GB9419866D0 - Communications system - Google Patents

Communications system

Info

Publication number
GB9419866D0
GB9419866D0 GB9419866A GB9419866A GB9419866D0 GB 9419866 D0 GB9419866 D0 GB 9419866D0 GB 9419866 A GB9419866 A GB 9419866A GB 9419866 A GB9419866 A GB 9419866A GB 9419866 D0 GB9419866 D0 GB 9419866D0
Authority
GB
United Kingdom
Prior art keywords
communications system
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.)
Withdrawn
Application number
GB9419866A
Other versions
GB2289812A (en
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
Original Assignee
Northern Telecom 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 Northern Telecom Ltd filed Critical Northern Telecom Ltd
Publication of GB9419866D0 publication Critical patent/GB9419866D0/en
Publication of GB2289812A publication Critical patent/GB2289812A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/04—Selecting arrangements for multiplex systems for time-division multiplexing
    • H04Q11/0428—Integrated services digital network, i.e. systems for transmission of different types of digitised signals, e.g. speech, data, telecentral, television signals
    • H04Q11/0478—Provisions for broadband connections
    • 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
    • H04B10/2589—Bidirectional transmission
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/2801—Broadband local area networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/14—Systems for two-way working
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/22—Adaptations for optical transmission
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/54—Store-and-forward switching systems 
    • H04L12/56—Packet switching systems
    • H04L12/5601—Transfer mode dependent, e.g. ATM
    • H04L2012/5603—Access techniques
    • H04L2012/5609—Topology
    • H04L2012/561—Star, e.g. cross-connect, concentrator, subscriber group equipment, remote electronics
GB9419866A 1994-04-29 1994-10-03 Bidirectional communications Withdrawn GB2289812A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9408582A GB9408582D0 (en) 1994-04-29 1994-04-29 Communications system

Publications (2)

Publication Number Publication Date
GB9419866D0 true GB9419866D0 (en) 1994-11-16
GB2289812A GB2289812A (en) 1995-11-29

Family

ID=10754365

Family Applications (2)

Application Number Title Priority Date Filing Date
GB9408582A Pending GB9408582D0 (en) 1994-04-29 1994-04-29 Communications system
GB9419866A Withdrawn GB2289812A (en) 1994-04-29 1994-10-03 Bidirectional communications

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB9408582A Pending GB9408582D0 (en) 1994-04-29 1994-04-29 Communications system

Country Status (1)

Country Link
GB (2) GB9408582D0 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9602807D0 (en) * 1996-02-12 1996-04-10 Northern Telecom Ltd A bidirectional communications network
DE19632791B4 (en) * 1996-08-15 2009-06-25 Deutsche Telekom Ag Method and system for broadcasting
JPH10150647A (en) * 1996-11-19 1998-06-02 Fujitsu Ltd Videoconference system
US6600815B1 (en) 1996-12-23 2003-07-29 Alcatel Usa Sourcing, L.P. Telephone network access adapter
GB2320643B (en) * 1996-12-23 2001-08-15 Dsc Telecom Lp Telephone network access adapter
US6763193B1 (en) 1998-12-16 2004-07-13 Lucent Technologies Inc. Optical communication system optically combining both baseband and passband signals
JP3350926B2 (en) * 1999-03-30 2002-11-25 日本電気株式会社 PON protection switching method and apparatus
DE60034281T2 (en) * 1999-08-06 2007-12-20 Lucent Technologies Inc. An optical transmission system for optically combining baseband and transmission band signals
GB2361597A (en) * 2000-04-20 2001-10-24 Abb Offshore Systems Ltd Underwater optical fibre communication system
US7272271B2 (en) 2001-09-26 2007-09-18 Celight, Inc. Electro-optical integrated transmitter chip for arbitrary quadrature modulation of optical signals
FR2905212B1 (en) * 2006-08-23 2008-11-07 Ifotec Sa FIBER OPTIC HIGH SPEED TRANSMISSION SYSTEM AND METHOD FOR CONNECTING ADDITIONAL SUBSCRIBERS.

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59216335A (en) * 1983-05-24 1984-12-06 Fujitsu Ltd Optical transmission system
JPS59216336A (en) * 1983-05-24 1984-12-06 Fujitsu Ltd Optical transmission system
JPH053458A (en) * 1990-10-26 1993-01-08 Nec Corp Bi-direction optical transmitting method and device
US5303229A (en) * 1991-07-31 1994-04-12 Alcatel Network Systems, Inc. Optical network unit
ES2111552T3 (en) * 1991-12-23 1998-03-16 Alsthom Cge Alcatel OPTICAL TRANSMISSION SYSTEM.
DE59303979D1 (en) * 1993-03-30 1996-10-31 Siemens Ag Passive optical telecommunications system

Also Published As

Publication number Publication date
GB2289812A (en) 1995-11-29
GB9408582D0 (en) 1994-06-22

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)