WO2007111291A1 - 入力装置および入力方法 - Google Patents
入力装置および入力方法 Download PDFInfo
- Publication number
- WO2007111291A1 WO2007111291A1 PCT/JP2007/056177 JP2007056177W WO2007111291A1 WO 2007111291 A1 WO2007111291 A1 WO 2007111291A1 JP 2007056177 W JP2007056177 W JP 2007056177W WO 2007111291 A1 WO2007111291 A1 WO 2007111291A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- signal
- reflected wave
- substrate
- input device
- signal line
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; 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
- G06F3/02—Input arrangements using manually operated switches, e.g. using keyboards or dials
- G06F3/0202—Constructional details or processes of manufacture of the input device
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P5/00—Coupling devices of the waveguide type
- H01P5/04—Coupling devices of the waveguide type with variable factor of coupling
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
- H03K17/96—Touch switches
Definitions
- the present invention relates to a thin input device and an input method.
- FIG. 11 is an explanatory diagram showing a configuration of a key unit in a conventional operation unit used for a portable terminal.
- FIG. 11A illustrates a top view of a conventional key part.
- FIG. 11 (b) illustrates a cross-sectional view of a conventional key part.
- the key portion shown in FIG. 11 is installed electrically insulated relative to the substrate 6, and has an elastic key sheet having a recess with respect to the substrate 6 and is fixed to the recess with an adhesive sheet or the like.
- FIG. 11 (b) the end of the metal plate 9 is in contact with the pad surface 7 formed on the substrate 6, and the central portion of the metal plate 9 is in the perspective direction with respect to the substrate 6. It is installed so that it can be displaced.
- the central portion of the metal plate 9 is pushed down toward the substrate 6, the central portion of the metal plate 9 contacts the pad surface 8 formed on the substrate 6.
- FIG. 12 is an explanatory view showing a state in which the central portion of the metal plate 9 is pressed.
- Patent Document 1 a piezoelectric element is provided on one surface of a substrate, and an ultrasonic wave in the substrate that changes when a finger contacts the other surface of the substrate is detected. A switch for detecting contact is described.
- Patent Document 1 Japanese Patent Laid-Open No. 7-282699 (paragraphs 0018 to 0043, FIG. 1)
- the key portion including a plurality of keys is also required to be thinner.
- the metal plate 9 and the pad surface 8 are not electrically connected to each other when not pressed, so that the central portion of the metal plate 9 and the pad are not electrically connected.
- Surface 8 There must be a gap between them. Therefore, it is difficult to reduce the thickness of the operation unit. As a result, thinning of the mobile terminal is hindered.
- the key part in order to prevent poor contact between the center portion of the metal plate 9 and the pad surface 8, it is possible to prevent foreign matter and water from entering the gap between the center portion of the metal plate 9 and the pad surface 8. desirable.
- the key part must be assembled in a clean room, or the key part must be configured to prevent foreign matter from entering the gap after shipment. .
- the metal plate 9 is made thin in order to reduce the thickness of the key part, there is a problem that the strength of the metal plate 9 is lowered and may be damaged.
- the switch described in Patent Document 1 has a piezoelectric element provided on one surface of the substrate, so that it is difficult to reduce the thickness.
- a main object of the present invention is to provide an input device and an input method that can prevent the occurrence of contact failure and can be thinned.
- An input device is provided with a signal line formed on a surface thereof, and a plurality of operation positions on a surface opposite to the surface opposite to the surface of the substrate.
- An input device having an insulating sheet that displays information!
- a signal transmission means for outputting a signal to a signal line, and a reflected wave detection for detecting a reflected wave of the signal output by the signal transmission means
- a calculation means for discriminating the operation position where the operation is performed based on the reflected wave detected by the reflected wave detection means.
- the signal line is formed on the substrate so as to pass near the operation position on the insulating sheet, and a ground line having a ground potential is formed in parallel with the signal line. You can do it.
- the calculation means is not operated based on the signal intensity of the signal output from the signal transmission means and the signal intensity of the reflected wave detected by the reflected wave detection means in the previous period. It is possible to determine the operated position.
- the calculation means performs time domain reflectivity measurement based on the signal intensity of the signal output from the signal transmission means and the signal intensity of the reflected wave detected by the reflected wave detection means in the previous period. And the operation position where the operation is performed may be determined based on the result of the time domain reflectivity measurement.
- the storage means stores in advance a table associating a time domain reflectance measurement (TDR) result with an input instruction
- the calculation means includes: Remember! You can specify the input instructions based on the table and the TDR result!
- the signal line is formed on the substrate so as to have a circular portion, and the calculation means discriminates an operation performed on the insulating sheet based on a change in the TDR result. May be.
- the input method according to the present invention includes a substrate having a signal line formed on a surface thereof, and a plurality of operation positions on a surface opposite to the surface opposed to the substrate, which is disposed relative to the surface of the substrate.
- the signal transmission means Based on the reflected wave detected by the reflected wave detecting means in the reflected wave detecting step, the reflected wave of the output signal is detected by the reflected wave detecting means, and the operation position at which the calculation means is operated And a calculation step for discriminating between.
- the input device does not have a mechanical switch structure, so that the input device can be made thin, and the occurrence of poor contact due to entry of foreign matter or the like can be prevented. .
- the coplanar line is formed by the signal line and the ground line.
- the signal line is formed on the substrate so that the distance between the portion passing through the vicinity of the operation position in the insulating sheet and the portion passing through the vicinity of the other operation position is increased. If so, the distance between the operation positions can be increased in a pseudo manner, and the frequency of the signal output by the signal transmission means can be lowered.
- the signal line is formed on the substrate so as to have a circular portion, and the input instruction is specified based on the change in the calculation step force TDR result.
- the input device can respond to input of an instruction according to the movement of the user's finger.
- FIG. 1 is a perspective view showing a configuration example of a key input device according to an embodiment of the present invention.
- FIG. 2 is a perspective view showing the structure of a communication path for electrical signals.
- FIG. 3 is a block diagram showing a configuration example of a microcomputer module.
- FIG. 4 An explanatory diagram showing a TDR waveform when impedance mismatch occurs in the coplanar line.
- FIG. 5 is an explanatory diagram showing a change in impedance.
- FIG. 6 is an explanatory diagram showing an example of a key map stored in a memory.
- FIG. 7 is an explanatory view showing a cross section of a substrate and a key sheet.
- FIG. 8 is an explanatory view showing a cross section of a pressed key sheet.
- FIG. 9 is a perspective view showing a key input device when a film is installed.
- FIG. 10 is a perspective view showing a key input device in which a part of a coplanar line is formed in a circular shape.
- FIG. 11 is an explanatory diagram showing a configuration of a conventional key unit used in a mobile terminal.
- FIG. 12 is an explanatory view showing a state in which the central portion of the metal plate is pressed.
- FIG. 1 is a perspective view showing a configuration example of a key input device (input device) according to an embodiment of the present invention.
- the key input device shown in FIG. 1 includes an elastic key sheet (insulating sheet) 1 mainly composed of silicon rubber or the like, and a substrate 6 on which a coplanar line 5 is formed.
- a number or the like is printed on one side of the key sheet 1, and a cone corresponding to a number or the like printed on one side of the other side
- a concave portion having a shape or a cylindrical shape is provided. That is, the position of the concave portion provided on one surface of the key sheet 1 corresponds to the position 2 of the key such as a number printed on the key sheet 1.
- a termination resistor 4 is installed at one end of the coplanar line 5 of the substrate 6, and a microcomputer module 3 is installed at the other end.
- the coplanar track 5 is formed so as to pass in the vicinity of each key such as a number printed on the key sheet 1.
- An interface line 21 is formed on the substrate 6 for connection between the microcomputer module 3 and other modules.
- FIG. 2 is a perspective view showing a structure of an electrical signal communication path.
- the coplanar line shown in FIG. 2 (a) is formed so that the signal line 10 formed on one surface of the substrate 6 is parallel to the signal line 10 and has the same cross-sectional area as the signal line 10. Including ground wire 11 with a ground potential.
- the microstrip line shown in FIG. 2B has a structure in which the signal line 10 is formed on one surface of the substrate 6 and the ground layer 12 having the ground potential is formed on the other surface.
- an inner conductor (signal line) 15 is provided at the center of the cylindrical line, and an outer conductor 13 is provided at the outer edge of the cylindrical line. And the outer conductor 1 3 are filled with a dielectric 14.
- FIG. 3 is a block diagram showing a configuration example of a part related to signal transmission / reception and calculation in the microcomputer module 3.
- the microcomputer module 3 shown in FIG. 3 includes a directional coupler 17, a signal transmitter (signal transmission means) 16, a signal detector (reflected wave detection means) 18, an arithmetic unit (calculation means) 19, and a memory (memory). Means) Including 20.
- Microcomputer module 3 uses the time domain reflectometry (TDR) method, which directly observes the reflected wave in the time domain, to detect the position of impedance mismatch in the coplanar line 5. To identify the input instruction.
- TDR time domain reflectometry
- the signal transmitter 16 outputs a signal while changing the frequency from 30 kHz to 3 GHz, for example. Further, the signal transmitter 16 outputs transmission signal strength information indicating the strength of the output signal to the calculator 19.
- the directional coupler 17 outputs the signal output from the signal transmitter 16 to the coplanar line 5 and outputs the reflected wave output from the coplanar line 5 to the signal detector 18.
- the signal detector 18 detects the reflected wave output from the directional coupler 17 and includes the reflected wave.
- Received signal strength information which is information indicating the signal strength of the signal, is output to the calculator 19.
- the computing unit 19 calculates the frequency domain reflectivity based on the transmission signal strength information and the received signal strength information, and calculates the time domain reflectivity by performing inverse Fourier transform on the calculated frequency domain reflectivity.
- the frequency domain reflectivity is the ratio of the signal intensity of the signal included in the reflected wave to the signal intensity of the signal of each frequency output from the signal transmitter 16.
- the time domain reflectivity is the rate of change of the reflected wave of the signal output from the signal transmitter 16 with respect to time.
- the memory 20 stores the TDR waveform in the case where there is no impedance mismatch, in order to measure the position where there is an impedance mismatch in the coplanar line 5 based on the time domain reflectivity.
- the memory 20 also includes a microcomputer module corresponding to the time from when the signal generator 16 outputs a signal until the impedance mismatch occurs (the time until the impedance of the coplanar line 5 changes).
- a key map is stored which associates the distance from the directional coupler 17 of 3 to the position where the impedance mismatch occurs and the key corresponding to the distance.
- FIG. 4 is an explanatory diagram showing a TDR waveform in a case where impedance mismatch occurs in the coplanar line 5!
- impedance mismatch occurs in the coplanar line 5!
- no reflected wave of the signal output from the signal transmitter 16 is generated. Therefore, as shown in Fig. 4, a flat TDR waveform can be obtained when the horizontal axis is time and the vertical axis is impedance.
- FIG. 5 is an explanatory diagram showing a change in impedance of the coplanar line 5.
- the signal transmitter 16 outputs a signal and the impedance changes after L seconds.
- FIG. 6 is an explanatory diagram showing an example of a key map stored in the memory 20. In the example shown in Fig. 6, if the impedance changes 2 tons after the signal generator 16 outputs a signal, an impedance mismatch occurs at a position where the distance from the microcomputer module 3 is 21. The “1” key corresponds to the corresponding number.
- the characteristic impedance of the coplanar line 5 is determined by the width and thickness of the signal line 10 and the ground line 11.
- the signal line 10 and the ground line 11 constituting the coplanar line 5 are each formed by one line in order to make the characteristic impedance uniform.
- the coplanar line 5 is formed on the substrate 6 in consideration of the TDR resolution. A path in which the coplanar line 5 is formed on the substrate 6 will be described.
- the distance between each key of a general mobile terminal is about 10mm. Therefore, in order to install a key input device in a mobile terminal, the TDR resolution must be less than 10 mm.
- the resolution of TDR is 1Z4, which is the wavelength of the signal with the highest frequency among the signals output from the signal transmitter 16. Therefore, the signal transmitter 16 must output a signal with a frequency of 7.5 GHz.
- the signal since the high frequency signal has a strong straightness, the signal may be radiated from the coplanar line 5. Therefore, in order to lower the frequency of the signal output from the signal transmitter 16, the path of the coplanar line 5 is bent in the substrate 6 so that the distance between the keys is increased pseudo. That is, the coplanar line 5 is formed to be bent in order to increase the distance between the portions of the key sheet 1 that pass through the vicinity of each key.
- FIG. 7 is an explanatory view showing a cross section of the substrate 6 and the key sheet 1.
- a signal line 10 and a ground line 11 are formed on the surface of the substrate 6 facing the key sheet 1.
- the width and height of the conductor portions of the signal line 10 and the ground line 11 are uniform. Note that the width and height of the conductor portions of the signal line 10 and the ground line 11 and the cross-sectional shape of the key sheet 1 in the vicinity of the signal line 10 indicate which part of the characteristic impedance of the coplanar line 5 (see FIG. 1) But they are set to be the same. That is, when the key sheet 1 is not pressed, no impedance mismatch occurs in the coplanar line 5 including the signal line 10 and the ground line 11. That is, as shown in FIG.
- the signal line 10 and the ground line are arranged so as to pass through the concave portion provided on the surface of the key sheet 1 facing the board 6 on the surface of the board 6.
- the coplanar track made up of 11 there is a gap between the key sheet 1 and the substrate facing surface when the key sheet 1 is not pressed.
- FIG. 8 is an explanatory view showing a cross section of the pressed key sheet 1.
- the dielectric key sheet 1 deforms (stagnation) and hits the coplanar line 5 (see FIG. 1) composed of the signal line 10 and the rounded line 11.
- the coplanar line 5 As shown in FIG. 8, when the key sheet 1 is pressed, the dielectric key sheet 1 deforms (stagnation) and hits the coplanar line 5 (see FIG. 1) composed of the signal line 10 and the rounded line 11.
- Dielectric constant changes. Therefore, impedance mismatch occurs in the coplanar line.
- a reflected wave of the signal output from the microcomputer module 3 (see Fig. 1) is generated at the position where the impedance mismatch in the coplanar line 5 occurs.
- the reflected wave of the signal output from the microcomputer module 3 travels through the coplanar line 5 toward the microcomputer module 3.
- the signal transmitter 16 always outputs a signal by continuously changing the frequency from a low frequency (for example, 30 kHz) force to a high frequency (for example, 3 GHz) (step S 101). Then, the signal transmitter 16 outputs transmission signal strength information, which is information indicating the strength of the output signal, to the computing unit 19 (step S102).
- a low frequency for example, 30 kHz
- a high frequency for example, 3 GHz
- the directional coupler 17 outputs the signal output from the signal transmitter 16 to the coplanar line 5 (step S103).
- a reflected wave is output from the coplanar line 5 to the directional coupler 17 (step S104).
- the directional coupler 17 outputs the output reflected wave to the signal detector 18 (step S105).
- the signal detector 18 detects the reflected wave output from the directional coupler 17 and outputs received signal intensity information, which is information indicating the intensity of the signal included in the reflected wave, to the computing unit 19 (step S106).
- the computing unit 19 in FIG. 3 calculates the frequency domain reflectivity based on the transmission signal strength information output from the signal transmitter 16 and the received signal strength information output from the signal detector 18. Then, the computing unit 19 performs inverse Fourier transform on the calculated frequency domain reflectivity to obtain a TDR result (TDR waveform).
- the time until the impedance changes in the TDR waveform shown in FIG. 5 is proportional to the distance between the position where the impedance mismatch occurs and the directional coupler 17 of the microcomputer module 3. For this reason, the arithmetic unit 19 refers to the key map stored in the memory 20 illustrated in FIG. 6 until the impedance of the TDR waveform shows a change. Based on the time, it is possible to determine which key is pressed (steps S107 and S108 shown in FIG. 3).
- the arithmetic unit 19 specifies the input instruction based on the determined result.
- the arithmetic unit 19 outputs information indicating the specified input (pressed) instruction (key) to control means such as a portable terminal in which the input device is mounted.
- the key input device is configured by the substrate 6 on which the coplanar line 5 is formed and the elastic key sheet 1. Therefore, a dome-shaped recess as shown in FIG. 11 is not necessary. Therefore, the key input device can be reduced in thickness.
- the key input device has the effect of not causing deterioration or failure due to mechanical wear.
- operation failure such as contact failure does not occur.
- FIG. 9 is a perspective view showing the key input device when the film 23 is installed on the surface on which the coplanar line 5 of the substrate 6 is formed instead of the key sheet 1 where the key position is shown. is there.
- FIG. 10 is a perspective view showing a key input device in which a part of the coplanar line 5 is formed in a circular shape.
- the computing unit 19 calculates the operation position where the operation is performed based on the reflected wave detected by the signal detector (reflected wave detecting unit) 18. The time until the detector 18 detects the reflected wave is measured, and based on the measured time, the distance between the signal detector 18 and the operated position is calculated to determine the operated position. That means.
- the computing unit 19 operates based on the signal intensity of the signal output from the signal transmitter (signal transmitting means) 16 and the signal intensity of the reflected wave detected by the signal detector (reflected wave detecting means) 18. To determine the operation position where the error has been made, the computing unit 19 compares the signal intensity of the signal output from the signal transmitter 16 with the signal intensity of the reflected wave detected by the signal detector (reflected wave detecting means) 18.
- the signal detector 18 determines that the reflected wave is detected at the timing when the signal detector 18 detects a signal having a signal strength different from that of the signal output from the signal transmitter 16, and the signal detector 18 It means that the operation position where the operation is performed is determined by calculating the distance between the signal detector 18 and the operation position where the operation is performed based on the time until the reflected wave is detected.
- the computing unit 19 performs time-domain reflectivity measurement based on the signal strength of the signal output from the signal transmitter 16 and the reflected signal strength detected by the signal detector 18. However, the signal intensity of the signal output by the signal transmitter 16 changing the frequency is compared with the signal intensity of each frequency signal included in the reflected wave detected by the signal detector 18 to calculate the frequency domain reflectivity. This means performing time domain reflectivity measurement by inverse Fourier transforming the calculated frequency domain reflectivity.
- the computing unit 19 determines the operation position where the operation is performed based on the TDR result that is the result of the time domain reflectance measurement, the computing unit 19 determines that the time domain reflectance has changed. The distance between the signal detector 18 and the operation position where the operation was performed is calculated based on the operation, and the operation position that was operated is determined!
- the computing unit 19 When the computing unit 19 identifies the input instruction based on the table stored in the storage means and the TDR result, the computing unit 19 receives the timing at which the time-domain reflectivity changes and the input This refers to determining that an instruction according to the timing at which the time domain reflectivity is changed is an input instruction with reference to a table that associates the received instruction.
- the present invention can be used for an input device such as a portable terminal.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Push-Button Switches (AREA)
- Input From Keyboards Or The Like (AREA)
- Telephone Set Structure (AREA)
Abstract
Description
Claims
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2008507484A JP5298848B2 (ja) | 2006-03-29 | 2007-03-26 | 入力装置および入力方法 |
| EP07739615.8A EP2000887B1 (en) | 2006-03-29 | 2007-03-26 | Inputting apparatus and inputting method |
| CN200780007254.4A CN101395560B (zh) | 2006-03-29 | 2007-03-26 | 输入装置以及输入方法 |
| US12/281,199 US8286489B2 (en) | 2006-03-29 | 2007-03-26 | Input apparatus and input method |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006-091791 | 2006-03-29 | ||
| JP2006091791 | 2006-03-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2007111291A1 true WO2007111291A1 (ja) | 2007-10-04 |
Family
ID=38541208
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2007/056177 Ceased WO2007111291A1 (ja) | 2006-03-29 | 2007-03-26 | 入力装置および入力方法 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US8286489B2 (ja) |
| EP (1) | EP2000887B1 (ja) |
| JP (1) | JP5298848B2 (ja) |
| CN (1) | CN101395560B (ja) |
| WO (1) | WO2007111291A1 (ja) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017162499A (ja) * | 2011-09-30 | 2017-09-14 | カナトゥ オイ | 接触検知膜、接触検知装置及び電子装置 |
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8599155B2 (en) * | 2010-04-30 | 2013-12-03 | Microchip Technology Incorporated | Touch sense using time domain reflectometry |
| CN102012786A (zh) * | 2010-11-15 | 2011-04-13 | 中兴通讯股份有限公司 | 按键实现方法、按键系统及移动终端 |
| US8972214B2 (en) * | 2011-04-21 | 2015-03-03 | Microchip Technology Incorporated | Touch sense determined by characterizing impedance changes in a transmission line |
| US20140132523A1 (en) * | 2012-11-13 | 2014-05-15 | David Brent GUARD | Touch Sensing Based On Signal Reflections |
| US10067607B2 (en) * | 2014-01-17 | 2018-09-04 | Lg Innotek Co., Ltd. | Time domain reflectometry touch window sensor |
| KR102152857B1 (ko) * | 2014-05-08 | 2020-09-07 | 엘지이노텍 주식회사 | 터치 윈도우 |
| KR102175668B1 (ko) * | 2014-05-14 | 2020-11-06 | 엘지이노텍 주식회사 | 전자 장치 |
| WO2015170836A1 (en) * | 2014-05-08 | 2015-11-12 | Lg Innotek Co., Ltd. | Electronic device |
| JP2016180747A (ja) * | 2015-03-24 | 2016-10-13 | パナソニックIpマネジメント株式会社 | 感圧センサ |
| CN106383622A (zh) * | 2016-09-19 | 2017-02-08 | 广州视源电子科技股份有限公司 | Tdr扫描式触摸屏、触摸扫描定位方法及触控液晶显示屏 |
| CN106371668A (zh) * | 2016-09-19 | 2017-02-01 | 广州视源电子科技股份有限公司 | 触摸物形状识别方法、装置及触摸屏 |
| CN106354330B (zh) * | 2016-09-19 | 2020-07-28 | 广州视源电子科技股份有限公司 | 基于用户输入压力的触屏响应方法及装置 |
| CN106371683A (zh) * | 2016-09-19 | 2017-02-01 | 广州视源电子科技股份有限公司 | Tdr触控屏及触控定位方法 |
| CN106406646A (zh) * | 2016-09-19 | 2017-02-15 | 广州视源电子科技股份有限公司 | Tdr扫描式触摸屏及触摸扫描定位方法 |
| CN106249962A (zh) * | 2016-09-19 | 2016-12-21 | 广州视源电子科技股份有限公司 | Tdr扫描式触控屏及触控定位方法 |
| CN106406649A (zh) * | 2016-09-19 | 2017-02-15 | 广州视源电子科技股份有限公司 | Tdr触摸屏及触摸扫描定位方法 |
| CN106468974B (zh) * | 2016-09-19 | 2020-03-17 | 广州视源电子科技股份有限公司 | 触摸屏校准方法及触摸扫描定位方法 |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0483519A1 (en) | 1990-10-29 | 1992-05-06 | International Business Machines Corporation | Touch sensitive overlay |
| JPH054254U (ja) * | 1991-07-02 | 1993-01-22 | 横河電機株式会社 | 入力装置 |
| JPH11194883A (ja) * | 1998-01-06 | 1999-07-21 | Poseidon Technical Systems:Kk | タッチ操作型コンピュータ |
| US6137282A (en) | 1998-06-25 | 2000-10-24 | Becs Technology, Inc. | Time-domain reflectometry user input device |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2964667B2 (ja) | 1991-03-04 | 1999-10-18 | 株式会社スリーボンド | 異材質複合射出成形装置 |
| TW241352B (en) | 1994-03-30 | 1995-02-21 | Whitaker Corp | Reflective mode ultrasonic touch sensitive switch |
| CN100374988C (zh) * | 2000-09-22 | 2008-03-12 | 北京青谷科技有限公司 | 超声波手写键盘 |
| US20050088417A1 (en) * | 2003-10-24 | 2005-04-28 | Mulligan Roger C. | Tactile touch-sensing system |
| US7412119B2 (en) * | 2004-06-30 | 2008-08-12 | Poa Sana Liquidating Trust | Apparatus and method for making flexible waveguide substrates for use with light based touch screens |
| US8184108B2 (en) * | 2004-06-30 | 2012-05-22 | Poa Sana Liquidating Trust | Apparatus and method for a folded optical element waveguide for use with light based touch screens |
| US8120595B2 (en) * | 2006-05-01 | 2012-02-21 | Rpo Pty Limited | Waveguide materials for optical touch screens |
-
2007
- 2007-03-26 WO PCT/JP2007/056177 patent/WO2007111291A1/ja not_active Ceased
- 2007-03-26 CN CN200780007254.4A patent/CN101395560B/zh not_active Expired - Fee Related
- 2007-03-26 EP EP07739615.8A patent/EP2000887B1/en not_active Not-in-force
- 2007-03-26 US US12/281,199 patent/US8286489B2/en not_active Expired - Fee Related
- 2007-03-26 JP JP2008507484A patent/JP5298848B2/ja not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0483519A1 (en) | 1990-10-29 | 1992-05-06 | International Business Machines Corporation | Touch sensitive overlay |
| JPH054254U (ja) * | 1991-07-02 | 1993-01-22 | 横河電機株式会社 | 入力装置 |
| JPH11194883A (ja) * | 1998-01-06 | 1999-07-21 | Poseidon Technical Systems:Kk | タッチ操作型コンピュータ |
| US6137282A (en) | 1998-06-25 | 2000-10-24 | Becs Technology, Inc. | Time-domain reflectometry user input device |
Non-Patent Citations (1)
| Title |
|---|
| See also references of EP2000887A4 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017162499A (ja) * | 2011-09-30 | 2017-09-14 | カナトゥ オイ | 接触検知膜、接触検知装置及び電子装置 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101395560A (zh) | 2009-03-25 |
| EP2000887A1 (en) | 2008-12-10 |
| CN101395560B (zh) | 2013-07-24 |
| EP2000887B1 (en) | 2013-07-17 |
| JP5298848B2 (ja) | 2013-09-25 |
| EP2000887A4 (en) | 2010-07-28 |
| JPWO2007111291A1 (ja) | 2009-08-13 |
| US20090013788A1 (en) | 2009-01-15 |
| US8286489B2 (en) | 2012-10-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2007111291A1 (ja) | 入力装置および入力方法 | |
| US11435242B2 (en) | Increasing sensitivity of a sensor using an encoded signal | |
| CN107505540B (zh) | 用于电力设备的诊断系统 | |
| EP2187226B1 (en) | Ultra-high frequency partial discharge array sensor apparatus for high-voltage power apparatus | |
| US20090194341A1 (en) | Method and device for operating a resistive touch input component as a proximity sensor | |
| CN105806445A (zh) | 多变量导波雷达探针 | |
| US10509514B2 (en) | Touch device capable of detecting touch events through vibration | |
| JP2013152581A (ja) | 検出装置、検出方法、および表示装置 | |
| CN107980156A (zh) | 柔性显示屏、柔性显示屏的弯折检测方法及装置 | |
| WO2022189141A1 (en) | Acoustic proximity detection for computers with reduced power consumption | |
| WO2010063885A1 (en) | Read-out line | |
| US20230315235A1 (en) | Ultrasonic transducer | |
| US20140062501A1 (en) | Electrical connection assembly and testing method thereof | |
| KR101417191B1 (ko) | 전력기기의 위험도 분석 시스템 및 그 방법 | |
| KR20200119532A (ko) | 부분방전 진단 및 위치 검출 방법 | |
| US7659889B2 (en) | Touch panel device | |
| KR101192392B1 (ko) | 터치스크린 모듈용 강화유리의 평탄도 검사장치 | |
| US7253636B2 (en) | Wire tracer receiver | |
| CN113838373B (zh) | 显示面板、检测方法和显示装置 | |
| JP2019109073A5 (ja) | 検知システム、検知方法、構造体及び端末 | |
| KR100651886B1 (ko) | 안테나 터치 센서를 이용한 이동통신 단말기의 수신감도알람 장치 및 방법 | |
| CN106371683A (zh) | Tdr触控屏及触控定位方法 | |
| CN211013271U (zh) | 一种基于无源无线温度传感器的测温装置 | |
| US20250004033A1 (en) | A sensor device, a system, a method and a computer program for detection of electrical abnormalities in association with electrical equipment | |
| JP2008164380A (ja) | 湿度センサ装置 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 07739615 Country of ref document: EP Kind code of ref document: A1 |
|
| ENP | Entry into the national phase |
Ref document number: 2008507484 Country of ref document: JP Kind code of ref document: A |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 2007739615 Country of ref document: EP |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 200780007254.4 Country of ref document: CN Ref document number: 12281199 Country of ref document: US |
|
| NENP | Non-entry into the national phase |
Ref country code: DE |