KR100947824B1 - 초음파 시스템에서 시그마-델타 아날로그-디지털 변환기를이용한 수신 집속 장치 - Google Patents
초음파 시스템에서 시그마-델타 아날로그-디지털 변환기를이용한 수신 집속 장치 Download PDFInfo
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- KR100947824B1 KR100947824B1 KR1020060028339A KR20060028339A KR100947824B1 KR 100947824 B1 KR100947824 B1 KR 100947824B1 KR 1020060028339 A KR1020060028339 A KR 1020060028339A KR 20060028339 A KR20060028339 A KR 20060028339A KR 100947824 B1 KR100947824 B1 KR 100947824B1
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- A—HUMAN NECESSITIES
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- A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/36—Detecting the response signal, e.g. electronic circuits specially adapted therefor
- G01N29/38—Detecting the response signal, e.g. electronic circuits specially adapted therefor by time filtering, e.g. using time gates
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/04—Analysing solids
- G01N29/07—Analysing solids by measuring propagation velocity or propagation time of acoustic waves
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/44—Processing the detected response signal, e.g. electronic circuits specially adapted therefor
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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
- G01S7/52017—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
- G01S7/52023—Details of receivers
- G01S7/52025—Details of receivers for pulse 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
- G01S7/52017—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
- G01S7/52023—Details of receivers
- G01S7/52034—Data rate converters
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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
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/01—Indexing codes associated with the measuring variable
- G01N2291/011—Velocity or travel time
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/04—Wave modes and trajectories
- G01N2291/044—Internal reflections (echoes), e.g. on walls or defects
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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
- G01S15/8909—Short-range imaging systems; Acoustic microscope systems using pulse-echo techniques using a static transducer configuration
- G01S15/8915—Short-range imaging systems; Acoustic microscope systems using pulse-echo techniques using a static transducer configuration using a transducer array
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- Acoustics & Sound (AREA)
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- Surgery (AREA)
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- Veterinary Medicine (AREA)
- Ultra Sonic Daignosis Equipment (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
Abstract
Description
Claims (6)
- 다수의 변환소자로 구성된 배열형 변환기를 구비한 초음파 시스템의 디지털 수신 집속 장치에 있어서,상기 배열형 변환기의 각 변환소자에 수신되는 초음파 에코 신호의 수신 지연시간에 근거하여 가변적으로 샘플링 클럭을 생성하고, 생성된 클럭의 주기에 대응하는 제어신호를 출력하기 위한 가변 샘플링 클럭 발생부;상기 배열형 변환기의 각 변환소자에서 출력된 아날로그 신호를 디지털 신호로 변환하되, 상기 샘플링 클럭에 응답하여 상기 변환소자에서 출력된 아날로그 신호를 샘플링하고, 상기 제어신호에 응답하여 커패시터 용량을 가변적으로 제어하여 적분기의 시정수를 일정하게 유지하도록 하는 시그마-델타 아날로그-디지털 변환기;상기 시그마-델타 아날로그-디지털 변환기의 출력신호를 지연하기 위한 지연부; 및상기 지연된 신호를 더하기 위한 가산기를 포함하는 초음파 시스템의 디지털 수신 집속 장치.
- 제 1 항에 있어서,상기 가변 샘플링 클럭 발생부는,집속점으로부터 반사된 신호가 각 변환소자에 도달하는 지연시간을 계산하기 위한 지연시간 계산부; 및상기 계산된 지연시간에 따라 샘플링 클럭을 생성하고, 생성된 클럭의 주기에 대응하는 제어신호를 출력하기 위한 샘플링 클럭 생성기를 포함하는 초음파 시스템의 디지털 수신 집속 장치.
- 제 1 항에 있어서,상기 시그마-델타 아날로그-디지털 변환기는,상기 샘플링 클럭에 응답하여 상기 변환소자에서 출력된 아날로그 신호를 샘플링하고 상기 제어 신호에 근거하여 커패시터 용량이 결정되는 가변 커패시터와 상기 가변 커패시터에 연결되는 OP-Amp를 포함하는 상기 적분기;상기 적분기 출력에 따라서 로직 "하이" 또는 "로우"의 1 비트를 출력하는 1-비트(bit) 아날로그-디지털 변환기; 및상기 1-비트 아날로그-디지털 변환기의 출력에 따라 기준 전압을 상기 적분기로 피드백하는 1-비트 디지털-아날로그 변환기를 포함하는 초음파 시스템의 디지털 수신 집속 장치.
- 제 3 항에 있어서,상기 가변 커패시터는 병렬로 연결된 다수의 단위 커패시터를 포함하는 초음파 시스템의 디지털 수신 집속 장치.
- 제 3 항에 있어서,상기 가변 커패시터는 샘플링 클럭의 주파수에 따라서 미리 설정된 커패시터 용량을 갖는 다수의 커패시터를 포함하는 초음파 시스템의 디지털 수신 집속 장치.
- 제 2 항에 있어서,상기 샘플링 클럭 생성기는,상기 생성된 클럭의 주기를 검출하기 위한 주기 검출부;각 주기에 대응하는 데이터를 저장하는 룩업 테이블을 포함하며, 상기 검출된 주기에 응답하여 상기 룩업 테이블로부터 해당 데이터를 출력하기 위한 룩업 테이블 저장부; 및상기 룩업 테이블 저장부로부터 출력된 데이터에 응답하여 상기 제어 신호를 출력하기 위한 제어 신호 출력부를 포함하는 초음파 시스템의 디지털 수신 집속 장치.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
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KR1020060028339A KR100947824B1 (ko) | 2006-03-29 | 2006-03-29 | 초음파 시스템에서 시그마-델타 아날로그-디지털 변환기를이용한 수신 집속 장치 |
US11/688,527 US20070232917A1 (en) | 2006-03-29 | 2007-03-20 | Digital beamforming apparatus with a sigma-delta a/d converter |
JP2007074609A JP2007260394A (ja) | 2006-03-29 | 2007-03-22 | 超音波システムでシグマ−デルタアナログ−デジタル変換器を用いた受信集束装置 |
EP07005992.8A EP1840564B1 (en) | 2006-03-29 | 2007-03-23 | Digital beamforming apparatus with a sigma-delta A/D converter |
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KR1020060028339A KR100947824B1 (ko) | 2006-03-29 | 2006-03-29 | 초음파 시스템에서 시그마-델타 아날로그-디지털 변환기를이용한 수신 집속 장치 |
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KR20070097724A KR20070097724A (ko) | 2007-10-05 |
KR100947824B1 true KR100947824B1 (ko) | 2010-03-18 |
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KR1020060028339A KR100947824B1 (ko) | 2006-03-29 | 2006-03-29 | 초음파 시스템에서 시그마-델타 아날로그-디지털 변환기를이용한 수신 집속 장치 |
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US (1) | US20070232917A1 (ko) |
EP (1) | EP1840564B1 (ko) |
JP (1) | JP2007260394A (ko) |
KR (1) | KR100947824B1 (ko) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2019203383A1 (ko) * | 2018-04-16 | 2019-10-24 | 삼성메디슨 주식회사 | 초음파 영상 장치 및 초음파 영상 생성 방법 |
Families Citing this family (10)
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JP4825625B2 (ja) * | 2006-09-04 | 2011-11-30 | 株式会社東芝 | 超音波診断装置 |
US8171333B2 (en) * | 2009-07-15 | 2012-05-01 | Texas Instruments Incorporated | Sub-beam forming transmitter circuitry for ultrasound system |
JP5635540B2 (ja) | 2011-10-26 | 2014-12-03 | ジーイー・メディカル・システムズ・グローバル・テクノロジー・カンパニー・エルエルシー | 受信回路、超音波プローブ及び超音波画像表示装置 |
EP3248027B1 (en) * | 2015-01-23 | 2019-11-13 | Dalhousie University | Systems and methods for beamforming using variable sampling |
US11506770B2 (en) * | 2015-12-10 | 2022-11-22 | Koninklijke Philips N.V. | Ultrasound imaging system probe and system, and an imaging method |
JP7041125B6 (ja) * | 2016-09-02 | 2022-05-30 | コーニンクレッカ フィリップス エヌ ヴェ | 低周波低電圧デジタルマイクロビーム形成器を含む超音波プローブ |
US11324484B2 (en) | 2017-06-20 | 2022-05-10 | Bfly Operations, Inc. | Multi-stage trans-impedance amplifier (TIA) for an ultrasound device |
AU2018289337A1 (en) | 2017-06-20 | 2019-12-19 | Butterfly Network, Inc. | Amplifier with built in time gain compensation for ultrasound applications |
US10857567B2 (en) * | 2017-06-20 | 2020-12-08 | Butterfly Network, Inc. | Analog to digital signal conversion in ultrasound device |
US20210167791A1 (en) * | 2019-12-03 | 2021-06-03 | Butterfly Network, Inc. | Methods and apparatuses for operating analog-to-digital converters in an ultrasound device with timing delays |
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2006
- 2006-03-29 KR KR1020060028339A patent/KR100947824B1/ko active IP Right Grant
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2007
- 2007-03-20 US US11/688,527 patent/US20070232917A1/en not_active Abandoned
- 2007-03-22 JP JP2007074609A patent/JP2007260394A/ja active Pending
- 2007-03-23 EP EP07005992.8A patent/EP1840564B1/en not_active Not-in-force
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Cited By (1)
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US20070232917A1 (en) | 2007-10-04 |
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