FR820182A - Système de signalisation à ondes porteuses - Google Patents

Système de signalisation à ondes porteuses

Info

Publication number
FR820182A
FR820182A FR820182DA FR820182A FR 820182 A FR820182 A FR 820182A FR 820182D A FR820182D A FR 820182DA FR 820182 A FR820182 A FR 820182A
Authority
FR
France
Prior art keywords
carrier wave
signaling system
wave signaling
carrier
wave
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)
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 FR820182A publication Critical patent/FR820182A/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
    • H04K1/00—Secret communication
    • H04K1/02—Secret communication by adding a second signal to make the desired signal unintelligible
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
FR820182D 1936-07-11 1936-07-11 Système de signalisation à ondes porteuses Expired FR820182A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR820182T 1936-07-11

Publications (1)

Publication Number Publication Date
FR820182A true FR820182A (fr) 1937-11-05

Family

ID=9270676

Family Applications (1)

Application Number Title Priority Date Filing Date
FR820182D Expired FR820182A (fr) 1936-07-11 1936-07-11 Système de signalisation à ondes porteuses

Country Status (1)

Country Link
FR (1) FR820182A (fr)

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