CN110214302A - 噪声消除电路及触控装置 - Google Patents

噪声消除电路及触控装置 Download PDF

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Publication number
CN110214302A
CN110214302A CN201780002320.2A CN201780002320A CN110214302A CN 110214302 A CN110214302 A CN 110214302A CN 201780002320 A CN201780002320 A CN 201780002320A CN 110214302 A CN110214302 A CN 110214302A
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signal
threshold value
noise
ratio
time interval
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CN201780002320.2A
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CN110214302B (zh
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梁颖思
文亚南
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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

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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

一种应用于触控装置(10)的噪声消除电路(11)，包括阈值单元(12)以及比较单元(14)，阈值单元(12)用来计算阈值(Th)，比较单元(14)用来比较接收信号(RX)与阈值(Th)；其中，当接收信号(RX)于时间区间中具有大于阈值的振幅(Th)时，比较单元(14)将接收信号(RX)于一区段的部份接收信号丢弃而不输出至信号处理单元(15)；其中，所述区段包括所述时间区间中且于一时间瞬间以前的时间区段，所述时间瞬间对应所述接收信号大于所述阈值的时间。

Description

PCT国内申请，说明书已公开。

Claims (18)

  1. PCT国内申请，权利要求书已公开。
CN201780002320.2A 2017-12-28 2017-12-28 噪声消除电路及触控装置 Active CN110214302B (zh)

Applications Claiming Priority (1)

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PCT/CN2017/119394 WO2019127213A1 (zh) 2017-12-28 2017-12-28 噪声消除电路及触控装置

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CN110214302A true CN110214302A (zh) 2019-09-06
CN110214302B CN110214302B (zh) 2022-09-16

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WO (1) WO2019127213A1 (zh)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150062042A1 (en) * 2013-09-03 2015-03-05 Lg Display Co., Ltd. Electronic device with touch sensor and driving method thereof
CN105045426A (zh) * 2015-08-13 2015-11-11 北京集创北方科技有限公司 一种触摸屏抗噪声方法及装置
CN105677099A (zh) * 2016-01-05 2016-06-15 京东方科技集团股份有限公司 用于设定触摸检测系统的工作频段的方法和系统

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8334849B2 (en) * 2009-08-25 2012-12-18 Pixart Imaging Inc. Firmware methods and devices for a mutual capacitance touch sensing device
CN103309529B (zh) * 2012-03-16 2016-10-05 联想(北京)有限公司 一种电容触摸屏及其识别触摸信号的方法
CN106407956B (zh) * 2016-10-31 2019-04-05 北京交通大学 一种电容触控轨迹噪声信号的平滑滤波方法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150062042A1 (en) * 2013-09-03 2015-03-05 Lg Display Co., Ltd. Electronic device with touch sensor and driving method thereof
CN105045426A (zh) * 2015-08-13 2015-11-11 北京集创北方科技有限公司 一种触摸屏抗噪声方法及装置
CN105677099A (zh) * 2016-01-05 2016-06-15 京东方科技集团股份有限公司 用于设定触摸检测系统的工作频段的方法和系统

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CN110214302B (zh) 2022-09-16
WO2019127213A1 (zh) 2019-07-04

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