WO1998000925A3 - Communication method and apparatus - Google Patents

Communication method and apparatus Download PDF

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Publication number
WO1998000925A3
WO1998000925A3 PCT/NZ1997/000086 NZ9700086W WO9800925A3 WO 1998000925 A3 WO1998000925 A3 WO 1998000925A3 NZ 9700086 W NZ9700086 W NZ 9700086W WO 9800925 A3 WO9800925 A3 WO 9800925A3
Authority
WO
WIPO (PCT)
Prior art keywords
data
cpu
blocks
interface
cross connect
Prior art date
Application number
PCT/NZ1997/000086
Other languages
French (fr)
Other versions
WO1998000925A2 (en
Inventor
Peter David Atkins
Arnim Holger Littek
James Stephen Worthington
Original Assignee
Digi Tech Res And Dev Ltd
Peter David Atkins
Arnim Holger Littek
James Stephen Worthington
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 Digi Tech Res And Dev Ltd, Peter David Atkins, Arnim Holger Littek, James Stephen Worthington filed Critical Digi Tech Res And Dev Ltd
Priority to EP97928551A priority Critical patent/EP0909492A2/en
Priority to AU32787/97A priority patent/AU3278797A/en
Publication of WO1998000925A2 publication Critical patent/WO1998000925A2/en
Publication of WO1998000925A3 publication Critical patent/WO1998000925A3/en

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]
    • H04L12/40—Bus networks
    • H04L12/403—Bus networks with centralised control, e.g. polling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L43/00—Arrangements for monitoring or testing data switching networks

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Communication Control (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)

Abstract

A method of transmitting secondary data (63) over a communications link (44, 45, 46) which transmits blocks of primary data (57) in a data stream between a sending station (43, 47, 52) and a receiving station (43, 47, 52). Secondary data (63) is formatted according to a protocol other than that used to format the primary data and is inserted between the blocks of primary data. At a receiving station (43, 47, 52) the secondary data is extracted and the data stream is reinstated to its original form. An apparatus for effecting the method includes interface ports (70, 71) and a first in/first out interface (73) interconnected via a cross connect switch (72). A CPU (74) provides secondary data to the first in/first out interface to be inserted between blocks of primary data and routed via cross connect switch (72) to an interface port (70, 71). A watchdog means (75) monitors the CPU and controls the cross connect switch (72) to effect a direct connection between the interface ports (70, 71) if the CPU is inactive.
PCT/NZ1997/000086 1996-06-28 1997-06-27 Communication method and apparatus WO1998000925A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP97928551A EP0909492A2 (en) 1996-06-28 1997-06-27 Communication method and apparatus
AU32787/97A AU3278797A (en) 1996-06-28 1997-06-27 Communication method and apparatus

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NZ286908 1996-06-28
NZ28690896 1996-06-28

Publications (2)

Publication Number Publication Date
WO1998000925A2 WO1998000925A2 (en) 1998-01-08
WO1998000925A3 true WO1998000925A3 (en) 1998-05-28

Family

ID=19925807

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NZ1997/000086 WO1998000925A2 (en) 1996-06-28 1997-06-27 Communication method and apparatus

Country Status (4)

Country Link
EP (1) EP0909492A2 (en)
AU (2) AU2493697A (en)
CA (1) CA2259235A1 (en)
WO (1) WO1998000925A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016111580A (en) * 2014-12-09 2016-06-20 株式会社明電舎 Communication control system, communication control method, and communication frame data structure

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5121385A (en) * 1988-09-14 1992-06-09 Fujitsu Limited Highly efficient multiplexing system

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5121385A (en) * 1988-09-14 1992-06-09 Fujitsu Limited Highly efficient multiplexing system

Also Published As

Publication number Publication date
AU3278797A (en) 1998-01-21
AU2493697A (en) 1998-01-15
EP0909492A2 (en) 1999-04-21
WO1998000925A2 (en) 1998-01-08
CA2259235A1 (en) 1998-01-08

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