JP2009023325A - Electronic canvas device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an electronic canvas device which permits particularly the plotting of not only a presentation but also a full-color picture or the like in regard to an apparatus made by extending an electronic blackboard used in a meeting or the like. <P>SOLUTION: The canvas device comprises: a writing tool capable of color mixing; a writing sheet 2 permitting the writing of mixed colors by using the writing tool; a main body which holds the writing sheet; a leg part 8 which supports the main body; a reading device 3 which reads a written image on a writing surface; a storage means which stores a read picture; and an eraser which erases the written image. Further, in order to facilitate the plotting, such a structure that the writing surface can be inclined back and forth, and left and right is provided. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

The present invention relates to an apparatus obtained by expanding an electronic blackboard apparatus used for a conference or the like.
In particular, the present invention relates to a canvas apparatus capable of drawing not only a presentation but also a painting using a normal painting material.

The conventional electronic blackboard device writes characters and figures with a marker on a white writing sheet, reads the written surface as image information with an optical sensor, reduces the read image information, prints it on paper, Or it has the function to record.

The electronic blackboard device is originally written by a user with a marker and erased by an eraser. The emphasis is on ease of writing and erasure, and a glossy film is used as the writing sheet. It has been.

In addition, black, red, blue, and green markers are used for writing, and these markers cannot be overlaid.
For example, when writing with a red marker and writing with a green marker, the lower red writing is scraped off and only the green writing remains on the writing sheet.

JP-A-2002-249691

The conventional electronic blackboard device is a device dedicated to presentations at conferences. It can be drawn with various markers, can be easily erased with various erasers, and can be easily erased for a long time. It is aimed.
Also, since the main purpose is black and white printing, black and white binarization is performed.
For this reason, for example, drawing of a full-color watercolor painting and monochrome painting cannot be used for drawing a picture using gradation.
In addition, even with an electronic blackboard that can be printed in color, color reproducibility is not particularly required for points that cannot be mixed with markers or for writing minutes for meetings. Can not.

Patent Document 1 discloses a technique for writing on an electronic blackboard screen by inkjet.
However, this is a technique for printing an image or the like created on a personal computer on a writing screen, for example, and it is not considered that the user writes with an art material.
In the case of printing, the inks of the respective colors are arranged apart from each other without being overlapped, and the color is expressed by the size of the dot of each color.
On the other hand, when writing directly on the art material, a mixed color is expressed by overlapping each color.
Therefore, the color expression method is different between printing and writing, and it is technically different.

The present invention was made in order to expand the application of a conventional electronic blackboard device for limited use, and enables creation of paintings and the like on a large screen and reading and storing the created paintings. The present invention provides an electronic canvas device that can be used.

In order to solve the above problems, the present invention provides a writing instrument capable of mixing colors, a writing sheet capable of writing in a mixed color by the writing instrument, a main body holding the writing sheet, and writing on the writing surface. The image processing apparatus includes a reading device that reads an image, a storage unit that records the read image, and an eraser that erases a written image.

Although the conventional electronic blackboard device can be used as a large-scale scanner to some extent, the main purpose is to record the minutes of meetings, and color reproducibility and gradation expression of written images are not considered. .
Currently, for example, there are only A3 scanners that read full-color originals such as photographs, even if they are large.
On the other hand, according to the present invention, it can be used as a large-sized scanner capable of reading a full-color image of photographic quality.

According to the present invention, a poster or a picture can be created on a large screen, and the created work can be recorded as full-color image data.

Hereinafter, the best mode for carrying out the present invention will be described in detail with reference to the drawings.

An embodiment of the present invention will be described below with reference to the drawings.
FIG. 1 is a front view showing an embodiment of the present invention.
1 is an electronic canvas device main body, 2 is a writing sheet for drawing on the surface of the main body 1 with a writing tool, 3 is a reading device for reading a writing image of the writing sheet, 4 is an operation panel provided on the front surface of the reading device, 5 Is a handle for manually operating the reading device 3, 6 is an operation switch for manually performing a reading operation, 7 is a switch for tilting the main body 1, and 8 is a leg for supporting the main body 1. .

The operation panel 4 includes a switch for driving an unillustrated motor to transfer the writing sheet 2, a switch for performing a reading operation, a switch for performing printing, a switch for transferring read data to an external storage device (not illustrated), and the like. Is provided.
A terminal for connecting a printer (not shown) and an external memory is provided on the lower surface of the main body.

The writing sheet 2 is a resinous sheet that can be drawn with a pencil, charcoal, or watercolor paint, and can be easily erased. For example, a sheet described in JP-A-2005-28602 is used. .
In this writing sheet, for example, a mat material made of silicone particles and a release material made of an acrylic polymer are fixed on a base material sheet such as polypropylene.

This writing sheet 2 is endlessly connected in an annular shape.
The left and right ends are held by the main body 1 with tension by rollers (not shown), and one of the rollers is driven to rotate by a motor.
Therefore, the writing surface can use two surfaces, the first surface exposed on the surface of the main body and the second surface located on the back surface of the main body.

The reading device 3 is a device that reads the writing surface while moving on the surface of the writing sheet 2. Although not shown in the drawing, the reading device 3 includes a semiconductor light emitting element as a light source, a CIS type image reading sensor, and a micro optical system. The motor for movement is built-in.
An operation panel 4 is provided on the surface of the case of the reading device 3, and the reading device 3 is moved along a rail provided on the upper surface of the main body 1 by turning on the reading switch of the operation panel 4. While moving, the writing surface of the writing sheet 2 is continuously read.
A plurality of vertically long image data continuously read is developed on an image memory, and one image data is recorded.

In addition to the automatic reading mode by driving the reading apparatus moving motor, the apparatus of this embodiment has a manual reading mode.
The manual reading mode operates by turning on the manual switch 6 provided in the reading device 3, holding the handle 5, and moving on the writing sheet 2.
When the manual switch 6 is turned on, the above-mentioned light source is driven without rotating the moving motor, and a predetermined movement (predetermined value) is made based on the position signal (rotation speed signal) of the moving motor. The reading operation of the reading sensor is continuously performed every rotation number).
By turning off the manual switch 6, the light source is turned off and the reading operation is also terminated.

In the manual mode, the writing sheet 2 can be partially read by turning on the manual switch 6 at a predetermined position and turning off the manual switch 6 after a predetermined movement.

In addition, since the main purpose of the conventional electronic blackboard apparatus is to show the writing surface to many people, the main body is fixed perpendicularly to the ground.
However, the electronic canvas device of the present invention is required to be easier to draw than to show.
Therefore, the main body 1 has a structure that can be tilted forward and backward and left and right with respect to the leg portion 8.

FIG. 2 shows an embodiment in which the main body 1 is inclined later.
By pressing the tilt switch 7 provided on the side surface of the main body 1, it is possible to rotate around the joint point with the leg portion 8.
When the tilt switch 7 is released at a predetermined tilt angle, the main body 1 is fixed to the leg portion 8 at the tilt angle.

FIG. 3 shows an embodiment in which the main body 2 is tilted left and right.
This figure represents the back of the electronic canvas device.
A ring-shaped main body holding member 9 is rotatably attached to the leg portion 8, and a circular cylindrical portion of the main body that engages with the opening is formed in the circular opening at the center of the ring of the main body holding member 9. 10 is held rotatably.
By pressing the tilt switch 7 described above, the main body 1 can be rotated around the cylindrical portion.
When the tilt switch 7 is released at a predetermined tilt angle, the main body 1 is fixed to the leg portion 8 at the tilt angle.

For example, if the right side of the main body is tilted so that the right side of the main body is tilted upward in order to eliminate the difficulty of drawing a diagonal line with the right hand diagonally downward to the right, drawing becomes easier.
The writing sheet 2 can be used with pencils, charcoal, watercolor paints, and the drawn image can be easily erased.
In the conventional electronic blackboard device, writing was possible only with a dedicated marker, but in this device, a brush can be used.

For this reason, the paint may be struck from the writing sheet 2.
In order to prevent the sagging of the paint from soiling the ground, the apparatus according to the present embodiment has a structure in which the sagging of the paint is collected by the tray 11 as shown in FIG.
The lower end portion of the writing sheet 2 is joined to the tray 11 by forming a recess and providing an inclination so that the paint sag is not sucked up by the surface tension in the gap with the main body.
In addition, when the writing sheet drawn on the first surface is transferred and drawn on the second surface, it is assumed that the paint may be applied to the rear side of the main body. Has been.
In addition, an opening is provided under the rear cover 12 on the rear surface of the main body to enable cleaning of the rear tray.

The present invention is not limited to the above-described embodiments. For example, the operation panel may be provided on the main body.
Further, a connection terminal with a personal computer may be provided in the main body, and the read image data may be taken into the personal computer by controlling the reading operation or the like with the personal computer.
Further, only one of the mechanisms that perform the forward / backward tilt and the left / right tilt may be used.
Further, a storage case for the art material may be provided on the main body or the leg.

The present invention is an extension of the application of the electronic blackboard device, and can be used to draw conventional watercolors in full color and read in full color, and can be used for design production and learning of paintings at schools, etc. It becomes possible.

FIG. 1 is a front view showing a main configuration according to an embodiment of the present invention. FIG. 2 is a side view showing a state in which the embodiment of the present invention is inclined later. FIG. 3 is a rear view showing a state in which the embodiment of the present invention is tilted left and right. FIG. 4 is a cross-sectional view showing the configuration of the main body tray according to the embodiment of the present invention.

Explanation of symbols

1: Body 2: Writing sheet 3: Reading device 6: Manual switch 7: Tilt switch 8: Leg

Claims (6)

A writing instrument that can mix colors, a writing sheet that can be written in mixed colors with a writing instrument, a main body that holds the writing sheet, a leg that supports the main body, and a reading that reads a written image of the writing surface An electronic canvas apparatus comprising: an apparatus; storage means for recording a read image; and an eraser for erasing a written image. The electronic canvas device according to claim 1, wherein the writing instrument is a brush-type writing instrument. 2. The electronic canvas device according to claim 1, wherein the reading device is a self-propelled reading device that scans on a writing sheet and has an operation panel. The electronic canvas device according to claim 3, wherein the reading device has a manual scanning mode. The electronic canvas device according to claim 1, wherein the main body is held on the leg portion so as to be tiltable. 6. The electronic canvas device according to claim 5, wherein the main body is held on the leg portion so as to be tiltable in the front-rear direction and the left-right direction.

Images