DE69131323D1 - Abbildung einer gewebe mit einer fingerabdruckfläche mit hochauflösendem c-abtast-ultraschalldetektor - Google Patents

Abbildung einer gewebe mit einer fingerabdruckfläche mit hochauflösendem c-abtast-ultraschalldetektor

Info

Publication number
DE69131323D1
DE69131323D1 DE69131323T DE69131323T DE69131323D1 DE 69131323 D1 DE69131323 D1 DE 69131323D1 DE 69131323 T DE69131323 T DE 69131323T DE 69131323 T DE69131323 T DE 69131323T DE 69131323 D1 DE69131323 D1 DE 69131323D1
Authority
DE
Germany
Prior art keywords
ultrasonic
processing circuit
probe
finger
imaging
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.)
Expired - Lifetime
Application number
DE69131323T
Other languages
English (en)
Inventor
William Glenn
John 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
Ultra Scan Corp
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 Ultra Scan Corp filed Critical Ultra Scan Corp
Application granted granted Critical
Publication of DE69131323D1 publication Critical patent/DE69131323D1/de
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
DE69131323T 1990-11-07 1991-11-06 Abbildung einer gewebe mit einer fingerabdruckfläche mit hochauflösendem c-abtast-ultraschalldetektor Expired - Lifetime DE69131323D1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
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 (1)

Publication Number Publication Date
DE69131323D1 true DE69131323D1 (de) 1999-07-15

Family

ID=24444985

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69131323T Expired - Lifetime DE69131323D1 (de) 1990-11-07 1991-11-06 Abbildung einer gewebe mit einer fingerabdruckfläche mit hochauflösendem c-abtast-ultraschalldetektor

Country Status (6)

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

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Also Published As

Publication number Publication date
EP0556289A4 (en) 1994-06-08
WO1992009049A1 (en) 1992-05-29
CA2094241A1 (en) 1992-05-08
CA2094241C (en) 2002-04-23
ATE181164T1 (de) 1999-06-15
US5587533A (en) 1996-12-24
EP0556289B1 (de) 1999-06-09
US5689576A (en) 1997-11-18
EP0556289A1 (de) 1993-08-25
US5224174A (en) 1993-06-29

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