BE441132A - - Google Patents

Info

Publication number
BE441132A
BE441132A BE441132DA BE441132A BE 441132 A BE441132 A BE 441132A BE 441132D A BE441132D A BE 441132DA BE 441132 A BE441132 A BE 441132A
Authority
BE
Belgium
Application number
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 filed Critical
Publication of BE441132A publication Critical patent/BE441132A/xx

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C3/00—Angle modulation
    • H03C3/02—Details
    • H03C3/09—Modifications of modulator for regulating the mean frequency
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C3/00—Angle modulation
    • H03C3/02—Details
    • H03C3/04—Means in or combined with modulating stage for reducing amplitude modulation
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C3/00—Angle modulation
    • H03C3/10—Angle modulation by means of variable impedance
    • H03C3/28—Angle modulation by means of variable impedance using variable impedance driven mechanically or acoustically
BE441132D 1940-02-20 1941-04-10 BE441132A (xx)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US319877A US2218524A (en) 1940-02-20 1940-02-20 Frequency modulation system
US326898A US2250104A (en) 1940-02-20 1940-03-30 Frequency regulation

Publications (1)

Publication Number Publication Date
BE441132A true BE441132A (xx) 1941-10-31

Family

ID=26982185

Family Applications (1)

Application Number Title Priority Date Filing Date
BE441132D BE441132A (xx) 1940-02-20 1941-04-10

Country Status (6)

Country Link
US (2) US2218524A (xx)
BE (1) BE441132A (xx)
DE (1) DE882424C (xx)
FR (2) FR869048A (xx)
GB (1) GB546677A (xx)
NL (1) NL67475C (xx)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2425657A (en) * 1941-04-17 1947-08-12 Rca Corp Short-wave apparatus
US2475779A (en) * 1941-05-14 1949-07-12 Rca Corp Wave length modulator and control means
US2440600A (en) * 1941-05-14 1948-04-27 Rca Corp Electric motor control
US2794956A (en) * 1942-06-30 1957-06-04 Fox Benjamin Frequency modulation system
US2966676A (en) * 1942-06-30 1960-12-27 Bessie E Fox Electronic apparatus and method for measuring distance
US2422422A (en) * 1942-08-31 1947-06-17 Rca Corp Reactance tube controlled generator
US2415868A (en) * 1942-10-28 1947-02-18 Rca Corp Timing modulation
US2434259A (en) * 1943-06-22 1948-01-13 Bell Telephone Labor Inc Circuit arrangement utilizing a plurality of electron discharge devices
US2511137A (en) * 1944-12-16 1950-06-13 Rca Corp Frequency control
US2609509A (en) * 1945-06-13 1952-09-02 Bertram C Hill Electrical testing apparatus
US2490448A (en) * 1945-11-09 1949-12-06 Amalgamated Wireless Australas Frequency changer
US2588730A (en) * 1947-05-02 1952-03-11 Wayne R Johnson Method and apparatus for frequency response measurement
US2615129A (en) * 1947-05-16 1952-10-21 Edwin M Mcmillan Synchro-cyclotron
US2659813A (en) * 1950-02-11 1953-11-17 Bell Telephone Labor Inc Frequency modulation repeater
US2688730A (en) * 1950-10-18 1954-09-07 Smith Meeker Engineering Co Stable frequency generator system
US2761065A (en) * 1953-05-27 1956-08-28 Harris A Robinson Frequency control system
US3202918A (en) * 1962-10-03 1965-08-24 Armand P Lucchesi Frequency multiplier
US3789302A (en) * 1972-03-31 1974-01-29 Microwave Ass Inc Fm heterodyne transmitter
US10424278B2 (en) * 2017-08-02 2019-09-24 Applied Invention, Llc Bell with subharmonic difference tone

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE399079A (xx) * 1931-09-17
BE428896A (xx) * 1937-07-09

Also Published As

Publication number Publication date
US2250104A (en) 1941-07-22
NL67475C (xx) 1951-03-15
FR878762A (fr) 1943-01-29
GB546677A (en) 1942-07-24
FR869048A (fr) 1942-01-22
US2218524A (en) 1940-10-22
DE882424C (de) 1953-07-09

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