GB2146467B - Control networks - Google Patents

Control networks

Info

Publication number
GB2146467B
GB2146467B GB08422822A GB8422822A GB2146467B GB 2146467 B GB2146467 B GB 2146467B GB 08422822 A GB08422822 A GB 08422822A GB 8422822 A GB8422822 A GB 8422822A GB 2146467 B GB2146467 B GB 2146467B
Authority
GB
United Kingdom
Prior art keywords
control networks
networks
control
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
GB08422822A
Other versions
GB2146467A (en
GB8422822D0 (en
Inventor
Michael Frank Sellwood
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.)
British Telecommunications PLC
Original Assignee
British Telecommunications PLC
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 British Telecommunications PLC filed Critical British Telecommunications PLC
Publication of GB8422822D0 publication Critical patent/GB8422822D0/en
Publication of GB2146467A publication Critical patent/GB2146467A/en
Application granted granted Critical
Publication of GB2146467B publication Critical patent/GB2146467B/en
Expired 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
    • G06F13/38—Information transfer, e.g. on bus
    • G06F13/42—Bus transfer protocol, e.g. handshake; Synchronisation
    • G06F13/4204—Bus transfer protocol, e.g. handshake; Synchronisation on a parallel bus
    • G06F13/4208—Bus transfer protocol, e.g. handshake; Synchronisation on a parallel bus being a system bus, e.g. VME bus, Futurebus, Multibus
    • G06F13/4213—Bus transfer protocol, e.g. handshake; Synchronisation on a parallel bus being a system bus, e.g. VME bus, Futurebus, Multibus with asynchronous protocol
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
    • G11B19/02—Control of operating function, e.g. switching from recording to reproducing
    • G11B19/10—Control of operating function, e.g. switching from recording to reproducing by sensing presence or absence of record in accessible stored position or on turntable
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/002—Programmed access in sequence to a plurality of record carriers or indexed parts, e.g. tracks, thereof, e.g. for editing
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B31/00—Arrangements for the associated working of recording or reproducing apparatus with related apparatus
    • 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
    • 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
    • H04L12/40039—Details regarding the setting of the power status of a node according to activity on the bus
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00—Record carriers by type
    • G11B2220/20—Disc-shaped record carriers
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00—Record carriers by type
    • G11B2220/40—Combinations of multiple record carriers
    • G11B2220/41—Flat as opposed to hierarchical combination, e.g. library of tapes or discs, CD changer, or groups of record carriers that together store one title

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Theoretical Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Small-Scale Networks (AREA)
GB08422822A 1983-09-09 1984-09-10 Control networks Expired GB2146467B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB838324155A GB8324155D0 (en) 1983-09-09 1983-09-09 Control networks

Publications (3)

Publication Number Publication Date
GB8422822D0 GB8422822D0 (en) 1984-10-17
GB2146467A GB2146467A (en) 1985-04-17
GB2146467B true GB2146467B (en) 1987-02-18

Family

ID=10548523

Family Applications (2)

Application Number Title Priority Date Filing Date
GB838324155A Pending GB8324155D0 (en) 1983-09-09 1983-09-09 Control networks
GB08422822A Expired GB2146467B (en) 1983-09-09 1984-09-10 Control networks

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB838324155A Pending GB8324155D0 (en) 1983-09-09 1983-09-09 Control networks

Country Status (1)

Country Link
GB (2) GB8324155D0 (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3972023A (en) * 1974-12-30 1976-07-27 International Business Machines Corporation I/O data transfer control system
US4067059A (en) * 1976-01-29 1978-01-03 Sperry Rand Corporation Shared direct memory access controller
GB1544005A (en) * 1977-01-10 1979-04-11 Sundelin R Price display unit

Also Published As

Publication number Publication date
GB8324155D0 (en) 1983-10-12
GB2146467A (en) 1985-04-17
GB8422822D0 (en) 1984-10-17

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20020910