CN111527472A - 降噪方法、触控显示装置和计算机可读存储介质 - Google Patents

降噪方法、触控显示装置和计算机可读存储介质 Download PDF

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CN111527472A
CN111527472A CN201880002036.XA CN201880002036A CN111527472A CN 111527472 A CN111527472 A CN 111527472A CN 201880002036 A CN201880002036 A CN 201880002036A CN 111527472 A CN111527472 A CN 111527472A
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touch detection
noise data
data
noise
node
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CN111527472B (zh
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陈曦
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Shenzhen Goodix Technology Co Ltd
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Shenzhen Goodix Technology Co Ltd
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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
    • G06F3/0416—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
    • G06F3/04182—Filtering of noise external to the device and not generated by digitiser components
    • 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
    • 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
    • G06F3/0446—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

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Position Input By Displaying (AREA)

Abstract

一种降噪方法、触控显示装置和计算机可读存储介质。降噪方法，应用于触控显示装置，触控显示装置上设置有若干触摸检测节点，包括：获取各触摸检测节点的噪声数据(101)；根据噪声数据获取特征值(102)；对目标节点的噪声数据和特征值进行拟合处理，得到以特征值为自变量，以目标节点的噪声数据为因变量的拟合函数(103)；目标节点为待降噪的触摸检测节点；将特征值代入拟合函数，得到与特征值对应的拟合数据(104)；将拟合数据和目标节点的噪声数据的差值，作为降噪后的数据(105)。降低了硬件成本，无需受固定采样频率限制的影响，而且可对非直流分量的噪声干扰进行滤除。

Description

PCT国内申请，说明书已公开。

Claims (14)

  1. PCT国内申请，权利要求书已公开。
CN201880002036.XA 2018-10-31 2018-10-31 降噪方法、触控显示装置和计算机可读存储介质 Active CN111527472B (zh)

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PCT/CN2018/112952 WO2020087335A1 (zh) 2018-10-31 2018-10-31 降噪方法、触控显示装置和计算机可读存储介质

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CN102053744A (zh) * 2009-11-03 2011-05-11 无锡华润矽科微电子有限公司 触摸屏控制装置、触摸屏控制电路及触摸屏控制方法
CN102707821A (zh) * 2011-03-28 2012-10-03 深圳市汇顶科技有限公司 触摸检测装置的降噪处理方法及系统
CN102722285A (zh) * 2012-06-08 2012-10-10 深圳市汇顶科技有限公司 触摸检测装置检测数据中的形变噪声的消除方法及系统
US20130033451A1 (en) * 2011-08-05 2013-02-07 Dana Olson Variable profile common mode filter
KR101526168B1 (ko) * 2014-10-23 2015-06-08 (주)이미지스테크놀로지 정전용량 터치 센서에서 효과적인 노이즈 제거 방법 및 이를 이용한 터치스크린 장치
CN108089747A (zh) * 2017-12-13 2018-05-29 四川大学 一种笔压信息获得方法、装置、电子设备及存储介质

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* Cited by examiner, † Cited by third party
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US20110242045A1 (en) * 2010-04-06 2011-10-06 Tae Kwang Park Noise blocking in a capacitive touch device
CN102999236B (zh) * 2011-09-09 2017-04-05 三星电子株式会社 触摸屏传感器集成电路、其操作方法以及系统
US20130265242A1 (en) * 2012-04-09 2013-10-10 Peter W. Richards Touch sensor common mode noise recovery
US9223439B2 (en) * 2012-09-11 2015-12-29 Sharp Kabushiki Kaisha Signal processing system, touch panel controller, touch panel system using same, and electronic device
CN103941927A (zh) * 2013-01-22 2014-07-23 华为终端有限公司 触摸信号检测电路及方法和触摸设备
CN103955898B (zh) * 2014-04-28 2017-04-19 南京梅花软件系统股份有限公司 一种触摸屏检测芯片信号滤波方法
WO2018176197A1 (zh) * 2017-03-27 2018-10-04 深圳市汇顶科技股份有限公司 一种消除触控屏lcd干扰的方法及装置

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102053744A (zh) * 2009-11-03 2011-05-11 无锡华润矽科微电子有限公司 触摸屏控制装置、触摸屏控制电路及触摸屏控制方法
CN102707821A (zh) * 2011-03-28 2012-10-03 深圳市汇顶科技有限公司 触摸检测装置的降噪处理方法及系统
US20130033451A1 (en) * 2011-08-05 2013-02-07 Dana Olson Variable profile common mode filter
CN102722285A (zh) * 2012-06-08 2012-10-10 深圳市汇顶科技有限公司 触摸检测装置检测数据中的形变噪声的消除方法及系统
KR101526168B1 (ko) * 2014-10-23 2015-06-08 (주)이미지스테크놀로지 정전용량 터치 센서에서 효과적인 노이즈 제거 방법 및 이를 이용한 터치스크린 장치
CN108089747A (zh) * 2017-12-13 2018-05-29 四川大学 一种笔压信息获得方法、装置、电子设备及存储介质

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US10963099B2 (en) 2021-03-30
WO2020087335A1 (zh) 2020-05-07
US20200133429A1 (en) 2020-04-30
CN111527472B (zh) 2023-11-07
EP3667477A1 (en) 2020-06-17
EP3667477A4 (en) 2020-08-26

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