BE498272A - - Google Patents
Info
- Publication number
- BE498272A BE498272A BE498272DA BE498272A BE 498272 A BE498272 A BE 498272A BE 498272D A BE498272D A BE 498272DA BE 498272 A BE498272 A BE 498272A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03C—MODULATION
- H03C3/00—Angle modulation
- H03C3/10—Angle modulation by means of variable impedance
- H03C3/24—Angle modulation by means of variable impedance by means of a variable resistive element, e.g. tube
- H03C3/26—Angle modulation by means of variable impedance by means of a variable resistive element, e.g. tube comprising two elements controlled in push-pull by modulating signal
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03C—MODULATION
- H03C1/00—Amplitude modulation
- H03C1/50—Amplitude modulation by converting angle modulation to amplitude modulation
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Amplitude Modulation (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US117360A US2614246A (en) | 1949-09-23 | 1949-09-23 | Modulation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE498272A true BE498272A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) |
Family
ID=22372475
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE498272D BE498272A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1949-09-23 |
Country Status (7)
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2170029A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1972-01-31 | 1973-09-14 | Western Electric Co |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3119899A (en) * | 1950-06-22 | 1964-01-28 | Rca Corp | Multiplex systems |
| US2903652A (en) * | 1952-03-11 | 1959-09-08 | Itt | Ultra-high frequency amplitude modulator |
| US2772398A (en) * | 1953-09-17 | 1956-11-27 | Hoffman Electronics Corp | Simplified circuits for producing amplitude modulation |
| US2901599A (en) * | 1954-07-16 | 1959-08-25 | Rca Corp | Amplitude-modulated radio transmitter combining two constant amplitude phase modulated signals |
| US2924791A (en) * | 1957-02-25 | 1960-02-09 | Rca Corp | Modulation system for transmitters |
| DE1125973B (de) * | 1959-02-25 | 1962-03-22 | Sennheiser Electronic | Schaltungsanordnung fuer einen elektromechanischen Relaiswandler in Hochfrequenzschaltung, z.B. Kondensatormikrofon |
| US3170127A (en) * | 1961-04-21 | 1965-02-16 | Philco Corp | Amplitude modulation system |
| USB351737I5 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1966-05-02 | |||
| US4090147A (en) * | 1977-07-20 | 1978-05-16 | Bell Telephone Laboratories, Incorporated | Interferometric amplifier |
| US4259744A (en) * | 1979-08-27 | 1981-03-31 | The United States Of America As Represented By The Secretary Of The Navy | Signal generator |
| US4835493A (en) * | 1987-10-19 | 1989-05-30 | Hughes Aircraft Company | Very wide bandwidth linear amplitude modulation of RF signal by vector summation |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1673002A (en) * | 1923-02-23 | 1928-06-12 | Western Electric Co | Control of electric waves |
| GB472214A (en) * | 1936-09-17 | 1937-09-20 | Marconi Wireless Telegraph Co | Improvements in or relating to modulated carrier wave systems |
-
0
- NL NL6818199.A patent/NL156183B/xx unknown
- BE BE498272D patent/BE498272A/xx unknown
- NL NL85234D patent/NL85234C/xx active
-
1949
- 1949-09-23 US US117360A patent/US2614246A/en not_active Expired - Lifetime
-
1950
- 1950-09-06 GB GB21959/50A patent/GB672188A/en not_active Expired
- 1950-09-18 CH CH291953D patent/CH291953A/de unknown
- 1950-09-18 FR FR1083406D patent/FR1083406A/fr not_active Expired
- 1950-09-23 DE DEI2104A patent/DE836049C/de not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2170029A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1972-01-31 | 1973-09-14 | Western Electric Co |
Also Published As
| Publication number | Publication date |
|---|---|
| CH291953A (de) | 1953-07-15 |
| FR1083406A (fr) | 1955-01-10 |
| US2614246A (en) | 1952-10-14 |
| GB672188A (en) | 1952-05-14 |
| NL156183B (nl) | |
| NL85234C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | |
| DE836049C (de) | 1952-04-07 |