FR946097A - Improvement in frequency modulation processes - Google Patents

Improvement in frequency modulation processes

Info

Publication number
FR946097A
FR946097A FR946097DA FR946097A FR 946097 A FR946097 A FR 946097A FR 946097D A FR946097D A FR 946097DA FR 946097 A FR946097 A FR 946097A
Authority
FR
France
Prior art keywords
improvement
frequency modulation
modulation processes
processes
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
French (fr)
Inventor
Edwin Howard Armstrong
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=23215936&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=FR946097(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed filed Critical
Application granted granted Critical
Publication of FR946097A publication Critical patent/FR946097A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C3/00—Angle modulation
    • H03C3/02—Details
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C3/00—Angle modulation
    • H03C3/02—Details
    • H03C3/09—Modifications of modulator for regulating the mean frequency
FR946097D 1940-01-12 1947-05-05 Improvement in frequency modulation processes Expired FR946097A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US313497A US2290159A (en) 1940-01-12 1940-01-12 Frequency modulation system

Publications (1)

Publication Number Publication Date
FR946097A true FR946097A (en) 1949-05-23

Family

ID=23215936

Family Applications (1)

Application Number Title Priority Date Filing Date
FR946097D Expired FR946097A (en) 1940-01-12 1947-05-05 Improvement in frequency modulation processes

Country Status (5)

Country Link
US (1) US2290159A (en)
BE (1) BE473157A (en)
FR (1) FR946097A (en)
GB (1) GB621228A (en)
NL (1) NL67371C (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2470892A (en) * 1942-11-25 1949-05-24 Hartford Nat Bank & Trust Co Stabilized frequency modulator
US2602159A (en) * 1946-06-14 1952-07-01 Collins Radio Co Frequency modulation generator
NL141942B (en) * 1947-08-19 Meier Hermann Ernst STONE TO LAY IN CONNECTION.
US2773125A (en) * 1953-10-12 1956-12-04 Esther M Armstrong Multiplex frequency modulation transmitter

Also Published As

Publication number Publication date
BE473157A (en)
US2290159A (en) 1942-07-21
NL67371C (en)
GB621228A (en) 1949-04-06

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