NL6709777A - - Google Patents

Info

Publication number
NL6709777A
NL6709777A NL6709777A NL6709777A NL6709777A NL 6709777 A NL6709777 A NL 6709777A NL 6709777 A NL6709777 A NL 6709777A NL 6709777 A NL6709777 A NL 6709777A NL 6709777 A NL6709777 A NL 6709777A
Authority
NL
Netherlands
Application number
NL6709777A
Other versions
NL156002B (nl
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 filed Critical
Publication of NL6709777A publication Critical patent/NL6709777A/xx
Publication of NL156002B publication Critical patent/NL156002B/nl

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q1/00—Details of selecting apparatus or arrangements
    • H04Q1/18—Electrical details
    • H04Q1/30—Signalling arrangements; Manipulation of signalling currents
    • H04Q1/38—Signalling arrangements; Manipulation of signalling currents using combinations of direct currents of different amplitudes or polarities over line conductors or combination of line conductors
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/14—Two-way operation using the same type of signal, i.e. duplex
    • H04L5/1423—Two-way operation using the same type of signal, i.e. duplex for simultaneous baseband signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Dc Digital Transmission (AREA)
NL6709777.A 1966-07-14 1967-07-14 Schakelinrichting voor het tweedraads tegelijkertijd in beide overdraagrichtingen overdragen van tekens tussen twee eindposten in een telecommunicatiestelsel. NL156002B (nl)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEST025638 1966-07-14
DEST026615 1967-03-11

Publications (2)

Publication Number Publication Date
NL6709777A true NL6709777A (nl) 1968-01-15
NL156002B NL156002B (nl) 1978-02-15

Family

ID=25994427

Family Applications (1)

Application Number Title Priority Date Filing Date
NL6709777.A NL156002B (nl) 1966-07-14 1967-07-14 Schakelinrichting voor het tweedraads tegelijkertijd in beide overdraagrichtingen overdragen van tekens tussen twee eindposten in een telecommunicatiestelsel.

Country Status (7)

Country Link
US (1) US3519743A (nl)
BE (1) BE701353A (nl)
CH (1) CH477783A (nl)
DE (2) DE1487984A1 (nl)
GB (1) GB1134371A (nl)
NL (1) NL156002B (nl)
SE (1) SE349913B (nl)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3618025A (en) * 1968-09-20 1971-11-02 Nippon Electric Co Pulse phase control apparatus for pulse communications systems
DE1814054C3 (de) * 1968-12-11 1974-11-28 Siemens Ag, 1000 Berlin Und 8000 Muenchen Verfahren zum Steuern von Einfachstrom-Doppelstrom-Umsetzerschaltungen in zentralgesteuerten Fernschreibwählvermittlungsanlageri
DE2021339C3 (de) * 1970-04-30 1980-01-03 Siemens Ag, 1000 Berlin Und 8000 Muenchen Anordnung zum Übertragen von binären Signalen über eine geringwertige Übertragungsleitung
FR2134747A5 (nl) * 1971-04-19 1972-12-08 Cit Alcatel
US3943283A (en) * 1974-06-17 1976-03-09 International Business Machines Corporation Bidirectional single wire data transmission and wrap control
US3993867A (en) * 1974-10-15 1976-11-23 Motorola, Inc. Digital single signal line full duplex method and apparatus
USRE30111E (en) * 1974-10-15 1979-10-09 Motorola, Inc. Digital single signal line full duplex method and apparatus
US3936602A (en) * 1974-10-23 1976-02-03 Northern Electric Company Limited Full duplex data transmission system using two speeds of diphase signal for simplified sync
US3943284A (en) * 1975-02-18 1976-03-09 Burroughs Corporation Digital data communication system featuring multi level asynchronous duplex operation
IT1116705B (it) * 1977-01-14 1986-02-10 Cselt Centro Studi Lab Telecom Perfezionamenti ai sistemi di rice trasmissione di segnali
US4160873A (en) * 1977-10-31 1979-07-10 Motorola, Inc. Level control circuitry for two way communication system
US4581487A (en) * 1984-07-11 1986-04-08 Itt Corporation Universal DC feed for telephone line and trunk circuits

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2496372A (en) * 1943-06-12 1950-02-07 Barrett Sidney Alfred Two-way polar telegraph system
US2569926A (en) * 1949-04-12 1951-10-02 American Telephone & Telegraph Two-wire double commutation telegraph system
US2802050A (en) * 1955-05-10 1957-08-06 Bell Telephone Labor Inc Telegraph transmission system

Also Published As

Publication number Publication date
DE1512974B2 (de) 1971-02-18
GB1134371A (en) 1968-11-20
DE1512974A1 (de) 1969-05-08
CH477783A (de) 1969-08-31
NL156002B (nl) 1978-02-15
BE701353A (nl) 1968-01-15
SE349913B (nl) 1972-10-09
DE1487984A1 (de) 1969-03-13
US3519743A (en) 1970-07-07

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Legal Events

Date Code Title Description
V1 Lapsed because of non-payment of the annual fee
NL80 Abbreviated name of patent owner mentioned of already nullified patent

Owner name: INT STAND EL