FR2426948A1 - Procede et dispositif de transmission d'information - Google Patents

Procede et dispositif de transmission d'information

Info

Publication number
FR2426948A1
FR2426948A1 FR7913384A FR7913384A FR2426948A1 FR 2426948 A1 FR2426948 A1 FR 2426948A1 FR 7913384 A FR7913384 A FR 7913384A FR 7913384 A FR7913384 A FR 7913384A FR 2426948 A1 FR2426948 A1 FR 2426948A1
Authority
FR
France
Prior art keywords
information
transmission
switches
transmitted
oscillator
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.)
Withdrawn
Application number
FR7913384A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of FR2426948A1 publication Critical patent/FR2426948A1/fr
Withdrawn legal-status Critical Current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
    • H04L27/2278—Demodulator circuits; Receiver circuits using coherent demodulation wherein the carrier recovery circuit uses the received modulated signals using correlation techniques, e.g. for spread spectrum signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/02—Amplitude-modulated carrier systems, e.g. using on-off keying; Single sideband or vestigial sideband modulation
    • H04L27/04—Modulator circuits; Transmitter circuits

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Dc Digital Transmission (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Bidirectional Digital Transmission (AREA)

Abstract

L'invention concerne la transmission d'informations numériques. L'émetteur 1 d'un dispositif de transmission d'information comprend notamment un oscillateur sinusoïdal 4 qui attaque deux commutateurs analogiques 6a, 6b. Ces commutateurs sont commandés par une bascule 7 qui reçoit les données à transmettre. En fonction de l'information à transmettre, les commutateurs 6a, 6b appliquent le signal de l'oscillateur sur l'un des conducteurs de la ligne de transmission 3a, 3b, et un potentiel constant sur l'autre. Application à la téléinformatique.
FR7913384A 1978-05-25 1979-05-25 Procede et dispositif de transmission d'information Withdrawn FR2426948A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/909,601 US4184045A (en) 1978-05-25 1978-05-25 System and method for transmission of information

Publications (1)

Publication Number Publication Date
FR2426948A1 true FR2426948A1 (fr) 1979-12-21

Family

ID=25427531

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7913384A Withdrawn FR2426948A1 (fr) 1978-05-25 1979-05-25 Procede et dispositif de transmission d'information

Country Status (6)

Country Link
US (1) US4184045A (fr)
JP (1) JPS54154209A (fr)
DE (1) DE2919737A1 (fr)
FR (1) FR2426948A1 (fr)
GB (1) GB2021904B (fr)
SE (1) SE7904177L (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4320521A (en) * 1980-07-25 1982-03-16 National Semiconductor Corporation Data bus transceiver
FR2501442B1 (fr) * 1980-12-29 1987-07-17 Thomson Csf Procede et dispositif de detection du decrochage d'un combine telephonique
DE3117927C2 (de) * 1981-05-06 1986-11-27 Siemens AG, 1000 Berlin und 8000 München Anordnung zur Erkennung der längsten von in digitalen Signalen periodisch enthaltenen Folgen von Nullzeichen
US4523192A (en) * 1981-12-17 1985-06-11 International Computers Limited Data processing network
DE3751608T2 (de) * 1986-09-01 1996-06-27 Nippon Electric Co Serielles Busschnittstellensystem zur Datenübertragung mit einer Zweidrahtleitung als Taktbus und Datenbus.

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL6812919A (fr) * 1967-09-27 1969-03-31
US3827026A (en) * 1971-01-04 1974-07-30 Honeywell Inf Systems Encoding technique for enabling a device to process different types of digital information transmitted along a single information channel
US4084069A (en) * 1976-11-01 1978-04-11 Burroughs Corporation Encoding and driving means for use in a three-level digital data communication system

Also Published As

Publication number Publication date
JPS54154209A (en) 1979-12-05
US4184045A (en) 1980-01-15
DE2919737A1 (de) 1979-11-29
GB2021904B (en) 1982-06-09
GB2021904A (en) 1979-12-05
SE7904177L (sv) 1979-11-26

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Legal Events

Date Code Title Description
RE Withdrawal of published application