JPH0558146B2 - - Google Patents
Info
- Publication number
- JPH0558146B2 JPH0558146B2 JP21486384A JP21486384A JPH0558146B2 JP H0558146 B2 JPH0558146 B2 JP H0558146B2 JP 21486384 A JP21486384 A JP 21486384A JP 21486384 A JP21486384 A JP 21486384A JP H0558146 B2 JPH0558146 B2 JP H0558146B2
- Authority
- JP
- Japan
- Prior art keywords
- low
- output
- circuit
- frequency
- pass filter
- 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 - Lifetime
Links
- 230000010355 oscillation Effects 0.000 claims description 38
- 230000005540 biological transmission Effects 0.000 claims description 9
- 238000001514 detection method Methods 0.000 claims description 8
- 230000000903 blocking effect Effects 0.000 claims 1
- 238000002604 ultrasonography Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000003321 amplification Effects 0.000 description 3
- 238000010304 firing Methods 0.000 description 3
- 238000003199 nucleic acid amplification method Methods 0.000 description 3
- 238000013459 approach Methods 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 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
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21486384A JPS6193970A (ja) | 1984-10-13 | 1984-10-13 | 移動物体の移動方向検出装置 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21486384A JPS6193970A (ja) | 1984-10-13 | 1984-10-13 | 移動物体の移動方向検出装置 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6193970A JPS6193970A (ja) | 1986-05-12 |
| JPH0558146B2 true JPH0558146B2 (zh) | 1993-08-25 |
Family
ID=16662802
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21486384A Granted JPS6193970A (ja) | 1984-10-13 | 1984-10-13 | 移動物体の移動方向検出装置 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6193970A (zh) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4936162B2 (ja) * | 2006-12-08 | 2012-05-23 | パナソニック株式会社 | 移動物体検出装置 |
| WO2008062568A1 (fr) | 2006-11-20 | 2008-05-29 | Panasonic Electric Works Co., Ltd. | Détecteur d'objets en mouvement |
| JP2013160634A (ja) * | 2012-02-06 | 2013-08-19 | Denso Corp | 超音波センサ |
-
1984
- 1984-10-13 JP JP21486384A patent/JPS6193970A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6193970A (ja) | 1986-05-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |