AU2001264431A1 - System for real time finger surface pattern measurement - Google Patents

System for real time finger surface pattern measurement

Info

Publication number
AU2001264431A1
AU2001264431A1 AU2001264431A AU6443101A AU2001264431A1 AU 2001264431 A1 AU2001264431 A1 AU 2001264431A1 AU 2001264431 A AU2001264431 A AU 2001264431A AU 6443101 A AU6443101 A AU 6443101A AU 2001264431 A1 AU2001264431 A1 AU 2001264431A1
Authority
AU
Australia
Prior art keywords
sensor electrodes
stimulation electrode
voltage
surface pattern
current
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.)
Abandoned
Application number
AU2001264431A
Inventor
Ib-Rune Johansen
Jon Nysaether
Jon Tschudi
Ovidiu Vermesan
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.)
Idex Biometrics ASA
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
Publication of AU2001264431A1 publication Critical patent/AU2001264431A1/en
Abandoned legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Theoretical Computer Science (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
  • Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
  • Image Input (AREA)
  • Exposure And Positioning Against Photoresist Photosensitive Materials (AREA)
  • Collating Specific Patterns (AREA)
  • Eye Examination Apparatus (AREA)

Abstract

This invention relates to a system for measuring patterns in finger surfaces, the system comprising an array of sensor electrodes over which the surface is to be moved, and at least one stimulation electrode for providing a varying current or voltage between the stimulation electrode and the number of sensors through the surface. The stimulation electrode is positioned separately from the array of sensor electrodes and the system comprises a generator coupled to the stimulation electrode for applying a current or voltage with a varying amplitude or phase to the surface. The system comprises a measuring unit coupled to the sensor electrodes for, during the application of the current or voltage, measuring the impedance at the sensor electrodes in a time sequence and calculating values of predetermined characteristics of the surface and combining the calculated values for the sensor electrodes over the time sequence for generating a representation of the surface pattern.
AU2001264431A 2000-06-09 2001-06-08 System for real time finger surface pattern measurement Abandoned AU2001264431A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
NO20003005 2000-06-09
NO20003005A NO314647B1 (en) 2000-06-09 2000-06-09 Fingerprint sensor measurement system
PCT/NO2001/000240 WO2001094902A2 (en) 2000-06-09 2001-06-08 System for fingerprint and impedance measurement on a moving finger. the fingertip is moved over a sensor array and a stimulation electrode is positioned separately

Publications (1)

Publication Number Publication Date
AU2001264431A1 true AU2001264431A1 (en) 2001-12-17

Family

ID=19911251

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2001264431A Abandoned AU2001264431A1 (en) 2000-06-09 2001-06-08 System for real time finger surface pattern measurement

Country Status (7)

Country Link
EP (1) EP1292227B1 (en)
JP (1) JP2003535629A (en)
AT (1) ATE281786T1 (en)
AU (1) AU2001264431A1 (en)
DE (1) DE60107084T2 (en)
NO (1) NO314647B1 (en)
WO (1) WO2001094902A2 (en)

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US8447077B2 (en) 2006-09-11 2013-05-21 Validity Sensors, Inc. Method and apparatus for fingerprint motion tracking using an in-line array
US8131026B2 (en) 2004-04-16 2012-03-06 Validity Sensors, Inc. Method and apparatus for fingerprint image reconstruction
WO2005104012A1 (en) * 2004-04-16 2005-11-03 Validity Sensors, Inc. Finger position sensing methods and apparatus
US8229184B2 (en) 2004-04-16 2012-07-24 Validity Sensors, Inc. Method and algorithm for accurate finger motion tracking
US8165355B2 (en) 2006-09-11 2012-04-24 Validity Sensors, Inc. Method and apparatus for fingerprint motion tracking using an in-line array for use in navigation applications
US8175345B2 (en) 2004-04-16 2012-05-08 Validity Sensors, Inc. Unitized ergonomic two-dimensional fingerprint motion tracking device and method
US8358815B2 (en) 2004-04-16 2013-01-22 Validity Sensors, Inc. Method and apparatus for two-dimensional finger motion tracking and control
EP1747525A2 (en) 2004-04-23 2007-01-31 Validity Sensors Inc. Methods and apparatus for acquiring a swiped fingerprint image
EP1800243B1 (en) 2004-10-04 2010-08-11 Validity Sensors, Inc. Fingerprint sensing assemblies comprising a substrate
US7831070B1 (en) 2005-02-18 2010-11-09 Authentec, Inc. Dynamic finger detection mechanism for a fingerprint sensor
US8231056B2 (en) 2005-04-08 2012-07-31 Authentec, Inc. System for and method of protecting an integrated circuit from over currents
US7460697B2 (en) 2005-07-19 2008-12-02 Validity Sensors, Inc. Electronic fingerprint sensor with differential noise cancellation
CN100463647C (en) * 2005-09-30 2009-02-25 郭尧杰 Method for inspecting and re-constructing biophysical field
DE102005051530A1 (en) * 2005-10-26 2007-05-03 Joachim Aurich Sensor arrays reading method e.g. for fingerprint sensors, involves having array having electrical impedances in form of sensor elements, arranged as matrix, and connected to row and column conductor track
JP4943807B2 (en) * 2006-10-18 2012-05-30 日本電信電話株式会社 Impedance detection device, impedance detection method, biometric recognition device, and fingerprint authentication device
US8107212B2 (en) 2007-04-30 2012-01-31 Validity Sensors, Inc. Apparatus and method for protecting fingerprint sensing circuitry from electrostatic discharge
US8290150B2 (en) 2007-05-11 2012-10-16 Validity Sensors, Inc. Method and system for electronically securing an electronic device using physically unclonable functions
US8204281B2 (en) 2007-12-14 2012-06-19 Validity Sensors, Inc. System and method to remove artifacts from fingerprint sensor scans
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
US8005276B2 (en) 2008-04-04 2011-08-23 Validity Sensors, Inc. Apparatus and method for reducing parasitic capacitive coupling and noise in fingerprint sensing circuits
WO2010036445A1 (en) 2008-07-22 2010-04-01 Validity Sensors, Inc. System, device and method for securing a device component
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
US9274553B2 (en) 2009-10-30 2016-03-01 Synaptics Incorporated Fingerprint sensor and integratable electronic display
US9400911B2 (en) 2009-10-30 2016-07-26 Synaptics Incorporated Fingerprint sensor and integratable electronic display
US9336428B2 (en) 2009-10-30 2016-05-10 Synaptics Incorporated Integrated fingerprint sensor and display
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US9666635B2 (en) 2010-02-19 2017-05-30 Synaptics Incorporated Fingerprint sensing circuit
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US9001040B2 (en) 2010-06-02 2015-04-07 Synaptics Incorporated Integrated fingerprint sensor and navigation device
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US9195877B2 (en) 2011-12-23 2015-11-24 Synaptics Incorporated Methods and devices for capacitive image sensing
US9785299B2 (en) 2012-01-03 2017-10-10 Synaptics Incorporated Structures and manufacturing methods for glass covered electronic devices
US9268991B2 (en) 2012-03-27 2016-02-23 Synaptics Incorporated Method of and system for enrolling and matching biometric data
US9251329B2 (en) 2012-03-27 2016-02-02 Synaptics Incorporated Button depress wakeup and wakeup strategy
US9137438B2 (en) 2012-03-27 2015-09-15 Synaptics Incorporated Biometric object sensor and method
US9600709B2 (en) 2012-03-28 2017-03-21 Synaptics Incorporated Methods and systems for enrolling biometric data
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Also Published As

Publication number Publication date
JP2003535629A (en) 2003-12-02
WO2001094902A2 (en) 2001-12-13
WO2001094902A3 (en) 2002-04-04
NO20003005L (en) 2001-12-10
DE60107084T2 (en) 2006-03-02
EP1292227A2 (en) 2003-03-19
EP1292227B1 (en) 2004-11-10
NO314647B1 (en) 2003-04-22
ATE281786T1 (en) 2004-11-15
NO20003005D0 (en) 2000-06-09
DE60107084D1 (en) 2004-12-16

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