NL28082C - - Google Patents
Info
- Publication number
- NL28082C NL28082C NL28082DA NL28082C NL 28082 C NL28082 C NL 28082C NL 28082D A NL28082D A NL 28082DA NL 28082 C NL28082 C NL 28082C
- Authority
- NL
- Netherlands
Links
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
- G01S15/06—Systems determining the position data of a target
- G01S15/08—Systems for measuring distance only
- G01S15/10—Systems for measuring distance only using transmission of interrupted, pulse-modulated waves
- G01S15/101—Particularities of the measurement of distance
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)
- Lighting Device Outwards From Vehicle And Optical Signal (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE340149X | 1929-01-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL28082C true NL28082C (ja�@�@) |
Family
ID=6225191
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL28082D NL28082C (ja�@�@) | 1929-01-17 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US1919015A (ja�@�@) |
| FR (1) | FR688317A (ja�@�@) |
| GB (1) | GB340149A (ja�@�@) |
| NL (1) | NL28082C (ja�@�@) |
-
0
- NL NL28082D patent/NL28082C/xx active
-
1930
- 1930-01-15 GB GB1473/30A patent/GB340149A/en not_active Expired
- 1930-01-16 FR FR688317D patent/FR688317A/fr not_active Expired
- 1930-01-17 US US421443A patent/US1919015A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| FR688317A (fr) | 1930-08-21 |
| US1919015A (en) | 1933-07-18 |
| GB340149A (en) | 1930-12-24 |