AU1081488A - Optical communications network - Google Patents

Optical communications network

Info

Publication number
AU1081488A
AU1081488A AU10814/88A AU1081488A AU1081488A AU 1081488 A AU1081488 A AU 1081488A AU 10814/88 A AU10814/88 A AU 10814/88A AU 1081488 A AU1081488 A AU 1081488A AU 1081488 A AU1081488 A AU 1081488A
Authority
AU
Australia
Prior art keywords
communications network
optical communications
optical
network
communications
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
AU10814/88A
Other versions
AU602553B2 (en
Inventor
David Wynford Faulkner
David Brian Payne
Jeffrey Richard Stern
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.)
British Telecommunications PLC
Original Assignee
British Telecommunications PLC
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
Priority claimed from GB878710736A external-priority patent/GB8710736D0/en
Priority claimed from GB878723282A external-priority patent/GB8723282D0/en
Priority claimed from GB878727846A external-priority patent/GB8727846D0/en
Application filed by British Telecommunications PLC filed Critical British Telecommunications PLC
Publication of AU1081488A publication Critical patent/AU1081488A/en
Application granted granted Critical
Publication of AU602553B2 publication Critical patent/AU602553B2/en
Anticipated expiration legal-status Critical
Ceased 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
    • H04B10/50—Transmitters
    • 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
    • H04B10/27—Arrangements for networking
    • H04B10/272—Star-type networks or tree-type networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/08—Time-division multiplex systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/02—Details
    • H04J3/06—Synchronising arrangements
    • H04J3/0602—Systems characterised by the synchronising information used
    • H04J3/0605—Special codes used as synchronising signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/02—Details
    • H04J3/06—Synchronising arrangements
    • H04J3/0635—Clock or time synchronisation in a network
    • H04J3/0682—Clock or time synchronisation in a network by delay compensation, e.g. by compensation of propagation delay or variations thereof, by ranging
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03828—Arrangements for spectral shaping; Arrangements for providing signals with specified spectral properties
    • H04L25/03866—Arrangements for spectral shaping; Arrangements for providing signals with specified spectral properties using scrambling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
AU10814/88A 1987-01-05 1988-01-05 Optical communications network Ceased AU602553B2 (en)

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
GB8700069 1987-01-05
GB8700069 1987-01-05
GB8710736 1987-05-06
GB878710736A GB8710736D0 (en) 1987-05-06 1987-05-06 Control of optical systems
GB878723282A GB8723282D0 (en) 1987-10-05 1987-10-05 Optical communications
GB8723282 1987-10-05
GB878727846A GB8727846D0 (en) 1987-11-27 1987-11-27 Optical communications network
GB8727846 1987-11-27

Publications (2)

Publication Number Publication Date
AU1081488A true AU1081488A (en) 1988-07-27
AU602553B2 AU602553B2 (en) 1990-10-18

Family

ID=27449865

Family Applications (1)

Application Number Title Priority Date Filing Date
AU10814/88A Ceased AU602553B2 (en) 1987-01-05 1988-01-05 Optical communications network

Country Status (4)

Country Link
EP (1) EP0296201A1 (en)
JP (1) JPH01502470A (en)
AU (1) AU602553B2 (en)
WO (1) WO1988005233A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU585188B2 (en) * 1987-01-05 1989-06-08 British Telecommunications Public Limited Company An optical broadcast network

Families Citing this family (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8713794D0 (en) * 1987-06-12 1987-07-15 British Telecomm Optical multiplexing
FR2636482B1 (en) * 1988-09-13 1993-11-12 Abiven Jacques SYNCHRONIZATION METHOD FOR WORD MULTIPLEXING IN A FIBER OPTICAL STAR COMMUNICATION NETWORK
GB8903567D0 (en) * 1989-02-16 1989-04-05 British Telecomm An optical network
DE3907495A1 (en) * 1989-03-08 1990-09-13 Standard Elektrik Lorenz Ag OPTICAL MESSAGE TRANSMISSION SYSTEM FOR THE SUBSCRIBER AREA
DE3907497A1 (en) * 1989-03-08 1990-09-13 Standard Elektrik Lorenz Ag OPTICAL MESSAGE TRANSMISSION SYSTEM FOR THE SUBSCRIBER AREA
CA2008900C (en) * 1989-04-04 1998-01-20 Ta-Shing Chu Optical fiber microcellular mobile radio
GB2232548A (en) * 1989-04-25 1990-12-12 British Telecomm An optical network and a method of using the network
EP0423942B1 (en) * 1989-10-17 1996-01-10 Nortel Networks Corporation Synchronous network
GB8923351D0 (en) * 1989-10-17 1989-12-06 Stc Plc Multifrequency optical network
AT392555B (en) * 1989-10-24 1991-04-25 Alcatel Austria Ag METHOD FOR TRANSMITTING BINARY INFORMATION IN AN OPTICAL TRANSMISSION NETWORK AND OPTICAL TRANSMISSION NETWORK
GB2240011B (en) * 1990-01-11 1994-01-19 Stc Plc Telecommunications systems
LU87840A1 (en) * 1990-05-04 1991-05-07 Siemens Ag PASSIVES OPTISCHES TELEKOMMUNIKATIONSSYSTEM
DE59208529D1 (en) * 1991-02-11 1997-07-03 Sel Alcatel Ag Optical communication system for the subscriber access area with optical amplifiers
ES2076078B1 (en) * 1993-05-31 1997-10-16 Alcatel Standard Electrica SYSTEM OF DETERMINATION OF THE INSTANT OF EMISSION OF DATA GUSTS IN TDMA COMMUNICATIONS.
US5519830A (en) * 1993-06-10 1996-05-21 Adc Telecommunications, Inc. Point-to-multipoint performance monitoring and failure isolation system
US5528579A (en) * 1993-06-11 1996-06-18 Adc Telecommunications, Inc. Added bit signalling in a telecommunications system
GB2281161B (en) * 1993-08-04 1997-05-28 Fulcrum Communications Limited Optical data communications networks
ES2076103B1 (en) * 1993-08-20 1997-10-16 Alcatel Standard Electrica DIGITAL COMMUNICATIONS SYSTEM WITH MULTIPLE ACCESS BY DIVISION IN TIME THROUGH FIBER OPTICS.
US5408462A (en) * 1993-10-07 1995-04-18 Adc Telecommunications, Inc. Protection switching apparatus and method
US5453737A (en) * 1993-10-08 1995-09-26 Adc Telecommunications, Inc. Control and communications apparatus
US5487120A (en) * 1994-02-09 1996-01-23 International Business Machines Corporation Optical wavelength division multiplexer for high speed, protocol-independent serial data sources
FR2725093B1 (en) * 1994-09-23 1996-12-27 Cit Alcatel TIME-TO-MULTI-POINT POINT-TO-MULTI-POINT TRANSMISSION NETWORK
US6334219B1 (en) 1994-09-26 2001-12-25 Adc Telecommunications Inc. Channel selection for a hybrid fiber coax network
US7280564B1 (en) 1995-02-06 2007-10-09 Adc Telecommunications, Inc. Synchronization techniques in multipoint-to-point communication using orthgonal frequency division multiplexing
USRE42236E1 (en) 1995-02-06 2011-03-22 Adc Telecommunications, Inc. Multiuse subcarriers in multipoint-to-point communication using orthogonal frequency division multiplexing
DE29615486U1 (en) * 1996-09-05 1996-10-17 Kinshofer Georg Prof Dr Arrangement for measuring the passive optical networks
JP4147607B2 (en) 1998-03-13 2008-09-10 松下電器産業株式会社 Auxiliary scrambling / descrambling method and apparatus
CA2243888C (en) * 1998-07-27 2005-10-18 Newbridge Networks Corporation Ds-o synchronization over a wireless atm link
US6356374B1 (en) * 1998-10-09 2002-03-12 Scientific-Atlanta, Inc. Digital optical transmitter
FR2844051B1 (en) 2002-08-30 2004-11-12 Nexans SYSTEM FOR CONTROL BY REFLECTOMETRY IN THE TIME DOMAIN (OTDR) OF AN OPTICAL NETWORK

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3104404A1 (en) * 1981-02-07 1982-08-19 Kabel- und Metallwerke Gutehoffnungshütte AG, 3000 Hannover >>Broadband network for communications signals<<
CA1227844A (en) * 1983-09-07 1987-10-06 Michael T.H. Hewitt Communications network having a single node and a plurality of outstations
EP0162994A1 (en) * 1984-05-30 1985-12-04 Heinrich-Hertz-Institut für Nachrichtentechnik Berlin GmbH Communication network and its application
AU4286385A (en) * 1984-06-15 1985-12-19 International Standard Electric Corp. Optical wavelength-multiplexed system
JPS6124338A (en) * 1984-07-12 1986-02-03 Nec Corp Multi-direction multiplex communication system
DE3507064A1 (en) * 1985-02-28 1986-08-28 Standard Elektrik Lorenz Ag, 7000 Stuttgart OPTICAL NEWS TRANSMISSION SYSTEM IN THE SUBSCRIBER AREA

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU585188B2 (en) * 1987-01-05 1989-06-08 British Telecommunications Public Limited Company An optical broadcast network

Also Published As

Publication number Publication date
AU602553B2 (en) 1990-10-18
EP0296201A1 (en) 1988-12-28
JPH01502470A (en) 1989-08-24
WO1988005233A1 (en) 1988-07-14

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