FR1025043A - Circuits perfectionnés pour la mesure des distances par échos - Google Patents
Circuits perfectionnés pour la mesure des distances par échosInfo
- Publication number
- FR1025043A FR1025043A FR1025043DA FR1025043A FR 1025043 A FR1025043 A FR 1025043A FR 1025043D A FR1025043D A FR 1025043DA FR 1025043 A FR1025043 A FR 1025043A
- Authority
- FR
- France
- Prior art keywords
- echoes
- distance measurement
- advanced circuits
- advanced
- circuits
- 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
- 238000002592 echocardiography Methods 0.000 title 1
- 238000005259 measurement Methods 0.000 title 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
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
- G01S7/03—Details of HF subsystems specially adapted therefor, e.g. common to transmitter and receiver
- G01S7/034—Duplexers
-
- 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
- G01S1/00—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith
- G01S1/72—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith using ultrasonic, sonic or infrasonic waves
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)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US682723XA | 1949-08-24 | 1949-08-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR1025043A true FR1025043A (fr) | 1953-04-09 |
Family
ID=22081515
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR1025043D Expired FR1025043A (fr) | 1949-08-24 | 1950-08-23 | Circuits perfectionnés pour la mesure des distances par échos |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE497725A (enrdf_load_stackoverflow) |
| FR (1) | FR1025043A (enrdf_load_stackoverflow) |
| GB (1) | GB682723A (enrdf_load_stackoverflow) |
-
0
- BE BE497725D patent/BE497725A/xx unknown
-
1950
- 1950-08-08 GB GB19732/50A patent/GB682723A/en not_active Expired
- 1950-08-23 FR FR1025043D patent/FR1025043A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB682723A (en) | 1952-11-12 |
| BE497725A (enrdf_load_stackoverflow) |
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