 discloses a thin client system that switches between a real display that displays only a part of a server-side drawing area and a whole display that displays a reduced drawing area in accordance with a user's selection. It is disclosed.

JP 2007-272449 A

  In the thin client system as described above, when a small mobile device is used as a terminal, these devices are usually operated with a touch panel. For this reason, such devices are not well suited for operations such as changing the position of an application window or pointing a small button correctly.

  In Patent Document 1, when real display is performed, the user needs to move the position of the display area of the terminal many times in order to operate icons, menus, and the like. There is a problem that it is difficult to operate. Further, even when the entire display is performed, the icons and menus are also reduced, and there is a problem that it is difficult for the user to operate with a small mobile device.

  Therefore, an object of the present invention is to provide a thin client system that is easy to operate for a user even if a small terminal is used in a thin client system that transmits a partial area of an image to a client device via a network. To do.

  The first server of the present invention is a server that extracts a part of the desktop and transmits it to the terminal. When notified from the terminal, the first server is displayed in the desktop of the application executed on the server. The window is changed to fit in the partial area.

  The second server of the present invention is a server that extracts a part of the drawing area and transmits the extracted area to the terminal. When the receiving means receives the notification from the terminal, the receiving means receives the notification. And changing means for changing a display area displayed in the drawing area of the application executed on the server so as to fit in the partial area.

  An information processing system according to the present invention includes a server and a terminal connected to the server, and the server is a server that transmits a part of a drawing area to the terminal, and receives notification from the terminal. When there is, the display area displayed in the drawing area of the application executed on the server is changed so as to fit in the partial area.

  The program according to the present invention sets a display area displayed in the drawing area of the application when a predetermined command is received from the terminal to a server that sends a part of the drawing area to the terminal. A window management step for changing to fit in a region of a part, an image generation step for generating an image of the entire drawing region, and extracting the partial region to be transmitted to the terminal from the image, and the part A transmission step of transmitting the region to the terminal.

  According to the present invention, in a thin client system that transmits a partial region of an image to a client device via a network, it is possible to provide a thin client system that is easy for a user to operate even if a small terminal is used.

  The best mode for carrying out the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram for explaining an information processing system according to an embodiment of this invention.

  Referring to FIG. 1, the information processing system includes a server 10 and a terminal 20 connected to the server 10 via a network.

  First, the outline of the information processing system according to the present embodiment will be described. This information processing system includes a server 10 and a terminal 20 that receives image data from the server 10 and transmits a command to the server 10. 10 receives the adjustment button command from the terminal 20 and changes the window size and position of the foreground application. This will be described in detail below.

  The server 10 includes a control unit 11 and a storage unit 12. The control unit 11 logically includes an image generation unit 31 and a window management unit 32 by reading the program stored in the storage medium into the storage unit 12 and executing the program. The image generation unit 31 may be configured with dedicated hardware.

  On the other hand, the terminal 20 includes a control unit 21, a display control unit 22, a display unit 23, and an input unit 24. The terminal 20 is a so-called thin client that receives an image to be displayed on the screen of the terminal 20 from the server 10 and transmits a command input on the terminal 20 to the server 10. The user operates while looking at the screen of the terminal 20, and the terminal 20 transmits a command input by the operation to the server 10. Then, the server 10 performs a predetermined process based on the command.

  Next, the operation of the present embodiment will be described. FIG. 2 is a flowchart for explaining the operation of the server 10, and FIG. 3 is a flowchart for explaining the operation of the terminal 20.

  First, the operation of the server 10 will be described. Referring to FIG. 2, in server 10, control unit 11 checks whether the command received from terminal 20 is an adjustment button command (step S11). If the command is an adjustment button command, the window management unit 32 changes the window size of the foreground application to a size that fits in the image area to be transmitted to the terminal 20. Further, the window position of the foreground application is changed to the position of the area of the image to be transmitted to the terminal 20 (step S12). The position and size of the image area transmitted to the terminal 20 are stored in the storage unit 12 in advance. Note that the position and size information of the image area transmitted to the terminal 20 may be received from the terminal 20 whenever necessary.

  Next, the image generation means 31 generates an image of the entire desktop that can be drawn by the server 10 (step S13). An image region to be transmitted to the terminal 20 is extracted from this image, and a transmission image is generated (step S14). Furthermore, the control part 11 transmits a transmission image to the terminal 20 (step S15).

  Next, the operation of the terminal 20 will be described with reference to FIG. The input unit 24 checks whether or not the adjustment button has been pressed by the user (step S21). If the adjustment button is pressed, the control button 21 transmits an adjustment button command to the server 10 (step S22). Next, the control unit 21 receives image data from the server 10 (step S23). The received image data is displayed on the display unit 23 by the display control unit 22 (step S24).

  Here, how the window size and position are changed in step S12 will be described with reference to FIGS. 4 and 5. FIG. FIG. 4A shows an arrangement before the window size and position are changed. The desktop 101 that can be drawn by the server 10 has a size of, for example, 1280 dots × 768 dots. On top of that, multiple applications can open and operate. Of these windows, only the foreground application window 103 currently operated by the user is shown.

  On the other hand, the display screen of the terminal 20 is smaller than the size of the desktop 101 and is, for example, 800 dots × 480 dots. A terminal image area 102 which is an area of image data transmitted from the server 10 for display on the terminal 20 is illustrated. FIG. 4B shows the state of the display screen on the terminal 20 at this time.

  FIG. 5 shows the arrangement after changing the size and position of the window. As shown in FIG. 5A, the window 103 of the foreground application is changed to a size that can be accommodated in the terminal image area 102, and the position is also moved to the position of the terminal image area 102. FIG. 5B shows the state of the display screen on the terminal 20 at this time. Note that the size of the window 103 may be the same size as the terminal image area 102.

  In the present embodiment, when the adjustment button command is received by the server 10, the window of the foreground application is changed. However, the window of the application designated in advance may be changed. In this case, information on the application to be changed needs to be stored in the storage unit 12.

  In the present embodiment, a plurality of applications to be changed can be designated. In this case, it is necessary to prepare a plurality of adjustment buttons and add information for identifying which button is pressed to the adjustment button command. In this case, the server 10 stores information associating each button with an application in the storage unit 12 in advance.

  As described above, according to the present embodiment, the entire desktop screen generated by the server 10 is not reduced, but the window of the currently operated application is displayed on the screen of the terminal 20 as required by the user. This makes it easy to perform operations such as menus and icons that are often arranged at the periphery of the window.

It is a block diagram for demonstrating the information processing system of embodiment of this invention. 4 is a flowchart for explaining the operation of the server 10. 4 is a flowchart for explaining the operation of the terminal 20. It is a figure explaining the relationship between the desktop before a window change, and a terminal screen. It is a figure explaining the relationship between the desktop after a window change, and a terminal screen.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Server 11 Control part 12 Storage part 20 Terminal 21 Control part 22 Display control part 23 Display part 24 Input part 31 Image generation means 32 Window management means

Claims (11)

  In the server that extracts a part of the desktop and sends it to the terminal, when the notification is received from the terminal, the window displayed in the desktop of the application executed on the server is displayed in the part of the area. A server characterized by being modified to fit. A server that extracts a part of the drawing area and sends it to the terminal.
Receiving means for receiving notifications from the terminal;
When the receiving unit receives the notification, the receiving unit includes a changing unit configured to change a display area displayed in the drawing area of the application executed on the server so as to fit in the partial area. A server characterized by   The change means changes the display area displayed in the drawing area of the application operated by the operator of the terminal so as to fit in the partial area. The listed server.   The server according to claim 2, wherein the changing unit changes a display area displayed in the drawing area of a predesignated application so as to fit in the partial area.   The server according to claim 2, wherein the changing unit changes a display area displayed in the drawing area of the application designated by the notification so as to fit in the partial area. The server
Image generating means for generating an image of the entire drawing area and extracting the partial area to be transmitted to the terminal from the image;
6. The server according to claim 2, further comprising transmission means for transmitting the partial area to the terminal. A server and a terminal connected to the server,
The server is a server that extracts a part of a drawing area and transmits the extracted area to the terminal. When notified from the terminal, the server is displayed in the drawing area of an application executed on the server. An information processing system characterized by changing a display area so as to fit in the partial area. To the server that sends a part of the drawing area to the terminal,
A window management step for changing a display area displayed in the drawing area of the application so as to fit in the partial area when a predetermined command is received from the terminal;
An image generation step of generating an image of the entire drawing area and extracting the partial area to be transmitted to the terminal from the image;
A program for causing a terminal to transmit the partial area.   The window management step is configured to change a display area displayed in the drawing area of an application operated by an operator of the terminal so as to fit in the partial area. 8. The program according to 8.   9. The program according to claim 8, wherein the window management step changes a display area displayed in the drawing area of a predesignated application so as to fit in the partial area.   9. The program according to claim 8, wherein the window management step changes a display area displayed in the drawing area of the application designated by the command so as to fit in the partial area.

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