BE525648A - - Google Patents
Info
- Publication number
- BE525648A BE525648A BE525648DA BE525648A BE 525648 A BE525648 A BE 525648A BE 525648D A BE525648D A BE 525648DA BE 525648 A BE525648 A BE 525648A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q25/00—Antennas or antenna systems providing at least two radiating patterns
-
- 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
- G01S1/02—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 radio 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)
- Variable-Direction Aerials And Aerial Arrays (AREA)
- Details Of Aerials (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US331090A US2771603A (en) | 1953-01-13 | 1953-01-13 | Instrument landing systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE525648A true BE525648A (fi) | 1956-06-08 |
Family
ID=23292587
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE525648D BE525648A (fi) | 1953-01-13 | 1954-01-12 |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US2771603A (fi) |
| BE (1) | BE525648A (fi) |
| FR (2) | FR1094041A (fi) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3048842A (en) * | 1959-01-08 | 1962-08-07 | Itt | Instrument landing system |
| US3325812A (en) * | 1965-05-13 | 1967-06-13 | Henry H Butts | Capture effect glide slope system |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2379442A (en) * | 1942-05-11 | 1945-07-03 | Fed Telephone & Radio Corp | Instrument landing guide system |
| US2406876A (en) * | 1942-05-29 | 1946-09-03 | Standard Telephones Cables Ltd | Instrument navigation system |
-
1953
- 1953-01-13 US US331090A patent/US2771603A/en not_active Expired - Lifetime
- 1953-11-19 FR FR1094041D patent/FR1094041A/fr not_active Expired
-
1954
- 1954-01-12 BE BE525648D patent/BE525648A/xx unknown
- 1954-01-13 FR FR65444D patent/FR65444E/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR65444E (fr) | 1956-02-20 |
| FR1094041A (fr) | 1955-05-11 |
| US2771603A (en) | 1956-11-20 |