FR836695A - Telegraph systems - Google Patents

Telegraph systems

Info

Publication number
FR836695A
FR836695A FR836695DA FR836695A FR 836695 A FR836695 A FR 836695A FR 836695D A FR836695D A FR 836695DA FR 836695 A FR836695 A FR 836695A
Authority
FR
France
Prior art keywords
telegraph systems
telegraph
systems
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.)
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 FR836695A publication Critical patent/FR836695A/en
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
    • H04L27/233—Demodulator circuits; Receiver circuits using non-coherent demodulation
    • H04L27/2332—Demodulator circuits; Receiver circuits using non-coherent demodulation using a non-coherent carrier
    • 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)
  • Interface Circuits In Exchanges (AREA)
  • Devices For Supply Of Signal Current (AREA)
FR836695D 1937-04-19 1938-04-15 Telegraph systems Expired FR836695A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1112537A GB494099A (en) 1937-04-19 1937-04-19 Improvements in or relating to telegraph systems

Publications (1)

Publication Number Publication Date
FR836695A true FR836695A (en) 1939-01-24

Family

ID=9980494

Family Applications (1)

Application Number Title Priority Date Filing Date
FR836695D Expired FR836695A (en) 1937-04-19 1938-04-15 Telegraph systems

Country Status (4)

Country Link
BE (1) BE427593A (en)
DE (1) DE737381C (en)
FR (1) FR836695A (en)
GB (1) GB494099A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL62039C (en) * 1945-05-07

Also Published As

Publication number Publication date
BE427593A (en)
DE737381C (en) 1943-07-12
GB494099A (en) 1938-10-19

Similar Documents

Publication Publication Date Title
CH235154A (en) Telecommunication system.
FR843159A (en) Transmission systems
FR832598A (en) Electrical communications systems
FR839582A (en) Amplifier systems
FR839635A (en) Radio-electric systems
FR833743A (en) Radio transmission systems
FR847965A (en) TV systems
FR858682A (en) Television communication systems
FR848805A (en) Telecommunications systems
FR847620A (en) Telegraph systems
FR839203A (en) Amplifier systems
FR836695A (en) Telegraph systems
FR867449A (en) Transmission systems
FR840443A (en) Modulator systems
CH239303A (en) Telecommunication system.
FR832760A (en) Improvements to telegraph systems
CH202671A (en) Telegraph system.
FR844098A (en) Electrical communications systems
FR847831A (en) Telegraph repeater systems
FR840151A (en) Telegraph communications systems
FR947133A (en) Telegraph systems
FR836752A (en) Transmission systems
CH205696A (en) Picture teletype.
DK58803C (en) Telegraph system.
CH203263A (en) Telegraph system.