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GB2289394B - A ring network system - Google Patents

A ring network system

Info

Publication number
GB2289394B
GB2289394B GB9509345A GB9509345A GB2289394B GB 2289394 B GB2289394 B GB 2289394B GB 9509345 A GB9509345 A GB 9509345A GB 9509345 A GB9509345 A GB 9509345A GB 2289394 B GB2289394 B GB 2289394B
Authority
GB
United Kingdom
Prior art keywords
network system
ring network
ring
network
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
GB9509345A
Other versions
GB9509345D0 (en
GB2289394A (en
Inventor
David Tattersall
Ian Jackson
Peter Quinn
De Poll Gerald Van
Malcolm Lewis
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.)
Europlex Research Ltd
Original Assignee
Europlex Research 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 Europlex Research Ltd filed Critical Europlex Research Ltd
Publication of GB9509345D0 publication Critical patent/GB9509345D0/en
Publication of GB2289394A publication Critical patent/GB2289394A/en
Application granted granted Critical
Publication of GB2289394B publication Critical patent/GB2289394B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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]
    • H04L12/42—Loop networks
    • H04L12/423—Loop networks with centralised control, e.g. polling

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Small-Scale Networks (AREA)
GB9509345A 1994-05-09 1995-05-09 A ring network system Expired - Fee Related GB2289394B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IE943800 1994-05-09

Publications (3)

Publication Number Publication Date
GB9509345D0 GB9509345D0 (en) 1995-06-28
GB2289394A GB2289394A (en) 1995-11-15
GB2289394B true GB2289394B (en) 1998-06-10

Family

ID=11040616

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9509345A Expired - Fee Related GB2289394B (en) 1994-05-09 1995-05-09 A ring network system

Country Status (1)

Country Link
GB (1) GB2289394B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6222848B1 (en) * 1997-12-22 2001-04-24 Nortel Networks Limited Gigabit ethernet interface to synchronous optical network (SONET) ring
GB2363548A (en) * 2000-06-15 2001-12-19 Int Computers Ltd Computer systems, in particular virtual private networks
US7096961B2 (en) 2003-04-29 2006-08-29 Schlumberger Technology Corporation Method and apparatus for performing diagnostics in a wellbore operation

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4700018A (en) * 1985-09-11 1987-10-13 Siemens Aktiengesellschaft Method and circuit arrangement for the transmission of data signals between two control devices belonging to a loop system
US4982400A (en) * 1988-12-29 1991-01-01 Intel Corporation Ring bus hub for a star local area network

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4700018A (en) * 1985-09-11 1987-10-13 Siemens Aktiengesellschaft Method and circuit arrangement for the transmission of data signals between two control devices belonging to a loop system
US4982400A (en) * 1988-12-29 1991-01-01 Intel Corporation Ring bus hub for a star local area network

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
IBM Technical Disclosure Bulletin Vol. 15 No. 2 July 1972 pages 380-382 *

Also Published As

Publication number Publication date
GB9509345D0 (en) 1995-06-28
GB2289394A (en) 1995-11-15

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20130509