JPS6256000B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Technical Field) The present invention relates to an electronic blackboard device that can print texts and figures on a blackboard used for meetings, meetings, etc.

(Background technology) In conventional meetings, briefing sessions, meetings, etc., the contents of the meeting are written on a blackboard, and all participants transcribe information such as matters decided as the progress progresses, figures, etc. into notebooks. , or by copying the notes of one transcriber, which resulted in the following drawbacks.

(1) All or some of the transcribers are unable to concentrate in meetings or meetings.

(2) It takes time to proceed with the meeting to match the writing speed of the transcriber.

(3) Transcriber's errors occur and communication is insufficient.

(4) There is proofreading by the transcriber, and copies are not readily available.

As a solution to these problems, the
No. 56-40341 discloses a blackboard/copying device. The device includes a flexible belt-shaped sheet that can partially constitute a writable flat surface, a drive device that circulates the sheet, an exposing section, a developing section, and a fixing/drying section. A photosensitive paper feeding device of the copying section is connected to the sheet driving device so as to be driven in synchronization with each other.

However, the device disclosed in the above publication has the following problems.

First, it is necessary to install the copying section so that the photosensitive paper is positioned on the optical path, which limits the installation location of the copying section.

Second, the optically read written information is exposed to light.
Since it has a developing section and a fixing/drying section for developing and fixing, the copying section becomes large.

Thirdly, in order to expose the optically read written information onto the photosensitive paper, it is necessary to drive the sheet feed and the paper feed synchronously. In other words, paper feeding must be performed at a constant speed corresponding to sheet feeding.
Therefore, motor control is complicated.

Fourthly, it is time consuming because it is necessary to always write on a predetermined side of the sheet and to circulate it once for each copy. Therefore, in order to make multiple copies, it is necessary to circulate the sheets accordingly. Also,
At this time, it is impossible to write, and the progress of the meeting comes to a halt. Furthermore, in order to write on a new writing screen, the current writing screen must be erased (in other words, there is only one writing screen), making the progress of the meeting inefficient.

Fifth, since the sheet circulates and the drive system has to be driven a lot, it is easily damaged and has a short lifespan.

(Problem of the Invention) Therefore, the first object of the present invention is to provide an electronic blackboard device that allows the printing section to be installed at any location, is small and inexpensive, and is capable of efficiently performing writing and printing operations. With the goal.

In addition to the above-mentioned object, the present invention also has an object to enable instant copying of a plurality of sheets when necessary without repeating sheet movement, and to enable writing during this time.

In addition to the above-mentioned first object, the present invention also makes it possible to send read print data to a remote location and print it at a remote location, and also to receive print data from a remote location and print it. The purpose is to streamline meetings in this way.

(Structure and operation of the invention) First, FIG. 1 shows one of the embodiments of the invention. 1
2 is a housing, 2 is a sheet on the blackboard surface, 3 is a concave tray for placing a felt pen, etc., 4 is an operating section of the device, 5 is a tray for printing paper, 6 is a foot of the device, and 7 is a caster. FIG. 2 is a diagram showing the internal configuration of the apparatus shown in FIG. 1. The internal structure of the device can be roughly divided into a blackboard sheet, a reading section, and a printing section.
In the figure, 2 is a sheet on a blackboard surface, 8 is a timing belt, 9 is a roller, 11-1 is a sheet delivery drum, 11-2 is a sheet winding drum, 11-1
a is a shaft that directly connects the sending drum of 11-1 and the motor of 12-1, 11-2a is a shaft that directly connects the winding drum of 11-2 and the motor of 12-2, and 12-1 is a shaft that directly connects the motor of 12-2. 12-2 is a motor that drives the take-up drum 11-2, 13-1 is a pinch roller that moves the sheet 2 at a constant speed, and 13-2 is a motor that drives the winding drum 11-2.
14 is a deceleration pulley, 15-1 is a deceleration pulley, 15-2 is a shaft that directly connects a motor 16 and a pulley 15-1, 16 is a shaft that directly connects a pulley 15-1, This is a motor that moves the sheet at a constant speed. Each of the constituent members described above constitutes a feeding section that feeds out the sheet 2 in its longitudinal direction and provides a portion of the sheet 2 as a writing screen surrounded by the housing 1. 17 is a fluorescent lamp as a light source, 18 is a light beam, 19 is a lens, 20 is an image sensor, and 21 is a circuit section to which the 20 image sensors are attached. Components 17 to 2 explained above
Reference numeral 1 constitutes a reading section that optically reads written information written on the sheet 2, converts it into a digital electric signal, and outputs it. 22 is a printing device for printing, 23 is printing paper, 24 is 21
This is a flat cable that connects the board and 22 printing devices. The structural members 22 to 24 described below are
It constitutes a printing section that prints and records on the printing paper 23 according to electrical signals from the reading section.

The operation of FIG. 2 will be explained. The drum 11-1 and the drum 11-2 are arranged in parallel, and the drum 11-1
Two sheets are wound around drums No. 1 and 11-2. The drum 11-1 is directly connected to the motor 12-1 by the shaft 11-1a. Similarly, the shaft 11-2a is directly connected to the drum 11-2 and the motor 12-2. Also 2
The sheet is sandwiched between the drums 11-1 and 11-2 by the pinch roller 13-1 and the roller 9, and a predetermined pressure is applied to prevent the sheet 2 from slipping, allowing it to be sent out at a constant speed. It's becoming like that. This 13-1 pinch roller is driven by 16
This is done by a motor. The rotation of the motor 16 is transmitted to the pulley 15-1 via the shaft 15-2, decelerated by the pulley 14 via the timing belt 8, and then transmitted to the pulley 13 via the shaft 13-2.
-1 is transmitted to the pinch roller.

12-1 by the signal from the operation section 4 in Figure 1.
The motor 1, the motor 12-2, and the motor 16 rotate simultaneously, and two sheets are sent out from the drum 11-1 and wound onto the drum 11-2. The speed of the second sheet at this time is determined by the rotational speed of the sixteen motors. The sentences and figures written on the writing screen of the sheet 2 move downward, and before being wound up on the drum 11-2, the light illuminated by the fluorescent lamp 17 becomes the ray 18 and passes through the lens 19 to the 20
image sensor. The screen projected by these 20 image sensors is converted into an electrical signal as a single line in the horizontal direction, and is converted into an electrical signal in the vertical direction synchronized with the feeding speed of the 2 sheets. The data is sent from the circuit section 21 to the printing device 22 via the flat cable 24. The printing device No. 22 prints on predetermined printing paper No. 23 based on the electric signal from the screen. The above operation is an explanation for executing screen printing.
Also, if you need to look again at the writing screen that was wound up on the drum 11-2, or if you want to make additional notes, you can send out the sheet 2 in the opposite direction.
You can wind, stop, and add additions and corrections. Then, it is possible to print again by the same operation as described above. It is also wound around a drum 11-2, and when printing is completed, the text and figures on the sheet 2 are erased. In this case, in order to wind the sheet 2 from the drum 11-2 to the drum 11-1, a signal is sent from the operation section 4 to the motor 12-1 and the sheet 1.
Send to motor 2-2 and motor 16. This allows you to stop sending out one screen at a time and erase it with a blackboard eraser. The second sheet is made of metal, inorganic nonmetallic material, or organic nonmetallic material,
For example, by using a material such as mylar film or fluorine film, it can be easily erased by friction. It is also possible to use ink that can be erased by irradiation with light such as ultraviolet rays.

Further, FIG. 3 will be explained as a second embodiment.

In Figure 3, 25 is an endless sheet, 25-1
25 is the sprocket hole in the endless seat, 26 is the motor, 27-1, 27-2 are the drums, and in Fig. 5, 27-2a is the sprocket, the second
In this embodiment, the structure is simplified. Second
The operation of the embodiment 2 is based on the signal from the operation section 4.
The motor 6 rotates to rotate the drum 27-2 via the shaft 11-2a. This 27-2
The drum has a sprocket 27-2a as shown in FIG. 5, which is inserted into the hole 25-1. This provides a mechanism that prevents the drum 27-2 and the sheet 25 from slipping.

In FIG. 3, the 25 sheets are endless, so the operation is the same as in FIG. 2 except that the number of writing screens provided is small.

Next, a third embodiment will be described. 4 and 5 are examples in which the number of writing screens provided is increased from 25 endless sheets in FIG. 3. The number of writing screens provided is increased by arranging a large number of 28 rollers and increasing the total length of the endless sheet.The operation is similar to that shown in Fig. 3, and the 25 sheets are rotated at a constant speed by the rotation of the 26 motors. Move with. 25 sheets pass through the 27-2 drum
It reciprocates between rollers 8 and reaches drum 27-2 via drum 27-1. Other operations are the same as in FIG. 2.

Next, a fourth embodiment will be described. This embodiment is an example of a device with a memory function and an electronic whiteboard device with a communication function. FIG. 6 shows its block diagram.

In the explanation of the names in FIG. 6, 50 is a roll of 23 printed papers, 51 is a roller that presses 23 printed papers against a printing head 52, and 52 is a printing head. As the printing head, for example, a thermal head for recording on thermal paper is used. The names of other parts are indicated on the block diagram.

Next, the operation shown in FIG. 6 will be explained. A command is transmitted to the motor drive circuit via the control section by a signal sent from the operation section 4, and the drum 11-1, drum 11-2, and pinch roller 13-1 are activated by the operation explained in FIG. It rotates and the second sheet is fed at a constant speed. The sentences, symbols, and figures written on the writing screen of the second sheet are illuminated by 17 fluorescent lights, passed through 9 lenses, and are imaged on 20 image sensors. The light is converted into an electrical signal by an image sensor 20, and the electrical signal is assembled by a circuit section 21 according to a predetermined method, and is input to an encoding/decoding circuit section. Here, the analog signal is encoded into a digital signal and sent to an external line via the modem and line controller. Further, signals input from an external line are input to an encoding/decoding circuit unit via a line control unit and a modem, where the digital signals are converted to analog signals and input to the print control unit. The input signal is converted into a signal for driving the 52 print heads and sent to the 52 print heads. The control section is
In accordance with this signal, the motor drive unit is driven to send out 23 sheets of paper from a roll of 50 sheets of paper using a roller 51, and the print head 52 prints on the 23 sheets of paper. The above is an explanation of the operation when the communication function is added.

Next, the operation when a storage device is added will be explained. Similar to the operation when the communication function is added, the optically read image is input from the circuit section to the storage device via the encoding/decoding circuit section.
Here, the information is written and stored in the memory element according to a fixed procedure. This accumulated information can be used as needed4
A signal from the operating section is transmitted to the storage device via the control section, and appropriate information is sent from the storage device to the print control section. With this, it is possible to print on 23 printing papers in the same way as with the communication function described above. Further, a device having only one of these functions or a device having all of these functions is also possible.

As explained above, in the first embodiment, since one sheet is wound around a drum, the number of writing screens provided is large.

2 Equipped with a printing device so you can print instantly when needed.

3. You can correct and add text and figures written on the writing screen of the sheet.

4 Text and figures that have been printed can be easily erased, so they can be used over and over again.

As described above, there are the following advantages.

1. Since there is no need to transcribe from the blackboard during meetings and meetings, everyone can participate and can concentrate on the meetings and meetings.

2. Meetings and meetings progress quickly because there is no need to transcribe from the blackboard.

3. Since there is no transcription from the blackboard, transmission due to typographical errors can be prevented.

In the second and third embodiments, since the sheet structure is an endless sheet rather than a winding structure, there are the following advantages.

(1) The structure is simple.

(2) Manufacturing costs are low.

(3) The external shape can be made thinner.

The fourth embodiment has the following advantages because a communication function and a storage device are added.

(1) Sentences written on the writing screen of the external sheet,
Symbols and figures can be converted into electrical signals and sent, received from outside, and printed.

(2) Sentences, symbols written on the writing screen of the sheet,
You can store shapes, recall them when needed, and print the required number of sheets.

(Effects of the Invention) As described above, according to the present invention, there is provided a writing medium having an elongated writing surface that can be written on with a writing instrument, and a writing medium that is fed out a predetermined amount in the longitudinal direction, and which can be freely moved in the longitudinal direction of the writing surface. A feeding section that provides a portion of the screen as a writing screen, a reading section that collects reflected light from the writing medium, converts it into a digital electrical signal, and outputs it, and prints and records on the recording medium according to this electrical signal. Since a printing section is provided, the following effects can be obtained.

(1) Since image information is sent to the printing section as an electrical signal, the printing section can be placed at any position relative to the reading section.

(2) Printing is performed based on electrical signals, and there is no need to use a developing section or fixing/drying section as in conventional devices, so the device becomes smaller.

(3) Since sheet feeding and printing paper feeding can be driven asynchronously, motor control for driving becomes easy.

(4) Since multiple writing screens can be provided, it is not necessary to erase the current writing screen to obtain a new writing screen. Therefore, writing efficiency is improved.

(5) During the printing process, only one writing screen needs to be sent without circulating the writing medium once, so the efficiency of the printing process is high.

Further, according to the present invention, in addition to the above-mentioned components, a storage section for storing electrical signals from the reading section is provided, so that in addition to the above-mentioned effects, the following effects can be obtained.

(6) Since the electrical signal from the reading unit is stored in the storage unit, it is possible to make multiple copies by feeding the writing screen once, without having to circulate the sheets each time you copy as in the past. , during this time you can write on a new writing screen. Therefore, writing work and printing processing can be performed extremely efficiently. Furthermore, since the electrical signals can be read out from the storage section and printed when necessary, printing can be performed even after the handwritten information has been erased.

Furthermore, according to the present invention, in addition to the above-mentioned writing medium, feeding section, reading section, and printing section, a communication device for transmitting an electrical signal from the reading section to a remote location or receiving a signal transmitted from a remote location is provided. In addition to the effects (1) to (5) above, the following effects can be obtained.

(7) Read print data can be transmitted to a remote location and printed at the remote location, and print data can be received from a remote location and printed.

As described below, when the present invention is used for meetings, etc., it can be expected to further streamline meetings and save labor.

[Brief explanation of the drawing]

1 and 2 are structural examples of an embodiment of the present invention, FIG. 3 is another embodiment of the present invention, FIG. 4 is yet another embodiment of the present invention, and FIG. 5 is a structure example of the embodiment of the present invention. FIG. 6, an enlarged view of the sprocket section, is a block diagram of the electrical circuit of the device according to the invention. 1...Housing, 2...Seat, 3...Pen tray,
4...Operation unit, 5...Print paper receiver, 6...Feet, 7
...caster, 8...timing belt, 9...
Roller, 11-1...Drum, 11-2...Drum, 12-1...Motor, 12-2...Motor,
13-1...Pinch roller, 14...Pulley, 1
5-1...Pulley, 16...Motor, 17...Fluorescent lamp, 18...Light beam, 19...Lens, 20...
Image sensor, 21...Circuit unit, 22...Printing device, 23...Printing paper, 24...Flat cable, 25...Endless sheet, 26...Motor, 27-1...Drum, 27-2... …drum,
28...Roller, 50...Printing paper roller, 51
...Roller, 52...Printing head.

Claims (1)

[Scope of Claims] 1. A writing medium having an elongated writing surface that can be written on with a writing instrument; a writing medium that is fed out a predetermined amount in its longitudinal direction;
a feeding section that provides an arbitrary part of the writable writing surface in the longitudinal direction as a writing screen; a light source that irradiates the writing medium; a lens that collects reflected light from the writing medium; a reading section comprising a sensor that converts reflected light into an electrical signal and a circuit section that converts the output signal of the sensor into a digital electrical signal; and printing on a recording medium according to the electrical signal output from the reading section. and a printing section for recording, conveys the writing screen of the writing medium to the reading position of the reading section, provides another writing surface of the writing medium as a new writing screen, and simultaneously outputs from the reading section. An electronic whiteboard device characterized in that it prints and records on a recording medium according to an electric signal sent to it. 2. The electronic whiteboard device according to claim 1, wherein the sensor is an image sensor. 3. A writing medium having an elongated writing surface that can be written on with a writing instrument, and feeding out a predetermined amount of the writing medium in its longitudinal direction;
a feeding section that provides an arbitrary part of the writable writing surface in the longitudinal direction as a writing screen; a light source that irradiates the writing medium; a lens that collects reflected light from the writing medium; a reading section comprising a sensor that converts the reflected light into an electrical signal and a circuit section that converts the output signal of the sensor into a digital electrical signal; a storage section that stores the electrical signal output from the reading section; and a printing unit that prints and records on a recording medium according to an electric signal output from the storage unit, and conveys the writing screen of the writing medium to the reading position of the reading unit, and reads other writing on the writing medium. provide the surface as a new writing screen, simultaneously store an electrical signal output from the reading section in the storage section, and then print and record it on a recording medium according to the electrical signal output from the storage section. Characteristic electronic whiteboard device. 4. A writing medium having a long writing surface that can be written on with a writing instrument;
a feeding section that provides an arbitrary part of the writable writing surface in the longitudinal direction as a writing screen; a light source that irradiates the writing medium; a lens that collects reflected light from the writing medium; a reading section comprising a sensor that converts the reflected light reflected by the sensor into an electrical signal and a circuit section that converts the output signal of the sensor into an electrical signal in digital format; a communication device that receives an electrical signal transmitted from a remote location; and a printing section that prints and records on a recording medium according to the electrical signal output from the reading section or the electrical signal received by the communication device, While conveying the writing screen of the writing medium to the reading position of the reading section, providing another writing surface of the writing medium as a new writing screen, and receiving an electric signal output from the reading section or received by the communication device. An electronic whiteboard device that prints and records on a recording medium according to an electrical signal, or transmits an electrical signal output from the reading section to a remote location using the communication device.