GB406674A - Improvements in or relating to modulated carrier wave transmitting systems - Google Patents

Improvements in or relating to modulated carrier wave transmitting systems

Info

Publication number
GB406674A
GB406674A GB24323/32A GB2432332A GB406674A GB 406674 A GB406674 A GB 406674A GB 24323/32 A GB24323/32 A GB 24323/32A GB 2432332 A GB2432332 A GB 2432332A GB 406674 A GB406674 A GB 406674A
Authority
GB
United Kingdom
Prior art keywords
line
valve
modulating
capacity
tube
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
GB24323/32A
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.)
Marconis Wireless Telegraph Co Ltd
BAE Systems Electronics Ltd
Original Assignee
Marconis Wireless Telegraph Co Ltd
Marconi Co Ltd
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
Priority claimed from US563725A external-priority patent/US2033231A/en
Application filed by Marconis Wireless Telegraph Co Ltd, Marconi Co Ltd filed Critical Marconis Wireless Telegraph Co Ltd
Publication of GB406674A publication Critical patent/GB406674A/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
    • H03C3/24—Angle modulation by means of variable impedance by means of a variable resistive element, e.g. tube
    • 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
    • H03C3/18—Angle modulation by means of variable impedance by means of a variable reactive element the element being a current-dependent inductor
    • 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
    • H03C3/20—Angle modulation by means of variable impedance by means of a variable reactive element the element being a voltage-dependent capacitor
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C3/00—Angle modulation
    • H03C3/10—Angle modulation by means of variable impedance
    • H03C3/24—Angle modulation by means of variable impedance by means of a variable resistive element, e.g. tube
    • H03C3/26—Angle modulation by means of variable impedance by means of a variable resistive element, e.g. tube comprising two elements controlled in push-pull by modulating signal

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplitude Modulation (AREA)
  • Transmitters (AREA)
  • Amplifiers (AREA)
GB24323/32A 1931-09-19 1932-08-31 Improvements in or relating to modulated carrier wave transmitting systems Expired GB406674A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US563725A US2033231A (en) 1931-09-19 1931-09-19 Modulation system
US21343A US2077223A (en) 1931-09-19 1935-05-14 Modulation system

Publications (1)

Publication Number Publication Date
GB406674A true GB406674A (en) 1934-02-28

Family

ID=26694574

Family Applications (1)

Application Number Title Priority Date Filing Date
GB24323/32A Expired GB406674A (en) 1931-09-19 1932-08-31 Improvements in or relating to modulated carrier wave transmitting systems

Country Status (3)

Country Link
US (1) US2077223A (de)
DE (1) DE626359C (de)
GB (1) GB406674A (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2225682A (en) * 1988-12-01 1990-06-06 Stc Plc Phase modulators

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2652539A (en) * 1945-11-27 1953-09-15 Joseph W Kearney Method and means for wide band frequency modulation
NL67619C (de) * 1946-05-23
FR959185A (de) * 1947-01-04 1950-03-25
FR975958A (fr) * 1948-09-23 1951-03-12 Thomson Houston Comp Francaise Modulation de phase à grande excursion
US2559023A (en) * 1949-02-21 1951-07-03 United Geophysical Company Inc Phase modulation
US2588551A (en) * 1949-02-21 1952-03-11 United Geophysical Company Inc Frequency modulation
US2656466A (en) * 1949-08-27 1953-10-20 Rca Corp Capacttor and circuit
US2679581A (en) * 1950-05-20 1954-05-25 Westinghouse Electric Corp Antenna tuning system
DE911742C (de) * 1952-02-17 1954-05-20 Telefunken Gmbh Schaltungsanordnung zur AEnderung der Frequenz eines Oszillators

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2225682A (en) * 1988-12-01 1990-06-06 Stc Plc Phase modulators

Also Published As

Publication number Publication date
US2077223A (en) 1937-04-13
DE626359C (de) 1936-02-28

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