GB1482860A - Data communication system - Google Patents

Data communication system

Info

Publication number
GB1482860A
GB1482860A GB4480375A GB4480375A GB1482860A GB 1482860 A GB1482860 A GB 1482860A GB 4480375 A GB4480375 A GB 4480375A GB 4480375 A GB4480375 A GB 4480375A GB 1482860 A GB1482860 A GB 1482860A
Authority
GB
United Kingdom
Prior art keywords
gate
terminals
data
modulator
station
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
GB4480375A
Other languages
English (en)
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.)
International Business Machines Corp
Original Assignee
International Business Machines 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 International Business Machines Corp filed Critical International Business Machines Corp
Publication of GB1482860A publication Critical patent/GB1482860A/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]
    • H04L12/42—Loop networks
    • H04L12/423—Loop networks with centralised control, e.g. polling

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Communication Control (AREA)
  • Small-Scale Networks (AREA)
GB4480375A 1975-01-16 1975-10-30 Data communication system Expired GB1482860A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US54154175A 1975-01-16 1975-01-16

Publications (1)

Publication Number Publication Date
GB1482860A true GB1482860A (en) 1977-08-17

Family

ID=24160018

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4480375A Expired GB1482860A (en) 1975-01-16 1975-10-30 Data communication system

Country Status (4)

Country Link
JP (1) JPS5840859B2 (enExample)
DE (1) DE2543555A1 (enExample)
FR (1) FR2298239A1 (enExample)
GB (1) GB1482860A (enExample)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4422148A (en) 1979-10-30 1983-12-20 Pitney Bowes Inc. Electronic postage meter having plural computing systems
US4498187A (en) * 1979-10-30 1985-02-05 Pitney Bowes Inc. Electronic postage meter having plural computing systems
US4525785A (en) * 1979-10-30 1985-06-25 Pitney Bowes Inc. Electronic postage meter having plural computing system

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4322854A (en) * 1979-05-18 1982-03-30 Allan B. Bundens Data communications terminal
JPS58127676U (ja) * 1982-02-19 1983-08-30 ソニー株式会社 端子插入案内装置

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2226077A6 (en) * 1969-05-16 1974-11-08 Ibm France Data transmission between peripherals and central data processor - using main transmission channel and secondary channels connected to peripherals

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4422148A (en) 1979-10-30 1983-12-20 Pitney Bowes Inc. Electronic postage meter having plural computing systems
US4498187A (en) * 1979-10-30 1985-02-05 Pitney Bowes Inc. Electronic postage meter having plural computing systems
US4525785A (en) * 1979-10-30 1985-06-25 Pitney Bowes Inc. Electronic postage meter having plural computing system

Also Published As

Publication number Publication date
FR2298239B1 (enExample) 1978-05-12
DE2543555A1 (de) 1976-07-22
JPS5190506A (en) 1976-08-09
FR2298239A1 (fr) 1976-08-13
JPS5840859B2 (ja) 1983-09-08

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Legal Events

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