FR851465A - Method and device for controlling the carrier wave as a function of modulation in radio transmitters - Google Patents

Method and device for controlling the carrier wave as a function of modulation in radio transmitters

Info

Publication number
FR851465A
FR851465A FR851465DA FR851465A FR 851465 A FR851465 A FR 851465A FR 851465D A FR851465D A FR 851465DA FR 851465 A FR851465 A FR 851465A
Authority
FR
France
Prior art keywords
modulation
controlling
function
carrier wave
radio transmitters
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
Other languages
French (fr)
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.)
Alcatel Lucent Deutschland AG
C Lorenz AG
Original Assignee
Standard Elektrik Lorenz AG
C Lorenz AG
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 Standard Elektrik Lorenz AG, C Lorenz AG filed Critical Standard Elektrik Lorenz AG
Application granted granted Critical
Publication of FR851465A publication Critical patent/FR851465A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C1/00—Amplitude modulation
    • H03C1/62—Modulators in which amplitude of carrier component in output is dependent upon strength of modulating signal, e.g. no carrier output when no modulating signal is present
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/40—Circuits
    • H04B1/44—Transmit/receive switching
    • H04B1/46—Transmit/receive switching by voice-frequency signals; by pilot signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Amplitude Modulation (AREA)
FR851465D 1938-03-19 1939-03-10 Method and device for controlling the carrier wave as a function of modulation in radio transmitters Expired FR851465A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE214301X 1938-03-19

Publications (1)

Publication Number Publication Date
FR851465A true FR851465A (en) 1940-01-09

Family

ID=5817983

Family Applications (1)

Application Number Title Priority Date Filing Date
FR851465D Expired FR851465A (en) 1938-03-19 1939-03-10 Method and device for controlling the carrier wave as a function of modulation in radio transmitters

Country Status (5)

Country Link
US (1) US2232080A (en)
BE (1) BE433230A (en)
CH (1) CH214301A (en)
FR (1) FR851465A (en)
NL (1) NL56601C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1054125B (en) * 1956-02-18 1959-04-02 Siemens Ag Arrangement for the automatic switching on and off of the transmitters of a wireless teletype telegraph connection
US5099332A (en) * 1989-12-08 1992-03-24 Thomson Tubes Electroniques Grid tube with increased efficiency

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2521052A (en) * 1946-03-30 1950-09-05 Bendix Aviat Corp Controlled carrier transmitter
US2671849A (en) * 1950-11-22 1954-03-09 Automatic Elect Lab Automatic volume control for alternating current
BE527481A (en) * 1953-05-18
US3397401A (en) * 1966-05-27 1968-08-13 Hughes Aircraft Co Voice operated communication system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1054125B (en) * 1956-02-18 1959-04-02 Siemens Ag Arrangement for the automatic switching on and off of the transmitters of a wireless teletype telegraph connection
US5099332A (en) * 1989-12-08 1992-03-24 Thomson Tubes Electroniques Grid tube with increased efficiency

Also Published As

Publication number Publication date
BE433230A (en)
US2232080A (en) 1941-02-18
NL56601C (en)
CH214301A (en) 1941-04-15

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