GB1085315A - Improvements in or relating to amplitude modulated transmitters - Google Patents

Improvements in or relating to amplitude modulated transmitters

Info

Publication number
GB1085315A
GB1085315A GB4925164A GB4925164A GB1085315A GB 1085315 A GB1085315 A GB 1085315A GB 4925164 A GB4925164 A GB 4925164A GB 4925164 A GB4925164 A GB 4925164A GB 1085315 A GB1085315 A GB 1085315A
Authority
GB
United Kingdom
Prior art keywords
amplifier
modulating
output
signal
dec
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
GB4925164A
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.)
Thales SA
Original Assignee
CSF Compagnie Generale de Telegraphie sans Fil SA
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 CSF Compagnie Generale de Telegraphie sans Fil SA filed Critical CSF Compagnie Generale de Telegraphie sans Fil SA
Priority to DE19651466763 priority Critical patent/DE1466763A1/en
Publication of GB1085315A publication Critical patent/GB1085315A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/38—Transmitter circuitry for the transmission of television signals according to analogue transmission standards
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J25/00—Transit-time tubes, e.g. klystrons, travelling-wave tubes, magnetrons
    • H01J25/02—Tubes with electron stream modulated in velocity or density in a modulator zone and thereafter giving up energy in an inducing zone, the zones being associated with one or more resonators
    • H01J25/10—Klystrons, i.e. tubes having two or more resonators, without reflection of the electron stream, and in which the stream is modulated mainly by velocity in the zone of the input resonator
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C1/00—Amplitude modulation
    • H03C1/02—Details
    • H03C1/06—Modifications of modulator to reduce distortion, e.g. by feedback, and clearly applicable to more than one type of modulator
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/02—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation
    • H03F1/04—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in discharge-tube amplifiers
    • H03F1/06—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in discharge-tube amplifiers to raise the efficiency of amplifying modulated radio frequency waves; to raise the efficiency of amplifiers acting also as modulators

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Transmitters (AREA)
  • Amplifiers (AREA)
  • Amplitude Modulation (AREA)

Abstract

1,085,315. Amplitude modulation. C.S.F. COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL. Dec. 3, 1964 [Dec. 4, 1963], No. 49251/64. Heading H3R. Modulating signals from source 28 which are applied via amplifier 27 to modulate the output of a modulated amplifier 30 supplied with a carrier signal from U.H.F. oscillator 29, are also applied via amplifier 31 to further modulate the signal in the output modulating amplifier stage 20. A negative feedback signal derived from the output signal via pick-up 22 and detector 23 is fed back to the amplifier 27. The output stage 20 is a multiple cavity klystron having the modulating signal fed to its modulating anode and the amplifiers 27, 31 may operate in Class A and B, respectively.
GB4925164A 1963-12-04 1964-12-03 Improvements in or relating to amplitude modulated transmitters Expired GB1085315A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19651466763 DE1466763A1 (en) 1964-12-03 1965-12-02 Operating table

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR956015A FR1385583A (en) 1963-12-04 1963-12-04 Improvements to dual or multiple amplitude modulation transmitters

Publications (1)

Publication Number Publication Date
GB1085315A true GB1085315A (en) 1967-09-27

Family

ID=8818088

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4925164A Expired GB1085315A (en) 1963-12-04 1964-12-03 Improvements in or relating to amplitude modulated transmitters

Country Status (6)

Country Link
DE (1) DE1258918B (en)
ES (1) ES306701A1 (en)
FR (1) FR1385583A (en)
GB (1) GB1085315A (en)
LU (1) LU47483A1 (en)
NL (1) NL6414165A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2558673B1 (en) * 1984-01-20 1986-04-25 Thomson Csf TELEVISION TRANSMITTER COMPRISING A COMMON KLYSTRON FOR IMAGE AND SOUND

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2743421A (en) * 1951-11-02 1956-04-24 Lab For Electronics Inc Modulation circuit

Also Published As

Publication number Publication date
ES306701A1 (en) 1965-05-01
DE1258918B (en) 1968-01-18
FR1385583A (en) 1965-01-15
LU47483A1 (en) 1965-01-30
NL6414165A (en) 1965-06-07

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