DE2237720A1 - - Google Patents
Info
- Publication number
- DE2237720A1 DE2237720A1 DE19722237720 DE2237720A DE2237720A1 DE 2237720 A1 DE2237720 A1 DE 2237720A1 DE 19722237720 DE19722237720 DE 19722237720 DE 2237720 A DE2237720 A DE 2237720A DE 2237720 A1 DE2237720 A1 DE 2237720A1
- Authority
- DE
- Germany
- 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.)
- Granted
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
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2237720A DE2237720C2 (de) | 1972-08-01 | 1972-08-01 | Elektronische Funkpeilanlage |
| US384333A US3916411A (en) | 1972-08-01 | 1973-07-31 | Electronic direction finding apparatus |
| FR7328915A FR2194973B1 (US07534539-20090519-C00280.png) | 1972-08-01 | 1973-07-31 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2237720A DE2237720C2 (de) | 1972-08-01 | 1972-08-01 | Elektronische Funkpeilanlage |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| DE2237720A1 true DE2237720A1 (US07534539-20090519-C00280.png) | 1974-02-07 |
| DE2237720B1 DE2237720B1 (de) | 1974-02-07 |
| DE2237720C2 DE2237720C2 (de) | 1974-08-29 |
Family
ID=5852301
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE2237720A Expired DE2237720C2 (de) | 1972-08-01 | 1972-08-01 | Elektronische Funkpeilanlage |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US3916411A (US07534539-20090519-C00280.png) |
| DE (1) | DE2237720C2 (US07534539-20090519-C00280.png) |
| FR (1) | FR2194973B1 (US07534539-20090519-C00280.png) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4025924A (en) * | 1975-09-10 | 1977-05-24 | The United States Of America As Represented By The Field Operations Bureau Of The Federal Communications Commission | Mobile direction comparator |
| JPS5852186B2 (ja) * | 1979-03-12 | 1983-11-21 | 太洋無線株式会社 | 方位測定装置 |
| JPS597946B2 (ja) * | 1979-03-19 | 1984-02-21 | 太洋無線株式会社 | 方向探知機 |
| DE3126867A1 (de) * | 1981-07-08 | 1983-01-27 | C. Plath Gmbh Nautisch-Elektronische Technik, 2000 Hamburg | Einkanal-peilverfahren mit selbsttaetiger korrektur von peilfehlern |
| JPS62185180A (ja) * | 1986-02-12 | 1987-08-13 | Taiyo Musen Kk | 方向探知機 |
| US4724442A (en) * | 1986-05-29 | 1988-02-09 | E-Systems, Inc. | Method and apparatus for loop direction finding with no ambiguity |
| US5003316A (en) * | 1989-04-24 | 1991-03-26 | E-Systems, Inc. | Single null miniature direction finder |
| FR2791020A1 (fr) * | 1999-03-18 | 2000-09-22 | Jean Marie Charles Brousse | Dispositif permettant la detection de tous types de vehicules equipes aux gpl et la protection des reservoirs contre le feu et le vandalisme |
| WO2017149697A1 (ja) * | 2016-03-02 | 2017-09-08 | 三菱電機株式会社 | アンテナ装置及びアンテナ励振方法 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2943323A (en) * | 1957-09-03 | 1960-06-28 | Internat Res & Dev Corp | Automatic direction finding device for aircraft |
| GB906468A (en) * | 1960-05-18 | 1962-09-19 | Marconi Wireless Telegraph Co | Improvements in or relating to radio direction finders |
| GB1233538A (US07534539-20090519-C00280.png) * | 1967-06-20 | 1971-05-26 | ||
| FR2012381A1 (US07534539-20090519-C00280.png) * | 1968-07-05 | 1970-03-20 | Telefunken Gmbh |
-
1972
- 1972-08-01 DE DE2237720A patent/DE2237720C2/de not_active Expired
-
1973
- 1973-07-31 FR FR7328915A patent/FR2194973B1/fr not_active Expired
- 1973-07-31 US US384333A patent/US3916411A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| FR2194973A1 (US07534539-20090519-C00280.png) | 1974-03-01 |
| US3916411A (en) | 1975-10-28 |
| FR2194973B1 (US07534539-20090519-C00280.png) | 1978-09-29 |
| DE2237720B1 (de) | 1974-02-07 |
| DE2237720C2 (de) | 1974-08-29 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| E77 | Valid patent as to the heymanns-index 1977 | ||
| 8339 | Ceased/non-payment of the annual fee |