JPH0374867B2 - - Google Patents

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention comprises a large writing medium whose screen can be moved by rollers, and a means for recording an image written on the writing medium on recording paper. The present invention relates to an electronic whiteboard device.

[Conventional technology]

As a conventional electronic whiteboard device of this type, there is, for example, an electronic whiteboard device such as Japanese Patent Application No. 58-44283 (Japanese Patent Publication No. 62-56000) filed by the present applicant. FIG. 2 shows a block diagram for explaining its functions, and FIG. 3 shows a perspective view of the writing medium.

In FIG. 2, 1 is a large writing medium that can be written with a writing implement such as a felt pen, 2 is a back plate having a size approximately equal to one screen of the writing medium 1, and 3
1 is a first roller that feeds and takes up the writing medium 1; 4 is a similar second roller; 5 is a first drive motor that drives the first roller 3; 6 is a drive motor that drives the second roller 4. 7 is a light source that illuminates the surface of the writing medium 1; 8 is a light beam shown for convenience; 9 is a mirror; 10 is a lens; 11 is a character or symbol written on the writing medium 1; A photoelectric conversion element that converts an image such as a figure from light to an electrical signal line by line, 12 is an element peripheral circuit, 13 is a control circuit, 14 is an image memory, 15 is a motor drive control circuit, 16 is a print control circuit, 17 is recording paper, 1
8 is a paper feed motor, 19 is a platen roller, 20
Reference numeral 21 indicates a thermal head which is an example of a recording means, and 21 indicates an operation unit which operates each of the above-mentioned components via the control circuit 13.

In FIG. 2, the writing medium 1 is wound around the first roller 3 for several screens, and the back plate 2 is wound for one screen.
It is pulled out on top.

Therefore, after writing an image on the writing medium 1 on the back plate 2, when the operation unit 21 is operated to instruct recording, the motor drive control circuit 15 is activated by a signal from the control circuit 13 to start the first drive motor. 5 and the second drive motor 6, thereby causing the first roller 3 to rotate.
The writing medium 1 is fed out and simultaneously wound around the second roller 4. After one screen's worth of feeding and winding is completed, the rotation of the first drive motor 5 and the second drive motor 6 is stopped.

On the other hand, the written image is illuminated by a light source 7 just before the writing medium 1 is wound around the second roller 4, and the reflected light ray 8 changes direction by a mirror 9 and passes through a lens 10 to a photoelectric conversion element. 11
The light is received by the The image received by the photoelectric conversion element 11 is converted into an electric signal as a single line in the vertical direction (the vertical direction of the writing medium 1 shown in FIG. 2), and is converted into an electric signal as a single line in the horizontal direction (the vertical direction of the writing medium 1 shown in FIG. The signal is converted into a horizontal electrical signal synchronized with the signal and sent to the control circuit 13 via the element peripheral circuit 12.

Here, the control circuit 13 writes the sent electric signal as image information into the image memory 14 and at the same time outputs it to the thermal head 20 via the print control circuit 16, which causes the thermal head 20 to write on the writing medium 1. Transfer the loaded image to platen roller 1.
The image is reduced and recorded on recording paper 17 on top of 9. After recording, the recording paper 17 is sent by a platen roller 19 rotated by a paper feed motor 18, and is ejected from the apparatus.

If two or more copies of the same content are required, specify the number of copies using the operation unit 21, and the image information written in the image memory 14 will be output one after another under the control of the control circuit 13, and the thermal head 20 will record the required number of copies. will be recorded.

Furthermore, if you wish to display the screen on which the image of the writing medium 1 has been written on, you can instruct this using the operation unit 21, and the first drive motor 5 and the second drive motor 6 will be reversed, thereby causing the second At the same time as the writing medium 1 is fed out from the roller 4, it is wound up by the first roller 3, and the screen is moved onto the back plate 2.

Note that the writing medium 1 shown in FIG. 3 is the same as that shown in FIG. There is also a device in which the writing medium 1 formed in the above manner is wound around two rollers 22 and 23 and moved in circulation.

[Problem that the invention seeks to solve]

By the way, the above-mentioned conventional electronic whiteboard device displays an image written on the writing medium 1 to attendees at a meeting or a meeting, and also reduces the written image to the recording paper 17 on the spot if necessary. Although it has the advantage of being able to record it and give it to attendees, it has the problem that even though it has a recording means, it can only record images written on a writing medium.

It is an object of the present invention to solve this problem and to realize an electronic blackboard device that functions as a copying machine and can also record images written on media other than writing media.

[Means for solving problems]

In order to achieve the above-mentioned object, the present invention uses a light source that illuminates a writing medium as a first light source.
A second light source is disposed at a different position from the light source, and a conveying means is provided for conveying a medium other than a writing medium inserted from an insertion opening of the device to a position illuminated by the second light source, and a second light source is provided. A photoelectric conversion element that receives reflected light from a medium illuminated by a second light source is provided separately from a photoelectric conversion element that receives reflected light from a writing medium illuminated by a second light source, or a photoelectric conversion element that receives reflected light from a writing medium illuminated by a second light source is provided. A moving mechanism is provided for moving a photoelectric conversion element that receives reflected light to a position where it receives reflected light from a medium.

[Effect]

According to the above-mentioned means, the medium inserted through the insertion port of the device is conveyed by the conveying means to the illumination position of the light source, and the reflected light of the illumination is received by the photoelectric conversion element and converted into an electric signal. It is now possible to record an image on recording paper using the thermal head of the recording means, and therefore it is possible to not only record the image written on the writing medium in a reduced size, but also to record the image written on the writing medium by printing or handwriting, for example. It is possible to copy the contents of media of sizes such as , A1, etc.

〔Example〕

Examples will be described below with reference to the drawings.

FIG. 1 is a perspective view of essential parts of an embodiment of an electronic whiteboard device that also serves as a copying machine according to the present invention, in which 1 is a writing medium, 3 is a first roller, 4 is a second roller, and 5 is a second roller. 1 is a drive motor, 6 is a second drive motor, 7 is a light source, 9 is a mirror, 10 is a lens, 1
1 is a photoelectric conversion element, which is the same as that shown in FIG.

In this embodiment, the light source 7 that illuminates the writing medium 1 is used as a first light source, and a second light source 24 is provided at a different position apart from the first light source 7, for example, near the lower side of the writing medium 1. ing.

Reference numeral 25 denotes a medium that is inserted through an insertion slot provided in the device housing (not shown), and is, for example, a medium of A1 to A2 size, on which images such as letters and figures are written by hand or by printing. .

26 is a conveyance mechanism that conveys the medium 25 from the insertion opening to a position illuminated by the second light source 24, which includes, for example, a plurality of rollers, an endless belt, and drives this endless belt via the rollers. The control circuit 13 shown in FIG. 2 is composed of a motor, etc.
It has come to be controlled by

27 is a lens; 28 is a photoelectric conversion element that receives reflected light from the medium 25 through the lens 27; this photoelectric conversion element 28 is connected to the control circuit 13 via an element peripheral circuit (not shown).

In other words, in this embodiment, the second light source 2
4, a reading optical system consisting of a lens 27 and a photoelectric conversion element 28 is arranged.

Note that the other configurations are the same as those in FIG. 2.

Next, the operation of this embodiment will be explained.

An image is written on the writing medium 1, this image is illuminated with the first light source 7, and the reflected light is transmitted to the photoelectric conversion element 11.
As in the past, the image is converted into an electrical signal by the control circuit 13, and the image can be reduced and recorded on the recording paper 17 by the thermal head 20 under the control of the control circuit 13.

Therefore, when copying and recording an image written on a medium 25 other than the writing medium 1 on the recording paper 17, a copy instruction is given using the operation unit 21 shown in FIG. Once inserted, the transport mechanism 26 transports the medium 25 to the illumination position of the second light source 24 under the control of the control circuit 13 . The reflected light from the medium 25 passes through the lens 27 to the photoelectric conversion element 2.
8, the image is converted into an electrical signal and sent to the control circuit 13. Thereafter, the image written on the medium 25 is reduced and recorded on the recording paper 17 in the same manner as the recording of the image written on the writing medium 1, and copies are made on two or more sheets as necessary.

The medium 25 that has been illuminated is returned to the insertion port by the transport mechanism 26, or is discharged to a separately provided discharge port.

Next, another embodiment will be described with reference to FIGS. 4 and 5. The embodiment described above includes a photoelectric conversion element 11 that receives reflected light from a writing medium 1 through a lens 10.
In addition, a photoelectric conversion element 28 that receives reflected light from the medium 25 through a lens 27 is provided, but this lens 27 and photoelectric conversion element 28 are not used, and the lens 10 and photoelectric conversion element 11 are combined. The medium 25 moves horizontally as shown by arrow a in FIG.
By rotating the upper light receiving position 90 degrees as shown by arrow b, the reflected light from the medium 25 is received.
It is also possible to record the image.

As a moving mechanism in this case, for example, the mechanism shown in FIG. 5 can be considered. That is, FIG. 5 is a plan view showing the moving mechanism, in which a carriage 30 is slidably mounted on a guide shaft 29 fixed parallel to the writing medium 1, and a pulley rotates a part of the carriage 30 by a motor 31. 32 and 33
and a wire or belt 34 stretched between the two. A rotary solenoid 35 is mounted on the carriage 30, and the photoelectric conversion element 11 is attached to the rotation axis of the rotary solenoid 35 together with the lens 10.

In addition, the motor 31 and the rotary solenoid 35
are each controlled by the control circuit 13 via a drive circuit.

According to this configuration, the position where the reflected light from the writing medium 1 is received is the initial position of the photoelectric conversion element 11, and when recording on the medium 25, when the motor 31 is driven to rotate the pulley 32, the wire or belt 34, the carriage 30 is connected to the guide shaft 2.
9 in the direction of the arrow shown in FIG.
The movement of the carriage 30 is stopped at the light receiving position corresponding to 5, and then the photoelectric conversion element 11 can be rotated 90 degrees together with the lens 10 by the rotary solenoid 35.

Of course, the photoelectric conversion element 11 is connected to the lens 10 by the reverse operation.
can be returned to the initial position.

In this embodiment, the distance is different between when receiving the reflected light from the writing medium 1 and when receiving the reflected light from the medium 25, so to cope with this, the lens 10 is a zoom lens. It is necessary.

〔Effect of the invention〕

As explained above, the present invention disposes the second light source at a different position from the first light source that illuminates the writing medium, and also provides an image on which images other than the writing medium inserted through the insertion port of the device are written. A transport means is provided at a position where the medium is illuminated by the second light source, and a photoelectric conversion element is provided to receive the reflected light from the medium illuminated by the second light source, or a photoelectric conversion element is provided to receive the reflected light from the writing medium. Since it is equipped with a moving mechanism that moves the photoelectric conversion element that receives light to a position where it receives reflected light from the medium, it is possible to copy and record images on media other than writing media, and the recording means can be used more effectively. effective. Therefore, the value of use increases, for example, by being able to record materials brought in by attendees at a meeting or the like on the spot.

[Brief explanation of drawings]

FIG. 1 is a perspective view of essential parts of an embodiment of an electronic whiteboard device that also serves as a copying machine according to the present invention, FIG. 2 is a block diagram for explaining the functions of a conventional electronic whiteboard device, and FIG. 3 is a writing medium. 4 is a perspective view showing another embodiment of the present invention, and FIG. 5 is a plan view showing an example of a moving mechanism used in the embodiment of FIG. 4. 1... Writing medium, 3... First roller, 4...
Second roller, 7... First light source, 9... Mirror, 10... Lens, 11... Photoelectric conversion element, 1
3...Control circuit, 14...Image memory, 17
...recording paper, 20 ... thermal head, 24 ... second light source, 25 ... medium, 26 ... transport mechanism, 2
7... Lens, 28... Photoelectric conversion element, 29...
Guide shaft, 30... Carriage, 31...
Motor, 35...Rotary solenoid.

Claims (1)

[Claims] 1. A large writing medium whose screen can be moved by the rotation of a roller, a light source that illuminates the writing medium, a photoelectric conversion element that converts an image written on the writing medium from light to an electrical signal, and the photoelectric conversion In an electronic whiteboard device comprising a control circuit that outputs an electric signal from an element as image information to a recording means, and a storage means that records an image on recording paper based on the image information, a first light source illuminates the writing medium. As a light source, a second light source is arranged at a different position from the first light source, and a medium other than a writing medium has an image written on it at a position illuminated by the second light source from the insertion opening of the device. and a photoelectric conversion element that receives reflected light from the medium separately from the photoelectric conversion element that receives reflected light from the writing medium, or
Alternatively, a mechanism is provided to move a photoelectric conversion element that receives reflected light from a writing medium to a position where it receives reflected light from the medium, and the image written on the medium is recorded on recording paper by the recording means. An electronic whiteboard device that doubles as a copying machine.