GB625268A - Improvements in circuits for modulating the frequency or the phase of electrical oscillations - Google Patents

Improvements in circuits for modulating the frequency or the phase of electrical oscillations

Info

Publication number
GB625268A
GB625268A GB21540/46A GB2154046A GB625268A GB 625268 A GB625268 A GB 625268A GB 21540/46 A GB21540/46 A GB 21540/46A GB 2154046 A GB2154046 A GB 2154046A GB 625268 A GB625268 A GB 625268A
Authority
GB
United Kingdom
Prior art keywords
circuit
oscillations
feed
frequency
modulating
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
GB21540/46A
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.)
Philips Lamps Ltd
Koninklijke Philips NV
Original Assignee
Philips Lamps Ltd
Philips Gloeilampenfabrieken NV
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 Philips Lamps Ltd, Philips Gloeilampenfabrieken NV filed Critical Philips Lamps Ltd
Publication of GB625268A publication Critical patent/GB625268A/en
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

Landscapes

  • Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
  • Amplitude Modulation (AREA)
  • Ac-Ac Conversion (AREA)
GB21540/46A 1943-02-25 1946-07-18 Improvements in circuits for modulating the frequency or the phase of electrical oscillations Expired GB625268A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL241543X 1943-02-25

Publications (1)

Publication Number Publication Date
GB625268A true GB625268A (en) 1949-06-24

Family

ID=19780577

Family Applications (1)

Application Number Title Priority Date Filing Date
GB21540/46A Expired GB625268A (en) 1943-02-25 1946-07-18 Improvements in circuits for modulating the frequency or the phase of electrical oscillations

Country Status (6)

Country Link
US (1) US2582673A (enrdf_load_stackoverflow)
BE (1) BE454503A (enrdf_load_stackoverflow)
CH (1) CH241543A (enrdf_load_stackoverflow)
DE (1) DE864413C (enrdf_load_stackoverflow)
FR (1) FR902171A (enrdf_load_stackoverflow)
GB (1) GB625268A (enrdf_load_stackoverflow)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB687783A (en) * 1950-04-15 1953-02-18 Emi Ltd Improvements relating to circuit arrangements for modulating carrier frequency signals
DE872228C (de) * 1951-09-18 1953-03-30 Telefunken Gmbh Schaltung zur Modulation von Hochfrequenzschwingungen
US2858436A (en) * 1953-12-14 1958-10-28 Gen Electric Automatic frequency control system
JPS6042393Y2 (ja) * 1980-01-24 1985-12-26 シチズン時計株式会社 クオ−ツ腕時計の防水リユウズ装置

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2279660A (en) * 1937-04-13 1942-04-14 Rca Corp Wave length modulation system
US2323598A (en) * 1941-01-07 1943-07-06 Rca Corp Variable signal response network
US2361658A (en) * 1942-10-26 1944-10-31 Rca Corp Sound recording and reproducing system
US2394427A (en) * 1942-11-09 1946-02-05 Rca Corp Wave length modulation
US2383848A (en) * 1943-02-25 1945-08-28 Rca Corp Reactance control circuit
US2382436A (en) * 1943-08-18 1945-08-14 Bell Telephone Labor Inc Reactance tube circuit

Also Published As

Publication number Publication date
US2582673A (en) 1952-01-15
DE864413C (de) 1953-01-26
CH241543A (de) 1946-03-15
FR902171A (fr) 1945-08-21
BE454503A (enrdf_load_stackoverflow)

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