FR866850A - Système de modulation de fréquence - Google Patents

Système de modulation de fréquence

Info

Publication number
FR866850A
FR866850A FR866850DA FR866850A FR 866850 A FR866850 A FR 866850A FR 866850D A FR866850D A FR 866850DA FR 866850 A FR866850 A FR 866850A
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)
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.)
RCA Corp
Original Assignee
RCA Corp
Radio Corporation of America
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 RCA Corp, Radio Corporation of America filed Critical RCA Corp
Application granted granted Critical
Publication of FR866850A publication Critical patent/FR866850A/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
    • H03C3/14—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
FR866850D 1939-07-01 1940-08-22 Système de modulation de fréquence Expired FR866850A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US282406A US2248045A (en) 1939-07-01 1939-07-01 Frequency modulation

Publications (1)

Publication Number Publication Date
FR866850A true FR866850A (fr) 1941-09-08

Family

ID=23081381

Family Applications (1)

Application Number Title Priority Date Filing Date
FR866850D Expired FR866850A (fr) 1939-07-01 1940-08-22 Système de modulation de fréquence

Country Status (3)

Country Link
US (1) US2248045A (fr)
DE (1) DE876716C (fr)
FR (1) FR866850A (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2668238A (en) * 1946-08-20 1954-02-02 Frederick W Frink Wide-band phase shifting means
DE1218019B (de) * 1964-01-16 1966-06-02 Telefonbau Schaltungsanordnung zur eigensicheren Modulation eines Senders, insbesondere fuer Fernsteuerungs- und Fernmesszwecke

Also Published As

Publication number Publication date
US2248045A (en) 1941-07-08
DE876716C (de) 1953-05-18

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