FR925023A - Perfectionnements aux systèmes directifs radioélectriques - Google Patents
Perfectionnements aux systèmes directifs radioélectriquesInfo
- Publication number
- FR925023A FR925023A FR925023DA FR925023A FR 925023 A FR925023 A FR 925023A FR 925023D A FR925023D A FR 925023DA FR 925023 A FR925023 A FR 925023A
- Authority
- FR
- France
- Prior art keywords
- directional systems
- radio directional
- radio
- systems
- directional
- 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
-
- 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)
- Selective Calling Equipment (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US582051A US2412986A (en) | 1945-03-10 | 1945-03-10 | Beacon system |
Publications (1)
Publication Number | Publication Date |
---|---|
FR925023A true FR925023A (fr) | 1947-08-22 |
Family
ID=24327632
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR925023D Expired FR925023A (fr) | 1945-03-10 | 1946-03-09 | Perfectionnements aux systèmes directifs radioélectriques |
Country Status (4)
Country | Link |
---|---|
US (1) | US2412986A (fr) |
ES (1) | ES172833A1 (fr) |
FR (1) | FR925023A (fr) |
GB (1) | GB609191A (fr) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2509230A (en) * | 1946-02-28 | 1950-05-30 | Standard Telephones Cables Ltd | Beacon system |
US2602161A (en) * | 1947-01-25 | 1952-07-01 | Sperry Corp | Modulation system for craft guidance |
US3482247A (en) * | 1968-07-24 | 1969-12-02 | Cubic Ind Corp | Instrument landing system |
-
1945
- 1945-03-10 US US582051A patent/US2412986A/en not_active Expired - Lifetime
-
1946
- 1946-03-08 GB GB7318/46A patent/GB609191A/en not_active Expired
- 1946-03-08 ES ES172833A patent/ES172833A1/es not_active Expired
- 1946-03-09 FR FR925023D patent/FR925023A/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
ES172833A1 (es) | 1946-04-16 |
US2412986A (en) | 1946-12-24 |
GB609191A (en) | 1948-09-27 |
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