JP2003308163A - Electronic pen with erasure function - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an electronic pen and an information processor in which data on paper and computerized data are erased with consistency in the electronic pen for input for recording information of handwriting by the pen as electronic data. <P>SOLUTION: In the electronic pen provided with a sensor 106 for reading a position code printed on the paper, a processing means 107 for calculating position information of a portion where the tip of the pen touches the paper, and a means 109 for sending electronic data representing a read moving locus of the tip of the pen to the information processor, the electronic pen has an ink cartridge 103 for holding an ink 100 which reflects most of visible beams but can read the position code, and the locus of the tip of the pen sticking the ink on the paper is read and transmitted to the information processor together with an identification code representing erasure data. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an input electronic pen for recording handwritten information by a pen as electronic data, and an information processing apparatus which is connected to the input electronic pen to process data input from the electronic pen. In particular, the present invention relates to a technique for reflecting a process of making data written on paper invisible in digitalized data.

[0002]

2. Description of the Related Art With the spread of electronic devices and networks,
Information that was once input and managed by stationery such as paper and pens has now been input and managed by electronic means. As a technique for generating electronic data while adhering ink to a paper surface and inputting the electronic data to an information processing device, for example, WO00
/ 73981 (prior art 1). In this technique, carbon black that absorbs infrared light is used to print a position code, which is represented by a combination of the size of the symbol mark and a combination of the deviation direction of the symbol mark from the grid point of the raster line, on the paper surface. The electronic pen has a diode that emits infrared light and a sensor that responds to the reflected light of infrared light, and emits infrared light when the pen tip of the electronic pen touches the paper surface and the writing pressure sensor operates. Then, the position code is calculated from the infrared light image of the reflected light to obtain the coordinates of the pen tip on the paper surface, and the pen movement trajectory data is generated.

[0003]

Although the above-mentioned prior art 1 shows that freehand data is input by pen input, it does not consider correcting and erasing the input data. Once input to the information processing device, data can be edited or corrected by instructions from a keyboard, etc., but the pen input reduces the convenience of the user, and the erased data is electronic data. Only the data described on the paper will remain as it is.

A technique for erasing the information written on the whiteboard is to detect the movement locus of the eraser and erase the data of the movement locus, which is WO01 / 168.
72 (Prior Art 2). Prior art 2 is a technique related to a whiteboard, and it is not possible to leave a trace of the entered data itself or the fact that it has been edited.

An object of the present invention is to provide information printed or written on a paper surface when information is printed or written on a paper on which a position code is printed and data of the information is digitized. An object of the present invention is to provide an electronic pen with an erasing function and an information processing apparatus related to the electronic pen, which can maintain consistency with the data of the corresponding digitized portion.

[0006]

The above object is to provide an electronic pen that reads a position code while the pen tip of the electronic pen is touching to generate movement trajectory data of the pen tip and transmits the movement trajectory data to the information processing apparatus. Even if it is applied on the position code, a pen tip for applying the correction ink whose position code can be read by the position code reading means of the electronic pen to the paper surface is provided, and the pen is scanned to write on the paper surface. This is achieved by making the data invisible and notifying the information processing device of the invisible area as well so that both the actual data on the paper and the electronic data are corrected.

According to the above means, the transition of the input order of the electronic pen can be managed unlike the data capturing device such as the scanner, so that the correction on the electronic data can be managed, and the correction on the paper can also be performed. Can be grasped.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described in detail below with reference to the drawings.

FIG. 1 is a block diagram of an electronic pen with an erasing function of the present invention. The electronic pen with an erasing function is a pen tip 101 that functions to contact the paper surface to adhere ink to the paper surface like an ordinary pen, and an ink cartridge 1 that stores ink.
03, an ink cartridge 103, and a pen core 102 that stores ink and also serves as a path for ink from the ink cartridge to the pen tip. These are filled with ink 100 made of a pigment that transmits infrared light and reflects the entire visible wavelength band. Generally, a pigment having a special function is called a functional pigment, and many functional pigments have been discovered and developed. The required amount of this ink oozes from the pen tip when the pen tip touches the paper surface.
The portion covered with the ink 100 looks white to the human eye on the paper surface, and it can be considered that nothing is printed on the portion.

Further, the electronic pen with an erasing function detects a writing pressure sensor 104 for detecting a state in which the pen tip 101 is pressed against the paper surface by a writing operation on the paper surface, a diode 105 for emitting infrared light, and infrared light. A sensor 106 for sensing, a video processing device 107 for processing a video sensed by the sensor, and a data management device 10 for managing data such as a movement path of a pen tip.
8. A data transmission / reception device 109 for transmitting / receiving necessary data to / from the information processing device is provided. Only when the writing pressure sensor detects the writing pressure, the sensor senses the reflected light of the infrared light emitted by the diode to obtain an image, and the image processing device calculates the coordinates on the paper surface of the pen tip. , In the data management device. The stored data is transferred to the information processing device by the data transmitting / receiving device as needed. Battery 11
0 is for supplying electric power to a device that requires electric power, which may be exchangeable or rechargeable. Although not shown, the battery 110 and a device to which power is supplied are connected by a power supply line, and the sensor 110 and the image processing device 10 are connected.
7, the data management device 108, the data transmission / reception device 109, etc. are connected by an internal bus for exchanging electronic information. The devices forming these electronic pens with an erasing function are housed in a cylindrical case 111 that forms the appearance of the pen.

2, FIG. 3 and Table 1 show the relationship between the ink pigment of the ink 100 and visible light and infrared light.
FIG. 2A is an optical characteristic of the pigment of the ink of the electronic pen with an erasing function. The reflectance of this pigment is high in most wavelength bands of visible light and low in the wavelength band of infrared light. The transmittance is low in the visible wavelength band and high in the infrared wavelength band. FIG. 2B shows the optical characteristics of pigments printed in color.
The reflectance of this pigment is high in a specific wavelength band of visible light and low in a wavelength band of infrared light. Although the transmittance is high in the wavelength band of infrared light, it may be low or high in the wavelength band of visible light. The transparency is high when the visible light transmittance is high. Figure 2 (c)
Is the optical property of the pigment that prints the position code. The reflectance of this pigment is low in the wavelength band of infrared light, but may be low or high in the wavelength band of visible light. If the reflectance is low in most wavelength bands, the position code will appear dark. The transmittance is low in the wavelength band of infrared light, and may be low or high in the wavelength band of visible light.

FIG. 3 shows an attachment pattern of each pigment printed and attached on the paper 203. Eight types of combinations of an erasing pigment 200 for ink of an electronic pen with an erasing function, a pigment 201 for printing with another pen or printer, and a pigment 202 for printing a position code are printed on paper 203 and printed. ing. The pigments 201 and 202 transmit infrared light. The pigment 203 absorbs infrared light. In addition, the pigment 20
It is assumed that the portion covered by 1 looks white to human eyes and that portion is not printed or printed. The arrow 205 in FIG. 3 represents reflected light with respect to these eight layer configurations, and this reflected light is imaged by the human eye (corresponding to a visible light sensor) and an infrared light sensor. obtain. The state of this video is summarized in Table 1.

[0013]

[Table 1]

As summarized in Table 1, the layer constitutions (1), (3), (5) and (7) in which the upper portion is covered with the erasing pigment appear printed or unprinted to human eyes. .
Among these, (1) and (5) correspond to the fact that this printing is erased because the printing pigment is in the lower layer. On the other hand, the layer configurations (1), (2), (3) and (4) sense reflected light of infrared light without being affected by the upper layers, but (5), (6), (7) and (8)
Does not sense the reflected light of infrared light.

That is, if the pigment of the ink of the electronic pen with an erasing function transmits infrared light and reflects it in almost all wavelength bands of visible light, and the electronic pen has an infrared light sensing sensor, If the position code for knowing the coordinates of the paper surface is represented by the pigment that absorbs infrared light, the coordinates at which position on the paper surface when the pen tip is in contact with the paper surface is erased are used as the coordinates. You can get it, or you can erase the actual print.

Prior art 1 shows an example of a method of expressing a position code for knowing the coordinates of the paper surface with a pigment that absorbs infrared light, and an example of a method of calculating the coordinates at that time.
Here, a method of representing by the deviation direction of the symbol mark from the grid point of the raster line will be briefly described with reference to the drawings.

In FIG. 13, for the grid points of the raster line,
The following shows how to express the deviation direction of the symbol mark. A horizontal raster line 1301 and a vertical raster line 1302
The points at which and intersect are referred to as grid points 1303. With respect to this lattice point, the symbol marks are upper 1310, lower 1311,
It is arranged on either the right 1312 or the left 1313, and both symbol marks are on the raster line. The amount of deviation from the grid point is constant in any direction, but it must be smaller than the raster line interval. Here, the values a, b, c, and d are assigned to the top, bottom, right, and left, respectively, depending on the direction of the shift.

FIG. 14 shows an arrangement relationship between the raster line and the symbol mark when the area is cut out in a certain size.
The area in the example in the figure includes four raster lines in each of the horizontal and vertical directions, and when reading the values of the symbol marks in the row direction from the top, V = "acda, cbda, bcda, acda" position code Get V. At this time, a certain function G is used to convert to the central coordinates [X, Y] 1401 of this region by [X, Y] = G (V). In the prior art 1, the inverse function F of the function G is used. hand,
V = F (X, Y) is calculated for the value of the coordinates [X, Y] on the paper, and the symbol mark is laid out in advance on the entire paper according to the calculation result. The symbol mark is printed with carbon black as described above.
Raster lines do not need to be printed.

FIG. 15 shows a paper surface on which a position code to be printed in advance, a portion to be printed in advance, and a portion handwritten by an electronic pen are combined.

The synthetic paper surface 1500 is divided into a layer P1501 of a position code to be printed in advance, a layer Q1502 of a portion to be preprinted, and a layer R1503 of a portion handwritten by an electronic pen. Only the layer P has a symbol mark that absorbs infrared light, and the layers Q and R transmit infrared light. When writing the portion of layer R on the paper surface on which the layers P and Q are printed in advance using the electronic pen of Prior Art 1, the electronic pen seems to have extracted the symbol mark that absorbs infrared light. An image of only the layer P is obtained. The image is a small area centered on the pen tip, not the entire page. This narrow area must be large enough to get the position code and coordinates. The electronic pen can obtain continuous data of the coordinates of the pen tip based on continuous images of the layer P. As a result, the reproduction of the continuous data of this coordinate is the handwritten portion of the layer R.
That is, the electronic pen of the related art 1 can obtain the electronic data of the layer R without being affected by the layer Q of the portion to be printed in advance. Furthermore, for layer Q, if electronic data for the coordinates on the paper surface are known, layer Q and layer R
It is also possible to obtain electronic data obtained by combining and. Thereby, for example, it is possible to partially cut out the continuous data “Suzuki” of the layer R described in the “name field” of the layer Q.

FIG. 4 shows an information processing apparatus 1 which performs wireless communication with the above-mentioned electronic pen, processes received data, and stores, displays, prints, and the like. In the information processing device, a pen input management program 11 that exchanges data with an electronic pen and processes received data is stored in the hardware 10. Since this program is usually stored in a storage medium such as a CD-ROM for transactions, the storage medium read / write device 9 reads the program stored in the storage medium and stores it in the hard disk 10. The pen input management program 11 stored in the hard disk 10 is sequentially read out to the main memory 5 and is the subject that the CPU 4 sequentially interprets and executes. The information processing apparatus 1 wirelessly communicates with an electronic pen to exchange data with a pen interface 3, an input device 7 such as a keyboard, and a communication interface 8 to control exchange of data with a communication line such as a LAN. A display device 2 for displaying data received from the electronic pen, and a controller 6 for controlling data exchange between the devices are provided. The data transmission / reception between the information processing apparatus and the electronic pen may be wired or wireless, and may be networked in the middle, or another information device may intervene.

FIG. 5 shows a structural example of main data when the data transmitting / receiving apparatus transmits electronic data to another information processing apparatus,
An example of the locus of the pen tip on the paper is shown. Main data 50
0 is composed of a header section 502 and a data section 503. The header section has an identifier 501 indicating that the electronic pen has an erasing function. In the example of FIG. 5A, the value is 0.
And The data in the data section is the position coordinates [X,
Y] time-series data, and the locus 504 on the paper surface of the pen tip in the example of FIG. 5B indicates that it has advanced in the direction of arrow 505. In addition, the locus on the paper surface passes infrared light,
It is drawn with an ink that contains a pigment that reflects most of the visible wavelength range. To human eyes, the corresponding part seems to be covered with white ink.

The time sampling interval of time series data is
It can be fixed or irregular. Unlike a scanner, an electronic pen is digitized as a time series, so it is possible to know even in what order the user erased the printing on the paper.

FIG. 6, FIG. 7 and FIG. 8 show examples of operations in which writing and erasing are actually performed on the paper surface using the electronic pen with an erasing function of the present invention and the electronic pen for printing. FIG. 6 shows the transition of the state of being actually written on the paper surface (ink adhesion state on the paper surface), FIG. 7 shows data sent from the electronic pen to the information processing device in each scene, and FIG. 8 shows the final paper surface. An example of an image display of the electronic data that has been subjected to the combining process and the state of FIG. Ink pigments for printing electronic pens transmit infrared light and reflect (or absorb) part of the visible wavelength range.
It is perceived by the human visual sense to be colored, and it is perceived that there is a writing on the paper on that part. The ink pigment of an electronic pen with an erasing function transmits infrared light and reflects most of the visible light wavelength band, and it is perceived by the human eye as white, and that part is erased to the paper surface. It is recognized that there is a dent.

6 and 7, (a) before correction and (c)
Corrected figure is data input by electronic pen for printing, (b)
The figure after erasing is an example of data input by an electronic pen with an erasing function. In the initial input, the user enters "Suz
It is assumed that "uki" is entered, "25" is entered in the age column, and a circle is added to the man in the gender column. After this, the user noticed the mistake in the input and erased "5" entered in the age field,
Corrected as "6".

At this time, the user first makes an initial input with the electronic printing pen. A printed portion on the paper surface by the entry at this time is 601 and a display 701 is continuous electronic data of the position information of the locus which is handled by the electronic pen and transmitted to another information processing apparatus. The electronic data of the position information includes information on the identifier of the printing electronic pen (for example,
The identifier value includes 1). 601 and 701 are
The display is the same.

Next, the user erases by using the electronic pen with an erase function. The printed portion on the paper surface by the entry at this time is covered with white at the position where "5" is entered, as in 602, and it appears to the human eye as if it was erased. Further, the position information of the locus which is handled by the electronic pen and transmitted to another information processing device can be displayed by continuous electronic data.
02. The electronic data of the position information includes information on the identifier of the electronic pen with an erasing function (for example, the value of the identifier is 0). The display of 601 is a superposition, but 7
The display of 01 is only the difference of the deletion track.

Finally, the user performs correction input with the electronic printing pen. The entire printed portion on the paper surface filled in at this time is 603, and “25” in the age column is “2”.
It seems to have been corrected to 6 ". Further, reference numeral 703 denotes a continuous electronic data display of the position information of the locus which is handled by the electronic pen and transmitted to another information processing apparatus. The electronic data of the position information includes the information of the identifier of the printing electronic pen (for example, the value of the identifier is 1). The display of 603 is an overlay, but the display of 703 is only the difference of the loci of the additional input “6”.

The display 801 of FIG. 8A uses the electronic data received from the electronic pen in the information processing apparatus, and the pen input management program 11 synthesizes all the received data to the display apparatus 2. This is the output result.
The information processing apparatus 1 is shown in FIG.
(A) Locus data from the printing electronic pen, (b) Locus data from the erasing function-equipped electronic pen, and (c) Locus k data from the printing electronic pen are sequentially received and sequentially stored in the main memory 5. To do. The respective data are read and combined in the order of order to generate the display image of FIG. 8a. When synthesizing with an information processing device, attention must be paid to the order relation of each scene. If the order relation is wrong, the combined result will be different and will not match the final result on paper. Note that, as shown in FIG. 8B, the electronic data preprinted at the coordinates on the paper surface may be read from the form data 13 and combined and output. The electronic data after composition can be regarded as having “26” entered in the name field from the electronic data.

As described above, by using the electronic pen with the erasing function of the present invention, not only can the printed portion of the paper surface be erased and corrected by the human eye, but also the corresponding portion can be erased and corrected in the electronic data. To be done. Since the electronic pen of the present invention is digitized as a time series unlike a scanner, it is possible to manage what kind of correction process the user has made and the final entry by the information processing device. In this embodiment, ink is overpainted on the wrong place as the erasing electronic pen, so that there is an effect that it is possible to know where the correction was made even on the actually written paper surface.

In the above-mentioned embodiment, the electronic pen for printing and the electronic pen with an erasing function are described as being separately provided, but it is also possible to integrate these. The structure of an electronic pen for printing and erasing will be described with reference to FIG. Note that, in FIG. 10, only parts having different features from FIG. 1 are illustrated. The electronic pen has a device structure including a nib 101, a pen core 102, and an ink cartridge 103 for erasing, and these are made of a pigment that transmits infrared light and reflects the entire wavelength band of visible light. Ink 100 is filled. On the other hand, for printing,
It has a device configuration including a pen tip 1001, a pen core 1002, and an ink cartridge 1003, and these are filled with an ink 1000 made of a pigment that transmits infrared light and reflects a part of a wavelength band of visible light. . Further, the thickness of the pen tip may be different for printing and erasing, and in general, the ease of use is when the erasing pen tip is thick. Two device configurations for printing and erasing are selected from the case 111 to the pen tip 10 by the selection mechanism 1011.
Either 1, 1001 can be selected to project outward. Depending on this selection state, the setting of the identifier indicating the selected pen tip in the data management device 108 is changed, and this setting information is reflected in the header part of the data.

11 and 12 show examples of the data structure stored in the data management device of the electronic pen when writing and erasing are actually performed on the paper surface by using the electronic pen for printing and erasing according to the present invention. Is shown. In the scenarios shown in FIGS. 11 and 12, the user inputs “25” at initial input.
After that, notice the mistake in input, delete “5”, and correct as “6”.

In the example of FIG. 11, in the data management device,
This is a case where all the loci of any pen tip are managed as data, and the example of FIG. 12 is a case where the locus data of the pen tip is processed and only the portion left as a print is managed as data.

First, the user uses the electronic printing pen to
Perform initial input. At this time, as shown in FIG. 11, a value 1101 (1 in the example in the figure) indicating printing is entered as the pen tip identifier. Position information of the locus indicating “25” continues as time series data 1104 and 1105 in the data part.

Next, the user switches to the erasing electronic pen,
Erase. At this time, as shown in FIG. 11, a value 1102 indicating erase is used as an identifier of the pen tip (0 in the example of the figure).
Goes in. Position information of the locus indicating the erased portion continues as time series data 1106 in the data portion.

Finally, the user returns to the electronic printing pen and makes a correction input. At this time, as shown in FIG.
A value 1103 (1 in the example in the figure) indicating erase is entered as the pen tip identifier. The position information of the locus indicating “6” continues as time series data 1107 in the data part.

In this way, while changing the value of the identifier, the position information of the loci of all the pen tips is recorded and managed. At this time, the management order should not be changed. That is, the data is managed in the order in which it was generated. Separate for printing and erasing,
“256” for printing and erased part for erasing are not managed.

The example of FIG. 12 shows a data structure at the time of data management in which information is processed such that the erased portion is data of only the printed portion resulting from the erase. At this time, a value 1201 (1 in the example of the figure) indicating that the identifier of the header section indicates printing is entered, and the final "26" follows in the data section. Note that the timing for performing information processing is preferably such that the pen tip is switched by the selection mechanism.

In the above-described embodiment, the ink pigment of the electronic pen with an erasing function is one that transmits infrared light and reflects most of the wavelength band of visible light, and when the pen tip comes into contact with the paper surface, Although the ink has been described as bleeding from the nib, some alternatives are also described.
FIG. 9 shows the relationship between the ink of the printing electronic pen and the electronic pen with an erasing function of the present invention. Ink 1 is
It contains a pigment that transmits infrared light and reflects or absorbs part of the wavelength band of visible light. This ink 1 is used as the ink for the electronic pen for printing. Figure 9
(A) is a pattern that is erased by making the ink 2 overlap the ink 1 so that the ink looks white to the human eye. The ink 2 contains a pigment that transmits infrared light and reflects most of the wavelength band of visible light. FIG. 9B shows a pattern in which the ink 1 and the ink 2 react with each other to form the ink 3, which is erased by making it transparent to the human eye. Ink 3 is an ink that transmits infrared light and has a property of mixing with the pigment contained in Ink 1, and when mixed, the property changes to pigment ink 4 that transmits infrared light and also visible light. is there. Figure 9
(C) is a pattern in which when ink 1 is in contact with the pen tip, the ink 1 is absorbed by the pen tip or the adhesive of the ink 1 is peeled off so that the ink 1 does not exist and is erased. No ink means no ink.

Finally, in the embodiment, the combination of the paper and the electronic pen has been described, but the position code can be printed with the ink containing the pigment that absorbs the infrared light without using the paper, and Other products capable of writing and erasing with an ink containing a pigment that transmits infrared light and reflects part or all of visible light may be used.

Examples of the electronic pen with an erasing function of the present invention which is useful when using paper as a product include a schedule notebook, an address book, a business diary, a map, a drawing, a drawing, and a manuscript used by a writer. , Music scores used by composers.

[0042]

As described above, according to the present invention, when information is printed or printed on paper and data of the information is digitized, it is printed or printed on the paper surface. The information and the electronic data of the corresponding portion in the information processing device can be erased with consistency.

[Brief description of drawings]

FIG. 1 is a configuration diagram of an electronic pen with an erasing function of the present invention.

FIG. 2 is a diagram showing optical characteristics of pigments used in ink of the electronic pen with an erasing function of the present invention.

FIG. 3 is a diagram showing a pattern of a layer structure of a print code layer, a print layer, and an erasing layer on paper.

FIG. 4 is a diagram showing a configuration of an information processing apparatus connected to an electronic pen with an erasing function of the present invention.

FIG. 5 is a diagram showing a structural example of data recorded and managed by the electronic pen with an erasing function of the present invention.

FIG. 6 is a diagram showing an example of writing on a paper when the electronic pen with an erasing function of the present invention is used.

FIG. 7 is a view showing data recorded and managed in each scene when the electronic pen with an erasing function of the present invention is used.

FIG. 8 is a diagram showing a final display screen obtained by combining the data shown in FIG. 7;

FIG. 9 is a diagram showing an alternative example of an erasing method using an electronic pen with an erasing function of the present invention.

FIG. 10 is a configuration diagram of a printing / erasing integrated electronic pen of the present invention.

FIG. 11 is a diagram showing an example of data recorded and managed by the printing / erasing integrated electronic pen of the present invention.

FIG. 12 is a diagram showing another example of data recorded and managed by the printing / erasing integrated electronic pen of the present invention.

FIG. 13 is a diagram showing the principle of a position code.

FIG. 14 is an enlarged view showing a medium on which a position code is written.

FIG. 15 is a diagram illustrating a relationship between a medium and electronic data.

[Explanation of reference numerals] 100 ... erasing ink, 101 ... Nib, 102 ... Pen core, 103 ... Ink cartridge, 104 ... Writing pressure sensor, 105 ... Infrared diode, 106 ... Infrared sensor, 107 ... Image processing device, 108 ... data management device, 109 ... data transmission / reception device, 110 ... battery, 1
11 ... Case.

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Yoko Shiraishi             Tokyo Stock Exchange, 1-6-27 Shinsuna, Koto-ku, Tokyo             Hitachi, Ltd. Public Systems Division F term (reference) 5B068 AA05 AA21 AA34 BB18 BD02                       BD04 BD09 CC16                 5B087 AA09 BC03 BC11 BC32 DD13                       DG02

Claims (16)

[Claims] 1. A means for acquiring a position code applied to a medium while a pen tip for adhering a first ink to the medium is in contact with the medium, and generating movement trajectory data of the first pen tip. Erasing means, and means for transferring the movement path data of the first pen tip to the information processing device together with a first identifier indicating that the first ink is erasing ink Electronic pen for data input. 2. The erase data input electronic pen according to claim 1, wherein the position code is printed on the medium by a first pigment that absorbs infrared light, and the position code acquisition means is infrared. An erase data input electronic pen comprising: a means for outputting light; and a means for sensing infrared light reflected by the medium. 3. The electronic pen for erasing data input according to claim 2, wherein the erasing ink is a white ink that transmits infrared light. 4. The erase data input electronic pen according to claim 1, further comprising a second pen tip for adhering a second ink to a medium, a switch for switching the first and second pen tips, and the second pen tip. An information processing device together with an identifier indicating that the second ink is the ink in which a specific band of the wavelength of visible light is absorbed when the second nib is selected. An electronic pen for entering business conditions data, characterized in that it is provided with a means for transferring to a business condition data. 5. A medium on which a position code is printed by a first pigment that absorbs infrared light, and a second pigment that transmits infrared light and absorbs a specific wavelength band of visible light is attached. ,
A pen tip to which a correction paint ink composed of a third pigment that transmits infrared light and makes the second pigment invisible is attached, a means for emitting infrared light, and a reflection of infrared light from the medium. Equipped with a erasing function, which is provided with processing means for sensing and acquiring a position code printed on a medium and calculating a movement path of the pen tip from the position code, and transmission means for outputting the movement path to the outside. Electronic pen. 6. A medium on which a position code is printed by a first pigment that absorbs infrared light, and a second pigment that transmits infrared light and absorbs a specific wavelength band of visible light is attached. ,
A nib to which a modified paint ink composed of a third pigment which reacts with the second pigment and changes the second pigment into a property of transmitting infrared light and transmitting a wavelength band of visible light is attached; Means for emitting external light; processing means for sensing the reflection of infrared light from the medium to obtain a position code printed on the medium; and calculating a movement locus of the pen tip from the position code; An electronic pen with an erasing function, characterized in that the electronic pen has a transmitting means for outputting the. 7. The electronic pen with an erasing function according to claim 5 or 6, further comprising a pen pressure sensor for the pen tip, wherein the processing means makes contact between the medium and the pen tip when the pen pressure sensor is operating. An electronic pen with an erasing function, characterized in that it acquires a position code within a predetermined range of the position being operated. 8. The electronic pen with an erasing function according to any one of claims 5 to 7, wherein the transmitting means is data in which the moving locus data is sent together with the moving locus data from the electronic pen with an erasing function. An electronic pen with an erasing function characterized by outputting an identifier indicating that. 9. A first nib for adhering a first ink to a medium, a second nib for adhering a second ink to a medium, and the first and second nibs. A switch for switching between the first and second nibs, processing means for acquiring the position code given to the medium while the first and second nibs are in contact with the medium, and generating movement path data of the nib; Data input comprising means for transferring trajectory data to an information processing device together with an identifier for identifying whether the trajectory data is the trajectory of the first pen tip or the trajectory of the second pen tip. Electronic pen. 10. The electronic pen for data input according to claim 9, wherein the transfer means switches the identifier according to the operation of the switch. 11. The data input electronic pen according to claim 9, wherein the second ink is a correction ink. 12. A first nib for adhering a first ink to a medium, a second nib for adhering a second ink to a medium, and the first and second nibs. A switch for switching between the first and second pen tips, processing means for obtaining a position code applied to the medium while the first and second pen tips are in contact with the medium, and generating movement path data of the pen tip. An electronic pen for inputting data, comprising means for synthesizing movement path data of first and second pen tips and transferring the data to an information processing apparatus. 13. The electronic pen for data input according to claim 12, wherein the combining process is a combining process for deleting the moving locus data of the first pen tip that overlaps the moving locus data of the second pen tip. An electronic pen for data input, which is characterized in that An electronic data input system, which is a synthesizing process for erasing movement trajectory data received from an electronic pen. 14. A pen movement locus data is used as a first or second data.
A circuit for receiving the first movement locus data received together with the first identifier as handwriting input data, and a second movement locus data received together with the second identifier for deletion data. And an synthesizing processing unit that erases the first movement locus data that overlaps the second movement locus data. 15. A pen tip that emits a second pigment that transmits infrared light and absorbs a specific wavelength band of visible light, a means that emits infrared light, and a first pigment that absorbs infrared light. A sensor that acquires the position code printed on the medium by sensing the reflection of infrared light from the medium on which the position code is printed by the sensor, and generates the pen tip movement trajectory data from the position code acquired by the sensor. A first electronic pen having a processing means and a transmitting means for outputting the movement trajectory data to the outside, and a pen for emitting a third pigment that transmits infrared light and reflects almost the entire wavelength band of visible light. A tip, means for emitting infrared light,
A sensor for detecting the reflection of infrared light from the medium on which the position code is printed by the first pigment that absorbs infrared light to obtain the position code printed on the medium, and a position code obtained by the sensor A second electronic pen having a processing means for generating movement path data of the pen tip and a transmission means for outputting the movement path data to the outside; and a second electronic pen communicating with the first and second electronic pens for the movement. An information processing apparatus including means for receiving trajectory data, and means for combining and displaying the trajectory data received from the first electronic pen and the trajectory data received from the second electronic pen. Electronic data input system. 16. The synthesizing process is a synthesizing process for erasing movement locus data received from the first electronic pen that overlaps movement locus data received from the second electronic pen. 15 electronic data entry systems.