BE478022A - - Google Patents
Info
- Publication number
- BE478022A BE478022A BE478022DA BE478022A BE 478022 A BE478022 A BE 478022A BE 478022D A BE478022D A BE 478022DA BE 478022 A BE478022 A BE 478022A
- 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)
- Arrangements For Transmission Of Measured Signals (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB7410/39A GB526055A (en) | 1939-03-07 | 1939-03-07 | Improvements in course indicators for radio direction systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE478022A true BE478022A (US08197722-20120612-C00042.png) |
Family
ID=9832592
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE478022D BE478022A (US08197722-20120612-C00042.png) | 1939-03-07 |
Country Status (5)
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL59195C (US08197722-20120612-C00042.png) * | 1939-03-07 | |||
| US2793363A (en) * | 1953-03-30 | 1957-05-21 | Rca Corp | Instrument landing system receiver apparatus |
| US3020478A (en) * | 1957-07-12 | 1962-02-06 | Itt | Phase measuring device |
| US3032715A (en) * | 1959-01-02 | 1962-05-01 | Collins Radio Co | Means for measuring rate of change of frequency |
| US3257510A (en) * | 1962-10-15 | 1966-06-21 | Industrial Res Prod Inc | Feedback control apparatus |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1923920A (en) * | 1931-07-06 | 1933-08-22 | Us Government | Course shift-indicator for the double-modulation type radiobeacons |
| NL59195C (US08197722-20120612-C00042.png) * | 1939-03-07 |
-
0
- NL NL59195D patent/NL59195C/xx active
- BE BE478022D patent/BE478022A/xx unknown
-
1939
- 1939-03-07 GB GB7410/39A patent/GB526055A/en not_active Expired
-
1940
- 1940-02-22 FR FR863522D patent/FR863522A/fr not_active Expired
-
1947
- 1947-01-25 US US724317A patent/US2553558A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| GB526055A (en) | 1940-09-10 |
| US2553558A (en) | 1951-05-22 |
| FR863522A (fr) | 1941-04-03 |
| NL59195C (US08197722-20120612-C00042.png) |
