KR20170081302A

KR20170081302A - Electronic eraser, electronic pen with electronic eraser and media printing code

Info

Publication number: KR20170081302A
Application number: KR1020160000111A
Authority: KR
Inventors: 이상규; 박봉기; 문아람; 하성훈
Original assignee: 주식회사 네오랩컨버전스
Priority date: 2016-01-02
Filing date: 2016-01-02
Publication date: 2017-07-12

Abstract

Discloses an electronic eraser or an electronic eraser combined with an electronic eraser capable of acquiring information about a erased position by writing a written locus written with a predetermined ink on a printed material on which a code is printed and a printed matter printed with a code used therefor.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an electronic eraser, an eraser-combined electronic pen,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic eraser, an eraser electronic pen, and a medium on which a code is printed, and more particularly to an optical eraser capable of grasping the erasure position, an optical pen with an optical eraser, .

In recent years, when a note is printed with a code or a printed matter is printed with an optical pen, a technique for digitally restoring the handwriting on a device such as a smart phone is disclosed.

Figs. 1 and 2 are views showing an example of a printed matter on which an optical pen and a cord are printed in the prior art.

1 and 2, the optical pen 100 has a pen tip as a writing means. The infrared light is irradiated from the infrared LED to the printed material 200, and the light reflected by the printed material 200 passes through an infrared filter, . In this case, the optical pen 100 obtains information about the code based on the light recognized by the image sensor, interprets it as coordinates of the code in the device connected to the optical pen 100, and digitally Restore. The printed matter 200 is printed with a code 201 serving as a basis for coordinate analysis, and the code 201 has the form of a line segment or a dot.

At present, there is no other way than to erase handwriting through a predetermined command in a device in which handwritten letters are separately erased with an eraser or a knife, or digitally restored handwriting. In the case of erasing the handwriting through the erasing in the printed matter and the predetermined command in the apparatus, it is difficult to exactly match the erased parts, and a lot of effort must be separately erased, so that the user feels inconvenience.

SUMMARY OF THE INVENTION It is an object of the present invention to provide an optical eraser, which is capable of erasing the locus memorized by a thermally denatured ink or photo-modified ink by an optical pen and grasping a erased position, as a separate or optical pen.

According to an aspect of the present invention, there is provided an optical eraser comprising: a main body; An optical unit for irradiating light onto a printed material on which a code is printed to obtain information on the light to be reflected; A control unit for obtaining information on a code printed on the printed matter based on information about light reflected from the optical unit; And an eraser capable of erasing a written locus written with a predetermined ink on the printed matter.

In the case of a heat-denatured ink having the property that the predetermined ink is erased when a predetermined heat is added, the eraser may be made of a material capable of generating frictional heat with respect to the printed matter.

In the case of a heat-denatured ink having the property that the predetermined ink is erased when a predetermined heat is applied, the eraser may include a hot wire.

In the case of the photo-modified ink having the property that the predetermined ink is erased when the predetermined light is irradiated, the eraser may further include a separate optical part for irradiating a predetermined light.

The code can be printed with a material that can not be erased by the eraser.

According to another aspect of the present invention, there is provided an optical pen having an eraser, comprising: a main body; A first optical section and a second optical section for irradiating light onto a printed material on which a code is printed to acquire information about the reflected light; A pen tip portion having a pen tip that can be written with a predetermined ink on the printed matter; An eraser capable of erasing a written locus written with the predetermined ink on the printed matter; And information on a code of a deletion part of a written locus written on the printed matter, based on information on light reflected from the first optical part and information on light reflected from the first optical part, And acquiring information on a code of a written locus written on the printed matter.

Wherein the control unit includes a first control unit for obtaining information on a code of a written locus written on the printed matter based on information about light reflected from the first optical unit, And a second control unit for obtaining information on a code of a deletion part of the written locus written on the printed matter, based on the second control part.

The first optical portion, the eraser portion, and the first control portion may be installed in the first case, and the second optical portion, the pen tip portion, and the second control portion may be separately installed in the second case.

According to the present invention, the code can be left as it is in the printed matter, and only the handwriting can be erased and the erasing position can be grasped, so that the handwriting can be erased evenly in the digitally restored handwriting. .

Figs. 1 and 2 are views showing an example of a printed matter on which an optical pen and a cord are printed in the prior art.
3 is a schematic diagram of an optical eraser according to an embodiment of the present invention.
4 is a block diagram illustrating a pen module according to an embodiment of the present invention.
5 and 6 are views showing an example of using an optical eraser according to an embodiment of the present invention.
7 is a schematic view of an eraser-combined optical pen according to an embodiment of the present invention.
8 is a block diagram illustrating a pen module according to an embodiment of the present invention.
9 is a block diagram illustrating a pen module according to another embodiment of the present invention.
10 is a schematic view of an eraser-combined optical pen according to another embodiment of the present invention.
11 is a diagram showing an example of a medium on which a code is printed according to an embodiment of the present invention.
12 is a cross-sectional view of a medium on which a code is printed according to another embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

In the following, the electronic eraser is referred to as an optical eraser, and the electronic pen is referred to as an optical pen.

3 is a schematic diagram of an optical eraser according to an embodiment of the present invention. 4 is a block diagram illustrating a pen module according to an embodiment of the present invention.

3 and 4, the optical eraser 300 includes a main body 310, an eraser portion 320, and a pen module 330 embedded in the main body 310. The pen module 330 includes an optical unit 331, a control unit 332, and a communication unit 333. The hole 340 is a hole in the path through which the light is irradiated or reflected in the optical portion 311. The optical portion 331 recognizes the code of the portion where the eraser portion 320 contacts the printed material 301 on which the code is printed to obtain information. In the present invention, the printed matter includes a code capable of grasping the position of the printed surface as shown in Fig. The optical portion 331 includes a light emitting portion 3311 and a light receiving portion 3312. For example, infrared light or ultraviolet light is irradiated to the printed material on which the cord is printed by the light emitting portion 3311, and the light reflected from the printed material by the light receiving portion 3312 is irradiated with a predetermined filter, for example, an infrared ray or ultraviolet ray filter (For example, a CMOS sensor) after passing through an image sensor (not shown). The optical unit 331 transmits information on the reflected light acquired by the image sensor to the control unit 332 and the control unit 332 acquires information on the code based on the information received from the optical unit 331. [ The communication unit 333 transmits the code information acquired by the control unit 332 to the other device 302 and the other device 302 acquires the coordinate information based on the code information received from the optical eraser 300. [ In another embodiment, the control unit 332 acquires the coordinate information based on the acquired code information, and the communication unit 333 may transmit the coordinate information to the other device 302. [ The other apparatus 302 is an apparatus as shown in FIG. 1, which receives predetermined information from an optical pen or an optical eraser 300, and digitally embodies or deletes a handwriting trajectory in the printed matter 301 . The optical eraser 300 and the other device 302 may be connected via any wired or wireless communication.

The eraser unit 320 may be installed at one end or the other end of the main body 310.

When the optical pen is written on the printed material 201 with thermally denatured ink, the eraser part 320 may be made of a material generating frictional heat with the printed material 201. Examples of materials include synthetic resins or synthetic rubbers. The heat-denatured ink has a property that it can be erased when the temperature becomes a predetermined temperature higher than room temperature, and the eraser portion 320 causes friction with the printed material 201, and the temperature of the portion written with the heat- If the ink is above a predetermined temperature that can be erased, the writing is erased.

In another embodiment, the eraser portion 320 may be composed of a member including a heat wire. In this case, the heating line can be ON / OFF and controlled in temperature by the control unit 232. The ON / OFF of the hot line can be recognized by operating the eraser unit 320 when the eraser unit 320 contacts the printed matter 301 through the pressure sensor built in the optical eraser 300, or by operating the predetermined button of the optical eraser 300 . When the temperature of the eraser unit 320 reaches a predetermined temperature through the hot wire, the writing is erased when it comes into contact with the portion written with the thermally denatured ink. A protective member may be further included in the eraser unit 320 in order to eliminate the discomfort or the sense of heterogeneity caused by the image or the temperature of the user of the optical eraser 300 due to the temperature of the eraser unit 320. [

When the optical pen is written on the printed matter 201 with photo-modified ink, the eraser unit 320 may be configured to irradiate predetermined light in one embodiment. In this case, the eraser unit 320 may further include a predetermined hole through which light can pass. The photo-modified ink has properties that can be erased when a predetermined light is irradiated at an intensity higher than a critical intensity. The predetermined light may be infrared light or ultraviolet light. In this case, the eraser unit 320 is composed of a separate optical unit (not shown) different from the optical unit 331, and the separate optical unit can be turned on / off and controlled by the controller 232. In this case, the separate optical part can irradiate the infrared ray or the ultraviolet ray with an intensity equal to or higher than the critical intensity. When writing is performed on a writing handwritten with a photo-modified ink through a separate optical part, writing is erased.

5 and 6 are views showing an example of using an optical eraser according to an embodiment of the present invention.

5 and 6, the written locus 510 written on the printed matter 301 is restored to the digital writing locus 502 in the other device 302. [ When the optical eraser 300 is erased from the first point 511 to the second point 512 of the writing locus 510 in the printed material 301, the portion of the writing locus 510 in the printed material 301 is erased. When the optical eraser 300 transmits code information along the erasure path to another device 302 the other device 302 moves from the first point 521 to the second point 522 of the displayed writing locus 520 .

7 is a schematic view of an eraser-combined optical pen according to an embodiment of the present invention. In Figs. 7 and 8, the optical pen of Fig. 1 and the optical eraser of Fig. 3 are integrated. 8 is a block diagram illustrating a pen module according to an embodiment of the present invention.

7 and 8, the eraser-combined optical pen 700 includes a main body 710, an eraser portion 720, a pen tip portion 730, and a pen module 740 embedded in the main body 710. The pen module 710 includes a first optical portion 741, a second optical portion 742, a control portion 743, and a communication portion 744. The first optical portion 741 is an optical portion related to the eraser portion 720 and the second optical portion 742 is an optical portion related to the pen tip portion 730. [ The first hole 750 is a hole in a path through which light is irradiated or reflected by the first optical portion 741 and the second hole 760 is irradiated or reflected by the second optical portion 742, It is a hole in the path. The first optical portion 741 recognizes the code of the portion where the eraser portion 720 contacts the printed material 701 on which the code is printed to obtain information. In the present invention, the printed matter includes a code capable of grasping the position of the printed surface as shown in Fig. The first optical portion 741 and the second optical portion 742 include light emitting portions 7411 and 7421 and light receiving portions 7412 and 7422, respectively. For example, infrared light or ultraviolet light is irradiated to the printed material on which the cord is printed by the light emitting portions 7411 and 7421 and light reflected from the printed material by the light receiving portions 7412 and 7422 is irradiated onto a predetermined filter, After passing through an infrared or ultraviolet filter, an image sensor (e.g., a CMOS sensor) acquires it. The optical unit 331 transmits information about the reflected light acquired by the image sensor to the control unit 332 and the control unit 743 transmits the information received from the first optical unit 741 or the second optical unit 742 To obtain information about the code. The communication unit 744 transmits the code information acquired by the control unit 743 to the other device 702 and the other device 702 acquires the coordinate information based on the code information received from the eraser-combined optical pen 700 . In another embodiment, the control unit 743 acquires the coordinate information based on the acquired code information, and the communication unit 744 may transmit the coordinate information to the other device 702. [ The other device 702 is a device that receives predetermined information from the eraser-combined optical pen 700 and digitally embodies or deletes the handwriting trajectory in the printed material 701 and displays it. The eraser-combined optical pen 700 and the other device 702 may be connected through a predetermined wired or wireless communication.

Which one of the first optical portion 741 and the second optical portion 742 is activated is determined by determining whether any of the eraser portion 720 or the fentin portion 730 through the pressure sensor built in the eraser- Or may be activated through a predetermined button of the eraser-combined optical pen 700. [0064]

9, the pen module 740 includes an eraser module 7401 including a first optical portion associated with the eraser portion 720, a first control portion, and a first communication portion, And a writing module 7402 including a second optical unit, a second control unit, and a second communication unit associated with the first optical unit 730. In this case, the eraser module 7401 and the pen tip module 7402 may be made of a common case or may be made of a separate case.

The pen tip portion 730 may be installed at one end of the main body 710. The user of the optical pen 700 serving as the eraser can write on the printed material 701 by using the pen tip included in the pen tip portion 730. [ The pen tip contains a heat-denatured ink or a photo-denatured ink.

The eraser unit 720 may be installed at the other end of the main body 710. When the thermosensitive ink is written on the print 701, the eraser 720 may be made of a material generating frictional heat with the print 701. Examples of materials include synthetic resins or synthetic rubbers. The thermally denaturated ink has a property that it can be erased when the temperature becomes a predetermined temperature higher than room temperature and the eraser portion 720 causes friction with the print 701 so that the temperature of the portion written with the heat- If the ink is above a predetermined temperature that can be erased, the writing is erased.

In another embodiment, the eraser portion 720 may be comprised of a member comprising a hot wire. In this case, the heating line can be ON / OFF and controlled in temperature by the control unit 733. [ When the temperature of the eraser 720 reaches a predetermined temperature through the hot wire, the writing is erased when it comes into contact with the portion written with thermally denatured ink. A protective member may be further included in the eraser unit 720 in order to eliminate a discomfort or a sense of heterogeneity depending on the image or temperature due to the temperature of the eraser unit 720. [

When the printed matter 701 is written with photo-modified ink, the eraser unit 720 may be configured to irradiate predetermined light in one embodiment. In this case, the eraser unit 720 may further include a predetermined hole through which light can pass. The photo-modified ink has properties that can be erased when a predetermined light is irradiated at an intensity higher than a critical intensity. The predetermined light may be infrared light or ultraviolet light. In this case, the eraser unit 720 is composed of a separate optical unit (not shown) different from the first optical unit 741 and the second optical unit 742, and the separate optical unit is turned on / OFF and intensity of light can be controlled. In this case, the separate optical part can irradiate the infrared ray or the ultraviolet ray with an intensity equal to or higher than the critical intensity. When writing is performed on a writing handwritten with a photo-modified ink through a separate optical part, writing is erased.

The method of using the eraser is shown in Figs. 5 and 6, and the method of writing is the same as that of Fig. 1, and a description thereof will be omitted.

10 is a schematic view of an eraser-combined optical pen according to another embodiment of the present invention. Referring to Fig. 10, in the case of attaching the pen tip of (b) for writing to the optical pen of the eraser of (a), the optical pen of (c) is similar to the optical pen of When operating, and attaching the eraser tip of (d), the optical pen of (e) works like the optical eraser of Fig. A marker to identify the pen tip or eraser tip may be displayed on the pen tip or eraser tip.

11 is a diagram showing an example of a medium on which a code is printed according to an embodiment of the present invention.

Referring to Fig. 11, a handwriting 1001 and a printed code 1002 with an optical pen are displayed on the medium. The writing is made of a thermally-modified ink or photo-modified ink which can be erased by the optical eraser of Fig. 3 or the eraser-combined optical pen of Fig. 7, and the code is not erased by the optical eraser of Fig. 3 or the eraser- And is printed with an ink component.

12 is a cross-sectional view of a medium on which a code is printed according to another embodiment of the present invention.

Referring to FIG. 12, a piezoelectric sensor sheet 1100 is provided at the lower end of the printed material 1000 on which the code 1002 is printed. In the case where the optical pen or the eraser optical pen is in contact with the printed matter 1000, the piezoelectric sensor sheet 1100 recognizes the portion as a portion to be erased when the contact area is equal to or larger than the predetermined threshold value, and outputs a signal related thereto as an optical pen or an eraser- Pen or a device connected to the optical pen.

The piezoelectric sensor sheet 1100 may be provided integrally with the printed material 1000 printed with the code 1002, or may be provided as a separated separate finished product.

In another embodiment, when a position sensor is further attached to the piezoelectric sensor sheet 1100, when erasing with a general eraser other than an optical pen, the erasing portion is recognized as a portion erased by using the piezoelectric sensor and the position sensor, An optical pen combined with a pen or an eraser, or an apparatus connected to the optical pen.

The present invention has been described with reference to the preferred embodiments. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. Therefore, the disclosed embodiments should be considered in an illustrative rather than a restrictive sense. The scope of the present invention is defined by the appended claims rather than by the foregoing description, and all differences within the scope of equivalents thereof should be construed as being included in the present invention.

100 .. Optical pen
300 .. Optical Eraser
700 .. Optical Pen with Eraser
1000 .. Code printed medium

Claims

In the optical eraser,
main body;
An optical unit for irradiating light onto a printed material on which a code is printed to obtain information on the light to be reflected;
A control unit for obtaining information on a code printed on the printed matter based on information about light reflected from the optical unit; And
And an eraser capable of erasing a written locus written with a predetermined ink on the printed matter.

The method according to claim 1,
Wherein the eraser is made of a material capable of generating frictional heat with respect to the printed matter when the predetermined ink is thermally denatured ink having a property of being erased when a predetermined heat is added.

The method according to claim 1,
Wherein the eraser portion includes a heat line when the predetermined ink is heat-denatured ink having a property of being erased when a predetermined heat is applied thereto.

The method according to claim 1,
Wherein the eraser unit further comprises a separate optical unit for irradiating a predetermined light when the predetermined ink is a photo-modified ink having a property of being erased when a predetermined light is irradiated.

5. The method according to any one of claims 1 to 4,
Wherein the code is printed with a material that is not erased by the eraser unit.

In an eraser-combined optical pen,
main body;
A first optical section and a second optical section for irradiating light onto a printed material on which a code is printed to acquire information about the reflected light;
A pen tip portion having a pen tip that can be written with a predetermined ink on the printed matter;
An eraser capable of erasing a written locus written with the predetermined ink on the printed matter; And
Acquiring information on a code of a deletion part of a written locus written on the printed matter based on information about light reflected from the first optical part, and based on information on light reflected from the second optical part And a control unit for acquiring information on a code of a written locus written on the printed matter.

The method of claim 6,
Characterized in that the eraser unit is made of a material capable of generating frictional heat with respect to the printed matter when the predetermined ink of the pen tip is erased when predetermined heat is added, .

The method of claim 6,
Characterized in that the eraser unit comprises a heat line when the predetermined ink of the pen tip is a heat-denatured ink having a property of being erased when a predetermined heat is added thereto.

The method of claim 6,
Wherein the eraser unit further comprises a separate optical unit for irradiating a predetermined light when the predetermined ink of the pen tip is erased when predetermined light is irradiated.

The method of claim 6,
Wherein the control unit includes a first control unit for obtaining information on a code of a written locus written on the printed matter based on information about light reflected from the first optical unit, And a second control unit for obtaining information on a code of a deletion part of the written locus written on the printed matter, based on the first control information.

The method of claim 10,
Wherein the first optical portion, the eraser portion, and the first control portion are provided in the first case, and the second optical portion, the pen tip portion, and the second control portion are separately provided in the second case.

12. The method according to any one of claims 6 to 11,
Wherein the code is printed with a material that is not erased by the eraser unit.