CH247881A - Schaltungsanordnung zur Frequenzmodulation einer Trägerwelle. - Google Patents

Schaltungsanordnung zur Frequenzmodulation einer Trägerwelle.

Info

Publication number
CH247881A
CH247881A CH247881DA CH247881A CH 247881 A CH247881 A CH 247881A CH 247881D A CH247881D A CH 247881DA CH 247881 A CH247881 A CH 247881A
Authority
CH
Switzerland
Prior art keywords
carrier wave
circuit arrangement
frequency modulation
modulation
frequency
Prior art date
Application number
Other languages
English (en)
Inventor
Gloeilampenfabrieken N Philips
Original Assignee
Philips Nv
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Philips Nv filed Critical Philips Nv
Publication of CH247881A publication Critical patent/CH247881A/de

Links

Classifications

    • 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
    • H03C3/14—Angle modulation by means of variable impedance by means of a variable reactive element simulated by circuit comprising active element with at least three electrodes, e.g. reactance-tube circuit
    • 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
CH247881D 1942-06-30 1943-06-28 Schaltungsanordnung zur Frequenzmodulation einer Trägerwelle. CH247881A (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL247881X 1942-06-30

Publications (1)

Publication Number Publication Date
CH247881A true CH247881A (de) 1947-03-31

Family

ID=19780930

Family Applications (1)

Application Number Title Priority Date Filing Date
CH247881D CH247881A (de) 1942-06-30 1943-06-28 Schaltungsanordnung zur Frequenzmodulation einer Trägerwelle.

Country Status (6)

Country Link
US (1) US2541649A (de)
BE (1) BE451284A (de)
CH (1) CH247881A (de)
FR (1) FR895914A (de)
GB (1) GB641543A (de)
NL (1) NL64026C (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE977095C (de) * 1950-03-07 1965-01-28 Siemens Ag Elektrischer Zweipol in einer Schaltung fuer Frequenzmodulation, Frequenznachstellung oder den Abgleich von Messbrueckenanordnungen
US2666182A (en) * 1950-09-19 1954-01-12 Rca Corp Frequency control apparatus
US2857573A (en) * 1953-05-22 1958-10-21 Rca Corp Frequency modulated transistor oscillator

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1777410A (en) * 1928-03-06 1930-10-07 Lester L Jones Variable relay condenser
US2351368A (en) * 1942-06-03 1944-06-13 Rca Corp Reactance tube
US2350171A (en) * 1942-06-19 1944-05-30 Rca Corp Reactance controlled generator

Also Published As

Publication number Publication date
BE451284A (de)
FR895914A (fr) 1945-02-07
US2541649A (en) 1951-02-13
NL64026C (de) 1900-01-01
GB641543A (en) 1950-08-16

Similar Documents

Publication Publication Date Title
CH266832A (de) Schaltung zum Stabilisieren der Trägerfrequenz eines frequenzmodulierten Oszillators.
CH247881A (de) Schaltungsanordnung zur Frequenzmodulation einer Trägerwelle.
CH250224A (de) Schaltungsanordnung zur Frequenzmodulation einer elektrischen Schwingung.
FR941200A (fr) Système de modulation de fréquence
CH241789A (de) Schaltung zur Frequenzmodulierung einer Trägerschwingung.
AT169133B (de) Schaltung zur Frequenzmodulation einer Trägerwelle
CH235396A (de) Trägerfrequenzanlage.
CH241543A (de) Schaltung zur Frequenz- oder Phasenmodulation von elektrischen Schwingungen.
CH231617A (de) Einrichtung zur Übertragung von Signalen mittels einer in der Frequenz modulierten Trägerschwingung.
CH246393A (de) Schaltung zur Verringerung der bei der Übertragung von in der Frequenz oder Phase modulierten Schwingungen auftretenden Verzerrung.
DK75693C (da) Kobling til frekvensmodulation af en bærebølge.
DK73490C (da) Kobling til frekvensmodulering af en ønsket bæresvingning.
CA408236A (en) Modulated carrier wave circuit arrangement
AU117126B2 (en) Frequency modulated carrier wave receiver circuits
AU116803B2 (en) Frequency modulation converters
FR932691A (fr) Transmetteur par onde porteuse à haute fréquence modulée
DK72071C (da) Kobling til frekvensmodulation af en elektrisk svingning.
AU577942A (en) Frequency modulated carrier wave receiver circuits
AU117707B2 (en) Frequency modulation
AU118744B2 (en) Frequency modulation
AU117777B2 (en) Frequency modulation
AU496842A (en) Frequency modulation converters
DK72375C (da) Kobling til stabilisering af bærefrekvensen af en frekvensmoduleret svingning.
AU117196B2 (en) Frequency modulation tuning indicator
CH228781A (de) Gerät zur Herstellung von Nachrichtenverbindungen mittels modulierter Trägerwelle.