JP2009075238A - Image projection device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an image projection device which projects the minutes of proceedings based on the content of proceedings during projecting a main image for a conference as a sub image while projecting the main image, thereby conducting a conference. <P>SOLUTION: The image projection device is equipped with: a projection area setting part for setting a main image projection area 24 to which the main image 21 based on image information is projected; an image generating part for generating main image data of size corresponding to the main image projection area 24; a projection part for projecting an image based on the generated image data to a set projection area; and an editing information acquiring part for acquiring editing information. When receiving an instruction to switch a mode to an editing mode in which the sub image based on the editing information is projected in addition to the main image, the projection area setting part reduces the main image projection area 24 and sets a sub image projection area 25 to which the sub image 23 is projected in a main image non-projection area formed by reduction of the main image projection area 24. The image generating part generates the sub image data corresponding to the size of the sub image projection area 25 based on the editing information. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an image projection apparatus, and more particularly to an image projection apparatus that projects an image based on acquired image information.

  Conventionally, as an image projection apparatus, for example, a projector that inputs image information from a computer apparatus or the like, displays the image on a liquid crystal display element, irradiates light on the liquid crystal display element, and projects the enlarged image on a projection screen. Widely used.

  This type of projector is often used in conferences and the like where multiple people participate, and by using such a projector, a single image displayed on a large screen can be viewed simultaneously by multiple participants. You can proceed.

In addition, in the past, so-called minutes have been created to record the contents of statements made at a meeting or the like in a meeting or the like held by a plurality of people by writing or recording. There has been proposed an image projection apparatus that creates minutes data by associating and storing an image projected on a screen and the contents of a discussion made at a meeting or the like. For example, Patent Document 1 discloses an image projection apparatus capable of creating minutes data including image data of a projected image and voice data of a comment made while the image is projected. Yes.
JP 2006-138972 A

  However, in the invention described in Patent Document 1, since the data stored in association with the projection image is audio data, for example, while creating the minutes during the meeting, the discussion is performed while referring to the created minutes. It is difficult to proceed.

  Therefore, the present invention projects the main image for a conference, projects the minutes based on the contents of the proceedings while the main image is being projected as a sub-image, and allows the conference to proceed. An object of the present invention is to provide a projection device.

  In order to solve the above problem, an invention according to claim 1 is an image information acquisition unit that acquires image information, and a projection region setting unit that sets a main image projection region for projecting a main image based on the image information. And an image generation unit that generates main image data of a size corresponding to the main image projection region based on the image information, and a projection region in which an image based on the image data generated by the image generation unit is set An image projection apparatus for projecting to an image, comprising an editing information acquisition unit for acquiring editing information, wherein the projection region setting unit is an editing unit that projects a sub-image based on the editing information in addition to the main image. When receiving an instruction to switch to a mode, the main image projection area is reduced, a sub image projection area for projecting the sub image to the main image non-projection area generated by the reduction of the main image projection area is set, and Picture Generator, and generating based on the sub-image data corresponding to the size of the sub image projection area on the editing information.

  According to a second aspect of the present invention, in the first aspect of the invention, the editing information acquisition unit acquires editing information from a plurality of terminal devices, and the projection area setting unit A plurality of image projection areas are set, each sub-image projection area is assigned to each terminal device, and the image generation unit uses sub-image data corresponding to the size of each sub-image projection area as the editing information. It generates based on.

  According to a third aspect of the present invention, in the first or second aspect of the present invention, the editing information acquired by the editing information acquisition unit is associated with the image information acquired by the image information acquisition unit. And a storage processing unit for storing in the storage means.

  The invention according to claim 4 is the invention according to any one of claims 1 to 3, wherein the projection area setting unit sets the main image projection area and / or the sub-image projection area to be set. It is characterized in that can be changed.

  The invention according to claim 5 is the invention according to claim 4, further comprising image position designation means for instructing to change the position of the sub-image projection area and / or the position of the main image projection area. The area setting unit changes the sub-image projection area and / or the main image projection area to a position specified by the sub-image position specifying means.

  According to a sixth aspect of the present invention, there is provided the image size change instructing means for instructing a change in the size of the main image projection area and / or the size of the sub image projection area in the invention of the fourth or fifth aspect. The projection area setting unit changes the main image projection area and / or the sub-image projection area to a size instructed by the image size designation means.

  The invention according to claim 7 is the invention according to any one of claims 1 to 6, wherein the projection area setting unit sets the sub-image projection area, and the sub-image is set. When the information amount of the editing information to be projected onto the projection area exceeds a predetermined amount, the main image projection area is further reduced while the sub-image projection area is enlarged.

  According to the first aspect of the invention, upon receiving an instruction to switch to the editing mode, the main image projection area is reduced and the editing information is added to the main image non-projection area generated by the reduction of the main image projection area. A sub-image projection area for projecting the sub-image based on the sub-image is generated and sub-image data corresponding to the size of the sub-image projection area is generated based on the editing information. The sub image based on the editing information can be simultaneously projected without overlapping the main image and the sub image.

  Therefore, for example, in a conference using the image projection apparatus according to the present invention, a main image that is a presentation image is projected on the main image projection region, and editing information based on the agenda of the conference is displayed on the sub-image projection region. By projecting as a sub-image, participants in the conference can see the presentation image and the contents of the proceedings at the same time, so the conference can be held smoothly and the minutes can be edited easily. it can. Furthermore, since the simultaneous projection of the main image and the sub-image is performed using a single image projection device, power consumption can be reduced compared to the case where a plurality of image projection devices are used, and the installation space can be reduced. .

  According to the second aspect of the present invention, a plurality of sub-image data based on the editing information respectively acquired from the plurality of terminal devices is generated according to the size of the sub-image projection area assigned to each terminal device.

  That is, for example, when a conference is performed by connecting a plurality of terminal devices and image projection devices, sub-images based on editing information acquired from the plurality of terminal devices are projected separately for each terminal device. It can be easily ascertained by which terminal device user the comment (sub-image) projected on the sub-image projection area has been made, and a meeting or work performed by a plurality of persons can be performed more efficiently.

  According to the invention described in claim 3, since the editing information is stored in association with the image information, for example, the contents of the discussion made in the meeting using the image projection apparatus can be confirmed at a later date. Further, by storing the position and size of the main image projection area and the position and size of the sub image projection area together with the editing information, for example, even when the conference is interrupted, the layout of the main image and the sub image Therefore, when resuming the conference, it can be resumed without a sense of incongruity.

  According to the fourth aspect of the present invention, since the optimum position or size of the main image projection area and / or the sub-image projection area can be set in advance depending on the mode of the meeting or the like, the meeting or the like can be smoothly performed. Can be advanced.

  According to the invention described in claim 5, since the position of the main image and the sub-image can be changed according to the progress of the meeting etc. by providing the image position specifying means, the meeting etc. can be smoothly advanced. Can do.

  According to the sixth aspect of the present invention, since the image size change instructing means is provided, the size of the main image projection area and / or the sub image projection area can be changed according to the progress of the meeting or the like. , Meetings and so on can proceed smoothly.

  According to the seventh aspect of the present invention, even when the information amount of the editing information exceeds a predetermined value, the main image projection area is further reduced while the sub image projection area is enlarged, The image and the main image can be projected simultaneously without overlapping.

  Hereinafter, an embodiment of an image projection apparatus according to the present invention will be specifically described with reference to the drawings.

  FIG. 1 is a diagram illustrating an example of an image projected by the image projection apparatus in the present embodiment, FIG. 2 is a schematic configuration diagram of the image projection apparatus in the present embodiment, and FIG. 3 is a diagram in the present embodiment. FIG. 4 is a diagram illustrating an example of an image projected when the image projection apparatus is connected to a plurality of terminal apparatuses, and FIG. 4 illustrates the position of the main image projection area in the entire projection area of the image projection apparatus according to the present embodiment. FIG. 5 is a diagram illustrating a modification example, and FIG. 5 illustrates how the main image projection area and the sub image projection area change according to the information amount of the editing information projected onto the sub image projection area of the image projection apparatus according to the present embodiment. FIG.

[1. Outline of image projection apparatus]
As shown in FIG. 1, the image projection apparatus according to the present embodiment includes a main image projection area 24 and a sub-image projection area in a projection area 20 that can be projected by a projection unit (hereinafter referred to as “all projection areas 20”). 25, and the main image 21 based on the image information is projected onto the main image projection area 24, and the sub-image 23 based on the editing information including text information and image information is projected onto the sub-image projection area 25. "Edit mode" to be provided. Since the image projection apparatus according to the present embodiment includes this “editing mode”, the single image projection apparatus can project the main image 21 and the sub-image 23 at the same time. In a meeting or the like using the, a presentation image and a comment from a participant of the meeting on the image can be projected at the same time, and the meeting or work using the image projection apparatus can be performed efficiently. As in the case of the conventional image projection apparatus, only the main image 21 can be projected onto the entire projection area 20, and in this embodiment, this state is referred to as “normal mode”.

  As shown in FIG. 2, the image projection apparatus 1 according to the present embodiment projects an image information acquisition unit 10 that acquires image information, and a main image 21 that projects a main image 21 based on the image information acquired by the image information acquisition unit 10. The projection area setting unit 11 that sets the image projection area 24, the editing information acquisition unit 12 that acquires editing information including text information and image information, and main image data having a size corresponding to the main image projection area 24 are displayed as images. The image generation unit 13 that generates the sub-image data according to the size of the sub-image projection area 25 and the editing information acquired by the editing information acquisition unit 12 is generated based on the editing information. A storage processing unit 14 that stores in the storage means in association with the image information acquired by the image information acquisition unit 10 and an image position designation that instructs to change the position of the sub-image projection area 25 and / or the position of the main image projection area 24 Stage 15, image size change instructing means 16 for instructing to change the size of main image projection area 24 and the size of sub-image projection area 25, and an image based on the image data generated by image generation section 13 are displayed in projection area setting section 11. Projection means 17 for projecting onto the projection area set by

  The main image 21 is an image based on image information, and the image information includes various still image data, moving image data, and document data. The image information acquisition unit 10 stores the image information of the main image 21 in a storage area in the storage processing unit 14 or a storage device 3 outside the image projection device 1 (for example, a memory card attached to the image projection device 1). Or other computer devices communicably connected to the image projection apparatus 1).

  The main image projection area 24, which is the area onto which the main image 21 is projected, out of all the projection areas 20 of the image projection apparatus 1 is set by the projection area setting section 11. The image projection apparatus 1 is an image generation section. 13 generates main image data having a size corresponding to the main image projection area 24 based on the image information, and projects an image based on the main image data onto the main image projection area 24 by the projecting unit 17.

  The image projection apparatus 1 according to the present embodiment can project the sub-image 23 that is an image based on the editing information simultaneously with the main image 21 by receiving an instruction to switch to the edit mode.

  Here, the editing information includes code information such as JIS code or ASCII code indicating characters, text information indicating some characters, image information of handwritten characters (information input from a tablet or the like), and the like. It is acquired by the use information acquisition unit 12. The editing information acquisition unit 12 acquires this editing information from the storage area in the storage processing unit 14 or the terminal device 4 connected to be communicable with the image projection device 1.

  That is, when the image projection apparatus 1 receives an instruction to switch from the normal mode to the edit mode, the projection area setting unit 11 reduces the main image projection area 24, and the main image non-existence caused by the reduction of the main image projection area 24 is reduced. A sub image projection area 25 for projecting the sub image 23 is set in the projection area, and the image generation unit 13 generates sub image data corresponding to the size of the sub image projection area 25 based on the setting information. An image based on the data is projected onto the sub-image projection area 25 by the projection means 17.

  As described above, the image projection apparatus 1 according to the present embodiment can simultaneously project the main image 21 based on the image information and the sub image 23 based on the editing information by switching from the normal mode to the editing mode. For example, in a meeting using an image projection device, an image for presentation (main image 21) and an image (sub-image 23) based on agenda contents such as comments while the image is being projected are simultaneously projected. Therefore, participants of the conference can see the presentation image and the proceedings at the same time, and can proceed with the discussion while looking back on the previous proceedings during the conference. It is possible to edit the minutes easily.

  Furthermore, since the image projection apparatus 1 according to the present embodiment simultaneously projects the main image 21 and the sub-image 23 using the single image projection apparatus 1, the power consumption is greater than when a plurality of image projection apparatuses are used. The installation space can be reduced, and there is little effort for preparation and clean-up.

  In addition, the image projection apparatus 1 according to the present embodiment can be connected to a plurality of terminal apparatuses 4, and when connected to a plurality of terminal apparatuses 4, a plurality of sub-image projection areas 25 are set and each terminal apparatus 4 is set. Each sub-image projection area 25 is allocated, and sub-image data corresponding to the size of each sub-image projection area 25 can be generated based on each setting information.

  That is, for example, when two terminal devices 4 are connected to the image projection device 1, as shown in FIG. 3A, the image projection device 1 causes the projection region setting unit 11 to execute the main image non-projection region. Two sub-image projection areas 25a and 25b are set to the terminal apparatus 4, and the sub-image projection areas 25a and 25b are assigned to the terminal devices 4, respectively. Then, the image generation unit 13 generates sub-image data corresponding to the sizes of the sub-image projection areas 25a and 25b allocated to each terminal device 4 based on the editing information transmitted from each terminal device 4. The projection means 17 projects the sub images 23a and 23b based on the sub image data.

  Further, in the state shown in FIG. 3A, when two terminal devices 4 are newly connected to the image projecting apparatus 1, as shown in FIG. 3B, the image projecting apparatus 1 sets the projection area. The unit 11 further sets two sub-image projection areas 25c and 25d in the main image non-image projection area other than the areas set as the sub-image projection areas 25a and 25b, and sets each of the newly connected terminal devices 4 Sub-image projection areas 25c and 25d are allocated.

  As described above, when the image projection apparatus 1 according to the present embodiment is connected to a plurality of terminal apparatuses 4, the image projection apparatus 1 is transmitted from each terminal apparatus 4 by setting and assigning the sub-image projection area 25 to each terminal apparatus 4. Since the sub-image 23 based on the editing information can be projected separately for each terminal, it is easy to grasp which terminal device 4 the projected sub-image 23 is based on the editing information transmitted from. Therefore, it is possible to efficiently perform a meeting or work using the image projection apparatus 1.

  The image projection apparatus 1 according to the present embodiment stores the editing information acquired by the editing information acquisition unit 12 in a storage unit (for example, the storage device 3) in association with the image information acquired by the image information acquisition unit 10. A storage processing unit.

  Thus, when the image projection apparatus 1 projects an image based on the image information in the edit mode, if the setting information associated with the image information is stored in the storage unit, the image projection apparatus 1 together with the main image 21 Since the sub-image 23 based on the setting information can be projected, for example, it can also be used as a so-called meeting minutes in which the contents of meetings and meetings held in the past are recorded together with the image.

  Further, since the setting information is associated with each image information, for example, even when a plurality of main images 21 are projected in a slide format in a meeting or the like, when using as minutes, the main image 21 and the sub image 23 Can be easily grasped.

  In addition, in the present embodiment, the position and size of the main image projection area 24 and the position and size of the sub-image projection area 25 are stored together with the editing information. For example, even when the meeting is interrupted. Since the layout of the main image 21 and the sub-image 23 can be reproduced, the conference can be resumed without a sense of incongruity.

  Further, the image projection apparatus 1 according to the present embodiment can change the set position of the main image projection area 24 and / or the sub image projection area 25. Therefore, since the optimal positions of the main image projection area 24 and / or the sub-image projection area 25 can be set in advance depending on the mode of the meeting or the like, the meeting or the like can proceed smoothly.

  Further, as described above, the image projecting apparatus 1 according to the present embodiment includes the image position designating unit 15 that instructs to change the position of the sub-image projecting area 25 and / or the position of the main image projecting area 24. The area setting unit 11 changes the sub-image projection area 25 and / or the main image projection area 24 to the position designated by the image position designation means 15. Therefore, even during the meeting, the user can change the position of the main image projection area 24 or the sub-image projection area 25 sequentially according to the progress of the meeting by operating the image position specifying means 15. Therefore, a meeting or the like can be efficiently performed using the image projection apparatus 1. The image position specifying means 15 can be arranged as an operation button or an operation panel on the surface of the housing of the image projection apparatus 1 or may be provided on a remote control.

  That is, for example, as shown in FIG. 4A, when the main image projection area 24 is arranged at the center of the entire projection area 20, the information amount of the editing information projected onto the sub-image projection area 25 is large. If this is the case, the size of the main image projection area 24 is moved by moving the position of the main image projection area 24 above the entire projection area 20 by the image position designating unit 15 as shown in FIG. More editing information can be projected without changing.

  Further, the image projection apparatus 1 according to the present embodiment includes image size change instruction means 16 that instructs to change the size of the main image projection area 24 and / or the size of the sub-image projection area 25, and the projection area setting unit 11. Changes the size of the main image projection area 24 and / or the sub-image projection area 25 to the size designated by the image size change instruction means 16. Therefore, the user operates the image size change instructing unit 16 to change the size of the main image projection area 24 or the sub image projection area 25 sequentially according to the progress of the meeting even during the meeting. Therefore, a meeting or the like can be efficiently performed using the image projection apparatus 1. The image size change instruction means 16 can be arranged as an operation button or an operation panel on the surface of the housing of the image projection apparatus 1 or may be provided on a remote control.

  Furthermore, the image projection apparatus 1 according to the present embodiment, when the sub-image projection area 25 is set, when the information amount of the editing information to be projected onto the sub-image projection area 25 becomes a predetermined amount or more, While the image projection area 24 is further reduced, the sub-image projection area 25 can be enlarged.

  That is, for example, as shown in FIG. 5A, when the sub-image 23 based on the predetermined editing information is projected on the sub-image projection area 25, the editing information is further transmitted from the terminal device 4. As a result, when the amount of editing information for the sub-image 23 to be projected increases and the sub-image 23 does not fit in the set sub-image projection area 25, the image projection apparatus 1 uses the projection area setting unit 11 to display the image shown in FIG. As shown in b), the main image projection area 24 is reduced, while the sub image projection area 25 is enlarged, so that the main image projection area 24 and the sub image projection area 25 do not overlap each other. Can be enlarged, and the sub-image 23 based on a large amount of editing information can be projected onto the enlarged sub-image projection area 25.

[2. Specific configuration of image projection apparatus]
Hereinafter, the image projection apparatus 1 according to the present embodiment will be described in more detail with reference to the drawings. FIG. 6 is an overall configuration diagram of an image projection system S including the image projection apparatus 1 in the present embodiment.

  As shown in FIG. 6, the image projection system S in the present embodiment is a storage medium such as an image projection apparatus 1, a remote controller 2 that remotely operates the image projection apparatus 1, and a memory card that is attached to the image projection apparatus 1. A certain storage device 3 and terminal devices 4a to 4d are configured. Hereinafter, when any one of the terminal devices 4a to 4d is expressed, it may be expressed as the terminal device 4.

  The image projection device 1 and the terminal device 4 are communicably connected by wireless communication. In addition, the wireless communication between the image projection apparatus 1 and the remote controller 2 employs infrared data communication using infrared rays.

  The image projection device 1 includes a storage medium drive that reads data stored in the storage device 3 and writes data to the storage device 3 in accordance with the operation of the remote controller 2 by the user, and stores data via the storage medium drive. Information such as image information stored in the apparatus 3 is acquired. As for the data acquisition, all of the data stored in the storage device 3 may be acquired, or only a predetermined folder in the storage device 3 is selected and only the data stored in the folder is selected. You may make it acquire.

(Regarding the configuration of the image projector 1)
Next, the configuration of the image projection apparatus 1 will be described. FIG. 7 is a configuration diagram of the image projection apparatus 1 in the present embodiment.

  As shown in FIG. 7, the image projection apparatus 1 performs wireless communication using infrared rays with an operation panel 101 for performing various operations, a storage unit 102 that is a nonvolatile memory for holding setting information, image data, and the like. An infrared communication unit 103 for performing transmission, an interface 104 for transmitting / receiving information such as image information to / from the external storage device 3, a video signal input circuit 105 for inputting a video signal from the outside, and a video signal input circuit 105. An image processing circuit 106 that performs predetermined processing on an input video signal, image information acquired from an external device, and editing information, and a projection unit 107 that projects an image based on the image signal output from the image processing circuit 106 And a control unit 108 that controls the entire image projection apparatus 1 and a wireless communication unit 109 that performs wireless communication with the terminal device 4. Built in the grayed.

  As for the operation panel 101, when the user operates the operation panel 101 in the image projection apparatus 1, the control unit 108 performs control according to the operation content.

  The storage unit 102 includes a flash memory and the like, and is associated with image information, editing information, position information and size information of the main image projection area 24, position information and size information of the sub-image projection area 25, and the like. And a setting information storage area 110 (corresponding to an example of a storage means) for storing setting information including the above. In the setting information storage area 110, information on the number of divisions of the sub-image projection area 25, the position and size of the main image projection area 24, and the presence / absence of editing information of the sub-image 23 projected on each sub-image projection area. Information such as an edit data list stored in association with image information, a comment list that stores information on the position, size, editing information, and character size of the sub-image projection area 25 in association with image information is stored. Has been.

  The infrared communication unit 103 includes an infrared LED and the like, and an infrared light receiving unit 111 that receives an infrared signal output from the remote controller 2 and the like, and an infrared control that performs a process of converting the infrared signal received by the infrared light receiving unit 111 into data. Part 112.

  The interface 104 is a USB interface that can communicate with an external device, acquires information such as image information from the external storage device 3, and stores information such as image information in the storage device 3.

  The wireless communication unit 109 is used by the control unit 108 when communicating with the terminal device 4, and includes a wireless circuit 113 including an antenna and an RF (wireless) unit that transmits and receives wireless signals via the antenna, And a wireless signal control unit 114 that performs processing for converting a wireless signal transmitted and received by the wireless circuit 113 into a wireless signal conforming to the wireless LAN standard. Here, the wireless signal control unit 114 is constituted by a microcomputer. The image projection device 1 according to the present embodiment acquires editing information from the terminal device 4 via the wireless communication unit 109.

  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).

  Based on the control by the control unit 108, the image processing circuit 106 converts the video signal input to the video signal input circuit 105, the image information acquired through the interface 104, or the editing information acquired through the wireless communication unit 109. On the other hand, processing according to the set size and position of the main image projection area 24 and the sub-image projection area 25 is performed. The image signal processed and generated in this way is input to the projection unit 107.

  The projection unit 107 includes a light source 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 light source 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 image displayed in this way is emitted from the LCD 123 as image light by illumination light from the illumination optical system 122. Subsequently, the image light passes through the imaging optical system 124 and is projected onto a screen (projection surface). 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 includes a CPU (Central Processing Unit), a ROM (Read Only Memory), a RAM (Random Access Memory), and the like, and the CPU reads out and executes a program stored in advance in the ROM, thereby executing an image. An image information acquisition unit for acquiring information, a projection region setting unit for setting a main image projection region 24 for projecting the main image 21 based on the image information, and main image data having a size corresponding to the main image projection region 24 are used as image information. Based on the image information acquired by the image information acquisition unit, the image generation unit to be generated by the image processing circuit 106, the editing information acquisition unit for acquiring the editing information, and the editing information acquired by the editing information acquisition unit are stored. It functions as the storage unit 102 as a means, or a storage processing unit stored in the storage device 3.

  The control unit 108 acquires image information from the storage unit 102 or the storage device 3 via the interface 104 as an image information acquisition unit. Here, in the present embodiment, it is assumed that image information of a plurality of images is stored in the storage device 3.

  Further, the control unit 108 sets a main image projection region 24 for projecting the main image 21 based on the image information and a sub image projection region 25 for projecting the sub image 23 based on the editing information as the projection region setting unit. .

  That is, the projection area setting unit sets the position and size of the main image projection area 24 and the number of divisions, position, and size of the sub-image projection area 25 in the edit mode.

  Information regarding the main image projection area 24 and the sub-image projection area 25 set by the projection area setting unit is stored in the setting information storage area 110 of the storage unit 102 as setting information. This is performed by the control unit 108 as a storage processing unit to be described later.

  The setting information includes an edit data list and a comment list.

  As shown in FIG. 8, the edit data list stores information on the number of divisions of the sub-image projection area 25 and the coordinates of the main image projection area 24, the file name of the image information, and information on each sub-image projection area 25. It is stored in association with the file name of the comment list.

  Here, the number of divisions of the sub-image projection area 25 determines how many the sub-image projection area 25 is divided into the entire projection area 20, and the number of terminal apparatuses wirelessly connected to the image projection apparatus 1. Determined by.

  The coordinate information of the main image projection area 24 is information for determining the position and size of the main image projection area 24 in the entire projection area 20. That is, as shown in FIG. 9, the image projection apparatus 1 according to the present embodiment uses the vertical direction of the entire projection region 20 as the X direction, the horizontal direction as the Y direction, the top left vertex as the origin, and X The maximum value of all the projection areas 20 in the direction and the Y direction is defined as 400, the coordinates of the upper left vertex (X1, Y1) and the coordinates of the lower right vertex (X4, Y4) of the main image projection area 24 By representing with a value of 0 to 400, the position and size of the main image projection area 24 in the entire projection area 20 can be determined. For example, in FIG. 9, the coordinates of the main image projection area 24 are (X1, Y1) = (100, 100), (X4, Y4) = (300, 300). Note that this coordinate information can be changed by the projection area setting unit 11, whereby the position and size of the main image projection area 24 can be changed. The position and size of the main image projection area 24 are changed based on instructions from the image position designation unit 15 and the image size change instruction unit 16.

  As shown in FIG. 10, the comment list stores the coordinates of the sub-image projection area 25, the editing information, and information on the character size when the editing information is text information in association with the file name of the comment list. To do. FIG. 10 shows a comment list when the editing information is text information.

  Here, the coordinate information of the sub-image projection area 25 is information for determining the position and size of the main image projection area 24 in the entire projection area 20, similarly to the coordinate information of the main image projection area 24. That is, the image projection apparatus 1 according to the present embodiment represents the coordinates (X5, Y5) of the upper left vertex and the coordinates (X8, Y8) of the lower right vertex of the sub-image projection area 25 with values of 0 to 400. Thus, the position and size of the sub-image projection area 25 in the entire projection area 20 can be determined. For example, in FIG. 9, the coordinates of the sub-image projection area 25 are (X5, Y5) = (320, 100), (X8, Y8) = (380, 100). Note that this coordinate information can be changed by the projection area setting unit 11 in the same manner as the coordinate information of the main image projection area 24, whereby the position and size of the sub-image projection area 25 can be changed. . The position and size of the sub-image projection area 25 are changed based on instructions from the image position designation unit 15 and the image size change instruction unit 16. The main image projection area 24 and the sub-image projection area 25 are changed by the projection area setting unit 11 so that the areas do not overlap.

  In addition, the control unit 108 functions as an image generation unit together with the image processing circuit 106, and projects main image data and / or sub-images having a size corresponding to the main image projection region 24 based on the image information and / or editing information. Sub-image data having a size corresponding to the area 25 is generated.

  That is, for example, when the coordinates of the main image projection area 24 are set to (X1, Y1) = (100, 100), (X4, Y4) = (300, 300), the control unit 108 includes the image information. Main image data of an image in which the size of the image based on the image is reduced to ¼ compared to the projection onto the entire projection area 20 is generated.

  Similarly to the main image projection area 24, the position and size of the sub image projection area 25 are set according to the coordinate information of the sub image projection area 25, and the sub image projection area 25 has a size corresponding to the set size of the sub image projection area 25. Generate image data.

  Further, the control unit 108 acquires editing information from the terminal device 4 via the wireless communication unit 109 as an editing information acquisition unit. When the editing information is text information, the terminal device 4 only transmits a signal that a predetermined key of a keyboard 312 described later is pressed to the image projection device 1, and the image projection device 1 functions as an editor. The signal is edited as text information and written in the comment list. Further, when the editing information is image information of handwritten characters input by a tablet, a pen tablet, or the like, the terminal device 4 detects coordinate information of a locus where the cursor or the pen moves, and displays the detected coordinate information as an image. Transmit to the projection device 1. The image projecting apparatus 1 functions as an editor, edits the image information of handwritten characters based on the coordinate information, and writes it out in the comment list.

  Further, as described above, the control unit 108 functions as a storage processing unit, and sets the storage unit 102 as a storage unit in association with the editing information acquired by the editing information acquisition unit in association with the image information acquired by the image information acquisition unit. Store in the information storage area 110.

  The setting information storage area 110 is used when projecting in the edit mode the information on the position and size of the main image projection area 24 in the normal mode and the main image 21 that does not have the associated editing information. Information regarding the position and size of the main image projection area 24 and the number of divisions, position, and size of the sub-image projection area 25 are stored as initial settings. When projecting the main image 21 in the normal mode or projecting the main image 21 that does not have associated editing information in the edit mode, the setting information stored as these initial settings is referred to.

(Configuration of terminal device 4)
Next, the configuration of the terminal device 4 will be described. FIG. 11 is a configuration diagram of the terminal device 4 in the present embodiment.

  The terminal device 4 according to the embodiment of the present invention is used in the image projection system S, and as shown in FIG. 11, drives a memory 306 including a ROM, a RAM, and the like, and an LCD 303 and an LCD 303 which are display units. A graphics controller 304 for connecting to the first bus 307, and the CPU 305 controls the graphics controller 304.

  Further, the terminal device 4 includes a USB bus controller 302 for inputting / outputting data with the USB device, a USB connector 310 as a connection port connected to the USB device, and a wireless communication unit for performing wireless communication with the image projecting device 1. 309, a mouse 311, a keyboard 312, a DVD / CD 313, a hard disk (HDD) 315, a second bus 316 connected thereto, and a bus controller 308 for exchanging data with the first bus 307. I have.

  In addition to the operating system (OS) program of the terminal device 4, spreadsheet programs, graphics creation software, and other application programs, the HDD 315 transmits key commands and the like to the image projection apparatus 1 by wireless communication. A wireless communication application program is stored.

The wireless communication unit 309 includes an antenna 317, an RF unit 318, and a baseband unit 319, and can transmit and receive data based on the wireless LAN standard. The RF unit 318 and the baseband unit 319 are configured by a WLAN (Wireless Local Area Network) chip.
(About the configuration of the remote control 2)
As shown in FIG. 12, the remote controller 2 includes a display device 201 that is a display means such as an LCD (Liquid Crystal Display), a power switch 202, a cross key 203 that is an up / down / left / right key, an enter key 204, an edit mode switch 205, A main image projection area change switch 206, a sub image projection area change switch 207, a storage switch 208, an infrared communication unit 209, and the like are provided. Image position specifying means for instructing to change the position of the sub-image projection area 25 and / or the position of the main image projection area 24, and the image size change instructing to change the size of the sub-image projection area 25 and / or the size of the main image projection area 24 The instruction means includes the remote controller 2 and the infrared communication unit 103 or the operation panel 101 of the image projection apparatus 1.
(Specific operation of the image projector 1)
Next, an example of a specific operation of the image projection apparatus 1 will be described with reference to FIGS. FIG. 13 is a main process flowchart of the image projection apparatus 1 according to the present embodiment. The following describes a case where editing information is text information, and image information is acquired and projected one by one. However, the present invention is not limited to this. For example, a plurality of image information is acquired and projected sequentially. You can also.

  As shown in FIG. 13, when a power switch (not shown) of the image projection apparatus 1 is pressed, the control unit 108 of the image projection apparatus 1 has unacquired image information in the storage unit 102 or the storage unit 3. Is determined (step S100). In this process, when it is determined that there is unacquired image information (step S100: Yes), image information is acquired from the storage unit 102 or the storage device 3 (step S101), and an image based on the acquired image information is displayed in the normal mode. Projection is performed from the projection unit 107 (step S102). That is, when acquiring the image information, the control unit 108 generates main image data having a size corresponding to the main image projection area 24 based on the image information, and sets an image based on the image data to the set projection area. Project. Here, in the normal mode, the main image projection area 24 is set to the same area as the entire projection area 20 as an initial setting, and thus the main image 21 is projected onto the entire projection area 20.

  Next, the control unit 108 determines whether an editing mode is instructed (step S103). This determination is made based on whether or not the edit mode changeover switch 205 of the remote controller 2 has been pressed. If it is determined in this process that the edit mode switch 205 has been pressed (step S103: Yes), the control unit 108 performs an edit mode process (step S104). This edit mode process is a process from steps S120 to S124 in FIG. 14, and will be described later.

  When editing mode processing is completed, when editing mode processing is not instructed in step S103 (step S103: No), or when it is determined in step S100 that there is no unacquired image information in the storage unit 102 or the storage device 3 The control unit 108 determines whether or not the power of the image projection apparatus 1 is turned off (step S105). When the control unit 108 determines that the power is turned off (step S105: Yes), the control unit 108 ends the main process. .

  Next, the edit mode process in step S103 will be specifically described with reference to FIG. FIG. 14 is an edit mode process flowchart of the image projection apparatus 1 according to the present embodiment.

  As shown in FIG. 14, when the edit mode process is started, the control unit 108 of the image projection apparatus 1 performs the edit mode projection process in step S120. This editing mode projection process simultaneously projects the main image 21 based on the image information and the sub-image 23 based on the editing information. This process is a process from step S130 to S135 in FIG. 15, and will be described later.

  When the edit mode projection process in step S120 ends, the control unit 108 shifts the process to the projection area setting process in step S121. In this projection area setting process, the projection areas of the main image 21 and the sub image 23 projected in the edit mode projection process in step S120, that is, the positions of the main image projection area 24 and the sub image projection area 25 are changed. This process will be described later, which is a process from step S150 to S153 in FIG.

  When the projection area setting process in step S121 ends, the control unit 108 proceeds to the comment editing process in step S122. In this comment editing process, the sub-image 23 to be projected on the sub-image projection area 25 is edited based on the text information acquired from the terminal device 4. This process is a process from step S180 to S188 in FIG. 21, and will be described later.

  When the comment editing process in step S122 ends, the control unit 108 determines whether or not an instruction to save the setting contents is given. This determination is made based on whether or not the storage switch 208 of the remote controller 2 is pressed. In this process, if it is determined that the setting content is instructed (step S123: Yes), the control unit 108 performs a saving process (step S124). This storing process stores setting information. This process is a process from step S190 to S192 in FIG. 22, and will be described later. On the other hand, when the storage of the setting content is not instructed, the control unit 108 proceeds to step S121.

  When the storage process in step S124 ends, the control unit 108 ends the edit mode process.

  Next, the edit mode projection processing in step S120 will be specifically described with reference to FIG. FIG. 15 is an edit mode projection processing flowchart of the image projection apparatus 1 according to this embodiment.

  As illustrated in FIG. 15, when the control unit 108 starts the editing mode projection process, the setting information associated with the main image 21 projected in the normal mode is stored in the setting information storage area 110 of the storage unit 102. It is determined whether or not (step S130). In this process, if it is determined that the setting information associated with the main image 21 is not stored (step S130: No), the control unit 108 creates new setting information (step S131).

  That is, when determining that the setting information is not stored, the control unit 108 newly creates an edit data list and a comment list associated with the main image 21 in the setting information storage area 110 of the storage unit 102.

  Here, when newly creating the setting information, the coordinate information of the main image projection area 24 is preset by the initial setting. In the present embodiment, (X1, Y1) = (100, 100), (X4). , Y4) = (300, 300). Further, the number of divisions of the sub-image projection area 25 is determined according to the number of terminal devices 4 connected to the image projection apparatus 1 at the time when the edit mode process is started. Is set in advance by the initial setting as in the main image projection area 24.

  In the present embodiment, the association between the main image 21 and the setting information is performed by embedding the file name information of the edit data list in the header portion of the image information of the main image 21. The edit data list and the comment list are associated with each other by the file name of the comment list.

  Here, the image projecting apparatus 1 according to the present embodiment can change the initial setting of such setting information. By adopting such a configuration, the optimal positions of the main image projection area 24 and / or the sub-image projection area 25 can be set in advance depending on the mode of the meeting or the like, so that the meeting or the like can proceed smoothly. it can.

  When the new setting information creation processing is completed, or when the setting information is stored in the setting information storage area 110 of the storage unit 102 in step S130 (step S130: Yes), the control unit 108 projects the main information. The setting information associated with the image 21 is acquired from the setting information storage area 110 (step S132), and the process proceeds to step S133.

  In step S133, the control unit 108 reduces the main image 21 based on the acquired setting information. That is, the control unit 108 sets the main image projection area 24 based on the coordinate information stored in the edit data list, generates main image data having a size corresponding to the set main image projection area 24, and generates the generated main image data. A main image 21 based on the main image data is projected. Here, in the normal mode, the main image projection area 24 is set to be the same area as the entire projection area 20, and therefore, the main image 21 is set by switching from the normal mode to the edit mode. The size of the projection area 24 is reduced.

  Next, the control unit 108 generates sub image data based on the setting information (step S134), and projects the sub image 23 based on the generated sub image data (step S135). That is, the control unit 108 refers to the editing data list and the comment list, sets each sub-image projection area 25 in the main image non-projection area caused by the reduction of the main image projection area 24, and further stores it in the comment list. Based on the text information, sub image data corresponding to the size of each sub image projection area 25 is generated, and the generated sub image data is projected.

  When the process of step S135 ends, the control unit 108 ends the edit mode projection process.

  As described above, the image projection apparatus 1 according to the present embodiment simultaneously applies the main image 21 based on the image information and the sub image 23 based on the text information to the entire projection area 20 without overlapping the main image and the sub image. For projecting, for example, in a meeting using the image projecting apparatus 1, the main image 21 as an image for presentation is projected onto the main image projection area 24, and text information based on the agenda contents of the meeting is projected onto the sub-image projection area 25. By projecting as a sub-image 23, participants in the conference can view the presentation image and the agenda content at the same time, so that the conference can be performed smoothly and the minutes can be edited easily. be able to. Furthermore, since the main image 21 and the sub-image 23 are simultaneously projected using a single image projection device, power consumption can be reduced compared to the case where a plurality of image projection devices are used, and the installation space can be reduced. You can also.

  Next, the projection area setting process in step S121 will be specifically described with reference to FIG. FIG. 16 is a flowchart of the projection area setting process of the image projection apparatus 1 according to this embodiment.

  As shown in FIG. 16, when the projection area setting process is started, the control unit 108 determines whether or not a setting change of the main image projection area 24 is instructed (step S150). This determination is made based on whether or not the main image projection area change switch 206 of the remote controller 2 has been pressed. In this process, when it is determined that the setting change of the main image projection area 24 is instructed (step S150: Yes), the control unit 108 performs a main image projection area setting change process (step S151). This main image projection area setting changing process is a process from steps S160 to S164 in FIG. 17 and will be described later.

  When the setting change of the main image projection area 24 is not instructed in step S150 (step S150: No), the control unit 108 determines whether or not the setting change of the sub image projection area 25 is instructed (step S152). ). This determination is made based on whether or not the sub-image projection area change switch 207 of the remote controller 2 is pressed. In this process, when it is determined that the setting change of the sub image projection area 25 is instructed (step S152: Yes), the control unit 108 performs a sub image projection area setting change process (step S153). This sub-image projection area setting changing process is a process from steps S170 to S176 in FIG. 19, and will be described later.

  When the processes of steps S151 and 153 are completed, or when the setting change of the sub-image projection area 25 is not instructed in step S152 (step S152: No), the control unit 108 ends the projection area setting process.

  Next, the main image projection area setting change process in step S151 will be specifically described with reference to FIGS. FIG. 17 is a main image projection area setting change processing flowchart of the image projection apparatus 1 according to this embodiment, and FIG. 18 is a main image projection area setting change screen.

  As shown in FIG. 17, when the main image projection area setting change process is started, the control unit 108 projects a main image projection area setting change screen on the screen (step S160). As shown in FIG. 18, the main image projection area setting change screen lists items for changing the setting of the main image projection area 24, and the user presses the up key and the down key of the cross key 203 of the remote controller 2. The item for changing the setting of the main image projection area 24 is selected by pressing the enter key 204 with the cursor positioned at the position where the desired change item is displayed.

  Next, the control unit 108 determines whether or not an instruction to change the position of the main image projection area 24 has been given (step S161). This determination is made based on whether or not the determination key 204 of the remote controller 2 is pressed while the cursor is positioned in the position change column of the main image projection area 24. In this process, if it is determined that the position change of the main image projection area 24 has been instructed (step S161: Yes), the control unit 108 proceeds to step S162. In the process of step S161, the remote controller 2 functions as an image position changing unit.

  In step S162, the control unit 108 changes the position of the main image projection area 24 based on an instruction from the user. Specifically, an instruction from the user is given by the remote controller 2, and the main image projection area 24 is moved based on the direction in which the cross key 203 is pressed and the number of times the cross key 203 is pressed.

  In step S161, when the position change of the main image projection area 24 is not instructed (step S161: No), the control unit 108 determines whether or not the size change of the main image projection area 24 is instructed (step S163). ). This determination is made based on whether or not the determination key 204 of the remote controller 2 is pressed while the cursor is positioned in the size change column of the main image projection area 24. In this process, when the size change of the main image projection area 24 is not instructed (step S163: No), the control unit 108 shifts the process to step S161. On the other hand, when determining that the size change of the main image projection region 24 has been instructed (step S163: Yes), the control unit 108 proceeds to step S164. In the process of step S163, the remote controller 2 functions as an image size change instruction unit.

  In step S164, the control unit 108 changes the size of the main image projection region 24 based on an instruction from the user. Specifically, an instruction from the user is given by the remote controller 2, and the control unit 108 enlarges the main image projection area 24 when the upper key of the cross key 203 is pressed, and when the lower key is pressed. Reduce.

  When the processes in steps S162 and S164 are completed, the control unit 108 ends the main image projection area setting process.

  Next, the sub-image projection region setting change process in step S153 will be specifically described with reference to FIGS. FIG. 19 is a sub-image projection area setting change processing flowchart of the image projection apparatus 1 according to the present embodiment, and FIG. 20 is a sub-image projection area setting change screen.

  As shown in FIG. 19, when the sub image projection area setting change process is started, the control unit 108 projects a sub image projection area setting change screen on the screen (step S170). As shown in FIG. 20, items for changing the setting of the sub-image projection area 25 are listed on the sub-image projection area setting change screen, and the user presses the up key and the down key of the cross key 203 of the remote controller 2. The item for changing the setting of the sub-image projection area 25 is selected by pressing the enter key 204 while the cursor is positioned at the position where the desired change item is displayed.

  Next, the control unit 108 determines whether or not an instruction to change the number of divisions of the sub-image projection area 25 is given (step S171). This determination is made based on whether or not the determination key 204 of the remote controller 2 is pressed in a state where the cursor is positioned in the column for changing the division number of the sub-image projection area 25. In this process, if it is determined that an instruction to change the number of divisions of the sub-image projection area 25 is given (step S171: Yes), the control unit 108 proceeds to step S172.

  In step S172, the control unit 108 changes the number of divisions of the sub-image projection area 25 based on an instruction from the user. Specifically, the control unit 108 divides the sub-image projection area 25 according to the number of terminal devices 4 connected to the image projection apparatus 1 when an instruction to change the number of divisions of the sub-image projection area 25 is given. Change the number.

  Next, the control unit 108 determines whether or not an instruction to change the position of the sub-image projection area 25 is given (step S173). This determination is made based on whether or not the determination key 204 of the remote controller 2 is pressed while the cursor is positioned in the position change column of the sub-image projection area 25. In this process, when it is determined that the position change of the sub-image projection area 25 is instructed (step S173: Yes), the control unit 108 shifts the process to step S174. In the process of step S171, the remote controller 2 functions as an image position changing unit.

  In step S174, the control unit 108 changes the position of the sub-image projection area 25 based on an instruction from the user. Specifically, an instruction from the user is given by the remote controller 2, and the sub-image projection area 25 is moved based on the direction in which the cross key 203 is pressed and the number of times the cross key 203 is pressed.

  When the position change of the sub image projection area 25 is not instructed in step S173 (step S173: No), the control unit 108 determines whether or not the size change of the sub image projection area 25 is instructed (step S175). ). This determination is made based on whether or not the determination key 204 of the remote controller 2 is pressed while the cursor is positioned in the size change column of the sub-image projection area 25. In this process, when the size change of the sub-image projection area 25 is not instructed (step S175: No), the control unit 108 shifts the process to step S171. On the other hand, when determining that the size change of the sub-image projection area 25 has been instructed, the control unit 108 proceeds to step S176. In the process of step S175, the remote controller 2 functions as an image size change instruction unit.

  In step S176, the control unit 108 changes the size of the sub-image projection area 25 based on an instruction from the user. Specifically, an instruction from the user is given by the remote controller 2, and the control unit 108 enlarges the sub-image projection area 25 when the upper key of the cross key 203 is pressed, and when the lower key is pressed. Reduce.

  When the processes in steps S172, S174, and S176 are completed, the control unit 108 ends the sub-image projection area setting process.

  Next, the comment editing process in step S122 will be specifically described with reference to FIG. FIG. 21 is a comment editing process flowchart of the image projection apparatus 1 according to this embodiment.

  As shown in FIG. 21, when the comment editing process is started, the control unit 108 determines whether or not a key command is detected by operating the keyboard 312 of the terminal device 4 (step S180). If it is determined in this process that the key command has been detected (step S180: Yes), the control unit 108 edits the text information based on the detected key command (step S181). Specifically, when text information is not stored in the comment list, that is, when the sub-image 23 is not projected on the sub-image projection area 25, text information based on the detected key command is stored in the comment list. When the text information is already stored in the comment list, that is, when the sub-image 23 is projected on the sub-image projection area 25, the text information stored in the comment list is updated based on the detected key command. To do.

  Next, the control unit 108 determines whether or not a change in the size of the sub-image projection area 25 occurs (step S182). This determination is made by determining whether or not the size of the sub-image 23 based on the text information is larger than the set size of the sub-image projection area 25 by editing the text information in step S181. If it is determined in this process that a change in the size of the sub-image projection area 25 occurs (step S182: Yes), the control unit 108 proceeds to step S183.

  In step S183, the control unit 108 determines whether or not the amount of text information is greater than or equal to a predetermined amount. This determination is made based on whether or not the size of the sub image 23 based on the edited text information is larger than the size in which the sub image projection region 25 can be enlarged in the set main image non-projection region. Specifically, when the text information is edited in step S181, it becomes necessary to enlarge the size of the sub-image projection area 25. When the sub-image projection area 25 is further enlarged, the main image projection is performed. When it overlaps with the area | region 24, the control part 108 determines with the information amount of text information being more than predetermined amount. In this process, when it is determined that the amount of text information is greater than or equal to the predetermined amount (step S183: Yes), the control unit 108 changes the coordinate information of the main image projection area 24 so that the main image projection area 24 is reduced. At the same time, the coordinate information of the sub-image projection area 25 is changed so that the sub-image projection area 25 is enlarged (step S184).

  Next, the control unit 108 reduces and projects the main image 21 by reducing the main image projection area 24 based on the coordinate information of the changed main image projection area 24, and further changes the coordinate information of the sub image projection area 25 that has been changed. The sub image projection area 25 is enlarged based on the sub image 23 and the sub image 23 is projected based on the edited text information (step S185).

  As described above, the image projecting apparatus 1 according to the present embodiment reduces the main image projection area 24 and enlarges the sub image projection area 25 when the information amount of the text information exceeds a predetermined amount. The sub image projection region 25 can be enlarged without overlapping the image projection region 24 and the sub image projection region 25, and the sub image 23 based on a large amount of text information is projected onto the enlarged sub image projection region 25. Is possible.

  If it is determined in step S183 that the information amount of the text information is not equal to or greater than the predetermined amount (step S183: No), the control unit 108 changes the coordinate information of the sub-image projection area 25 so that the sub-image projection area 25 is enlarged. (Step S186), the sub-image projection area 25 is enlarged based on the changed coordinate information of the sub-image projection area 25, and the sub-image 23 based on the edited text information is projected (step S187).

  When the processes of step S185 and step S187 are completed, or when no key command is detected in step S180 (step S180: No), the control unit 108 ends the comment editing process.

  Next, the storing process in step S123 will be specifically described with reference to FIGS. FIG. 22 is a storage process flowchart of the image projection apparatus 1 in the present embodiment, and FIG. 23 is a storage process screen of the image projection apparatus 1 in the present embodiment.

  As illustrated in FIG. 22, when starting the storage process, the control unit 108 projects a storage processing screen on the screen (step S190). This save processing screen is a screen that allows the user to select whether or not to save the change in the setting contents. The user is changed in the projection area setting process in step S121 or the comment editing process in step S122. Or whether to save the contents of the newly set setting information. To select whether or not to save, press the up key and the down key of the cross key 203 of the remote controller 2, and press the enter key 204 with the cursor positioned at the position where the desired option is displayed. Is done by.

Next, the control unit 108 determines whether or not an instruction to save the contents of the setting information has been issued (step S191). This determination is made based on whether or not the determination key 204 of the remote controller 2 is pressed, and is determined based on whether or not the cursor is positioned at “Yes” when the determination key 204 is pressed. is there. If it is determined in this process that an instruction to save the contents of the setting information is given (step S191: Yes), the control unit 108 reflects the changed contents in the edit data list and the comment list (step S192), and ends the saving process. .
(Specific operation of terminal device 4)
Next, an example of a specific operation of the terminal device 4 will be described with reference to FIG. FIG. 24 is a main process flowchart of the terminal device 4 in the present embodiment.

As shown in FIG. 24, when a power switch (not shown) of the terminal device 4 is pressed, the CPU 305 of the terminal device 4 performs wireless communication for enabling text information to be transmitted to the image projection device 1 by wireless communication. Is started (step S200), and wireless connection with the image projection apparatus 1 is performed (step S201).

Next, the CPU 305 determines whether or not a key input from the keyboard 312 has been detected (step S202). In this process, if it is determined that a key input has been detected (step S202: Yes), the control unit 108 transmits a key command corresponding to the detected key input to the image projection apparatus 1 via the wireless communication unit 309 (step S202). S203).

  Next, the CPU 305 determines whether or not the wireless communication application has ended (step S204). In this process, when the wireless communication application has not ended (step S204: No), or when no key input is detected in step S202, the CPU 305 moves the process to step S202.

  If it is determined in step S204 that the wireless communication application has ended (step S204: Yes), the CPU 305 determines whether the power is turned off (step S205). In this process, if it is determined that the power is not turned off (step S205: No), the CPU 305 moves the process to step S200. On the other hand, if it determines with the power supply having been turned off (step S205: Yes), CPU305 will complete | finish a terminal device main 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.

  For example, in the present embodiment, the connection method between the image projection device 1 and the terminal device 4 is based on wireless communication, but is not limited thereto, and may be based on wired communication such as a wired LAN, or a USB cable. It is good also as connecting directly by such as.

  In this embodiment, when the main image 21 and the sub image 23 are projected simultaneously in the edit mode, the sub image data is generated after the main image data is generated. The image data may be generated and an image based on the image data may be projected.

  In the present embodiment, the operation for changing the settings of the main image projection area 24 and the sub-image projection area 25 and the operation for saving the setting information are performed by the remote controller 2. Can also be done.

It is a figure which shows the example of the image projected by the image projector in this embodiment. It is a schematic block diagram of the image projector in this embodiment. It is a figure which shows the example of the image projected when the image projector which concerns on this embodiment is connected with the some terminal device. It is a figure which shows the example of a change of the position of the main image projection area | region in all the projection areas of the image projector which concerns on this embodiment. It is the figure which illustrated a mode that the main image projection area | region and the sub image projection area | region changed according to the information content of the text information projected on the sub image projection area | region of the image projector which concerns on this embodiment. 1 is an overall configuration diagram of an image projection system including an image projection apparatus according to the present embodiment. It is a block diagram of the image projector which concerns on this embodiment. It is a figure which shows an example of the edit data list memorize | stored in the memory | storage part of the image projector which concerns on this embodiment. It is a figure for demonstrating the coordinate prescribed | regulated to all the projection areas of the image projector which concerns on this embodiment. It is a figure which shows an example of the comment list memorize | stored in the memory | storage part of the image projector which concerns on this embodiment. It is a block diagram of the terminal device which concerns on this embodiment. It is an external view of the remote control according to the present embodiment. It is a main process flowchart of the image projector which concerns on this embodiment. It is an edit mode process flowchart of the image projector which concerns on this embodiment. It is an edit mode projection process flowchart of the image projector which concerns on this embodiment. It is a projection area setting process flowchart of the image projector which concerns on this embodiment. It is a main image projection area setting change processing flowchart of the image projection device concerning this embodiment. It is a main image projection area setting change screen of the image projection apparatus according to the present embodiment. It is a sub image projection area | region setting change process flowchart of the image projector which concerns on this embodiment. It is a sub image projection area | region setting change screen of the image projector which concerns on this embodiment. It is a comment edit process flowchart of the image projector which concerns on this embodiment. It is a preservation | save process flowchart of the image projector which concerns on this embodiment. It is a preservation | save process screen of the image projector which concerns on this embodiment. It is a main process flowchart of the terminal device which concerns on this embodiment.

Explanation of symbols

S Image Projection System 1 Image Projection Device 2 Remote Control 3 Storage Device 4 Terminal Device 21 Main Image 23 Sub Image 24 Main Image Projection Area 25 Sub Image Projection Area

Claims (7)

An image information acquisition unit that acquires image information, a projection region setting unit that sets a main image projection region for projecting a main image based on the image information, and main image data having a size corresponding to the main image projection region An image generation device configured to project an image based on the image data generated by the image generation unit onto a set projection area.
An editing information acquisition unit for acquiring editing information is provided.
The projection area setting unit reduces the main image projection area when receiving an instruction to switch to an edit mode for projecting a sub-image based on the editing information in addition to the main image, and reduces the main image projection area A sub-image projection area for projecting the sub-image to the main image non-projection area generated by the reduction of
The image generation unit is configured to generate sub-image data corresponding to the size of the sub-image projection area based on the editing information. The editing information acquisition unit acquires editing information from a plurality of terminal devices,
The projection area setting unit sets a plurality of sub-image projection areas, assigns the sub-image projection areas to the terminal devices,
The image projection apparatus according to claim 1, wherein the image generation unit generates sub-image data corresponding to a size of each sub-image projection area based on the editing information.   3. A storage processing unit that stores the editing information acquired by the editing information acquisition unit in a storage unit in association with the image information acquired by the image information acquisition unit. The image projection apparatus described in 1.   The image projection apparatus according to claim 1, wherein the projection area setting unit is capable of changing the set main image projection area and / or the sub-image projection area. Image position specifying means for instructing to change the position of the sub-image projection area and / or the position of the main image projection area,
The image projection apparatus according to claim 4, wherein the projection area setting unit changes the sub-image projection area and / or the main image projection area to a position designated by the sub-image position designation unit. Image size change instruction means for instructing to change the size of the main image projection area and / or the size of the sub-image projection area;
6. The image according to claim 4, wherein the projection area setting unit changes the main image projection area and / or the sub-image projection area to a size designated by the image size designating unit. Projection device.   The projection area setting unit further sets the main image projection area when the information amount of editing information to be projected onto the sub-image projection area becomes a predetermined amount or more in a state where the sub-image projection area is set. The image projection apparatus according to claim 1, wherein the sub-image projection area is enlarged while being reduced.

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