FR1037594A - Radio lighthouse - Google Patents
Radio lighthouseInfo
- Publication number
- FR1037594A FR1037594A FR1037594DA FR1037594A FR 1037594 A FR1037594 A FR 1037594A FR 1037594D A FR1037594D A FR 1037594DA FR 1037594 A FR1037594 A FR 1037594A
- Authority
- FR
- France
- Prior art keywords
- radio lighthouse
- lighthouse
- radio
- 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
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)
- Toys (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE686886X | 1950-04-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR1037594A true FR1037594A (en) | 1953-09-21 |
Family
ID=20315074
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR1037594D Expired FR1037594A (en) | 1950-04-18 | 1951-02-22 | Radio lighthouse |
Country Status (3)
Country | Link |
---|---|
DE (1) | DE851367C (en) |
FR (1) | FR1037594A (en) |
GB (1) | GB686886A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3095566A (en) * | 1958-08-08 | 1963-06-25 | Dethloff Jurgen | Method and apparatus for preventing collisions between vehicles |
-
1951
- 1951-02-20 DE DES21939A patent/DE851367C/en not_active Expired
- 1951-02-22 FR FR1037594D patent/FR1037594A/en not_active Expired
- 1951-04-09 GB GB8174/51A patent/GB686886A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB686886A (en) | 1953-02-04 |
DE851367C (en) | 1952-10-02 |
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