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FR2432246A1 - Procede et circuit de decodage d'un signal binaire code en cmi - Google Patents

Procede et circuit de decodage d'un signal binaire code en cmi

Info

Publication number
FR2432246A1
FR2432246A1 FR7822153A FR7822153A FR2432246A1 FR 2432246 A1 FR2432246 A1 FR 2432246A1 FR 7822153 A FR7822153 A FR 7822153A FR 7822153 A FR7822153 A FR 7822153A FR 2432246 A1 FR2432246 A1 FR 2432246A1
Authority
FR
France
Prior art keywords
cmi
decoding
binary
signal
binary signal
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.)
Granted
Application number
FR7822153A
Other languages
English (en)
Other versions
FR2432246B1 (fr
Inventor
Pierre Le Brozec
Francois Ferret
Pierre Doussoux
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.)
Alcatel CIT SA
Original Assignee
Alcatel CIT SA
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 Alcatel CIT SA filed Critical Alcatel CIT SA
Priority to FR7822153A priority Critical patent/FR2432246A1/fr
Priority to BE1/9465A priority patent/BE877678A/fr
Priority to LU81517A priority patent/LU81517A1/fr
Priority to GB7924821A priority patent/GB2026819B/en
Priority to US06/058,650 priority patent/US4325053A/en
Priority to DE2929248A priority patent/DE2929248C2/de
Priority to CA332,344A priority patent/CA1129105A/fr
Priority to NL7905729A priority patent/NL7905729A/nl
Priority to IT68544/79A priority patent/IT1118811B/it
Priority to IE1412/79A priority patent/IE48301B1/en
Publication of FR2432246A1 publication Critical patent/FR2432246A1/fr
Application granted granted Critical
Publication of FR2432246B1 publication Critical patent/FR2432246B1/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/38—Synchronous or start-stop systems, e.g. for Baudot code
    • H04L25/40—Transmitting circuits; Receiving circuits
    • H04L25/49—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems
    • H04L25/4906—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems using binary codes
    • H04L25/4908—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems using binary codes using mBnB codes
    • H04L25/491—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems using binary codes using mBnB codes using 1B2B codes
    • H04L25/4912—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems using binary codes using mBnB codes using 1B2B codes using CMI or 2-HDB-3 code

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Dc Digital Transmission (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)

Abstract

L'invention concerne le décodage d'un signal binaire à inversion codée des 1. Elle a pour objet un procédé de décodage consistant à détecter les transitions de 0 à 1 du signal binaire codé en CMI, à éliminer parmi elles celles apparaissant une période d'élément binaire après les transistions de 1 à 0 qui les précèdent immédiatement et à utiliser les transitions de 0 à 1 restantes pour synchroniser des impulsions de durée égale à une période d'élément binaire et obtenir après complèmentation un signal délivrant en NZR-L les données binaires contenues dans le signal codé en CMI. Elle s'utilise avantageusement pour le décodage de signaux numériques de transmission codés en CMI à la jonction d'équipements numériques fonctionnant à un débit binaire très élevé.
FR7822153A 1978-07-26 1978-07-26 Procede et circuit de decodage d'un signal binaire code en cmi Granted FR2432246A1 (fr)

Priority Applications (10)

Application Number Priority Date Filing Date Title
FR7822153A FR2432246A1 (fr) 1978-07-26 1978-07-26 Procede et circuit de decodage d'un signal binaire code en cmi
BE1/9465A BE877678A (fr) 1978-07-26 1979-07-13 Procede et circuit de decodage d'un signal binaire code en cmi
GB7924821A GB2026819B (en) 1978-07-26 1979-07-17 Method and a circuit for decoding a cmi encoded binara signal
LU81517A LU81517A1 (fr) 1978-07-26 1979-07-17 Procede et circuit de decodage d'un signal binaire code en cmi
US06/058,650 US4325053A (en) 1978-07-26 1979-07-19 Method and a circuit for decoding a C.M.I. encoded binary signal
DE2929248A DE2929248C2 (de) 1978-07-26 1979-07-19 Verfahren und Anordnung zum Dekodieren eines CMI-kodierten Binärsignals
CA332,344A CA1129105A (fr) 1978-07-26 1979-07-23 Procede et circuit de decodage d'un signal binaire code en cmi
NL7905729A NL7905729A (nl) 1978-07-26 1979-07-24 Werkwijze en inrichting voor het decoderen van een in cmi gecodeerd binair signaal.
IT68544/79A IT1118811B (it) 1978-07-26 1979-07-25 Procedimento e circuito di decodificazione di un segnale binario codificato secondo il sistema omi
IE1412/79A IE48301B1 (en) 1978-07-26 1979-08-08 A method and a circuit for decoding a c.m.i.encoded binary signal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7822153A FR2432246A1 (fr) 1978-07-26 1978-07-26 Procede et circuit de decodage d'un signal binaire code en cmi

Publications (2)

Publication Number Publication Date
FR2432246A1 true FR2432246A1 (fr) 1980-02-22
FR2432246B1 FR2432246B1 (fr) 1980-12-12

Family

ID=9211208

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7822153A Granted FR2432246A1 (fr) 1978-07-26 1978-07-26 Procede et circuit de decodage d'un signal binaire code en cmi

Country Status (10)

Country Link
US (1) US4325053A (fr)
BE (1) BE877678A (fr)
CA (1) CA1129105A (fr)
DE (1) DE2929248C2 (fr)
FR (1) FR2432246A1 (fr)
GB (1) GB2026819B (fr)
IE (1) IE48301B1 (fr)
IT (1) IT1118811B (fr)
LU (1) LU81517A1 (fr)
NL (1) NL7905729A (fr)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4502142A (en) * 1982-09-07 1985-02-26 Lockheed Electronics Company, Inc. Apparatus for detecting errors in a digital data stream encoded in a double density code
DE3236365A1 (de) * 1982-10-01 1984-04-05 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Funksystem zur nachrichtenuebertragung mit sich laengs vorgegebener strecken bewegenden sende-empfangsstationen
DE3245845A1 (de) * 1982-12-10 1984-06-14 Siemens AG, 1000 Berlin und 8000 München Cmi-decoder
DE3248624A1 (de) * 1982-12-30 1984-08-23 Hans Kolbe & Co, 3202 Bad Salzdetfurth Schaltungsanordnung zur erzeugung eines digitalen binaeren datensignals und eines zugehoerigen taktsignals aus einem cmi-codierten signals, dessen taktfrequenz ueber 30 mhz liegt
DE3302761A1 (de) * 1983-01-27 1984-08-02 Siemens AG, 1000 Berlin und 8000 München Cmi-decoder
DE3310713A1 (de) * 1983-03-24 1984-09-27 ANT Nachrichtentechnik GmbH, 7150 Backnang Verfahren zum decodieren eines cmi-signals
IT8324267A0 (it) * 1983-12-20 1983-12-20 Italtel Spa Disposizione circuitale atta a rilevare il tasso di errore in sistemi di trasmissione di tipo numerico.
NL8403366A (nl) * 1984-11-06 1986-06-02 Philips Nv Inrichting voor het bewaken van een cmi-codeomvormer.
FR2598050B1 (fr) * 1986-04-28 1992-10-23 Telecommunications Sa Dispositif de decodage pour code cmi
EP0388615B1 (fr) * 1989-03-02 1994-05-18 Siemens Aktiengesellschaft Dispositif de récupération de cycle et de décodage CMI
SE466725B (sv) * 1990-07-18 1992-03-23 Goeran Krook Foerfarande foer att begraensa bandbredden hos en godtycklig binaer signal
KR930007652B1 (ko) * 1991-07-19 1993-08-14 한국전기 통신공사 Cmi데이터 비트동기를 위한 위상검출기와 연동되어 동작하는 cmi/nrz복호기
US6184807B1 (en) * 1998-07-28 2001-02-06 Lucent Technologies, Inc. Glitch-free bi-phased encoder
US20020041622A1 (en) * 2000-09-29 2002-04-11 David Steed Spread spectrum frequency hopping communications system

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3683277A (en) * 1970-04-13 1972-08-08 Astrocon Corp Communication system for binary coded data
US3953673A (en) * 1973-10-16 1976-04-27 The General Electric Company Limited Digital data signalling systems and apparatus therefor

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1051518A (fr) * 1964-07-08 1900-01-01
US3699554A (en) * 1970-07-02 1972-10-17 Honeywell Inf Systems Method and apparatus for detecting binary data by integrated signal polarity comparison
NO133170C (fr) * 1973-04-13 1976-03-17 Standard Tel Kabelfab As
US3967061A (en) * 1975-03-05 1976-06-29 Ncr Corporation Method and apparatus for recovering data and clock information in a self-clocking data stream
JPS52112311A (en) * 1976-03-18 1977-09-20 Sony Corp Demodulating circuit

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3683277A (en) * 1970-04-13 1972-08-08 Astrocon Corp Communication system for binary coded data
US3953673A (en) * 1973-10-16 1976-04-27 The General Electric Company Limited Digital data signalling systems and apparatus therefor

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
EXBK/72 *

Also Published As

Publication number Publication date
NL7905729A (nl) 1980-01-29
DE2929248C2 (de) 1987-02-26
FR2432246B1 (fr) 1980-12-12
GB2026819B (en) 1982-08-25
IE48301B1 (en) 1984-11-28
US4325053A (en) 1982-04-13
BE877678A (fr) 1980-01-14
GB2026819A (en) 1980-02-06
LU81517A1 (fr) 1980-02-14
IE791412L (en) 1980-01-26
CA1129105A (fr) 1982-08-03
IT1118811B (it) 1986-03-03
DE2929248A1 (de) 1980-02-14
IT7968544A0 (it) 1979-07-25

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