JPS6310793B2 - - Google Patents
Info
- Publication number
- JPS6310793B2 JPS6310793B2 JP2949981A JP2949981A JPS6310793B2 JP S6310793 B2 JPS6310793 B2 JP S6310793B2 JP 2949981 A JP2949981 A JP 2949981A JP 2949981 A JP2949981 A JP 2949981A JP S6310793 B2 JPS6310793 B2 JP S6310793B2
- Authority
- JP
- Japan
- Prior art keywords
- signal
- time
- circuit
- ultrasonic
- received signal
- 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
- 238000005259 measurement Methods 0.000 claims description 15
- 238000001514 detection method Methods 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 8
- 238000002604 ultrasonography Methods 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 5
- 230000010355 oscillation Effects 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 230000000737 periodic effect Effects 0.000 description 3
- 101100015484 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) GPA1 gene Proteins 0.000 description 1
- 101000764614 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) Translation machinery-associated protein 17 Proteins 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000003252 repetitive effect 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
- 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
- G01S7/523—Details of pulse systems
- G01S7/526—Receivers
- G01S7/529—Gain of receiver varied automatically during pulse-recurrence period
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
- Control Of Amplification And Gain Control (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2949981A JPS57144476A (en) | 1981-03-02 | 1981-03-02 | Signal detecting circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2949981A JPS57144476A (en) | 1981-03-02 | 1981-03-02 | Signal detecting circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57144476A JPS57144476A (en) | 1982-09-07 |
| JPS6310793B2 true JPS6310793B2 (en, 2012) | 1988-03-09 |
Family
ID=12277766
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2949981A Granted JPS57144476A (en) | 1981-03-02 | 1981-03-02 | Signal detecting circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57144476A (en, 2012) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3339984A1 (de) * | 1983-11-04 | 1985-05-23 | Endress U. Hauser Gmbh U. Co, 7867 Maulburg | Schall- bzw. ultraschall-entfernungsmessgeraet |
| JPH0723908B2 (ja) * | 1985-06-13 | 1995-03-15 | 松下電工株式会社 | 超音波距離計 |
| JPH01295190A (ja) * | 1988-05-23 | 1989-11-28 | Furuno Electric Co Ltd | 魚群探知機 |
| JPH07193446A (ja) * | 1993-12-24 | 1995-07-28 | Nec Corp | 予測ゲイン自動切替回路 |
| JP2014204195A (ja) | 2013-04-02 | 2014-10-27 | 富士通株式会社 | 利得制御回路、及び、超音波画像装置 |
-
1981
- 1981-03-02 JP JP2949981A patent/JPS57144476A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57144476A (en) | 1982-09-07 |
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