NO900989L - Cmi-dekoder og taktgjenvinningsinnretning. - Google Patents

Cmi-dekoder og taktgjenvinningsinnretning.

Info

Publication number
NO900989L
NO900989L NO90900989A NO900989A NO900989L NO 900989 L NO900989 L NO 900989L NO 90900989 A NO90900989 A NO 90900989A NO 900989 A NO900989 A NO 900989A NO 900989 L NO900989 L NO 900989L
Authority
NO
Norway
Prior art keywords
clock
cmi
recovery device
elements
outside
Prior art date
Application number
NO90900989A
Other languages
English (en)
Other versions
NO900989D0 (no
Inventor
Jens-Peter Eilken
Kurt Gasser
Horst-Ludwig Pfriem
Original Assignee
Siemens Ag
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 Siemens Ag filed Critical Siemens Ag
Publication of NO900989D0 publication Critical patent/NO900989D0/no
Publication of NO900989L publication Critical patent/NO900989L/no

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M5/00—Conversion of the form of the representation of individual digits
    • H03M5/02—Conversion to or from representation by pulses
    • H03M5/04—Conversion to or from representation by pulses the pulses having two levels
    • H03M5/06—Code representation, e.g. transition, for a given bit cell depending only on the information in that bit cell
    • H03M5/12—Biphase level code, e.g. split phase code, Manchester code; Biphase space or mark code, e.g. double frequency code
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/02—Details
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L7/00—Arrangements for synchronising receiver with transmitter
    • H04L7/0054—Detection of the synchronisation error by features other than the received signal transition
    • H04L7/0066—Detection of the synchronisation error by features other than the received signal transition detection of error based on transmission code rule

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Theoretical Computer Science (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Manipulation Of Pulses (AREA)
  • Superconductors And Manufacturing Methods Therefor (AREA)
  • Cameras Adapted For Combination With Other Photographic Or Optical Apparatuses (AREA)
  • Control And Other Processes For Unpacking Of Materials (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)

Abstract

Det skal angis en løsning for en CMI-dekoder og taktgjenvinningsinnretning som i høy grad er integrerbar og ikke behøver noen separat krets for faseav- stemning og forsterkning og som i hele driftsområdet har en høy jittertoleranse. En kjent CMI-dekoder (6,7,8) blir tilordnet en taktgjenvinningsinnretning med kjente elenenter (6,10b,llb) og nye elementer (15,16b,17b). Den siste inneholder .en portanorcning som av det CMI-kodede datasignal (Dl) er i stand til å utlede flere taktimpulser enn det som var tidligere mulig. Bortsett fra gangtidsledd (6,15) og en taktfrekvens- velgerinnretning (12b) befinner alle elementene seg i en integrert krets (18). ¿ Inngangsnivåomformeren (19,20,21,24,25) og utgangsnivåomformeren (23) sorger for det innenfor og utenfor integrerte krets (18) nødvendige nivå. For å oppnå samme gangtider på dataveien og taktveien og da taktfrekvensvelgerinnretningen (12b) må være anordnet utenfor brikken, anordnes også dataveien et stykke utenfor brikken. Innretningens jittertoleranse blir derfor ikke påvirket av forskjellige effekter på de to veier. Innretningen kan benyttes i multipleks- utstyr for digitalsignaler.
NO90900989A 1989-03-02 1990-03-01 Cmi-dekoder og taktgjenvinningsinnretning. NO900989L (no)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3906696 1989-03-02

Publications (2)

Publication Number Publication Date
NO900989D0 NO900989D0 (no) 1990-03-01
NO900989L true NO900989L (no) 1990-09-03

Family

ID=6375365

Family Applications (1)

Application Number Title Priority Date Filing Date
NO90900989A NO900989L (no) 1989-03-02 1990-03-01 Cmi-dekoder og taktgjenvinningsinnretning.

Country Status (6)

Country Link
EP (1) EP0388615B1 (no)
AT (1) ATE105985T1 (no)
DE (1) DE59005703D1 (no)
DK (1) DK0388615T3 (no)
ES (1) ES2052984T3 (no)
NO (1) NO900989L (no)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2432246A1 (fr) * 1978-07-26 1980-02-22 Cit Alcatel Procede et circuit de decodage d'un signal binaire code en cmi
DE3310713A1 (de) * 1983-03-24 1984-09-27 ANT Nachrichtentechnik GmbH, 7150 Backnang Verfahren zum decodieren eines cmi-signals
DE3625589A1 (de) * 1986-07-29 1988-02-04 Siemens Ag Cmi-decoder
JP2550985B2 (ja) * 1987-04-21 1996-11-06 日本電気株式会社 Ｃｍｉ符号復号器
DE3723187A1 (de) * 1987-07-14 1989-01-26 Philips Patentverwaltung Digitales nachrichtenuebertragungssystem

Also Published As

Publication number Publication date
EP0388615B1 (de) 1994-05-18
NO900989D0 (no) 1990-03-01
DK0388615T3 (da) 1994-06-27
ES2052984T3 (es) 1994-07-16
ATE105985T1 (de) 1994-06-15
DE59005703D1 (de) 1994-06-23
EP0388615A1 (de) 1990-09-26

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