BE433230A - - Google Patents
Info
- Publication number
- BE433230A BE433230A BE433230DA BE433230A BE 433230 A BE433230 A BE 433230A BE 433230D A BE433230D A BE 433230DA BE 433230 A BE433230 A BE 433230A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
- H03F1/02—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation
- H03F1/04—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in discharge-tube amplifiers
- H03F1/06—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in discharge-tube amplifiers to raise the efficiency of amplifying modulated radio frequency waves; to raise the efficiency of amplifiers acting also as modulators
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03C—MODULATION
- H03C1/00—Amplitude modulation
- H03C1/62—Modulators in which amplitude of carrier component in output is dependent upon strength of modulating signal, e.g. no carrier output when no modulating signal is present
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- 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
- H04B1/44—Transmit/receive switching
- H04B1/46—Transmit/receive switching by voice-frequency signals; by pilot signals
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Amplitude Modulation (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE214301X | 1938-03-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE433230A true BE433230A (ko) |
Family
ID=5817983
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE433230D BE433230A (ko) | 1938-03-19 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US2232080A (ko) |
| BE (1) | BE433230A (ko) |
| CH (1) | CH214301A (ko) |
| FR (1) | FR851465A (ko) |
| NL (1) | NL56601C (ko) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2521052A (en) * | 1946-03-30 | 1950-09-05 | Bendix Aviat Corp | Controlled carrier transmitter |
| US2671849A (en) * | 1950-11-22 | 1954-03-09 | Automatic Elect Lab | Automatic volume control for alternating current |
| BE527481A (ko) * | 1953-05-18 | |||
| DE1054125B (de) * | 1956-02-18 | 1959-04-02 | Siemens Ag | Anordnung zum automatischen Ein- und Ausschalten der Sender einer drahtlosen Fernschreib-Telegrafieverbindung |
| US3397401A (en) * | 1966-05-27 | 1968-08-13 | Hughes Aircraft Co | Voice operated communication system |
| FR2655790B1 (fr) * | 1989-12-08 | 1992-01-24 | Thomson Tubes Electroniques | Tube a grille a rendement ameliore. |
-
0
- BE BE433230D patent/BE433230A/xx unknown
- NL NL56601D patent/NL56601C/xx active
-
1939
- 1939-03-02 CH CH214301D patent/CH214301A/de unknown
- 1939-03-10 FR FR851465D patent/FR851465A/fr not_active Expired
- 1939-03-18 US US262609A patent/US2232080A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| CH214301A (de) | 1941-04-15 |
| US2232080A (en) | 1941-02-18 |
| FR851465A (fr) | 1940-01-09 |
| NL56601C (ko) |