IT500059A - - Google Patents
Info
- Publication number
- IT500059A IT500059A IT500059DA IT500059A IT 500059 A IT500059 A IT 500059A IT 500059D A IT500059D A IT 500059DA IT 500059 A IT500059 A IT 500059A
- Authority
- IT
- Italy
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03C—MODULATION
- H03C7/00—Modulating electromagnetic waves
- H03C7/02—Modulating electromagnetic waves in transmission lines, waveguides, cavity resonators or radiation fields of antennas
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Electromagnetism (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
- Transmitters (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US255766A US2660709A (en) | 1951-11-10 | 1951-11-10 | Mechanical modulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| IT500059A true IT500059A (xx) | 1900-01-01 |
Family
ID=22969760
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IT500059D IT500059A (xx) | 1951-11-10 |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US2660709A (xx) |
| BE (1) | BE515436A (xx) |
| CH (1) | CH309360A (xx) |
| DE (1) | DE939881C (xx) |
| FR (1) | FR1066424A (xx) |
| GB (1) | GB707520A (xx) |
| IT (1) | IT500059A (xx) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2840700A (en) * | 1954-06-30 | 1958-06-24 | Jewel D Browder | Electrode very low frequency radio receiving antenna for submarines |
| US2857553A (en) * | 1956-02-23 | 1958-10-21 | Gordon Van B King | Spiral sweep generator |
| FR1458197A (fr) * | 1965-06-02 | 1966-03-04 | Montages Electr Atel | Modulateur mécanique et applications |
| US5839062A (en) * | 1994-03-18 | 1998-11-17 | The Regents Of The University Of California | Mixing, modulation and demodulation via electromechanical resonators |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2228692A (en) * | 1938-10-14 | 1941-01-14 | Washington Inst Of Technology | Load stabilizing means for modulation systems |
| BE456046A (xx) * | 1939-08-03 | |||
| US2368693A (en) * | 1942-07-04 | 1945-02-06 | Standard Telephones Cables Ltd | Modulation system |
| FR954971A (xx) * | 1943-11-06 | 1950-01-06 |
-
0
- BE BE515436D patent/BE515436A/xx unknown
- IT IT500059D patent/IT500059A/it unknown
-
1951
- 1951-11-10 US US255766A patent/US2660709A/en not_active Expired - Lifetime
-
1952
- 1952-10-10 GB GB25438/52A patent/GB707520A/en not_active Expired
- 1952-11-07 DE DEI6543A patent/DE939881C/de not_active Expired
- 1952-11-10 FR FR1066424D patent/FR1066424A/fr not_active Expired
- 1952-11-10 CH CH309360D patent/CH309360A/de unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DE939881C (de) | 1956-03-08 |
| FR1066424A (fr) | 1954-06-04 |
| CH309360A (de) | 1955-08-31 |
| GB707520A (en) | 1954-04-21 |
| BE515436A (xx) | 1900-01-01 |
| US2660709A (en) | 1953-11-24 |