JPH0319510B2 - - Google Patents
Info
- Publication number
- JPH0319510B2 JPH0319510B2 JP1863585A JP1863585A JPH0319510B2 JP H0319510 B2 JPH0319510 B2 JP H0319510B2 JP 1863585 A JP1863585 A JP 1863585A JP 1863585 A JP1863585 A JP 1863585A JP H0319510 B2 JPH0319510 B2 JP H0319510B2
- Authority
- JP
- Japan
- Prior art keywords
- signal
- complex
- output
- doppler
- frequency
- 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
Links
- 238000006243 chemical reaction Methods 0.000 claims description 12
- 238000001514 detection method Methods 0.000 claims description 7
- 230000003111 delayed effect Effects 0.000 claims description 2
- 230000000737 periodic effect Effects 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 description 6
- 239000000523 sample Substances 0.000 description 5
- 238000002604 ultrasonography Methods 0.000 description 5
- 238000001228 spectrum Methods 0.000 description 4
- 230000001360 synchronised effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000002592 echocardiography Methods 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 235000014366 other mixer Nutrition 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
Classifications
-
- 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
- G01S15/02—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems using reflection of acoustic waves
- G01S15/50—Systems of measurement, based on relative movement of the target
- G01S15/58—Velocity or trajectory determination systems; Sense-of-movement determination systems
- G01S15/582—Velocity or trajectory determination systems; Sense-of-movement determination systems using transmission of interrupted pulse-modulated waves and based upon the Doppler effect resulting from movement of targets
-
- 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
- G01S15/02—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems using reflection of acoustic waves
- G01S15/50—Systems of measurement, based on relative movement of the target
- G01S15/58—Velocity or trajectory determination systems; Sense-of-movement determination systems
- G01S15/582—Velocity or trajectory determination systems; Sense-of-movement determination systems using transmission of interrupted pulse-modulated waves and based upon the Doppler effect resulting from movement of targets
- G01S15/584—Velocity or trajectory determination systems; Sense-of-movement determination systems using transmission of interrupted pulse-modulated waves and based upon the Doppler effect resulting from movement of targets with measures taken for suppressing velocity ambiguities, i.e. anti-aliasing
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Acoustics & Sound (AREA)
- Computer Networks & Wireless Communication (AREA)
- General Physics & Mathematics (AREA)
- Ultra Sonic Daignosis Equipment (AREA)
- Radar Systems Or Details Thereof (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1863585A JPS61178680A (ja) | 1985-02-04 | 1985-02-04 | ドプラ信号の周波数変換装置 |
| US06/746,998 US4780837A (en) | 1984-06-23 | 1985-06-19 | Doppler signal frequency converter |
| CA000484677A CA1246732A (en) | 1984-06-23 | 1985-06-20 | Doppler signal frequency converter |
| EP85107684A EP0166392B1 (en) | 1984-06-23 | 1985-06-21 | Doppler signal frequency converter |
| DE8585107684T DE3586016D1 (de) | 1984-06-23 | 1985-06-21 | Frequenzumsetzer eines dopplersignals. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1863585A JPS61178680A (ja) | 1985-02-04 | 1985-02-04 | ドプラ信号の周波数変換装置 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61178680A JPS61178680A (ja) | 1986-08-11 |
| JPH0319510B2 true JPH0319510B2 (sk) | 1991-03-15 |
Family
ID=11977067
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1863585A Granted JPS61178680A (ja) | 1984-06-23 | 1985-02-04 | ドプラ信号の周波数変換装置 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61178680A (sk) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009261539A (ja) * | 2008-04-24 | 2009-11-12 | Aloka Co Ltd | 超音波診断装置 |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6415033A (en) * | 1987-07-09 | 1989-01-19 | Aloka Co Ltd | Ultrasonic doppler diagnostic apparatus |
| JP3393183B2 (ja) * | 1999-02-12 | 2003-04-07 | 三菱電機株式会社 | ドップラ速度検出装置及び検出方法 |
| WO2001085031A1 (fr) * | 2000-05-09 | 2001-11-15 | Hitachi Medical Corporation | Appareil de diagnostic par ultrasons |
-
1985
- 1985-02-04 JP JP1863585A patent/JPS61178680A/ja active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009261539A (ja) * | 2008-04-24 | 2009-11-12 | Aloka Co Ltd | 超音波診断装置 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61178680A (ja) | 1986-08-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4780837A (en) | Doppler signal frequency converter | |
| JPS6244494B2 (sk) | ||
| US4799490A (en) | Doppler ultrasonic diagnostic apparatus | |
| JPH01110351A (ja) | 超音波ドプラ診断装置 | |
| US3953823A (en) | Velocity measurement apparatus using pulsed ultrasonic waves | |
| CA1267968A (en) | Ultrasonic device for measuring acceleration of moving reflective member | |
| JPS63317137A (ja) | 超音波血流イメ−ジング装置 | |
| CA1246732A (en) | Doppler signal frequency converter | |
| JPH0319510B2 (sk) | ||
| JP2553635B2 (ja) | 超音波ドップラ血流計 | |
| JPH084589B2 (ja) | 超音波ドプラ診断装置 | |
| JPH0323050B2 (sk) | ||
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| JPH0345797B2 (sk) | ||
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| JPS61265591A (ja) | ドプラ信号の周波数変換装置 | |
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| JPH0224141B2 (sk) | ||
| JPH0222658B2 (sk) | ||
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| JPH0199537A (ja) | 超音波診断装置 | |
| JPH01204653A (ja) | 超音波ドプラ装置 | |
| JPH01190340A (ja) | 超音波ドップラ血流計及び血流測定法 | |
| JPH0679602B2 (ja) | 超音波診断装置 | |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |