HK1027688A1 - Signal transmission system - Google Patents

Signal transmission system

Info

Publication number
HK1027688A1
HK1027688A1 HK00106675A HK00106675A HK1027688A1 HK 1027688 A1 HK1027688 A1 HK 1027688A1 HK 00106675 A HK00106675 A HK 00106675A HK 00106675 A HK00106675 A HK 00106675A HK 1027688 A1 HK1027688 A1 HK 1027688A1
Authority
HK
Hong Kong
Prior art keywords
signal transmission
transmission system
signal
transmission
Prior art date
Application number
HK00106675A
Other languages
English (en)
Inventor
Michael Regan
Original Assignee
Marconi Comm Ltd
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 Marconi Comm Ltd filed Critical Marconi Comm Ltd
Publication of HK1027688A1 publication Critical patent/HK1027688A1/xx

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0298—Wavelength-division multiplex systems with sub-carrier multiplexing [SCM]
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Optical Communication System (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
HK00106675A 1999-03-12 2000-10-20 Signal transmission system HK1027688A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9905718A GB2347807B (en) 1999-03-12 1999-03-12 Signal transmission system

Publications (1)

Publication Number Publication Date
HK1027688A1 true HK1027688A1 (en) 2001-01-19

Family

ID=10849513

Family Applications (1)

Application Number Title Priority Date Filing Date
HK00106675A HK1027688A1 (en) 1999-03-12 2000-10-20 Signal transmission system

Country Status (8)

Country Link
EP (1) EP1035668A3 (fr)
JP (1) JP2000278213A (fr)
CN (1) CN1267149A (fr)
AU (1) AU2073300A (fr)
GB (1) GB2347807B (fr)
HK (1) HK1027688A1 (fr)
NO (1) NO20001255L (fr)
RU (1) RU2000106112A (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7509047B2 (en) 2004-03-12 2009-03-24 Futurewei Technologies, Inc. System and method for subcarrier modulation in ISM band as supervisory channel
US7274872B2 (en) * 2004-03-12 2007-09-25 Futurewei Technologies, Inc. System and method for subcarrier modulation as supervisory channel
DE602005012077D1 (de) * 2004-05-03 2009-02-12 Huawei Tech Co Ltd System und verfahren zur subträgermodulation im ism-band als beaufsichtigungskanal

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4278850A (en) * 1978-04-11 1981-07-14 Kokusai Denshin Denwa Co., Ltd. Monitoring system for optical transmission line repeaters
JPH04362836A (ja) * 1991-06-11 1992-12-15 Hamamatsu Photonics Kk ディジタル通信伝送監視方式
US5825515A (en) * 1991-09-03 1998-10-20 Lucent Technologies Inc. Supervisory apparatus for optical transmission system
US5436750A (en) * 1993-05-07 1995-07-25 Nec Corporation Optical repeatered transmission with fault locating capability
GB2314224A (en) * 1996-06-11 1997-12-17 Stc Submarine Systems Ltd Fibre optic transmission

Also Published As

Publication number Publication date
EP1035668A2 (fr) 2000-09-13
AU2073300A (en) 2000-09-14
JP2000278213A (ja) 2000-10-06
NO20001255L (no) 2000-09-13
EP1035668A3 (fr) 2004-01-14
GB2347807B (en) 2001-02-28
CN1267149A (zh) 2000-09-20
NO20001255D0 (no) 2000-03-10
GB2347807A (en) 2000-09-13
GB9905718D0 (en) 1999-05-05
RU2000106112A (ru) 2002-01-20

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Legal Events

Date Code Title Description
PF Patent in force
PC Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee)

Effective date: 20050312