CA1231381A - Communication network - Google Patents

Communication network

Info

Publication number
CA1231381A
CA1231381A CA000452063A CA452063A CA1231381A CA 1231381 A CA1231381 A CA 1231381A CA 000452063 A CA000452063 A CA 000452063A CA 452063 A CA452063 A CA 452063A CA 1231381 A CA1231381 A CA 1231381A
Authority
CA
Canada
Prior art keywords
hub
signals
network
interface
processor
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
Application number
CA000452063A
Other languages
English (en)
French (fr)
Inventor
Cyrus F. Ault
Clinton D. Gibler
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.)
AT&T Inc
Original Assignee
American Telephone and Telegraph Co Inc
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 American Telephone and Telegraph Co Inc filed Critical American Telephone and Telegraph Co Inc
Priority to CA000513976A priority Critical patent/CA1230382A/en
Priority to CA000513977A priority patent/CA1230383A/en
Application granted granted Critical
Publication of CA1231381A publication Critical patent/CA1231381A/en
Expired 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
    • H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
    • H04B10/075—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal
    • H04B10/077—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal using a supervisory or additional signal
    • H04B10/0773—Network aspects, e.g. central monitoring of transmission parameters
    • 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
    • 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]
    • H04L12/44—Star or tree networks

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Computing Systems (AREA)
  • Small-Scale Networks (AREA)
  • Optical Communication System (AREA)
CA000452063A 1983-05-12 1984-04-16 Communication network Expired CA1231381A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CA000513976A CA1230382A (en) 1983-05-12 1986-07-16 Communication network
CA000513977A CA1230383A (en) 1983-05-12 1986-07-16 Communication network

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US49410183A 1983-05-12 1983-05-12
US494,101 1983-05-12

Related Child Applications (1)

Application Number Title Priority Date Filing Date
CA000513976A Division CA1230382A (en) 1983-05-12 1986-07-16 Communication network

Publications (1)

Publication Number Publication Date
CA1231381A true CA1231381A (en) 1988-01-12

Family

ID=23963046

Family Applications (3)

Application Number Title Priority Date Filing Date
CA000452063A Expired CA1231381A (en) 1983-05-12 1984-04-16 Communication network
CA000513976A Expired CA1230382A (en) 1983-05-12 1986-07-16 Communication network
CA000513977A Expired CA1230383A (en) 1983-05-12 1986-07-16 Communication network

Family Applications After (2)

Application Number Title Priority Date Filing Date
CA000513976A Expired CA1230382A (en) 1983-05-12 1986-07-16 Communication network
CA000513977A Expired CA1230383A (en) 1983-05-12 1986-07-16 Communication network

Country Status (6)

Country Link
US (1) US4731880A (2)
EP (1) EP0152407B1 (2)
JP (1) JPS60501286A (2)
CA (3) CA1231381A (2)
DE (1) DE3467843D1 (2)
WO (1) WO1984004638A1 (2)

Families Citing this family (41)

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EP0216214B1 (de) * 1985-09-25 1991-05-08 Siemens Aktiengesellschaft Verfahren zum automatischen Pegelabgleich in einem lokalen Netz, insbesondere für eine Mehrrechneranordnung, mit einem Bussystem mit Lichtwellenleitern, zum Zwecke einer Kollisionserkennung
US4766530A (en) * 1986-11-24 1988-08-23 Westinghouse Electric Corp. Token passing scheme for a predetermined configuration local area network
US4914648A (en) * 1987-03-26 1990-04-03 American Telephone And Telegraph Company Multichannel, multihop lightwave communication system
US4850045A (en) * 1987-11-02 1989-07-18 Amp Incorporated Method and apparatus for testing fiber optic hubs
US4970722A (en) * 1987-11-02 1990-11-13 Amp Incorporated Broadband local area network
US4998247A (en) * 1988-06-10 1991-03-05 Irvine Halliday David Active star-configured local area network
US5031230A (en) * 1988-10-24 1991-07-09 Simulcomm Partnership Frequency, phase and modulation control system which is especially useful in simulcast transmission systems
JPH02199942A (ja) * 1989-01-27 1990-08-08 Matsushita Electric Ind Co Ltd 光通信装置
DE68914151T2 (de) * 1989-08-11 1994-07-07 Hewlett Packard Co Netzwerk-Sender-Empfänger.
FR2664112B1 (fr) * 1990-06-29 1993-05-28 Abiven Jacques Procede de reglage de niveau d'emission de terminaux dans un reseau de transmission a l'alternat.
US5285449A (en) * 1991-04-03 1994-02-08 International Business Machines Corporation Protocol for hybrid local area networks
US5309475A (en) * 1991-10-01 1994-05-03 Abb Power T&D Company Inc. Data interchange network
US5251054A (en) * 1991-10-24 1993-10-05 General Motors Corporation LAN electro-optical interface
US5450603A (en) * 1992-12-18 1995-09-12 Xerox Corporation SIMD architecture with transfer register or value source circuitry connected to bus
US5394390A (en) * 1993-10-29 1995-02-28 International Business Machines Corporation FDDI network test adapter history store circuit (HSC)
ES2164081T3 (es) * 1994-02-11 2002-02-16 Cit Alcatel Protocolo de acceso.
US6532543B1 (en) * 1996-08-13 2003-03-11 Angel Secure Networks, Inc. System and method for installing an auditable secure network
US6918038B1 (en) 1996-08-13 2005-07-12 Angel Secure Networks, Inc. System and method for installing an auditable secure network
US6188675B1 (en) * 1996-08-23 2001-02-13 International Business Machines Corporation System and method for self-identifying and configuring the nodes of a network
JPH10164018A (ja) * 1996-11-26 1998-06-19 Fujitsu Ltd 光送信機並びに該光送信機を有する端局装置及び光通信システム
US6304357B1 (en) * 1997-03-13 2001-10-16 Hitachi, Ltd. Optical receiver
CA2315160A1 (en) * 1997-12-15 1999-06-24 David P. Phillips Method and apparatus for power line exchange protocol
DE19810292A1 (de) * 1998-03-10 1999-09-16 Bayerische Motoren Werke Ag Datenbus für mehrere Teilnehmer
US6882620B1 (en) * 1998-05-27 2005-04-19 Emc Corporation Token exchange system with fault protection
US7475428B2 (en) * 2002-06-20 2009-01-06 Angel Secure Networks, Inc. Secure detection network system
GB2384947B (en) * 2002-02-01 2006-01-18 Sendo Int Ltd Enabling and/or inhibiting an operation of a wireless communicatons unit
EP1791276B1 (en) * 2005-11-28 2016-01-20 Alcatel Lucent Burst mode optical receiver
US7929866B2 (en) * 2005-11-28 2011-04-19 Alcatel Lucent Passive optical network media access controller assisted clock recovery
US7865088B2 (en) * 2006-05-12 2011-01-04 Alcatel Lucent Burst mode optical receiver
US7764886B2 (en) * 2005-11-28 2010-07-27 Alcatel Lucent Burst mode optical receiver
US7606490B2 (en) * 2005-12-01 2009-10-20 Alcatel Lucent Adaptive preamble adjustment for burst-mode optical systems
US7792137B2 (en) * 2006-07-05 2010-09-07 Abidanet, Llc Self-organized and self-managed ad hoc communications network
US20100256823A1 (en) * 2009-04-04 2010-10-07 Cisco Technology, Inc. Mechanism for On-Demand Environmental Services Based on Network Activity
WO2011062570A1 (en) * 2009-11-17 2011-05-26 Thomson Licensing Reuse of a switch ic as a step attenuator
US8930717B2 (en) 2011-03-01 2015-01-06 Angel Secure Networks, Inc. Secure processing module and method for making the same
US9058482B2 (en) 2011-03-01 2015-06-16 Angel Secure Networks, Inc. Controlling user access to electronic resources without password
US9355228B2 (en) 2012-07-13 2016-05-31 Angel Secure Networks, Inc. System and method for policy driven protection of remote computing environments
US9390280B2 (en) 2012-09-16 2016-07-12 Angel Secure Networks, Inc. System and method for obtaining keys to access protected information
US9270660B2 (en) 2012-11-25 2016-02-23 Angel Secure Networks, Inc. System and method for using a separate device to facilitate authentication
US9712339B2 (en) * 2014-04-24 2017-07-18 Infineon Technologies Ag Bus architecture and access method for plastic waveguide
US9648399B2 (en) 2014-05-08 2017-05-09 Infineon Technologies Ag System having plastic waveguides

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US31319A (en) * 1861-02-05 Improvement in hoop-locks
FR2068850A5 (2) * 1969-10-03 1971-09-03 Cit Alcatel
USRE31319E (en) 1971-08-27 1983-07-19 Bell Telephone Laboratories, Incorporated Digital data communication system
US3747845A (en) * 1972-06-23 1973-07-24 Eugene G Portuesi Cadillac Speed and distance computer for bicycles
US3925782A (en) * 1975-02-28 1975-12-09 Us Army Adaptive RF power output control for net radios
CA1059718A (en) * 1975-03-12 1979-08-07 Timothy S. Dougherty Advancing and working thermoplastic materials
US4107518A (en) * 1977-01-26 1978-08-15 Sperry Rand Corporation Optical repeater
US4227260A (en) * 1978-11-06 1980-10-07 The Singer Company Electronic active star element for an optical data transmission system
US4347498A (en) * 1979-11-21 1982-08-31 International Business Machines Corporation Method and means for demand accessing and broadcast transmission among ports in a distributed star network
JPS5687948A (en) * 1979-12-19 1981-07-17 Fujitsu Ltd Optical communication system
DE3068177D1 (en) * 1980-06-19 1984-07-19 Ibm Flow control mechanism for block switching nodes
US4366565A (en) * 1980-07-29 1982-12-28 Herskowitz Gerald J Local area network optical fiber data communication
JPS57104339A (en) * 1980-12-19 1982-06-29 Ricoh Co Ltd Optical communication network
JPS57190436A (en) * 1981-05-19 1982-11-24 Fuji Electric Co Ltd Adjusting method for optical transmitting line
US4531238A (en) * 1981-12-03 1985-07-23 Xerox Corporation Statistical contention control for star configured communication networks
US4481626A (en) * 1982-05-05 1984-11-06 Xerox Corporation Transceiver multiplexor

Also Published As

Publication number Publication date
DE3467843D1 (en) 1988-01-07
EP0152407A1 (en) 1985-08-28
JPH0414897B2 (2) 1992-03-16
US4731880A (en) 1988-03-15
CA1230382A (en) 1987-12-15
JPS60501286A (ja) 1985-08-08
WO1984004638A1 (en) 1984-11-22
EP0152407B1 (en) 1987-11-25
CA1230383A (en) 1987-12-15

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Legal Events

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