FR948331A - Modulateur de fréquence - Google Patents

Modulateur de fréquence

Info

Publication number
FR948331A
FR948331A FR948331DA FR948331A FR 948331 A FR948331 A FR 948331A FR 948331D A FR948331D A FR 948331DA FR 948331 A FR948331 A FR 948331A
Authority
FR
France
Prior art keywords
frequency modulator
modulator
frequency
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
Other languages
English (en)
French (fr)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Westinghouse Electric Corp
Original Assignee
Westinghouse Electric Corp
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 Westinghouse Electric Corp filed Critical Westinghouse Electric Corp
Application granted granted Critical
Publication of FR948331A publication Critical patent/FR948331A/fr
Expired legal-status Critical Current

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
FR948331D 1946-06-25 1947-06-24 Modulateur de fréquence Expired FR948331A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US679103A US2530937A (en) 1946-06-25 1946-06-25 Frequency modulator

Publications (1)

Publication Number Publication Date
FR948331A true FR948331A (fr) 1949-07-28

Family

ID=24725563

Family Applications (1)

Application Number Title Priority Date Filing Date
FR948331D Expired FR948331A (fr) 1946-06-25 1947-06-24 Modulateur de fréquence

Country Status (4)

Country Link
US (1) US2530937A (forum.php)
BE (1) BE474098A (forum.php)
FR (1) FR948331A (forum.php)
GB (1) GB628901A (forum.php)

Cited By (2)

* 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
DE977690C (de) * 1950-03-07 1968-05-22 Siemens Ag Elektrischer Zweipol, der in seinem Blindwiderstandswert durch eine Steuergroesse veraenderbar ist

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2749310A (en) * 1954-09-03 1956-06-05 Shell Dev Lubricating compositions
US3020493A (en) * 1959-02-27 1962-02-06 Hughes Aircraft Co Frequency modulation circuit

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2296962A (en) * 1939-12-22 1942-09-29 Rca Corp Frequency modulation
US2354799A (en) * 1940-07-26 1944-08-01 Rca Corp Phase modulation
US2436834A (en) * 1942-11-17 1948-03-02 Edwin K Stodola Phase and frequency modulation
US2374000A (en) * 1943-03-06 1945-04-17 Rca Corp Phase modulator
US2430126A (en) * 1943-08-25 1947-11-04 Rca Corp Phase modulation

Cited By (2)

* 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
DE977690C (de) * 1950-03-07 1968-05-22 Siemens Ag Elektrischer Zweipol, der in seinem Blindwiderstandswert durch eine Steuergroesse veraenderbar ist

Also Published As

Publication number Publication date
GB628901A (en) 1949-09-07
BE474098A (forum.php)
US2530937A (en) 1950-11-21

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