JPH0327828Y2 - - Google Patents

Description

[Detailed description of the invention] (Technical field) The present invention is an electronic blackboard device that can write letters, figures, etc. according to the original on a blackboard used for meetings, meetings, etc. by reading the original with a sensor. It is related to.

(Technical background)
No. 58-44284 (Japanese Unexamined Patent Publication No. 59-171696) discloses a basic invention regarding an electronic whiteboard device.

The outline of the electronic whiteboard device disclosed in these patent applications is as follows. That is, there is a casing for a blackboard, and a sheet such as a Mylar film is supplied to the board portion of the blackboard by rollers provided in the casing. The rollers are located on both sides of the plate part, and the number of rotations is controlled by two sets, one for delivery and one for winding, so that the sheet is pulled properly and the sheet moves at a constant speed. The sheet stops in place and the person using this blackboard device for a meeting can
Text, figures, symbols, etc. are written on this sheet by hand using a water-based pen or the like. When it is desired to copy this written matter, the sheet is moved by a roller. An optical reduction lens system is installed in front of the roller, and the information on the sheet is
The information is read by a line sensor through a lens system as a line of information in the vertical direction. The signal from the line sensor is sent to a dot printing device, and dots are printed on recording paper column by column, like a facsimile. That is, drawn on a sheet of Mylar etc.
Characters, figures, etc. are printed and recorded in a reduced form on recording paper.

Therefore, by using this blackboard device, people holding a meeting do not have to transcribe what they have written on the blackboard into a notebook or the like, and the meeting can proceed efficiently. However, this blackboard device only records what is written on the blackboard in a reduced form.

(Purpose of the invention) The object of the invention is to provide this blackboard device with a function of automatically enlarging writing according to the manuscript.

(Structure of the invention) The gist of the invention is to provide an electronic blackboard device that optically reads and prints characters, figures, etc. written on a medium, including a writing head for writing characters, figures, etc. on the medium, and a manuscript. a document reading device that optically reads the document; a print control device that drives the writing head in accordance with the output from the document reading device; and a device that relatively moves the writing head and the medium. It is.

(Example) Hereinafter, an example of the present invention will be described according to the drawings. FIG. 1 is an external view of an embodiment of the electronic whiteboard device of the present invention. 1 is a housing. Reference numeral 2 denotes a plate portion covered with a sheet as a medium. In meetings, etc., sentences, figures, etc. are drawn on the sheet using a water-based pen or the like.
In this example, the text, figures, etc. on the manuscript are
This is the part that is automatically written down and displayed on the sheet. 3 is a drive section for the writing head. The writing head moves up and down within the writing head and taps the sheet in response to an electrical signal, thereby causing ink to adhere to the sheet, thereby writing. 4 is an operation switch section of this electronic whiteboard device. Reference numeral 5 denotes a document reading device that reads a document. The contents are similar to the reading part of a facsimile. That is, a document about the size of an A4 sheet is reduced line by line using an optical system, and the document is read while being sensed by a line sensor.

This signal is sent to the writing head via the control section, and in response to the signal, the writing head applies ink to a medium such as a sheet and performs writing.

FIG. 2 is a structural diagram showing the relationship among the roller, medium, and writing head. 7 is a winding roller.
8 is a motor that drives this roller. 9 is a feeding roller. 10 is a motor that drives this roller. 11 is a medium. This medium is a sheet of mylar film, fluorine film, or the like. These sheets blend well with water-based pen ink. Reference numeral 3 denotes a writing head drive unit, which performs writing by applying ink or the like onto the medium using the writing head. 12 is a roller for holding down the writing head.

FIG. 3 is an explanatory diagram of the writing head. Figure 3a
is a water-based pen method. In this case, the pen body 15 is driven by a magnetic switch 16 in response to an electric signal, and strikes the medium 11. This pen body 15
is moved up and down by a pulse motor and hits the medium 11 at a predetermined location using an electric signal to deposit aqueous ink in the form of dots. Three pen bodies 15 are prepared as shown in the figure, such as red R, blue B, and yellow Y. By selecting the pen body 15 using the operation switch section 4, the magnetic switch 16 is selectively driven to select a desired color among the three colors. It is possible to display it in writing. When the writing head moves up and down to write one line of writing, the roller moves the medium by one line of writing. Thereafter, by moving the writing head up and down again, the next row of ink dots can be deposited. After completing the movement of the medium for one board part, the text written on the manuscript,
A figure or the like is written on the medium using a water-based pen.
The above water-based pen method has been described as a method in which the writing head driver is fixed and writing is performed while the medium is moved by a roller. Conversely, it is also possible to write on one sheet of the medium by fixing the medium and moving the writing head drive section from side to side.

FIG. 3b shows the ribbon method. In this method, writing is performed by striking a ribbon containing water-based ink or the like at a predetermined location using a magnetic switch 16 or the like. By rotating the ribbon through the ink reservoir 17, it is possible to perform dot writing with a constant amount of ink attached at all times. By moving the magnetic switch 16 and the ink reservoir 17 up and down as a unit, one line of dots can be written. In this ribbon method as well, it is possible to adopt not only a method in which the writing head drive section is fixed and the medium is moved, but also a method in which the medium is fixed and the writing head drive section is moved.

FIG. 4 shows a circuit block diagram of one embodiment of the present invention. Incidentally, the optical system means for reading characters, figures, etc. written on the medium and the printing device for printing dots on the recording paper are the same as those in the prior art, and are not particularly illustrated. 21 is a document reading section. Here, the document is moved by rollers. 22 is an optical system such as a reduction lens. 23 is a sensor array circuit section such as a solid-state imaging device. The signal obtained here is sent to the print control unit 25 via the control unit 24.
The magnet switch circuit 26 is driven. The vertical movement of the writing head is controlled by a motor drive unit 27.
This is done by driving a pulse motor.
Note that reading the original can also be done by demodulating the transmission signal via the modem 28 via a telephone line or the like as shown in the figure, thereby writing on the medium using a facsimile signal or the like from a remote location.

(Effect of the invention) As explained above, according to the invention, it is possible to write on the electronic blackboard according to the manuscript. Therefore, it contributes to the efficiency of meetings, etc. or,
Of course, it is also possible to use the present invention in combination with a conventional electronic blackboard device that copies handwritten notes on a conventional blackboard.

[Brief explanation of drawings]

Fig. 1 is an external view of an embodiment of the present invention, Fig. 2 is a structural diagram around the roller, Fig. 3 is an explanatory diagram of the writing head, and Fig. 4 is a circuit block diagram of an embodiment of the invention. . DESCRIPTION OF SYMBOLS 1... Housing, 2... Plate body, 3... Writing head drive unit, 4... Operation switch unit, 5... Original reading device, 7
...Take-up roller, 8...Motor, 9...Feeding roller, 10...Motor, 11...Medium, 12...Roller, 15...Pen body, 16...Magnetic switch, 17...Ink reservoir, 21...Document reading section, 22
...Optical system, 23...Circuit section, 24...Control section, 25...
Printing control unit, 26...Magnetic switch circuit, 2
7...Motor drive unit, 28...Modem.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) In an electronic blackboard device that irradiates light onto a medium on which characters, figures, etc. are written, photoelectrically converts the reflected light, and prints and records on recording paper according to the electrical signal. , a writing head for writing characters, figures, etc. on the medium; a document reading device for optically reading a document; a print control device for driving the writing head in accordance with an output from the document reading device; and the writing head. and means for relatively moving said medium. (2) The electronic blackboard device according to claim 1, wherein the writing head writes one line while moving on the medium. (3) The writing head is installed at a predetermined position on the housing, and each time the writing head finishes writing one line,
The electronic whiteboard device according to claim 1, which moves the medium to the next line of writing. (4) The electronic blackboard device according to claim 1, wherein the writing head writes by striking the medium with an electric signal using a water-based pen. (5) The electronic blackboard device according to claim 1, wherein the writing head is composed of water-based pens of a plurality of colors and allows a desired color to be selected and written on. (6) The electronic whiteboard device according to claim 1, wherein the writing head writes by striking the medium with an electrical signal using a ribbon containing ink.