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FR54608E - Systèmes de transmission d'ondes électromagnétiques modulées - Google Patents

Systèmes de transmission d'ondes électromagnétiques modulées

Info

Publication number
FR54608E
FR54608E FR54608DA FR54608E FR 54608 E FR54608 E FR 54608E FR 54608D A FR54608D A FR 54608DA FR 54608 E FR54608 E FR 54608E
Authority
FR
France
Prior art keywords
electromagnetic wave
wave transmission
transmission systems
modulated electromagnetic
modulated
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
English (en)
French (fr)
Inventor
Georges-Edme-Marcel Perroux
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
Le Materiel Telephonique Thomson CSF
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 Le Materiel Telephonique Thomson CSF filed Critical Le Materiel Telephonique Thomson CSF
Application granted granted Critical
Publication of FR54608E publication Critical patent/FR54608E/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C3/00—Angle modulation
    • H03C3/02—Details
    • H03C3/06—Means for changing frequency deviation
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B21/00—Generation of oscillations by combining unmodulated signals of different frequencies
    • H03B21/01—Generation of oscillations by combining unmodulated signals of different frequencies by beating unmodulated signals of different frequencies
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
    • H03B5/30—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator
    • H03B5/32—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator being a piezoelectric resonator
    • H03B5/34—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator being a piezoelectric resonator active element in amplifier being vacuum tube
FR54608D 1942-07-04 1942-07-04 Systèmes de transmission d'ondes électromagnétiques modulées Expired FR54608E (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR54608T 1942-07-04

Publications (1)

Publication Number Publication Date
FR54608E true FR54608E (fr) 1950-07-07

Family

ID=8689049

Family Applications (2)

Application Number Title Priority Date Filing Date
FR960673D Expired FR960673A (fi) 1942-07-04
FR54608D Expired FR54608E (fr) 1942-07-04 1942-07-04 Systèmes de transmission d'ondes électromagnétiques modulées

Family Applications Before (1)

Application Number Title Priority Date Filing Date
FR960673D Expired FR960673A (fi) 1942-07-04

Country Status (2)

Country Link
BE (1) BE454499A (fi)
FR (2) FR54608E (fi)

Also Published As

Publication number Publication date
FR960673A (fi) 1950-04-22
BE454499A (fi)

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