BE631867A - - Google Patents
Info
- Publication number
- BE631867A BE631867A BE631867DA BE631867A BE 631867 A BE631867 A BE 631867A BE 631867D A BE631867D A BE 631867DA BE 631867 A BE631867 A BE 631867A
- Authority
- BE
- Belgium
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
- H03C7/025—Modulating electromagnetic waves in transmission lines, waveguides, cavity resonators or radiation fields of antennas using semiconductor devices
- H03C7/027—Modulating electromagnetic waves in transmission lines, waveguides, cavity resonators or radiation fields of antennas using semiconductor devices using diodes
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03C—MODULATION
- H03C3/00—Angle modulation
- H03C3/02—Details
- H03C3/06—Means for changing frequency deviation
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03C—MODULATION
- H03C3/00—Angle modulation
- H03C3/02—Details
- H03C3/08—Modifications of modulator to linearise modulation, e.g. by feedback, and clearly applicable to more than one type of modulator
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- 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
- H03C3/22—Angle modulation by means of variable impedance by means of a variable reactive element the element being a semiconductor diode, e.g. varicap diode
- H03C3/222—Angle modulation by means of variable impedance by means of a variable reactive element the element being a semiconductor diode, e.g. varicap diode using bipolar transistors
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DES79299A DE1297695B (de) | 1962-05-04 | 1962-05-04 | Modulationsschaltung zur Erzeugung hochlinear in der Frequenz modulierter elektromagnetischer Wellen mit zwei Oszillatoren |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE631867A true BE631867A (US06330241-20011211-M00004.png) |
Family
ID=7508097
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE631867D BE631867A (US06330241-20011211-M00004.png) | 1962-05-04 |
Country Status (6)
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3403354A (en) * | 1965-04-26 | 1968-09-24 | Rca Corp | Linear frequency modulation system including an oscillating transistor, an internal capacity of which is varied in accordance with a modulating signal |
| JPS5854740A (ja) * | 1981-09-28 | 1983-03-31 | Nec Corp | 周波数シンセサイザ |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE759620C (de) * | 1941-01-19 | 1954-07-26 | Ernst Dr-Ing Prokott | Frequenzmodulationsverfahren |
| US2794956A (en) * | 1942-06-30 | 1957-06-04 | Fox Benjamin | Frequency modulation system |
| FR908726A (fr) * | 1943-10-28 | 1946-04-17 | Thomson Houston Comp Francaise | Perfectionnements aux émetteurs d'ondes modulées en fréquence |
| DE841158C (de) * | 1950-10-14 | 1952-06-13 | Paul Barkow | Verfahren zur Symmetrierung des Frequenzhubes, insbesondere in Breitbandschaltungen mit Frequenzmodulation |
| US2735983A (en) * | 1951-02-15 | 1956-02-21 | mcleod | |
| DE885874C (de) * | 1951-11-10 | 1953-08-10 | Elek Sche Messtechnik | Verfahren zur Frequenzmodulation von Zentimeterwellen |
| AT182124B (de) * | 1952-06-24 | 1955-05-25 | Philips Nv | Magnetischer oder dielektrischer Modulator |
| GB775572A (en) * | 1954-04-09 | 1957-05-29 | Gen Electric Co Ltd | Improvements in or relating to the automatic frequency control of electric oscillation generators |
| US3002160A (en) * | 1958-01-29 | 1961-09-26 | Gen Electric | Phase modulation system |
| US3109995A (en) * | 1959-09-01 | 1963-11-05 | Hughes Aircraft Co | Voltage tuned oscillator |
| US3109993A (en) * | 1959-09-04 | 1963-11-05 | Collins Radio Co | Compression circuit |
| US3050693A (en) * | 1960-04-28 | 1962-08-21 | Senn Custom Inc | Variable oscillator circuit utilizing reverse biased diodes for operation at a predetermined frequency |
| NL278652A (US06330241-20011211-M00004.png) * | 1961-05-29 | |||
| NL292145A (US06330241-20011211-M00004.png) * | 1962-04-30 |
-
0
- NL NL292106D patent/NL292106A/xx unknown
- BE BE631867D patent/BE631867A/xx unknown
-
1962
- 1962-05-04 DE DES79299A patent/DE1297695B/de not_active Withdrawn
-
1963
- 1963-05-01 US US277979A patent/US3307119A/en not_active Expired - Lifetime
- 1963-05-03 SE SE4906/63A patent/SE315016B/xx unknown
- 1963-05-03 GB GB17487/63A patent/GB1018704A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| SE315016B (US06330241-20011211-M00004.png) | 1969-09-22 |
| GB1018704A (en) | 1966-02-02 |
| US3307119A (en) | 1967-02-28 |
| NL292106A (US06330241-20011211-M00004.png) | |
| DE1297695B (de) | 1969-06-19 |
