JP2002244631A - Electronic bulletin board device, control method for electronic bulletin board device, and program for making computer implement the same method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electronic bulletin board device which makes it easy to confirm a pointer and smoothly advances presentation when the electronic bulletin board device is operated through a remote controller. SOLUTION: The electronic bulletin board device is equipped with a display screen 101 where images are displayed, a display control part 117 which controls the displayed images, and the remote controller 111 which inputs operation signals for remotely operating the display control part 117 to the display control part 117 and displays the pointer on the display screen 110, and displays the pointer on the display screen 110 at a fixed position as a pointer display start position.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

2. Description of the Related Art Currently, there is an electronic blackboard device used for presentations, conferences and the like. The electronic blackboard device includes a display screen controlled by a computer, and can display the contents of the presentation on the display screen under computer control, and can further edit the displayed image by operation of the computer by the presenter. For this reason, the operator can point a specific part of the image displayed on the display screen with a pointer, or switch the screen displayed according to the description, so that the contents of the presentation can be more easily understood. Can be Note that among electronic blackboard devices, a device that can use an information medium such as the Internet or an optical disk is also called a multimedia board.

2. Description of the Related Art Generally, a display screen of an electronic blackboard device is required to display figures and characters in a size that can be understood by all listeners in a room. For this reason, the size of the display screen of the electronic whiteboard device is relatively large, and the operator often moves across the front of the display screen to indicate the entire area of the display screen. When the operator crosses the display screen, a problem occurs that the view of the listener is blocked and the display screen is difficult to see.

[0003] In order to eliminate such a problem, a remote control device (remote controller) is provided, in which an operator stands on a position where the display screen is not blocked and remotely controls the display screen. As a prior art of an electronic blackboard device provided with a remote controller, there are, for example, the inventions described in JP-A-7-64044 and JP-A-10-283103. In each of the inventions described in JP-A-7-64044 and JP-A-10-283103, a signal generated by a switch or movement of a mouse is assigned to a signal generated by a remote controller, and a display is displayed on the remote controller in the same manner as a mouse. It controls the screen.

[0004] In a presentation using an electronic blackboard device, a listener sometimes complains to a presenter that figures and characters displayed on a display screen are too small to be seen. In such a case, the presenter enlarges the image using the remote controller in the same procedure as that of the mouse, so that the listener can easily see the content displayed on the display screen.

[0005]

However, when the electronic blackboard device is operated by the remote controller, the display screen tends to be difficult for the presenter to see. In particular, the pointer displayed on the display screen is often set to a relatively small size in order to prevent a displayed figure or character from being hidden. For this reason, the presenter cannot confirm the position of the pointer at the start of the presentation, and often searches for the pointer by moving the pointer greatly. Such an operation is not desirable because it hinders the smooth progress of the presentation.

[0006] Also, in the case of enlarging an image using a conventional remote controller, it is necessary to display and select an image enlarging command, which hinders a smooth flow of presentation. In particular, the operation of enlarging an image is an operation that may be frequently performed in an electronic blackboard device that requires all the attendees to understand the displayed image. Therefore, the effect of the enlargement operation on the presentation may be particularly large.

The present invention has been made in view of the above points, and enables a presenter to easily check a pointer even when operating an electronic blackboard device by using a remote controller, so that a presentation can be smoothly performed. It is a first object of the present invention to provide an electronic blackboard apparatus that can be advanced, a control method of the electronic blackboard apparatus, and a program for causing a computer to execute the method.

Further, the present invention enables an electronic blackboard apparatus to be operated by a remote controller, thereby enabling an image to be enlarged without interrupting the flow of the presentation, thereby enabling the presentation to proceed smoothly. It is a second object of the present invention to provide a blackboard device, a control method for an electronic blackboard device, and a program for causing a computer to execute the method.

[0009]

According to an aspect of the present invention, there is provided an electronic blackboard apparatus, comprising: a display screen for displaying an image formed on the basis of image data; Screen control means for controlling an image displayed on the screen, and remote control means for inputting an operation signal for remotely operating the screen control means to the screen control means and displaying a pointer on the display screen. The operation signal causes a pointer to be displayed with a certain position on the display screen as a pointer display start position.

According to the first aspect of the present invention, in the electronic blackboard device, the pointer can always be displayed at a fixed position on the display screen when the display of the pointer is started.

According to a second aspect of the present invention, in the electronic blackboard device, the display start position is at the center of the display screen.

According to the second aspect of the present invention, in the electronic blackboard device, the pointer can always be displayed at the center of the display screen when the display of the pointer is started.

In the electronic blackboard device according to the present invention, the operation signal causes the pointer of the first size to be displayed during a period from the start of display to the movement of the pointer to a predetermined position. After moving to the position
A pointer of a second size smaller than the size of the pointer is displayed.

According to the third aspect of the present invention, a large pointer is displayed until the movement of the pointer is completed, and the size of the pointer can be changed to a small size after the movement is completed.

According to a fourth aspect of the present invention, there is provided an electronic blackboard device, comprising: a display screen for displaying an image formed based on image data; screen control means for controlling an image displayed on the display screen; Remote operation means for inputting an operation signal for remotely operating the screen control means to the screen control means, wherein the operation signal causes an enlarged image obtained by enlarging an image displayed on the display screen to be displayed. It is characterized by the following.

According to the present invention, an operation signal for enlarging a displayed image can be input to the screen control means by remote control.

According to a fifth aspect of the present invention, in the electronic blackboard device, the enlarged image is an image displayed by enlarging an image based on a pointer displayed on the display screen. And

According to the fifth aspect of the present invention, it is possible to easily specify a position to be enlarged in the image to be enlarged by remote control.

According to a sixth aspect of the present invention, in the electronic blackboard device, the control signal further scrolls the displayed enlarged image.

According to the sixth aspect of the present invention, a portion to be displayed in the enlarged image can be easily displayed by remote control.

According to a seventh aspect of the present invention, there is provided a control method for an electronic blackboard apparatus, wherein a screen control step of controlling an image displayed on a display screen displaying an image formed based on image data, and the screen control step A remote operation step of outputting an operation signal for remotely operating the control in and displaying a pointer on the display screen, wherein the operation signal is a constant on the display screen. The pointer is displayed using the position of the pointer as the pointer display start position.

According to the seventh aspect of the present invention, in the electronic blackboard device, the pointer can always be displayed at a fixed position on the display screen when the display of the pointer is started.

According to an eighth aspect of the present invention, in the control method of the electronic blackboard device, the display start position is at the center of the display screen.

According to the eighth aspect of the present invention, in the electronic blackboard apparatus, the pointer can always be displayed at the center of the display screen when the display of the pointer is started.

According to a ninth aspect of the present invention, in the control method of the electronic blackboard device, the operation signal causes the pointer of the first size to be displayed during a period from the start of the display to the movement of the pointer to a predetermined position. After moving to the predetermined position, a pointer of a second size smaller than the first size is displayed.

According to the ninth aspect, a large pointer is displayed until the movement of the pointer is completed, and the size of the pointer can be changed to a small size after the movement is completed.

According to a tenth aspect of the present invention, there is provided a method for controlling an electronic blackboard apparatus, comprising: a screen control step of controlling an image displayed on a display screen displaying an image formed based on image data; A remote operation step of outputting an operation signal for remotely operating the control performed in the step,
A method for controlling an electronic blackboard device, comprising: displaying an enlarged image obtained by enlarging an image displayed on the display screen.

According to the tenth aspect, an operation signal for enlarging a displayed image can be output by remote control.

[0029] In the control method of an electronic blackboard device according to the present invention, the enlarged image is an image displayed by enlarging an image based on a pointer displayed on the display screen. It is characterized by the following.

According to the eleventh aspect, a position to be enlarged in the image to be enlarged can be easily designated by remote control.

According to a twelfth aspect of the present invention, in the control method of the electronic blackboard device, the control signal further scrolls the displayed enlarged image.

According to the twelfth aspect of the present invention, it is possible to easily display a portion to be displayed in the enlarged image by remote control.

According to a thirteenth aspect of the present invention, a program controls a computer to control an image displayed on a display screen displaying an image formed based on image data, and a control in the screen control procedure. And a remote operation procedure for outputting an operation signal for remotely operating the electronic blackboard device, the operation signal including displaying a pointer on the display screen, wherein the operation signal is displayed on the display screen. The pointer is displayed by using a certain position of the pointer as a pointer display start position.

According to the thirteenth aspect of the present invention, in the electronic blackboard device, the pointer can always be displayed at a fixed position on the display screen when the display of the pointer is started.

According to a fourteenth aspect of the present invention, the display start position is at the center of the display screen.

According to the fourteenth aspect of the present invention, in the electronic blackboard device, the pointer can always be displayed at the center of the display screen at the start of the pointer display.

The program according to the present invention is characterized in that the operation signal causes a pointer of a first size to be displayed during a period from the start of the display to the movement of the pointer to a predetermined position. After moving to the first
A pointer of a second size smaller than the size of the pointer is displayed.

According to the fifteenth aspect, a large pointer is displayed until the movement of the pointer is completed.
After the movement is completed, the size of the pointer can be changed to a smaller one.

A program according to a sixteenth aspect of the present invention is provided in a computer, a screen control procedure for controlling an image displayed on a display screen displaying an image formed based on image data, and the program is executed in the screen control procedure. A program for executing a control method of an electronic blackboard device including a remote operation procedure of outputting an operation signal for remotely operating the control, wherein the operation signal enlarges an image displayed on the display screen. And displaying the enlarged image.

According to the sixteenth aspect, an operation signal for enlarging a displayed image can be output by remote control.

A program according to a seventeenth aspect of the present invention is characterized in that the enlarged image is an image displayed by enlarging an image based on a pointer displayed on the display screen.

According to the seventeenth aspect, a position to be enlarged in the image to be enlarged can be easily designated by remote control.

The program according to the invention of claim 18 is characterized in that the control signal further causes the displayed enlarged image to be scrolled.

According to the eighteenth aspect of the present invention, it is possible to easily display a portion to be displayed in the enlarged image by remote control.

[0045]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments 1 and 2 of the present invention will be described below. (Embodiment 1) FIG. 1 is a diagram common to the electronic blackboard devices of Embodiments 1 and 2 of the present invention, and is a diagram for explaining the configuration of the electronic blackboard device. The electronic blackboard device according to the first embodiment includes a display device 118, a control device 110, and a remote controller 1.
It consists of 11. For the control device 110 of the first embodiment, for example, a general-purpose personal computer can be used.

The display device 118 includes a display screen 101 for displaying an image formed based on the image data;
A display control unit 117 for controlling an image displayed on the display screen 101. The display screen 101 of the first embodiment is a screen using an LCD (). The display control unit 117 includes a remote control control unit 102 that controls the remote control 111, a general control unit 103 that controls the display device 118, a communication control unit 104 that controls communication with the control device 110, and the display screen 101. RGB for inputting image data to be displayed as R, G, B data which is pixel data of three colors of red, green, and blue
And an input unit 105. Remote control unit 102,
The general control unit 103 and the communication control unit 104 are connected to each other inside the display control unit 117.

Further, the control device 110 includes a display device 118
Driver 106 for executing communication with the image memory 10 based on a signal input through the communication driver 106
9, drawing software 108 used to draw an image;
R, G, B image data stored in the image memory 109
An RGB output unit 107 for outputting data is provided.

Further, the remote controller 111
An operation signal for remotely operating the remote controller 7 is transmitted to the remote controller controller 10.
In this configuration, a pointer is input to the display control unit 117 through the display screen 2 and a pointer is displayed on the display screen. The remote control 111
A pointer key 112 for displaying a pointer on the display screen 101; an enlargement key 113 for enlarging the displayed image; a reduction key 114 for reducing; a return key 115 for canceling a mode setting for image enlargement / reduction; In order to move the pointer in any of up, down, left and right directions, an up key 116a indicating an upward direction, a right key 116b indicating a right direction, and a down key 116 indicating a downward direction.
c, a movement key 116 composed of a left movement key 116d indicating the left direction.

The configuration described above operates as follows. That is, when the operator operates the remote controller 111 and presses any key, an infrared signal is output. The output infrared signal is received by the remote control unit 102 and input to the display control unit 117. Display control unit 1
The overall control unit 17 analyzes information included in the signal and generates a remote control key code based on the signal.
The remote control key code is the RS232 of the communication control unit 104
C (Recommended Standard 232-C), USB (Universa
l Serial Bus)
6 is input.

The communication driver 106 receives the input remote control key code and sends it to the drawing software 108. The drawing software 108 draws a pointer in the image memory 109 based on the remote control key code, or enlarges or reduces the drawn pointer. The image data written in the image memory 109 is output to the RGB output unit 107
The information is input to the display control unit 117 via the B input unit 105, and is displayed on the display screen 101.

FIG. 2 is a diagram for explaining an example of a pointer displayed on the electronic blackboard device of the first embodiment. In the first embodiment, a signal output from the remote controller 111 causes a pointer to be displayed with a certain position on the display screen 101 as a pointer display start position. In the example shown in FIG. 2, the display start position is set at the center of the display screen 101.

When the pointer key 112 of the remote controller 111 is pressed, the pointer 201 is pressed as shown in FIG.
Is displayed at the center (position a) of the display screen.
By pressing the movement key 116 of the remote controller 111, the displayed pointer 201 moves in the direction of the arrow of the pressed movement key as shown in FIG.
f). Note that the size of the pointer 201 shown in FIG.
In the first embodiment, the pointer has a standard size.

According to the example shown in FIG. 2, since the pointer is always displayed at the center of the display screen 101, the presenter can easily find the pointer at the start of the display of the pointer, so that the presentation can proceed smoothly. Can be.

FIGS. 3 and 4 are diagrams for explaining another example of the pointer displayed on the electronic blackboard device of the first embodiment. According to the example of FIG. 3, when the pointer key 112 of the remote controller 111 is pressed, the pointer 301 is displayed at the position indicated by a on the display screen as shown in FIG. The displayed pointer 301 is
By pressing the first movement key 116, the movement key 116 is moved in the direction of the arrow of the pressed movement key as shown in FIG. 3B (positions b to f).

At this time, in the example shown in FIG. 3, the pointer 301 is displayed in a size larger than the standard size shown in FIG. 2 before reaching the positions a to e. When the pointer reaches the position f, the pointer 301 is displayed as a pointer 302 having a standard size. According to the example shown in FIG. 3, the pointer is displayed in a large size that is easily visible, so that the presenter can easily find the pointer when the display of the pointer starts. The pointer 301 is a pointer 3 of a standard size at the position f.
Since the number is 02, the pointer does not hide the figures and characters displayed on the display screen 101 after moving, and the presentation can proceed smoothly.

In FIG. 3, the position f at which the pointer 301 changes to the pointer 302 is, for example, the pointer 301.
Is the position where it is determined that the movement of the object has been once completed. In this case, the end of the movement of the pointer is determined by, for example, the pointer 30
1 does not move for a predetermined time, or the pointer 3
It can be determined based on the fact that the number of movements of 01 has reached a predetermined number. Alternatively, the pointer size may be returned to a standard size by operating the operation remote controller 111 by the presenter.

FIG. 4 is a diagram for explaining another example of the first embodiment. According to the example shown in FIG. 4, when the pointer key 112 of the remote controller 111 is pressed, the pointer 401 is displayed at the position a on the display screen as shown in FIG. At this time, in the example shown in FIG. 4, the pointer 401 is shown as four arrows pointing up, down, left, and right that can move the pointer when the pointer is larger than the standard size. The pointer 401 is the remote control 1
By pressing the move key 116 of FIG.
Only the pointer 402 pointing in the same direction as the pressed movement key is displayed, and moves in the direction of the arrow (positions b to f).

According to the example shown in FIG. 4, the pointer is larger than the standard size and is displayed as a plurality of arrows, so that the presenter can easily find the pointer when the display of the pointer starts. Also, pointer 4
02 becomes one arrow from the position b and becomes a pointer 403 of the standard size at the position f. For this reason, in the example of FIG.
The presentation can proceed smoothly without hiding the figures and characters displayed in the.

FIG. 5 is a flowchart for explaining a control method of the electronic blackboard device of the first embodiment described above. The process illustrated in the illustrated flowchart is a flowchart of a process for executing the example illustrated in FIG.
This processing is mainly performed by the display control unit 117. In the illustrated flowchart, first, when the processing is started,
For example, when the pointer key 112 is pressed, the pointer 30 is pressed.
It is determined whether a signal instructing display of No. 1 has been input (step S501).

If it is determined in step S501 that the instruction to display the pointer 301 has not been issued (step S501: No), the process waits until the instruction of the pointer 301 is input. If it is determined that the display of the pointer 301 has been instructed (step S501: Y
es) The pointer 301 is displayed at the center (position a) of the display screen (step S502).

Next, the display control unit 117 operates the movement key 11
It is determined whether or not to move the displayed pointer 301 based on the input of the signal output by pressing the button 6 (step S503). If the pointer 301 is to be moved (Step S503: Yes), the movement of the pointer 301 is controlled according to the moving direction indicated by the signal (Step S5).
04). At this time, the display control unit 117 moves the pointer to
It is in a state of being enlarged and displayed on the pointer 301 having a size larger than the standard size. If it is determined in step S503 that the pointer is not to be moved,
(Step S503: No), it waits until an instruction to move the pointer is issued.

The display controller 117 determines whether the movement of the pointer has been completed (step S505). When it is determined that the movement of the pointer has been completed (step S505: Yes), the pointer 301 is displayed as the normally displayed standard-size pointer 302 (step S506). Then, the process ends, and the process waits until the pointer key 112 is pressed and the display of the pointer is started. On the other hand, if it is determined in step S505 that the movement of the pointer has not ended (step S505: No), the flow returns to step S503 to control the movement of the pointer.

Embodiment 2 Next, Embodiment 2 of the electronic blackboard device of the present invention will be described. The electronic blackboard device of the second embodiment has the same configuration as the configuration described in FIG. However, this embodiment is different from the first embodiment in that an enlarged image obtained by enlarging an image displayed on the display screen 101 is displayed by a signal output from the remote controller 111.

FIG. 6 is a diagram for explaining the enlargement processing performed in the second embodiment. 601 shown in FIG.
Indicates an image display area for displaying an image on a display screen not shown in FIG. 602 is
The area of the enlarged image which is the image after the enlargement is shown. When the image displayed in the image display area 601 is enlarged,
The presenter operates the remote controller 111 to display a pointer so as to point to one point (x, y) on 601. Then, an enlargement key 113 of the remote controller 111 is pressed.

As shown in FIG. 6A, the point (x, y)
Are the distance A1 from the right end of the enlarged image 602, the distance A from the right end of the image display area 601, the distance B1 from the lower end of the enlarged image 602, the distance B from the lower end of the image display area 601, and the left end of the enlarged image 602. , The distance C1 from the left end of the image display area 601, the distance D1 from the upper end of the enlarged image 602, and the distance D from the upper end of the image display area 601. At this time, the display control unit 117 enlarges the image by the following formula based on the enlargement ratio N% and the position of the point (x, y) on the image display area 601 by an operation described later. . A: A1 = B: B1 = C: C1 = D: D1 = 1: (1 + N /
100)

[0066] Of the enlarged images, images within the image display area 601 are displayed at a time. At this time, the enlarged image displayed first in the image display area 601 is displayed based on the pointer indicated earlier. In the second embodiment, the enlarged image is displayed at the point (x, y) indicated by the pointer.
Is displayed as the upper left vertex (origin) of the image.

Then, the image display area 601 moves (scrolls) the enlarged image 602 at a constant speed and sequentially displays the entire area of the enlarged image 602. The distance (scroll width) by which the image display area 601 moves at a time is set together with the enlargement ratio by the procedure described below. Note that scrolling is not performed when the end of the enlarged image is displayed by scrolling or when the end of the image can be already displayed at the time of enlargement.

FIG. 7 is a diagram for more specifically explaining the display of the enlarged image described in FIG. FIG. 7 (a)
The presenter operates the pointer key 11 of the remote controller 111.
The state where the pointer 701 is displayed on the image before the enlargement displayed on the image display area 601 by operating the movement key 116 after pressing the button 2 is shown. When the presenter presses the enlargement key 113, an enlarged image is displayed with the point indicated by the pointer 701 as the origin (FIG. 7B).

If the image display area 601 cannot display the entire area of the enlarged image, the presenter operates the moving key 116 of the moving keys 116, for example, to move the enlarged image upward as shown in FIG. Scroll to. By scrolling upward, an enlarged image that is one scroll width higher than the enlarged image shown in FIG. 7B is displayed in the image display area 601. Further, the presenter operates, for example, a leftward movement key of the movement keys 116 as shown in FIG. 7D to scroll the enlarged image to the left. By scrolling to the left, an enlarged image that is one scroll width to the left of the enlarged image shown in FIGS. 7B and 7C is displayed in the image display area 601.

According to the second embodiment described above, the displayed image can be easily enlarged or reduced by operating the keys of the remote controller 111. Therefore, an operation of enlarging an image that may be required in a presentation made using the electronic blackboard device can be performed without stopping the flow of the presentation.

According to the second embodiment, since the enlarged image is displayed with the position at which the pointer is displayed as the origin,
The presenter can easily specify an image to be displayed enlarged. For this reason, the electronic blackboard device according to the second embodiment can proceed with the presentation more smoothly.

FIG. 8 is a view for explaining a screen for setting the scroll width of the enlarged image, the pointer movement amount, the enlargement ratio and the reduction ratio. In the second embodiment, such a screen for setting each value is provided as one of the setting screens for setting necessary for operation of the remote controller. The setting screen shown is
Scroll width setting field 801, pointer movement amount setting field 80
2, an enlargement / reduction ratio setting field 803, an OK key 804, and a cancel key 805 are provided.

In the setting screen shown in FIG. 8, the scroll width is set according to the resolution of the display screen 101. Also, the amount of movement of the pointer is determined by the display screen 1
01 is set according to the resolution. Then, in the process of enlarging or reducing the image, the currently displayed image is enlarged or reduced at the set enlargement ratio and reduction ratio.

Further, according to the electronic blackboard device of the second embodiment, the operator can arbitrarily set the scroll width, the moving amount of the pointer, the enlargement ratio and the reduction ratio of the image from the setting screen. For this reason, the electronic blackboard device of the second embodiment can change the scroll width, the amount of movement of the pointer, the enlargement ratio and the reduction ratio of the image according to the use of the electronic blackboard device and the image to be displayed, so that the electronic blackboard device can be more smoothly. You can proceed with the presentation.

FIGS. 9 and 10 are flow charts for explaining a control method of the electronic whiteboard device of the second embodiment described above. The flowcharts shown in FIGS. 9 and 10 are processes mainly performed by the display control unit 117 of the electronic blackboard device. First, the process shown in the flowchart shown in FIG.
It is determined whether or not the infrared signal output by the remote controller 111 has been received based on whether or not the remote controller key code has been input (step S901).

If it is determined in step S901 that the signal from remote controller 111 has not been received (step S901: No), the process waits until a signal is received. If it is determined that the signal has been received (step S901: Yes), the received signal is
It is determined whether the signal is generated by pressing the button 12 (step S902). When it is determined that the signal output by pressing the pointer key 112 has been received (step S902: Yes), the pointer mode for executing the operation related to the display of the pointer is set (step S9).
03). By setting the pointer mode, the pointer is displayed at the center of the image display area on the display screen 101 (step S904).

If it is determined in step S902 that the received signal is not a signal generated by pressing the pointer key 112 (step S902: N
o), it is determined whether or not the pointer mode has already been set (step S905). If it is determined that the pointer mode has been set (step S905: Yes), it is determined whether or not the up key 116a has been pressed (step S906). If it is determined that the up key 116a has been pressed (step S906: Yes), the pointer is moved up (step S907). If it is determined that the up key 116a has not been pressed (step S90).
6: No), it is determined whether the down key 116c has been pressed (step S908).

In step S908, the down key 1
16c is determined to have been pressed (step S9).
08: Yes), move the pointer down (step S
909). If it is determined that the down key 116c has not been pressed (step S908: No), it is determined whether the right key 116b has been pressed (step S910). If it is determined in step S910 that the right movement key 116b has been pressed (step S910).
910: Yes), and move the pointer to the right (step S911). If it is determined that the right movement key 116b has not been pressed (step S910: No),
It is determined whether the left movement key 116d has been pressed (step S912).

In step S912, the left movement key 1
If it is determined that 16d has been pressed (step S9).
12: Yes), move the pointer to the left (step S)
913). If it is determined that the left movement key 116d has not been pressed (step S912: No), it is determined whether the enlargement key 113 has been pressed (step S912).
914). In step S914, the enlargement key 113
Is determined to have been pressed (step S914:
Yes), an enlargement mode is set to execute processing for enlarging and displaying an image (step S915). Then, the image displayed with the position indicated by the pointer as the origin is enlarged and displayed at a preset magnification (step S916).

If it is determined in step S 914 that the enlargement key 113 has not been pressed (step S 914: No), the display control unit 117 determines whether a signal generated by pressing the return key 115 has been received. Is determined (step S917). Then, the return key 115
Is determined to have been pressed (step S917: Y
es), the enlargement mode is cleared (the enlarged image is returned to 100% display (step S918)), and it is determined again whether the signal output by the remote controller 111 has been received (step S901). If it is not determined in step S917 that the return key 115 has been pressed (step S917: No), it is determined whether a signal output by the remote controller 111 has been received without clearing the set mode (step S917). S901).

Further, the flowchart shown in FIG.
If it is determined in step S905 that the pointer mode has not been set (step S905: No),
The processing moves to the processing shown in FIG.

In the flowchart shown in FIG.
First, the display control unit 117 determines whether or not the enlargement mode has already been set (step S1001). If it is determined that the enlargement mode has not been set (step S1001: No), the process returns to the process described with reference to FIG. 9 and determines whether a signal output by the remote controller 111 has been received (step S901). Step S10
01, if it is determined that the enlargement mode is set (step S1001: Yes), the up key 1
It is determined whether or not 16a has been pressed (step S100).
2).

In step S1002, when it is determined that up key 116a has been pressed (step S100
2: Yes), the display control unit 117 scrolls the displayed enlarged image upward (step S100).
3). If it is determined that the up key 116a has not been pressed (step S1002: No), it is determined whether the down key 116c has been pressed (step S10).
04). Then, when determining that the down key 116c has been pressed (step S1004: Yes), the display control unit 117 scrolls the displayed enlarged image downward (step S1005). Step S10
If it is determined that the down-movement key 116c has not been pressed in step 04 (step S1004: No), it is determined whether or not the right-movement key 116b has been pressed (step S10).
06).

In step S1006, when it is determined that right movement key 116b has been pressed (step S100
6: Yes), the display control unit 117 scrolls the displayed enlarged image rightward (step S100).
7). If it is determined that the right movement key 116b has not been pressed (step S1006: No), it is determined whether the left movement key 116d has been pressed (step S10).
08). Then, when determining that the left movement key 116d has been pressed (step S1008: Yes), the display control unit 117 scrolls the displayed enlarged image to the left (step S1009). Step S10
If it is determined in step 08 that the left movement key 116d has not been pressed (step S1008: No), the enlargement key 1
13 is determined (step S101).
0).

The display control unit 117 determines in step S1010
If it is determined that the enlargement key 113 has been pressed (step S1010: YES), the displayed image is enlarged and displayed (step S1011). If it is determined that the enlargement key 113 has not been pressed (step S1010: No), it is determined whether the reduction key 114 has been pressed (step S1012). Step S1
In 012, when it is determined that the reduction key 114 has been pressed (step S1012: Yes), the displayed image is reduced and displayed (step S1013).
At this time, if the displayed image is a 100% display image, no reduction is performed.

Further, the display control unit 117 determines in step S
If it is determined in step 1012 that the reduction key 114 has not been pressed (step S1012: No), the return key 1
15 is pressed (step S101).
4) As a result of the determination, when the return key 115 is pressed (step S1014: Yes), the mode is cleared (step S1015), and it is determined whether or not the signal output by the remote controller 111 is received (step S901). ). If it is determined that the return key 115 has not been pressed (step S1014: No), it is determined whether a signal output from the remote controller 111 has been received without clearing the mode (step S901).

The control method of the electronic whiteboard device described with reference to FIGS. 5, 9 and 10 is executed by a computer using a program prepared in advance. Such programs include hard disk, floppy (registered trademark)
The program is recorded on a computer-readable recording medium such as a disc, a CD-ROM, an MO, and a DVD, and is executed by being read from the recording medium by the computer. In addition, this program, via the recording medium,
Also, it can be distributed via a network such as the Internet as a transmission medium.

[0088]

As described above, according to the first aspect of the present invention, the pointer is always displayed at a fixed position on the display screen when the display of the pointer is started. In this case, the presenter can easily check the pointer. Therefore, the invention described in claim 1 has an effect that it is possible to provide an electronic blackboard device capable of smoothly performing a presentation.

According to the second aspect of the present invention, since the pointer is always displayed at the center of the display screen, the presenter can easily check the pointer, and the moving distance of the pointer when the pointer moves thereafter Can be relatively short. Therefore, the invention described in claim 2 has an effect that it is possible to provide an electronic blackboard device capable of making a presentation proceed more smoothly.

According to the third aspect of the present invention, a large pointer is displayed until the movement of the pointer is completed, and the size of the pointer is changed to a small size after the movement is completed. Therefore, the presenter can easily check the pointer, and thereafter, the displayed image is not hidden by the pointer. Therefore, the invention described in claim 3 has an effect that it is possible to provide an electronic blackboard device capable of making a presentation proceed more smoothly.

According to the fourth aspect of the present invention, since an operation signal for enlarging a displayed image can be input to the screen control means by remote control, the presentation of the presentation can be performed even when the electronic whiteboard device is operated by the remote control. Allows images to be magnified without interrupting flow. Therefore, the invention described in claim 4 has an effect that it is possible to provide an electronic blackboard device capable of smoothly performing a presentation.

According to the fifth aspect of the present invention, an enlarged image as an image can be obtained by simply designating a position to be enlarged among the images to be enlarged by remote control, so that the presentation can proceed more smoothly. There is an effect that a possible electronic blackboard device can be provided.

According to the sixth aspect of the present invention, it is possible to obtain a magnified image according to an image by easily displaying a portion to be displayed of the magnified image by remote control, and to make the presentation proceed more smoothly. There is an effect that a possible electronic blackboard device can be provided.

According to the present invention, since the pointer is always displayed at a fixed position on the display screen when the display of the pointer is started, the presenter can easily move the pointer even when operating the electronic blackboard device by the remote controller. It is possible to confirm. Therefore, the invention described in claim 7 has an effect that a control method of the electronic blackboard device capable of smoothly proceeding the presentation can be provided.

According to the present invention, since the pointer is always displayed at the center of the display screen, the presenter can easily check the pointer, and the moving distance of the pointer when the pointer moves thereafter Can be relatively short. Therefore, the invention described in claim 8 has an effect that it is possible to provide a control method of the electronic blackboard device capable of making the presentation proceed more smoothly.

According to the ninth aspect of the present invention, a large pointer is displayed until the movement of the pointer is completed, and the size of the pointer is changed to a small size after the movement is completed. Therefore, the presenter can easily check the pointer, and thereafter, the displayed image is not hidden by the pointer. Therefore, the invention described in claim 9 has an effect that it is possible to provide a control method of the electronic blackboard device capable of making the presentation proceed more smoothly.

According to the tenth aspect of the present invention, since an operation signal for enlarging a displayed image can be input to the screen control means by remote control, the presentation of the presentation can be performed even when the electronic blackboard device is operated by the remote control. Allows images to be magnified without interrupting flow. Therefore, the invention according to claim 10 has an effect that a control method of the electronic blackboard device capable of smoothly performing a presentation can be provided.

According to the eleventh aspect of the present invention, an enlarged image as an image can be obtained by simply designating a position to be enlarged among images to be enlarged by remote control.
There is an effect that a control method of the electronic blackboard device capable of making the presentation proceed more smoothly can be provided.

According to the twelfth aspect of the present invention, a portion desired to be displayed in the enlarged image is easily displayed by remote control, so that an enlarged image as an image is obtained.
There is an effect that a control method of the electronic blackboard device capable of making the presentation proceed more smoothly can be provided.

According to the thirteenth aspect of the present invention, when the display of the pointer is started, the pointer is always displayed at a fixed position on the display screen. It is possible to confirm. Therefore, the invention described in claim 13 has an effect that a program can be provided for causing a computer to execute a control method of an electronic blackboard device capable of smoothly performing a presentation.

According to the fourteenth aspect of the present invention, since the pointer is always displayed at the center of the display screen, the presenter can easily check the pointer, and the moving distance of the pointer when the pointer moves thereafter Can be relatively short. Therefore, the invention according to claim 14 has an effect that a program can be provided for causing a computer to execute a control method of an electronic blackboard device capable of making a presentation proceed more smoothly.

According to the present invention, a large pointer is displayed until the movement of the pointer is completed, and the size of the pointer is changed to a small size after the movement is completed. Therefore, the presenter can easily check the pointer, and thereafter, the displayed image is not hidden by the pointer. Therefore, the invention according to claim 15 has an effect that a program can be provided for causing a computer to execute a control method of an electronic blackboard device capable of making a presentation proceed more smoothly.

According to the sixteenth aspect of the present invention, since an operation signal for enlarging a displayed image can be input to the screen control means by remote control, the presentation of the presentation can be performed even when the electronic blackboard device is operated by the remote control. Allows images to be magnified without interrupting flow. Therefore, the invention according to claim 16 has an effect that a program can be provided for causing a computer to execute a control method of an electronic blackboard device capable of smoothly performing a presentation.

According to a seventeenth aspect of the present invention, an enlarged image as an image can be obtained by simply designating a position to be enlarged among images to be enlarged by remote control.
There is an effect that a program can be provided for causing a computer to execute a control method of an electronic blackboard device capable of making a presentation proceed more smoothly.

According to the eighteenth aspect of the present invention, a portion desired to be displayed in the enlarged image is easily displayed by remote control, thereby obtaining an enlarged image as an image.
There is an effect that a program can be provided for causing a computer to execute a control method of an electronic blackboard device capable of making a presentation proceed more smoothly.

[Brief description of the drawings]

FIG. 1 is a diagram illustrating a configuration of an electronic blackboard device common to electronic blackboard devices according to Embodiments 1 and 2 of the present invention.

FIG. 2 is a diagram illustrating an example of a pointer displayed on the electronic blackboard device according to the first embodiment of the present invention.

FIG. 3 is a diagram illustrating another example of a pointer displayed on the electronic blackboard device according to the first embodiment of the present invention.

FIG. 4 is a diagram for explaining still another example of the pointer displayed on the electronic blackboard device according to the first embodiment of the present invention.

FIG. 5 is a flowchart illustrating a control method of the electronic blackboard according to the first embodiment of the present invention.

FIG. 6 is a diagram for explaining an enlargement process according to the second embodiment of the present invention;

FIG. 7 is a diagram for more specifically explaining the display of the enlarged image described in FIG. 6;

FIG. 8 is a diagram for describing a screen for setting a scroll width, a pointer movement amount, an enlargement ratio, and a reduction ratio of an enlarged image according to the second embodiment of the present invention.

FIG. 9 is a flowchart illustrating a control method of the electronic blackboard according to the first embodiment of the present invention.

FIG. 10 is another flowchart for explaining the control method of the electronic blackboard according to the first embodiment of the present invention.

[Explanation of symbols]

 101 display screen 102 remote control control unit 103 general control unit 104 communication control unit 105 RGB input unit 106 communication driver 107 RGB output unit 108 drawing software 109 image memory 110 control device 111 remote control 112 pointer key 113 enlargement key 114 reduction key 115 return key 116 Movement key 117 Display control unit 118 Display device 601 Image display area 602 Enlarged image 801 Scroll width setting field 802 Pointer movement amount setting field 803 Enlargement / reduction rate setting field 804 OK key 805 Cancel key

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) G09G 5/08 G09G 5/08 D 5/34 5/34 Z 5/36 5/36 520F F term (reference 2C071 CA02 DB09 5B087 AB09 AE02 5C082 AA03 AA24 CA02 CA33 CA72 CB01 CB06 DA87 MM09 MM10 5E501 AA02 AA16 AC14 BA03 BA05 CA02 CC02 FA02 FB03 FB32 FB22 FB32

Claims (18)

[Claims] A display screen for displaying an image formed based on image data; a screen control means for controlling an image displayed on the display screen; and an operation signal for remotely operating the screen control means. Remote control means for inputting to the screen control means and displaying a pointer on the display screen, wherein the operation signal causes the pointer to be displayed with a certain position on the display screen as a pointer display start position. Electronic blackboard device characterized by the following. 2. The electronic blackboard device according to claim 1, wherein the display start position is a center of the display screen. 3. The operation signal according to claim 1, further comprising: displaying a pointer of a first size during a period from the start of display to moving to a predetermined position, and displaying the pointer of the first size after moving to the predetermined position. The electronic whiteboard device according to claim 1, wherein a pointer having a second size smaller than the second size is displayed. 4. A display screen for displaying an image formed based on image data; a screen control means for controlling an image displayed on the display screen; and an operation signal for remotely operating the screen control means. An electronic whiteboard device, comprising: remote operation means for inputting to a screen control means; wherein the operation signal causes an enlarged image obtained by enlarging an image displayed on the display screen to be displayed. 5. The electronic blackboard device according to claim 4, wherein the enlarged image is an image displayed by enlarging an image based on a pointer displayed on the display screen. 6. The electronic blackboard device according to claim 4, wherein the control signal further scrolls the displayed enlarged image. 7. A screen control step of controlling an image displayed on a display screen displaying an image formed based on image data, outputting an operation signal for remotely operating control in the screen control step, A remote operation step of displaying a pointer on a display screen, wherein the operation signal causes the pointer to be displayed with a fixed position on the display screen as a pointer display start position. Control method for an electronic blackboard device. 8. The method according to claim 7, wherein the display start position is at the center of the display screen. 9. The operation signal causes the pointer of a first size to be displayed during a period from the start of display to the movement of a predetermined position, and the movement of the pointer to the first size after the movement to the predetermined position. The method according to claim 7, wherein a pointer having a second size smaller than the second size is displayed. 10. A screen control step of controlling an image displayed on a display screen displaying an image formed based on image data, and outputting an operation signal for remotely controlling the control performed in the screen control step. And a remote operation step of controlling the electronic blackboard device, the electronic signal device comprising: an operation signal for displaying an enlarged image obtained by enlarging an image displayed on the display screen. Control method of electronic blackboard device. 11. The electronic blackboard device according to claim 10, wherein the enlarged image is an image displayed by enlarging an image based on a pointer displayed on the display screen. Control method. 12. The method according to claim 10, wherein the control signal further scrolls the displayed enlarged image. 13. A screen control procedure for controlling an image displayed on a display screen for displaying an image formed based on image data, and an operation signal for remotely operating control in the screen control procedure to a computer. And a remote operation procedure for displaying a pointer on the display screen. A program for executing a control method of an electronic blackboard device characterized by displaying a pointer. 14. The program for executing a control method of an electronic blackboard device according to claim 13, wherein the display start position is a center of the display screen. 15. The operation signal causes a pointer of a first size to be displayed during a period from the start of display to a movement to a predetermined position, and the movement of the pointer to the first size after the movement to the predetermined position. 15. A pointer having a second size smaller than the second size is displayed.
A program for executing the control method for an electronic blackboard device according to item 1. 16. A screen control procedure for controlling an image displayed on a display screen for displaying an image formed based on image data on a computer, and an operation signal for remotely controlling the control performed in the screen control procedure A program for executing a control method of an electronic blackboard device including a remote operation procedure of outputting an operation signal, wherein the operation signal causes an enlarged image obtained by enlarging an image displayed on the display screen to be displayed. A program for executing a control method of an electronic blackboard device to be executed. 17. The electronic whiteboard apparatus according to claim 16, wherein the enlarged image is an image displayed by enlarging an image based on a pointer displayed on the display screen. A program for executing the control method. 18. The program for executing the control method of an electronic blackboard device according to claim 16, wherein the control signal further scrolls the displayed enlarged image.