ATE442083T1 - Lebendfingernachweis durch vier-punkte-messung der komplexen impedanz - Google Patents

Lebendfingernachweis durch vier-punkte-messung der komplexen impedanz

Info

Publication number
ATE442083T1
ATE442083T1 AT03812396T AT03812396T ATE442083T1 AT E442083 T1 ATE442083 T1 AT E442083T1 AT 03812396 T AT03812396 T AT 03812396T AT 03812396 T AT03812396 T AT 03812396T AT E442083 T1 ATE442083 T1 AT E442083T1
Authority
AT
Austria
Prior art keywords
pickup
electrodes
impedance measurement
complex impedance
current supply
Prior art date
Application number
AT03812396T
Other languages
English (en)
Inventor
Orjan Martinsen
Jon Nysaether
Knut Riisnaes
Geir Mostad
Rune Pedersen
Nicolai Christie
Sigmund Clausen
Original Assignee
Idex Asa
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 Idex Asa filed Critical Idex Asa
Application granted granted Critical
Publication of ATE442083T1 publication Critical patent/ATE442083T1/de

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/05—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves
    • A61B5/053—Measuring electrical impedance or conductance of a portion of the body
    • A61B5/0531—Measuring skin impedance
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/117—Identification of persons
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
    • A61B5/6801—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be attached to or worn on the body surface
    • A61B5/6813—Specially adapted to be attached to a specific body part
    • A61B5/6825—Hand
    • A61B5/6826—Finger
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/44—Detecting, measuring or recording for evaluating the integumentary system, e.g. skin, hair or nails
    • A61B5/441—Skin evaluation, e.g. for skin disorder diagnosis
    • A61B5/442—Evaluating skin mechanical properties, e.g. elasticity, hardness, texture, wrinkle assessment
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
    • A61B5/6801—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be attached to or worn on the body surface
    • A61B5/683—Means for maintaining contact with the body
    • A61B5/6838—Clamps or clips
    • 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
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
    • G06V40/40—Spoof detection, e.g. liveness detection

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Biophysics (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Veterinary Medicine (AREA)
  • Pathology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Multimedia (AREA)
  • Dermatology (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • General Physics & Mathematics (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Radiology & Medical Imaging (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
  • Image Input (AREA)
  • Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
  • Measurement Of Resistance Or Impedance (AREA)
  • Collating Specific Patterns (AREA)
  • Professional, Industrial, Or Sporting Protective Garments (AREA)
  • Gloves (AREA)
  • Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
AT03812396T 2002-12-03 2003-12-03 Lebendfingernachweis durch vier-punkte-messung der komplexen impedanz ATE442083T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NO20025803A NO20025803D0 (no) 2002-12-03 2002-12-03 Levende finger
PCT/NO2003/000405 WO2004049942A1 (en) 2002-12-03 2003-12-03 Live finger detection by four-point measurement of complex impedance

Publications (1)

Publication Number Publication Date
ATE442083T1 true ATE442083T1 (de) 2009-09-15

Family

ID=19914250

Family Applications (1)

Application Number Title Priority Date Filing Date
AT03812396T ATE442083T1 (de) 2002-12-03 2003-12-03 Lebendfingernachweis durch vier-punkte-messung der komplexen impedanz

Country Status (12)

Country Link
US (2) US7848798B2 (de)
EP (1) EP1567057B1 (de)
JP (1) JP4528130B2 (de)
KR (1) KR20050074650A (de)
CN (1) CN100401980C (de)
AT (1) ATE442083T1 (de)
AU (1) AU2003302594A1 (de)
DE (1) DE60329218D1 (de)
DK (1) DK1567057T3 (de)
ES (1) ES2333119T3 (de)
NO (2) NO20025803D0 (de)
WO (1) WO2004049942A1 (de)

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JP4788147B2 (ja) * 2005-01-26 2011-10-05 パナソニック電工株式会社 体脂肪測定装置
US7496216B2 (en) * 2005-06-21 2009-02-24 Hewlett-Packard Development Company, L.P. Fingerprint capture
JP5431147B2 (ja) * 2006-05-30 2014-03-05 インぺディメッド リミテッド インピーダンス測定
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US8276816B2 (en) 2007-12-14 2012-10-02 Validity Sensors, Inc. Smart card system with ergonomic fingerprint sensor and method of using
US8116540B2 (en) 2008-04-04 2012-02-14 Validity Sensors, Inc. Apparatus and method for reducing noise in fingerprint sensing circuits
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NO20083766L (no) 2008-09-01 2010-03-02 Idex Asa Overflatesensor
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US8391568B2 (en) 2008-11-10 2013-03-05 Validity Sensors, Inc. System and method for improved scanning of fingerprint edges
US8600122B2 (en) 2009-01-15 2013-12-03 Validity Sensors, Inc. Apparatus and method for culling substantially redundant data in fingerprint sensing circuits
US8278946B2 (en) 2009-01-15 2012-10-02 Validity Sensors, Inc. Apparatus and method for detecting finger activity on a fingerprint sensor
US8374407B2 (en) 2009-01-28 2013-02-12 Validity Sensors, Inc. Live finger detection
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NO20093601A1 (no) 2009-12-29 2011-06-30 Idex Asa Overflatesensor
US8791792B2 (en) 2010-01-15 2014-07-29 Idex Asa Electronic imager using an impedance sensor grid array mounted on or about a switch and method of making
US8866347B2 (en) 2010-01-15 2014-10-21 Idex Asa Biometric image sensing
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US9001040B2 (en) 2010-06-02 2015-04-07 Synaptics Incorporated Integrated fingerprint sensor and navigation device
RU2013105790A (ru) 2010-07-13 2014-08-20 Скотт МАКНАЛТИ Система, способ и установка для снятия биометрических данных
US8717775B1 (en) 2010-08-02 2014-05-06 Amkor Technology, Inc. Fingerprint sensor package and method
US8331096B2 (en) 2010-08-20 2012-12-11 Validity Sensors, Inc. Fingerprint acquisition expansion card apparatus
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US8594393B2 (en) 2011-01-26 2013-11-26 Validity Sensors System for and method of image reconstruction with dual line scanner using line counts
US9406580B2 (en) 2011-03-16 2016-08-02 Synaptics Incorporated Packaging for fingerprint sensors and methods of manufacture
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US9195877B2 (en) * 2011-12-23 2015-11-24 Synaptics Incorporated Methods and devices for capacitive image sensing
US9251329B2 (en) 2012-03-27 2016-02-02 Synaptics Incorporated Button depress wakeup and wakeup strategy
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US9600709B2 (en) 2012-03-28 2017-03-21 Synaptics Incorporated Methods and systems for enrolling biometric data
EP2836960B1 (de) 2012-04-10 2018-09-26 Idex Asa Biometrische erfassung
US9471764B2 (en) 2012-07-19 2016-10-18 Apple Inc. Electronic device switchable to a user-interface unlocked mode based upon spoof detection and related methods
US10624583B2 (en) * 2012-11-09 2020-04-21 Nonin Medical, Inc. Reactance sensing for improved sensor placement
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US20150320361A1 (en) * 2013-01-29 2015-11-12 Seca Ag Method for testing plausibility
US9104901B2 (en) * 2013-03-15 2015-08-11 Apple Inc. Electronic device including interleaved biometric spoof detection data acquisition and related methods
CN103440474A (zh) * 2013-08-12 2013-12-11 江苏恒成高科信息科技有限公司 半导体指纹读取传感器装置
CN114639126A (zh) * 2014-02-25 2022-06-17 Hid环球公司 生物计量传感器
EP3111837B1 (de) * 2014-02-25 2020-10-28 School Juridical Person The Kitasato Institute Bilderzeugungsvorrichtung und bilderzeugungsverfahren
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US10874559B2 (en) * 2014-12-11 2020-12-29 Essity Hygiene And Health Aktiebolag Impedance sensors for detecting and monitoring moisture in absorbent articles
CN113331813B (zh) * 2015-01-08 2024-06-11 美达森斯生物测定有限公司 用于生理监测的电极阵列和包括或利用电极阵列的设备
CN106156697B (zh) * 2015-03-30 2020-05-26 联想(北京)有限公司 一种信息处理方法及装置
CN106156698A (zh) * 2015-03-30 2016-11-23 联想(北京)有限公司 一种信息处理方法及电子设备
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TWI612298B (zh) * 2016-07-22 2018-01-21 奇景光電股份有限公司 材料辨識系統及相關辨識方法
CN107664656B (zh) * 2016-07-28 2020-06-30 奇景光电股份有限公司 材料辨识系统及材料辨识方法
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TWI666590B (zh) * 2018-04-10 2019-07-21 友達光電股份有限公司 指紋感測面板及其指紋感測器
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Also Published As

Publication number Publication date
US20050281441A1 (en) 2005-12-22
NO339828B1 (no) 2017-02-13
US20110074443A1 (en) 2011-03-31
EP1567057A1 (de) 2005-08-31
CN1720001A (zh) 2006-01-11
AU2003302594A1 (en) 2004-06-23
US7848798B2 (en) 2010-12-07
ES2333119T3 (es) 2010-02-17
JP2006508734A (ja) 2006-03-16
JP4528130B2 (ja) 2010-08-18
US8195285B2 (en) 2012-06-05
NO20025803D0 (no) 2002-12-03
DE60329218D1 (de) 2009-10-22
NO20053222L (no) 2005-06-30
EP1567057B1 (de) 2009-09-09
HK1087317A1 (en) 2006-10-13
CN100401980C (zh) 2008-07-16
WO2004049942A1 (en) 2004-06-17
NO20053222D0 (no) 2005-06-30
KR20050074650A (ko) 2005-07-18
DK1567057T3 (da) 2009-11-23

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