ATE181164T1 - 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
ATE181164T1
ATE181164T1 AT92900049T AT92900049T ATE181164T1 AT E181164 T1 ATE181164 T1 AT E181164T1 AT 92900049 T AT92900049 T AT 92900049T AT 92900049 T AT92900049 T AT 92900049T AT E181164 T1 ATE181164 T1 AT E181164T1
Authority
AT
Austria
Prior art keywords
ultrasonic
processing circuit
probe
finger
imaging
Prior art date
Application number
AT92900049T
Other languages
English (en)
Inventor
William E Glenn
John K Schneider
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 ATE181164T1 publication Critical patent/ATE181164T1/de

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
AT92900049T 1990-11-07 1991-11-06 Abbildung einer gewebe mit einer fingerabdruckfläche mit hochauflösendem c-abtast- ultraschalldetektor ATE181164T1 (de)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
ATE181164T1 true ATE181164T1 (de) 1999-06-15

Family

ID=24444985

Family Applications (1)

Application Number Title Priority Date Filing Date
AT92900049T ATE181164T1 (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
US5689576A (en) 1997-11-18
DE69131323D1 (de) 1999-07-15
US5224174A (en) 1993-06-29
CA2094241A1 (en) 1992-05-08
WO1992009049A1 (en) 1992-05-29
EP0556289B1 (de) 1999-06-09
EP0556289A1 (de) 1993-08-25
EP0556289A4 (en) 1994-06-08
US5587533A (en) 1996-12-24
CA2094241C (en) 2002-04-23

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