CA996691A - Tow wire, full duplex data transmission system - Google Patents

Tow wire, full duplex data transmission system

Info

Publication number
CA996691A
CA996691A CA211,515A CA211515A CA996691A CA 996691 A CA996691 A CA 996691A CA 211515 A CA211515 A CA 211515A CA 996691 A CA996691 A CA 996691A
Authority
CA
Canada
Prior art keywords
data transmission
transmission system
full duplex
duplex data
tow wire
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
CA211,515A
Other languages
English (en)
Other versions
CA211515S (en
Inventor
Klaas Korver
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.)
Nortel Networks Ltd
Original Assignee
Northern Electric Co Ltd
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 Northern Electric Co Ltd filed Critical Northern Electric Co Ltd
Priority to CA211,515A priority Critical patent/CA996691A/en
Priority to GB4061475A priority patent/GB1522682A/en
Priority to NL7511655A priority patent/NL180799C/xx
Priority to IT2822575A priority patent/IT1043321B/it
Priority to FR7531587A priority patent/FR2331222A1/fr
Priority to JP12334975A priority patent/JPS5172201A/ja
Priority to SE7511637A priority patent/SE402510B/sv
Priority to DE19752546422 priority patent/DE2546422C2/de
Application granted granted Critical
Publication of CA996691A publication Critical patent/CA996691A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M9/00—Arrangements for interconnection not involving centralised switching
    • H04M9/002—Arrangements for interconnection not involving centralised switching with subscriber controlled access to a line, i.e. key telephone systems
    • H04M9/003—Transmission of control signals from or to the key telephone set; signalling equipment at key telephone set, e.g. keyboard or display equipment
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Bidirectional Digital Transmission (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Dc Digital Transmission (AREA)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)
CA211,515A 1974-10-16 1974-10-16 Tow wire, full duplex data transmission system Expired CA996691A (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
CA211,515A CA996691A (en) 1974-10-16 1974-10-16 Tow wire, full duplex data transmission system
GB4061475A GB1522682A (en) 1974-10-16 1975-10-03 Two wire full duplex data transmission system
NL7511655A NL180799C (nl) 1974-10-16 1975-10-03 Telecommunicatiestelsel voor het uitwisselen van gegevens via tweedraadslijnen tussen een lokale telefoonpost en een aantal abonneetoestellen op verwijderde afstand.
IT2822575A IT1043321B (it) 1974-10-16 1975-10-13 Sistema bifilare in duplex totale per la trasmissione di dati
FR7531587A FR2331222A1 (fr) 1974-10-16 1975-10-15 Dispositif de transmission de donnees bidirectionnel bifilaire
JP12334975A JPS5172201A (en) 1974-10-16 1975-10-15 2 senshikizennijudeetadensohoho oyobi sochi
SE7511637A SE402510B (sv) 1974-10-16 1975-10-16 Sett att utbyta data mellan en lokal terminal och en avlegsen terminal via en tvatradig transmissionsledning samt apparat for genomforande av settet
DE19752546422 DE2546422C2 (de) 1974-10-16 1975-10-16 Zweidraht-Vollduplex-Datenübertragungsverfahren und Vorrichtung zur Ausführung des Verfahrens

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA211,515A CA996691A (en) 1974-10-16 1974-10-16 Tow wire, full duplex data transmission system

Publications (1)

Publication Number Publication Date
CA996691A true CA996691A (en) 1976-09-07

Family

ID=4101371

Family Applications (1)

Application Number Title Priority Date Filing Date
CA211,515A Expired CA996691A (en) 1974-10-16 1974-10-16 Tow wire, full duplex data transmission system

Country Status (8)

Country Link
JP (1) JPS5172201A (sv)
CA (1) CA996691A (sv)
DE (1) DE2546422C2 (sv)
FR (1) FR2331222A1 (sv)
GB (1) GB1522682A (sv)
IT (1) IT1043321B (sv)
NL (1) NL180799C (sv)
SE (1) SE402510B (sv)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5474602A (en) * 1977-11-28 1979-06-14 Hitachi Ltd Photo delivery unit of synchronous type
JPS5814104B2 (ja) * 1978-04-28 1983-03-17 株式会社東芝 情報伝送方式
US4287596A (en) * 1979-11-26 1981-09-01 Ncr Corporation Data recovery system for use with a high speed serial link between two subsystems in a data processing system
EP0059493B1 (de) * 1981-02-27 1985-01-23 BBC Aktiengesellschaft Brown, Boveri & Cie. Einrichtung zur Decodierung eines Biphase-codierten Signals sowie Verwendung der Einrichtung
JPS58151154A (ja) * 1982-03-03 1983-09-08 Hitachi Ltd 装置間伝送方式
US4584719A (en) * 1984-08-24 1986-04-22 System Development Corp. Fiber optic workstation datalink interface

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1216759A (en) * 1968-05-23 1970-12-23 Standard Telephones Cables Ltd Subscriber subset for p.c.m. telephone system
GB1182363A (en) * 1968-07-26 1970-02-25 Standard Telephones Cables Ltd Subscriber Subset for PCM Telephone System
GB1229149A (sv) * 1969-07-28 1971-04-21
US3637939A (en) * 1970-05-07 1972-01-25 Bell Telephone Labor Inc Line status control for electronic key telephone system

Also Published As

Publication number Publication date
IT1043321B (it) 1980-02-20
SE7511637L (sv) 1976-04-20
DE2546422A1 (de) 1976-04-22
DE2546422C2 (de) 1986-12-18
FR2331222B1 (sv) 1981-10-09
JPS5172201A (en) 1976-06-22
FR2331222A1 (fr) 1977-06-03
NL180799B (nl) 1986-11-17
GB1522682A (en) 1978-08-23
SE402510B (sv) 1978-07-03
NL7511655A (nl) 1976-04-21
NL180799C (nl) 1987-04-16

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