GB871209A - A method of producing phase-modulated waves - Google Patents

A method of producing phase-modulated waves

Info

Publication number
GB871209A
GB871209A GB12188/59A GB1218859A GB871209A GB 871209 A GB871209 A GB 871209A GB 12188/59 A GB12188/59 A GB 12188/59A GB 1218859 A GB1218859 A GB 1218859A GB 871209 A GB871209 A GB 871209A
Authority
GB
United Kingdom
Prior art keywords
degrees
amplitude
outputs
circuits
phases
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
GB12188/59A
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.)
Tesla AS
Original Assignee
Tesla AS
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 Tesla AS filed Critical Tesla AS
Publication of GB871209A publication Critical patent/GB871209A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C1/00—Amplitude modulation
    • H03C1/50—Amplitude modulation by converting angle modulation to amplitude modulation
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C3/00—Angle modulation
    • H03C3/38—Angle modulation by converting amplitude modulation to angle modulation
    • H03C3/40—Angle modulation by converting amplitude modulation to angle modulation using two signal paths the outputs of which have a predetermined phase difference and at least one output being amplitude-modulated

Landscapes

  • Amplifiers (AREA)

Abstract

871,209. Phase modulation; amplitude modulation. TESLA NARODNI PODNIK. April 10, 1959 [April 12, 1958], No. 12188/59. Class 40(5) A carrier wave is divided into three components of relative phases 0 degrees Œ 90 degrees and the original phase (0 degrees) amplitude modulated at A.M. and vectorially combined with the phases Œ90 degrees in circuits O, with outputs amplitude detected at D and fed back with amplification to gain control modulators MM in the paths of phases Œ90 degrees so that the outputs of adder circuits O are constant in amplitude but phase modulated in equal but opposite senses. The two outputs of circuits O may then be added, after further amplifying, to produce a high quality amplitude modulated output.
GB12188/59A 1958-04-12 1959-04-10 A method of producing phase-modulated waves Expired GB871209A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CS871209X 1958-04-12

Publications (1)

Publication Number Publication Date
GB871209A true GB871209A (en) 1961-06-21

Family

ID=5456351

Family Applications (1)

Application Number Title Priority Date Filing Date
GB12188/59A Expired GB871209A (en) 1958-04-12 1959-04-10 A method of producing phase-modulated waves

Country Status (3)

Country Link
FR (1) FR1219896A (en)
GB (1) GB871209A (en)
NL (1) NL237850A (en)

Also Published As

Publication number Publication date
NL237850A (en)
FR1219896A (en) 1960-05-20

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