CN109791448A - 触摸检测方法和触控芯片 - Google Patents

触摸检测方法和触控芯片 Download PDF

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Publication number
CN109791448A
CN109791448A CN201780000761.9A CN201780000761A CN109791448A CN 109791448 A CN109791448 A CN 109791448A CN 201780000761 A CN201780000761 A CN 201780000761A CN 109791448 A CN109791448 A CN 109791448A
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value set
touch
frequency
benchmark
original
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CN109791448B (zh
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刘松松
姜海宽
彭永豪
杨威
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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)
  • User Interface Of Digital Computer (AREA)

Abstract

一种触摸检测方法和触控芯片。该触摸检测方法包括：确定触摸屏的驱动信号从当前频率跳频到目标频率(S510)；以参考频率的驱动信号驱动所述触摸屏，其中，参考频率与目标频率不相同(S520)；采集触摸屏工作在参考频率时的原始值集合作为第一原始值集合(S530)；根据第一原始值集合与参考频率的备份基准值集合，确定触摸屏上存在触摸的第一触摸位置(S540)；以目标频率的驱动信号驱动所述触摸屏(S550)；采集触摸屏工作在目标频率时的原始值集合作为第二原始值集合(S560)；根据第二原始值集合和第一触摸位置，确定目标频率的基准值集合(S570)；根据目标频率的基准值集合，确定触摸屏工作在目标频率时的触摸位置(S580)。该触摸检测方法和触控芯片，有助于提高触摸屏上触摸位置的检测准确率。

Description

PCT国内申请，说明书已公开。

Claims (12)

  1. PCT国内申请，权利要求书已公开。
CN201780000761.9A 2017-07-31 2017-07-31 触摸检测方法和触控芯片 Active CN109791448B (zh)

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PCT/CN2017/095262 WO2019023878A1 (zh) 2017-07-31 2017-07-31 触摸检测方法和触控芯片

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110362240A (zh) * 2019-07-22 2019-10-22 深圳市华科创智技术有限公司 一种具有通道切换功能的电容屏及终端设备

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112363639B (zh) * 2020-11-11 2023-04-18 青岛海信商用显示股份有限公司 一种智能设备及其控制方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101583923A (zh) * 2007-01-03 2009-11-18 苹果公司 多重触摸自动扫描
CN102830837A (zh) * 2012-07-19 2012-12-19 深圳市汇顶科技有限公司 一种用于触摸检测的噪声抑制方法、***及触摸终端
US20150103042A1 (en) * 2013-10-15 2015-04-16 Anapass Inc. Method of removing common noise and method of detecting touch information
CN104660024A (zh) * 2015-01-12 2015-05-27 友达光电股份有限公司 噪声抑制方法及电压转换器
CN105786241A (zh) * 2015-01-14 2016-07-20 三星电子株式会社 触摸控制器、 触摸感测装置及触摸感测方法

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6025697B2 (ja) * 2012-12-05 2016-11-16 株式会社ジャパンディスプレイ タッチ検出機能付き表示装置、その駆動方法及び電子機器
EP3159777B1 (en) * 2015-10-20 2024-05-29 LG Display Co., Ltd. Method and circuit for driving touch sensors and display device using the same

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101583923A (zh) * 2007-01-03 2009-11-18 苹果公司 多重触摸自动扫描
CN102830837A (zh) * 2012-07-19 2012-12-19 深圳市汇顶科技有限公司 一种用于触摸检测的噪声抑制方法、***及触摸终端
US20150103042A1 (en) * 2013-10-15 2015-04-16 Anapass Inc. Method of removing common noise and method of detecting touch information
CN104660024A (zh) * 2015-01-12 2015-05-27 友达光电股份有限公司 噪声抑制方法及电压转换器
CN105786241A (zh) * 2015-01-14 2016-07-20 三星电子株式会社 触摸控制器、 触摸感测装置及触摸感测方法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110362240A (zh) * 2019-07-22 2019-10-22 深圳市华科创智技术有限公司 一种具有通道切换功能的电容屏及终端设备

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WO2019023878A1 (zh) 2019-02-07
CN109791448B (zh) 2021-11-12

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