JP2000267968A - Picture sharing system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a picture sharing system suited to operation to be executed by plural users in cooperation. SOLUTION: The picture sharing system has a data communication network, a non-shared computer for executing a non-shared application and one or more shared computers for executing shared applications. An image control part in the non-shared computer receives image information to be the processing contents of a shared application prepared by an image preparation part in the shared computer through the data communication network and displays the received information on an image display part as background images 1502a, 1502b or the like. A false three-dimensional image 1501a to be the processing contents of a non-shared application is displayed on the background images 1502a, 1502b.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a screen sharing system for supporting cooperative work using a computer connected to a network.

[0002]

2. Description of the Related Art At present, many groupware systems in a broad sense for supporting remote cooperative work on a computer have been proposed. The components of these groupware systems include a sharing management mechanism for information by a plurality of users realized by using a database function and the like, and a user interface for displaying the shared information on a screen and providing an operation for the shared information. .

A synchronous groupware application such as a co-drawing system and an integrated groupware platform provide a cooperative work space such as a shared desktop screen and a shared canvas that can be accessed by a plurality of users. By displaying the cooperative workspace as a screen area on each user's computer,
It realizes information sharing and transmission. For example, reference: M. Sohlenkamp and G. Chwelos. “Integrating comm
unication, cooperation and awareness: The diva vir
tual office environment ”, Proc. ACM CSCW '94, 199
4 etc., to realize groupware, Fig. 1,
A screen sharing method as shown in FIG. 2 is disclosed. FIG.
Is a screen division type, and by dividing the entire screen 101 or one window, the shared area 102
And the non-shared area 103 are displayed. The method of FIG. 2 is a window type, in which a shared window 202 and a non-shared window 203 are individually displayed on a non-shared background 201 and can be freely moved.

[0004]

However, in the above-described conventional screen sharing method of the screen division type as shown in FIG. 1, a considerable screen area is used for the shared area, and the non-shared area is reduced. It is not suitable to keep the shared screen displayed at all times.

In the window-type screen sharing method shown in FIG. 2, an application used by an individual and a shared application are displayed on the screen in a mixed manner. Another problem is that a sharing window must be activated every time the screen is shared. In addition, since the windows can be moved freely, the positional relationship of the shared windows on the screen differs for each user, and the graphical user interface (GU)
I: Cooperative work depending on Graphical User Interface (for example, joint drawing work using a shared pointer, etc.)
Then, it becomes an obstacle to work.

An object of the present invention is to provide a screen sharing system suitable for a plurality of users to work in cooperation.

[0007]

According to the present invention, there is provided the following screen sharing system.

That is, the data communication network includes a non-shared computer connected to the data communication network for executing a non-shared application, and a shared computer for executing a shared application. , An image display unit, and an image control unit that creates and displays an image to be displayed on the image display unit, wherein the shared computer creates an image for displaying the processing content of the shared application. A creating unit, wherein the image control unit receives, via the data communication network, image information of the processing content of the shared application created by the image creating unit of the shared computer, and the image of the non-shared computer A display unit displays the background image as a background image, and pseudo-three-dimensionally displays the background image on the background image. A screen sharing system, characterized in that to display an image of the processing contents of the shared application.

[0009] In the above screen sharing system,
The image control unit of the non-shared computer reduces the size of the image created by the image creation unit of the shared computer at a predetermined ratio for the pseudo three-dimensional display, and reduces the brightness. It is possible to configure so as to perform darkening processing at a predetermined ratio.

[0010] In the above screen sharing system, the shared computer stores the shared application in two.
The shared computer creates an image for displaying the processing content for each of the shared applications, and the image control unit of the non-shared computer generates a pseudo three-dimensional image having a depth as the background. It is possible to adopt a configuration that creates and displays the images of the two or more types of shared applications at different depth positions of the background.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS As an embodiment of the present invention, the present inventors provide a new visualization method suitable for a groupware system.

A space where a plurality of users work in cooperation can take a hierarchical structure as shown in FIG. Here, a case where there is a sharing level having a three-layer structure will be described as an example. In this structure, each user works mainly in the individual work spaces 1401a and 1401b, but for that purpose, the group work spaces 1402a and 1402
It is necessary to refer to the information in 02b. If each user works in the group work space,
It is necessary to refer to the shared information of the shared space 1403 of the entire group on the level.

Therefore, the present inventors look down on FIG. 14 from the viewpoint of the user who is the worker, and thereby, as shown in FIG. 15, the most frequently used application for personal work (personal work space). 1401a, 1401
b) Windows 1501a and 1501b are displayed on screen 15
Displayed at the forefront of 04. The group shared information (group work space 1402a, 1402a)
The windows 1502a and 1502b of b) are displayed, and the windows 1503a and 1503b of the entire shared information (the entire group shared space 1403) with the least usage frequency and reference frequency are displayed further behind. Thereby, the work space is visualized. In FIG. 15, the layer number assigned to each window 1501a and the like is a number indicating the depth. Layer 1 indicates the front (individual), layer 2 indicates the middle (group), and layer 3 indicates the back (entire).

That is, the screen display method of the present embodiment is a visualization method using a parameter called depth to express a sharing level. Although it is a three-dimensional display,
As shown in a specific example described later, the screen 150 in FIG.
4 is feasible.

The concept of simply displaying information having a high use frequency and a high reference frequency in front is a technique often used in information visualization. In information visualization, many methods have been proposed for efficiently displaying various information spaces on a screen having a limited size. However, in the present embodiment, not only information having a high use frequency and a high reference frequency is displayed on the near side, but also the degree of interest (DOI: DOI:
Degree Of Interest) is estimated, and information is displayed or thinned out according to the degree of interest to realize efficient display.
Specifically, a perspective (perspective) method is used in which information that is more important to the user is displayed closer to the user. In addition, a method of displaying a lighter color or a darker color for a farther object can be used in combination.

In most of the conventional two-dimensional screen sharing systems, only the choice of displaying or not displaying the shared information can be made. However, in the present embodiment, by using the depth information, the personal information can be saved. Shared information with a lower degree of interest can always be displayed to a lesser degree.

The concept of the degree of interest described above is also effective in supporting the transmission of awareness in groupware. Here, awareness refers to the awareness of an unconscious movement state of another person. In particular, in a synchronous groupware system in which multiple users work on a single shared application at the same time, by supporting the transmission of the user's awareness, it is possible to grasp the behavior of the other party who is not necessarily aware of communication with themselves. Because of that, smooth communication becomes possible. For example, in a collaborative drawing tool, displaying the position of the mouse pointer of another person has the same effect of having implicit communication with the collaborator, and two or more people can be simultaneously in the same position. Changes can be prevented. In addition, in order to support awareness with a system, it is desirable to present information with an appropriate intensity similarly to awareness in the real world. That is, it is desirable that the shared information be presented in a form that is not too noisy.

The screen sharing system using depth according to the present embodiment can display the window of the shared application as a background image even when not in use, so that the work of another user can be grasped. Since the update of the shared information can be grasped as a background, the awareness is excellent.

In a shared screen environment, it is desirable to be able to smoothly switch between individual work and cooperative work. In the screen sharing system using the depth according to the present embodiment, the user can intuitively distinguish and switch between the personal space and the shared space by moving the viewpoint in the front, rear, left, and right directions in the three-dimensional space. That is, as shown in FIG. 16, when the user mainly deals with information at the group level (layer 2 and layer 3), the user only has to move the user's viewpoint backward in the three-dimensional space. Then, the personal space is not displayed on the image of the computer of the user, and the desktop screen of the computer shared by the group is displayed in full screen on the screen of the user, so that the information at the group level can be easily handled.

Moving the user's viewpoint left and right has the meaning of selecting one of them when there are a plurality of shared computers.

In this way, by expressing the sharing level by the depth, the switching can be realized by an intuitive user's viewpoint moving operation.

FIG. 17 shows an example of an actual screen display in the screen sharing system of the present embodiment. In FIG. 17, the entire figure is a desktop screen 150 of the entire surface of the personal image display device.
4. In the windows of FIG. 17, those having the same reference numerals as the windows of FIG. 15 indicate the same windows. The window 1501a and 1501b of the application for personal work and the icon 1501c for personal work space are displayed at the foreground hierarchy. That is, the foremost layer is the window system itself in the conventional GUI. In FIG. 17, word processing software is activated in the window 1501a.

The group work space is displayed as a background (wallpaper) of the personal work space. That is, the group work space is divided into two hierarchies, one for group work and the other for overall work. In the middle hierarchy, windows 1502a and 1502 of two types of shared applications for group work are provided.
2b and a group work icon 1502c are displayed. In the innermost hierarchy, there are windows 1503a and 1503b of two types of shared applications for overall work.
And an icon 1503c for the overall operation.
In FIG. 17, windows 1502a and 1502b have
Word processing software has been started, and the window 1503
In a, calendar software is activated.

The user can operate the applications 1501a and 1501b in the personal work space in the window as in the usual case.
01a can be changed, and the position of the window 1501b can be changed. Also, windows 1502a, 1502b, 150 of the group work space
By moving the mouse pointer into the windows 3a and 1503b, the user can work in the windows 3a and 1503b in the same manner as the windows 1501a and 1501b for personal work. Also, windows 1502a, 1502b, 1503a, 1503b of the group work space
Since the application is a shared object of all users connected via the network, it is possible to configure anyone to open and move windows, and only predetermined specific users can It is also possible to adopt a configuration that can be started and stopped.

In the present embodiment, the size of the middle layer in the group work space is about 7/8 each of the length and width of the personal work space in the foreground in both the vertical and horizontal directions. This is realized by expanding the desktop image in the memory and reducing it. The size of the innermost layer is about 7/8 of the length and width of the middle layer.

Further, in the present embodiment, the screen 1504 is configured to display the color about 20% darker as it goes deeper one layer at a time. This makes it easy for the user to grasp the hierarchy of the window on the screen.

Although the number of hierarchies can be theoretically increased to infinity, it is considered that the number of hierarchies is easy to use by humans, and the necessary and sufficient number is about three hierarchies.

In order to easily switch the work space on the screen, for example, if the user moves the mouse pointer to the upper end of the screen and clicks the mouse pointer, the user can move to a window one level deeper. , By clicking on the lower end, it is possible to return to the window of the hierarchy immediately before.

If the user has a plurality of personal work spaces or belongs to a plurality of group spaces, the user can move between the windows by moving the mouse pointer to the right and left ends of the screen and clicking. It can be configured to be able to

Further, as shown in FIG. 19, windows 1501a and 1501 displayed on the near side of the screen 1504 are displayed.
By not displaying the contents of 2a, it is possible to display only the frames 1501d and 1502d of these windows. In this case, screen 1
A window 1503a displayed on the back side of 504,
The user can access the information by seeing 1503b through frames 1501d and 1502d. This makes it easy for a user who is working using the entire personal work space to temporarily refer to the shared information.

Hereinafter, the screen sharing system according to the present embodiment will be specifically described.

The configuration of the screen sharing system according to the present embodiment will be described with reference to FIGS. As shown in FIG. 4, the screen sharing system according to the present embodiment includes a non-shared application computer 403a,
403b and the shared application computer 40
4a and 404b. Hereinafter, the non-shared application computer is referred to as a non-shared computer. The non-shared application computer is referred to as a non-shared computer. Non-shared computer 40
Reference numerals 3a and 403b denote image display devices 402a,
402b and input devices 406a and 406b are connected. The image display devices 405a and 405b and the input devices 407a and 407b are connected to the shared computers 404a and 404b, respectively.

The non-shared computer 403a includes a CPU 1001, a memory 1002, an image display control interface 1004, a network interface 1008, and a disk device 1003 as shown in FIG. The non-shared computer 403a is connected to the input device 406a.
A keyboard 1006 and a mouse 1007. Non-shared computer 403b and input device 406
b has the same configuration as the computer 403a and the input device 406a. Also, the shared computer 404a
Similarly, a CPU 1001, a memory 1002, an image display control interface 1004, a network interface 1008, and a disk device 1003 are built in. The shared computer 404a includes a keyboard as the input device 407a. Shared computer 404
b and the input device 407b have the same configuration as the computer 404a and the input device 407a.

The shared computers 404a and 404b
These are computers for executing different types of shared application software.
3 stores the shared application 1015. In addition, when the non-shared computers 403a and 403b request the activation and termination of the shared application 1015, the activation processing program 1013 and the termination processing program 1014 each having a function of determining whether to permit the activation and termination are also provided in the disk device 1003. Is stored in

On the other hand, non-shared computers 403a, 40
Reference numeral 3b denotes a computer for each user to work with a personal application.
Stores a non-shared application 1012 for personal work. The disk device 1003 also stores a startup processing program 1010 and a termination processing program 1011 for activating and ending the non-shared application 1012 for its own personal work and the shared application 1015 in the shared computers 404a and 404b. I have. Further, in the disk device 1003,
The activated non-shared application 1012 and shared application 1015 are connected to each other as described in FIG.
A three-dimensional display processing program 1009 for displaying a three-dimensional hierarchy is also provided.

Each computer 403a, 403b, 40
4a and 404b mutually transmit and receive information via the data communication network 401 and the network interface 1008 by a general communication application using HTTP (Hyper Text Transfer Protocol) as a communication protocol.

Next, the operation of the image sharing system according to this embodiment will be described.

First, the non-shared computers 403a, 40
When 3b is started, the three-dimensional display processing program 1009
The startup processing program of FIG. 5 in FIG. 5 operates, and the shared background 302 shown in FIG.
02b on the screen 1504 (step 5 in FIG. 5).
02). This shared background image 302 is shared window 1
503a and 1502a, and the icon 1501 in FIG.
c, 1502c, and 1503c (not shown in FIG. 3). In addition, the shared background 302 has 45 corners from the four corners toward the center so that the screen has depth.
A line is drawn every time. Icons 1501c, 1502
c and 1503c are changed in size so as to be located at the first layer in the foreground, the second layer in the middle, and the third layer at the back as shown in FIG. The brightness of the display is changed so that it goes darker.

At this time, if the shared application 1015 of the shared computer 404a has already been started at this time, the screen displayed on the image display device 405a is displayed in the shared window 1503a at the innermost third hierarchy. , Received via the data communication network 401 and the network interface 1008, and
4 times, the brightness is converted to 16/25 times and displayed. A specific method for converting the size and brightness is described in FIG.
This is the same as the conversion method of the three-dimensional display processing of No. 3. Also, the shared application 101 of the shared computer 404a
If 5 is not activated, only the shared window 1503a is displayed, and the content is not displayed. Similarly, the shared application 1 of the shared computer 404b has already been displayed in the shared window 1502a on the second layer.
015, the image display device 405b is activated.
Is received via the data communication network 401 and the network interface 1008,
The size is changed to 7/8 times and the brightness is changed to 4/5 times for display. If the shared application 1015 of the shared computer 404b has not been activated, the shared window 15
02a is displayed, but no content is displayed.

After the shared background 302 is displayed, a non-shared window 1501a for personal work is displayed on the screen 1.
504 (step 504 in FIG. 5).

Next, the non-shared computers 403a, 403a,
The process of starting an application in 03b will be described.

In the non-shared computers 403a and 403b, the icons 1501c and 1
When the application is started by the operation of the keys 502c and 1503c or the operation of the keyboard 1006,
The application activation processing program 1010 operates, and first, as shown in FIG. 6, it is determined whether the application that has been activated is the non-shared application 1012 or the shared application 1015 (step 60).
2). In the case of the non-shared application 1012, the non-shared application 1
012 is started (Step 603), and Step 701 is started.
The content of the non-shared window 1501a is updated by the screen update process described above, and the processing content of the non-shared application 1012 is displayed.

The screen update processing in step 701 is the processing shown in FIG. 7. When there is a screen update request from an application, it is determined whether the application requesting the update is the shared application 1015 or the non-shared application 1012. (Step 702) If the application is the non-shared application 1012, the non-shared window 1501a is updated (Step 703). In the case of the shared application 1015, the shared window 15 corresponding to the shared application 1015
02a and 1503a are updated (step 70)
4). At this time, a three-dimensional display processing program 1009 is executed (step 1301).

This three-dimensional display processing program is shown in FIG.
The screen displayed on the image display device 405a of the shared computer 404a is displayed in the shared window 1503a of the third layer at the innermost position of the screen (step 1302). For that purpose, first, image information of the image display device 405a of the shared computer 404a is received via the data communication network 401 and the network interface 1008, and the size of the image is
9/64 times and the brightness is converted to 16/25 times and displayed. For example, as the conversion method, specifically, based on the bitmap information of the screen displayed on the image display device 405a, 15 dots are thinned out every 64 dots in the vertical and horizontal directions, and the brightness of each dot is reduced. Is multiplied by 16/25.

A shared window 1502 of the second hierarchy
a shows the image display device 40 of the shared computer 404b.
Receive the screen displayed on 5b and reduce the size to 7/8
The brightness and the brightness are converted to 4/5 and displayed (step 1303). The non-shared window 1501a displays the screen of the non-shared application 1012 in the same size and brightness (step 1304).

When the application that has been started in step 602 in FIG. 6 is the shared application 1015, the shared computer 404a or 404b corresponding to the shared application 1015 is sent to the data communication network. 40
1 and a start operation request via the network interface 1008. Thereby, the shared computer 404
a, 404b of the shared application activation processing program 1013 is operated. This program is, as shown in FIG. 11, the non-shared computer 403a or 403 that has requested the start operation of the shared application 1015.
b of the non-shared computers 403a and 403b to determine whether or not the
et Protocol) It is determined from identification information such as an address (step 1104). If the computer is permitted to start, the shared application 1015 is started (step 1105). Accordingly, the image display device 405 of the shared computer 404a or 404b
In a or 405b, the shared application 1015 is displayed on the entire screen. At the same time, the sharing window 15 of the non-shared computers 403a and 403b
02a or 1503a, shared application 1
015 is displayed by the screen update.

If the non-shared computer 403a or 403b that has requested the start operation of the shared application 1015 in step 1104 in FIG. 11 is a computer that is not permitted to start, the process ends without performing any processing ( Step 1106).

Note that the shared application 1015
The operation of the shared application 1015 is received from all the non-shared computers 403a and 403b on which the shared application 1015 is displayed.
Specifically, the pointer of the mouse 1007 of the non-shared computers 403a and 403b is set to the window 1502.
a, 1503a, by moving
Data communication network 401 and network interface 10
08, the shared application 1015 can be operated. In addition, the shared application 10
Windows 1502a and 1503 in which 15 is displayed
Changes in the size and position of a are also accepted. The position of the mouse pointer for these operations depends on the shared application 1
015 is displayed on the screens of all the computers on which it is displayed. When the screen of the shared application 1015 is updated by the operation, the background images of all the computers on which the shared application 1015 is displayed are updated by the screen updating process.
Therefore, the background images are displayed in the windows 1502a and 1502a.
The size, position, and display contents of 03a are common to all the non-shared computers 403a and 403b. Thus, the user can recognize the work of another user by displaying an image in the background shared window.

Next, the non-shared computers 403a, 403a,
The process of terminating the application in 03b will be described.

In the non-shared computers 403a and 403b, the icons 1501c and 1
When the termination of the application is received by the operation of the keys 502c and 1503c or the operation of the keyboard 1006,
The application termination processing program 1011 operates, and as shown in FIG. 8, first, it is determined whether the application that has received the termination request is the non-shared application 1012 or the shared application 1015 (step 80).
2). If the application is the non-shared application 1012, the non-shared application 1012 is terminated (step 803), and the non-shared window 1501a is deleted by the screen updating process in step 701 described above.

If the application that has received the termination request in step 802 is the shared application 1015, the shared computer 404a or the shared computer 40 corresponding to the shared application 1015
4b via the data communication network 401 and the network interface 1008. As a result, the shared application termination processing program 1014 of the shared computers 404a and 404b is operated. This program determines from the identification information of the non-shared computers 403a and 403b whether or not the non-shared computer 403a or 403b that has requested the end operation of the shared application 1015 is a computer that has been permitted to end in advance, as shown in FIG. (Step 1204). If the computer is permitted to terminate, the shared application 1015 is terminated (step 1105). At the same time, the closed shared window 1 of the non-shared computers 403a and 403b is closed.
Screen update processing (Step 7)
01) causes nothing to be displayed. Step 1
Non-shared computer 403 requesting an end operation in 204
If a and 403b are computers that have not been permitted to terminate the shared application 1015 in advance, the process ends without performing any processing.

Next, the non-shared computers 403a, 403a,
The ending operation of the system when the ending operation of the system 03b is performed will be described.

In this case, the end processing program shown in FIG. 9 in the three-dimensional display processing program 1009 operates, and first, the non-shared window 1501a is deleted from the screen 1504 (step 902).
02a, 1503a and icons 1501c, 150
The shared background 302 including 2c and 1503c is displayed on the screen 1504.
(Step 502).

As described above, in the screen sharing system according to the present embodiment, as shown in FIGS. 3, 17, and 18, the shared windows 1502a and 1503a are used as the background of the non-shared window 1501a for personal work. Can be displayed. Moreover, this shared window 1502
Since a and 1503a are displayed in a pseudo three-dimensional space that looks deep with a simple display process of converting between size and brightness, the user can determine which windows are private non-shared windows and which windows are not. It can be easily recognized whether the window is a shared window. In addition, the shared windows 1502a and 1503a can be displayed in the three-dimensional space in a hierarchical display of the deepest position and the intermediate position by a simple display of conversion of size and brightness, so that applications with a high degree of sharing can be displayed. Is displayed on the back side, the difference in the degree of sharing can be easily recognized.

Further, in the screen sharing system of the present embodiment, even if another user is working on the shared application, the content of the shared window is updated by the screen update processing of FIG. Can be recognized in real time. At this time, the contents of the shared window are displayed as if they exist at the back of the screen,
Since the size of characters and codes is also small and displayed dark, there is an advantage that a user working in the non-shared window 1501a for personal work does not hinder the work and can recognize unconsciously. .

As described above, according to the screen sharing system of the present embodiment, since the shared screen is the background, it does not occupy the screen area and can be always displayed. Also, since the background screen is displayed from the start,
Screen sharing is always possible from the time of startup without starting a sharing window for screen sharing. In addition, since the screen is shared as a background screen, the position of the sharing window for all users is unified, and a graphical user interface (Graphica
l Support for collaborative work depending on the user interface is facilitated.

The image sharing system of this embodiment shown in FIG. 4 has two non-shared computers 403a and 403b.
And two shared computers 404a and 404b, but these are not limited to two, and can be two or more. When three or more shared computers are used, the shared window 1502 in FIG.
a, 1502b, it is also possible to provide two or more windows in one layer and to display different shared applications, respectively, to increase the number of shared layers, and to share one shared window in one layer. It is also possible to display only.

[0058]

As described above, according to the present invention, a screen sharing system suitable for a plurality of users to work in cooperation can be provided.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram showing an example of a display screen according to a conventional screen division type screen sharing method.

FIG. 2 is an explanatory diagram showing an example of a display screen according to a conventional window-type screen sharing method.

FIG. 3 is an explanatory diagram showing a configuration of a display screen of the screen sharing system according to the embodiment of the present invention.

FIG. 4 is an explanatory diagram showing the overall configuration of the screen sharing system according to the embodiment of the present invention;

FIG. 5 is a flowchart showing a startup processing operation of the screen sharing system of FIG. 4;

FIG. 6 is a flowchart showing an application activation processing operation of the screen sharing system of FIG. 4;

FIG. 7 is a flowchart showing a screen update processing operation of the screen sharing system of FIG. 4;

FIG. 8 is a flowchart showing an application end processing operation of the screen sharing system of FIG. 4;

FIG. 9 is a flowchart showing an end processing operation of the screen sharing system of FIG. 4;

FIG. 10 is a block diagram showing a detailed configuration of a part of the screen sharing system of FIG. 4;

FIG. 11 is a flowchart showing a startup processing operation of a shared application of the screen sharing system of FIG. 4;

FIG. 12 is a flowchart illustrating an end processing operation of a shared application of the screen sharing system in FIG. 4;

FIG. 13 is a flowchart showing a three-dimensional display processing operation of the screen sharing system of FIG. 4;

FIG. 14 is an explanatory diagram showing a concept of screen display in the screen sharing system according to the embodiment of the present invention;

FIG. 15 is an explanatory diagram showing an arrangement of windows of a three-dimensional display screen by the screen sharing system according to one embodiment of the present invention.

FIG. 16 is an explanatory diagram illustrating switching between forward and backward movement and left and right movement of screen display in the screen sharing system according to an embodiment of the present invention.

FIG. 17 is an explanatory diagram showing an example of a three-dimensional display screen by the screen sharing system according to one embodiment of the present invention.

FIG. 18 is an explanatory diagram showing an example of a three-dimensional display screen by the screen sharing system according to one embodiment of the present invention.

FIG. 19 is an explanatory diagram illustrating an example in which a part of a window of a three-dimensional display screen is displayed by using only a frame by the screen sharing system according to the embodiment of the present invention;

[Explanation of symbols]

101: full screen, 102: shared area, 103: non-shared area, 201: non-shared background, 202: shared window, 2
03: non-shared window, 302: shared background, 401 ...
Data communication network, 402a, 402b ... image display device, 4
03a, 403b ... non-shared computer, 404a,
404b: Shared computer, 405a, 405b: Image display device, 406a, 406b, 407a, 407b
... input device, 1001 ... CPU, 1002 ... memory, 1
003: disk device, 1004: image display control interface, 1006: keyboard, 1007: mouse
1008 ... Network interface, 1009 ... 3
Dimension display processing program, 1010: application start processing program, 1011: application termination processing program, 1012: non-shared application,
1013: Shared application start-up processing program
1014: shared application termination processing program
1015: Shared application, 1501c, 150
2c, 1503c... Icons, 1501a, 1501b
... Level 1 non-shared window, 1502a, 1502b
... Level 2 shared window, 1503a, 1503b ...
Shared window of layer 3, 1504... Screen.

 ──────────────────────────────────────────────────の Continued on the front page (72) Inventor Koji Tsukada 1099 Ozenji Temple, Aso-ku, Kawasaki City, Kanagawa Prefecture Inside the Hitachi, Ltd.System Development Laboratory Co., Ltd. (72) Inventor Hidekazu Shiozawa 3-14-1 Hiyoshi, Kohoku-ku, Yokohama, Kanagawa Prefecture Inside Keio University (72) Inventor Junya Noda 3-14-1, Hiyoshi, Kohoku-ku, Yokohama, Kanagawa Prefecture Keio University (72) Inventor Kenichi Okada 3-14-1 Hiyoshi, Kohoku-ku, Yokohama, Kanagawa Prefecture Keio University (72) Inventor Atsushi Matsushita 3-14-1, Hiyoshi, Kohoku-ku, Yokohama, Kanagawa Prefecture Keio F-term at Keio University (Reference) 5B085 BE07 BG07 CE07 5B089 GA11 GB03 HB05 JA16 JB03 LB04 LB07 LB14 5E501 AB30 AC15 AC25 AC34 BA12 CA02 CB02 CB09 DA06 FA06 FA14 FA27 FB02

Claims (5)

[Claims] 1. A non-shared computer, comprising: a data communication network; a non-shared computer for executing a non-shared application connected to the data communication network; and a shared computer for executing a shared application. Comprises an image display unit, and an image control unit that creates and displays an image to be displayed on the image display unit, wherein the shared computer creates an image for displaying the processing content of the shared application An image creation unit, wherein the image control unit receives, via the data communication network, image information of processing content of the shared application created by the image creation unit of the shared computer, and The image is displayed as a background image on the image display unit, and the non-shared image is pseudo-three-dimensionally displayed on the background image. Screen sharing system, characterized in that to display an image of the processing content of the application. 2. The screen sharing system according to claim 1, wherein the image control unit of the non-shared computer has a size of an image created by an image creation unit of the shared computer for the pseudo three-dimensional display. A screen sharing system for reducing the brightness at a predetermined rate and darkening the brightness at a predetermined rate. 3. The screen sharing system according to claim 1, wherein the shared computer has two or more types of the shared application, and the shared computer displays an image for displaying the processing content for each of the shared applications. The image control unit of the non-shared computer creates a pseudo three-dimensional image having a depth as the background, and displays the images of the two or more types of shared applications at different depth positions of the background. A screen sharing system characterized in that: 4. A storage medium storing a processing program to be executed by a first computer connected to a data communication network, wherein the processing program is a second computer connected to the data communication network. Causing the first computer to receive the information of the image created by the first computer, and setting the received image as a background image, and displaying an image indicating the processing content of the application executed by the first computer as the background image. Creating a screen to be displayed in a pseudo three-dimensional manner on the storage medium. 5. A communication network connection means for connecting to a data communication network, an image display device connection means for connecting an image display device, an arithmetic means for executing an application, and display on the image display device. Image control means for creating and displaying an image for receiving image information created by another processing device via the communication network connection means, and displaying the received image on a background. An image showing the processing content of the application being executed by the computing means, a screen for pseudo-three-dimensionally displaying the image on the background image, and outputting the image from the image display device connection means; A processing device for displaying on an image display device.