JP2009244363A - Projector system and projector - Google Patents

Abstract

A projector capable of operating all images in a projection image area of a projector from the terminal apparatus even when the size of a virtual display area set in the terminal apparatus is smaller than the size of a projection image area of the projector. System provision.
An operation area allocation in which an operation area 46 operable from each terminal apparatus 2 is assigned to each terminal apparatus 2 on a projected image area 60 of the projector 1 according to the size of a virtual display area 45 of each terminal apparatus 2 The position on the projected image area 60 of the image 30 in the area other than the operation area 46 assigned to the terminal device 2 is changed to the operation area in accordance with the operation on the operation unit of the unit and the terminal apparatus 2. And an image position changing unit.
[Selection] Figure 1

Description

  The present invention relates to a projector system including a plurality of terminal devices capable of setting a virtual display area, and a projector that projects an image generated by synthesizing image data of images in the virtual display area of each terminal device. The present invention relates to a projector used.

  2. Description of the Related Art Conventionally, projectors that input image information from a computer device or the like, display the image on a liquid crystal display element, and irradiate the liquid crystal display element with light to project it on a projection screen have been widely used. This projector is often used in conferences and the like where a plurality of people participate, and by using such a projector, a plurality of participants can simultaneously discuss while viewing a single enlarged image. Can do.

  Furthermore, in recent years, a projector system has been devised that can project an image or cursor in a virtual display area adjacent to a display unit of a terminal device onto a projected image area of the projector (for example, Patent Document 1).

By using such a projector system, the user of the terminal device, for example, projects and displays only an image for presentation on the projection image area of the projector, and conversely, only the user of the terminal device references during the presentation. Information can be displayed in the display area of the display unit of the terminal device, so that the presentation can be performed more smoothly.
JP 2007-101852 A

  However, such a projector system has a problem that an operation (for example, movement of a cursor, etc.) within the projection image area can be performed only within the virtual display area set in the terminal device. For this reason, when the size (resolution) of the projected image area is larger than the size (resolution) of the virtual display area set in the terminal device, the user of the terminal device, for example, as shown in FIG. Even if an attempt is made to move the cursor 81 in the direction of the image 84 (the direction indicated by the dashed arrow in the figure) in order to operate the image 84 outside the virtual display area 80, as shown in FIG. Since the movement of the cursor 81 is limited within the size of the virtual display area 80, the cursor 81 cannot be moved to a desired location.

  In particular, the problem is that a projector acquires image data of a cursor or an image in a virtual display area of a plurality of terminal devices and projects an image generated by combining the acquired image data, thereby allowing a plurality of people to screen. When collaborative work or the like is performed while viewing a composite image enlarged and projected on a large screen such as the above, the smooth progress of the collaborative work is significantly hindered.

  Therefore, the present invention operates all images in the projection image area of the projector from the terminal apparatus even when the size of the virtual display area set in the terminal apparatus is smaller than the size of the projection image area of the projector. It is an object of the present invention to provide a projector system that can be used and a projector used therefor.

  In order to solve the above problem, the invention described in claim 1 includes a plurality of terminal devices having a display unit and a virtual display region setting unit that sets a virtual display region adjacent to the display region of the display unit, and these In a projector system comprising: a projector that obtains image data of an image in each of the virtual display areas from a plurality of terminal devices via a communication path, and projects an image generated by combining these image data. An operation area allocating unit that allocates an operation area that can be operated from each terminal device on the projected image area of the projector for each terminal device according to the size of the virtual display area of each terminal device, and operation of the terminal device An image for changing the position on the projected image area of an image in an area other than the operation area assigned to the terminal device into the operation area in response to an operation on the unit And having a location changing unit.

  The invention according to claim 2 includes a plurality of terminal devices having a display unit and a virtual display region setting unit for setting a virtual display region adjacent to the display region of the display unit, and communication from the plurality of terminal devices. A projector that obtains image data of an image in each virtual display region via a path and projects an image generated by combining the image data; and the terminal device includes the virtual device An operation unit for operating an image in a display area, image data of an image in the virtual display area, a size of the virtual display area, and information on an operation by the operation unit via the communication path, the projector The projector includes a transmission processing unit that transmits image data of an image in a virtual display area of the plurality of terminal devices, a size of the virtual display area, and the size of the virtual display area A reception processing unit that receives information on the operation via the communication path, and an operation area that can be operated from each terminal device on the projection image area of the projector, to a size of a virtual display area of each terminal device. In response, an operation area allocating section that is allocated to each terminal apparatus, an image generating section that generates image data for projection by synthesizing image data in the virtual display area of each terminal apparatus, and the image generating section An image projection unit that projects an image based on the generated image data for projection, and an area other than the operation area assigned to the terminal device based on the operation information received from the terminal device by the reception processing unit An image position changing unit that changes the position of the image on the projected image area into the operation area.

  The invention according to claim 3 is the invention according to claim 2, wherein the operation unit is for moving and operating a position coordinate of a cursor in the virtual display area, and the image position changing unit. Is based on the operation information received from the terminal device by the reception processing unit, the operation unit of the terminal device tries to move the cursor position beyond the coordinates of the virtual display area assigned to the terminal device. When an operation to be performed is detected, a position on the projection image area of an image in an area other than the operation area assigned to the terminal device is changed into the operation area according to the operation.

  According to a fourth aspect of the present invention, in the third aspect of the present invention, when the image position changing unit includes a plurality of images in an area other than the operation area assigned to the terminal device, An image that changes the position on the projected image area in the operation area among the images of the image above the coordinates of the virtual display area assigned to the terminal device by operating the operation unit of the terminal device. The image is in the direction in which the position is to be moved.

  The invention according to claim 5 is the invention according to claim 3 or claim 4, wherein the image position changing unit has a plurality of images in an area other than the operation area assigned to the terminal device. In this case, an operation to move the cursor position beyond the coordinates of the virtual display area by the operation unit of the terminal device is detected based on the operation information received from the terminal device by the reception processing unit. The position of the plurality of images on the projected image area is sequentially changed within the operation area from an image close to the operation area in accordance with the detected period.

  According to a sixth aspect of the present invention, in the invention according to any one of the second to fifth aspects of the present invention, an image in an area other than the operation area assigned to the terminal device is included in the operation area. A display control unit configured to display a selection menu for selecting an image to be repositioned on the operation area, wherein the image position change unit is information on the operation received from the terminal device by the reception processing unit; When the operation to the selection menu by the operation unit of the terminal device is detected based on the position, the position on the projection image region of the image in the region other than the operation region assigned to the terminal device is determined according to the operation. The operation area is changed.

  According to a seventh aspect of the present invention, in the invention according to any one of the second to sixth aspects, the image position changing unit includes the operation information received from the terminal device by the reception processing unit. Based on the image in the operation area assigned to the terminal device, the position of the image repositioned in the operation area from the area other than the operation area before the position change is performed. It is characterized by returning to the position.

The invention according to claim 8 is the invention according to claim 7, wherein the image position changing unit operates the terminal device based on the operation information received from the terminal device by the reception processing unit. Detecting a movement operation from an area other than the operation area assigned to the terminal device to an area other than the operation area with respect to an image whose position has been changed into the operation area. The position is returned to the position before the position change.

  The invention according to claim 9 is the invention according to claim 7 or 8, wherein the image position changing unit is based on the operation information received from the terminal device by the reception processing unit. When an operation on an image in the operation area assigned to the terminal device by the operation unit of the terminal device is detected, an image whose position is changed in the operation area from an area other than the operation area among images other than the image The position on the projected image area is returned to the position before the position change.

  According to a tenth aspect of the present invention, each of the virtual devices includes a display unit and a virtual display region setting unit that sets a virtual display region adjacent to the display region of the display unit via a communication path. In a projector that obtains image data of an image in a display area and projects an image generated by synthesizing these image data, an operation area that can be operated from each of the terminal devices is provided on the projection image area of the projector. An operation area allocating unit that is allocated for each terminal apparatus according to the size of the virtual display area of each terminal apparatus, and an area other than the operation area that is allocated to the terminal apparatus according to an operation to the operation unit of the terminal apparatus And an image position changing unit that changes the position of the image on the projected image area into the operation area.

  According to the present invention, in response to an operation on the operation unit of the terminal device, the position of the image in the region other than the operation region assigned to the terminal device is changed within the operation region. Therefore, even if the size of the virtual display area set in the terminal device is smaller than the size of the projection image area of the projector, all of the images in the projection image area of the projector can be operated from the terminal device.

[1. Outline of projector system]
Hereinafter, a projector system according to an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a diagram showing an overall system configuration of a projector system in the present embodiment, FIG. 2 is a schematic configuration diagram of a projector used in the projector system in the present embodiment, and FIG. 3 is a projector system in the present embodiment. 4 to 6 are diagrams showing a state in which the position of an image in an area other than the operation area is changed by the image position changing unit in the present embodiment.

  As shown in FIG. 1, the projector system S according to this embodiment includes a projector 1 and a plurality of terminal devices (here, terminal devices 2 a and 2 b) connected to the projector 1 via a communication path 4. Each terminal device 2a, 2b is an application program (hereinafter simply referred to as a cursor 5a, 5b in the virtual display area 45a, 45b of the terminal device 2a, 2b or each terminal device 2a, 2b). The data of the images 30a and 30b generated by the application 1) is transmitted to the projector 1 via the communication path 4, and the projector 1 combines the data as one image data. In this system, an image based on synthesized image data is projected on a large screen such as a screen.

  Here, the position coordinate information of the cursors 5a and 5b transmitted from each terminal device 2 to the projector 1 is limited to the coordinates defined in the virtual display areas 45a and 45b of the terminal devices 2a and 2b. The regions that can be operated by the terminal devices 2a and 2b on the virtual display regions 45a and 45b are the regions 46a and 46b that can be operated by the terminal devices 2a and 2b on the projected image region 60 (hereinafter referred to as “operation regions 46a, 46b ").

  In this case, for example, when the resolution is lower than the projected image area 60 (the size is narrow) like the virtual display area 45a of the terminal device 2a, the cursor 5a and the image 30a in the virtual display area 45a are displayed in the virtual display area. It can be moved only within the operation area 46a corresponding to the size of 45a, and there is a possibility that a desired operation on the cursor 5a and the image 30a may be hindered.

  Therefore, in the projector system S according to the present embodiment, the position on the projected image area 60 of an image in an area other than the operation area 46a assigned to the terminal apparatus 2a according to an operation by the operation unit of the terminal apparatus 2a. Can be changed within the operation area 46a, even if the size of the operation area 46a allocated to the terminal device 2a is smaller than the size of the projection image area 60 of the projector 1, the terminal device 2a An image in an area other than the operation area 46a can be operated.

  In the present embodiment, the case where two terminal devices are connected to the projector 1 will be described, but the number of terminal devices connected to the projector 1 is not limited to this. In the following, when any one of the terminal devices 2a and 2b is represented, it may be represented as the terminal device 2, and when any one of the virtual display regions 45a and 45b is represented, the virtual display region 45 may be represented. When representing any one of the cursors 5a and 5b, it may be represented as the cursor 5, and when representing any one of the operation areas 46a and 46b, it is represented as the operation area 46. If any one of the images 30a to 30e is represented, the image 30 may be represented.

  In FIG. 1, the boundary 47 of the operation area 46a assigned to the terminal device 2a is displayed on the projection image area 60 so as to be visible for convenience of explanation. It does not have to be displayed. When the cursors 5a and 5b approach the boundary of the operation area 46a, a frame for visually recognizing the size of the operation area 46a may be displayed on the boundary 47. With this configuration, the user of the terminal device 2a can know in advance that the cursor 5a is at the boundary 47 of the operation area 46a.

  In the projector system S according to the present embodiment, as shown in FIG. 2, the projector 1 includes image data of images in the virtual display area 45 of the plurality of terminal devices 2, the position coordinates of the cursor 5, and the virtual display area 45. The reception processing unit 70 that receives the size via the communication path 4, the operation area 46 that can be operated from each terminal apparatus 2 on the projection image area 60 of the projector 1, and the virtual display area 45 of each terminal apparatus 2. An operation region allocating unit 71 that is allocated to each terminal device 2 according to the size, and an image generating unit 72 that generates image data for projection by combining the image data of the image 30 in the virtual display region 45 of each terminal device 2; The image projection unit 73 that projects an image based on the projection image data generated by the image generation unit 72 and the operation received from the terminal device 2 by the reception processing unit 70 The image position changing unit 74 that changes the position on the projected image area 60 of the image 30 in the area other than the operation area 46 assigned to the terminal device 2 to the operation area 46 based on the information, and the terminal apparatus 2 A display control unit 75 for displaying a selection menu for selecting an image 30 to be repositioned in the operation area 46 from among the images 30 in the area other than the assigned operation area 46; I have.

  As shown in FIG. 3, the terminal device 2 is in the display unit 90, the virtual display region setting unit 91 that sets a virtual display region 45 adjacent to the display region of the display unit 90, and the virtual display region 45. To operate the image processing unit 92 that transmits the image data of the image, the position coordinates of the cursor 5, and the size of the virtual display area 45 to the projector 1 via the communication path 4, and the image 30 in the virtual display area 45. And a processing unit 94 that generates image data by changing the coordinate position of the cursor 5 or executing an application in accordance with the operation of the operation unit 93.

  That is, the projected image area 60 of the projector 1 and the virtual display area 45 of each terminal device 2 are coordinate areas (that is, set as the minimum unit of one pixel (one pixel) with the upper left corner of the area as the origin. When the cursor 5 or the image 30 in the virtual display area 45 is synthesized, first, the terminal device 2 uses the transmission processing unit 92 to perform virtual display. The image data of the image in the area 45, the position coordinates of the cursor 5, and the size of the virtual display area 45 are transmitted to the projector 1 via the communication path 4, and the projector 1 receives the transmitted information from the reception processing unit 70. Is received via the communication path 4.

  Then, the projector 1 uses the image generation unit 72 to acquire the image data of the cursor 5 and the image 30 based on the information acquired by the reception processing unit 70, and the projection image area corresponding to the coordinate position on the virtual display area 45. The image data for projection is generated by arranging and synthesizing at the coordinate positions on 60, and the image projection unit 73 projects an image based on the image data for projection, so that the virtual image of each terminal device 2 can be obtained. The cursor 5 and the image 30 in the display area 45 are combined and displayed in the projected image area 60.

  Here, at the time of such composition, the identification numbers 31 a and 31 b for identifying each image 30 are synthesized on the top of each image 30.

  Furthermore, among the operation areas 46 assigned to the projection image area 60 by the operation area assignment unit 71 of the projector 1, the operation area 46 (here, “operation area 46 a”) smaller than the size of the projection image area 60. The upper part is used when the position of the image 30 in an area other than the operation area 46 is changed into the operation area 46 in accordance with an operation on the operation unit 93 of the terminal device 2 to which the operation area 46 is assigned. A task bar 20 is displayed.

  The task bar 20 displays task buttons 21a and 21b corresponding to the images 30 on the projected image area 60. The task buttons 21a and 21b have icons 32a displayed at the top of the corresponding images 30, respectively. , 32b, the same icons 22a, 22b are displayed. Here, the icons 32 a and 32 b are images displayed on the upper side of the image 30 in order to identify each application executed to generate each image 30 in each terminal device 2.

  In addition, the projector system S according to the present embodiment provides operation information (image operation command) including information on an operation position (cursor position), information on the content of the operation, and the like from the terminal devices 2a and 2b to the projector 1. ) Can be operated from the terminal devices 2a and 2b to the projected image area 60.

  Then, the user of the terminal device 2a, to which the operation area 46a having a size smaller than the size of the projection image area 60 is assigned, operates the identification numbers 31a and 31b and the task bar 20 by using the operation unit 93, thereby operating the operation area. In addition to specifying the image 30 to be moved within 46a (hereinafter also referred to as “moving target image 30”), the projector 1 causes the image position changing unit 74 to execute an image operation command based on the operation. Processing for changing the position of the image 30 in the area other than the operation area 46a on the projection image area 60 into the operation area 46a is performed.

  Hereinafter, a method of moving the image 30 in the region other than the operation region 46a into the operation region 46a and a method of returning the moved image 30 to the original position will be described with reference to FIGS. 4 is a diagram for explaining an image position changing method by an operation to the task bar or an image moving command, and FIG. 5 is a diagram for explaining an image position changing method according to an operation to the image. FIG. 7 is a diagram for explaining an image position changing method according to an operation on a selection menu, and FIG. 7 is a diagram for explaining an image position change releasing operation according to a drag and drop operation on an image.

(1-1. Movement method 1)
As shown in FIG. 4A, when the image 30b is outside the operation area 46a and cannot be operated, the user of the terminal device 2a displays the cursor 5a on the task bar 20 using the operation unit 93. The task button 22a is moved to the task button 22a corresponding to 30b, and the task button 22a is clicked.

  When the projector 1 receives the operation as an image operation command, the image position changing unit 74 changes the position of the image 30b corresponding to the task button 22a into the operation area 46a as shown in FIG. 4B. . Thereby, the user of the terminal device 2a can perform an editing operation or the like on the image 30b moved into the operation area 46a.

  As shown in FIG. 4C, when the task button 22a corresponding to the image 30b is clicked again, the image 30b returns to the position before the position change by the image position changing unit 74.

  Here, in the present embodiment, when the position of the image 30b is changed by the image position changing unit 74, the projector 1 does not change the position of the image 30b on the virtual display area 45b, but on the projected image area 60. Only the position is to be changed. That is, even when the position of the image 30b on the projected image area 60 is changed by the image position changing unit 74 of the projector 1, the position of the image 30b on the virtual display area 45b set in the terminal device 2b is There is no change.

  Note that, when the image position changing unit 74 changes the position of the image 30b, the projector 1 moves the image 30b to a position where the center of the image 30b and the center of the operation area 46a coincide.

(1-2. Movement method 2)
In addition, the user of the terminal device 2a inputs an image position change command corresponding to the identification numbers 31a and 31b assigned to each image by using the operation unit 93, so that the image 30b in an area other than the operation area 46a is displayed. It can also be moved.

  That is, for example, in the state shown in FIG. 4A, the user of the terminal device 2a uses the keyboard that is an example of the operation unit 93 and presses the Ctrl key as an image position change command to display the image 30b. An operation of pressing “2”, which is a number assigned as an identification number, is performed.

  Then, the projector 1 that has received the image position change command as an image operation command causes the image position change unit 74 to set the position of the image 30b corresponding to the image position change command to the operation area as shown in FIG. Change to 46a.

  In the state shown in FIG. 4B, when an image position change command is input again by the user of the terminal device 2a, the image 30b is displayed by the image position changing unit 74 as shown in FIG. 4C. It will return to the position before the position change.

(1-3. Movement method 3)
As shown in FIG. 5A, when a part of the image 30b outside the operation area 46a exists in the operation area 46a, the user of the terminal device 2a uses a mouse which is an example of the operation unit 93. By using this and clicking on the part existing in the operation area 46a of the image 30b, the position of the image 30b on the projected image area 60 is changed to the operation area 46a as shown in FIG. 5B. be able to.

  When the user of the terminal device 2a performs an operation (for example, an editing operation) on the image 30a other than the image 30b using the operation unit 93 as the position change release operation of the terminal device 2a, FIG. ), The image 30b returns to the position before the position change in the operation area 46a by the image position changing unit 74.

(1-4. Movement method 4)
Further, as shown in FIG. 6A, the projector 1 changes the position in the operation area 46 from the image 30 in the area other than the operation area 46 assigned to the terminal device 2 by the display control unit 75. A selection menu 24 for selecting an image 30 to be displayed can be displayed on the operation area 46.

  Here, in this selection menu 24, various selection buttons 25 are displayed. For example, as shown in FIG. 6A, the selection menu 24 includes selection buttons 25a and 25b for moving the images 30 on which the same icon 32 is displayed (generated from the same application), The selection buttons 25c and 25d for moving the images 30 generated by the specific terminal device 2 together, the selection buttons 25e for moving the images 30 generated by all the terminal devices 2 together, and the operation A selection button 25f for returning the image 30 whose position has been changed in the region 46 to the position before the position change is displayed.

  When the user of the terminal device 2a wants to operate the generated image 30b and the image 30e in the region other than the operation region 46a, a selection button for moving the images 30 generated by the terminal device 2b together. By clicking the mouse 25d using the mouse, the image 30b and the image 30e can be moved into the operation area 46a.

  In addition, the user of the terminal device 2a clicks the “EXIT” button 25f displayed on the selection menu 24 using the mouse, and thereby the image 30b and the image 30e whose positions are changed in the operation area 46a are displayed in the position. It is possible to return to the position before being changed.

  As another position change canceling method, as shown in FIG. 7A, when the image 30b outside the operation area 46a is repositioned within the operation area 46a by the image position changing unit 74 of the projector 1. As shown in FIG. 7B, the user of the terminal device 2a uses the mouse to move the image 30b outside the operation area 46a (hereinafter also referred to as “drag and drop operation”). As shown in FIG. 7C, the image 30b returns to the position before the position is changed in the operation area 46a by the image position changing unit 74.

  Hereinafter, an example of a more specific configuration and operation of the projector system S described above will be specifically described with reference to the drawings.

[2. Specific configuration of projector system]
(About the configuration of the projector 1)
Next, the configuration of the projector 1 will be described. FIG. 8 is a configuration diagram of the projector 1 in the present embodiment, FIG. 9 is a diagram illustrating an example of an image attribute information management table stored in the projector 1 in the present embodiment, and FIG. 10 is a terminal device in the present embodiment. 2a is a diagram for explaining coordinates defined in the virtual display area 45a of FIG. 2a, and FIG. 11 is a diagram for explaining coordinates defined in the virtual display area 45b of the terminal device 2b in the present embodiment. 12 is a diagram for explaining coordinates defined in the projection image area 60 of the projector 1 in the present embodiment. FIG. 13 is an example of a connection information management table stored in the projector 1 in the present embodiment. 14 is an example of a cursor information management table stored in the projector 1 according to the present embodiment, and FIG. 15 illustrates the projector 1 according to the present embodiment. Is a diagram showing an example of stored are icons corresponding table, FIG. 16 is a diagram showing an example of a task bar setting table stored in the projector 1 in this embodiment.

  As shown in FIG. 8, the projector 1 includes an operation panel 101 for performing various operations, a storage unit 102 that is a nonvolatile memory for holding setting information, data files, and the like, and an infrared ray that performs wireless communication using infrared rays. The communication unit 103, the interface 104 for communicating with the terminal device 2, the video signal input circuit 105 for inputting a video signal from the outside, and the video signal input via the video signal input circuit 105 and the interface 104 An image processing circuit 106 that performs predetermined processing on the acquired image data, an image projection unit 107 that projects an image based on an image signal output from the image processing circuit 106, and a control unit 108 that controls the entire projector 1 These are built in the housing.

  The operation panel 101 includes buttons for performing various operations, a display unit (for example, an LCD), and the like. When the user operates the operation panel 101 in the projector 1, control according to the operation content is controlled. This is executed by the unit 108.

  The storage unit 102 is configured by a flash memory or the like, and information on the resolution set in the projector 1, image data of the cursor of each terminal device 2, image data of various icons 32, virtual data of each terminal device 2. In addition to storing image data of an image in the display area 45, an image attribute information storage area 110 for storing an image attribute information management table for managing position information, size information, etc. of the image, and a terminal device connected to the projector 1 The connection information storage area 111 for storing the connection information management table for managing the connection status 2, the cursor information storage area 112 for storing the cursor information management table for managing the cursor position information, etc., are displayed above each image 30. An icon correspondence table for managing the correspondence between the icon 32 and the application ID corresponding to the icon 32 is described. Icon association information storage area 113 has a taskbar setting information storage area 114 for managing the task bar setting table for managing the setting of the taskbar.

  The infrared communication unit 103 includes an infrared light receiving unit 131 configured by an infrared LED and the like, and an infrared control unit 132 that performs processing for converting an infrared signal received by the infrared light receiving unit 131 into data.

  The interface 104 is a USB interface that can communicate with an external device. The interface 104 acquires image data, an image operation command, and the like from the terminal device 2, transmits a screen operation command to the terminal device 2, and the like. It is used by the control unit 108 when communicating with a computer device. The interface 104 may be a wireless or wired LAN interface instead of the USB interface.

  The video signal input circuit 105 inputs video signals such as composite video signals (for example, NTSC video signals) and component video signals (for example, RGB signals).

  The image processing circuit 106 performs processing such as synthesis of a plurality of image data on the video signal input to the video signal input circuit 105 or the image data acquired via the interface 104 based on control by the control unit 108. Do. The image signal generated by processing in this way is input to the image projection unit 107.

  The image projection unit 107 includes a lamp driving circuit 120, a light source 121, an illumination optical system 122, a transmissive liquid crystal panel 123 (hereinafter referred to as “LCD 123”), an imaging optical system 124, and an LCD driving circuit 125. And a focus adjustment circuit 126.

  The light source 121 is composed of a lamp or the like, and is driven to light up and emit light based on a signal output from the lamp driving circuit 120 controlled by the control unit 108. The light emitted from the light source 121 is applied to the LCD 123 as illumination light by the illumination optical system 122.

  The LCD 123 is driven by the LCD drive circuit 125 and displays an image on its display surface. The video displayed in this way is irradiated with illumination light emitted from the light source 121 via the illumination optical system 122, thereby generating image light. Subsequently, the image light is projected onto the screen (projection surface) through the imaging optical system 124 and the projection opening (not shown) of the housing. As described above, the image displayed on the LCD 123 is projected onto the screen. The focus adjustment circuit 126 can adjust the focus of the image projected on the screen.

  The control unit 108 incorporates a CPU (Central Processing Unit), a ROM (Read Only Memory), a RAM (Random Access Memory), and the like, and the CPU reads and executes a program stored in advance in the ROM, whereby the projector 1 is caused to function as a reception processing unit, an image generation unit, an operation area allocation unit, an image position change unit, a display control unit, and the like.

  As a reception processing unit, the control unit 108 receives the image data of the image in the virtual display area 45 of the plurality of terminal devices 2, the position coordinates of the cursor 5, the size of the virtual display area 45, or the image operation command through the interface 104 and the communication path 4. Receive via. The image operation command can also be obtained from a remote control device (not shown) via the infrared communication unit 103.

  In addition, the control unit 108 functions as an image generation unit to synthesize the image data of the cursor 5 and the image 30 in the virtual display area 45 of each terminal device 2. The composition of the image data by the image generation unit is executed based on the image attribute information management table, the connection information management table, the cursor information management table, and the icon correspondence table stored in the storage unit 102.

  Here, the image attribute information management table will be described with reference to FIG.

  As shown in FIG. 9, in the image attribute information management table, the name of the terminal device 2 (owner PC) that transmitted the image in the virtual display area 45 of each terminal device 2, the size of the image, and the virtual display of the image The position on the virtual display area 45 with respect to the position on the area 45, the position on the projected image area 60 of the image (hereinafter also referred to as “drawing position”), and the size of the image on the projected image area 60. When combining a plurality of image data by the scale ratio from the size, the file name of the image data, and the image generation unit, the order in which the image data is superimposed (hierarchical level), when generating the image in the terminal device 2 Information about the application ID assigned to the application to be executed and the identification number synthesized and displayed at the top of the image is information for identifying the image (window ID) in association with stored.

  Information regarding the position where the image in the virtual display area 45 of each terminal device 2 is to be displayed is represented by the coordinate position on the projection image area 60 and the coordinate position on the virtual display area 45.

  In the present embodiment, the coordinates of the virtual display area 45 set in each terminal device 2 are defined with the top left vertex as the origin, and one pixel (1 pixel) is set as the minimum unit and set in the virtual display area. The upper limit is determined according to the number of pixels that have been set.

  For example, when the number of pixels of the virtual display area 45a set in the terminal device 2a is 800 × 600, the coordinates (X2, Y2) defined in the virtual display area 45a are 1 as shown in FIG. It is expressed as an area from (X2, Y2) = (0, 0) to (X2, Y2) = (800, 600), where a pixel is one unit. Similarly, when the number of pixels of the virtual display area 45b set in the terminal device 2b is 1280 × 1024, as shown in FIG. 11, coordinates (X2, Y2) defined in the virtual display area 45b Is expressed as a region from (X2, Y2) = (0, 0) to (X2, Y2) = (1280, 1024), where one pixel is one unit.

  The position coordinates of the image in the virtual display area 45 are represented by the position coordinates of the upper left vertex of the image, and the image size information includes the width (W) and height (H) of the image. Is information expressed by numerical values of coordinates. For example, as shown in FIG. 10, an image 30a in the virtual display area 45a of the terminal device 2a has an image position of (X2, Y2) = (430, 100) and an image size of (W, H) = (280 , 300). Similarly, as shown in FIG. 11, the image 30b in the virtual display area 45b of the terminal device 2b has an image position of (X2, Y2) = (620,600) and an image size of (W, H) = ( 500,400).

  On the other hand, the coordinates of the projected image area 60 of the projector 1 are also defined with the upper left vertex as the origin, similarly to the virtual display area 45 set in each terminal device 2, and one pixel (1 pixel) is the minimum unit. The upper limit is determined according to the number of pixels set in the projection image area 60. For example, as shown in FIG. 12, on the projected image area 60, the position coordinates (drawing position) of the image 30a are (X1, Y1) = (430, 100), and the position coordinates of the image 30b are (X1 , Y1) = (100, 150).

  Further, the name of the terminal device 2 (owner PC) that transmitted the image data is associated with the connection information management table shown in FIG. In this connection information management table, as shown in FIG. 13, the name (owner PC) of the terminal device 2 connected to the projector 1 is connected to the connection status (whether it is connected to the projector 1 or not connected). The IP address assigned to each terminal device 2 and the size of the virtual display area set in each terminal device 2 are stored in association with each other.

  Further, the control unit 108 has an image of the cursor 5 at a position based on the operation information transmitted from the transmission processing unit of the terminal device 2 as the image generation unit in the virtual display area 45 of each terminal device 2. Combine with the image data of the image. Here, the composition of the image of the cursor 5 is executed based on the information in the cursor information management table.

  As shown in FIG. 14, the cursor information management table includes the image file name of the cursor image assigned to the terminal device 2 connected to the projector 1, and the position information of the cursor image in the projection image area 60 projected by the projector 1 ( X1, Y1) are stored in association with the name of the terminal device 2.

  Here, in the present embodiment, a different hierarchical level is assigned to each image data of the image in the virtual display area 45 of each terminal device 2, and the image data is synthesized by superimposing the image data in the hierarchical level order. It is said. That is, when combining the image data of the image in the virtual display area 45 of each terminal device 2, the control unit 108 refers to the information on the hierarchical level stored in the image attribute information management table, and this hierarchical level is high. Image data of an image that is formed by superimposing images in order is generated.

  And the control part 108 synthesize | combines the cursor 5 and the image 30 in the virtual display area 45 of each terminal device 2 with reference to these tables.

  Furthermore, when performing such composition processing, the control unit 108 refers to the image attribute information management table and composes the identification number 31 corresponding to the image 30 on the top of each image 30.

  That is, when combining the image data of the image 30 acquired from each terminal device 2, the control unit 108 refers to the image attribute information management table, acquires information on the identification number 31 assigned to the image 30, and An identification number 31 corresponding to the image 30 is combined and displayed on the upper part of the image 30. As a result, as shown in FIG. 1, an identification number 31 corresponding to the image 30 is displayed above each image 30 displayed on the projection image region 60.

  Further, the control unit 108 refers to the icon correspondence table, the task bar setting table, and the connection information management table, and displays the task bar 20 above the operation area 46 having a size smaller than the size of the projection image area 60.

  In the icon correspondence table, as shown in FIG. 15, an application ID assigned to each application is stored in association with icon image data.

  In the task bar setting table, as shown in FIG. 16, the window ID of the image 30 corresponding to each task button 21, the display number of the task button 21, the display name of the task button 21, and the task button The size of 21 is stored in association with the image data of the icon 22. Note that the display number of the task button 21 indicates what number the task button 21 is displayed from the left end of the task bar 20, and when the image 30 is displayed on the projection image area 60, the image is displayed. Task buttons 21 corresponding to 30 are newly displayed in order from the left end of the task bar 20.

  That is, when displaying the task bar 20, the control unit 108 first refers to the connection information management table, and displays the operation area 46 where the task bar is to be displayed (the operation area 46 having a size smaller than the size of the projection image area 60). To decide.

  Next, the control unit 108 acquires the window ID information and the application ID information of each image 30 from the image attribute information management table, refers to the acquired application ID information and the icon correspondence table, and performs a task button. The icon 22 to be displayed in 21 is determined, and the task bar setting table is updated based on these information.

  Then, the control unit 108 displays the task bar 20 in the operation area 46 having a size smaller than the size of the projection image area 60 based on the information in the task bar setting table.

  In the present embodiment, the size (width) of the task button 21 is set to W = 200 as an initial setting. However, the number of the task buttons 21 is increased by the number of the images 30 on the projected image area 60 so that the number of the task buttons 21 is increased. When the number that can be displayed on 20 is exceeded, the control unit 108 displays all the task buttons 21 by reducing the size of the task button 21.

  Further, the control unit 108 functions as an operation region allocation unit by setting the operation region 46 that can be operated from each terminal device 2 on the projection image region 60 of the projector 1 according to the size of the virtual display region 45 of each terminal device 2. Assigned to each terminal device 2.

  Here, when assigning the operation area 46 of each terminal apparatus 2 to the projection image area 60, the control unit 108 sets the size of the virtual display area 45 of each terminal apparatus 2 stored in the connection information management table with the upper left as the origin. The operation area 46 having a size corresponding to the information is assigned.

  Further, when the control unit 108 functions as an operation command processing unit together with the interface 104, when the image operation command for operating an arbitrary image among the images projected by the image projection unit 107 is acquired, This image operation command is transmitted to the terminal device 2 that has transmitted the image data of the image to be operated by the image operation command.

  Here, in this embodiment, when an image operation command is transmitted to the terminal device 2, the image data of the image to be operated by the image operation command and the terminal device 2 to which the image operation command is to be transmitted are received. The determination is made based on the image attribute information acquired by the processing unit.

  With such a configuration, it is not necessary to separately request each terminal device 2 for information for determining the image data of the image to be operated for each operation, and the burden on the communication path 4 can be reduced. it can.

  Further, the control unit 108 functions as a display control unit to select an image 30 to be repositioned in the operation area 46 from among the images 30 in the area other than the operation area 46 assigned to the terminal device 2. A selection menu 24 is displayed on the operation area 46.

  As a result, the selection menu 24 is displayed on the projected image area 60 as shown in FIG.

(Regarding the configuration of the terminal device 2)
Next, the configuration of the terminal device 2 will be described. FIG. 17 is a configuration diagram of the terminal device 2 in the present embodiment.

  The terminal device 2 in the present embodiment can be applied to a general personal computer or a dedicated terminal. As shown in FIG. 17, the LCD 200 as a display unit, a graphics controller 201 for driving the LCD 200, and various data And the like, the interface 203 for communicating with the projector 1 via the communication path 4, the USB bus controller 204 for inputting / outputting data with the USB device, and the like are connected to this. A USB connector 205 as a connection port, a keyboard 206 and a mouse 207 (corresponding to an operation unit) that can input predetermined information by a user's operation, and a control unit 208 that controls the entire terminal device 2 are configured. These various elements include the first bus 209 and the second bus 210. They are connected to each other via. In the figure, reference numeral 211 denotes a bus controller for transferring data between the first bus 209 and the second bus 210.

  The hard disk device 202 functions as a storage unit. The hard disk device 202 includes an operating system (OS) program, document creation software, presentation software, spreadsheet software, and graphic creation software for the terminal device 2. In addition to various application programs such as the above, data files created by this application program are stored. In addition to the application program, an image sharing program as a processing program for the projector system S in the present embodiment is stored.

  The image sharing program may be downloaded from a server (not shown) connected to the communication path 4 to the hard disk device 202 of the control unit 208 via the interface 203, or may be a CD. -After being recorded on a recording medium such as a ROM, it may be read into the hard disk device 202 of the control unit 208 via a recording medium drive (not shown).

  The interface 203 is a USB interface that can communicate with an external device. The interface 203 acquires image data, an image operation command, and the like from the terminal device 2, receives image operation information, and communicates with an external computer device. Used by the control unit 208. The interface 203 may be a wireless or wired LAN interface instead of the USB interface.

  The control unit 208 includes a CPU, a ROM, a RAM, and the like, and the CPU reads and executes an image sharing program stored in the hard disk device 202, whereby the terminal device 2 is set as a transmission processing unit and a virtual display area setting. It functions as a part.

  In addition, the control unit 208 reads out and executes various application programs stored in the hard disk device 202 by the CPU, thereby causing the control unit 208 to function as an image generation processing unit, an editing processing unit, and the like.

  The CPU of the control unit 208 executes various application programs stored in the hard disk device 202, functions as an image generation processing unit, and generates image data based on the data file. The generated image data is displayed on the LCD 200 as an image based on the image data by the LCD 200 and the graphics controller 201 as a display unit.

  The control unit 208 functions as a transmission processing unit together with the interface 203, so that the image data of the image 30 in the virtual display area 45, the position coordinates of the cursor 5, and the size of the virtual display area 45 are transmitted via the communication path 4. Transmit to the projector 1.

  When transmitting image data, BMP (Bit Map) data obtained by capturing an image in the virtual display area 45 is converted into JPEG (Joint Photographic Experts Group) data. Thus, by compressing the image data transmitted to the projector 1, the load on the communication path 4 can be reduced.

  Further, the control unit 208 functions as an editing processing unit, so that when an image operation command is received from the projector 1 via the communication path 4, the operation input is reproduced from the image operation command, and according to the operation input Edit the data file. The image operation command is received by the interface 203.

  Further, the control unit 208 functions as a transmission processing unit together with the interface 203 so that when a predetermined operation is performed with the keyboard 206 or the mouse 207 when the cursor 5 is positioned in the virtual display area 45, the operation is performed. An image operation command corresponding to the above is transmitted to the projector 1. Here, “operation” refers to displaying a command for editing a data file being executed by an application of the terminal device or another terminal device, or a cursor 5 pointing to an image projected by the projector 1 or It is a command for that movement.

  Note that the control unit 208 performs processing according to the operation of the keyboard 206 and the mouse 207. For example, the control unit 208 calculates the coordinate position of the cursor 5 in accordance with an operation on the mouse 207 from the user of the terminal device 2. When the cursor 5 is positioned in the virtual display area 45, the calculated coordinate position of the cursor 5 is transmitted to the projector 1 by the transmission processing unit as an image operation command.

  The virtual display area 45 is set by the CPU of the control unit 208 executing an image sharing program stored in the hard disk device 202 and functioning as a virtual display area setting unit.

(Specific operation of the projector)
Next, an example of a specific operation of the projector 1 will be described with reference to FIGS. FIG. 18 is a main process flowchart of the projector 1 in the present embodiment.

  As shown in FIG. 18, when a power switch (not shown) of the projector 1 is pressed, the control unit 108 of the projector 1 performs a connection process (step S100).

  This connection process is a process for the projector 1 to connect to the terminal device 2 via the communication path 4. Specifically, the control unit 108 of the projector 1 first updates the connection information management table when receiving the connection request signal transmitted from the terminal device 2. That is, the control unit 108 newly provides a column of the terminal device 2 newly connected to the projector 1 in the connection information management table, the IP address of the terminal device 2, and the virtual display area 45 set in the terminal device 2. Is stored in association with the name of the terminal device 2. Next, the control unit 108 updates the cursor information management table. That is, the control unit 108 newly provides a column of the terminal device 2 newly connected to the projector 1 in the cursor information management table, and the image file name of the cursor image assigned to the terminal device 2 and the position information of the cursor image. Is stored in association with the name of the terminal device 2. Then, the control unit 108 notifies the terminal device 2 that the connection process has been completed, and ends the connection process.

  When the connection process in step S100 ends, the control unit 108 determines whether image attribute information has been received from the terminal device 2 (step S101). In this process, when it is determined that the image attribute information has been received from the terminal device 2 (step S101: Yes), the control unit 108 updates the image attribute information management table based on the received image attribute information (step S102). ). For example, when the received image attribute information is transmitted by newly adding an image to the projected image area 60, the control unit 108 newly locates the image in the virtual display area 45. The image attribute information is newly added to the image attribute information management table, and a storage area for the image data of the image is secured. In addition, the control unit 108 updates the hierarchical level information of each image managed in the image attribute information management table. That is, the control unit 108 sets the hierarchy level of the newly added image to the virtual display area 45 to “1”, and sequentially lowers the other images to a hierarchy one level lower than the currently assigned hierarchy level. (For example, an image whose hierarchical level is set to “2” is updated to “3”). Since the newly added image is displayed in the foreground in the virtual display area 45, a collaborative work by a plurality of persons can be performed smoothly.

  When the received image attribute information is transmitted by deleting the image from the projected image area 60, the control unit 108 sets the image attribute information of the image to be deleted as the image attribute information management table. And the hierarchy level of other images are updated.

  When the process of step S102 is completed, the control unit 108 performs a taskbar update process (step S103). This task bar update process is a process from steps S200 to S210 in FIG. 19, and will be described later.

  Next, the control unit 108 transmits an image data request signal requesting transmission of image data of the image 30 to the terminal device 2 (step S104).

  Next, when receiving the image data from the terminal device 2, the control unit 108 decompresses the received image data (step S105). This is because the image data transmitted from the terminal device 2 is transmitted in a compressed state, as will be described later.

  Next, the control unit 108 stores the received image data in the image data storage area secured in the image attribute information update process (step S106), refers to the image attribute information management table, and designates the image data. Affix with the specified size at the drawing position (step S107).

  In this process, the control unit 108 also performs a process of combining the identification number 31 corresponding to the image 30 on the upper part of the image 30 based on the image data with reference to the image attribute information management table.

  Next, the control unit 108 determines whether or not all of the image data of the image in the virtual display area 45 of each terminal device 2 has been pasted (step S108). If it is determined in this process that all of the image data has been pasted (step S108: Yes), the control unit 108 proceeds to step S112, and when the image data has not been pasted (step S108). S108: No), the process proceeds to step S104. That is, the processing from step S104 to step S108 is performed for each image data. In step S107, the image data is pasted on the display area, whereby the virtual display area 45 of each terminal device 2 is displayed. The image data of a certain image is synthesized.

  On the other hand, when image attribute information is not received in step S101 (step S101: No), the control unit 108 determines whether or not cursor information is received from the terminal device 2 (step S109). In this determination, when cursor information is not received from the terminal device 2 (step S109: No), the control unit 108 proceeds to step S112.

  On the other hand, when determining that the cursor information has been received from the terminal device 2 (step S109: Yes), the control unit 108 updates the information in the cursor information management table based on the received cursor information (step S110). Then, based on the information stored in the cursor information management table, the control unit 108 combines the image data of the cursor 5 with the image data of the image projected on the projection image area 60 of the projector 1 (step S111), and processing The process proceeds to step S112.

  In step S <b> 112, the control unit 108 projects an image based on the combined image data (projection image data) from the image projection unit 107.

  In this process, the control unit 108 displays the task bar 20 created in step S103 above the operation area 46 having a size smaller than the size of the projection image area 60.

  When the process of step S112 is completed, the control unit 108 determines whether an image operation command has been received from the terminal device 2 (step S113). In this process, if it is determined that an image operation command has been received from the terminal device 2 (step S113: Yes), the control unit 108 performs an operation command distribution process (step S114). In this operation command distribution process, the image operation command is transmitted to the terminal device 2 that has transmitted the image data of the image to be operated by the image operation command received from the terminal device 2. This process is a process from steps S300 to S308 in FIG. 20, and will be described later.

  When the process of step S114 is completed, or when an image operation command is not received from the terminal device 2 in step S113 (step S113: No), the control unit 108 determines whether the power is turned off ( Step S115) When the power is not turned off (Step S115: No), the process proceeds to Step S100. On the other hand, if it determines with the power supply having been turned off (step S115: Yes), the control part 108 will complete | finish a main process.

  Next, the taskbar update process in step S103 will be specifically described with reference to FIG. FIG. 19 is a taskbar update process flowchart of the projector 1 according to the present embodiment.

  As shown in FIG. 19, when the task bar update process is started, the control unit 108 determines whether or not the number of task buttons 21 is larger than the displayable number (step S200). Here, the displayable number is a number calculated by the size / task button 21 of the task bar 20. In this process, when the number of task buttons 21 is not larger than the displayable number (step S200: No), the control unit 108 shifts the process to step S201.

  In step S <b> 201, the control unit 108 determines whether the total size of the task buttons 21 displayed on the task bar 20 is larger than the size of the task bar 20. In this process, when determining that the total size of the task buttons 21 displayed on the task bar 20 is larger than the size of the task bar 20 (step S201: Yes), the control unit 108 sets the size of the task buttons 21 at a predetermined rate. Reduction is performed (step S202).

  On the other hand, if it is determined in step S200 that the number of task buttons 21 is larger than the displayable number (step S200: Yes), the control unit 108 acquires the application ID information of each image from the image attribute information management table ( In step S203, the task bar setting table is updated based on the acquired information (step S204).

  That is, the control unit 108 sets the display number and display name of the taskbar setting table for each application ID based on the information acquired in step S203.

  Next, the control unit 108 changes the size of the task button 21 based on the task bar setting table updated in step S204 (step S205). As a result, the task button 21 integrated for each application ID is displayed on the task bar 20.

  Next, the control unit 108 determines whether or not the number of task buttons 21 is larger than the displayable number (step S206). In this process, if it is determined that the number of task buttons 21 is greater than the number that can be displayed (step S206: Yes), the control unit 108 acquires information on the owner PC of each image 30 from the image attribute information management table (step S206). In step S207, the task bar setting table is updated based on the acquired information (step S208).

  That is, the control unit 108 sets the display number and display name of the taskbar setting table for each owner PC based on the information acquired in step S207.

  Next, the control unit 108 changes the size of the task button 21 based on the task bar setting table updated in step S208 (step S209). As a result, the task button 21 integrated for each owner PC is displayed on the task bar 20.

  When the processing of steps S202 and S209 is completed, or when the total size of the task buttons 21 displayed on the taskbar 20 is not larger than the size of the taskbar 20 in step S201 (step S201: No), step S206 When the number of task buttons 21 is not greater than the number that can be displayed (step S206: No), the control unit 108 creates the task bar 20 (step S210) and ends the task bar update process.

  Next, the operation command distribution process in step S114 will be specifically described with reference to FIG. FIG. 20 is a flowchart of the operation command distribution process of the projector 1 in the present embodiment.

  As shown in FIG. 20, when the operation command distribution process is started, the control unit 108 updates the cursor information management table based on the acquired image operation command (step S300).

  Next, referring to the updated cursor information management table and image attribute information management table, the terminal device 2 (owner PC) that transmitted the image data of the operated image 30 is specified (step S301), and the operation target The image attribute information management table is updated so that the image 30 that has become the highest hierarchy (step S302).

  Next, the control unit 108 performs image position change operation detection processing (step S303). This image position change operation detection process is a process from steps S400 to S413 in FIG. 21, and will be described later.

  When the process of step S303 is completed, the control unit 108 determines whether or not the operation position based on the received image operation command is on the task button 21 (step S304). In this process, if it is determined that the operation position is on the task button 21, the control unit 108 manages image attribute information so that the image 30 corresponding to the task button 21 that is the operation target becomes the highest layer. The table is updated (step S305).

  On the other hand, in step S304, when the operation position based on the received image operation command is not on the task button 21 (step S304: No), the control unit 108 places the operation position based on the received image operation command on the movement target image. It is determined whether or not there is (step S306). In this process, when it is determined that the operation position is on the movement target image (step S306: Yes), the control unit 108 converts the acquired operation position into an operation position on the terminal device (step S307). This is performed by calculating the difference between the drawing position of the movement target image and the position on the virtual display area 45, and changing the acquired operation position according to the calculated difference.

  When the processing of Steps S305 and S307 is completed, or when the operation position is not on the movement target image in Step S306 (Step S306: No), the control unit 108 applies to the terminal device 2 identified in Step S301. An image operation command is transmitted (step S308). When this process ends, the control unit 108 ends the operation command distribution process.

  Next, the image position change operation detection processing in step S303 will be specifically described with reference to FIG. FIG. 21 is a flowchart of image position change operation detection processing according to the present embodiment.

  As illustrated in FIG. 21, when the image position change operation detection process is started, the control unit 108 determines whether or not the operation position based on the received image operation command is at the boundary of the operation area 46 set in the terminal device 2. Is determined (step S400). In this process, when it is determined that the operation position based on the received image operation command is at the boundary of the operation area 46 set in the terminal device 2 (step S400: Yes), the control unit 108 shifts the process to step S401. To do.

  In step S401, the control unit 108 determines whether or not the selection menu 24 is hidden. In this process, if it is determined that the selection menu is not displayed (step S401: Yes), the control unit 108 displays the selection menu (step S402).

  As described above, the control unit 108 functions as a display control unit, so that the image 30 to be repositioned in the operation region 46 from the image 30 in the region other than the operation region 46 assigned to the terminal device 2. A selection menu 24 for selecting is displayed on the operation area 46.

  On the other hand, when the operation position is not at the boundary of the operation area 46 set in the terminal device 2 in step S400 (step S400: No), or when the selection menu 24 is not hidden in step S401 (step S401: No), the control unit 108 determines whether or not the operation position is on the task button 21 (step S403). In this process, when it is determined that the operation position is on the task button 21 (step S403: Yes), the control unit 108 shifts the process to step S404.

  In step S404, the control unit 108 determines whether or not the operated task button 21 is the integrated task button 21 (step S404). Here, the “integrated task button” indicates a task bar integrated for each application ID or owner PC in step S205 or step S209 in FIG. In this process, when it is determined that the operated task button 21 is the integrated task button 21 (step S404: Yes), the control unit 108 lists a plurality of images 30 corresponding to the integrated task button 21. A submenu to be displayed is created (step S405), and the submenu is displayed at the bottom of the integrated task bar 20 (step S406).

  On the other hand, when the operated task button 21 is not the integrated task button 21 in step S404 (step S404: No), the control unit 108 determines whether or not the movement target image is larger than the operation area 46 of the movement destination. Determination is made (step S407). In this process, if it is determined that the movement target image is larger than the operation area 46 that is the movement destination (step S407: Yes), the control unit 108 causes the drawing size of the movement target image to be ½ of the size on the virtual display area 45. The display scale is changed so as to become (step S408).

  On the other hand, when the movement target image is not larger than the movement destination operation area 46 in step S407 (step S407: No), the control unit 108 changes the drawing position information of the movement target image in the image attribute information management table. At the same time (step S409), the movement target image is updated so as to be the highest layer (step S410).

  On the other hand, when the operation position is not on the task button 21 in step S403 (step S403: No), the control unit 108 determines whether or not a movement target image selection command has been received (step S411). In this process, when the movement target image selection command has not been received (step S411: No), the control unit 108 shifts the process to step S402.

  When the process of step S410 is completed or when it is determined in step S411 that a movement target image selection command has been received (step S411: Yes), the control unit 108 performs an image selection movement process (step S412). This image selection process is a process from steps S500 to S505 in FIG. 22, and will be described later.

  Next, the control unit 108 performs image selection cancellation processing (step S413). This image selection cancellation process is a process from steps S600 to S606 in FIG. 23 and will be described later.

  When the processes of steps S402, S406, and S413 are completed, the control unit 108 ends the image position change operation detection process.

  Next, the image selection movement process in step S412 will be specifically described with reference to FIG. FIG. 22 is an image selection movement process flowchart of the projector 1 according to the present embodiment.

  As illustrated in FIG. 22, when the image selection movement process is started, the control unit 108 determines whether or not the received image operation command is for the image 30 in the virtual display area 45 of the other terminal device 2. (Step S500). In this process, when it is determined that the received image operation command is for the image 30 in the virtual display area 45 of the other terminal device 2 (step S500: Yes), the control unit 108 proceeds to step S501. To do.

  In step S <b> 501, the control unit 108 determines whether a part of the image 30 targeted by the image operation command is in an area other than the operation area 46 of the terminal device 2. In this process, if it is determined that a part of the image 30 is in an area other than the operation area 46 of the terminal device 2 (step S501: Yes), the control unit 108 proceeds to step S502.

  In step S502, the control unit 108 determines whether the size of the movement target image is larger than the size of the operation area. In this process, when determining that the size of the movement target image is larger than the size of the operation area (step S502: Yes), the control unit 108 sets the drawing size of the movement target image in the virtual display area 45 in the image attribute information management table. The display scale is changed to be ½ of the upper size (step S503).

  On the other hand, when the size of the movement target image is not larger than the size of the operation area 46 in step S502 (step S502: No), the control unit 108 changes the drawing position information of the movement target image in the image attribute information management table. At the same time (step S504), the moving target image is updated so as to be the highest layer (step S505).

  When the process of step S505 is completed, or when the received image operation command is not for the image 30 in the virtual display area 45 of the other terminal device 2 in step S500 (step S500: No), in step S501 When a part of the image 30 that is the target of the image operation command is not in an area other than the operation area 46 of the terminal device 2 (step S501: No), the control unit 108 ends the image selection movement process.

  As described above, when the control unit 108 functions as an image position changing unit and detects an operation on the selection menu 24 by the operation unit of the terminal device 2 based on the operation information received from the terminal device 2, According to the operation, the position of the image 30 in the region other than the operation region 46 assigned to the terminal device 2 is changed to the operation region, so that the user of the terminal device 2 For example, when it is desired to move a plurality of images 30 together into the operation area 46, the position of the image 30 in the area other than the operation area 46 of the terminal device 2 is set on the operation area 46. The operation of changing inward can be easily performed.

  Next, the image selection cancellation process in step S413 will be specifically described with reference to FIG. FIG. 23 is an image selection release processing flowchart of the projector 1 according to the present embodiment.

  As shown in FIG. 23, when the image selection cancellation process is started, the control unit 108 determines whether or not the received image operation command is an image selection cancellation command (step S600). Here, the image selection cancel command is an image whose position is changed from the outside of the operation area 46 to the operation area 46 by pressing the task button 21 corresponding to the image 30 whose position has been changed from the outside of the operation area 46 to the operation area 46. An image position change command corresponding to the identification number 31 assigned to 30 or a predetermined command input by a remote control device (not shown) is shown.

  In this process, when it is determined that the received image operation command is an image selection cancel command (step S600: Yes), the control unit 108 updates the image attribute information management table to update the operation region from outside the operation region 46. The positions on the virtual display area 45 of all the images 30 whose positions have been changed into 46 coincide with the drawing positions (step S601).

  As described above, the control unit 108 functions as an image position changing unit, so that the image in the operation area 46 assigned to the terminal device 2 based on the operation information (image operation command) received from the terminal device 2. 30, since the position on the projected image area 60 of the image 30 whose position has been changed in the operation area 46 from the area other than the operation area 46 is returned to the position before the position change. The user 2 can easily edit the image 30 when, for example, the editing operation on the image 30 whose position has been changed in the operation area 46 is finished and the image 30 no longer needs to be in the operation area 46. It can be returned to its original position.

  On the other hand, when the received image operation command is not an image selection release command in step S600 (step S600: No), the control unit 108 is an operation on the image 30 generated by the own terminal device 2. It is determined whether or not (step S602). In this process, if it is determined that the received image operation command is an operation on the image 30 generated by the terminal device 2 (step S602: Yes), the control unit 108 proceeds to step S601.

  As described above, the control unit 108 functions as an image position changing unit, so that the operation area 46 allocated to the terminal device 2 by the operation unit of the terminal device 2 based on the operation information received from the terminal device 2. When an operation on the image 30 is detected, the position of the image 30 whose position has been changed in the operation area 46 from the area other than the operation area 46 among the images 30 other than the image 30 is determined. Therefore, when the user of the terminal device 2 finishes the editing operation on the image 30 whose position has been changed in the operation area 46, for example, the user of the terminal device 2 has changed to another position. The operation to 30 and the operation to return the image 30 after the editing operation to the original position can be performed simultaneously.

  On the other hand, when the received image operation command is not an operation on the image 30 generated by the terminal device 2 in step S602 (step S602: No), the control unit 108 indicates that the received image operation command is a drag and drop operation. It is determined whether or not (step S603). In this process, when it is determined that the received image operation command is a drag and drop operation (step S603: Yes), the control unit 108 proceeds to step S604.

  In step S <b> 604, the control unit 108 determines whether the operation position based on the received image operation command is located at the boundary of the operation area 46. In this process, when it is determined that the operation position based on the received image operation command is located at the boundary of the operation area 46 (step S604: Yes), the control unit 108 updates the image attribute information management table to thereby update the operation area 46. The positions on the virtual display area 45 of all the images 30 whose positions have been changed from the outside into the operation area 46 are matched with the drawing positions (step S605).

  In this way, the control unit 108 functions as an image position changing unit, so that the operation area assigned to the terminal device 2 by the operation unit of the terminal device 2 based on the operation information received from the terminal device 2. When a movement operation from the area other than 46 to the area other than the operation area 46 for the image 30 whose position has been changed into the operation area 46 is detected, the position of the image 30 on the projected image area 60 is changed. Therefore, the user of the terminal device 2 surely restores the image 30 by performing a drag-and-drop operation on the image 30 whose position has been changed in the operation area 46. Can be returned to position.

  When the process of step S601 or step S605 is completed, the control unit 108 hides the selection menu 24 displayed in the operation area 46 (step S606).

  When the process of step S606 is completed, or when the received image operation command is not a drag and drop operation in step S603 (step S603: No), the operation position based on the received image operation command is the operation area in step S604. When it is not located at the boundary of 46 (step S604: No), the control unit 108 ends the image selection cancellation process.

  As described above, in the projector system S according to the present embodiment, the image 30 in the area other than the operation area 46 assigned to the terminal device 2 is projected according to the operation of the keyboard 206 or the mouse 207 of the terminal device 2. Since the position on the image area 60 is changed to the operation area, even if the size of the virtual display area 45 set in the terminal device 2 is smaller than the size of the projection image area 60 of the projector, All the images in the projected image area 60 of the projector 1 can be operated from the terminal device 2.

(Specific operation of terminal device)
Next, an example of a specific operation of the terminal device 2 will be described with reference to FIG. FIG. 24 is a main process flowchart of the terminal device 2 in the present embodiment.

  As shown in FIG. 24, when a power switch (not shown) of the terminal device 2 is pressed, the control unit 208 of the terminal device 2 performs a connection process (step S1000). This connection process is a process for connecting to the projector 1 via the communication path 4. That is, the control unit 208 transmits a connection request signal including information on the IP address of the own terminal device to the projector 1 and ends the connection process when receiving a connection completion notification from the projector 1.

  When the connection process in step S1000 ends, the control unit 208 determines whether the image attribute information has been updated (step S1001). This determination is based on whether or not an operation for moving the image 30 in the display area of the LCD 200 to the virtual display area 45 is performed by the user's operation with the mouse 207 or the like (whether the image 30 is newly added to the virtual display area 45). No), whether or not the image 30 in the virtual display area 45 has been moved or deleted, or whether or not the position or size of the image 30 in the virtual display area 45 has been changed. In this determination, if it is determined that the image attribute information has been updated (step S1001: Yes), the control unit 208 generates image attribute information based on the updated information, and the image attribute information is transmitted via the communication path 4. It transmits to the projector 1 (step S1002). That is, when a new image is added to the virtual display area 45, among the image attribute information of the added image, the window ID of the image, position information, size information, information on the file name of the image data, and the image Image attribute information notification data including additional flag data of attribute information is created and transmitted to the projector 1. When an image in the virtual display area 45 is moved out of the virtual display area 45 or deleted, an image including the window ID of the moved or deleted image and deletion flag data of the image attribute information is displayed. Attribute information notification data is created and transmitted to the projector 1. When the position or size of the image 30 in the virtual display area 45 is changed, image attribute information notification data including the image attribute information of the changed image 30 is created and transmitted to the projector 1.

  In step S1001, when the image attribute information has not been updated (step S1001: No), the control unit 208 determines whether or not an operation for moving the cursor 5 has been performed (step S1003). In this process, when it is determined that the movement operation of the cursor 5 has been performed (step S1003: Yes), the control unit 208 transmits cursor information to the projector 1 based on the movement operation of the cursor 5 (step S1004).

  When the processing of steps S1002 and S1004 is completed, or when the movement operation of the cursor 5 is not performed in step S1003 (step S1003: No), the control unit 208 projects with the projector 1 by the keyboard 206 or the mouse 207. It is determined whether or not an operation input has been performed on the image that has been displayed (step S1005). In this process, when it is determined that an operation input has been performed (step S1005: Yes), the control unit 208 acquires operation input information based on the operation input and position information of the cursor 5, and based on these information, an image operation command is acquired. Is created (step S1006). Then, the control unit 208 transmits the created image operation command to the projector 1 via the communication path 4 (step S1007).

  When the process of step S1007 is completed or when an operation input is not performed in step S1005 (step S1005: No), the control unit 208 transmits image data of the image in the virtual display area 45 from the projector 1. It is determined whether or not there is a request (step S1008). This determination is made based on whether or not an image data transmission request signal has been received from the projector 1. In this process, if it is determined that there is a request for transmission of image data (step S1008: Yes), the control unit 208 sends the image data of the image in the virtual display area 45 to the projector 1 based on the received image data transmission request. To transmit via the communication path 4 (step S1009).

  When the process of step S1009 ends, or when there is no transmission request for image data of the image in the virtual display area 45 from the projector 1 in step S1008 (step S1008: No), the control unit 208 receives the image from the projector 1. It is determined whether or not an operation command has been received (step S1010). In this process, when it is determined that an image operation command has been received from the projector 1 (step S1010: Yes), the control unit 208 reproduces the received image operation command, whereby an application corresponding to the data file to be operated is obtained. The program is caused to execute an editing operation based on the image operation command (step S1011).

  When the process of step S1011 is completed, or when the control unit 208 has not received an image operation command from the projector 1 in step S1010 (step S1010: No), the control unit 208 is in a connection state with the projector 1. It is determined whether or not is released (step S1012). If it is determined in this process that the connection state with the projector 1 has not been released (step S1012: No), the control unit 208 moves the process to step S1001. On the other hand, if it determines with the connection state with the projector 1 having been cancelled | released (step S1012: Yes), the control part 208 will complete | finish a main process.

(About other embodiments)
In the above embodiment, as a method for changing the position of the image 30 in the area other than the operation area 46 on the projected image area 60 into the operation area 46, the position change using the task bar 20 or the selection menu 24, The position change by the image position change command has been described. In addition to these image movement methods, the projector 1 uses the image position change unit based on the operation information received from the terminal device 2 by the reception processing unit. When the operation unit 2 detects an operation to move the cursor position beyond the coordinates of the virtual display area 45 assigned to the terminal device 2, the operation region assigned to the terminal device 2 according to the operation is detected. The position of the image 30 in the area other than 46 on the projected image area 60 may be changed to the operation area 46.

  That is, as shown in FIG. 25A, when there is an image 30f generated by the terminal device 2b in an area other than the operation area 46a, the user of the terminal apparatus 2a uses the mouse 207 to When an operation for moving the cursor position beyond the coordinates of the operation area 46 assigned to the apparatus 2 (that is, an operation for moving the cursor 5a in the direction indicated by the arrow in the drawing) is performed, FIG. As shown in b), the position of the image 30f in the area other than the operation area 46a on the projected image area 60 is changed into the operation area 46a by the image position changing unit of the projector 1.

  With this configuration, the user of the terminal device 2 can perform the image position changing operation with a simpler operation.

  In addition, when there are a plurality of images 30 in an area other than the operation area 46 assigned to the terminal device 2, the image position changing unit of the projector 1 determines the position on the projected image area 60 among these images 30. The image 30 to be changed in the operation area 46 is in the direction to move the cursor position beyond the coordinates of the virtual display area 45 assigned to the terminal device by operating the operation unit of the terminal device 2. It is characterized by that.

  That is, as shown in FIG. 26A, when there are images 30f to 30h generated by the terminal device 2b in an area other than the operation area 46a, the user of the terminal apparatus 2a uses the mouse 207 to When an operation for moving the cursor position beyond the coordinates of the operation area 46 assigned to the terminal device 2 (that is, an operation for moving the cursor 5a in the direction of the arrow in the figure) is performed, As shown in FIG. 26B, the projected image area 60 of the image 30f in the direction in which the cursor 5a is about to move among the images 30f to 30h in the area other than the operation area 46a by the image position changing unit of the projector 1. The upper position is changed within the operation area 46a.

  Further, the user of the terminal device 2a continues the above operation, and as shown in FIG. 26 (c), the image position changing unit of the projector 1 causes the image 30g and the image 30h in the regions other than the operation region 46a. Among them, the position on the projected image area 60 of the image 30g in the direction in which the cursor 5a is to be moved is changed into the operation area 46a.

  With this configuration, when there are a plurality of images 30 in an area other than the operation area 46 assigned to the terminal device 2, it is possible to narrow down the images 30 to be repositioned to some extent, and the unnecessary images 30 are repositioned. Thus, it is possible to prevent movement into the operation area 46.

  In such a case, the image position changing unit of the projector 1 performs an operation to move the cursor position beyond the coordinates of the virtual display area 45 by the operation unit of the terminal device by the reception processing unit. The position of the plurality of images 30 on the projected image area 60 is sequentially changed from the image close to the operation area in the operation area 46 according to the detected period. It is going to follow.

  As described above, the position of the image 30 outside the operation area 46 on the projected image area 60 is not changed into the operation area 46 at a time, but is changed sequentially so that unnecessary images are repositioned. And the user of the terminal device 2 can be prevented from being confused. In addition, by changing the position from the image 30 close to the operation region 46, the user of the terminal device 2 can easily grasp which image is moved into the operation region 46 in order.

  In such a case, the storage unit 102 of the projector 1 stores a distance table for managing the priority order when changing the image position, and the control unit 108 of the projector 1 refers to this distance table. It is determined from which image 30 the position in the operation area 46 is changed in order.

  This distance table is created in response to an operation by the user of the terminal device 2 to move the cursor position beyond the coordinates of the operation area 46 assigned to the terminal device 2. FIG. As shown in FIG. 4, information indicating the priority when changing the position and whether the position change is completed is stored in association with the window ID.

  Here, the priority in changing the position is set according to the distance from the operation position (cursor position) to the image 30 in the area other than the operation area 46, and the closer the image 30 is to the operation position. High priority is set.

  In another embodiment, when the user of the terminal device 2 performs a cursor movement operation with the mouse 207, the projector 1 transmits information on the cursor position coordinates to the projector 1 at predetermined intervals according to the operation. When the projector 1 receives information on the cursor position coordinates having the same value of either the X coordinate or the Y coordinate for a predetermined number of times or more, the projector 207 exceeds the coordinates of the virtual display area 45. It is determined that the cursor position is going to be moved.

  Hereinafter, the operation of the projector 1 in such a case will be referred to with reference to FIG. In such a case, the image selection movement process of the projector 1 may be changed as follows. In addition, about the same structure as the said embodiment, suppose that the same code | symbol is attached | subjected and the description is abbreviate | omitted.

  That is, as shown in FIG. 28, when the image selection movement process is started, the control unit 108 determines whether or not the operation position based on the received image operation command is located on the boundary of the operation area 46 (step S700). ). In this process, when the operation position based on the received image operation command is not positioned on the boundary of the operation area 46 (step S700: No), the control unit 108 discards the distance table stored in the storage unit 102 ( Step S701).

  On the other hand, if it is determined in step S700 that the operation position based on the received image operation command is located on the boundary of the operation area 46 (step S700: Yes), the control unit 108 proceeds to step S702.

  In step S <b> 702, the control unit 108 determines whether a distance table is stored in the storage unit 102. In this process, when the distance table is not stored (step S702: No), the control unit 108 calculates the distance from the operation position to the image 30 outside the operation area 46 (step S703), and the calculation result is Based on this, a distance table is created (step S704).

  On the other hand, when it is determined in step S702 that the distance table is stored (step S702: Yes), the control unit 108 has the highest priority among the images 30 in which the position change into the operation area 46 has not been completed. The image attribute information management table is updated so that the drawing position of the high image 30 is within the operation area 46 (step S705).

  Next, the control unit 108 updates the image attribute information management table so that the hierarchy information in the image attribute information management table matches the hierarchy of the distance table (step S706).

  That is, the control unit 108 updates the image attribute information management table so that the hierarchy of the image 30 set with the lowest priority in the distance table is the highest.

  When the processes in steps S701, S704, and S706 are completed, the control unit 108 ends the image selection movement process.

  As mentioned above, some of the embodiments of the present invention have been described in detail with reference to the drawings. However, these are merely examples, and the present invention is described in other forms in which various modifications and improvements are made based on the knowledge of those skilled in the art. It is possible to carry out the invention.

It is a figure which shows the whole system configuration | structure of the projector system in this embodiment. It is a schematic block diagram of the projector used for the projector system in this embodiment. It is a schematic block diagram of the terminal device used for the projector system in this embodiment. It is a figure which shows a mode that the position of the image in areas other than an operation area is changed by the image position change part in this embodiment. It is a figure which shows a mode that the position of the image in areas other than an operation area is changed by the image position change part in this embodiment. It is a figure which shows a mode that the position of the image in areas other than an operation area is changed by the image position change part in this embodiment. It is a figure for demonstrating image position change cancellation operation according to drag and drop operation to an image. It is a block diagram of the projector in this embodiment. It is a figure which shows an example of the image attribute information management table memorize | stored in the projector in this embodiment. It is a figure for demonstrating the coordinate prescribed | regulated to the virtual display area of the terminal device in this embodiment. It is a figure for demonstrating the coordinate prescribed | regulated to the virtual display area of the terminal device in this embodiment. It is a figure for demonstrating the coordinate prescribed | regulated to the projection image area | region of the projector in this embodiment. It is an example of the connection information management table memorize | stored in the projector in this embodiment. It is an example of the cursor information management table memorize | stored in the projector in this embodiment. It is an example of the icon corresponding | compatible table memorize | stored in the projector in this embodiment. It is an example of the taskbar setting table memorize | stored in the projector in this embodiment. It is a block diagram of the terminal device in this embodiment. It is a main process flowchart of the projector in this embodiment. It is a taskbar update process flowchart of the projector in this embodiment. 6 is a flowchart of a projector operation command distribution process according to the present embodiment. It is an image position change operation detection process flowchart of the projector in this embodiment. It is an image selection movement process flowchart of the projector concerning this embodiment. It is an image selection cancellation process flowchart of the projector concerning this embodiment. It is a main process flowchart of the terminal device in this embodiment. It is a figure which shows a mode that the position of the image in area | regions other than an operation area | region is changed by the image position change part in other embodiment. It is a figure which shows a mode that the position of the image in area | regions other than an operation area | region is changed by the image position change part in other embodiment. It is a figure which shows an example of the distance table memorize | stored in the projector in other embodiment. It is an image selection movement process flowchart of the projector concerning other embodiment. It is a figure which shows a prior art example.

Explanation of symbols

S Projector system 1 Projector 2 Terminal device 20 Task bar 24 Selection menu 45 Virtual display area 46 Operation area

Claims (10)

A plurality of terminal devices having a display unit and a virtual display region setting unit for setting a virtual display region adjacent to the display region of the display unit;
In a projector system comprising: a projector that obtains image data of an image in each of the virtual display areas from the plurality of terminal devices via a communication path, and projects an image generated by combining the image data.
An operation area allocating unit that allocates an operation area that can be operated from each terminal device on the projection image area of the projector for each terminal device according to the size of the virtual display area of each terminal device;
An image position changing unit that changes a position on the projected image area of an image in an area other than the operation area assigned to the terminal apparatus in the operation area in response to an operation on the operation unit of the terminal apparatus; A projector system comprising: A plurality of terminal devices having a display unit and a virtual display region setting unit for setting a virtual display region adjacent to the display region of the display unit;
In a projector system comprising: a projector that obtains image data of an image in each of the virtual display areas from the plurality of terminal devices via a communication path, and projects an image generated by combining the image data.
The terminal device
An operation unit for operating an image in the virtual display area;
A transmission processing unit that transmits image data of an image in the virtual display region, the size of the virtual display region, and information on an operation performed by the operation unit to the projector via the communication path;
The projector is
A reception processing unit that receives image data of images in the virtual display area of the plurality of terminal devices, the size of the virtual display area, and the operation information via the communication path;
An operation area allocating unit that allocates an operation area that can be operated from each terminal device on the projection image area of the projector for each terminal device according to the size of the virtual display area of each terminal device;
An image generation unit that generates image data for projection by combining image data of images in the virtual display area of each terminal device;
An image projection unit that projects an image based on the projection image data generated by the image generation unit;
Based on the operation information received from the terminal device by the reception processing unit, an image that changes the position on the projection image area of an image in an area other than the operation area assigned to the terminal apparatus to the operation area And a position changing unit. The operation unit is for moving the position coordinates of the cursor in the virtual display area.
The image position changing unit
Based on the operation information received from the terminal device by the reception processing unit, the operation unit of the terminal device attempts to move the cursor position beyond the coordinates of the virtual display area assigned to the terminal device The position on the projection image area of an image in an area other than the operation area assigned to the terminal device is changed to the operation area according to the operation. Projector system. The image position changing unit
When there are a plurality of images in an area other than the operation area assigned to the terminal device, an image that changes the position on the projection image area in the operation area is selected from these images. The projector system according to claim 3, wherein the image is in a direction in which the cursor position is to be moved beyond the coordinates of a virtual display area assigned to the terminal device by an operation on a unit. The image position changing unit
When there are a plurality of images in an area other than the operation area assigned to the terminal device, an operation for moving the cursor position beyond the coordinates of the virtual display area by the operation unit of the terminal device, Detection based on the operation information received from the terminal device by the reception processing unit, and positions of the plurality of images on the projection image area in the operation area according to the detected period. 5. The projector system according to claim 3, wherein the projector system is sequentially changed from an image close to. A display control unit for displaying a selection menu for selecting an image to be repositioned in the operation area from images in an area other than the operation area assigned to the terminal device on the operation area; ,
The image position changing unit
When an operation to the selection menu by the operation unit of the terminal device is detected based on the operation information received from the terminal device by the reception processing unit, an operation area allocated to the terminal device according to the operation 6. The projector system according to claim 2, wherein a position on the projection image area of an image in an area other than the area is changed to the operation area. The image position changing unit
Based on the operation information received from the terminal device by the reception processing unit, among the images in the operation region assigned to the terminal device, an image whose position has been changed in the operation region from a region other than the operation region The projector system according to claim 2, wherein the position on the projection image area is returned to the position before the position change. The image position changing unit
Based on the operation information received from the terminal device by the reception processing unit, an image whose position has been changed into the operation region from the region other than the operation region assigned to the terminal device by the operation unit of the terminal device. 8. The projector system according to claim 7, wherein when a movement operation to an area other than the operation area is detected, the position of the image on the projection image area is returned to the position before the position change. The image position changing unit
Based on the operation information received from the terminal device by the reception processing unit, when an operation on the image in the operation region assigned to the terminal device by the operation unit of the terminal device is detected, an image other than the image is detected. 9. The position on the projection image area of an image whose position is changed in the operation area from an area other than the operation area is returned to the position before the position change. The projector system described in 1. Image data of each image in the virtual display area is acquired via a communication path from a plurality of terminal devices having a display section and a virtual display area setting section for setting a virtual display area adjacent to the display area of the display section. In a projector that projects an image generated by combining these image data,
An operation area allocating unit that allocates an operation area that can be operated from each terminal device on the projection image area of the projector for each terminal device according to the size of the virtual display area of each terminal device;
An image position changing unit that changes a position on the projected image area of an image in an area other than the operation area assigned to the terminal apparatus in the operation area in response to an operation on the operation unit of the terminal apparatus; A projector comprising: