CA1243787A - Variable bandwidth switching system - Google Patents

Variable bandwidth switching system

Info

Publication number
CA1243787A
CA1243787A CA000453459A CA453459A CA1243787A CA 1243787 A CA1243787 A CA 1243787A CA 000453459 A CA000453459 A CA 000453459A CA 453459 A CA453459 A CA 453459A CA 1243787 A CA1243787 A CA 1243787A
Authority
CA
Canada
Prior art keywords
data
information
network
highway
node
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
CA000453459A
Other languages
English (en)
French (fr)
Inventor
Michael D. Teener
Keith D. Walter
Richard E. Schumaker
Edward S. Marrone
Patrick N. Godding
Stillman F. Gates
Everett O. Rigsbee, Iii
Gary A. Nelson
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.)
CXC CORP
Original Assignee
CXC CORP
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
Priority claimed from US06/491,551 external-priority patent/US4587651A/en
Priority claimed from US06/582,069 external-priority patent/US4598397A/en
Priority claimed from US06/582,182 external-priority patent/US4755988A/en
Application filed by CXC CORP filed Critical CXC CORP
Application granted granted Critical
Publication of CA1243787A publication Critical patent/CA1243787A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/22—Arrangements affording multiple use of the transmission path using time-division multiplexing
    • H04L5/24—Arrangements affording multiple use of the transmission path using time-division multiplexing with start-stop synchronous converters
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/38—Synchronous or start-stop systems, e.g. for Baudot code
    • H04L25/40—Transmitting circuits; Receiving circuits
    • H04L25/49—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems
    • H04L25/4904—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems using self-synchronising codes, e.g. split-phase codes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M9/00—Arrangements for interconnection not involving centralised switching
    • H04M9/02—Arrangements for interconnection not involving centralised switching involving a common line for all parties
    • H04M9/022—Multiplex systems
    • H04M9/025—Time division multiplex systems, e.g. loop systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13332—Broadband, CATV, dynamic bandwidth allocation

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Time-Division Multiplex Systems (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
  • Liquid Crystal Substances (AREA)
  • Optical Communication System (AREA)
  • Mobile Radio Communication Systems (AREA)
CA000453459A 1983-05-04 1984-05-03 Variable bandwidth switching system Expired CA1243787A (en)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
US06/491,551 US4587651A (en) 1983-05-04 1983-05-04 Distributed variable bandwidth switch for voice, data, and image communications
US491,551 1983-05-04
US582,182 1984-02-21
US06/582,069 US4598397A (en) 1984-02-21 1984-02-21 Microtelephone controller
US06/582,182 US4755988A (en) 1983-05-04 1984-02-21 Data communications switching device having multiple switches operating at plural selectable data rates
US582,069 1996-01-02

Publications (1)

Publication Number Publication Date
CA1243787A true CA1243787A (en) 1988-10-25

Family

ID=27413904

Family Applications (2)

Application Number Title Priority Date Filing Date
CA000453459A Expired CA1243787A (en) 1983-05-04 1984-05-03 Variable bandwidth switching system
CA000453460A Expired CA1242819A (en) 1983-05-04 1984-05-03 Integrated voice/data/control switching system

Family Applications After (1)

Application Number Title Priority Date Filing Date
CA000453460A Expired CA1242819A (en) 1983-05-04 1984-05-03 Integrated voice/data/control switching system

Country Status (5)

Country Link
EP (2) EP0141852A4 (es)
AU (2) AU570983B2 (es)
CA (2) CA1243787A (es)
ES (2) ES532231A0 (es)
WO (1) WO1984004435A1 (es)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8504810D0 (en) * 1985-02-25 1985-03-27 Gen Electric Co Plc Local communication system
DE3572103D1 (en) * 1985-02-28 1989-09-07 Ibm Communication system comprising overlayed multiple-access transmission networks
GB8515347D0 (en) * 1985-06-18 1985-07-17 Plessey Co Plc Telecommunications exchanges
GB2232326A (en) * 1989-05-26 1990-12-05 Philips Electronic Associated Data transmission over a tdm duplex frequency channel
US5164960A (en) * 1990-02-15 1992-11-17 Advanced Micro Devices Inc. Medium attachment unit for use with twisted pair local area network
DE4134360C1 (es) * 1991-10-17 1993-04-15 Ant Nachrichtentechnik Gmbh, 7150 Backnang, De
JP3664050B2 (ja) * 2000-06-28 2005-06-22 日本電気株式会社 接続復旧装置
US7675867B1 (en) * 2006-04-19 2010-03-09 Owl Computing Technologies, Inc. One-way data transfer system with built-in data verification mechanism
WO2012012266A2 (en) 2010-07-19 2012-01-26 Owl Computing Technologies. Inc. Secure acknowledgment device for one-way data transfer system

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4251865A (en) * 1978-12-08 1981-02-17 Motorola, Inc. Polling system for a duplex communications link
US4271507A (en) * 1979-06-07 1981-06-02 Ford Motor Company Communication broadcast channel interface
US4445213A (en) * 1979-07-31 1984-04-24 Bell Telephone Laboratories, Incorporated Communication line interface for controlling data information having differing transmission characteristics
US4251880A (en) * 1979-07-31 1981-02-17 Bell Telephone Laboratories, Incorporated Digital loop switch for controlling data information having differing transmission characteristics
NL8104368A (nl) * 1981-09-23 1983-04-18 Philips Nv Digitale telefooncentrale met voorzieningen voor het behandelen van pakketgeschakelde data.
US4445116A (en) * 1982-03-05 1984-04-24 Burroughs Corporation Method for allocating bandwidth between stations in a local area network

Also Published As

Publication number Publication date
EP0142551A4 (en) 1988-06-16
AU2965584A (en) 1984-11-19
ES8503184A1 (es) 1985-02-01
CA1242819A (en) 1988-10-04
ES532231A0 (es) 1985-02-01
AU571236B2 (en) 1988-04-14
EP0141852A4 (en) 1988-06-16
EP0142551A1 (en) 1985-05-29
AU2963384A (en) 1984-11-19
ES532232A0 (es) 1986-02-01
WO1984004435A1 (en) 1984-11-08
AU570983B2 (en) 1988-03-31
ES8604707A1 (es) 1986-02-01
EP0141852A1 (en) 1985-05-22

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