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GB2304503B - Clock recovery scheme for data transmission systems - Google Patents

Clock recovery scheme for data transmission systems

Info

Publication number
GB2304503B
GB2304503B GB9517033A GB9517033A GB2304503B GB 2304503 B GB2304503 B GB 2304503B GB 9517033 A GB9517033 A GB 9517033A GB 9517033 A GB9517033 A GB 9517033A GB 2304503 B GB2304503 B GB 2304503B
Authority
GB
United Kingdom
Prior art keywords
data transmission
transmission systems
clock recovery
recovery scheme
scheme
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 - Fee Related
Application number
GB9517033A
Other versions
GB2304503A (en
GB9517033D0 (en
Inventor
Bipinchandra Patel
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.)
Nortel Networks Ltd
Nortel Networks Corp USA
Original Assignee
Northern Telecom Ltd
Nortel Networks Corp USA
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 Northern Telecom Ltd, Nortel Networks Corp USA filed Critical Northern Telecom Ltd
Priority to GB9517033A priority Critical patent/GB2304503B/en
Publication of GB9517033D0 publication Critical patent/GB9517033D0/en
Publication of GB2304503A publication Critical patent/GB2304503A/en
Application granted granted Critical
Publication of GB2304503B publication Critical patent/GB2304503B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/25—Arrangements specific to fibre transmission
    • H04B10/2507—Arrangements specific to fibre transmission for the reduction or elimination of distortion or dispersion
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/03—WDM arrangements
    • H04J14/0305—WDM arrangements in end terminals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/02—Details
    • H04J3/04—Distributors combined with modulators or demodulators
    • H04J3/047—Distributors with transistors or integrated circuits
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L7/00—Arrangements for synchronising receiver with transmitter
    • H04L7/0008—Synchronisation information channels, e.g. clock distribution lines
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L7/00—Arrangements for synchronising receiver with transmitter
    • H04L7/02—Speed or phase control by the received code signals, the signals containing no special synchronisation information
    • H04L7/027—Speed or phase control by the received code signals, the signals containing no special synchronisation information extracting the synchronising or clock signal from the received signal spectrum, e.g. by using a resonant or bandpass circuit
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L7/00—Arrangements for synchronising receiver with transmitter
    • H04L7/04—Speed or phase control by synchronisation signals
    • H04L7/041—Speed or phase control by synchronisation signals using special codes as synchronising signal
    • H04L2007/047—Speed or phase control by synchronisation signals using special codes as synchronising signal using a sine signal or unmodulated carrier

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
GB9517033A 1995-08-19 1995-08-19 Clock recovery scheme for data transmission systems Expired - Fee Related GB2304503B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9517033A GB2304503B (en) 1995-08-19 1995-08-19 Clock recovery scheme for data transmission systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9517033A GB2304503B (en) 1995-08-19 1995-08-19 Clock recovery scheme for data transmission systems

Publications (3)

Publication Number Publication Date
GB9517033D0 GB9517033D0 (en) 1995-10-25
GB2304503A GB2304503A (en) 1997-03-19
GB2304503B true GB2304503B (en) 2000-04-05

Family

ID=10779495

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9517033A Expired - Fee Related GB2304503B (en) 1995-08-19 1995-08-19 Clock recovery scheme for data transmission systems

Country Status (1)

Country Link
GB (1) GB2304503B (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1456795A (en) * 1974-05-16 1976-11-24 Trw Inc Digital data sample decision and hold circuit
US4320515A (en) * 1980-03-07 1982-03-16 Harris Corporation Bit synchronizer
GB2176376A (en) * 1985-06-06 1986-12-17 Rca Corp Clock recovery circuit for data systems
US4862484A (en) * 1988-01-21 1989-08-29 Harris Corporation Apparatus for clock recovery from digital data
US5197082A (en) * 1988-05-10 1993-03-23 Nec Corporation Digital signal regenerator

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1456795A (en) * 1974-05-16 1976-11-24 Trw Inc Digital data sample decision and hold circuit
US4320515A (en) * 1980-03-07 1982-03-16 Harris Corporation Bit synchronizer
GB2176376A (en) * 1985-06-06 1986-12-17 Rca Corp Clock recovery circuit for data systems
US4862484A (en) * 1988-01-21 1989-08-29 Harris Corporation Apparatus for clock recovery from digital data
US5197082A (en) * 1988-05-10 1993-03-23 Nec Corporation Digital signal regenerator

Also Published As

Publication number Publication date
GB2304503A (en) 1997-03-19
GB9517033D0 (en) 1995-10-25

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20040819