WO2010007731A1 - Indicator and position detection device - Google Patents
Indicator and position detection device Download PDFInfo
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- WO2010007731A1 WO2010007731A1 PCT/JP2009/002831 JP2009002831W WO2010007731A1 WO 2010007731 A1 WO2010007731 A1 WO 2010007731A1 JP 2009002831 W JP2009002831 W JP 2009002831W WO 2010007731 A1 WO2010007731 A1 WO 2010007731A1
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- magnetic member
- change
- indicator
- detection
- fixed magnetic
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/046—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by electromagnetic means
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0412—Digitisers structurally integrated in a display
Definitions
- the present invention relates to a pointing device and a position detection device, and in particular, position detection capable of detecting a pointing position of a pointing device by detecting a change in the degree of electromagnetic coupling between a driving side loop wiring group and a detection side loop wiring group on a detection surface.
- the present invention relates to an indicating tool and a position detection device used in the apparatus.
- a coordinate input device called a digitizer
- the digitizer includes an pointing tool and a position detection device, and an operator performs operations such as cursor movement and drawing on the detection surface of the position detection device with the pointing tool.
- Some of these digitizers can detect not only the pointing position but also whether the pointing tool has touched the detection surface (pen down / pen up) and the writing pressure of the pointing tool.
- a contact such as a switch is provided at the tip of the indicator, and a pen-down is detected by this ON / OFF, or a pressure-sensitive resistor element or pressure-sensitive capacitance element is provided at the tip of the indicator or the detection surface to detect pen-down.
- a contact such as a switch is provided at the tip of the indicator, and a pen-down is detected by this ON / OFF, or a pressure-sensitive resistor element or pressure-sensitive capacitance element is provided at the tip of the indicator or the detection surface to detect pen-down.
- the pointing tool disclosed in Patent Document 1 can detect pen down and writing pressure.
- This has two ferrite cores, one ferrite core is configured to be movable with respect to the other ferrite core, and a coil is wound around the other ferrite core.
- This coil is electrically connected to a capacitor and forms a resonance circuit together with this capacitor.
- the indicator as disclosed in Patent Document 1 uses a resonance circuit composed of a coil and a capacitor, and the pen pressure can be detected by detecting a change in the resonance frequency of the resonance circuit with a detection device. It was something. Therefore, there is a problem in durability and reliability because a contact, a pressure sensitive element, or the like is used or a resonance circuit is used. In addition, the number of parts increases, which may increase the cost.
- the present invention provides an indicating tool and a position detecting device that can detect that the pointing tool has touched the detection surface while the pointing tool has touched the detection surface even though the resonant circuit or the like is unnecessary. It is something to be offered.
- an indicator according to the present invention is composed of a fixed magnetic member made of a magnetic material and a magnetic material, and is configured to be movable with respect to the fixed magnetic member.
- a movable magnetic member whose distance between the fixed magnetic member and the fixed magnetic member changes when touched by the indicator, and the indicator detects the change based on a change in the degree of electromagnetic coupling caused by a change in the distance between the fixed magnetic member and the movable magnetic member.
- the position detection device can detect that the surface has been touched.
- an elastic body is provided that applies an urging force to the movable magnetic member in a direction in which the movable magnetic member is separated from the fixed magnetic member.
- the position detection device may be capable of detecting the writing pressure applied to the detection surface by the pointing tool.
- the fixed magnetic member and / or the movable magnetic member may be made of ferrite.
- the position detection device determines whether or not the change in the degree of electromagnetic coupling due to the change in the distance between the fixed magnetic member and the movable magnetic member of the pointing tool is larger than a predetermined change amount. It may have a pen-down detection unit that detects that the touched the detection surface.
- it may have a writing pressure calculation unit that calculates the writing pressure by detecting the amount of change in the degree of electromagnetic coupling due to the change in the distance between the fixed magnetic member and the movable magnetic member of the pointing tool.
- input by a plurality of pointing devices may be detectable.
- a plurality of indicators can be identified by detecting a pattern in which the degree of electromagnetic coupling changes in response to inputs from a plurality of indicators having different shapes and / or magnetic materials of the fixed magnetic member and / or the movable magnetic member. It may have a pointing device identifying unit.
- it may have a display device stacked on the detection surface.
- the pointing device and the position detection device of the present invention have an advantage that the position detection device can detect that the pointing device has touched the detection surface, even though the pointing device has a simple configuration.
- FIG. 1 is a schematic view for explaining an indicator and a position detection device of the present invention.
- FIG. 2 is a schematic cross-sectional view in the longitudinal direction for explaining the indicator of the present invention.
- FIG. 3 is a graph showing a change characteristic of the degree of electromagnetic coupling with respect to the distance between the fixed magnetic member and the movable magnetic member.
- FIG. 1 is a schematic view for explaining an indicator and a position detection device of the present invention.
- the present invention includes the pointing tool 10 and the position detection device 20.
- the indicator 10 has a magnetic material, but a detailed configuration example will be described later.
- the position detection device has any configuration as long as it can detect the indicated position of the pointing tool by detecting the change in the degree of electromagnetic coupling between the driving side loop wiring group and the detection side loop wiring group on the detection surface. May be.
- the position detection device 20 in the illustrated example includes a detection surface 21, a drive unit 22, and a detection unit 23.
- the detection surface 21 is provided with a plurality of drive-side loop wires (drive-side loop wire group) 220 and a plurality of detection-side loop wires (detection-side loop wire group) 230.
- the drive unit 22 drives a plurality of drive side loop wirings 220, and the detection unit 23 detects changes in the degree of electromagnetic coupling from the plurality of detection side loop wirings 230.
- the driving side loop wiring 220 and the detection side loop wiring 230 are each composed of a linear wiring, and are arranged so as to be orthogonal to each other.
- the drive unit 22 is mainly composed of an oscillator 223 and a switch 224.
- the drive unit 22 is sequentially connected to each drive-side loop wiring 220, and the drive-side loop wiring 220 is sequentially driven at a high frequency.
- the detection unit 23 is mainly composed of a switch 232, an amplifier 233, and a synchronous detection unit 234.
- the detection unit 23 is sequentially connected to each detection-side loop wiring 230, and from the detection-side loop wiring 230, The induced current or induced voltage is detected sequentially.
- the output from the oscillator 223 is also connected to the synchronous detection unit 234, and the product of the output from the oscillator 223 and the output from the detection-side loop wiring 230 is taken, and this is integrated over time.
- it may be configured to detect from all the detection side loop wirings at once by providing a detection circuit separately for each detection side loop wiring or combining a frequency filter circuit or the like.
- the drive unit 22 and the detection unit 23 are controlled by the microprocessor 30 so as to obtain a desired output. Specifically, first, the drive unit 22 is connected to the first drive-side loop wiring 220, the detection unit 23 is sequentially connected to the plurality of detection-side loop wirings 230, and the output signal at that time is measured. Then, the drive unit 22 is connected to the second drive side loop wiring 220, and the detection unit 23 is sequentially connected to the plurality of detection side loop wirings 230, and the output signal at that time is measured. By repeating this, it is possible to measure output signals at all positions where the intersections of the driving side loop wiring 220 and the detection side loop wiring 230 on the detection surface 21 are XY coordinates.
- the driving side loop wiring 220 and the detection side loop wiring 230 are orthogonal to each other, so that electromagnetic coupling is not performed. Even if the driving side loop wiring 220 is driven, no induced current or induced voltage is output from the detection side loop wiring 230.
- electromagnetic coupling is performed at the intersection near the pointing position of the pointing tool 10. And an induced current or induced voltage is output from the detection-side loop wiring 230.
- the position coordinates of the indicator can be detected even if the indicator floats by a distance that is affected by the magnetic material of the indicator near the detection surface. Is also possible.
- the position detection device capable of detecting the indication position of the pointing tool by detecting the change in the degree of electromagnetic coupling between the driving-side loop wiring group and the detection-side loop wiring group on the detection surface as described above.
- the position detection device used in the present invention is not limited to the one in which the driving side loop wiring and the detection side loop wiring are indirectly electromagnetically coupled, as in the above-described example of the drawing, but directly electromagnetically coupled. It does not matter. That is, a conductor piece may be provided in the vicinity of the intersection of the drive side loop wiring and the detection side loop wiring on the detection surface so that the intersection is electromagnetically coupled.
- the driving side loop wiring and the detection side loop wiring on the detection surface are formed in an arch shape so that the intersecting portions thereof constitute a coil, and the intersection is electromagnetically coupled. good.
- the position detecting device configured to be directly electromagnetically coupled in this way, the measured induced current or induced voltage is increased by placing an indicator having a magnetic material on the detection surface. By detecting this increase, the pointing position coordinates of the pointing tool can be detected as in the above example.
- Such a configuration is also described in, for example, Japanese Patent Application No. 2006-169145 by the same applicant as the present applicant.
- FIG. 2 is a schematic cross-sectional view in the longitudinal direction for explaining the indicator of the present invention.
- the indicator 10 of the present invention is mainly composed of a fixed magnetic member 11 and a movable magnetic member 12. These components are accommodated in a pen-shaped housing 18.
- the movable magnetic member 12 is also described as being detached from the casing 18, but a means for preventing the movable magnetic member from being removed may be provided as appropriate.
- the fixed magnetic member 11 is made of a magnetic material.
- a material having ferromagnetism is preferable, and examples thereof include ferrite, alnico, and permalloy.
- the fixed magnetic member 11 is fixed to the housing 18, for example, and moves integrally with the pointing tool 10.
- the movable magnetic member 12 is also made of a magnetic material. Similar to the fixed magnetic member 11, the magnetic material is preferably a material having ferromagnetism, and examples thereof include ferrite, alnico, and permalloy.
- the movable magnetic member 12 is configured to be movable with respect to the fixed magnetic member 11. That is, the movable magnetic member 12 is not fixed to the casing 18, and an urging force is applied in a direction in which the movable magnetic member 12 is separated from the fixed magnetic member 11 using an elastic body 19 such as an O-ring. Yes.
- the tip portion of the pointing tool that contacts the detection surface 21 is configured by the movable magnetic member 12, but the present invention is not limited to this, and the tip portion may be other than the magnetic member. It is also possible to use a member.
- a resin or the like that covers the tip of the movable magnetic member may be provided.
- the fixed magnetic member and the movable magnetic member may be formed in a cylindrical shape, and a writing instrument core may be provided at the center of the cylinder. Examples of writing instrument cores include various types such as mechanical pencils, ballpoint pen cores, marker pen cores, and the like.
- FIG. 3 is a graph showing a change characteristic of the degree of electromagnetic coupling with respect to the distance between the fixed magnetic member and the movable magnetic member.
- the vertical axis represents the relative value when the degree of electromagnetic coupling when the distance between the magnetic members is 0 is 100. As illustrated, it can be seen that the degree of electromagnetic coupling increases rapidly as the distance between the fixed magnetic member and the movable magnetic member decreases.
- the position detection device can detect that the pointing tool has touched the detection surface. Yes. That is, as shown in FIG. 1, the position detection device 20 of the present invention receives an output from the microprocessor 30 and detects that the pointing tool 10 has touched the detection surface 21, and a pointing tool 40. It has a writing pressure calculation unit 50 that calculates ten writing pressures. Hereinafter, these will be described in detail.
- the pen-down detection unit 40 determines whether the change in the degree of electromagnetic coupling due to the change in the distance between the fixed magnetic member 11 and the movable magnetic member 12 of the pointing tool 10 is larger than a predetermined change amount. Is detected touching the detection surface 21. For example, based on the change characteristic of FIG. 3, when the degree of electromagnetic coupling exceeds 60, it is determined that the pointing tool 10 has touched the detection surface 21.
- the pen down with a small stroke Is preferably detectable.
- the pointing device of the present invention for example, as is apparent from the change characteristics of FIG. 3, a significant change appears in a small stroke range (0 mm to 0.4 mm), and therefore, between the fixed magnetic member and the movable magnetic member. If the distance is set to 0.5 mm, for example, pen-down detection can be performed with a very small stroke, and an easy-to-use pointing tool and position detection device can be provided.
- the writing pressure calculation unit 50 calculates the writing pressure by detecting the amount of change in the degree of electromagnetic coupling due to the change in the distance between the fixed magnetic member 11 and the movable magnetic member 12 of the pointing tool 10. For example, using the change characteristics shown in FIG. 3, the writing pressure with respect to the change amount is obtained in advance as a conversion curve, and when the change amount of the electromagnetic coupling degree (change in the amplitude of the induced current or induced voltage) is detected, the conversion curve is obtained. Is used to find the pen pressure corresponding to the amount of change. Note that the amount of change in the degree of electromagnetic coupling may be used as it is as writing pressure (degree of pressing strength). It is also possible to perform calibration by previously inputting to the detection surface with the maximum writing pressure and storing a change characteristic based on the maximum writing pressure.
- the movable magnetic member 12 is given an urging force in a direction in which the movable magnetic member 12 is separated from the fixed magnetic member 11 by an elastic body 19 such as an O-ring. Since the urging force (elastic force) of the elastic body 19 affects the writing pressure calculation as described above, the elastic force of the elastic body 19 may be determined in accordance with a desired writing pressure calculation capability. For example, when it is desired to detect a more accurate writing pressure with respect to a light writing pressure, the elastic force of the elastic body 19 may be set to be weak. Further, when it is desired to detect even a heavy writing pressure, the elastic force of the elastic body 19 may be set higher.
- the elastic body is not necessarily used. It is not necessary to provide it.
- the movable magnetic member is configured to be movable without being given an urging force by the elastic body, the movable magnetic member is lowered by gravity in the pen-up state, and the distance between the fixed magnetic member and the movable magnetic member is reduced.
- the pen-down state the fixed magnetic member and the movable magnetic member come into contact with each other, so as in the above example, based on the change in the degree of electromagnetic coupling, the position of the indicator touching the detection surface is detected.
- the device is detectable.
- the pen-down detection unit and the writing pressure calculation unit can cause the microprocessor to perform these processes.
- the position detection device of the present invention even if the pointing tool is not in contact with the detection surface, the position of the pointing tool is lifted by a distance that is affected by the magnetic material of the pointing tool in the vicinity of the detection surface. Coordinates can be detected. Therefore, the movement of the cursor, which is a user interface for pointing an instruction or operation target in an electronic computer such as a personal computer, is moved in accordance with the coordinates where the change in the electromagnetic coupling degree is detected. When pen-down is detected, it is possible to switch to functions such as click and drawing. Even when the user interface is switched to a function such as drawing, the writing pressure calculation unit can calculate the writing pressure of the pointing tool. Therefore, it is possible to provide a pointing tool and a position detection device that are very easy to use as a digitizer used as an input device such as a computer.
- a display device may be laminated on the detection surface of the position detection device. That is, it is possible to arrange the detection surface so as to correspond to the display area of the display device and to form a touch panel display device.
- the drive-side loop wiring group and the detection-side loop wiring group arranged on the detection surface are made of, for example, a transparent conductor, so that the detection surface of the position detection device can be placed on the display device without disturbing the display of the display device. It can be placed on the display screen.
- the position detection device used in the present invention is capable of detecting the indicated position of the pointing tool by detecting a change in the degree of electromagnetic coupling between the driving side loop wiring group and the detection side loop wiring group on the detection surface.
- a change in the degree of electromagnetic coupling is detected at a plurality of locations. That is, when a plurality of pointing tools are input on the detection surface, electromagnetic coupling occurs at the intersections in the vicinity of the respective pointing positions of the plurality of pointing tools among the intersections of the drive side loop wiring and the detection side loop wiring.
- the position detection device when performing input to the position detection device using a plurality of pointing tools, it is possible to identify and detect the plurality of pointing tools by making the configuration of each pointing tool different. That is, a plurality of indicators having different shapes and / or magnetic materials of the fixed magnetic member and / or the movable magnetic member are prepared. For example, in two indicating tools, different diameters of the movable magnetic member are used. In this case, the patterns in which the electromagnetic coupling degrees of the driving side loop wiring group and the detection side loop wiring group change are detected differently.
- the cross-sectional shape is changed to a triangle, square, circle, etc., or even if the shape is made different using a plurality of magnetic members, there is a pattern in which the electromagnetic coupling degree changes similarly. Each is detected differently.
- the magnetic materials may be made different. Specifically, the magnetism may be made different in strength. In this case, it is possible to increase detection accuracy by detecting the temporal change.
- an indicator identifying unit that identifies a plurality of indicators by detecting a pattern in which the degree of electromagnetic coupling changes is provided between the microprocessor 30 and the pen-down detector 40 shown in FIG. It becomes possible to identify a plurality of pointing devices according to the detection pattern whose degree has changed.
- the pointing device of the present invention does not require a power source or a circuit as in the conventional pointing device, for example, the position detecting device is applied to an electronic blackboard or an electronic whiteboard, and a plurality of pointing devices are used. Even in this case, it can be realized at a very low cost.
- the indicator of the present invention does not require a power source or circuit elements, it is excellent in durability and reliability.
- the pointing device of the present invention is not limited to the illustrated examples described above, and it is needless to say that various changes can be made without departing from the gist of the present invention.
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Abstract
Description
11 固定磁性部材
12 可動磁性部材
18 筐体
19 弾性体
20 位置検出装置
21 検出面
22 駆動部
23 検出部
30 マイクロプロセッサ
40 ペンダウン検出部
50 筆圧算出部
220 駆動側ループ配線
223 発振器
224 切替器
230 検出側ループ配線
232 切替器
233 アンプ
234 同期検波部 DESCRIPTION OF
Claims (8)
- 検出面の駆動側ループ配線群と検出側ループ配線群の電磁結合度の変化を検出することで、指示具の指示位置を検出可能な位置検出装置に用いられる指示具であって、該指示具は、
磁性材料からなる固定磁性部材と、
磁性材料からなり、前記固定磁性部材に対して移動可能に構成され、指示具が検出面に触れると前記固定磁性部材との間の距離が変化する可動磁性部材と、を具備し、
前記固定磁性部材と前記可動磁性部材との間の距離の変化による前記電磁結合度の変化に基づき、指示具が検出面に触れたことを位置検出装置が検出可能であることを特徴とする指示具。 An indicator used in a position detection device capable of detecting an indication position of an indicator by detecting a change in the degree of electromagnetic coupling between a drive-side loop wire group and a detection-side loop wire group on a detection surface. Is
A fixed magnetic member made of a magnetic material;
A movable magnetic member made of a magnetic material, configured to be movable with respect to the fixed magnetic member, and having a distance between the indicator and the fixed magnetic member that changes when the indicator touches the detection surface;
The position detecting device can detect that the pointing device has touched the detection surface based on the change in the electromagnetic coupling degree due to the change in the distance between the fixed magnetic member and the movable magnetic member. Ingredients. - 請求項1に記載の指示具であって、さらに、前記可動磁性部材が前記固定磁性部材に対して離れる方向に前記可動磁性部材に付勢力を与える弾性体を具備し、
前記固定磁性部材と前記可動磁性部材との間の距離の変化による前記電磁結合度の変化に基づき、指示具が検出面に与える筆圧を位置検出装置が検出可能であることを特徴とする指示具。 The indicator according to claim 1, further comprising an elastic body that applies a biasing force to the movable magnetic member in a direction in which the movable magnetic member is separated from the fixed magnetic member.
The position detecting device can detect the writing pressure applied to the detection surface by the pointing tool based on the change in the degree of electromagnetic coupling caused by the change in the distance between the fixed magnetic member and the movable magnetic member. Ingredients. - 請求項1又は請求項2に記載の指示具において、前記固定磁性部材及び/又は前記可動磁性部材は、フェライトからなることを特徴とする指示具。 3. The indicator according to claim 1 or 2, wherein the fixed magnetic member and / or the movable magnetic member is made of ferrite.
- 請求項1乃至請求項3の何れかに記載の指示具の指示位置を検出可能な位置検出装置であって、該位置検出装置は、指示具の前記固定磁性部材と前記可動磁性部材との間の距離の変化による前記電磁結合度の変化が所定の変化量よりも大きいか否か判定することで指示具が検出面に触れたことを検出するペンダウン検出部を有することを特徴とする位置検出装置。 4. A position detection device capable of detecting the indicated position of the pointing tool according to claim 1, wherein the position detecting device is provided between the fixed magnetic member and the movable magnetic member of the pointing tool. Position detection, comprising: a pen-down detection unit that detects that the pointing tool has touched the detection surface by determining whether or not the change in the electromagnetic coupling degree due to the change in the distance is greater than a predetermined change amount. apparatus.
- 請求項4に記載の位置検出装置であって、さらに、指示具の前記固定磁性部材と前記可動磁性部材との間の距離の変化による前記電磁結合度の変化量を検出することで筆圧を算出する筆圧算出部を有することを特徴とする位置検出装置。 5. The position detection device according to claim 4, further comprising: detecting a writing pressure by detecting a change amount of the electromagnetic coupling degree due to a change in a distance between the fixed magnetic member and the movable magnetic member of the pointing tool. A position detection device having a writing pressure calculation unit for calculating.
- 請求項4又は請求項5に記載の位置検出装置であって、さらに、複数の指示具による入力が検出可能であることを特徴とする位置検出装置。 6. The position detection apparatus according to claim 4, further comprising: an input by a plurality of pointing devices.
- 請求項4乃至請求項6の何れかに記載の位置検出装置であって、さらに、前記固定磁性部材及び/又は前記可動磁性部材の形状及び/又は磁性材料がそれぞれ相違する複数の指示具による入力に対して、前記電磁結合度が変化するパターンを検出することで複数の指示具を識別する指示具識別部を有することを特徴とする位置検出装置。 The position detection device according to claim 4, further comprising: an input by a plurality of pointing devices having different shapes and / or magnetic materials of the fixed magnetic member and / or the movable magnetic member. On the other hand, a position detecting device comprising an indicator identifying unit that identifies a plurality of indicators by detecting a pattern in which the degree of electromagnetic coupling changes.
- 請求項4乃至請求項7の何れかに記載の位置検出装置であって、さらに、検出面に積層される表示装置を有することを特徴とする位置検出装置。 8. The position detection apparatus according to claim 4, further comprising a display device stacked on a detection surface.
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JP3088825B2 (en) * | 1992-03-25 | 2000-09-18 | 株式会社ワコム | Input device for coordinate input device |
JP2857539B2 (en) * | 1992-05-11 | 1999-02-17 | グラフテック株式会社 | Cordless digitizer |
JP3227906B2 (en) * | 1993-05-31 | 2001-11-12 | 富士通株式会社 | Handwriting input information processing device |
-
2008
- 2008-07-15 JP JP2008183877A patent/JP2010026586A/en active Pending
-
2009
- 2009-06-22 WO PCT/JP2009/002831 patent/WO2010007731A1/en active Application Filing
- 2009-06-22 KR KR1020117000905A patent/KR20110030580A/en not_active Application Discontinuation
- 2009-06-22 CN CN2009801276849A patent/CN102099773A/en active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
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JPS63247814A (en) * | 1987-04-02 | 1988-10-14 | Wacom Co Ltd | State detecting system for position indicator |
JPS6473414A (en) * | 1987-09-14 | 1989-03-17 | Wacom Co Ltd | Electronic blackboard device |
JPH09160707A (en) * | 1995-12-05 | 1997-06-20 | Toshiba Corp | Pen input information processor |
JP2006163798A (en) * | 2004-12-07 | 2006-06-22 | Wacom Co Ltd | Coordinate indicator and coordinate input device |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2016157322A (en) * | 2015-02-25 | 2016-09-01 | シャープ株式会社 | Output device, output device system, image display system, output method, computer program, and recording medium |
Also Published As
Publication number | Publication date |
---|---|
JP2010026586A (en) | 2010-02-04 |
KR20110030580A (en) | 2011-03-23 |
CN102099773A (en) | 2011-06-15 |
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