DE3783484D1 - Ultraschallsystem. - Google Patents
Ultraschallsystem.Info
- Publication number
- DE3783484D1 DE3783484D1 DE8787301943T DE3783484T DE3783484D1 DE 3783484 D1 DE3783484 D1 DE 3783484D1 DE 8787301943 T DE8787301943 T DE 8787301943T DE 3783484 T DE3783484 T DE 3783484T DE 3783484 D1 DE3783484 D1 DE 3783484D1
- Authority
- DE
- Germany
- Prior art keywords
- ultrasonic system
- ultrasonic
- 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 - Fee Related
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
- G10K11/34—Sound-focusing or directing, e.g. scanning using electrical steering of transducer arrays, e.g. beam steering
- G10K11/341—Circuits therefor
- G10K11/346—Circuits therefor using phase variation
-
- 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
- G01S7/5205—Means for monitoring or calibrating
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/837,486 US4700573A (en) | 1986-03-07 | 1986-03-07 | Method to improve accuracy in delay lines |
Publications (2)
Publication Number | Publication Date |
---|---|
DE3783484D1 true DE3783484D1 (de) | 1993-02-25 |
DE3783484T2 DE3783484T2 (de) | 1993-07-22 |
Family
ID=25274588
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE8787301943T Expired - Fee Related DE3783484T2 (de) | 1986-03-07 | 1987-03-06 | Ultraschallsystem. |
Country Status (4)
Country | Link |
---|---|
US (1) | US4700573A (de) |
EP (1) | EP0237286B1 (de) |
JP (1) | JP2528304B2 (de) |
DE (1) | DE3783484T2 (de) |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3616498A1 (de) * | 1986-05-16 | 1987-11-19 | Siemens Ag | Verfahren und vorrichtung zur digitalen verzoegerung von ultraschallsignalen im empfangsfall |
IL86347A (en) * | 1987-05-21 | 1991-12-15 | Hughes Aircraft Co | Delay quantization technique to reduce steering errors in digital beamformers |
US4852577A (en) * | 1988-04-07 | 1989-08-01 | The United States Of America As Represented By The Department Of Health And Human Services | High speed adaptive ultrasonic phased array imaging system |
US4893284A (en) * | 1988-05-27 | 1990-01-09 | General Electric Company | Calibration of phased array ultrasound probe |
FR2652654A1 (fr) * | 1989-09-29 | 1991-04-05 | Philips Electronique Lab | Echographe ultrasonore utilisant un dispositif numerique de formation de voies en reception. |
US5271276A (en) * | 1990-11-28 | 1993-12-21 | Hitachi, Ltd. | Phase regulating apparatus of ultrasonic measuring devices |
JPH0595951A (ja) * | 1991-03-08 | 1993-04-20 | Fujitsu Ltd | 超音波影像装置 |
US5235983A (en) * | 1991-03-08 | 1993-08-17 | Fujitsu Limited | Ultrasonic imaging apparatus |
US5331964A (en) * | 1993-05-14 | 1994-07-26 | Duke University | Ultrasonic phased array imaging system with high speed adaptive processing using selected elements |
US5910115A (en) * | 1997-09-22 | 1999-06-08 | General Electric Company | Method and apparatus for coherence filtering of ultrasound images |
BRPI0509265A (pt) * | 2004-03-26 | 2007-09-04 | Aslam Khan | dispositivo de tratamento de impulso cervical superior e espinhal |
US7421464B2 (en) * | 2004-09-30 | 2008-09-02 | Motorola, Inc. | System and method for introducing dither for reducing spurs in digital-to-time converter direct digital synthesis |
US8845561B2 (en) * | 2005-03-08 | 2014-09-30 | Aslam Khan | Non-invasive method of spinal intervention and use of devices effective for spinal intervention |
US7332983B2 (en) | 2005-10-31 | 2008-02-19 | Hewlett-Packard Development Company, L.P. | Tunable delay line using selectively connected grounding means |
TWI456240B (zh) | 2012-11-12 | 2014-10-11 | Ind Tech Res Inst | 超音波發射電路及其時間延遲校正方法 |
US10613205B2 (en) | 2014-10-06 | 2020-04-07 | Analog Devices, Inc. | Systems and methods for ultrasound beamforming |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4140022B1 (en) * | 1977-12-20 | 1995-05-16 | Hewlett Packard Co | Acoustic imaging apparatus |
US4127034A (en) * | 1977-12-23 | 1978-11-28 | General Electric Company | Digital rectilinear ultrasonic imaging system |
AU536017B2 (en) * | 1979-02-20 | 1984-04-12 | Commonwealth Of Australia, The | Ultrasonic linear array beamforming method and apparatus |
AU539425B2 (en) * | 1982-02-24 | 1984-09-27 | Tokyo Shibaura Denki Kabushiki Kaisha | Ultrasonic scanning array - focussing in two directions |
US4446740A (en) * | 1982-03-09 | 1984-05-08 | Sri International | Frequency controlled hybrid ultrasonic imaging arrays |
GB2137752A (en) * | 1982-09-29 | 1984-10-10 | Stanford Res Inst Int | Ultrasonic imaging system with cross correlation |
-
1986
- 1986-03-07 US US06/837,486 patent/US4700573A/en not_active Expired - Fee Related
-
1987
- 1987-03-05 JP JP62051811A patent/JP2528304B2/ja not_active Expired - Lifetime
- 1987-03-06 EP EP87301943A patent/EP0237286B1/de not_active Expired - Lifetime
- 1987-03-06 DE DE8787301943T patent/DE3783484T2/de not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JPS62207984A (ja) | 1987-09-12 |
EP0237286B1 (de) | 1993-01-13 |
US4700573A (en) | 1987-10-20 |
EP0237286A3 (en) | 1989-06-14 |
EP0237286A2 (de) | 1987-09-16 |
JP2528304B2 (ja) | 1996-08-28 |
DE3783484T2 (de) | 1993-07-22 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |