BE471236A - - Google Patents
Info
- Publication number
- BE471236A BE471236A BE471236DA BE471236A BE 471236 A BE471236 A BE 471236A BE 471236D A BE471236D A BE 471236DA BE 471236 A BE471236 A BE 471236A
- Authority
- BE
- Belgium
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)
- Traffic Control Systems (AREA)
- Radar Systems Or Details Thereof (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US647933A US2572725A (en) | 1946-02-15 | 1946-02-15 | Path-indicating system for mobile craft |
Publications (1)
Publication Number | Publication Date |
---|---|
BE471236A true BE471236A (fr) |
Family
ID=24598819
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BE471236D BE471236A (fr) | 1946-02-15 |
Country Status (3)
Country | Link |
---|---|
US (1) | US2572725A (fr) |
BE (1) | BE471236A (fr) |
FR (1) | FR941451A (fr) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2710914A (en) * | 1951-09-13 | 1955-06-14 | Hazeltine Research Inc | Periodic signal sweep speed control system |
US2741760A (en) * | 1952-06-02 | 1956-04-10 | Gilfillan Bros Inc | System for visually checking alignment of computer-tracking loop circuitry |
WO1983002165A1 (fr) * | 1981-12-16 | 1983-06-23 | Kachwalla, Zain | Systeme indicateur de position |
US4990921A (en) * | 1987-05-01 | 1991-02-05 | Sundstrand Data Control, Inc. | Multi-mode microwave landing system |
GB2276507B (en) * | 1993-03-25 | 1996-02-14 | Port Of Singapore Authority | An alignment system |
FR2894347B1 (fr) * | 2005-12-02 | 2008-02-01 | Thales Sa | Systeme d'atterrissage autonome et automatique pour drones. |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2034520A (en) * | 1932-04-21 | 1936-03-17 | Telefunken Gmbh | Radio receiver arrangement for landing aircraft |
DE712030C (de) * | 1934-03-10 | 1941-10-10 | Telefunken Gmbh | Sendeanordnung zur Leitung von Luftfahrzeugen auf einer Flugstrecke |
US2171293A (en) * | 1935-04-27 | 1939-08-29 | Transoceanic Aerial Control Sy | Radio navigational guide system |
US2132599A (en) * | 1935-12-23 | 1938-10-11 | Baumann Karl | Landing means for aircraft |
US2176469A (en) * | 1936-01-23 | 1939-10-17 | Csf | Steering device responsive to radio signals |
US2252083A (en) * | 1938-04-23 | 1941-08-12 | Rca Corp | Radio traffic control |
US2417032A (en) * | 1939-02-28 | 1947-03-04 | Rca Corp | Electric altimeter |
US2414469A (en) * | 1940-03-08 | 1947-01-21 | Sperry Gyroscope Co Inc | Distance and direction measuring apparatus |
US2405238A (en) * | 1940-04-13 | 1946-08-06 | Rca Corp | Position determining system |
GB546021A (en) * | 1940-11-20 | 1942-06-24 | Standard Telephones Cables Ltd | Improvements in or relating to blind landing systems using electromagnetic waves |
US2396112A (en) * | 1943-09-02 | 1946-03-05 | Curtis Engineering Company | Radio navigation system and method |
BE473247A (fr) * | 1943-09-06 | |||
US2395854A (en) * | 1943-11-08 | 1946-03-05 | Sperry Gyroscope Co Inc | Flight path controller |
BE482468A (fr) * | 1944-05-05 | |||
US2415318A (en) * | 1944-08-15 | 1947-02-04 | Hazelt Ne Res Inc | Wave-signal receiver arrangement |
-
0
- BE BE471236D patent/BE471236A/xx unknown
-
1946
- 1946-02-15 US US647933A patent/US2572725A/en not_active Expired - Lifetime
-
1947
- 1947-02-11 FR FR941451D patent/FR941451A/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
US2572725A (en) | 1951-10-23 |
FR941451A (fr) | 1949-01-12 |