KR101108966B1 - 2d 및 3d 영상을 위한 주파수-조정 음향 세트 배열 실시시스템 및 그 방법 - Google Patents
2d 및 3d 영상을 위한 주파수-조정 음향 세트 배열 실시시스템 및 그 방법 Download PDFInfo
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- KR101108966B1 KR101108966B1 KR1020067000742A KR20067000742A KR101108966B1 KR 101108966 B1 KR101108966 B1 KR 101108966B1 KR 1020067000742 A KR1020067000742 A KR 1020067000742A KR 20067000742 A KR20067000742 A KR 20067000742A KR 101108966 B1 KR101108966 B1 KR 101108966B1
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- 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
- G10K11/34—Sound-focusing or directing, e.g. scanning using electrical steering of transducer arrays, e.g. beam steering
- G10K11/341—Circuits therefor
- G10K11/343—Circuits therefor using frequency variation or different frequencies
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- 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
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- 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
- G01S15/895—Short-range imaging systems; Acoustic microscope systems using pulse-echo techniques characterised by the transmitted frequency spectrum
- G01S15/8952—Short-range imaging systems; Acoustic microscope systems using pulse-echo techniques characterised by the transmitted frequency spectrum using discrete, multiple frequencies
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- 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
- G01S15/8993—Three dimensional imaging systems
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- 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
- G01S7/56—Display arrangements
- G01S7/62—Cathode-ray tube displays
- G01S7/6245—Stereoscopic displays; Three-dimensional displays; Pseudo-three dimensional displays
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- 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
- G10K11/34—Sound-focusing or directing, e.g. scanning using electrical steering of transducer arrays, e.g. beam steering
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Acoustics & Sound (AREA)
- Computer Networks & Wireless Communication (AREA)
- General Physics & Mathematics (AREA)
- Multimedia (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
- Ultra Sonic Daignosis Equipment (AREA)
- Transducers For Ultrasonic Waves (AREA)
Abstract
Description
Claims (29)
- 입력 음향 신호로부터 주파수에 의해 조향 가능한 다수의 각분산된(anularly dispersed) 음향 빔을 발생하는 다수의 음향 변환기 요소(acoustic transducer element)를 포함하는 음향 어레이(acoustic array) 장치에 있어서, 상기 음향 어레이 장치는 평면 또는 곡선 프로파일(profile)을 가지며, 주파수 조향형 음향 어레이 장치는 m = ½ , m = ¼ , m = 1/8, m = 1/16 및 m = l/n 중에서 선택된 하나의 차수로 동작하며, 이때, m은 어레이의 2개의 연속하는 요소 간의 코히런트(coherent)한 파장의 개수, 또는 분수(fraction)이며, n은 임의의 양수, 또는 음수인 것을 특징으로 하는 음향 어레이 장치.
- 제 1 항에 있어서, 상기 음향 어레이 장치는 다차(multi-order) 어레이 장치이며, m = ½ , m = ¼ , m = 1/8, m = 1/16 및 m = l/n 중에서 선택된 둘 이상의 차수의 조합으로 동작하는 것을 특징으로 하는 음향 어레이 장치.
- 제 1 항 또는 제 2 항에 있어서, 상기 음향 어레이 장치는 둘 이상의 시야(field of view)를 생성하도록 구성되며, 어레이는 다수의 음향 변환기 요소를 포함하고, 각각의 요소는 이웃하는 요소에 대해 위상-편이되며, 각각의 요소는, 상기 요소의 일부분의 극성(polarity), 또는 위상 편이값, 또는 상호 연결을 스위칭하는 제어기(controller)와 전기적으로 통신하여, 활성 주파수-조향형 시야(frequency-steered field of view)를 선택하는 것을 특징으로 하는 음향 어레이 장치.
- 제 3 항에 있어서, 주파수-조향형 음향 빔(frequency-steered acoustic beam)을, 어레이의 평면에 수직인 평면에 대해 대칭인 둘 이상의 시야로 송신, 또는 수신하는 것을 특징으로 하는 음향 어레이 장치.
- 제 1 항에 있어서, 음향 변환기 요소는 서로 특정 거리, 또는 위상 편이값 만큼 이격되어 있으며, 이때, 각각의 음향 변환기 요소와 이웃하는 음향 변환기 요소 간의 특정 거리, 또는 위상 편이값은 일정한 것을 특징으로 하는 음향 어레이 장치.
- 제 1 항에 있어서, 음향 변환기 요소는 서로 특정 거리, 또는 위상 편이값 만큼 이격되어 있으며, 이때, 각각의 음향 변환기 요소와 이웃하는 음향 변환기 요소 간의 특정 거리, 또는 위상 편이값은 일정하지 않은 것을 특징으로 하는 음향 어레이 장치.
- 제 1 항에 있어서, 제 2 음향 어레이 장치와 조합될 때, 상기 음향 어레이 장치는 주파수 조향 평면(frequency steering plane)에서, 서로에 대해 특정 각도로 배향되는 어레이 면(array face)을 갖도록 배열되며, 이로써, 어레이 장치 조합은 서로 다른 시야로 음향 펄스를 송신, 또는 수신하는 것을 특징으로 하는 음향 어레이 장치.
- 제 1 항에 있어서, 제 2 주파수-조향형 어레이 장치와 조합될 때, 상기 음향 어레이 장치는 서로에 대해 특정 각도로 배향되는 어레이 면(array face)을 갖도록 배열되며, 주파수 조향형 평면은 서로에 대해 직교하도록 배향되는 것을 특징으로 하는 음향 어레이 장치.
- 제 1 항에 있어서,상기 음향 어레이 장치를 스캐닝하기 위한 기계적 조향 수단을 더 포함하는 것을 특징으로 하는 음향 어레이 장치.
- 음향 이미징 시스템(acoustic imaging system)에 있어서, 상기 시스템은,송신 모드에서 어레이 장치로 음향 입력을 제공하는 음향 펄스 발생기(acoustic pulse generator)와 전기적으로 통신하고, 수신 모드에서 음향 수신기(acoustic receiver)와 전기적으로 통신하는, 제 1 항에 따르는 주파수-조향형 어레이 장치, 또는 어레이 장치 조합과,수신된 음향 신호로부터 각도 및 레인지(range) 정보를 발생하고, 각도 및 레인지 정보를 나타내는 이미지를 생성하기 위해 시-주파수 신호 분석(time-frequency signal analysis)을 이용하는 신호 프로세서와,상기 이미지를 디스플레이하기 위한 이미지 디스플레이 장치를 포함하는 것을 특징으로 하는 음향 이미징 시스템.
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Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
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US48598103P | 2003-07-11 | 2003-07-11 | |
US60/485,981 | 2003-07-11 | ||
US54911104P | 2004-03-01 | 2004-03-01 | |
US60/549,111 | 2004-03-01 | ||
PCT/US2004/022377 WO2005008272A2 (en) | 2003-07-11 | 2004-07-12 | Systems and methods implementing frequency-steered acoutic arrays for 2d and 3d imaging |
Publications (2)
Publication Number | Publication Date |
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KR20060035750A KR20060035750A (ko) | 2006-04-26 |
KR101108966B1 true KR101108966B1 (ko) | 2012-01-31 |
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Application Number | Title | Priority Date | Filing Date |
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KR1020067000742A KR101108966B1 (ko) | 2003-07-11 | 2004-07-12 | 2d 및 3d 영상을 위한 주파수-조정 음향 세트 배열 실시시스템 및 그 방법 |
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US (3) | US8811120B2 (ko) |
EP (1) | EP1656568B1 (ko) |
JP (1) | JP2007535195A (ko) |
KR (1) | KR101108966B1 (ko) |
AU (1) | AU2004258175B2 (ko) |
CA (1) | CA2530290C (ko) |
WO (1) | WO2005008272A2 (ko) |
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