JPS6253899A - Electronic blackboard - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [4 Already Required] A display board consisting of a transparent board for support and a transparent film or membrane is provided, and an automatic drawing machine installed on the back side outputs information already stored. By automatically drawing on the back side of the display board and handwriting from the front side, the handwritten information from the front side and the information on the back side drawn by the automatic drawing machine can be seen as a composite.

[Industrial application field]

The present invention is an information display board called an electronic blackboard, in other words, information that has already been registered can be output to the display surface for display or handwriting, and the information on the display surface can be stored in a memory or printed on a printer. This invention relates to a display device that can be output as a hard copy.

[Conventional technology]

Conventionally, there have been known devices such as X-Y blocks and printers that output and record information that has already been registered and make a hard copy. Just do it. On the other hand, there have also appeared devices that read handwritten information with an image sensor and register it in memory, or devices called data tablets that register handwritten information in memory by detecting the X-Y position of the information.

[Problem that the invention seeks to solve]

However, these devices can only output or input graphic information. Therefore, it is not possible to use information that has been registered in advance in the memory and to display arbitrary handwritten information on top of it. During lectures, conferences, etc. at schools, it is often easier to understand by using graphic information that is used repeatedly and adding arbitrary information by hand to explain the information. However, with conventional electronic blackboards, it is not possible to use them in this way, and the only thing that can be done is to take a hard copy and write by hand on the hard copy, which is inconvenient.

The technical problem of the present invention is to solve such problems with conventional electronic blackboards, to freely extract and draw information stored in memory, to be able to write on it, and to be able to reproduce the synthesized information in this way. The purpose is to be able to register it in memory and make multiple hard copies.

[Means for solving problems]

FIG. 1 is a perspective view from the rear direction illustrating the basic principle of the electronic whiteboard according to the present invention. 1 and 2 are transparent films, each made of a material that allows recording with a felt-tip pen, an XY plotter, or the like. Reference numeral 3 denotes a supporting board sandwiched between both transparent films 1 and 2, which is made of a transparent material. A transparent display board B is constituted by the transparent board having a supporting function and one or more transparent films or membranes. An automatic drawing machine such as an X-Y block 4 is disposed on the back side of the transparent film 2 on the back side, so that it is possible to automatically draw on the transparent film 2 on the back side from the back side.

[Effect]

Since the transparent films 1.2 on both the front and back sides are supported by the support board 3 between them, characters and figures can be freely written on the front transparent film 1 by hand with a felt-tip pen or the like.

In addition, the transparent film 2 on the back side has an X-Y
It is automatically drawn by the plotter 4. Therefore, in advance
With the Y plotter, output the pre-registered information onto the transparent film 2 on the back side and automatically draw it so that it can be seen immediately, then immediately overlay it on top of it and add it by hand to the transparent film l on the front side. As a result, when viewed from the surface, automatically drawn information and handwritten information appear to be combined.

〔Example〕

Next, how the electronic whiteboard according to the present invention is actually implemented will be explained using examples. FIG. 2 is a perspective view of an embodiment of the present invention seen from the back side, and FIG. 3 is a perspective view of the embodiment seen from the front side. Horizontal guide rails 8.9 are provided above and below the back side of the transparent board 3 made of glass or plastic, and a horizontal guide rail 8.9 is provided between the X-direction movable bodies 10 and 11 that travel guided by the guide rails 8.9. , a bar-shaped X-direction main body 12 is passed. A Y-direction moving body 13 that is guided by this X-direction main body 12 and slides in the Y-direction is provided.

Therefore, when the pre-registered information is read from the memory, figures etc. are automatically drawn on the transparent film 2 on the back side with the pen 14 depending on the amount of movement of the X-direction moving body 10.11 and the Y-direction moving body 13. .

A transparent film 1 is stacked on the front side of the transparent board 3, and arbitrary information can be recorded by hand on the transparent film 1 from the front side. In addition, X-Y plotter 4 and film 1.2
If the display surface is difficult to see because the back side is transparent because it is transparent, it is advisable to place an opaque back panel 5 on the back of the X-Y Pro.

In order to accurately feed both transparent films 1 and 2,
Sprocket holes 15 are opened on both sides of both transparent films 1.2, and a sprocket pin P that fits into the sprocket throat hole 15 is attached to the outer periphery of the drum 6.7. Therefore, the two transparent films 6 and 7 can be moved in precise synchronization without shifting. Further, the drum 6.7 and the guide rail 8.9 of the X/Y Pro Ivy are built into the frame 16 as shown in Fig. 3 so that they cannot be seen from the front side.

When the X-Y plotter 4 outputs pre-registered information and automatically draws information on the transparent film 2 on the back side, the automatically drawn information such as the figure 17 is displayed, as shown in FIG. It's visible through the sky. Therefore, if you write by hand using a felt toy 18 or the like on the transparent film 1 on the front side after drawing by the X-Y plotter 4 is finished, the handwritten information 19 and the automatic drawing information 17 by the X-Y Pro Ivy will appear to overlap. By repeatedly outputting and drawing the information registered in memory, and then writing freely on top of it,
It can be effectively used in classroom lectures and meetings.

In this way, information 17 by automatic drawing and handwritten information 1
The information obtained by combining 9 can be recorded and saved in memory, or can be output as hard copies on a printer or the like. For this purpose, the transparent film 1 on one of the drums 6 is
．． An image sensor 20 having a length that can cover the entire width of the transparent films 1 and 2 is provided on the transparent films 1 and 2, and the information drawn on both transparent films 1.2 is optically transmitted in synchronization with the movement of the transparent films 1.2. It can be read visually, converted into an electrical signal, and stored in memory. Then read out this stored information,
You can print out multiple copies using a printer.

FIG. 4 is a diagram showing another embodiment of the present invention, in which (a) is a perspective view seen from the front side, and (b) is a sectional view.

This embodiment is also the same as the previous embodiment in that an automatic drawing machine such as an X-Y plotter 4 is used, but a so-called data tablet 26 is used as the display board B instead of the image sensor 20. There is.

In this example as well, with an X-Y plotter etc. installed on the back side,
The information read from memory is drawn on the back side. The data tablet 26 has a structure in which a transparent sheet 23 is sandwiched between two transparent boards 21 and 22. This transparent sheet 23 is formed with, for example, lines of a transparent resistive film in the X-Y direction, and when handwriting is performed with a detection pen 24 on the transparent board 22 on the surface, the coordinates of the detection pen 24 are detected in real time. , stored in memory. This is an application of the functions of a known data tablet, and
VA intersections are sequentially detected by the detection pen 24 and the coordinate information is stored in memory, and various methods have been implemented.

In this way, the transparent boards 21 and 22 and the transparent resistive film 2
The information automatically drawn by the X-Y plotter 4 from the back side of 3 is visible from the front side as shown in 17, so by handwriting it with the detection pen 24 on the transparent board 22 on the front side, it is possible to see the information from the front side. It can be recognized as a display surface. Also, since the coordinate signal of the detection pen 24 is stored and saved in the memory,
If necessary, the memory can be read out and output using a printer or the like.

By using a detection pen as the pen 14 of the X-Y plotter 4, the coordinate information of the rain detection pen is stored in the memory,
If you read it out and print it, you can make many hard copies with the information from both sides overwritten. Note that 25 is a cover that hides unnecessary parts from view. It is also possible to use only one transparent board and form the transparent resistive film directly on the transparent board.

〔Effect of the invention〕

As described above, according to the present invention, an automatic drawing machine such as an X/Y plotter is used to output and draw information already registered in memory from the back side, and handwritten drawings are made from the front side. It is designed to be visually checked over the visible information on the back side. Therefore, by automatically drawing the information stored in memory and immediately adding handwritten information, the registered information and handwritten information can be combined and used effectively, and can be used in lectures, meetings, etc. This is extremely convenient when doing so.

[Brief explanation of the drawing]

FIG. 1 is a perspective view illustrating the basic principle of the electronic whiteboard according to the present invention, FIG. 2 is a perspective view showing an embodiment of the electronic whiteboard, and FIG.
The figure is a perspective view of the electronic blackboard of the same example as seen from the front side.
Figures (a) and (b) are a perspective view and a sectional view of another embodiment. In the figure, B is a display board, 1.2 is a transparent film,
3 is a transparent board, 4 is an automatic drawing machine (X/Y plotter),
Reference numeral 18 indicates a handwriting pen, 24 indicates a detection pen, and 26 indicates a data tablet. Patent Applicant: Fujitsu Limited Agent, Patent Attorney: Aoyagi, Example 2

Claims (2)

[Claims] (1) On the back side of a transparent display board (B) on which handwriting can be written at least on the front side, an automatic drawing machine (4) that automatically draws on the display board side from the back side is installed. This is an electronic blackboard that outputs the information stored in the board and draws it automatically, and then writes by hand from the front side, so that both types of information can be seen overlapping each other from the front side. (2) The display board (B) is comprised of one or more transparent boards, or one or more transparent boards and one or more transparent films or membranes. The electronic blackboard described in paragraph (1).