NL50131C - - Google Patents
Info
- Publication number
- NL50131C NL50131C NL50131DA NL50131C NL 50131 C NL50131 C NL 50131C NL 50131D A NL50131D A NL 50131DA NL 50131 C NL50131 C NL 50131C
- Authority
- NL
- Netherlands
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
- G01S3/00—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received
- G01S3/02—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received using radio waves
- G01S3/14—Systems for determining direction or deviation from predetermined direction
- G01S3/143—Systems for determining direction or deviation from predetermined direction by vectorial combination of signals derived from differently oriented antennae
-
- 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
-
- 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
- G01S1/72—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 ultrasonic, sonic or infrasonic waves
-
- 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
- G01S3/00—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received
- G01S3/02—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received using radio waves
- G01S3/14—Systems for determining direction or deviation from predetermined direction
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Radar Systems Or Details Thereof (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB207367X | 1936-11-06 | ||
| GB5412/37A GB490940A (en) | 1936-11-06 | 1937-02-23 | Improvements in or relating to radio direction finding apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL50131C true NL50131C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) |
Family
ID=32071221
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL49017D NL49017C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1936-11-06 | ||
| NL50131D NL50131C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1936-11-06 |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL49017D NL49017C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1936-11-06 |
Country Status (5)
Families Citing this family (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2475412A (en) * | 1949-07-05 | Torcheux | ||
| US2415955A (en) * | 1942-02-28 | 1947-02-18 | Rca Corp | Radio direction finding |
| US2415954A (en) * | 1942-02-28 | 1947-02-18 | Rca Corp | Radio direction finding |
| US2422073A (en) * | 1942-07-30 | 1947-06-10 | Rca Corp | Radio direction finder |
| US2419994A (en) * | 1942-08-01 | 1947-05-06 | Rca Corp | Direction finding |
| US2476977A (en) * | 1944-06-24 | 1949-07-26 | Paul G Hansel | Radio direction finder |
| US2666192A (en) * | 1944-07-27 | 1954-01-12 | Frederick V Hunt | Apparatus for determining the direction of underwater targets |
| US2450014A (en) * | 1944-10-28 | 1948-09-28 | Standard Telephones Cables Ltd | Electronic goniometer for radio direction finders |
| US2524768A (en) * | 1944-12-16 | 1950-10-10 | Standard Telephones Cables Ltd | Radio direction finder |
| US2485642A (en) * | 1945-03-05 | 1949-10-25 | Standard Telephones Cables Ltd | Electronic switching system |
| US2468109A (en) * | 1945-03-19 | 1949-04-26 | Standard Telephones Cables Ltd | Direction finder |
| US2475612A (en) * | 1945-06-27 | 1949-07-12 | Paul G Hansel | Direction finding system |
| US2494553A (en) * | 1945-10-16 | 1950-01-17 | Paul G Hansel | Direction finding system |
| BE478008A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1946-12-12 | |||
| US2883663A (en) * | 1955-03-11 | 1959-04-21 | William J Kessler | Means for direction finding and ranging on atmospherics |
| US3007162A (en) * | 1957-07-23 | 1961-10-31 | Albert C Nolte Sr | Airplane instrument approach and landing system |
| US3099009A (en) * | 1960-02-05 | 1963-07-23 | Collins Radio Co | Automatic direction finder system |
| US7414571B2 (en) * | 2002-08-19 | 2008-08-19 | Q-Track Corporation | Low frequency asset tag tracking system and method |
| US7298314B2 (en) * | 2002-08-19 | 2007-11-20 | Q-Track Corporation | Near field electromagnetic positioning system and method |
| US6963301B2 (en) * | 2002-08-19 | 2005-11-08 | G-Track Corporation | System and method for near-field electromagnetic ranging |
| US7307595B2 (en) * | 2004-12-21 | 2007-12-11 | Q-Track Corporation | Near field location system and method |
| EP2135368A4 (en) * | 2007-03-15 | 2016-04-13 | Compass Auto Tracker Llc | DEVICE AND METHOD FOR A DIRECTIONAL SEARCHER |
| US8774837B2 (en) | 2011-04-30 | 2014-07-08 | John Anthony Wright | Methods, systems and apparatuses of emergency vehicle locating and the disruption thereof |
-
0
- NL NL49017D patent/NL49017C/xx active
- NL NL50131D patent/NL50131C/xx active
-
1936
- 1936-11-06 GB GB30336/36A patent/GB484590A/en not_active Expired
-
1937
- 1937-10-15 US US169198A patent/US2213273A/en not_active Expired - Lifetime
- 1937-10-15 US US169197A patent/US2215781A/en not_active Expired - Lifetime
- 1937-10-26 FR FR828300D patent/FR828300A/fr not_active Expired
- 1937-11-06 CH CH207367D patent/CH207367A/de unknown
-
1938
- 1938-02-23 CH CH223333D patent/CH223333A/de unknown
Also Published As
| Publication number | Publication date |
|---|---|
| US2215781A (en) | 1940-09-24 |
| CH207367A (de) | 1939-10-31 |
| FR828300A (fr) | 1938-05-13 |
| CH223333A (de) | 1942-09-15 |
| GB484590A (en) | 1938-05-06 |
| US2213273A (en) | 1940-09-03 |
| NL49017C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) |