CA2094241A1 - Surface feature mapping using high resolution c-scan ultrasonography - Google Patents

Surface feature mapping using high resolution c-scan ultrasonography

Info

Publication number
CA2094241A1
CA2094241A1 CA002094241A CA2094241A CA2094241A1 CA 2094241 A1 CA2094241 A1 CA 2094241A1 CA 002094241 A CA002094241 A CA 002094241A CA 2094241 A CA2094241 A CA 2094241A CA 2094241 A1 CA2094241 A1 CA 2094241A1
Authority
CA
Canada
Prior art keywords
ultrasonic
scan
finger
imaging
high resolution
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.)
Granted
Application number
CA002094241A
Other languages
French (fr)
Other versions
CA2094241C (en
Inventor
William E. Glenn
John K. Schneider
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.)
Ultra Scan Corp
Original Assignee
William E. Glenn
John K. Schneider
Niagara Technology Incorporated
Ultra-Scan Corporation
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 William E. Glenn, John K. Schneider, Niagara Technology Incorporated, Ultra-Scan Corporation filed Critical William E. Glenn
Publication of CA2094241A1 publication Critical patent/CA2094241A1/en
Application granted granted Critical
Publication of CA2094241C publication Critical patent/CA2094241C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/18—Methods or devices for transmitting, conducting or directing sound
    • G10K11/26—Sound-focusing or directing, e.g. scanning
    • G10K11/35—Sound-focusing or directing, e.g. scanning using mechanical steering of transducers or their beams
    • G10K11/357—Sound-focusing or directing, e.g. scanning using mechanical steering of transducers or their beams by moving a reflector
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
    • G01S15/88—Sonar systems specially adapted for specific applications
    • G01S15/89—Sonar systems specially adapted for specific applications for mapping or imaging
    • G01S15/8906—Short-range imaging systems; Acoustic microscope systems using pulse-echo techniques
    • G01S15/8934—Short-range imaging systems; Acoustic microscope systems using pulse-echo techniques using a dynamic transducer configuration
    • G01S15/8947—Short-range imaging systems; Acoustic microscope systems using pulse-echo techniques using a dynamic transducer configuration using transducers movable by (electro)magnetic means
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/52—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00
    • G01S7/52017—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00 particularly adapted to short-range imaging
    • G01S7/52053—Display arrangements
    • G01S7/52057—Cathode ray tube displays
    • G01S7/5206—Two-dimensional coordinated display of distance and direction; B-scan display
    • G01S7/52061—Plan position indication (PPI display); C-scan display
    • 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
    • G01S15/88—Sonar systems specially adapted for specific applications
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
    • G01S15/88—Sonar systems specially adapted for specific applications
    • G01S15/89—Sonar systems specially adapted for specific applications for mapping or imaging
    • G01S15/8906—Short-range imaging systems; Acoustic microscope systems using pulse-echo techniques
    • G01S15/8995—Combining images from different aspect angles, e.g. spatial compounding

Abstract

An ultrasonic system and method for imaging a surface wherein a C-mode ultrasonic scan is performed over a fixed area of the surface and range gating is applied to that area to a given depth below the surface. For use of the system and method in fingerprint imaging, a live finger is placed upon a sensitive surface, the portion of the finger on the surface is scanned using the ultrasonic energy, and ultrasonic energy returned from the finger portion is received to capture an electronic image of the pattern of ridges and valleys of the fingerprint. The ultrasonic imaging system comprises a probe (102) for providing a directed output ultrasonic beam to scan the surface and to receive ultrasonic echos from the surface, a pulser-receiver (104), a signal processing circuit (108). The probe scans the surface along one direction, and then along another direction, the two directions preferably be-ing orthogonal.
CA002094241A 1990-11-07 1991-11-06 Surface feature mapping using high resolution c-scan ultrasonography Expired - Lifetime CA2094241C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US610,429 1990-11-07
US07/610,429 US5224174A (en) 1990-11-07 1990-11-07 Surface feature mapping using high resolution c-scan ultrasonography
PCT/US1991/008321 WO1992009049A1 (en) 1990-11-07 1991-11-06 Surface feature mapping using high resolution c-scan ultrasonography

Publications (2)

Publication Number Publication Date
CA2094241A1 true CA2094241A1 (en) 1992-05-08
CA2094241C CA2094241C (en) 2002-04-23

Family

ID=24444985

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002094241A Expired - Lifetime CA2094241C (en) 1990-11-07 1991-11-06 Surface feature mapping using high resolution c-scan ultrasonography

Country Status (6)

Country Link
US (3) US5224174A (en)
EP (1) EP0556289B1 (en)
AT (1) ATE181164T1 (en)
CA (1) CA2094241C (en)
DE (1) DE69131323D1 (en)
WO (1) WO1992009049A1 (en)

Families Citing this family (107)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5224174A (en) * 1990-11-07 1993-06-29 Niagara Technology Incorporated Surface feature mapping using high resolution c-scan ultrasonography
DE4222387C2 (en) * 1992-07-08 1994-06-30 Stockburger H Method and device for identifying the respective spatial structure of a test object
JP3057590B2 (en) * 1992-08-06 2000-06-26 中央発條株式会社 Personal identification device
EP0647119A1 (en) * 1993-04-30 1995-04-12 JENOPTIK GmbH Device for identifying fingerprints using ultrasonics
US5456256A (en) * 1993-11-04 1995-10-10 Ultra-Scan Corporation High resolution ultrasonic imaging apparatus and method
JPH07184898A (en) * 1993-12-28 1995-07-25 Olympus Optical Co Ltd Ultrasonic probe
US5448649A (en) * 1994-05-24 1995-09-05 Chen; Wang S. Apparatus for imaging fingerprint or topographic relief pattern on the surface of an object
US5647364A (en) 1995-02-15 1997-07-15 Ultra-Scan Corporation Ultrasonic biometric imaging and identity verification system
JPH0981725A (en) * 1995-09-08 1997-03-28 Hamamatsu Photonics Kk Human collating device
US5764018A (en) * 1995-09-29 1998-06-09 Hewlett-Packard Co. Hysteresis removal for positioning systems with variable backlash and stiction
US5715060A (en) * 1996-03-11 1998-02-03 Carnegie Mellon University Apparatus and method for measuring linear nanometric distances using evanescent radiation
IN191434B (en) * 1996-04-10 2003-12-06 Siemens Ag
WO1997041527A1 (en) * 1996-05-01 1997-11-06 Xros, Inc. Compact, simple, 2d raster, image-building fingerprint scanner
FR2749955B1 (en) * 1996-06-14 1998-09-11 Thomson Csf FINGERPRINT READING SYSTEM
US5978495A (en) * 1996-07-17 1999-11-02 Intelnet Inc. Method and apparatus for accurate determination of the identity of human beings
DE69735411T2 (en) 1996-10-09 2006-09-07 Symyx Technologies, Inc., Santa Clara INFRARED SPECTROSCOPY AND LIBRARY IMAGING
US5953442A (en) * 1997-07-24 1999-09-14 Litton Systems, Inc. Fingerprint classification via spatial frequency components
US6020988A (en) * 1997-08-05 2000-02-01 Science Research Laboratory, Inc. Ultra high resolution wave focusing method and apparatus and systems employing such method and apparatus
US6393895B1 (en) 1997-10-08 2002-05-28 Symyx Technologies, Inc. Method and apparatus for characterizing materials by using a mechanical resonator
US6494079B1 (en) 2001-03-07 2002-12-17 Symyx Technologies, Inc. Method and apparatus for characterizing materials by using a mechanical resonator
AU1593699A (en) * 1997-11-20 1999-06-15 Quo Technologies, L.L.C. Method and system for biometric recognition using unique internal distinguishingcharacteristics
US6238501B1 (en) 1998-06-18 2001-05-29 The United States Of America As Represented By The Secretary Of The Army TNAZ compositions and articles, processes of preparation, TNAZ solutions and uses thereof
JP3281867B2 (en) * 1998-08-05 2002-05-13 三菱重工業株式会社 Signal processing device
US6870946B1 (en) 1998-08-06 2005-03-22 Secugen Corporation Compact optical fingerprint capturing and recognition system
US6548026B1 (en) 1998-08-13 2003-04-15 Symyx Technologies, Inc. Parallel reactor with internal sensing and method of using same
US6864092B1 (en) 1998-08-13 2005-03-08 Symyx Technologies, Inc. Parallel reactor with internal sensing and method of using same
US6306658B1 (en) 1998-08-13 2001-10-23 Symyx Technologies Parallel reactor with internal sensing
US6528026B2 (en) 1998-08-13 2003-03-04 Symyx Technologies, Inc. Multi-temperature modular reactor and method of using same
US6455316B1 (en) 1998-08-13 2002-09-24 Symyx Technologies, Inc. Parallel reactor with internal sensing and method of using same
US7549960B2 (en) * 1999-03-11 2009-06-23 Biosense, Inc. Implantable and insertable passive tags
US7575550B1 (en) 1999-03-11 2009-08-18 Biosense, Inc. Position sensing based on ultrasound emission
US7590441B2 (en) 1999-03-11 2009-09-15 Biosense, Inc. Invasive medical device with position sensing and display
US7174201B2 (en) * 1999-03-11 2007-02-06 Biosense, Inc. Position sensing system with integral location pad and position display
US7558616B2 (en) 1999-03-11 2009-07-07 Biosense, Inc. Guidance of invasive medical procedures using implantable tags
EP1194909A4 (en) * 1999-06-07 2003-05-02 Traptec Corp Graffiti detection system and method of using the same
JP4578041B2 (en) 1999-08-09 2010-11-10 ソナベーション， インコーポレイテッド Piezoelectric fingerprint scanner
AU1330501A (en) 1999-10-07 2001-05-10 Veridicom, Inc. Spoof detection for biometric sensing systems
US6552841B1 (en) 2000-01-07 2003-04-22 Imperium Advanced Ultrasonic Imaging Ultrasonic imager
JP2003527906A (en) * 2000-03-23 2003-09-24 クロス マッチ テクノロジーズ， インコーポレイテッド Piezoelectric identification device and its application
US20030001459A1 (en) * 2000-03-23 2003-01-02 Cross Match Technologies, Inc. Secure wireless sales transaction using print information to verify a purchaser's identity
US7067962B2 (en) 2000-03-23 2006-06-27 Cross Match Technologies, Inc. Multiplexer for a piezo ceramic identification device
US6518560B1 (en) * 2000-04-27 2003-02-11 Veridicom, Inc. Automatic gain amplifier for biometric sensor device
US6994827B2 (en) * 2000-06-03 2006-02-07 Symyx Technologies, Inc. Parallel semicontinuous or continuous reactors
US6956608B1 (en) 2000-08-11 2005-10-18 Identix Incorporated Fingerprint imaging device including an optical plate having microreflectors
US20020131624A1 (en) * 2000-08-11 2002-09-19 Yury Shapiro Fingerprint imaging device with fake finger detection
US7627145B2 (en) 2000-09-06 2009-12-01 Hitachi, Ltd. Personal identification device and method
JP3558025B2 (en) * 2000-09-06 2004-08-25 株式会社日立製作所 Personal authentication device and method
WO2002061452A1 (en) 2001-01-29 2002-08-08 Siemens Aktiengesellschaft Method and device for receiving a c image by means of a b image unit
US8463878B2 (en) * 2001-04-10 2013-06-11 Transpacific Optics Llc Network server for providing scanning functionality to a computer
WO2002099414A1 (en) 2001-06-06 2002-12-12 Symyx Technologies, Inc. Flow detectors having mechanical oscillators, and use thereof in flow characterization systems
ATE344504T1 (en) * 2001-06-27 2006-11-15 Activcard Ireland Ltd METHOD AND DEVICE FOR TRANSFORMING AN IMAGE OF A BIOLOGICAL SURFACE
KR100432490B1 (en) 2001-09-17 2004-05-22 (주)니트 젠 Optical fingerprint acquisition apparatus
DE60225224D1 (en) * 2001-11-14 2008-04-10 Hitachi Ltd System for starting an engine using biometric information
EP1503330B1 (en) 2002-05-09 2010-06-02 Sony Corporation Method of detecting biological pattern, biological pattern detector, method of biological certificate and biological certificate apparatus
AU2003282936A1 (en) * 2002-10-18 2004-05-04 Symyx Technologies, Inc. Environmental control system fluid sensing system and method comprising a sesnsor with a mechanical resonator
US7043969B2 (en) * 2002-10-18 2006-05-16 Symyx Technologies, Inc. Machine fluid sensor and method
DE10305603B4 (en) * 2003-02-11 2009-12-03 Siemens Ag Device for generating a three-dimensional ultrasound image
DE602004013753D1 (en) * 2003-03-21 2008-06-26 Hella Kgaa Hueck & Co RESONATOR SENSOR UNIT
US7721590B2 (en) * 2003-03-21 2010-05-25 MEAS France Resonator sensor assembly
WO2004086027A2 (en) * 2003-03-21 2004-10-07 Symyx Technologies, Inc. Mechanical resonator
EP1661058B1 (en) * 2003-08-29 2007-12-19 Koninklijke Philips Electronics N.V. Biometrical identification device
US7351974B2 (en) * 2003-09-05 2008-04-01 Authentec, Inc. Integrated circuit infrared sensor and associated methods
US7321701B2 (en) * 2003-09-05 2008-01-22 Authentec, Inc. Infrared biometric finger sensor and associated methods
EP1678655B1 (en) * 2003-09-24 2008-11-12 Authentec, Inc. Finger biometric sensor with sensor electronics distributed over thin film and monocrystalline substrates and related methods
US7599530B2 (en) * 2003-10-01 2009-10-06 Authentec, Inc. Methods for matching ridge orientation characteristic maps and associated finger biometric sensor
US7616787B2 (en) * 2003-10-01 2009-11-10 Authentec, Inc. Methods for finger biometric processing and associated finger biometric sensors
US7787667B2 (en) * 2003-10-01 2010-08-31 Authentec, Inc. Spot-based finger biometric processing method and associated sensor
US8170366B2 (en) * 2003-11-03 2012-05-01 L-3 Communications Corporation Image processing using optically transformed light
US7400751B2 (en) * 2003-11-06 2008-07-15 Ultra-Scan Corporation Imaging device and method having a pivotable transducer
KR100561851B1 (en) * 2003-11-18 2006-03-16 삼성전자주식회사 Fingerprint Sensor and Fabrication Method thereof
WO2005070297A1 (en) * 2004-01-15 2005-08-04 Ultra-Scan Corporation Live-scan ultrasonic four-finger planar imaging scanner
US8724859B2 (en) * 2004-01-23 2014-05-13 Qualcomm Incorporated Fingerprint scanner and method having an acoustic detector
GB2414589A (en) * 2004-04-29 2005-11-30 Brian Vincent Conway Ultrasonic recognition system
US7497120B2 (en) * 2004-07-13 2009-03-03 Ultra-Scan Corporation Spinning disk ultrasonic transducer array and method
DE102004043875A1 (en) * 2004-09-10 2006-03-16 Frank Bechtold Method and system for optimizing recognition or recognition security in the identification or verification of test objects
WO2006060061A2 (en) * 2004-12-01 2006-06-08 Ultra-Scan Corporation Fingerprint scanning station
US7421099B2 (en) * 2005-08-17 2008-09-02 Ultra-Scan Corporation Use of papilla mapping to determine a friction-ridge surface
RU2318789C1 (en) 2006-10-16 2008-03-10 Общество с ограниченной ответственностью "ИФОХИМ" Explosive modifier
CN101583977B (en) * 2006-11-23 2011-11-16 锡克拜控股有限公司 Use of fingerprint recognition equipment for the authentication of sheet-like items
US8180120B2 (en) * 2007-03-09 2012-05-15 Authentec, Inc. Finger sensor using polarized light and associated methods
WO2008144932A1 (en) * 2007-05-31 2008-12-04 University Of Windsor Ultrasonic device for cosmetological human nail applications
CN100586376C (en) * 2007-11-27 2010-02-03 深圳市蓝韵实业有限公司 Digital family planning ultrasonic system and data acquisition method
US8050468B2 (en) * 2008-03-05 2011-11-01 Honeywell International Inc. Fingerprint acquisition system
US8331633B2 (en) * 2008-05-08 2012-12-11 Sonavation, Inc. Method and system for multi-mode mechanical resonator
US8335356B2 (en) * 2008-05-08 2012-12-18 Sonavation, Inc. Mechanical resonator optimization using shear wave damping
US8805031B2 (en) * 2008-05-08 2014-08-12 Sonavation, Inc. Method and system for acoustic impediography biometric sensing
US8605961B2 (en) * 2009-03-30 2013-12-10 Motorola Mobility Llc Method and apparatus for determining a physiological parameter using a fingerprint sensor on a portable electronic device
US8977013B2 (en) * 2010-07-12 2015-03-10 The Institute For Diagnostic Imaging Research, University Of Windsor Biometric sensor and method for generating a three-dimensional representation of a portion of a finger
EP3022683B1 (en) * 2013-07-16 2024-01-17 The Regents of The University of California Mut fingerprint identification system
US9665763B2 (en) * 2014-08-31 2017-05-30 Qualcomm Incorporated Finger/non-finger determination for biometric sensors
US9582705B2 (en) 2014-08-31 2017-02-28 Qualcomm Incorporated Layered filtering for biometric sensors
US9195879B1 (en) 2014-08-31 2015-11-24 Qualcomm Incorporated Air/object determination for biometric sensors
JP6421041B2 (en) * 2015-01-13 2018-11-07 株式会社日立ハイテクノロジーズ Charged particle beam equipment
US10067229B2 (en) * 2015-09-24 2018-09-04 Qualcomm Incorporated Receive-side beam forming for an ultrasonic image sensor
US10140534B2 (en) 2015-09-26 2018-11-27 Qualcomm Incorporated Ultrasonic imaging devices and methods
US10235551B2 (en) 2016-05-06 2019-03-19 Qualcomm Incorporated Biometric system with photoacoustic imaging
US10366269B2 (en) * 2016-05-06 2019-07-30 Qualcomm Incorporated Biometric system with photoacoustic imaging
US9946914B1 (en) * 2016-11-18 2018-04-17 Qualcomm Incorporated Liveness detection via ultrasonic ridge-valley tomography
CN106709308A (en) * 2016-12-29 2017-05-24 宇龙计算机通信科技(深圳)有限公司 Fingerprint recognition method, fingerprint recognition device and terminal
US10506926B2 (en) 2017-02-18 2019-12-17 Arc Devices Limited Multi-vital sign detector in an electronic medical records system
US10492684B2 (en) 2017-02-21 2019-12-03 Arc Devices Limited Multi-vital-sign smartphone system in an electronic medical records system
US11096672B2 (en) * 2017-07-21 2021-08-24 Crystalview Medical Imaging Ltd. Clutter suppression in ultrasonic imaging systems
US10602987B2 (en) 2017-08-10 2020-03-31 Arc Devices Limited Multi-vital-sign smartphone system in an electronic medical records system
US10485431B1 (en) 2018-05-21 2019-11-26 ARC Devices Ltd. Glucose multi-vital-sign system in an electronic medical records system
CN111510723B (en) * 2019-01-30 2022-02-22 奇景光电股份有限公司 Time sequence controller
WO2021247300A1 (en) 2020-06-01 2021-12-09 Arc Devices Limited Apparatus and methods for measuring blood pressure and other vital signs via a finger
CN114305486A (en) * 2020-09-30 2022-04-12 通用电气精准医疗有限责任公司 Scanning assembly for ultrasonic imaging device and ultrasonic imaging device

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3480002A (en) * 1967-01-24 1969-11-25 Magnaflux Corp Medical ultrasonic scanning system
JPS5454484A (en) * 1977-10-08 1979-04-28 Tokyo Shibaura Electric Co Ultrasonic wave diagnosis device
US4202120A (en) * 1978-04-10 1980-05-13 Engel Elton D Identification card, sensor, and system
US5202929A (en) * 1979-09-24 1993-04-13 Lemelson Jerome H Data system and method
US4325381A (en) * 1979-11-21 1982-04-20 New York Institute Of Technology Ultrasonic scanning head with reduced geometrical distortion
US4385831A (en) * 1980-09-22 1983-05-31 Siemens Corporation Device for investigation of a finger relief
US4362058A (en) * 1980-10-24 1982-12-07 New York University Ultrasonic diagnostic apparatus
AU539425B2 (en) * 1982-02-24 1984-09-27 Tokyo Shibaura Denki Kabushiki Kaisha Ultrasonic scanning array - focussing in two directions
US4434799A (en) * 1982-03-02 1984-03-06 Siemens Ag Ultrasound apparatus for medical examinations
US4457174A (en) * 1982-05-10 1984-07-03 Systems Research Laboratories Inc. Ultrasonic inspection of composite materials
US4547898A (en) * 1983-03-11 1985-10-15 Siemens Corporate Research & Support, Inc. Apparatus for determining the two-dimensional connectivity of a prescribed binary variable associated with a surface
US4574637A (en) * 1984-08-03 1986-03-11 Univ Ohio Method for measuring surface and near surface properties of materials
US4729128A (en) * 1985-06-10 1988-03-01 Grimes Marvin G Personal identification card system
US4799177A (en) * 1985-12-31 1989-01-17 The Boeing Company Ultrasonic instrumentation for examination of variable-thickness objects
DE3610397A1 (en) * 1986-03-27 1987-10-01 Storck Wolfgang METHOD FOR DETECTING A FINGERPRINT
ATE64484T1 (en) * 1986-05-06 1991-06-15 Siemens Ag ARRANGEMENT AND PROCEDURE FOR DETERMINING THE AUTHORIZATION OF INDIVIDUALS BY VERIFYING THEIR FINGERPRINTS.
US4917096A (en) * 1987-11-25 1990-04-17 Laboratory Equipment, Corp. Portable ultrasonic probe
DE3840498C1 (en) * 1988-12-01 1990-06-13 Rohde & Schwarz Gmbh & Co Kg, 8000 Muenchen, De
US5258922A (en) * 1989-06-12 1993-11-02 Wieslaw Bicz Process and device for determining of surface structures
US5224174A (en) * 1990-11-07 1993-06-29 Niagara Technology Incorporated Surface feature mapping using high resolution c-scan ultrasonography
US5454045A (en) * 1994-04-15 1995-09-26 Battelle Memorial Institute Apparatus and method for identification and recognition of an item with ultrasonic patterns from item subsurface micro-features

Also Published As

Publication number Publication date
US5689576A (en) 1997-11-18
US5587533A (en) 1996-12-24
EP0556289A1 (en) 1993-08-25
US5224174A (en) 1993-06-29
DE69131323D1 (en) 1999-07-15
ATE181164T1 (en) 1999-06-15
CA2094241C (en) 2002-04-23
WO1992009049A1 (en) 1992-05-29
EP0556289A4 (en) 1994-06-08
EP0556289B1 (en) 1999-06-09

Similar Documents

Publication Publication Date Title
CA2094241A1 (en) Surface feature mapping using high resolution c-scan ultrasonography
US6117080A (en) Ultrasonic imaging apparatus and method for breast cancer diagnosis with the use of volume rendering
US4339952A (en) Cylindrical transducer ultrasonic scanner
CA1074901A (en) High resolution pulse echo ultrasonic imaging display system
ATE245056T1 (en) ULTRASONIC SENSING CONVERSION WITH SPATIAL JAMMER
JPH09507031A (en) High resolution ultrasonic imaging apparatus and method
ATE155894T1 (en) POSITION DETECTION USING ULTRASONIC DOPPLER EFFECT
CA2238184A1 (en) Three-dimensional imaging system
DE59807966D1 (en) Method for examining objects with ultrasound
JPS5786982A (en) Finger print reader
JP2001510693A (en) Method and apparatus for capturing ultrasound images
DE69020723T2 (en) Device for ultrasound diagnosis.
CA1074900A (en) High resolution pulse echo ultrasonic imaging display system
EP0570998A3 (en) Ultrasonic diagnostic apparatus
EP0084174B1 (en) Ultrasonic microscope
JPS6255626B2 (en)
EP0770353A3 (en) Ultrasonic diagnosing apparatus
US4325258A (en) Conical transducer ultrasonic scanning
US6048313A (en) Method and apparatus for fractal-based enhancement of ultrasound imaging
EP1679513A3 (en) Physical parameter measuring apparatus and method thereof
JPS6348264U (en)
JPH0257972A (en) Ultrasonic microscope
US5291786A (en) Ultrasonic microscope
JPH04138145A (en) Ultrasonic probe
JPH02213330A (en) Ultrasonic diagnostic apparatus

Legal Events

Date Code Title Description
EEER Examination request
MKEX Expiry