CN102707828B - 抵消触摸面板传感器的触摸面板偏移 - Google Patents
抵消触摸面板传感器的触摸面板偏移 Download PDFInfo
- Publication number
- CN102707828B CN102707828B CN201210052738.3A CN201210052738A CN102707828B CN 102707828 B CN102707828 B CN 102707828B CN 201210052738 A CN201210052738 A CN 201210052738A CN 102707828 B CN102707828 B CN 102707828B
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- Prior art keywords
- sensor
- offset cancellation
- touch panel
- module
- offset
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
-
- 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
- G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive 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
- G06F3/0416—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
- G06F3/04184—Synchronisation with the driving of the display or the backlighting unit to avoid interferences generated internally
Landscapes
- 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)
- Electronic Switches (AREA)
Abstract
Description
Claims (20)
Applications Claiming Priority (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201161446944P | 2011-02-25 | 2011-02-25 | |
US61/446,944 | 2011-02-25 | ||
US201161495149P | 2011-06-09 | 2011-06-09 | |
US61/495,149 | 2011-06-09 | ||
US13/402,485 US20120218222A1 (en) | 2011-02-25 | 2012-02-22 | Cancelling touch panel offset of a touch panel sensor |
US13/402,485 | 2012-02-22 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN102707828A CN102707828A (zh) | 2012-10-03 |
CN102707828B true CN102707828B (zh) | 2016-12-07 |
Family
ID=46718662
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201210052738.3A Expired - Fee Related CN102707828B (zh) | 2011-02-25 | 2012-02-24 | 抵消触摸面板传感器的触摸面板偏移 |
Country Status (2)
Country | Link |
---|---|
US (1) | US20120218222A1 (zh) |
CN (1) | CN102707828B (zh) |
Families Citing this family (34)
Publication number | Priority date | Publication date | Assignee | Title |
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US8860432B2 (en) | 2011-02-25 | 2014-10-14 | Maxim Integrated Products, Inc. | Background noise measurement and frequency selection in touch panel sensor systems |
US9086439B2 (en) | 2011-02-25 | 2015-07-21 | Maxim Integrated Products, Inc. | Circuits, devices and methods having pipelined capacitance sensing |
CN106249954A (zh) | 2011-02-25 | 2016-12-21 | 高通股份有限公司 | 电容式触摸感测构架 |
KR101444524B1 (ko) * | 2012-07-09 | 2014-09-24 | 삼성전기주식회사 | 정전용량 감지 장치, 정전용량 감지 방법 및 터치스크린 장치 |
US9128573B2 (en) * | 2012-09-14 | 2015-09-08 | STMicroelectronics S.r.l.; | High signal to noise ratio capacitive sensing analog front-end |
US9389256B2 (en) | 2012-09-14 | 2016-07-12 | Stmicroelectronics Asia Pacific Pte Ltd | High signal to noise ratio capacitive sensing analog front-end |
US9377907B2 (en) * | 2012-09-21 | 2016-06-28 | Apple Inc. | Self capacitance implementation method |
KR102023938B1 (ko) * | 2012-12-26 | 2019-09-23 | 엘지디스플레이 주식회사 | 터치 센싱 장치 및 방법 |
CN103064571B (zh) * | 2012-12-31 | 2016-01-27 | 深圳市汇顶科技股份有限公司 | 电容屏触摸检测系统 |
CN103970380B (zh) * | 2013-02-01 | 2017-05-10 | 晨星半导体股份有限公司 | 电容式触控系统及其驱动装置 |
TWI499959B (zh) * | 2013-02-07 | 2015-09-11 | Au Optronics Corp | 觸控晶片及採用此觸控晶片之觸控裝置 |
US9665215B2 (en) * | 2013-03-29 | 2017-05-30 | Stmicroelectronics Asia Pacific Pte Ltd | Method and circuit for parasitic capacitance cancellation for self capacitance sensing |
US10061444B2 (en) * | 2013-07-31 | 2018-08-28 | Apple Inc. | Self capacitance touch sensing |
CN104020914A (zh) * | 2014-06-06 | 2014-09-03 | 深圳市汇顶科技股份有限公司 | 自电容触摸检测电路 |
FR3024785B1 (fr) * | 2014-08-07 | 2016-09-02 | Fogale Nanotech | Procede de filtrage adaptatif pour interface gestuelle et tactile, et dispositif d'interface mettant en œuvre le procede |
KR102251059B1 (ko) * | 2014-10-06 | 2021-05-13 | 삼성전자주식회사 | 다단계 오프셋 커패시턴스 조정이 가능한 터치 디스플레이 장치 |
US10162453B2 (en) | 2014-10-15 | 2018-12-25 | Synaptics Incorporated | Sensor side charge cancellation |
US9772726B2 (en) * | 2014-11-03 | 2017-09-26 | Stmicroelectronics Asia Pacific Pte Ltd | Capacitive discharge circuit for touch sensitive screen |
CN107111412B (zh) * | 2015-01-16 | 2020-04-21 | 上海思立微电子科技有限公司 | 用于电容式感测的系统和方法 |
US10082916B2 (en) | 2015-07-08 | 2018-09-25 | Samsung Electronics Co., Ltd. | Circuit for cancelling offset capacitance of capacitive touch screen panel and device including the same |
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 |
US10795504B2 (en) | 2015-11-18 | 2020-10-06 | Stmicroelectroics Asia Pacific Pte Ltd | Frequency hopping for a capacitive touch screen controller |
TWI584172B (zh) * | 2016-03-02 | 2017-05-21 | 聯陽半導體股份有限公司 | 觸控偵測方法 |
JP6584698B2 (ja) | 2016-05-12 | 2019-10-02 | シグニファイ ホールディング ビー ヴィ | 管状照明取り付け具に取り付けるための管状デバイス |
KR102623873B1 (ko) | 2016-11-02 | 2024-01-12 | 삼성전자주식회사 | 터치 패널 컨트롤러 |
CN106909245A (zh) * | 2017-01-09 | 2017-06-30 | 昆山龙腾光电有限公司 | 触控芯片及其驱动方法 |
EP3502855B1 (en) * | 2017-11-08 | 2020-07-29 | Shenzhen Goodix Technology Co., Ltd. | Capacitance detection device, touch device and terminal device |
JP6908544B2 (ja) * | 2018-02-27 | 2021-07-28 | 株式会社東海理化電機製作所 | タッチセンサ装置及び静電容量較正プログラム |
US10581431B2 (en) | 2018-04-06 | 2020-03-03 | Qualcomm Incorporated | Self capacitance drive offset cancellation in touch controller integrated circuits |
KR102375320B1 (ko) * | 2020-04-24 | 2022-03-16 | 관악아날로그 주식회사 | 용량성 센서를 위한 읽기 회로 |
WO2022087974A1 (zh) * | 2020-10-29 | 2022-05-05 | 深圳市汇顶科技股份有限公司 | 电容检测电路、触控芯片和电容检测电路的参数调整方法 |
KR20220163758A (ko) | 2021-06-03 | 2022-12-12 | 서울대학교산학협력단 | 용량성 센서를 위한 읽기 회로 |
TWI790857B (zh) | 2021-12-15 | 2023-01-21 | 財團法人工業技術研究院 | 差動式電容裝置與差動式電容校準方法 |
CN114283756B (zh) * | 2021-12-28 | 2023-05-05 | 京东方科技集团股份有限公司 | 电平转换电路、电平转换芯片、显示装置及驱动方法 |
Citations (3)
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US5982221A (en) * | 1997-08-13 | 1999-11-09 | Analog Devices, Inc. | Switched current temperature sensor circuit with compounded ΔVBE |
CN101080689A (zh) * | 2004-12-14 | 2007-11-28 | 辛纳普蒂克斯公司 | 利用感测频率的较小偏移检测位置传感器中的噪声的方法和系统 |
CN101467119A (zh) * | 2006-06-09 | 2009-06-24 | 苹果公司 | 触摸屏液晶显示器 |
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US4584568A (en) * | 1984-06-25 | 1986-04-22 | Xerox Corporation | Two-step switched-capacitor digital to analog converter |
US6031217A (en) * | 1997-01-06 | 2000-02-29 | Texas Instruments Incorporated | Apparatus and method for active integrator optical sensors |
US6621487B2 (en) * | 2000-07-25 | 2003-09-16 | Rohm Co., Ltd. | Circuit for generating touch detection signals, locator device and a method of generating touch detection signals |
DE60215298T2 (de) * | 2002-03-20 | 2007-02-08 | Freescale Semiconductor, Inc., Austin | Analog-Digital Sigma-Delta Modulator mit FIR-Filter |
WO2007135663A1 (en) * | 2006-05-19 | 2007-11-29 | N-Trig Ltd. | Variable capacitor array |
US8049732B2 (en) * | 2007-01-03 | 2011-11-01 | Apple Inc. | Front-end signal compensation |
US20100110040A1 (en) * | 2008-10-30 | 2010-05-06 | Samsung Electronics Co., Ltd. | Touch controller having increased sensing sensitivity, and display driving circuit and display device and system having the touch controller |
JP5411670B2 (ja) * | 2009-11-25 | 2014-02-12 | セミコンダクター・コンポーネンツ・インダストリーズ・リミテッド・ライアビリティ・カンパニー | 静電容量型タッチパネルの信号処理回路 |
KR20110091380A (ko) * | 2010-02-05 | 2011-08-11 | 삼성전자주식회사 | 터치 패널의 노이즈 보상 방법 및 장치 |
TWI420826B (zh) * | 2010-04-09 | 2013-12-21 | Memsor Corp | 具有校正機制之電容式感測器及電容偵測方法 |
US8599167B2 (en) * | 2010-04-22 | 2013-12-03 | Maxim Integrated Products, Inc. | Method and apparatus for improving dynamic range of a touchscreen controller |
KR101697342B1 (ko) * | 2010-05-04 | 2017-01-17 | 삼성전자 주식회사 | 터치 감지 시스템의 캘리브레이션 방법 및 장치와 이를 적용한 터치 감지 시스템 |
US9857921B2 (en) * | 2011-05-13 | 2018-01-02 | Synaptics Incorporated | Input signal correction architecture |
-
2012
- 2012-02-22 US US13/402,485 patent/US20120218222A1/en not_active Abandoned
- 2012-02-24 CN CN201210052738.3A patent/CN102707828B/zh not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5982221A (en) * | 1997-08-13 | 1999-11-09 | Analog Devices, Inc. | Switched current temperature sensor circuit with compounded ΔVBE |
CN101080689A (zh) * | 2004-12-14 | 2007-11-28 | 辛纳普蒂克斯公司 | 利用感测频率的较小偏移检测位置传感器中的噪声的方法和系统 |
CN101467119A (zh) * | 2006-06-09 | 2009-06-24 | 苹果公司 | 触摸屏液晶显示器 |
Also Published As
Publication number | Publication date |
---|---|
US20120218222A1 (en) | 2012-08-30 |
CN102707828A (zh) | 2012-10-03 |
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Address after: American California Applicant after: Maxim Integrated Products Inc. Address before: American California Applicant before: Maxim Integrated Products |
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