CN113311965A - 用于触摸感应的设备和方法 - Google Patents
用于触摸感应的设备和方法 Download PDFInfo
- Publication number
- CN113311965A CN113311965A CN202110185003.7A CN202110185003A CN113311965A CN 113311965 A CN113311965 A CN 113311965A CN 202110185003 A CN202110185003 A CN 202110185003A CN 113311965 A CN113311965 A CN 113311965A
- Authority
- CN
- China
- Prior art keywords
- voltage
- threshold
- duration
- contact
- capacitor
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 27
- 239000003990 capacitor Substances 0.000 claims description 74
- 238000007599 discharging Methods 0.000 claims description 5
- 238000001514 detection method Methods 0.000 description 12
- 230000008901 benefit Effects 0.000 description 6
- 239000003607 modifier Substances 0.000 description 3
- 230000004913 activation Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000000615 nonconductor Substances 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
Images
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
- G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
- G01D5/14—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
- G01D5/24—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying capacitance
-
- 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
- G06F3/0441—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using active external devices, e.g. active pens, for receiving changes in electrical potential transmitted by the digitiser, e.g. tablet driving signals
-
- 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
-
- 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
- H03K17/96—Touch switches
- H03K17/962—Capacitive touch switches
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K2217/00—Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00
- H03K2217/94—Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00 characterised by the way in which the control signal is generated
- H03K2217/96—Touch switches
- H03K2217/9607—Capacitive touch switches
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K2217/00—Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00
- H03K2217/94—Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00 characterised by the way in which the control signal is generated
- H03K2217/96—Touch switches
- H03K2217/9607—Capacitive touch switches
- H03K2217/96071—Capacitive touch switches characterised by the detection principle
- H03K2217/960715—Rc-timing; e.g. measurement of variation of charge time or discharge time of the sensor
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K2217/00—Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00
- H03K2217/94—Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00 characterised by the way in which the control signal is generated
- H03K2217/96—Touch switches
- H03K2217/9607—Capacitive touch switches
- H03K2217/96071—Capacitive touch switches characterised by the detection principle
- H03K2217/960725—Charge-transfer
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K2217/00—Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00
- H03K2217/94—Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00 characterised by the way in which the control signal is generated
- H03K2217/96—Touch switches
- H03K2217/9607—Capacitive touch switches
- H03K2217/960735—Capacitive touch switches characterised by circuit details
- H03K2217/96074—Switched capacitor
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K2217/00—Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00
- H03K2217/94—Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00 characterised by the way in which the control signal is generated
- H03K2217/96—Touch switches
- H03K2217/9607—Capacitive touch switches
- H03K2217/960735—Capacitive touch switches characterised by circuit details
- H03K2217/960745—Capacitive differential; e.g. comparison with reference capacitance
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Human Computer Interaction (AREA)
- Electronic Switches (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
Description
Claims (20)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR2001298 | 2020-02-10 | ||
FR2001298A FR3107129B1 (fr) | 2020-02-10 | 2020-02-10 | Dispositif et méthode de détection d’un contact tactile |
Publications (2)
Publication Number | Publication Date |
---|---|
CN113311965A true CN113311965A (zh) | 2021-08-27 |
CN113311965B CN113311965B (zh) | 2024-03-05 |
Family
ID=70978083
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202110185003.7A Active CN113311965B (zh) | 2020-02-10 | 2021-02-10 | 用于触摸感应的设备和方法 |
Country Status (3)
Country | Link |
---|---|
US (2) | US11604082B2 (zh) |
CN (1) | CN113311965B (zh) |
FR (1) | FR3107129B1 (zh) |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102033166A (zh) * | 2009-09-25 | 2011-04-27 | 爱特梅尔公司 | 使用单个引脚测量自身电容的方法和设备 |
US20110267287A1 (en) * | 2010-04-30 | 2011-11-03 | Microchip Technology Incorporated | Touch sense using time domain reflectometry |
US8159462B1 (en) * | 2006-11-15 | 2012-04-17 | Cypress Semiconductor Corporation | Reference voltage offset for capacitive touch-sensor measurement |
US20140354582A1 (en) * | 2013-05-30 | 2014-12-04 | Silicon Laboratories Inc. | Touch Sensor For Mobile Device With Radio |
US20160262232A1 (en) * | 2015-03-02 | 2016-09-08 | Panasonic Intellectual Property Management Co., Ltd. | Lighting device, head light and vehicle |
US20180157355A1 (en) * | 2016-12-05 | 2018-06-07 | Samsung Display Co., Ltd. | Touch sensor and display device including touch sensor |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5189417A (en) * | 1990-10-16 | 1993-02-23 | Donnelly Corporation | Detection circuit for matrix touch pad |
DE10303480A1 (de) * | 2003-01-24 | 2004-08-05 | E.G.O. Elektro-Gerätebau GmbH | Schaltungsanordnung für einen kapazitiven Näherungsschalter |
KR20100100773A (ko) * | 2007-10-04 | 2010-09-15 | 가부시키가이샤후지쿠라 | 정전용량형 근접센서 및 근접검지방법 |
US8154310B1 (en) * | 2008-02-27 | 2012-04-10 | Cypress Semiconductor Corporation | Capacitance sensor with sensor capacitance compensation |
KR101216393B1 (ko) * | 2010-05-13 | 2012-12-28 | 주식회사 실리콘웍스 | 터치스크린의 정전용량 측정회로 및 방법 |
US10031620B2 (en) * | 2016-06-30 | 2018-07-24 | Stmicroelectronics Asia Pacific Pte Ltd | Self-sensing touch panel |
US11221708B2 (en) * | 2018-12-26 | 2022-01-11 | Microchip Technology Incorporated | Digital-to-analog controller-referenced touch sensing system, and related systems, methods, and devices |
-
2020
- 2020-02-10 FR FR2001298A patent/FR3107129B1/fr active Active
-
2021
- 2021-02-09 US US17/171,726 patent/US11604082B2/en active Active
- 2021-02-10 CN CN202110185003.7A patent/CN113311965B/zh active Active
-
2023
- 2023-01-17 US US18/155,531 patent/US20230152126A1/en active Pending
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8159462B1 (en) * | 2006-11-15 | 2012-04-17 | Cypress Semiconductor Corporation | Reference voltage offset for capacitive touch-sensor measurement |
CN102033166A (zh) * | 2009-09-25 | 2011-04-27 | 爱特梅尔公司 | 使用单个引脚测量自身电容的方法和设备 |
US20110267287A1 (en) * | 2010-04-30 | 2011-11-03 | Microchip Technology Incorporated | Touch sense using time domain reflectometry |
US20140354582A1 (en) * | 2013-05-30 | 2014-12-04 | Silicon Laboratories Inc. | Touch Sensor For Mobile Device With Radio |
US20160262232A1 (en) * | 2015-03-02 | 2016-09-08 | Panasonic Intellectual Property Management Co., Ltd. | Lighting device, head light and vehicle |
US20180157355A1 (en) * | 2016-12-05 | 2018-06-07 | Samsung Display Co., Ltd. | Touch sensor and display device including touch sensor |
Also Published As
Publication number | Publication date |
---|---|
US20230152126A1 (en) | 2023-05-18 |
US20210247212A1 (en) | 2021-08-12 |
FR3107129A1 (fr) | 2021-08-13 |
US11604082B2 (en) | 2023-03-14 |
CN113311965B (zh) | 2024-03-05 |
FR3107129B1 (fr) | 2022-02-18 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US8125232B2 (en) | Capacitive sensing device and method | |
JP4727754B1 (ja) | 静電容量式タッチパネル | |
JP5669850B2 (ja) | 静電容量式タッチセンサデバイス設定システムおよび方法 | |
US7205776B2 (en) | Capacitance measuring apparatus and method, and program | |
US7541816B1 (en) | Capacitive sensor | |
US20090225044A1 (en) | Determining touch on keys of touch sensitive input device | |
JP2009216506A (ja) | 容量センサー | |
US7880479B2 (en) | Capacitive sensor with alternating current power immunity | |
KR20160067094A (ko) | 다중 채널 용량성 전압 디바이더 스캐닝 방법 및 장치 | |
CN110084082B (zh) | 一种电子设备、指纹识别装置及其手指触摸检测电路 | |
CN113311965B (zh) | 用于触摸感应的设备和方法 | |
EP3236341B1 (en) | Touch screen driving method, touch screen, and display device | |
US11281314B2 (en) | Methods and apparatus for variable capacitance detection | |
EP3490148B1 (en) | Capacitance detecting device | |
CN113949373A (zh) | 使用不同电流进行充放电的接触检测电路及其运行方法 | |
EP2722985B1 (en) | Method of differential measurement of voltage levels of capacitive change. | |
JP2015219703A (ja) | 静電検出装置 | |
CN110825275A (zh) | 触碰感测装置及触碰感测方法 | |
JP4920728B2 (ja) | 容量判別装置及び静電容量式タッチパネル | |
CN115842542A (zh) | 一种低功耗触摸检测电路 | |
CN115113284A (zh) | 异物侦测方法及具有异物侦测功能的电源端 | |
TWI507951B (zh) | 靜電電容式觸控面板 | |
CN116743148A (zh) | 触摸按键检测电路 | |
CN114465613A (zh) | 一种高速低功耗电容触摸检测电路、方法及芯片 | |
KR20200017586A (ko) | 고정밀도의 저전력 센서인터페이스장치 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
GR01 | Patent grant | ||
GR01 | Patent grant | ||
CP03 | Change of name, title or address |
Address after: Montrouge, France Patentee after: STMicroelectronics France Country or region after: France Patentee after: STMicroelectronics (Grenoble 2) S.A.S. Patentee after: STMICROELECTRONICS (ROUSSET) S.A.S. Address before: France Patentee before: STMicroelectronics S.A. Country or region before: France Patentee before: STMicroelectronics (Grenoble 2) S.A.S. Patentee before: STMICROELECTRONICS (ROUSSET) S.A.S. |