FR1177270A - Appareil de modulation - Google Patents

Appareil de modulation

Info

Publication number
FR1177270A
FR1177270A FR1177270DA FR1177270A FR 1177270 A FR1177270 A FR 1177270A FR 1177270D A FR1177270D A FR 1177270DA FR 1177270 A FR1177270 A FR 1177270A
Authority
FR
France
Prior art keywords
modulation device
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.)
TI Gotham Inc
Original Assignee
Time Inc
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 Time Inc filed Critical Time Inc
Application granted granted Critical
Publication of FR1177270A publication Critical patent/FR1177270A/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C1/00—Amplitude modulation
    • H03C1/08—Amplitude modulation by means of variable impedance element
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C7/00—Modulating electromagnetic waves
    • H03C7/02—Modulating electromagnetic waves in transmission lines, waveguides, cavity resonators or radiation fields of antennas

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Amplitude Modulation (AREA)
FR1177270D 1955-07-11 1957-06-13 Appareil de modulation Expired FR1177270A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US521122A US2877424A (en) 1955-07-11 1955-07-11 Method of connecting two cascaded modulators to provide a variable percentage of modulations

Publications (1)

Publication Number Publication Date
FR1177270A true FR1177270A (fr) 1959-04-22

Family

ID=24075455

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1177270D Expired FR1177270A (fr) 1955-07-11 1957-06-13 Appareil de modulation

Country Status (5)

Country Link
US (1) US2877424A (fr)
BE (1) BE558429A (fr)
CH (1) CH351645A (fr)
FR (1) FR1177270A (fr)
GB (1) GB803682A (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3422356A (en) * 1965-06-03 1969-01-14 Collins Radio Co Feedback compressor circuit to control maximum percentage modulation
US3743971A (en) * 1971-09-03 1973-07-03 Collins Radio Co Vor am modulator

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1744836A (en) * 1925-12-31 1930-01-28 American Telephone & Telegraph Carrier-amplitude control in radio systems
US2020409A (en) * 1933-08-15 1935-11-12 American Telephone & Telegraph Band separation system
US2362898A (en) * 1942-03-18 1944-11-14 Bell Telephone Labor Inc Signal transmission system
BE460090A (fr) * 1944-01-04
US2498677A (en) * 1945-06-19 1950-02-28 Standard Telephones Cables Ltd Communication of intelligence

Also Published As

Publication number Publication date
CH351645A (de) 1961-01-31
US2877424A (en) 1959-03-10
BE558429A (fr) 1957-06-29
GB803682A (en) 1958-10-29

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