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WO2017050045A1 - Capacitive sensor, capacitive sensing device, and electronic device - Google Patents

Capacitive sensor, capacitive sensing device, and electronic device Download PDF

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Publication number
WO2017050045A1
WO2017050045A1 PCT/CN2016/094472 CN2016094472W WO2017050045A1 WO 2017050045 A1 WO2017050045 A1 WO 2017050045A1 CN 2016094472 W CN2016094472 W CN 2016094472W WO 2017050045 A1 WO2017050045 A1 WO 2017050045A1
Authority
WO
WIPO (PCT)
Prior art keywords
sensor
capacitive
current signal
sensing device
electronic device
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.)
Ceased
Application number
PCT/CN2016/094472
Other languages
French (fr)
Chinese (zh)
Inventor
刘雪春
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenzhen Sunwave Technology Co Ltd
Original Assignee
Shenzhen Sunwave Technology Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Shenzhen Sunwave Technology Co Ltd filed Critical Shenzhen Sunwave Technology Co Ltd
Publication of WO2017050045A1 publication Critical patent/WO2017050045A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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

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)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
  • Electronic Switches (AREA)

Abstract

A capacitive sensor (13, 23, and 31), a capacitive sensing device (1, 2, and 30), and an electronic device (200). The capacitive sensor (13, 23, and 31) comprises multiple sensor units (131, 231, and 331). Each sensor unit (131, 231, and 331) comprises a sensor electrode (14, 24, and 34) and a sensor circuit (15, 25, and 35). The sensor electrodes (14, 24, and 34) are capable of coupling to a target object in a capacitive manner. The sensor electrodes (14, 24, and 34) are used for loading a reference signal. The sensor circuits (15, 25, and 35) comprise converter circuits (151, 251, and 351). The converter circuits (151, 251, and 351) are used for converting a change in the reference signal on the sensor electrodes (14, 24, and 34) due to being approached or touched by the target object into a first alternating current signal and, by stacking the first alternating current signal onto a second constant direct current signal, correspondingly generating a second alternating current signal. A sensing signal outputted by the capacitive sensor (131, 231, and 331) is of increased stability. The sensing device (1, 2, and 30) provided with the capacitive sensor (13, 23, and 31) is accurate in terms of sensing accuracy. The electronic device (200) provided with the capacitive sensing device (1, 2, and 30) improves user experience.
PCT/CN2016/094472 2015-09-23 2016-08-10 Capacitive sensor, capacitive sensing device, and electronic device Ceased WO2017050045A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201510613396.1A CN105138181A (en) 2015-09-23 2015-09-23 Capacitive sensor, capacitive sensing device and electronic device
CN201510613396.1 2015-09-23

Publications (1)

Publication Number Publication Date
WO2017050045A1 true WO2017050045A1 (en) 2017-03-30

Family

ID=54723549

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2016/094472 Ceased WO2017050045A1 (en) 2015-09-23 2016-08-10 Capacitive sensor, capacitive sensing device, and electronic device

Country Status (2)

Country Link
CN (1) CN105138181A (en)
WO (1) WO2017050045A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11543436B2 (en) 2018-03-30 2023-01-03 G & W Electric Company Constructive system regarding a capacitive sensor
US11644484B2 (en) 2018-12-17 2023-05-09 G & W Electric Company Electrical sensor assembly
US11740261B2 (en) 2016-10-14 2023-08-29 G & W Electric Company Capacitive voltage sensor assembly
US11774481B2 (en) 2018-12-17 2023-10-03 G & W Electric Company Electrical sensor assembly

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105138181A (en) * 2015-09-23 2015-12-09 深圳信炜科技有限公司 Capacitive sensor, capacitive sensing device and electronic device
WO2018027595A1 (en) * 2016-08-09 2018-02-15 深圳信炜科技有限公司 Capacitive sensor, capacitive sensing device, and electronic apparatus
CN109596958B (en) * 2017-09-29 2021-06-25 敦泰电子有限公司 Sensor unit, fingerprint sensing chip and electronic equipment
CN108803166B (en) * 2018-07-06 2021-05-25 京东方科技集团股份有限公司 Substrate assembly, display panel and display device
CN117590968B (en) * 2024-01-18 2024-06-18 上海海栎创科技股份有限公司 Differential touch sensing unit and system

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101632060A (en) * 2007-01-03 2010-01-20 苹果公司 Simultaneous sensing arrangement
CN102693053A (en) * 2011-01-17 2012-09-26 安华高科技Ecbuip(新加坡)私人有限公司 Differential capacitive touchscreen or touch panel
US20140013865A1 (en) * 2012-07-13 2014-01-16 Nokia Corporation Apparatus for Sensing
US20140293155A1 (en) * 2013-04-02 2014-10-02 Samsung Display Co., Ltd. Energy recovery system for recovering pressure energy of touch input to touch screen panel
US20150015537A1 (en) * 2013-07-09 2015-01-15 Fingerprint Cards Ab Fingerprint sensing system and method
CN104662430A (en) * 2012-05-22 2015-05-27 硅显示技术有限公司 Capacitive fingerprint sensor
CN105138181A (en) * 2015-09-23 2015-12-09 深圳信炜科技有限公司 Capacitive sensor, capacitive sensing device and electronic device
CN205028256U (en) * 2015-09-23 2016-02-10 深圳信炜科技有限公司 Capacitive sensor , capacitive sensor and electronic equipment

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101632060A (en) * 2007-01-03 2010-01-20 苹果公司 Simultaneous sensing arrangement
CN102693053A (en) * 2011-01-17 2012-09-26 安华高科技Ecbuip(新加坡)私人有限公司 Differential capacitive touchscreen or touch panel
CN104662430A (en) * 2012-05-22 2015-05-27 硅显示技术有限公司 Capacitive fingerprint sensor
US20140013865A1 (en) * 2012-07-13 2014-01-16 Nokia Corporation Apparatus for Sensing
US20140293155A1 (en) * 2013-04-02 2014-10-02 Samsung Display Co., Ltd. Energy recovery system for recovering pressure energy of touch input to touch screen panel
US20150015537A1 (en) * 2013-07-09 2015-01-15 Fingerprint Cards Ab Fingerprint sensing system and method
CN105138181A (en) * 2015-09-23 2015-12-09 深圳信炜科技有限公司 Capacitive sensor, capacitive sensing device and electronic device
CN205028256U (en) * 2015-09-23 2016-02-10 深圳信炜科技有限公司 Capacitive sensor , capacitive sensor and electronic equipment

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11740261B2 (en) 2016-10-14 2023-08-29 G & W Electric Company Capacitive voltage sensor assembly
US11543436B2 (en) 2018-03-30 2023-01-03 G & W Electric Company Constructive system regarding a capacitive sensor
US11815529B2 (en) 2018-03-30 2023-11-14 G & W Electric Company Constructive system regarding a capacitive sensor
US12111337B2 (en) 2018-03-30 2024-10-08 G & W Electric Company Constructive system regarding a capacitive sensor
US11644484B2 (en) 2018-12-17 2023-05-09 G & W Electric Company Electrical sensor assembly
US11774481B2 (en) 2018-12-17 2023-10-03 G & W Electric Company Electrical sensor assembly
US12196785B2 (en) 2018-12-17 2025-01-14 G & W Electric Company Electrical sensor assembly

Also Published As

Publication number Publication date
CN105138181A (en) 2015-12-09

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