FR996628A - Système pour la transmission de signaux en courant alternatif - Google Patents

Système pour la transmission de signaux en courant alternatif

Info

Publication number
FR996628A
FR996628A FR996628DA FR996628A FR 996628 A FR996628 A FR 996628A FR 996628D A FR996628D A FR 996628DA FR 996628 A FR996628 A FR 996628A
Authority
FR
France
Prior art keywords
alternating current
transmitting signals
transmitting
signals
alternating
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
Henri Gardere
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 filed Critical
Application granted granted Critical
Publication of FR996628A publication Critical patent/FR996628A/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
    • H04L27/22—Demodulator circuits; Receiver circuits
    • H04L27/227—Demodulator circuits; Receiver circuits using coherent demodulation
    • H04L27/2275—Demodulator circuits; Receiver circuits using coherent demodulation wherein the carrier recovery circuit uses the received modulated signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
FR996628D 1945-05-07 1945-05-07 Système pour la transmission de signaux en courant alternatif Expired FR996628A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR892460X 1945-05-07

Publications (1)

Publication Number Publication Date
FR996628A true FR996628A (fr) 1951-12-24

Family

ID=9389590

Family Applications (2)

Application Number Title Priority Date Filing Date
FR996628D Expired FR996628A (fr) 1945-05-07 1945-05-07 Système pour la transmission de signaux en courant alternatif
FR56738D Expired FR56738E (fr) 1945-05-07 1947-03-19 Système pour la transmission de signaux en courant alternatif

Family Applications After (1)

Application Number Title Priority Date Filing Date
FR56738D Expired FR56738E (fr) 1945-05-07 1947-03-19 Système pour la transmission de signaux en courant alternatif

Country Status (6)

Country Link
US (1) US2471319A (pm)
CH (1) CH254683A (pm)
DE (1) DE892460C (pm)
FR (2) FR996628A (pm)
GB (1) GB629532A (pm)
NL (1) NL62039C (pm)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2819339A (en) * 1956-01-12 1958-01-07 William E Scoville R. f. phase shift keying system for teletype communication
US3078344A (en) * 1960-10-25 1963-02-19 Robertshaw Fulton Controls Co Phase demodulation of keyed carrier by use of synchronous gating, with phase lock driven step wise in response to forbidden output
DE1137759B (de) * 1961-09-19 1962-10-11 Siemens Ag Verfahren zur UEbertragung von Start-Stop-Telegrafiezeichen mit Hilfe einer quaternaer phasenmodulierten Traegerfrequenz

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1901642A (en) * 1929-12-23 1933-03-14 Rca Corp Signaling
GB453254A (en) * 1934-11-15 1936-09-08 Soc Et Liaisons Telephoniques Improvements in or relating to telegraph signalling systems
BE427593A (pm) * 1937-04-19

Also Published As

Publication number Publication date
GB629532A (en) 1949-09-22
CH254683A (fr) 1948-05-15
NL62039C (pm)
FR56738E (fr) 1952-10-03
US2471319A (en) 1949-05-24
DE892460C (de) 1953-10-08

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