WO2001094892A3 - Velocity measurement - center of gravity - Google Patents

Velocity measurement - center of gravity Download PDF

Info

Publication number
WO2001094892A3
WO2001094892A3 PCT/NO2001/000241 NO0100241W WO0194892A3 WO 2001094892 A3 WO2001094892 A3 WO 2001094892A3 NO 0100241 W NO0100241 W NO 0100241W WO 0194892 A3 WO0194892 A3 WO 0194892A3
Authority
WO
WIPO (PCT)
Prior art keywords
sensors
gravity
center
velocity measurement
calculation
Prior art date
Application number
PCT/NO2001/000241
Other languages
French (fr)
Other versions
WO2001094892A2 (en
Inventor
Stig Mathiassen
Svein Mathiassen
Original Assignee
Idex As
Stig Mathiassen
Svein Mathiassen
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 As, Stig Mathiassen, Svein Mathiassen filed Critical Idex As
Priority to AU2001264432A priority Critical patent/AU2001264432A1/en
Publication of WO2001094892A2 publication Critical patent/WO2001094892A2/en
Publication of WO2001094892A3 publication Critical patent/WO2001094892A3/en

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
    • G06V40/1335—Combining adjacent partial images (e.g. slices) to create a composite input or reference pattern; Tracking a sweeping finger movement
    • 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)
  • Image Input (AREA)

Abstract

This invention relates to a method for determining the velocity of a structured surface, especially a finger surface, moving relative to at least two in the direction of movement positioned sensors, having a predetermined distance between them, the sensors measuring the variation of a predetermined characteristic of said surface, comprising repeated measurements of the finger surface characteristic and calculation of the position of at least one of the extreme values, i.e. the maximum and/or minimum, along the time axis for each sensor, and based on these positions as well as the known distance between the sensors calculation of the surface velocity relative to the sensors.
PCT/NO2001/000241 2000-06-09 2001-06-08 Velocity measurement - center of gravity WO2001094892A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2001264432A AU2001264432A1 (en) 2000-06-09 2001-06-08 Velocity measurement - center of gravity

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NO20003007 2000-06-09
NO20003007A NO20003007L (en) 2000-06-09 2000-06-09 Fingerprint sensor speed calculation

Publications (2)

Publication Number Publication Date
WO2001094892A2 WO2001094892A2 (en) 2001-12-13
WO2001094892A3 true WO2001094892A3 (en) 2002-05-02

Family

ID=19911253

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NO2001/000241 WO2001094892A2 (en) 2000-06-09 2001-06-08 Velocity measurement - center of gravity

Country Status (3)

Country Link
AU (1) AU2001264432A1 (en)
NO (1) NO20003007L (en)
WO (1) WO2001094892A2 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7697729B2 (en) 2004-01-29 2010-04-13 Authentec, Inc. System for and method of finger initiated actions
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
US8866347B2 (en) 2010-01-15 2014-10-21 Idex Asa Biometric image sensing
US9235274B1 (en) 2006-07-25 2016-01-12 Apple Inc. Low-profile or ultra-thin navigation pointing or haptic feedback device
US9600704B2 (en) 2010-01-15 2017-03-21 Idex Asa Electronic imager using an impedance sensor grid array and method of making

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7190251B2 (en) 1999-05-25 2007-03-13 Varatouch Technology Incorporated Variable resistance devices and methods
FR2894049B1 (en) * 2005-11-25 2008-01-04 Atmel Grenoble Soc Par Actions DEVICE FOR REACTIVATING AN APPARATUS SET IN SLEEP MODE
WO2007097979A2 (en) 2006-02-10 2007-08-30 Atrua Technologies, Inc. Systems using variable resistance zones and stops for generating inputs to an electronic device
US20130279769A1 (en) 2012-04-10 2013-10-24 Picofield Technologies Inc. Biometric Sensing

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5864296A (en) * 1997-05-19 1999-01-26 Trw Inc. Fingerprint detector using ridge resistance sensor
WO1999043258A1 (en) * 1998-02-26 1999-09-02 Idex As Fingerprint sensor

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5864296A (en) * 1997-05-19 1999-01-26 Trw Inc. Fingerprint detector using ridge resistance sensor
WO1999043258A1 (en) * 1998-02-26 1999-09-02 Idex As Fingerprint sensor

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7697729B2 (en) 2004-01-29 2010-04-13 Authentec, Inc. System for and method of finger initiated actions
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
US9235274B1 (en) 2006-07-25 2016-01-12 Apple Inc. Low-profile or ultra-thin navigation pointing or haptic feedback device
US8866347B2 (en) 2010-01-15 2014-10-21 Idex Asa Biometric image sensing
US9268988B2 (en) 2010-01-15 2016-02-23 Idex Asa Biometric image sensing
US9600704B2 (en) 2010-01-15 2017-03-21 Idex Asa Electronic imager using an impedance sensor grid array and method of making

Also Published As

Publication number Publication date
WO2001094892A2 (en) 2001-12-13
NO20003007D0 (en) 2000-06-09
NO20003007L (en) 2001-12-10
AU2001264432A1 (en) 2001-12-17

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