FR941200A - Système de modulation de fréquence - Google Patents

Système de modulation de fréquence

Info

Publication number
FR941200A
FR941200A FR941200DA FR941200A FR 941200 A FR941200 A FR 941200A FR 941200D A FR941200D A FR 941200DA FR 941200 A FR941200 A FR 941200A
Authority
FR
France
Prior art keywords
frequency modulation
modulation system
frequency
modulation
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)
Inventor
Frederick Emmons Terman
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.)
International Standard Electric Corp
Original Assignee
International Standard 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 International Standard Electric Corp filed Critical International Standard Electric Corp
Application granted granted Critical
Publication of FR941200A publication Critical patent/FR941200A/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
    • H03C3/12—Angle modulation by means of variable impedance by means of a variable reactive element
    • H03C3/20—Angle modulation by means of variable impedance by means of a variable reactive element the element being a voltage-dependent capacitor

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplitude Modulation (AREA)
FR941200D 1942-03-10 1946-03-27 Système de modulation de fréquence Expired FR941200A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US434098A US2372231A (en) 1942-03-10 1942-03-10 Frequency modulation system

Publications (1)

Publication Number Publication Date
FR941200A true FR941200A (fr) 1949-01-04

Family

ID=23722822

Family Applications (1)

Application Number Title Priority Date Filing Date
FR941200D Expired FR941200A (fr) 1942-03-10 1946-03-27 Système de modulation de fréquence

Country Status (2)

Country Link
US (1) US2372231A (fr)
FR (1) FR941200A (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2543042A (en) * 1945-05-07 1951-02-27 Standard Telephones Cables Ltd Tuning means for coaxial line conductors
US2744222A (en) * 1952-03-24 1956-05-01 Beckman Instruments Inc Dynamic capacitor
US2755419A (en) * 1953-06-12 1956-07-17 Hans E Hollmann Electromechanical nonlinear capacitor
US2921186A (en) * 1954-06-10 1960-01-12 Polarad Electronics Corp Means for generating a voltage linearly proportional to frequency
US2830240A (en) * 1954-09-23 1958-04-08 Hoffman Electronics Corp Electromagnetically controlled capacitors or the like
DE1121219B (de) * 1958-01-02 1962-01-04 Siemens Ag Schwingkondensator
US3015764A (en) * 1958-07-31 1962-01-02 George V Young Vacuum chopper system

Also Published As

Publication number Publication date
US2372231A (en) 1945-03-27

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