JPS63149199A - Electronic blackboard device - 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 [Field of Industrial Application] The present invention relates to an electronic blackboard device that is capable of writing characters, figures, etc. and displaying information prepared in advance.

[Prior Art] Conventionally, electronic whiteboard devices generally have a function of reading image information such as written characters, figures, etc., and reducing and copying the image information. Such electronic whiteboard devices are mainly used in meetings and the like, and have the effect that each attendee does not have to take notes on the image information written on the blackboard during the meeting. However, when presenting pre-prepared information to attendees, it would take a lot of time to write it down on an electronic blackboard device, so the electronic blackboard device is only used for taking notes; In order to display the information, it was necessary to use slides and over-the-top projectors. Therefore, it is clear that if the electronic whiteboard device had a function of displaying information prepared in advance, its uses would be greatly expanded.

Japanese Unexamined Patent Publication No. 61-26127 discloses an electronic whiteboard device in which a transparent coordinate detection device is installed on the display surface of a display device. According to this electronic blackboard device, characters, figures, etc. written on the coordinate detection device are displayed on the display device, and information prepared in advance is input to the display device via the input device and displayed immediately. Is possible.

Further, Japanese Patent Application Laid-Open No. 6C-263557@ discloses an electronic blackboard with automatic handwritten input. In this electronic whiteboard device, image information on a small recording medium such as paper is read by a reading device, and is automatically written with a felt-tip pen on the large writing medium of the electronic whiteboard device by a writing mechanism.

"Problems to be Solved by the Invention" In the electronic whiteboard device disclosed in Japanese Patent Application Laid-Open No. 61-26127, a transparent air cap type touch sensor device is used as a coordinate detection device. These methods are also generally known, but because they all have complicated structures, it is very difficult to manufacture large devices that can be used in electronic whiteboard devices, and they also have the problem of high costs.

In addition, in the electronic whiteboard device disclosed in Japanese Patent Application Laid-Open No. 60-263557, the writing mechanism uses a single felt-tip pen to write image information read from a small recording medium such as paper on a large writing medium, so the writing speed is low. It is impossible to immediately display pre-prepared information that is very slow.

UObject of the Invention The present invention has been made in view of the problems of the conventional devices described above, and its purpose is to provide an electronic whiteboard device that has an extremely simple configuration and can instantly display information prepared in advance. be.

[Means for Solving the Problems] In order to achieve the above-mentioned objects, the present invention provides a display device that visually displays various information, and a translucent device that is placed in front of the display device and on which characters, figures, etc. are written. The display device is configured to include a flexible writing medium and a support means for movably supporting the writing medium along the display device.

"Function" In the electronic whiteboard device of the present invention having the above configuration, writing is directly performed on the surface of the translucent writing medium with a writing instrument such as a felt pen, and the display device displays information prepared in advance from the rear of the writing medium. The writing medium is movably supported by the support means, so that when one screen of writing is completed, it is moved to provide the next new screen. The screen where you finished writing will be displayed again.

[Example] An example of the present invention will be described in detail below with reference to the drawings.

FIG. 1 is a drawing showing the electrical configuration and mechanical configuration of this embodiment, and FIG. 2 is a front view of the electronic whiteboard device of this embodiment.

The writing medium 10 is formed of a translucent band-like member, has a length of at least two writing surfaces, and can be written on the surface with a felt pen, and the written characters, shapes, etc. can be erased with a blackboard eraser. Can be erased.

The LED display 12 is a display device that visually displays image information, and is supported by a support frame 64 at the rear of the writing medium 10. To the left of the LED display 12, a guide roller 14 is mounted on a bearing 56.5s provided on a support frame 64.
A guide roller 16 is rotatably supported on the right side of the LED display 12 by bearings 60 and 62 provided on a support frame 64. Openings 54,52 are formed in the support frame 64 to allow the writing medium 10 to pass therethrough in the vicinity of the guide rollers 14,16. As shown in FIG. 1, the feed drum 182 and take-up drum 20 are respectively disposed at the rear of the openings 52 and 54, and are driven by the rotation of motors 22 and 24 to feed and wind up the writing medium 10. LE writing medium 10
The mechanism that supports the D display 12 so as to be movable along the display surface is the book guide roller 14, 16 and the opening 52.
54, a feed drum 18, and a winding drum 20.

The white board 26 is arranged between the guide roller 14 and the winding drum 20 at a position where it engages with the back surface of the writing medium 10. The light source 28 is placed at a position where it can irradiate light onto the white board 26, and the mirror 30 reflects the light from the light source 28 on the white board 26.
It is arranged at an angle that causes reflection in the direction of the lens 32.

The light receiving element 34 is an element that converts the optical signal from the lens 32 into an electrical signal, and the light receiving element peripheral circuit 36 is an element that converts the optical signal from the lens 32 into an electrical signal.
4 and the control circuit 38, and is a circuit that amplifies and binarizes the electrical signal from the light receiving element 34. From the above-mentioned white board 26, light source 28, mirror 30, lens 32, light receiving element 34, and light receiving element peripheral circuit 36, a character 1 figure written on the writing medium 10 while the writing medium 10 is being wound around the winding drum 20. A mechanism is constructed to read the information.

The memory 40 as an image storage means is a random access memory (RAM) in which image information can be written and read.
and is connected to the control circuit 38.

An interface unit 44 is provided to connect a facsimile 46 and a word processor 48 with a built-in floppy disk drive to the control circuit 38. Through the information transmission operation of the interface section 44, the facsimile 46 prints the image information in the memory 40 read out by the control circuit 38, and transfers the image information read from the document prepared in advance to the memory 40 via the control circuit 38. It is possible to supply Further, the word processor 48 transfers the image information created by the word processor 48 to the control circuit 3 through the information transmission operation of the interface unit 44 described above.
8 to the memory 40 and the control circuit 38
It is possible to write the image information read out from the memory 40 onto a floppy disk using a built-in floppy disk drive.

The operating section 42 installed on the support frame 64 is composed of a keyboard, and is connected to the control circuit 38. The operation section 42 can supply various commands to the control circuit 38 through input operations thereof.

The motor drive control circuit 50 is connected to the control circuit 38 so that an input command from the operation unit 42 is supplied via the control circuit 38.
The motor 22 is connected to the motor 22 and is configured to drive a motor 22 that rotates the feed drum 18 and a motor 24 that rotates the take-up drum 20 in accordance with the input command.

Next, the operation of this embodiment will be explained.

First, as a first operation, an operation until image information such as characters 2 graphics written on the writing medium 10 is stored in the memory 40 will be described.

When image information such as one character or figure is written on the writing medium 10 with a felt-tip pen and the writing for one screen is completed, the operator inputs a small movement command from the keyboard of the operation unit 42.

The movement command is sent to the motor drive control circuit 5 via the control circuit 38.
0 and the motors 22 and 24 rotate. motor 22
．． 24 is then transmitted to the crosspiece feed drum 18 and the take-up drum 20, the writing medium 10 is sent out from the feed drum 18 and taken up by the take-up drum 20, and a new writing surface is placed in front of the LED display 12. will be placed in In synchronization with this moving operation, the light source 28 is turned on and irradiates the writing medium 10 passing over the white board 26 on its way to the winding drum 20 with light. The light is reflected by the writing medium 10 on the white board 26, and an optical signal corresponding to the image information written on the writing medium 10 is generated. This optical signal is reflected by the mirror 30 in the direction in which the lens 32 is arranged, is focused by the lens 32, and is imaged onto the light receiving element 34. Light receiving element 34
The optical signal is converted into an electrical signal, amplified by the light receiving element peripheral circuit 36, binarized, and supplied to the control circuit 38.
It is written into memory 40 by control circuit 38 .

Next, as a second operation, facsimile 46. The operation until the image information input from the word processor 48 is displayed on the LED display 12 will be explained.

The operator uses the operation section 42 to select an information input device consisting of a facsimile 46, a word processor 48, and a floppy disk drive built into the word processor, and image information is supplied from the selected information input device to the interface section 44. be done. The image information supplied to the interface section 44 is supplied to the control circuit 38 by the information transmission operation of the interface section 44, and is written into the memory 40 by the control circuit 38. When the operator inputs a display command from the keyboard of the operation unit 42, the control circuit 38 reads image information from the memory 40 and displays the image information on the LED.
The image information is transferred to the display 12, and the LED display 12 transfers the transferred image information to the translucent writing medium 10.
Visually displayed optically through.

By a combination of the above first operation and second operation, information prepared in advance is displayed on the LED display 12,
A third operation of writing on the writing medium 11 and combining the image on the LED display 12 with the image written on the writing medium 10 becomes possible. The operation of box 3 will be explained below.

Information prepared in advance is stored in the memory 40 according to the second operation from the information input device, and displayed on the LED display 12 in response to a display command input from the operation unit 42. Since the writing medium 10 is translucent, writing is performed on the writing medium 10 so as to add to the image information displayed on the LED display 12. When writing for one screen is completed, the writing medium 10 is moved and read according to the first operation, and the image information written on the writing medium 10 is stored in the memory 40. Therefore, the image information supplied from the information input device and the image information read from the writing medium 10 are stored in the memory 40.

When the operator inputs a composite display command from the keyboard of the operation unit 42, the control circuit 38 inputs the image information supplied from the information input device stored in the memory 40 and the writing medium 10.
and the image information read out from the display are read out and transferred to the LED display 12, and the LED display 12 visually displays the combined image information optically. It is also possible to select one of the above image information and display it on the LED display 12 according to a command from the operation unit 42.

Finally, as a fourth operation, the image information stored in the memory 40 is sent to the facsimile 46. The operation of supplying data to the word processor 4B will be explained.

When printing image information on the writing medium 10.1 ED display 12, the operator inputs a print command from the keyboard of the operation unit 42. The control circuit 38 reads image information from the memory 40 and transfers it to the read interface section 44 in accordance with the print command. The image information is supplied from the interface section 44 to the facsimile 46 and printed by the facsimile 46. Furthermore, when the image information stored in the memory 40 is to be stored on a floppy disk, the operator inputs a storage command from the keyboard of the operation unit 42.

The control circuit 38 reads the image information from the memory 40 and transfers it to the read interface section 44 in accordance with the storage command. The image information is supplied from the interface section 44 to the word processor 48, and is written to a floppy disk by a floppy disk drive built into the word processor 48.

As described above, according to the present embodiment, there is a mechanism for reading image information written on the writing medium 10, a facsimile 46, a word processor 48, and a mechanism for reading image information written on the writing medium 10 and the image information read from the writing medium 10 and supplied from the facsimile 46 and the word processor 48. By adding a memory 40 for storing image information written on the writing medium 10, it is possible not only to display previously prepared information and information written on the writing medium 10, but also to combine, store, and print the image information of both. This makes it possible to provide an extremely multi-functional electronic whiteboard device.

Note that the LED display 12 is used as the display device of the present invention.
However, it is obvious that display devices such as a CRT, a liquid crystal display, a fluorescent display tube, a plasma display, a rear projection type video projector, etc. may be used without being limited thereto.

[Effects of the Invention] As explained above, according to the present invention, the writing medium is formed of a translucent member, the display device is disposed at the rear thereof, and the writing medium can be moved along the display surface of the display device. Therefore, it is possible to realize an electronic whiteboard device with an extremely simple configuration that can immediately display previously prepared information and allow users to write on the writing medium as if adding to the information. Furthermore, since it is easy to add various conventionally known devices, it is possible to realize a very multi-functional electronic whiteboard device, and the industrial effect is extremely large.

[Brief explanation of the drawing]

FIG. 1 is a drawing schematically showing the electrical configuration and mechanical configuration of an electronic whiteboard device according to an embodiment of the present invention, and FIG. 2 is a front view of the electronic whiteboard device according to the present embodiment. 10 is a writing medium, 12 is an LED display, 14.1
6 is a guide roller, 18 is a feeding drum, 20 is a winding drum, 52.54 is an opening, 26 is a white board, 28 is a light source,
30 is a mirror, 32 is a lens, 34 is a light receiving element, 36 is a light receiving element peripheral circuit, 38 is a control circuit, 40 is a memory, 4
6 is a facsimile.

Claims (4)

[Claims] (1) A display device (12) that visually displays various information, a translucent writing medium (10) placed in front of the display device (12) on which characters, figures, etc. are written, and the writing medium Supporting means (14, 16, 18, 20, 5) for movably supporting (10) along the display surface of the display device (12)
2,54) An electronic whiteboard device comprising: (2) Reading means (26, 28, 30, 32, 34,
36) and its reading means (26, 28, 30, 32, 34, 36
2. The electronic whiteboard device according to claim 1, further comprising a storage means (40) for storing image information read by the electronic whiteboard (40) and image information displayed on the display device (12). (3) The electronic whiteboard device according to claim 2, further comprising printing means (46) for printing the image information stored in the storage means (40). (4) The electronic whiteboard device according to claim 2, wherein the image information stored in the storage means (40) is displayed on the display device (12).