CN104685457B - 噪声检测及校正例程 - Google Patents

噪声检测及校正例程 Download PDF

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Publication number
CN104685457B
CN104685457B CN201380050670.8A CN201380050670A CN104685457B CN 104685457 B CN104685457 B CN 104685457B CN 201380050670 A CN201380050670 A CN 201380050670A CN 104685457 B CN104685457 B CN 104685457B
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China
Prior art keywords
noise
delays
sampled waveform
touch
sensor measurement
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Chinese (zh)
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CN104685457A (zh
Inventor
安德鲁·沃利斯
伯克·戴维森
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Microchip Technology Inc
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Microchip Technology Inc
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    • 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
    • G06F3/03—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
    • G06F3/0446—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
    • G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
    • G01R27/26—Measuring inductance or capacitance; Measuring quality factor, e.g. by using the resonance method; Measuring loss factor; Measuring dielectric constants ; Measuring impedance or related variables
    • G01R27/2605—Measuring capacitance
    • 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
    • H03K17/945—Proximity switches
    • H03K17/955—Proximity switches using a capacitive detector
    • 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
    • G06F3/03—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
    • G06F3/0443—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using a single layer of sensing electrodes
    • 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
    • G06F3/03—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
    • G06F3/0445—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using two or more layers of sensing electrodes, e.g. using two layers of electrodes separated by a dielectric layer

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Human Computer Interaction (AREA)
  • Position Input By Displaying (AREA)
  • Indication And Recording Devices For Special Purposes And Tariff Metering Devices (AREA)
CN201380050670.8A 2012-09-13 2013-09-13 噪声检测及校正例程 Active CN104685457B (zh)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US201261700399P 2012-09-13 2012-09-13
US61/700,399 2012-09-13
US14/025,143 2013-09-12
US14/025,143 US9568526B2 (en) 2012-09-13 2013-09-12 Noise detection and correction routines
PCT/US2013/059630 WO2014043453A1 (en) 2012-09-13 2013-09-13 Noise detection and correction routines

Publications (2)

Publication Number Publication Date
CN104685457A CN104685457A (zh) 2015-06-03
CN104685457B true CN104685457B (zh) 2018-03-20

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201380050670.8A Active CN104685457B (zh) 2012-09-13 2013-09-13 噪声检测及校正例程

Country Status (7)

Country Link
US (1) US9568526B2 (enExample)
EP (1) EP2895943B1 (enExample)
JP (1) JP6219959B2 (enExample)
KR (1) KR102151672B1 (enExample)
CN (1) CN104685457B (enExample)
TW (1) TWI616796B (enExample)
WO (1) WO2014043453A1 (enExample)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI484396B (zh) * 2013-04-16 2015-05-11 Ene Technology Inc A method for filtering an interference source and a touch sensing device
KR102098878B1 (ko) * 2013-09-03 2020-04-08 엘지디스플레이 주식회사 터치 센서를 갖는 전자장치와 이의 구동 방법
US9600121B2 (en) * 2014-04-25 2017-03-21 Synaptics Incorporated Driving sensor electrodes for noise measurement
DE112014003074B4 (de) * 2014-06-02 2021-01-14 Mitsubishi Electric Corporation Rauschenanalysevorrichtung, elektronisches Gerät und Rauschquellenidentifikationssystem
US9772725B2 (en) * 2014-09-24 2017-09-26 Synaptics Incorporated Hybrid sensing to reduce latency
CN106249970B (zh) * 2015-06-05 2020-11-27 恩智浦美国有限公司 具有噪声抑制的电容传感器
US10444892B2 (en) * 2015-10-07 2019-10-15 Microchip Technology Incorporated Capacitance measurement device with reduced noise
US9904412B2 (en) * 2015-12-30 2018-02-27 Synaptics Incorporated Display noise subtraction via substantially orthogonal noise templates
US10466839B2 (en) * 2016-03-30 2019-11-05 Synaptics Incorporated Dynamic differential algorithm for side touch signals
TWI588714B (zh) * 2016-09-01 2017-06-21 友達光電股份有限公司 時序控制器及觸控面板的雜訊抑制方法
US20190137549A1 (en) * 2017-11-03 2019-05-09 Velodyne Lidar, Inc. Systems and methods for multi-tier centroid calculation
KR102566581B1 (ko) * 2019-11-19 2023-08-11 알프스 알파인 가부시키가이샤 정전 용량식 센서, 정전 용량 검출 방법, 및 정전 용량 검출 프로그램
TWI758978B (zh) * 2020-11-30 2022-03-21 創意電子股份有限公司 時脈樹的修正裝置及其修正方法
JP7752983B2 (ja) * 2021-07-16 2025-10-14 アルプスアルパイン株式会社 接触判定装置
WO2025188353A1 (en) * 2024-03-05 2025-09-12 Microchip Technology Incorporated Electronic device including a touch detection system and a noise detection system
CN120595959A (zh) 2024-03-05 2025-09-05 微芯片技术股份有限公司 包括触摸检测系统和噪声检测系统的电子设备
CN119935305B (zh) * 2025-04-03 2025-06-27 青岛智腾微电子有限公司 基于多元数据融合处理的噪声传感器运行监测系统及方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201590059U (zh) * 2009-09-27 2010-09-22 智点科技（深圳）有限公司 一种触控电路
US20110115729A1 (en) * 2009-10-20 2011-05-19 Cypress Semiconductor Corporation Method and apparatus for reducing coupled noise influence in touch screen controllers
CN102138121A (zh) * 2009-06-29 2011-07-27 索尼公司 电容性触摸面板及具有触摸检测功能的显示设备
CN102236488A (zh) * 2010-04-22 2011-11-09 马克西姆综合产品公司 使用随机采样技术降低手指耦合噪声
US20120049869A1 (en) * 2010-08-24 2012-03-01 Cypress Semiconductor Corporation Noise suppression and/or reduction circuits and methods for capacitance sensing systems

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04371916A (ja) * 1991-06-20 1992-12-24 Alps Electric Co Ltd 液晶表示装置
US5789689A (en) 1997-01-17 1998-08-04 Doidic; Michel Tube modeling programmable digital guitar amplification system
JP2006079405A (ja) * 2004-09-10 2006-03-23 Oki Electric Ind Co Ltd 情報処理装置、及び情報処理装置の制御方法
KR20060133330A (ko) * 2005-06-20 2006-12-26 삼성전자주식회사 터치 스크린이 내장된 액정 표시 장치 및 터치 스크린의신호 처리 방법
JP2007208682A (ja) * 2006-02-02 2007-08-16 Matsushita Electric Ind Co Ltd タッチパネル
US8279180B2 (en) * 2006-05-02 2012-10-02 Apple Inc. Multipoint touch surface controller
US7825672B2 (en) * 2006-06-19 2010-11-02 Mrl Industries, Inc. High accuracy in-situ resistance measurements methods
US8125441B2 (en) 2006-11-20 2012-02-28 Cypress Semiconductor Corporation Discriminating among activation of multiple buttons
JP2009130730A (ja) * 2007-11-26 2009-06-11 Fujitsu Microelectronics Ltd ２次元固体撮像素子、そのノイズ検出方法、補正方法およびプログラム
JP2010015262A (ja) * 2008-07-01 2010-01-21 Seiko Instruments Inc 静電検出装置及び静電検出方法
TWI431520B (zh) * 2009-08-14 2014-03-21 Elan Microelectronics Corp Front - end signal detectors and methods for improving the anti - noise capability of capacitive touch panels
WO2011047698A1 (en) * 2009-10-21 2011-04-28 Verigy (Singapore) Pte. Ltd. Apparatus comprising a recursive delayer and method for measuring a phase noise
KR20110091380A (ko) * 2010-02-05 2011-08-11 삼성전자주식회사 터치 패널의 노이즈 보상 방법 및 장치
US20130268229A1 (en) * 2012-04-04 2013-10-10 Ridgetop Group, Inc. Method for finding fault-to-failure signatures using ordered health states

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102138121A (zh) * 2009-06-29 2011-07-27 索尼公司 电容性触摸面板及具有触摸检测功能的显示设备
CN201590059U (zh) * 2009-09-27 2010-09-22 智点科技（深圳）有限公司 一种触控电路
US20110115729A1 (en) * 2009-10-20 2011-05-19 Cypress Semiconductor Corporation Method and apparatus for reducing coupled noise influence in touch screen controllers
CN102236488A (zh) * 2010-04-22 2011-11-09 马克西姆综合产品公司 使用随机采样技术降低手指耦合噪声
US20120049869A1 (en) * 2010-08-24 2012-03-01 Cypress Semiconductor Corporation Noise suppression and/or reduction circuits and methods for capacitance sensing systems

Also Published As

Publication number Publication date
EP2895943A1 (en) 2015-07-22
US20140074436A1 (en) 2014-03-13
CN104685457A (zh) 2015-06-03
EP2895943B1 (en) 2020-07-15
TWI616796B (zh) 2018-03-01
KR102151672B1 (ko) 2020-10-16
WO2014043453A1 (en) 2014-03-20
KR20150055026A (ko) 2015-05-20
US9568526B2 (en) 2017-02-14
JP6219959B2 (ja) 2017-10-25
JP2015528616A (ja) 2015-09-28
TW201428589A (zh) 2014-07-16

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