NL2851C - - Google Patents
Info
- Publication number
- NL2851C NL2851C NL2851DA NL2851C NL 2851 C NL2851 C NL 2851C NL 2851D A NL2851D A NL 2851DA NL 2851 C NL2851 C NL 2851C
- 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
- G01S3/00—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received
- G01S3/02—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received using radio waves
- G01S3/04—Details
- G01S3/06—Means for increasing effective directivity, e.g. by combining signals having differently oriented directivity characteristics or by sharpening the envelope waveform of the signal derived from a rotating or oscillating beam antenna
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB191505783T | 1915-04-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL2851C true NL2851C (xx) |
Family
ID=32674520
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL2851D NL2851C (xx) | 1915-04-17 |
Country Status (3)
| Country | Link |
|---|---|
| FR (1) | FR491732A (xx) |
| GB (1) | GB191505783A (xx) |
| NL (1) | NL2851C (xx) |
-
0
- NL NL2851D patent/NL2851C/xx active
-
1915
- 1915-04-17 GB GB191505783D patent/GB191505783A/en not_active Expired
-
1916
- 1916-02-21 FR FR491732A patent/FR491732A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR491732A (fr) | 1919-06-16 |
| GB191505783A (en) | 1916-04-13 |