DE3675198D1 - Datenverarbeitungssystem fuer ein lokales netz. - Google Patents

Datenverarbeitungssystem fuer ein lokales netz.

Info

Publication number
DE3675198D1
DE3675198D1 DE8686905521T DE3675198T DE3675198D1 DE 3675198 D1 DE3675198 D1 DE 3675198D1 DE 8686905521 T DE8686905521 T DE 8686905521T DE 3675198 T DE3675198 T DE 3675198T DE 3675198 D1 DE3675198 D1 DE 3675198D1
Authority
DE
Germany
Prior art keywords
data processing
processing system
local network
local
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 - Lifetime
Application number
DE8686905521T
Other languages
English (en)
Inventor
J Girard
Frank Hines
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.)
NCR International Inc
Original Assignee
NCR 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
Application filed by NCR Corp filed Critical NCR Corp
Application granted granted Critical
Publication of DE3675198D1 publication Critical patent/DE3675198D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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]
    • H04L12/40—Bus networks
    • H04L12/40006—Architecture of a communication node
    • H04L12/40013—Details regarding a bus controller
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
    • G06F13/14—Handling requests for interconnection or transfer
    • G06F13/36—Handling requests for interconnection or transfer for access to common bus or bus system
    • G06F13/362—Handling requests for interconnection or transfer for access to common bus or bus system with centralised access control
    • G06F13/364—Handling requests for interconnection or transfer for access to common bus or bus system with centralised access control using independent requests or grants, e.g. using separated request and grant lines
    • 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
    • H04L12/407—Bus networks with decentralised control
    • H04L12/413—Bus networks with decentralised control with random access, e.g. carrier-sense multiple-access with collision detection [CSMA-CD]

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Small-Scale Networks (AREA)
  • Communication Control (AREA)
DE8686905521T 1985-09-03 1986-08-15 Datenverarbeitungssystem fuer ein lokales netz. Expired - Lifetime DE3675198D1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US06/772,226 US4730250A (en) 1985-09-03 1985-09-03 Local area network processing system
PCT/US1986/001699 WO1987001544A1 (en) 1985-09-03 1986-08-15 Data processing system for a local area network

Publications (1)

Publication Number Publication Date
DE3675198D1 true DE3675198D1 (de) 1990-11-29

Family

ID=25094365

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8686905521T Expired - Lifetime DE3675198D1 (de) 1985-09-03 1986-08-15 Datenverarbeitungssystem fuer ein lokales netz.

Country Status (6)

Country Link
US (1) US4730250A (de)
EP (1) EP0235253B1 (de)
JP (1) JPS63500762A (de)
CA (1) CA1254664A (de)
DE (1) DE3675198D1 (de)
WO (1) WO1987001544A1 (de)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4890222A (en) * 1984-12-17 1989-12-26 Honeywell Inc. Apparatus for substantially syncronizing the timing subsystems of the physical modules of a local area network
JPS62197850A (ja) * 1986-02-26 1987-09-01 Mitsubishi Electric Corp ロ−カルエリアネツトワ−ク制御装置
US4803681A (en) * 1986-07-08 1989-02-07 Nec Corporation Data transmission control system
US4835674A (en) * 1986-07-28 1989-05-30 Bull Hn Information Systems Inc. Computer network system for multiple processing elements
US4831620A (en) * 1986-07-28 1989-05-16 Bull Hn Information Systems Inc. Controller for controlling multiple LAN types
US4962378A (en) * 1987-11-09 1990-10-09 Ncr Corporation Multi-user serial bus system
US5023891A (en) 1989-07-25 1991-06-11 Sf2 Corporation Method and circuit for decoding a Manchester code signal
JP2695987B2 (ja) * 1990-03-22 1998-01-14 エイイージー シュナイダー オートメイション，インコーポレイテッド 制御システム

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4063220A (en) * 1975-03-31 1977-12-13 Xerox Corporation Multipoint data communication system with collision detection
US4034346A (en) * 1975-10-15 1977-07-05 Compagnie Honeywell Bull (Societe Anonyme) Interface for establishing communications between a data-processing unit and a plurality of stations
US4301525A (en) * 1977-03-30 1981-11-17 Lanier Business Products, Inc. Central control system for dictation
US4200930A (en) * 1977-05-23 1980-04-29 Burroughs Corporation Adapter cluster module for data communications subsystem
US4151590A (en) * 1977-11-15 1979-04-24 Hokushin Electric Works, Ltd. Process control system
US4307446A (en) * 1979-05-02 1981-12-22 Burroughs Corporation Digital communication networks employing speed independent switches
US4380761A (en) * 1980-02-04 1983-04-19 Xerox Corporation Digital phase decoder with collision detection
US4453215A (en) * 1981-10-01 1984-06-05 Stratus Computer, Inc. Central processing apparatus for fault-tolerant computing
US4412326A (en) * 1981-10-23 1983-10-25 Bell Telephone Laboratories, Inc. Collision avoiding system, apparatus and protocol for a multiple access digital communications system including variable length packets
US4472712A (en) * 1982-03-05 1984-09-18 At&T Bell Laboratories Multipoint data communication system with local arbitration
US4464658A (en) * 1982-03-05 1984-08-07 At&T Laboratories Multipoint data communication system with collision detection
US4651316A (en) * 1983-07-11 1987-03-17 At&T Bell Laboratories Data link extension for data communication networks
US4620278A (en) * 1983-08-29 1986-10-28 Sperry Corporation Distributed bus arbitration according each bus user the ability to inhibit all new requests to arbitrate the bus, or to cancel its own pending request, and according the highest priority user the ability to stop the bus

Also Published As

Publication number Publication date
CA1254664A (en) 1989-05-23
EP0235253A1 (de) 1987-09-09
EP0235253B1 (de) 1990-10-24
WO1987001544A1 (en) 1987-03-12
JPS63500762A (ja) 1988-03-17
US4730250A (en) 1988-03-08

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: NCR INTERNATIONAL INC., DAYTON, OHIO, US

8328 Change in the person/name/address of the agent

Free format text: KAHLER, K., DIPL.-ING., 8948 MINDELHEIM KAECK, J., DIPL.-ING. DIPL.-WIRTSCH.-ING., 8910 LANDSBERG FIENER, J., PAT.-ANWAELTE, 8948 MINDELHEIM

8339 Ceased/non-payment of the annual fee