JPH09175084A - Electronic white board - Google Patents

Abstract

PROBLEM TO BE SOLVED: To utilize a number of format images for representing tables at the time of using an electronic white board. SOLUTION: Format images corresponding to formal data are projected from a projection part 2 to the writing face of a writing sheet, and images are written in the writing face with format images projected. In this manner, in forming images on the writing face of an electronic white board, a number of format images can be utilized effectively. After forming images like this, written images are read by a reading part 12, and formal data of format images projected from the projection part 2 and image data of written images read by the reading part 12 are synthesized at a synthesizing part 13, then the synthesized images corresponding to data synthesized at the synthesizing part 13 are printed by a printer 14.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic blackboard capable of forming an image on a writing surface of a writing sheet and printing the image on a sheet with a printer.

[0002]

2. Description of the Related Art In recent years, electronic blackboards have become widespread in which an image formed by handwriting during a conference or a lecture can be printed as it is.

In such an electronic blackboard, for example, when an image is formed using a standard format image such as a table, the format image is directly written on the writing surface of the writing sheet or the format image is written. A transparent film is attached to the writing surface of the writing sheet.

[0004]

However, the writing sheet is an endless type sheet wound around a pair of rollers, and the writing sheet generally has two writing surfaces.
Therefore, the number of format images that can be repeatedly used is two, and when using two or more format images, the already written format image is erased and another format image is written, It is necessary to peel off the attached transparent film and attach the transparent film on which another format image is written. Therefore, it is difficult to use the number of format images larger than the number of writing surfaces of the writing sheet.

Further, if the written image written on the writing surface is erased, only the printed paper can confirm the written image, and the once erased written image is written on the writing surface. It cannot be reproduced and confirmed. For this reason, corrections and additions are added to the once erased write image,
It is extremely difficult to print again as an image formed in the best condition.

[0006]

According to the first aspect of the present invention,
A movably supported writing sheet, a projection unit that projects a format image corresponding to format data onto the writing surface of the writing sheet, a reading unit that reads the written image written on the writing surface, and A combining unit that combines the format data of the format image projected from the projection unit and the image data of the write image read by the reading unit, and prints a combined image corresponding to the combined data that is combined by this combining unit. Since it has a printer, various format images are selectively projected on the writing surface, and by writing on the writing surface on which the format image is projected, a large number of format images are effective when forming an image on the writing surface. Can be used for. The writing image written on the writing surface is read by the reading unit, and the image data of the writing image read by the reading unit and the format data of the projected format image are combined by the combining unit to be combined. A composite image corresponding to the combined data is printed by the printer.

According to a second aspect of the present invention, in the first aspect of the invention, since the positioning mark for positioning the projection position of the format image projected from the projection unit is provided on the writing surface or around the writing surface, the format image is formed. By projecting in accordance with the positioning mark when projecting, the positional deviation is prevented when the image data of the writing image read by the reading unit and the format data of the projected format image are combined, and the combination is performed. When the image is printed, it can be printed in substantially the same state as the image formed on the writing surface.

According to a third aspect of the present invention, in the first aspect of the present invention, a storage unit is provided for storing the synthetic data synthesized by the synthesis unit, and a synthetic image corresponding to the synthetic data stored in the storage unit is generated. Since the projection unit projects onto the writing surface, the composite data stored in the storage unit can be recalled and projected from the writing unit onto the writing surface. It can be reproduced and confirmed on the above, and it is also possible to write corrections and additional images to the reproduced image and synthesize them again, and print the image formed in the best state by repeating corrections and additions. can do.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described with reference to the drawings. FIG. 2 is a perspective view showing the overall structure of the electronic blackboard. The electronic blackboard is formed by the blackboard body 1 and the projection unit 2. The blackboard body 1 has a pair of stands 3
Thus, a frame 4 having both front and rear surfaces opened is supported, and a pair of rollers (not shown) having a vertical axis are supported at both left and right ends of the frame 4. On these rollers, an endless writing sheet 5 on which images such as characters and figures can be written with a writing instrument such as a marker
The portion of the writing sheet 5 exposed from the front opening of the frame 4 serves as a writing surface 5a for writing with a writing tool, and the rear surface of the frame 4 is covered with a plate member. The projection unit 2 projects various format images such as a table onto the writing surface 5a,
It is connected to the blackboard body 1 with a connection cable 6. Also,
A positioning mark 7 for positioning the projection position of the format image projected from the projection unit 2 is printed on the writing surface 5a. The positioning mark 7 may be provided on the front surface side of the frame 4.

FIG. 1 is a block diagram showing a schematic structure of an electronic blackboard. A CPU 8 for controlling various operations is provided, and the CPU 8 includes an input unit 9 and a seat driving unit 1.
0, a memory 11 that is a storage unit, a reading unit 12, and a combining unit 1
3, the printer 14, the projection unit 2 and the like are connected.

The input section 9 is provided with various keys. By operating these keys, movement of the writing sheet 5, projection from the projection section 2, printing by the printer 14, etc. can be performed. Done.

The sheet drive unit 10 has a drive motor connected to one of the rollers, and drives the drive motor to move the writing sheet 5.

The memory 11 stores format data of a large number of format images projected from the projection unit 2, synthetic data created by synthesizing image data and format data in the synthesizing unit 13 as described later, and the like. .

The reading unit 12 is formed of a fluorescent lamp, a mirror, a lens, a CCD sensor, and the like, and reads a writing image written on the writing surface 5a with a marker or the like while moving the writing sheet 5.

The synthesizing unit 13 writes the format data of the format image projected from the projecting unit 2 and the image of the writing image read by the reading unit 12 while being written on the writing surface 5a onto which the format image is projected. It is a part that combines with data and creates composite data,
This combined data is stored in the memory 11.

The printer 14 prints the write image read by the reading unit 12 or the composite image corresponding to the composite data combined by the combining unit 13.

In such a configuration, when a format image such as a table is used when forming an image using the electronic blackboard, it is stored in the memory 11 by operating the input unit 9. The necessary format data is selected from the large number of format data that are present, and the format image corresponding to the format data is projected from the projection unit 2 onto the writing surface 5a. At this time, since the positioning image is present in the image projected from the projection unit 2, this image is aligned with the positioning mark 7 on the writing surface 5a.

Then, the image is written on the writing surface 5a on which the format image is projected by using a marker or the like. Therefore, the specific format image is written on the writing surface 5.
Since the image is projected on a and the image can be formed on the writing surface 5a using the format image, the usability of the electronic blackboard is significantly improved. Moreover, various format data are stored in the memory 11, and the format images to be projected can be easily switched one after another by operating the input unit 9.
A large number of format images are available.

When an image is formed by writing the image on the writing surface 5a on which the format image is projected and then printing the image, the image is printed by operating the input unit 9. . Then, the sheet driving unit 10 drives to move the writing sheet 5 and the writing surface 5a moves to the back side, and the writing unit 12 reads the written image written on the writing surface 5a. Then, the image data of the write image read by the reading unit 12 is converted into the combining unit 13
The format data of the format image that has been sent to and is projected from the memory 11 is sent from the memory 11 to the synthesizing unit 13, and the synthesizing unit 13 synthesizes the format data and the image data to create synthetic data. When the composite data is created, the composite data is output to the printer 14, and the composite image corresponding to the composite data is printed by the printer 1.
Printed at 4.

Here, when the format image is projected from the projection unit 2, when the format data and the image data are combined by aligning and projecting with the positioning mark 7 printed on the writing surface 5a. It is possible to prevent the misalignment of the image and the printed image, and the printed image can be printed in substantially the same state as the image formed on the writing surface 5a.

The synthesized data synthesized by the synthesizer 13 is sent to the memory 11 and stored therein. Therefore, even after the writing image written on the writing surface 5a on which the format image is projected is erased, the synthetic data synthesized by the synthesizing unit 13 is called from the memory 11, and the synthetic image corresponding to this synthetic data is obtained. Can be projected from the projection unit 2 onto the writing surface 5a. Therefore, the erased write image can be reproduced and confirmed on the writing surface 5a together with the format image. Further, correction and addition are added to the composite image projected from the projection unit 2 and reproduced on the writing surface 5 a, and the writing image related to this correction and addition is read by the reading unit 12 and read by the reading unit 12. The image data of the write image related to correction and addition and the combined data of the projected combined image are combined again by the combining unit 13 and printed by the printer 14 as an image formed in the best state including corrections and additions. can do. Moreover, it is possible to repeatedly project a composite image corresponding to such composite data, correct and add the composite image, and composite again.

In the present embodiment, the case where the format data is stored in the memory 11 in the blackboard body 1 has been described as an example, but the format data is stored in the projection unit 2 and stored in the memory. You may memorize it, or
It may be transmitted from another device such as a microcomputer.

[0023]

According to the first aspect of the invention, the format image is projected from the projection unit onto the writing surface, and the image is written on the writing surface on which the format image is projected to form the image on the writing surface. Since a large number of format images can be effectively used by switching the format images to be projected, the usability of the electronic blackboard can be improved, and the format images projected from the projection unit can be improved. It is possible to create synthetic data by synthesizing the format data and the image data of the writing image written on the writing surface, and it is possible to print the synthetic image corresponding to the synthetic data on the paper by the printer.

According to the second aspect of the invention, when the format image is projected on the writing surface, the writing image is projected along with the positioning mark provided on the writing surface or around the writing surface, so that the writing image read by the reading unit is read. It is possible to prevent misalignment when combining the image data of the embedded image and the format data of the projected format image, and when printing the combined image, it is printed in almost the same state as the image formed on the writing surface. be able to.

According to the third aspect of the present invention, the combined data combined by the combining unit is stored in the storage unit, and the combined image corresponding to this combined data is projected from the projection unit onto the writing surface. Even after erasing the written image that was written, the written image can be projected on the writing surface together with the format image for confirmation, and corrections and additional images can be written to the projected image. By synthesizing again with, an image in the best state can be formed and printed.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a schematic structure of an electronic blackboard according to an embodiment of the present invention.

FIG. 2 is a perspective view showing the overall structure of an electronic blackboard.

[Explanation of symbols]

 2 Projection unit 5 Writing sheet 5a Writing surface 7 Positioning mark 11 Storage unit 12 Reading unit 13 Compositing unit 14 Printer

Claims (3)

[Claims] 1. A writing sheet movably supported,
A projection unit that projects a format image corresponding to the format data onto the writing surface of the writing sheet, a reading unit that reads the written image written on the writing surface, and format data of the format image projected from the projection unit An electronic blackboard comprising: a synthesizing unit for synthesizing the image data of the writing image read by the reading unit, and a printer for printing a synthetic image corresponding to the synthesizing data synthesized by the synthesizing unit. . 2. The electronic blackboard according to claim 1, wherein a positioning mark for positioning the projection position of the format image projected from the projection unit onto the writing surface is provided on the writing surface or around the writing surface. 3. A storage unit is provided for storing the synthetic data synthesized by the synthesizing unit, and a synthetic image corresponding to the synthetic data stored in the storage unit is projected from the projection unit onto the writing surface. The electronic blackboard according to claim 1.