CN104380312B - 使用电场装置的系统及方法 - Google Patents

使用电场装置的系统及方法 Download PDF

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Publication number
CN104380312B
CN104380312B CN201380007918.2A CN201380007918A CN104380312B CN 104380312 B CN104380312 B CN 104380312B CN 201380007918 A CN201380007918 A CN 201380007918A CN 104380312 B CN104380312 B CN 104380312B
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CN
China
Prior art keywords
electric field
transistor
electric
capacitance
biometric
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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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CN201380007918.2A
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English (en)
Chinese (zh)
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CN104380312A (zh
Inventor
约翰·K·史科尼德
杰克·C·奇辰司
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Qualcomm Inc
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Qualcomm Inc
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    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
    • G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
    • G06V40/12—Fingerprints or palmprints
    • G06V40/13—Sensors therefor
    • G06V40/1306—Sensors therefor non-optical, e.g. ultrasonic or capacitive sensing
    • 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
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G06F3/0443—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using a single layer of sensing electrodes
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
    • G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
    • G06V40/12—Fingerprints or palmprints
    • G06V40/1347—Preprocessing; Feature extraction
    • G06V40/1359—Extracting features related to ridge properties; Determining the fingerprint type, e.g. whorl or loop
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T5/00—Image enhancement or restoration
    • G06T5/70—Denoising; Smoothing

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  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Human Computer Interaction (AREA)
  • General Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Image Input (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
CN201380007918.2A 2012-02-06 2013-02-06 使用电场装置的系统及方法 Expired - Fee Related CN104380312B (zh)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US201261595322P 2012-02-06 2012-02-06
US61/595,322 2012-02-06
PCT/US2013/024973 WO2013119697A1 (en) 2012-02-06 2013-02-06 System and method of using an electric field device

Publications (2)

Publication Number Publication Date
CN104380312A CN104380312A (zh) 2015-02-25
CN104380312B true CN104380312B (zh) 2018-07-10

Family

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Family Applications (1)

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CN201380007918.2A Expired - Fee Related CN104380312B (zh) 2012-02-06 2013-02-06 使用电场装置的系统及方法

Country Status (8)

Country Link
US (2) US9619689B2 (enExample)
EP (1) EP2812851A4 (enExample)
JP (1) JP6133904B2 (enExample)
KR (1) KR20140119099A (enExample)
CN (1) CN104380312B (enExample)
IN (1) IN2014MN01393A (enExample)
TW (1) TW201351302A (enExample)
WO (1) WO2013119697A1 (enExample)

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CN104380312B (zh) 2012-02-06 2018-07-10 高通股份有限公司 使用电场装置的系统及方法
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US10203816B2 (en) 2013-05-07 2019-02-12 Egis Technology Inc. Apparatus and method for TFT fingerprint sensor
US9215392B2 (en) 2014-04-21 2015-12-15 Palo Alto Research Center Incorporated Impedance readout circuit and method having filter for determining an AC current component inversely proportional to the output impedance of a pixel
US10101373B2 (en) 2014-04-21 2018-10-16 Palo Alto Research Center Incorporated Capacitive imaging device with active pixels and method
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US9195879B1 (en) 2014-08-31 2015-11-24 Qualcomm Incorporated Air/object determination for biometric sensors
US9582705B2 (en) 2014-08-31 2017-02-28 Qualcomm Incorporated Layered filtering for biometric sensors
US9665763B2 (en) * 2014-08-31 2017-05-30 Qualcomm Incorporated Finger/non-finger determination for biometric sensors
TWI619044B (zh) * 2015-07-23 2018-03-21 瑞鼎科技股份有限公司 電容式指紋感測裝置及電容式指紋感測方法
US9922508B2 (en) * 2015-10-09 2018-03-20 Soberlink Healthcare, Llc Bioresistive-fingerprint based sobriety monitoring system
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Also Published As

Publication number Publication date
EP2812851A1 (en) 2014-12-17
WO2013119697A1 (en) 2013-08-15
US20130200907A1 (en) 2013-08-08
US20160283767A1 (en) 2016-09-29
US9740911B2 (en) 2017-08-22
KR20140119099A (ko) 2014-10-08
JP6133904B2 (ja) 2017-05-24
CN104380312A (zh) 2015-02-25
JP2015508922A (ja) 2015-03-23
US9619689B2 (en) 2017-04-11
TW201351302A (zh) 2013-12-16
EP2812851A4 (en) 2016-06-08
IN2014MN01393A (enExample) 2015-04-03

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