NL83200C - - Google Patents

Info

Publication number
NL83200C
NL83200C NL83200DA NL83200C NL 83200 C NL83200 C NL 83200C NL 83200D A NL83200D A NL 83200DA NL 83200 C NL83200 C NL 83200C
Authority
NL
Netherlands
Application number
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.)
Publication date
Application granted granted Critical
Publication of NL83200C publication Critical patent/NL83200C/xx

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/08Locating faults in cables, transmission lines, or networks
    • G01R31/11Locating faults in cables, transmission lines, or networks using pulse reflection methods
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/08Locating faults in cables, transmission lines, or networks
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B17/00Monitoring; Testing
    • H04B17/40Monitoring; Testing of relay systems
    • H04B17/401Monitoring; Testing of relay systems with selective localization
    • H04B17/402Monitoring; Testing of relay systems with selective localization using different frequencies
    • H04B17/405Monitoring; Testing of relay systems with selective localization using different frequencies generated by local multipliers, dividers, modulators

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Locating Faults (AREA)
NL83200D 1947-10-03 NL83200C (nl)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB26690/47A GB654380A (en) 1947-10-03 1947-10-03 Improvements in or relating to communication systems

Publications (1)

Publication Number Publication Date
NL83200C true NL83200C (nl) 1900-01-01

Family

ID=10247652

Family Applications (2)

Application Number Title Priority Date Filing Date
NL696907500A NL142629B (nl) 1947-10-03 Wisseldrijfwerk met koppeling en tandwielen in een gemeenschappelijk huis.
NL83200D NL83200C (nl) 1947-10-03

Family Applications Before (1)

Application Number Title Priority Date Filing Date
NL696907500A NL142629B (nl) 1947-10-03 Wisseldrijfwerk met koppeling en tandwielen in een gemeenschappelijk huis.

Country Status (4)

Country Link
US (1) US2611041A (nl)
DE (1) DE901297C (nl)
GB (1) GB654380A (nl)
NL (2) NL83200C (nl)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL169808B (nl) * 1951-05-23 Philips Nv Frequentiekiezer met vrijloopkoppeling.
DE959295C (de) * 1952-07-29 1957-03-07 Siemens Ag Schaltungsanordnung zur Ermittlung der inneren Impedanzungleichmaessigkeiten von Kabeln
US2823270A (en) * 1953-10-15 1958-02-11 British Telecomm Res Ltd Testing arrangements for telecommunication systems
FR1091841A (fr) * 1954-10-25 1955-04-15 Cie Generale Procédé et dispositif de localisation des défauts des lignes de transmission dans les installations de télécommunication à courants porteurs du type n + n
US2897406A (en) * 1955-09-15 1959-07-28 Westinghouse Electric Corp Frequency-shift carrier distance relay
DE1037518B (de) * 1955-11-30 1958-08-28 Siemens Ag Verfahren zur UEberpruefung von UEbertragungsanlagen, insbesondere zur Fernmessung der Klirrdaempfung von Unterwegsverstaerkern in Traegerfrequenzsystemen
US3312791A (en) * 1963-06-13 1967-04-04 Felten & Guilleaume Gmbh Communication system-line supervision and line fault location

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1481831A (en) * 1924-01-29 Repeater arrant ement for multiplex signaling
US2020297A (en) * 1933-07-21 1935-11-12 Bell Telephone Labor Inc Submarine cable transmission
US2020316A (en) * 1933-12-15 1935-11-12 Bell Telephone Labor Inc Submarine cable system
US2159596A (en) * 1937-07-31 1939-05-23 Bell Telephone Labor Inc Frequency conversion circuits
DE711591C (de) * 1937-12-24 1941-10-03 Telefunken Gmbh Schaltungsanordnung zur Frequenzteilung mit Elektronenroehren, die als Sperrschwinger geschaltet sind oder zu Multivibratoren gehoeren
US2208417A (en) * 1939-04-07 1940-07-16 Bell Telephone Labor Inc Transmission system
US2260160A (en) * 1940-04-26 1941-10-21 Bell Telephone Labor Inc Location and identification of faults in signaling transmission systems
US2315435A (en) * 1940-07-09 1943-03-30 Bell Telephone Labor Inc Transmission system
US2345932A (en) * 1941-03-26 1944-04-04 Bell Telephone Labor Inc Measuring apparatus
US2315450A (en) * 1941-06-14 1943-03-30 Bell Telephone Labor Inc Method of and apparatus for locating transmission faults
US2315383A (en) * 1941-06-14 1943-03-30 American Telephone & Telegraph Method and apparatus for locating transmission faults
US2321723A (en) * 1942-06-26 1943-06-15 Bell Telephone Labor Inc Speech transmission system

Also Published As

Publication number Publication date
GB654380A (en) 1951-06-13
US2611041A (en) 1952-09-16
NL142629B (nl) 1900-01-01
DE901297C (de) 1954-01-11

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