BE456412A - - Google Patents
Info
- Publication number
- BE456412A BE456412A BE456412DA BE456412A BE 456412 A BE456412 A BE 456412A BE 456412D A BE456412D A BE 456412DA BE 456412 A BE456412 A BE 456412A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
- H03D3/00—Demodulation of angle-, frequency- or phase- modulated oscillations
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03C—MODULATION
- H03C3/00—Angle modulation
- H03C3/10—Angle modulation by means of variable impedance
- H03C3/12—Angle modulation by means of variable impedance by means of a variable reactive element
- H03C3/18—Angle modulation by means of variable impedance by means of a variable reactive element the element being a current-dependent inductor
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
- H04B1/54—Circuits using the same frequency for two directions of communication
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Amplitude Modulation (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
- Magnetic Treatment Devices (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL242963X | 1943-06-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE456412A true BE456412A (es) |
Family
ID=19780690
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE456412D BE456412A (es) | 1943-06-21 |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US2569309A (es) |
| BE (1) | BE456412A (es) |
| CH (1) | CH242963A (es) |
| DE (1) | DE862315C (es) |
| FR (1) | FR905717A (es) |
| GB (1) | GB620424A (es) |
| NL (1) | NL64980C (es) |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE507449A (es) * | 1950-11-30 | |||
| US2755446A (en) * | 1951-06-30 | 1956-07-17 | Cgs Lab Inc | Variable inductance control method and apparatus |
| US2742613A (en) * | 1951-07-26 | 1956-04-17 | Cgs Lab Inc | Variable time delay system |
| US2762984A (en) * | 1952-06-18 | 1956-09-11 | Du Mont Allen B Lab Inc | Continuously variable pulse delay system |
| US2907957A (en) * | 1952-12-31 | 1959-10-06 | Cgs Lab Inc | Electrically variable delay line |
| US2926311A (en) * | 1955-01-19 | 1960-02-23 | Cgs Lab Inc | Variable frequency signal generator |
| US2786940A (en) * | 1956-01-13 | 1957-03-26 | Nat Union Electric Corp | Superheterodyne receiver with common variable saturating means having tracking provision for tuning inductances |
| US2940055A (en) * | 1956-06-22 | 1960-06-07 | Walter J Brown | Phase modulator and clipper |
| US2938180A (en) * | 1956-10-25 | 1960-05-24 | Witz Gerhard H De | Use of electrically controllable variable inductor for tuning purposes |
| DE1227167B (de) * | 1957-11-27 | 1966-10-20 | Telefunken Patent | Elektronisch steuerbare Verzoegerungsleitung |
| US2946967A (en) * | 1958-01-07 | 1960-07-26 | Daniel S Elders | Delay lines |
| US3002160A (en) * | 1958-01-29 | 1961-09-26 | Gen Electric | Phase modulation system |
| NL243306A (es) * | 1958-09-13 | |||
| DE1276132B (de) * | 1964-07-06 | 1968-08-29 | Siemens Ag | Elektrisches UEbertragungsglied nach Art eines Vierpols mit amplitudenabhaengigem UEbertragungsmass |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1357264A (en) * | 1919-09-27 | 1920-11-02 | American Telephone & Telegraph | Magnetic modulator |
| US2278658A (en) * | 1939-12-06 | 1942-04-07 | Rca Corp | Frequency modulation |
-
0
- BE BE456412D patent/BE456412A/xx unknown
- NL NL64980D patent/NL64980C/xx active
-
1944
- 1944-06-17 DE DEN2254D patent/DE862315C/de not_active Expired
- 1944-06-20 CH CH242963D patent/CH242963A/de unknown
- 1944-07-07 FR FR905717D patent/FR905717A/fr not_active Expired
-
1946
- 1946-07-12 US US683060A patent/US2569309A/en not_active Expired - Lifetime
- 1946-09-30 GB GB29123/46A patent/GB620424A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| NL64980C (es) | |
| DE862315C (de) | 1953-01-08 |
| FR905717A (fr) | 1945-12-12 |
| US2569309A (en) | 1951-09-25 |
| CH242963A (de) | 1946-06-15 |
| GB620424A (en) | 1949-03-24 |