CN110476144A - 压力检测芯片和检测压力的方法 - Google Patents
压力检测芯片和检测压力的方法 Download PDFInfo
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- CN110476144A CN110476144A CN201880000276.6A CN201880000276A CN110476144A CN 110476144 A CN110476144 A CN 110476144A CN 201880000276 A CN201880000276 A CN 201880000276A CN 110476144 A CN110476144 A CN 110476144A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
- G01L19/0092—Pressure sensor associated with other sensors, e.g. for measuring acceleration or temperature
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
- G01L1/26—Auxiliary measures taken, or devices used, in connection with the measurement of force, e.g. for preventing influence of transverse components of force, for preventing overload
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
- G01L1/14—Measuring force or stress, in general by measuring variations in capacitance or inductance of electrical elements, e.g. by measuring variations of frequency of electrical oscillators
- G01L1/142—Measuring force or stress, in general by measuring variations in capacitance or inductance of electrical elements, e.g. by measuring variations of frequency of electrical oscillators using capacitors
- G01L1/144—Measuring force or stress, in general by measuring variations in capacitance or inductance of electrical elements, e.g. by measuring variations of frequency of electrical oscillators using capacitors with associated circuitry
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
- G01L1/14—Measuring force or stress, in general by measuring variations in capacitance or inductance of electrical elements, e.g. by measuring variations of frequency of electrical oscillators
- G01L1/142—Measuring force or stress, in general by measuring variations in capacitance or inductance of electrical elements, e.g. by measuring variations of frequency of electrical oscillators using capacitors
- G01L1/146—Measuring force or stress, in general by measuring variations in capacitance or inductance of electrical elements, e.g. by measuring variations of frequency of electrical oscillators using capacitors for measuring force distributions, e.g. using force arrays
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
- G01L19/0061—Electrical connection means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L9/00—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means
- G01L9/0026—Transmitting or indicating the displacement of flexible, deformable tubes by electric, electromechanical, magnetic or electromagnetic means
- G01L9/003—Transmitting or indicating the displacement of flexible, deformable tubes by electric, electromechanical, magnetic or electromagnetic means using variations in capacitance
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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
-
- 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
- G06F3/0414—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means using force sensing means to determine a position
-
- 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
- G06F3/0416—Control or interface arrangements specially adapted for digitisers
- G06F3/0418—Control or interface arrangements specially adapted for digitisers for error correction or compensation, e.g. based on parallax, calibration or alignment
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- 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
- H03K17/965—Switches controlled by moving an element forming part of the switch
- H03K17/975—Switches controlled by moving an element forming part of the switch using a capacitive movable element
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
- G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
- G06F2203/04105—Pressure sensors for measuring the pressure or force exerted on the touch surface without providing the touch position
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
- G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
- G06F2203/04106—Multi-sensing digitiser, i.e. digitiser using at least two different sensing technologies simultaneously or alternatively, e.g. for detecting pen and finger, for saving power or for improving position detection
-
- 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
- G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
- G06F3/0447—Position sensing using the local deformation of sensor cells
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Human Computer Interaction (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Electromagnetism (AREA)
- Measuring Fluid Pressure (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
- Electronic Switches (AREA)
Abstract
一种压力检测芯片和检测压力的方法,该方法由包括抵消电路(120)和耦合电路(200)的压力检测装置(300)执行,该抵消电路(120)和耦合电路(200)并联,该耦合电路(200)包括具有第一电极层与第二电极层的可变电容部件,该第一电极层在受到触摸压力时与该第二电极层之间的距离改变。该压力检测方法包括:向该抵消电路输入第一输入信号并输出第一输出信号(S410);向该耦合电路输入第二输入信号并输出第二输出信号,该第一输入信号与该第二输入信号的相位相差180度,该第一输出信号用于抵消该第二输出信号(S420);根据该第一输出信号与该第二输出信号,确定该第一电极层是否受到该触摸压力(S430)。该压力检测芯片和检测压力的方法,能够提高压力检测的灵敏度。
Description
PCT国内申请,说明书已公开。
Claims (22)
- PCT国内申请,权利要求书已公开。
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/CN2018/078677 WO2019173934A1 (zh) | 2018-03-12 | 2018-03-12 | 压力检测芯片和检测压力的方法 |
Publications (2)
Publication Number | Publication Date |
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CN110476144A true CN110476144A (zh) | 2019-11-19 |
CN110476144B CN110476144B (zh) | 2023-05-26 |
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CN201880000276.6A Active CN110476144B (zh) | 2018-03-12 | 2018-03-12 | 压力检测芯片和检测压力的方法 |
Country Status (4)
Country | Link |
---|---|
US (1) | US11099092B2 (zh) |
EP (1) | EP3567461B1 (zh) |
CN (1) | CN110476144B (zh) |
WO (1) | WO2019173934A1 (zh) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112333907A (zh) * | 2020-11-10 | 2021-02-05 | 上海安平静电科技有限公司 | 一种离子棒消电装置及消电控制方法 |
CN113031770A (zh) * | 2021-03-22 | 2021-06-25 | 联想(北京)有限公司 | 一种处理方法及电子设备 |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPWO2023002709A1 (zh) * | 2021-07-20 | 2023-01-26 |
Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20110175844A1 (en) * | 2010-01-19 | 2011-07-21 | Sony Ericsson Mobile Communications Ab | Touch sensing device, touch screen device comprising the touch sensing device, mobile device, method for sensing a touch and method for manufacturing a touch sensing device |
US20160148034A1 (en) * | 2014-11-25 | 2016-05-26 | Cypress Semiconductor Corporation | Methods and Sensors for MultiPhase Scanning in the Fingerprint and Touch Applications |
US20160282991A1 (en) * | 2015-03-26 | 2016-09-29 | Pixart Imaging Inc. | Capacitive touch device with high sensitivity and operating method thereof |
CN106104441A (zh) * | 2016-06-16 | 2016-11-09 | 深圳市汇顶科技股份有限公司 | 触摸传感器、触摸检测装置及检测方法、触控设备 |
CN205809842U (zh) * | 2016-06-15 | 2016-12-14 | 深圳市汇顶科技股份有限公司 | 压力检测装置、触控设备及电子终端 |
EP3128400A1 (en) * | 2015-08-03 | 2017-02-08 | HiDeep Inc. | Touch detector, touch detection chip and touch input device |
CN107168565A (zh) * | 2016-03-07 | 2017-09-15 | 敦泰电子股份有限公司 | 触控装置及其驱动电路和驱动方法、电子设备 |
US20170315662A1 (en) * | 2016-04-29 | 2017-11-02 | Synaptics Incorporated | Differential force and touch sensing |
CN107438998A (zh) * | 2017-06-05 | 2017-12-05 | 深圳市汇顶科技股份有限公司 | 接近的检测装置和方法、接近感应传感器、终端设备 |
CN107479776A (zh) * | 2017-08-03 | 2017-12-15 | 京东方科技集团股份有限公司 | 压感检测电路及其驱动方法、电子装置 |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8711120B2 (en) * | 2012-07-16 | 2014-04-29 | Synaptics Incorporated | Single integrated circuit configured to operate both a capacitive proximity sensor device and a resistive pointing stick |
US9582123B2 (en) * | 2012-11-26 | 2017-02-28 | Qualcomm Incorporated | Dual-mode capacitance sensing in a touch panel sensor |
JP2014132415A (ja) * | 2013-01-07 | 2014-07-17 | Tokai Rika Co Ltd | タッチ式入力装置 |
JP5954500B2 (ja) * | 2013-09-27 | 2016-07-20 | 株式会社村田製作所 | タッチ式入力装置 |
US10229304B2 (en) * | 2015-06-05 | 2019-03-12 | Synaptics Incorporated | Finger detection with auto-baseline tracking |
TWI615760B (zh) | 2015-08-06 | 2018-02-21 | 矽創電子股份有限公司 | 觸控偵測方法與電容式感測裝置 |
US10068121B2 (en) * | 2015-08-31 | 2018-09-04 | Cypress Semiconductor Corporation | Baseline compensation for capacitive sensing |
US20170160866A1 (en) | 2015-12-08 | 2017-06-08 | Innolux Corporation | Touch display device |
CN106855760B (zh) * | 2015-12-08 | 2020-06-09 | 群创光电股份有限公司 | 具压力感测功能的触控显示装置 |
TWI578206B (zh) | 2016-03-24 | 2017-04-11 | 速博思股份有限公司 | 整合觸控與壓力感測之裝置及其方法 |
CN105930019B (zh) * | 2016-07-01 | 2019-04-30 | 京东方科技集团股份有限公司 | 一种触摸屏及显示装置 |
CN106054433B (zh) * | 2016-08-11 | 2019-11-05 | 厦门天马微电子有限公司 | 一种显示面板及其驱动方法、显示装置 |
DE112017007864T5 (de) * | 2017-11-14 | 2020-05-28 | Wacom Co., Ltd. | Sensorsteuerung |
-
2018
- 2018-03-12 EP EP18889970.2A patent/EP3567461B1/en active Active
- 2018-03-12 WO PCT/CN2018/078677 patent/WO2019173934A1/zh unknown
- 2018-03-12 CN CN201880000276.6A patent/CN110476144B/zh active Active
-
2019
- 2019-06-22 US US16/449,375 patent/US11099092B2/en active Active
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20110175844A1 (en) * | 2010-01-19 | 2011-07-21 | Sony Ericsson Mobile Communications Ab | Touch sensing device, touch screen device comprising the touch sensing device, mobile device, method for sensing a touch and method for manufacturing a touch sensing device |
US20160148034A1 (en) * | 2014-11-25 | 2016-05-26 | Cypress Semiconductor Corporation | Methods and Sensors for MultiPhase Scanning in the Fingerprint and Touch Applications |
US20160282991A1 (en) * | 2015-03-26 | 2016-09-29 | Pixart Imaging Inc. | Capacitive touch device with high sensitivity and operating method thereof |
EP3128400A1 (en) * | 2015-08-03 | 2017-02-08 | HiDeep Inc. | Touch detector, touch detection chip and touch input device |
CN107168565A (zh) * | 2016-03-07 | 2017-09-15 | 敦泰电子股份有限公司 | 触控装置及其驱动电路和驱动方法、电子设备 |
US20170315662A1 (en) * | 2016-04-29 | 2017-11-02 | Synaptics Incorporated | Differential force and touch sensing |
CN205809842U (zh) * | 2016-06-15 | 2016-12-14 | 深圳市汇顶科技股份有限公司 | 压力检测装置、触控设备及电子终端 |
CN106104441A (zh) * | 2016-06-16 | 2016-11-09 | 深圳市汇顶科技股份有限公司 | 触摸传感器、触摸检测装置及检测方法、触控设备 |
CN107438998A (zh) * | 2017-06-05 | 2017-12-05 | 深圳市汇顶科技股份有限公司 | 接近的检测装置和方法、接近感应传感器、终端设备 |
CN107479776A (zh) * | 2017-08-03 | 2017-12-15 | 京东方科技集团股份有限公司 | 压感检测电路及其驱动方法、电子装置 |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112333907A (zh) * | 2020-11-10 | 2021-02-05 | 上海安平静电科技有限公司 | 一种离子棒消电装置及消电控制方法 |
CN112333907B (zh) * | 2020-11-10 | 2023-03-21 | 上海安平静电科技有限公司 | 一种离子棒消电装置及消电控制方法 |
CN113031770A (zh) * | 2021-03-22 | 2021-06-25 | 联想(北京)有限公司 | 一种处理方法及电子设备 |
CN113031770B (zh) * | 2021-03-22 | 2024-02-27 | 联想(北京)有限公司 | 一种处理方法及电子设备 |
Also Published As
Publication number | Publication date |
---|---|
EP3567461A4 (en) | 2019-12-11 |
EP3567461B1 (en) | 2021-01-13 |
US11099092B2 (en) | 2021-08-24 |
WO2019173934A1 (zh) | 2019-09-19 |
US20190310154A1 (en) | 2019-10-10 |
EP3567461A1 (en) | 2019-11-13 |
CN110476144B (zh) | 2023-05-26 |
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