CH247881A - Circuit arrangement for frequency modulation of a carrier wave. - Google Patents

Circuit arrangement for frequency modulation of a carrier wave.

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
German (de)
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/en

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 Circuit arrangement for frequency modulation of a carrier wave. CH247881A (en)

Applications Claiming Priority (1)

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

Publications (1)

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

Family

ID=19780930

Family Applications (1)

Application Number Title Priority Date Filing Date
CH247881D CH247881A (en) 1942-06-30 1943-06-28 Circuit arrangement for frequency modulation of a carrier wave.

Country Status (6)

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

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE977095C (en) * 1950-03-07 1965-01-28 Siemens Ag Electrical two-pole in a circuit for frequency modulation, frequency adjustment or the adjustment of measuring bridge arrangements
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 (en)
GB641543A (en) 1950-08-16
FR895914A (en) 1945-02-07
US2541649A (en) 1951-02-13
NL64026C (en) 1900-01-01

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