FR882607A - - Google Patents
Info
- Publication number
- FR882607A FR882607A FR882607DA FR882607A FR 882607 A FR882607 A FR 882607A FR 882607D A FR882607D A FR 882607DA FR 882607 A FR882607 A FR 882607A
- 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.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
- H03J3/00—Continuous tuning
- H03J3/24—Continuous tuning of more than one resonant circuit simultaneously, the circuits being tuned to substantially the same frequency, e.g. for single-knob tuning
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D3/00—Control of position or direction
- G05D3/12—Control of position or direction using feedback
- G05D3/14—Control of position or direction using feedback using an analogue comparing device
- G05D3/1472—Control of position or direction using feedback using an analogue comparing device with potentiometer
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/08—Means for collapsing antennas or parts thereof
- H01Q1/10—Telescopic elements
- H01Q1/103—Latching means; ensuring extension or retraction thereof
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Details Of Aerials (AREA)
- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US321381A US2283524A (en) | 1940-02-29 | 1940-02-29 | Adjustable antenna device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR882607A true FR882607A (lt) | 1943-06-25 |
Family
ID=23250379
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR882607D Expired FR882607A (lt) | 1940-02-29 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US2283524A (lt) |
| BE (1) | BE442118A (lt) |
| FR (1) | FR882607A (lt) |
| GB (2) | GB548965A (lt) |
| NL (1) | NL62302C (lt) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2061538A1 (lt) * | 1969-05-07 | 1971-06-25 | Commissariat Energie Atomique | |
| FR2523232A1 (fr) * | 1982-03-09 | 1983-09-16 | Thomson Csf | Colonne telescopique a tubes cylindriques |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2415427A (en) * | 1942-06-22 | 1947-02-11 | Electronic Lab Inc | Radio-frequency transmitter |
| US2484817A (en) * | 1942-12-15 | 1949-10-18 | Armond James Keller De | Antenna for aircraft |
| US2472904A (en) * | 1943-12-24 | 1949-06-14 | Firm Autophon Ag | Transmitting antenna with automatic tuning, particularly for aircraft wireless |
| US2430173A (en) * | 1944-10-17 | 1947-11-04 | Richard R Stoddart | Remotely controlled antenna tuning apparatus |
| US2492989A (en) * | 1946-02-09 | 1950-01-03 | Farnsworth Res Corp | Directive ultra high frequency antenna |
| US2569810A (en) * | 1949-04-02 | 1951-10-02 | Teleflex Antenna Co | Folded dipole antenna |
| US2574733A (en) * | 1949-04-16 | 1951-11-13 | Tele Tone Radio Corp | Tape antenna system |
| US3268898A (en) * | 1962-12-12 | 1966-08-23 | Avco Corp | Demountable variable length antenna |
| GB2161026A (en) * | 1984-06-29 | 1986-01-02 | Racal Antennas Limited | Antenna arrangements |
| JPH09205384A (ja) * | 1996-01-29 | 1997-08-05 | Nec Corp | 携帯無線機 |
-
0
- FR FR882607D patent/FR882607A/fr not_active Expired
- BE BE442118D patent/BE442118A/xx unknown
- NL NL62302D patent/NL62302C/xx active
-
1940
- 1940-02-29 US US321381A patent/US2283524A/en not_active Expired - Lifetime
-
1941
- 1941-02-28 GB GB10680/42A patent/GB548965A/en not_active Expired
- 1941-02-28 GB GB2757/41A patent/GB548202A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2061538A1 (lt) * | 1969-05-07 | 1971-06-25 | Commissariat Energie Atomique | |
| FR2523232A1 (fr) * | 1982-03-09 | 1983-09-16 | Thomson Csf | Colonne telescopique a tubes cylindriques |
| US4561798A (en) * | 1982-03-09 | 1985-12-31 | Thomson Csf | Telescopic cylindrical tube column |
Also Published As
| Publication number | Publication date |
|---|---|
| NL62302C (lt) | |
| GB548202A (en) | 1942-09-30 |
| GB548965A (en) | 1942-10-30 |
| BE442118A (lt) | |
| US2283524A (en) | 1942-05-19 |