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 (enrdf_load_stackoverflow)

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 (enrdf_load_stackoverflow) 1941-10-31

Family

ID=26982185

Family Applications (1)

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

Country Status (6)

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

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 (enrdf_load_stackoverflow) * 1931-09-17
BE428896A (enrdf_load_stackoverflow) * 1937-07-09

Also Published As

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

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