JP2017010086A - Electronic blackboard, data processing method and program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electronic blackboard that has a region where a drawing can be made with an input pen etc., and a region where function selection buttons etc., are arranged and a continuous drawing cannot be made and that enables a drawing to be continuously made with the input pen etc., even in the region where no continuous drawing is enabled.SOLUTION: The present invention relates to an electronic blackboard 1 comprising: a display device including position detecting means 11 of detecting a coordinate position of an input pen; coordinate comparing means 21 of comparing coordinate data detected by the position detecting means 11 with coordinate data on a region border and calculating a distance between the coordinate data; and a control unit 20 including switching means 22 of determining switching in region function based upon a result of the coordinate comparing means 21, coordinates of the input pen being compared with the coordinates on the region border so as to perform switching in region function based upon a distance of inter-coordinate data.SELECTED DRAWING: Figure 2

Description

  The present invention relates to an electronic blackboard, a data processing method, and a program.

  2. Description of the Related Art Conventionally, an electronic blackboard has an information display area for displaying a color palette, a menu for selecting line types, and various information displays on a display device. A writer can select a color and line type by selecting a selection menu in the information display area, and a technique for selecting and drawing a favorite item from the selection menu is already known.

  In Patent Document 1, in order to provide an electronic blackboard system that allows a user to operate intuitively and easily even when a plurality of users use the document simultaneously, the digitizer function is changed, and the document is operated and edited. A possible configuration is disclosed.

  Next, in Patent Document 2, in order to provide an electronic blackboard system that has the same operability as a blackboard placed in a school or the like and can be used by anyone in the same way as a blackboard, it is similar to drawing on a blackboard. A configuration is disclosed in which functions such as coloring and erasing lines, characters, figures, etc. drawn with a pen or the like can be selected from a predetermined dialog box.

  Conventional blackboards are known to have a display screen and a hardware button that controls the function of the digitizer side by side with the display screen, but it is costly to have a hardware device etc. side by side with the display screen. There was a problem that it would take.

  In order to solve the above-described problem, in recent years, there are some that display a plurality of icons that can realize a function equivalent to a conventional hardware button on a display surface of a display screen. However, the drawing area and the area for displaying a plurality of icons are completely separated from each other, and there is a problem that when the user draws on the electronic blackboard, the user can draw only within the predetermined drawing area. When the amount of drawing on the blackboard becomes larger than expected, there is a problem that the drawn object must be deleted in order to make space.

  In the prior art, the functions of the drawable area and the non-drawable area of the electronic blackboard are completely separated, and the above problem is not solved.

  The present invention has been made in view of the above problems, and the object of the present invention is an electronic blackboard device having an area that can be drawn with an input pen and the like, and an area where function buttons and the like cannot be drawn. This is to enable continuous drawing with an input pen or the like even in an area where drawing is impossible.

  In order to achieve the object, the present invention has the following features.

  An electronic blackboard according to the present invention is an electronic blackboard that can be operated with an input pen, a drawing area that can be drawn with the input pen, a non-drawable area that cannot be drawn with the input pen, a drawing area, and a drawing A display device having a display surface composed of a boundary line of an unusable region, and a control device that performs predetermined control, and the display device detects a first position coordinate indicated by the input pen on the display surface. The control device includes a detecting unit, and the control device continuously compares the first position coordinate detected by the position detecting unit with the boundary line, and the first position coordinate in the drawing area. The position detection means detects that the distance between the first position coordinates and the boundary line is a user-set threshold value, and the coordinate comparison means compares the first position coordinates with the boundary line. When it is determined that it is within the range, the non-drawable area can be drawn And means, and characterized in that.

  According to the present invention, when a character or a line is drawn in a drawing area with an input pen or the like, a line or a character can be drawn in a non-drawable area such as a function button area.

It is a figure which shows the external appearance of the electronic blackboard which concerns on embodiment of this invention. It is a figure which shows the function block of the electronic blackboard of FIG. It is a figure which shows the hardware constitutions of the electronic blackboard of FIG. It is a flowchart which shows the procedure of the display area function switching method of this embodiment. It is a figure which shows the example of a coordinate in the display surface of the electronic blackboard of FIG. It is a figure which shows user operation in implementation of this invention.

  Hereinafter, an embodiment of an electronic blackboard to which the present invention is applied will be described.

  First, a basic functional configuration of the electronic blackboard in the present embodiment will be described. FIG. 1 shows the appearance of the electronic blackboard in the present embodiment.

  The electronic blackboard is composed of a liquid crystal display type display device used in conventional PCs and televisions having a display surface, and an input pen as an input device. Used.

  The display surface includes a drawing area 5 in which continuous drawing with the input pen is possible, a drawing impossible area (1-4) in which continuous drawing with the input pen is impossible, and a drawing area 5 and a drawing impossible area (1- 4) has a boundary line. In addition, in the non-drawable area (1 to 4), for example, a function button area in which a plurality of function buttons for changing the line type and line color of the input pen are arranged, an information display area for displaying information such as date, etc. There is. The boundary line here cannot be recognized visually by the user side, but may be displayed so that the boundary line can be visually recognized on the display surface.

  FIG. 2 is a functional block diagram of the electronic blackboard of FIG.

  In FIG. 2, the detection device 10 of the electronic blackboard 1 of the present invention is composed of position detection means 11, and the control device 20 is composed of coordinate comparison means 21 and switching means 22.

  The position detection unit 11 detects position coordinates indicated by the input pen on the display surface.

  The coordinate comparison means 21 compares the position coordinates detected by the position detection means 11 with the boundary line between the drawing area and the drawing impossible area, and the position coordinates detected by the position detection means 11, the drawing area, and the drawing impossible area. The boundary lines are compared, and the distance is calculated.

  The switching unit 22 receives the comparison result of the distance calculated by the coordinate comparison unit 21 and the threshold value set by the user, determines whether or not the function needs to be switched from rendering impossible to rendering, and switching is necessary. If there is, the function is switched from rendering impossible to rendering possible.

  FIG. 3 is an example of a hardware configuration diagram of the electronic blackboard of FIG. Hereinafter, an embodiment of the present invention will be described with reference to the hardware configuration diagram of FIG. Note that the hardware configuration of the electronic blackboard of the present embodiment is not limited to the hardware configuration diagram of FIG.

  The control device 20 executes a predetermined program, thereby realizing a CPU 302 for realizing overall control of the electronic blackboard 1 and a read-only memory for storing a program read by the CPU 302 when the electronic blackboard 1 is powered on. A memory (Read Only Memory (ROM)) 305, a random access memory (RAM) 303 used by the CPU 302 as a working memory, and a record when the electronic blackboard 1 is powered off The controller chip 301 that determines the processing contents based on information (coordinate data) obtained from the HDD 306 and the touch panel display 100 (detection device 10 described later), and the touch panel display 100 according to the control of the CPU 302 Image table And Table graphics chip 307 for controlling these were connected to each other, and a bus 304 that enables communication of data and control signals between each other.

The detection device 10 includes a detection unit 201 and a microcomputer 202 that controls the detection unit 201. The microcomputer 202 outputs the information (coordinate data) detected by the detection unit 201 to the outside (controller chip 301). The detection unit 201 detects the position of the input pen. That is, it is detected whether the tip of the input pen is in contact with the touch panel display 100. In addition, it has a function of detecting input to the touch panel display 100 by the input pen at regular intervals.
The coordinate detection method of the input pen when the user draws characters and illustrations in the drawing area using the input pen is a conventional electromagnetic induction type, optical type, digital pressure type, laser detection type, or ultrasonic wave. A conventional detection method such as an equation is used.

  For example, when changing the content of processing performed on the position indicated by the input pen, by pressing a function button for changing the target function from the right and lower function button areas of the display screen in FIG. The function of the input pen can be changed.

  For example, when the user changes the function of the input pen from the pen tool to the erase tool, the user presses the function button with the erase icon illustrated. The display device processes the subsequent operation of the input pen as an operation of the erasing tool.

  The display device 400 includes a display unit 401 having a liquid crystal display panel capable of full color display, or a display panel such as a plasma display or an organic EL display. The display unit 401 receives from the graphic chip 307 and reads at a predetermined timing. Display is performed based on a signal for displaying the output image data or the like.

  Each functional block of the electronic blackboard 1 can be configured by the CPU 302 executing a predetermined program read from the HDD 306 or the ROM 305 and loaded into the RAM 303. Moreover, you may comprise by the chip | tip etc. for implementing this invention.

FIG. 4 is a flowchart showing the procedure of the display area function switching method of the present embodiment. FIG. 5 is a diagram illustrating an example of coordinates on the display surface.
The following description will be made according to the flowchart of FIG. 4, and FIG. 5 will be referred to if necessary.

As an embodiment of the present invention, a case where a drawing area is continuously drawn using an input pen will be described.
In step 1, the position detecting means detects the position indicated by the input pen on the touch panel display of the electronic blackboard. The position detection is controlled to be performed at regular intervals by a timer of a detection unit (not shown). According to the coordinate example of FIG. 5, the coordinate (1720,500) is detected.

  In step 2, the coordinate comparison means reads boundary line coordinate data. According to the coordinate example of FIG. 5, the data of the boundary line coordinates are (1820, 100) to (1820) at the position of X = 1820 in the function selection area from (1820, 100) to (1920, 1080). , 1080) is read as the coordinate data of the boundary line.

  In step 3, the coordinates detected in step 1 are compared with the coordinate data read in step 2, and the distance is calculated. The coordinate data read out in step 2 is from (1820,100) to (1820,1080) where X = 1820, but is the shortest from the coordinates (1720,500) detected in step 1. In order to determine the position coordinates, (1820,500) is used as the coordinates used for the distance calculation.

  That is, the distance between (1720,500) and (1820,500) is obtained. Of the X and Y directions, the difference occurs only in the X direction, and the difference is calculated as 100 dots.

In step 4, the switching unit reads a user-set threshold value for the distance of 100 dots calculated in step 3, and determines whether it is necessary to switch the function from rendering impossible to rendering.
Here, in the present embodiment, the threshold value set by the user is defined as “within 100 dots”. In other words, if the distance is within 100 dots, it is determined that the function needs to be switched from rendering impossible to rendering possible, and if the distance is greater than 100 dots, it is determined that the function switching from rendering impossible to rendering is necessary. Therefore, the function is not switched from the drawing disabled to the drawing enabled, and the process ends.

Since the calculated distance is 100 dots, the user-set threshold “within 100 dots” is satisfied, and it is determined that it is necessary to switch the function from rendering impossible to rendering.
In step 5, the function of the non-drawable area from the coordinate range (1820, 100) to (1920, 1080) in FIG. 5 is invalidated. For example, in the case of an icon display function button, the icon function is disabled.

In step 6, the result of step 5 is received, and continuous drawing with the input pen is enabled in the non-drawable region from the coordinate range (1820, 100) to (1920, 1080) in FIG.
The switching means performs so far.
FIG. 6 is a diagram illustrating a user operation after switching the function from rendering impossible to rendering. Through a series of procedures, it becomes possible to perform continuous drawing on the non-drawable area with the input pen.

By implementing the present invention, it is possible to perform continuous drawing similar to the drawing area even in the non-drawable area.
In the flow of the present embodiment, the non-renderable area is limited from (1820, 100) to (1920, 1080). However, when the non-renderable area extends over a wide area, the non-rendering area cannot be drawn. It is also possible to switch the function so that the area can be drawn. In FIG. 4, the range of the non-drawable area covers only the function button area. However, the function display area is not limited to the function button area. For example, the function of the information display area can be switched to the drawing area. Is possible.

  In addition, when the function is switched to drawable non-drawable areas, the function is not switched to drawable all non-drawable areas, for example, drawing related to the drawing direction in which the drawing areas are drawn continuously. It is also possible to control to switch the function so that only the impossible area can be drawn. When there are multiple users who operate the electronic blackboard, etc., there is also a usage pattern where one user continuously draws the drawing area and the other user operates the function button area opposite to the drawing direction. It becomes possible.

DESCRIPTION OF SYMBOLS 1 Information display area 2 Function button area 3 Function button area 4 Function button area 5 Drawing area 11 Position detection means 21 Coordinate comparison means 22 Switching means

JP 2008-118301 A JP 2002-278703 A

Claims (7)

An electronic blackboard that can be operated with an input pen,
A display device having a display surface composed of a drawing area that can be drawn with the input pen, a non-drawable area that cannot be drawn with the input pen, and a boundary line between the drawing area and the non-drawable area; A control device that performs predetermined control,
The display device
Position detecting means for detecting a first position coordinate indicated by the input pen on the display surface;
The controller is
Coordinate comparison means for comparing the first position coordinates detected by the position detection means with the boundary line;
The position detection means detects that the first position coordinates are continuously changing in the drawing area, and the coordinate comparison means compares the first position coordinates with the boundary line. Switching means for enabling rendering of the non-renderable area when it is determined that a distance between the first position coordinates and the boundary line is within a threshold set by a user.
An electronic blackboard characterized by that. The position detection means detects the first position coordinates at regular intervals, and provides a detection result to the coordinate comparison means;
The electronic blackboard according to claim 1. The distance between the first position coordinates and the boundary line is a length of a line determined so that the line connecting the first position coordinates and the boundary line is the shortest.
The electronic blackboard according to claim 1, wherein the electronic blackboard is characterized. The switching unit disables the function of the non-drawable area when it is determined that the distance between the first position coordinate calculated by the coordinate comparison unit and the boundary line is equal to or less than a user-set threshold value. ,
The electronic blackboard according to claim 1, wherein: The boundary line is visibly written on the display surface,
The electronic blackboard according to claim 1, wherein: Detecting a first position coordinate indicated by the input pen on the display surface of the electronic blackboard;
Comparing the first position coordinates with a boundary line between the drawing area and the non-drawable area;
In the drawing area, it is detected that the first position coordinates are continuously changed, the first position coordinates are compared with the boundary line, and the first position coordinates and the boundary line are compared. When it is determined that the distance is within a threshold set by the user, the step of rendering the non-renderable area; and
A data processing method for an electronic blackboard comprising: A program for causing a computer including a processor to execute a data processing method,
The program is stored in the processor.
Detecting a first position coordinate indicated by the input pen on the display surface of the electronic blackboard;
Comparing the first position coordinates with a boundary line between the drawing area and the non-drawable area;
In the drawing area, it is detected that the first position coordinates are continuously changed, the first position coordinates are compared with the boundary line, and the first position coordinates and the boundary line are compared. When it is determined that the distance is within a threshold set by the user, the step of rendering the non-renderable area; and
A program for running

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