FR2203978A2 - - Google Patents
Info
- Publication number
- FR2203978A2 FR2203978A2 FR7337389A FR7337389A FR2203978A2 FR 2203978 A2 FR2203978 A2 FR 2203978A2 FR 7337389 A FR7337389 A FR 7337389A FR 7337389 A FR7337389 A FR 7337389A FR 2203978 A2 FR2203978 A2 FR 2203978A2
- Authority
- FR
- France
- 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.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q25/00—Antennas or antenna systems providing at least two radiating patterns
-
- 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
- G01S1/02—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
- G01S1/08—Systems for determining direction or position line
- G01S1/14—Systems for determining direction or position line using amplitude comparison of signals transmitted simultaneously from antennas or antenna systems having differently oriented overlapping directivity-characteristics
Landscapes
- Engineering & Computer Science (AREA)
- Remote Sensing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Aviation & Aerospace Engineering (AREA)
- Radar Systems Or Details Thereof (AREA)
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US5445670A | 1970-07-13 | 1970-07-13 | |
| US5451070A | 1970-07-13 | 1970-07-13 | |
| US00299586A US3806935A (en) | 1970-07-13 | 1972-10-20 | Radio navigational aid with separate standard frequency signal |
| US00299468A US3824594A (en) | 1972-10-20 | 1972-10-20 | Apparatus for receiving separate standard frequencies with separate sub-bands |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR2203978A2 true FR2203978A2 (enrdf_load_stackoverflow) | 1974-05-17 |
Family
ID=27489642
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7337389A Pending FR2203978A2 (enrdf_load_stackoverflow) | 1970-07-13 | 1973-10-19 | |
| FR7504806A Pending FR2257912A2 (enrdf_load_stackoverflow) | 1970-07-13 | 1975-02-17 |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7504806A Pending FR2257912A2 (enrdf_load_stackoverflow) | 1970-07-13 | 1975-02-17 |
Country Status (5)
| Country | Link |
|---|---|
| CH (1) | CH561426A5 (enrdf_load_stackoverflow) |
| DE (1) | DE2352219A1 (enrdf_load_stackoverflow) |
| FR (2) | FR2203978A2 (enrdf_load_stackoverflow) |
| GB (1) | GB1399769A (enrdf_load_stackoverflow) |
| NL (1) | NL7314279A (enrdf_load_stackoverflow) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0619667B2 (ja) * | 1986-10-07 | 1994-03-16 | 村田機械株式会社 | 検出装置 |
-
1973
- 1973-10-17 NL NL7314279A patent/NL7314279A/xx not_active Application Discontinuation
- 1973-10-18 GB GB4858973A patent/GB1399769A/en not_active Expired
- 1973-10-18 DE DE19732352219 patent/DE2352219A1/de active Pending
- 1973-10-18 CH CH1473673A patent/CH561426A5/xx not_active IP Right Cessation
- 1973-10-19 FR FR7337389A patent/FR2203978A2/fr active Pending
-
1975
- 1975-02-17 FR FR7504806A patent/FR2257912A2/fr active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| NL7314279A (enrdf_load_stackoverflow) | 1974-04-23 |
| FR2257912A2 (enrdf_load_stackoverflow) | 1975-08-08 |
| GB1399769A (en) | 1975-07-02 |
| DE2352219A1 (de) | 1974-05-02 |
| CH561426A5 (enrdf_load_stackoverflow) | 1975-04-30 |