IT1043321B - TWO-WIRE DUPLEX TOTAL SYSTEM FOR DATA TRANSMISSION - Google Patents

TWO-WIRE DUPLEX TOTAL SYSTEM FOR DATA TRANSMISSION

Info

Publication number
IT1043321B
IT1043321B IT2822575A IT2822575A IT1043321B IT 1043321 B IT1043321 B IT 1043321B IT 2822575 A IT2822575 A IT 2822575A IT 2822575 A IT2822575 A IT 2822575A IT 1043321 B IT1043321 B IT 1043321B
Authority
IT
Italy
Prior art keywords
data transmission
total system
wire duplex
duplex total
wire
Prior art date
Application number
IT2822575A
Other languages
Italian (it)
Original Assignee
Northern Electric Co
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 filed Critical Northern Electric Co
Application granted granted Critical
Publication of IT1043321B publication Critical patent/IT1043321B/en

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)
IT2822575A 1974-10-16 1975-10-13 TWO-WIRE DUPLEX TOTAL SYSTEM FOR DATA TRANSMISSION IT1043321B (en)

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
IT1043321B true IT1043321B (en) 1980-02-20

Family

ID=4101371

Family Applications (1)

Application Number Title Priority Date Filing Date
IT2822575A IT1043321B (en) 1974-10-16 1975-10-13 TWO-WIRE DUPLEX TOTAL SYSTEM FOR DATA TRANSMISSION

Country Status (8)

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

Families Citing this family (7)

* 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 (en) * 1978-04-28 1983-03-17 株式会社東芝 Information transmission method
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
DE3261985D1 (en) * 1981-02-27 1985-03-07 Bbc Brown Boveri & Cie Arrangement for decoding a biphase coded signal, as well as utilisation of the arrangement
JPS58151154A (en) * 1982-03-03 1983-09-08 Hitachi Ltd Transmission system between devices
US4584719A (en) * 1984-08-24 1986-04-22 System Development Corp. Fiber optic workstation datalink interface
CN115314071B (en) * 2022-08-12 2024-08-06 程艳 Full duplex bidirectional analog front-end hybrid transceiver

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 (en) * 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
CA996691A (en) 1976-09-07
NL180799C (en) 1987-04-16
FR2331222A1 (en) 1977-06-03
SE402510B (en) 1978-07-03
FR2331222B1 (en) 1981-10-09
GB1522682A (en) 1978-08-23
DE2546422C2 (en) 1986-12-18
JPS5172201A (en) 1976-06-22
NL180799B (en) 1986-11-17
NL7511655A (en) 1976-04-21
SE7511637L (en) 1976-04-20
DE2546422A1 (en) 1976-04-22

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