JP6087602B2 - Electronic blackboard - Google Patents

Description

  The present invention relates to an electronic blackboard, and more particularly to an electronic blackboard capable of writing with an input pen an image displayed on the electronic blackboard.

  In recent years, opportunities for using electronic blackboards have increased in educational settings. The user operates the electronic blackboard to easily perform processing such as capturing content and moving images on the web, displaying three-dimensional figures and graphs, and rotating, enlarging, reducing, and moving the displayed image. Can do. By using the electronic blackboard, it is possible to conduct lessons and presentations with higher density and higher reciprocity than before.

  When using an electronic blackboard, there is frequently an opportunity to write on an image displayed on the electronic blackboard using an input pen. Therefore, in order to effectively use the electronic blackboard, it is an important issue how quickly and accurately the display image can be written using the input pen.

JP 60-201426 A

  In relation to the above-described problem, Patent Document 1 discloses an invention related to an apparatus that displays a cursor mark that follows the movement of an input pen. In this apparatus, when the tip of the input pen approaches the entry surface of the transparent digitizer, the coordinate position is detected, and a cursor mark is displayed at the coordinate position. When the input pen is moved to the target position while the cursor mark is displayed, the cursor mark is also moved in accordance with the movement of the input pen. When the tip of the input pen is brought into contact with the entry surface at a position desired by the user, the input position is determined. Therefore, the user can grasp an accurate input position before writing using the input pen.

  However, according to the apparatus disclosed in Patent Document 1, the user can know the accurate input position before writing, but the input pen such as the color, thickness, and line type of the input locus input by the input pen can be used. You cannot know information about settings. If the settings on the input pen are different from the settings desired by the user, the user will notice the difference after writing and must correct the writing. Such correction work is useless work for the user. Therefore, when writing using an input pen, it is desirable that the user can grasp not only the input position but also the settings of the input pen before writing.

  In view of the above, an object of the present invention is to provide an electronic blackboard that allows the user to know the input position and input pen settings before writing.

  An electronic blackboard according to an aspect of the present invention is an electronic blackboard that can be operated by an input pen for detecting a display device having a display surface and position coordinates indicated by the input pen in a predetermined area on the display surface. In response to detection of position coordinates by the input pen position coordinate detection means, storage means for storing information related to the setting of the input pen, and input pen position coordinate detection means, the input pen position coordinates are set by the storage means. First display means for reading information and displaying a cursor mark at a position corresponding to the position coordinates on the display surface in a different manner depending on the setting of the input pen.

  According to the electronic blackboard of the present invention, when the input pen is brought close to the display device, a cursor mark indicating the input position and the setting of the input pen is displayed. Therefore, the user can confirm whether or not the input pen is set to the setting desired by the user before writing. Furthermore, since the cursor mark indicates the input position, the user does not make a mistake in the writing position. By displaying the cursor mark as described above, the user can quickly and accurately write without making an input mistake.

1 is a diagram illustrating an overall configuration of an image display system according to a first embodiment of the present invention. It is a figure which shows the internal structure of the input pen shown in FIG. It is a control block diagram which shows the hardware constitutions of the electronic blackboard shown in FIG. It is a flowchart which shows the control structure of the computer program run with the electronic blackboard which concerns on the 1st Embodiment of this invention. It is a figure which shows the various aspects of the cursor mark displayed on the electronic blackboard shown in FIG. It is a figure which shows the various aspects of the pop-up display displayed on the electronic blackboard which concerns on the 2nd Embodiment of this invention. It is a part of flowchart which shows the control structure of the computer program run with the electronic blackboard which concerns on the 3rd Embodiment of this invention. It is a part of flowchart which shows the control structure of the computer program run with the electronic blackboard which concerns on the 3rd Embodiment of this invention. It is a figure which shows that the aspect of a cursor mark changes by switching the switch of the input pen which concerns on the 3rd Embodiment of this invention.

  In the following description and drawings, the same parts are denoted by the same reference numerals. Therefore, detailed description thereof will not be repeated.

[First Embodiment]
<Overall system configuration>
Referring to FIG. 1, an electronic blackboard 100 according to the present embodiment is a display input device using a large liquid crystal display. The electronic blackboard 100 includes a large-screen touch panel display 110 as will be described later. The touch panel display 110 includes a touch panel function, and can switch the display of document images according to the page order by a touch gesture operation (for example, a flick operation). That is, when a touch gesture operation (flick) is performed so that the screen of the electronic blackboard 100 is lightly flicked with a finger or the like in the direction in which the original image (page) is to be moved, the display of the original image (page) is moved.

  The electronic blackboard 100 can activate various application software, and realizes a function corresponding to the activated application software. The application software includes pen software that realizes drawing (handwriting input) using the dedicated input pen 300, which is a main function of the electronic blackboard 100.

  If the input pen 300 is brought close to the touch panel display 110 while the pen software is activated, the electronic blackboard 100 detects the position of the input pen 300 and displays the cursor mark 500 at the position coordinates on the screen corresponding to the position. . The cursor mark 500 is detected when the distance from the input pen 300 to the touch panel display 110 becomes smaller than a predetermined value. Hereinafter, the fact that the input pen 300 is in a detectable position may be described as “the input pen 300 is in a predetermined area”. For this detection, electromagnetic induction or electrostatic coupling is used.

  A cursor mark 500 indicates which part on the screen the input position by the input pen 300 corresponds to. In accordance with the movement of the input pen 300, the position where the cursor mark 500 is displayed also changes. When the input pen 300 goes out of the predetermined area, the display of the cursor mark 500 disappears. Also, the cursor mark 500 disappears when the tip of the input pen 300 is touched on the screen.

  Referring to FIG. 2, the input pen 300 includes a detection unit (not shown) that detects whether the tip 320 of the input pen touches the screen of the electronic blackboard 100, and each functional unit that configures the input pen 300. A CPU (Central Processing Unit) (not shown) to be controlled and a switch 310 are included. The switch 310 is automatically switched on / off depending on whether the tip 320 of the input pen 300 is touched on the screen. In response to this switching, a signal notifying that the switch 310 has been switched is transmitted from the input pen 300 to the electronic blackboard 100.

  When the tip 320 of the input pen 300 is not touching the screen, the switch 310 is turned off and the cursor mark 500 is displayed on the screen. When the tip 320 is touching the screen, the switch 310 is turned on and the cursor mark 500 is not displayed. Thus, whether or not the cursor mark is displayed is determined by whether the switch 310 is on or off, that is, whether or not the tip 320 of the input pen 300 is touching the screen of the electronic blackboard 100.

<Hardware configuration>
With reference to FIG. 3, the electronic blackboard 100 includes a touch panel display 110 and a control device 150 including a computer.

  The control device 150 executes a predetermined program, thereby realizing a CPU 152 for realizing overall control of the electronic blackboard 100 and a read-only memory for storing a program read by the CPU 152 when the electronic blackboard 100 is turned on. Memory (Read Only Memory (ROM)) 154, Random Access Memory (RAM) 156 used by CPU 152 as working memory, and record when electronic blackboard 100 is powered off Can be performed, an input processing unit 160 that determines processing contents based on information (coordinate data) obtained from the touch panel display 110 (detection device 130 described later), and a touch panel according to the control of the CPU 152. Depending on display 110 A display control unit 162 that controls display of an image, a video memory (video RAM) 164 that holds an image to be displayed on the touch panel display 110, a network device 166 that provides connection to the network 400 for the electronic blackboard 100, And a bus 168 that connects them together and allows communication of data and control signals between them.

  The ROM 154 stores a program and data for setting the entire electronic blackboard 100 so that the CPU 152 executes the electronic blackboard 100 when the power is turned on and the electronic blackboard 100 performs a predetermined operation. A program for realizing the operation of the electronic blackboard 100 is also stored in the ROM 154. The recording unit 158 is a non-volatile storage device that retains data even when power is turned off, and is, for example, a hard disk drive or a flash memory. The recording unit 158 may be detachable from the electronic blackboard 100. The recording unit 158 can also store a part of the program executed by the CPU 152. During normal operation, the CPU 152 loads a program from the ROM 154 or the recording unit 158 onto the RAM 156 via the bus 168, and sequentially reads and executes instructions from an address designated by a program counter (not shown). The CPU 152 controls each part of the electronic blackboard 100 in accordance with programs stored in the ROM 154 and the recording part 158.

  Furthermore, the recording unit 158 stores an image displayed on the touch panel display 110 as image data under the control of the CPU 152. This image data can be used as image data for printing. That is, the transmitted image data can be printed by transmitting the image data stored in the recording unit 158 to an image forming apparatus (not shown).

  The network device 166 transmits and receives image data to and from an image forming device (not shown) connected to the network 400 under the control of the CPU 152. Image data received from the outside by the electronic blackboard 100 via the network device 166 is stored in the RAM 156 or the recording unit 158.

  The touch panel display 110 includes a display output device 120 having a display unit 122 that displays an image on a predetermined display surface, and a detection device 130. The detection device 130 includes a detection unit 132 and a microcomputer 134 that controls the detection unit 132. The microcomputer 134 includes a CPU 134a and an external output unit 134b that outputs information (coordinate data) detected by the detection unit 134a to the outside (input processing unit 160). The detection unit 132 has a function of detecting the position of the input pen 300, whether the switch 310 shown in FIG. 2 is on or off, that is, whether the tip 320 of the input pen 300 is in contact with the touch panel display 110. And a function of detecting input to the touch panel display 110 by the input pen 300 at regular intervals.

  The display unit 122 is a display panel such as a liquid crystal display panel capable of full color display, and displays an image stored in the video RAM 164 under the control of the display control unit 162. The display control unit 162 includes a drive unit for driving the display unit 122, reads image data stored in the video RAM 164 at a predetermined timing, and displays a signal for causing the display unit 122 to display an image on the display unit 122. Output. The image data to be displayed is generated by the CPU 152 from the information on the RAM 156 and the information recorded in the recording unit 158 and transmitted to an address corresponding to each display pixel on the video RAM 164.

  The electronic blackboard 100 can activate various application software, and realizes a function corresponding to the activated application software. The application software includes pen software that realizes drawing with the input pen 300, which is a main function of the electronic blackboard 100.

  With reference to FIGS. 1 and 3, when the pen software is activated, a screen 200 as shown in FIG. The display surface of the touch panel display 110 is divided into a drawing area 210 where the user can draw and a function button area 220 for designating a function used by the user. When an application capable of drawing on the electronic blackboard 100 is activated, the user can draw in the drawing area 210 by a touch operation. The XY coordinates of the point touched by the user are detected at predetermined intervals by the detection unit 132, and the data of the coordinates are transmitted to the control device 150. The control device 150 (CPU 152) writes a predetermined value to a memory address provided in the RAM 156 according to the received coordinate data. This memory address is a memory address provided in the RAM 156 corresponding to the video RAM 164, and the predetermined value is written so as to correspond to the detected position. These detected image data may be recorded on the video RAM 164, but here, in addition to the area for storing the image data in the video RAM 164, an area for storing drawing data is provided in the RAM 156. Suppose.

  A plurality of function buttons are displayed in the function button area 220. Functions assigned to the function buttons include, for example, a drawing function by touch operation (selectable pen type), a function to open a saved file (image data), an eraser function to delete drawing of a predetermined area, a RAM 156 or a recording A function for displaying the image data stored in the unit 158, a function for saving the displayed image data, a function for printing the displayed image data, and the like. Each function button is displayed as an icon. For example, by selecting any of the pen buttons 222, 224, and 226, it is possible to perform drawing in the drawing area 210. When the selected pen button is touched again, a palette for changing the thickness of the drawing line and the color of the line is displayed. By selecting the thickness and color of the line displayed in the palette, the thickness of the line to be drawn and the color of the line are changed. Information regarding the settings of the input pen, such as the changed line thickness and line color, is temporarily stored in the RAM 156. Further, by selecting the data capture button 228, the image data registered in the reception folder is captured, and the image indicated by the image data is displayed.

  As described above, when the above pen software is used, the image indicated by the received image data can be displayed in the drawing area 210 and drawn on the displayed image. The setting of the input pen 300 can be easily changed by operating the function button area 220. By operating the input pen 300, the user can write to the image data displayed on the electronic blackboard 100 as if writing with a writing instrument.

<Software configuration>
With reference to FIG. 4, a control structure of a computer program 600 executed on the electronic blackboard 100 in response to activation of pen software for executing drawing with the input pen 300 will be described.

  The computer program 600 detects step 612 for detecting the position of the input pen 300 and step 614 for determining whether or not the detection in step 612 is successful, that is, whether or not the input pen 300 is within a predetermined area. Including. If the determination result of step 614 is negative, the detection of the position of the input pen 300 is executed again (step 612).

  In response to the determination result in step 614 being affirmative, the computer program 600 displays position coordinates on the screen corresponding to the position of the input pen 300 detected in step 612 and information related to the settings of the input pen 300. Step 616 to be acquired, step 618 to display a cursor mark on the screen based on the information acquired in step 616, and step 620 to determine whether or not the switch 310 of the input pen 300 is turned on are further included.

  The position coordinates acquired in step 616 correspond to the position of the input pen 300, and indicate the position where writing is performed when the input pen 300 is at the position. Further, the information related to the setting of the input pen acquired in step 616 indicates information related to how the input trajectory is displayed when drawing is performed using the input pen. Specifically, it is information relating to the color, thickness, line type, and the like of the input pen. In step 618, a cursor mark indicating such information is displayed. If the determination result of step 620 is negative, the detection of the position of the input pen 300 is executed again (step 612).

  The computer program 600 is displayed on the screen in response to the determination result in step 620 being affirmative, that is, in response to detecting that the tip 320 of the input pen 300 is in contact with the touch panel display 110. Step 622 for stopping the display of the cursor mark, Step 624 for detecting the position coordinate of the tip 320 in contact with the touch panel display 110, Step 626 for taking in the data of the position coordinate detected in Step 624, and the input pen 300 The method further includes a step 628 of determining whether the switch 310 is turned off, that is, whether the tip 320 of the input pen 300 is separated from the touch panel display 110.

  If the determination result in step 628 is negative, the tip 320 remains in contact with the touch panel display 110, control returns to step 624, and the position coordinates of the tip 320 in contact are detected again. If the determination is affirmative, that is, if the input pen 300 has left the touch panel display 110, control returns to step 612, and the position coordinates of the input pen 300 are detected again.

<Operation>
The operation of the electronic blackboard 100 according to the present embodiment based on the above-described structure and flowchart will be described with reference to FIGS.

  When the pen software for drawing is activated, the detection unit 132 detects the position of the input pen 300 (step 612). Note that the position detected at this time is the position of the tip 320 of the input pen 300. When the position is detected, the CPU 134a causes the external output unit 134b to output data relating to the detected position. The input processing unit 160 receives the data, and the CPU 152 determines whether or not the detection is successful, that is, whether or not the input pen 300 has entered the predetermined area (step 614).

  If the determination in step 614 is affirmative, that is, if the input pen 300 is within the predetermined area, the CPU 152 calculates the position coordinates on the display unit 122 corresponding to the position detected by the detection unit 132 in step 612. Then, the position coordinate data is transmitted to the display control unit 162. The CPU 152 further reads out information related to the settings of the input pen 300 from the RAM 156 and transmits the information to the display control unit 162 (step 616). If the determination in step 614 is negative, control returns to step 612, and the detection unit 132 detects the position of the input pen 300 again.

  The display control unit 162 causes the display unit 122 to display a cursor mark based on the position coordinates received in step 616 and information related to the setting of the input pen 300 (step 618). The cursor mark is displayed at position coordinates corresponding to the position of the input pen 300.

  Referring to FIG. 5, the display mode of the cursor mark displayed in step 618 is determined according to the setting of input pen 300. For example, when the input pen 300 is set to red, the cursor mark 512 is also displayed in red (FIG. 5A). When the input pen 300 is set to blue, the cursor mark 514 is also displayed in blue (FIG. 5). (B)). Further, when the input pen 300 is set to a thick line, the cursor mark 516 is also displayed with a thick line (FIG. 5C). When the input pen 300 is set to a thin line, the cursor mark 518 is also displayed with a thin line (FIG. 5). (D)). Similarly, a cursor mark 520 displayed with a dotted line (FIG. 5E), a cursor mark 522 displayed with a wavy line (FIG. 5F), and a cursor mark 524 displayed with a double line (FIG. 5G )) And the cursor mark 526 (FIG. 5H) displayed by an arrow line, the display mode of the cursor mark also changes depending on the line type of the input pen 300.

  Of course, it is also possible to display information regarding both the color and line type of the input pen 300 with a single cursor mark. For example, when the setting of the input pen 300 is “red / wavy line”, the display unit 122 is displayed in red with a wavy line cursor mark.

  Referring to FIG. 4, while the cursor mark is displayed on display unit 122, CPU 152 detects whether switch 310 shown in FIG. 2 is turned on, that is, detection unit 132 detects tip 320 of input pen 300. It is periodically determined whether or not (step 620). If the determination result is negative, the CPU 152 controls the detection device 130 to continue detecting the position of the input pen 300 (step 612). Therefore, the cursor mark is continuously displayed while the position of the input pen 300 is detected and the tip 320 of the input pen 300 is not in contact with the display unit 122.

  Furthermore, since the position coordinates of the cursor mark correspond to the position of the input pen 300, the cursor mark display moves as the input pen 300 moves. In detail, the movement of the cursor mark display is as follows. The CPU 152 periodically creates image data in which a cursor mark is displayed at a position coordinate corresponding to the position of the input pen 300, and transmits the image data to a corresponding address on the video RAM 164. Further, the CPU 152 erases past image data stored in the video RAM 156. That is, the image data stored in the video RAM 156 is periodically updated, and the display control unit 162 causes the display unit 122 to display the updated image data. Therefore, when the input pen 300 moves, the position where the cursor mark is displayed also moves.

  If the determination result in step 620 is affirmative, that is, if the detection unit 132 detects that the tip 320 of the input pen 300 is in contact with the display unit 122, the CPU 152 creates image data that does not include the cursor mark display. The data is transmitted to the video RAM 164, and the display unit 122 displays the image data. That is, the display of the cursor mark is stopped (step 622). The detection unit 132 detects the position coordinates of the tip 320 (step 624), and the CPU 152 stores the data of the position coordinates in the RAM 156 (step 626). Drawing on the image data displayed on the display unit 122 is executed based on the captured coordinate data, a user operation on the input pen 300, and the like.

  The CPU 152 periodically determines whether or not the switch 310 has been turned off, that is, whether or not the detection unit 132 has detected that the tip 320 of the input pen 300 has moved away from the display unit 122 (step 628). If this determination result is negative, the detection unit 132 detects the position coordinates of the tip 320 again (step 624). Therefore, while the switch 310 is on, the detection unit 132 detects the position coordinate of the tip 320 that is in contact with the display unit 122, and the position coordinate data continues to be updated. As the input pen 300 moves, the display position of the cursor mark displayed on the display unit 122 also changes.

  If the determination result in step 628 is affirmative, that is, if the tip 320 of the input pen 300 has moved away from the display unit 122, the detection unit 132 detects the position of the input pen 300 at a position away from the touch panel display 110 again ( Step 612). Thereafter, the above steps are repeated.

<Action and effect>
According to the electronic blackboard according to the present embodiment, when the input pen 300 comes close to the touch panel display 110 and the position of the input pen 300 is detected, a cursor mark is displayed at a position coordinate corresponding to the position of the input pen 300 on the screen. Is displayed. The display mode of the cursor mark is determined according to the settings of the color, thickness, line type, etc. of the input pen 300. Therefore, the user can know where the input position is on the screen and how the input pen 300 is set before performing input such as drawing using the input pen 300. Input mistakes can be prevented.

  When the input pen 300 touches the touch panel display 110, the cursor mark disappears. Therefore, the display of the image is not hindered by the display of the cursor mark, and the user can smoothly perform the input operation.

  The technique for displaying the cursor mark according to the present embodiment can be applied to terminal devices other than the electronic blackboard. For example, the technology can be applied to any device having a display function and an input function, such as a mobile phone, a tablet terminal, and a multifunction peripheral.

  When the setting of the input pen is changed, the change may be notified not only by displaying the cursor mark but also by an alarm sound or the like. According to the electronic blackboard having such a configuration, the user notices that the setting of the input pen has been changed by an alarm sound, and can know what the change is based on the display mode of the cursor mark. . Therefore, a higher input error prevention effect can be expected as compared to the case where the input pen setting change is indicated only by the cursor mark display.

[Second Embodiment]
The electronic blackboard according to the present embodiment is different from the electronic blackboard according to the first embodiment in that a pop-up display indicating information related to the setting of the input pen can be further displayed in the vicinity of the cursor mark. Is the same. Therefore, the description of the same points will not be repeated.

<Operation>
3, 4, and 6, in step 618, the display unit 122 displays a cursor mark based on the information received in step 616 and information regarding the setting of the input pen 300. A pop-up display showing information related to the setting of the input pen 300 is displayed in the vicinity. In this pop-up display, information related to the input pen setting that is difficult to show with the cursor mark is displayed as in the drawing style of the input pen. For example, referring to FIG. 6, when the input pen 300 is set to a drawing style for drawing a rhombus, a pop-up display 552 is displayed next to the cursor mark 542 (FIG. 6A). The pop-up display 552 displays a word “diamond” and a rhombus icon so that the settings of the input pen, which are difficult to show with the cursor mark, can be seen at a glance. Similarly, when the drawing style of the input pen 300 is set to the right arrow, a pop-up display 554 is set beside the cursor mark 544 (FIG. 6B), and the drawing style of the input pen 300 is set to be underlined. If so, a pop-up display 556 (FIG. 6C) is displayed next to the cursor mark 546, respectively.

  If the settings of the input pen are changed not only in the drawing style but also in color, thickness, and line type, the cursor mark is displayed according to the setting as in the case of the first embodiment. It becomes an aspect. For example, when the input pen is set to “red, thick line, wavy line, rhombus”, the drawing style of the input pen 300 is a rhombus with red, thick line, and wavy cursor marks. A pop-up display that explains is displayed.

  In step 622, if the determination result in step 620 is affirmative, the display of the cursor mark is stopped and the pop-up display is also stopped. That is, the CPU 152 creates image data that does not display the cursor mark and the pop-up display, and transmits the image data to the video RAM 164. The display unit 122 displays the image data. Therefore, the cursor mark and pop-up display are not displayed.

<Action and effect>
According to the electronic blackboard according to the present embodiment, information related to the setting of the input pen 300 that is difficult to show with the cursor mark is popped up near the cursor mark as in the drawing style. Therefore, the user can know what setting the input pen 300 is set by referring to the cursor mark and the pop-up display, and can prevent an input error. When the input pen 300 contacts the touch panel display 110 and an input operation is started, the pop-up display disappears together with the cursor mark. Therefore, the pop-up display does not hinder the input operation, and the user can smoothly perform the input work.

  In the present embodiment, the pop-up display is displayed next to the cursor mark. However, the position of the pop-up display is not particularly limited. For example, a pop-up display may be performed in an area as close as possible to the cursor mark and not overlapping the image displayed on the screen. Alternatively, a pop-up display area may be provided in advance on the screen and displayed in the display area. If there are no items to be displayed in a pop-up, the pop-up is not displayed. If there are items to be displayed in a pop-up (items that are difficult to show with the cursor mark), the pop-up is displayed in the display area. You can easily know how much has changed.

  In the present embodiment, items that are difficult to show with the cursor mark are displayed in the pop-up display. However, the items displayed in the pop-up may be items having any content. For example, setting changes such as the color, thickness, and line type of the input pen may also be indicated by a pop-up display. According to such a display method, it is not necessary to display the setting change on the cursor mark, and the user need only pay attention to the pop-up display.

  When the pop-up display is touched with the input pen, the displayed screen may be changed to a setting change screen for changing the setting of the input pen. When the setting of the input pen is different from the setting desired by the user with reference to the pop-up display, the user can start the setting change operation by touching the pop-up display with the input pen.

  In the present embodiment, the pop-up display is a balloon surrounded by a solid line, but the pop-up display is not limited to such a display form. For example, the frame line may blink or be displayed in a conspicuous color such as red. By setting it as such a display form, it can make it easy for a user to notice the change of a setting. Further, the pop-up may be displayed translucently. By doing so, even if the pop-up display overlaps with the displayed image, the display image does not become difficult to see.

[Third Embodiment]
In the present embodiment, the input pen is provided with a switch for switching whether or not information related to the setting of the input pen is indicated by a cursor mark display. Except for this point, the configuration of the image display system according to the present embodiment is the same as the configuration of the image display system according to the first embodiment.

<Software configuration>
With reference to FIG. 7, a control structure of a computer program 700 executed in response to activation of pen software for executing drawing will be described. The computer program 700 has the same configuration as the computer program 600 (FIG. 4) according to the first embodiment, except that it includes steps 712-718 described later.

  In response to the switch 350 of the input pen 300 being switched, the computer program 700 determines whether or not the switch 350 has been switched from OFF to ON, and the determination result in Step 712 is positive In response to step 714 displaying a cursor mark indicating information regarding the setting of the input pen acquired in step 616, and whether or not the switch 350 is further switched, whether or not the switch 350 is switched from on to off. In response to the determination result of step 716 and step 716 being affirmative, the cursor mark is displayed in the original mode, that is, in the mode in which the setting of the input pen 300 is not changed. Step 718 of displaying.

  If the determination result at step 712 is negative, control proceeds to step 716. If the determination result of step 716 is negative, the control proceeds to step 620. When the process of step 718 ends, control proceeds to step 620 (FIG. 8).

<Operation>
Referring to FIGS. 3 and 7-9, detection unit 132 detects the setting state of switch 350 together with the position of input pen 300 (YES in step 614). The CPU 152 determines whether or not the setting state of the switch 350 is on (step 712). In response to the determination result in step 712 being affirmative, that is, in response to the switch 350 being turned on, the CPU 152 reads information related to the setting of the input pen 300 from the RAM 156 (step 616). The image data for displaying the cursor mark 572 displayed in bold is transmitted to the video RAM 164. The image data is displayed on the display unit 122 (FIG. 9A).

  When the detection unit 132 detects that the switch 350 has been switched from on to off (YES in step 716), in step 718, the CPU 152 displays a cursor mark 574 that does not include information regarding the settings of the input pen 300. Image data is created and transmitted to the video RAM 164. The display control unit 162 displays the image data on the display unit 122 (FIG. 9B). Thus, the mode of the cursor mark changes according to the switching of the switch 350.

<Action and effect>
The mode of the cursor mark is changed by switching the switch 350. Therefore, the user can freely switch the mode of the cursor mark by operating the switch 350, and can perform the input work more smoothly than when the input pen 300 does not include the switch 350.

  As shown in FIG. 9, the switch 350 is provided on the side surface of the input pen 300. Therefore, the user can switch on / off of the switch 350 with a simple operation, and the mode of the cursor mark can be switched freely.

  The switch 350 according to the present embodiment is provided on the side surface of the input pen 300 and is manually switched on / off. However, the switch 350 is not limited to such a configuration. For example, if the switch 350 is configured to be switched on / off according to vibration, the user can switch the switch 350 by shaking the input pen 300.

  In the present embodiment, the mode of the cursor mark is switched by switching the switch 350, but the method of switching the mode of the cursor mark is not limited to this. For example, a clear key for returning the cursor mark to the original form is provided on the screen of the electronic blackboard 100 in advance, and the clear key is pressed when the cursor mark of the form indicating the setting of the input pen 300 is displayed. By doing so, it is good also as a structure which a cursor mark returns to the original aspect.

  (1) An electronic blackboard 100 according to an aspect of the present invention is an electronic blackboard 100 that can be operated by an input pen 300, and the display device having a display surface and the input pen 300 indicate in a predetermined area on the display surface. An input pen position coordinate detection means for detecting position coordinates, a storage means for storing information related to the setting of the input pen, and a memory in response to detection of the position coordinates by the input pen position coordinate detection means A first display means for reading out information related to the setting of the input pen 300 from the means and displaying a cursor mark in a different manner depending on the setting of the input pen 300 at a position corresponding to the position coordinates on the display surface. .

  When the position coordinate pointed to by the input pen 300 is detected within the predetermined area, the first display means reads information relating to the setting of the input pen 300 and displays a cursor mark at a position corresponding to the position coordinate. This cursor mark changes its mode according to the setting of the input pen 300 (FIG. 5). Therefore, the user can know how the input pen 300 is set by referring to the cursor mark before performing the input operation. Furthermore, since the position coordinates where the cursor mark is displayed correspond to the detected position of the input pen, the user can know exactly where the input position is on the display surface. In this way, the display of the cursor mark can prevent the user from making an input mistake.

  (2) Preferably, the electronic blackboard 100 further includes a display stop unit for stopping the display of the cursor mark by the first display unit in response to the input pen 300 touching the display surface.

  When the input pen 300 touches the display surface, the display of the cursor mark disappears by the display stop means. Therefore, when the input operation is performed by bringing the input pen 300 into contact with the display surface, the cursor mark is not displayed, and the image displayed on the display surface, the input locus, and the like are not hindered by the cursor mark. The user can know the setting and input position of the input pen 300 by referring to the cursor mark before input, and can smoothly perform input work without being hindered by the display of the cursor mark after the input is started. it can.

  (3) Preferably, the first display means displays a pop-up display indicating the setting of the input pen 300 in the vicinity of the cursor mark in response to detection of the position coordinate by the input pen position coordinate detection means. Display with

  When the position of the input pen 300 is detected, a pop-up display indicating the setting of the input pen 300 is displayed together with a cursor mark (FIG. 6). The user can know the setting of the input pen 300 by referring to the pop-up display as well as the cursor mark. The user can also display settings that cannot be expressed only with the cursor mark in a pop-up display. Since this pop-up display is displayed in the vicinity of the cursor mark, the user can easily notice the pop-up display without performing any special operation.

  (4) More preferably, the information related to the setting of the input pen 300 includes a display attribute of a trajectory when displaying the input trajectory by the input pen 300, and the first display means sets the display attribute of the trajectory in a pop-up display. Display the indicated character, symbol, figure, or a combination thereof.

  In the pop-up display, characters, symbols, graphics, or a combination of them indicating the display attribute of the input locus by the input pen 300 is displayed. Therefore, by referring to the pop-up display, the user can know before the input how the input locus is displayed when an input operation is performed using the input pen 300.

  (5) More preferably, the display attribute is the color, thickness, or line type of the trajectory or a combination thereof.

  The information related to the setting of the input pen 300 includes the color, thickness, or line type of the input locus by the input pen 300 or a combination thereof. Therefore, referring to the cursor mark or the pop-up display, the user can know the color, thickness, or line type of the input locus before inputting.

  (6) More preferably, the first display means displays a pop-up display so as not to overlap an image displayed on the display device.

  The pop-up display is displayed so as not to overlap the image displayed on the display device. Therefore, the user can refer to the pop-up display together with the image, and it becomes easier to image the input image.

  (7) More preferably, the first display means displays the pop-up display in a translucent manner.

  Since the pop-up display is displayed in a translucent manner, even if the pop-up display and the displayed image overlap, the display of the image displayed on the display device is not hindered. Therefore, the user can confirm the content of the image together with the content of the pop-up display.

  (8) Preferably, the information related to the setting of the input pen 300 includes a display attribute of a locus when the input locus by the input pen 300 is displayed, and the first display unit is set to the input locus of the input pen 300. The cursor mark is displayed according to the display attribute.

  The cursor mark is displayed in a display mode according to the display attribute set in the input locus. By referring to the cursor mark, the user can know what input locus the input pen is set to be.

  (9) Preferably, in response to the detection of the position coordinate by the input pen position coordinate detection means, the electronic blackboard 100 has a cursor mark in a predetermined manner at a position corresponding to the position coordinate on the display surface. And a display control means for switching between the first display means and the second display means in response to a user operation.

  In response to a user operation, the mode of the cursor mark is switched to a mode that changes according to the setting of the input pen 300 or a predetermined mode (FIG. 9). The user can switch the mode of the cursor mark depending on whether or not it is necessary to know the setting of the input pen 300. By this switching, the user can switch the mode of the cursor mark according to the situation, and can perform an input operation smoothly.

  The embodiment disclosed herein is merely an example, and the present invention is not limited to the above-described embodiment. The scope of the present invention is indicated by each claim of the claims after taking into account the description of the detailed description of the invention, and all modifications within the meaning and scope equivalent to the wording described therein are included. Including.

100 Electronic Blackboard 110 Touch Panel Display 152 CPU
300 Input pen 310, 350 Switch 320 Tip 500, 542-546, 572-574 Cursor mark 552-556 Pop-up display

Claims (4)

An electronic blackboard that can be operated with an input pen,
A display device having a display surface;
Input pen position coordinate detecting means for detecting position coordinates indicated by the input pen in a predetermined area on the display surface;
Storage means for storing information relating to settings of the input pen;
In response to the detection of the position coordinates by the input pen position coordinate detection means, information related to the setting of the input pen is read from the storage means, and the position corresponding to the position coordinates on the display surface is look including a first display means for displaying a cursor mark in a different manner depending on the setting of the input pen,
In response to the detection of the position coordinates by the input pen position coordinate detection means, the first display means displays a pop-up display indicating the setting of the input pen in the vicinity of the cursor mark together with the cursor mark. Electronic blackboard to display .   2. The electronic blackboard according to claim 1, further comprising display stop means for stopping display of the cursor mark by the first display means in response to the input pen touching the display surface. The information on the setting of the input pen includes a display attribute of a trajectory when displaying an input trajectory by the input pen,
The electronic blackboard according to claim 1 or 2 , wherein the first display means displays the cursor mark according to a display attribute set in an input locus of the input pen. In response to the detection of the position coordinate by the input pen position coordinate detection means, a second for displaying a cursor mark in a predetermined manner at a position corresponding to the position coordinate on the display surface. Display means,
The electronic blackboard according to any one of claims 1 to 3 , further comprising display control means for switching between the first display means and the second display means in response to a user operation.

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