DK122246B - Coupling for carrier telephony systems, as well as measuring oscillator for use in such a coupling. - Google Patents

Coupling for carrier telephony systems, as well as measuring oscillator for use in such a coupling.

Info

Publication number
DK122246B
DK122246B DK600364A DK600364A DK122246B DK 122246 B DK122246 B DK 122246B DK 600364 A DK600364 A DK 600364A DK 600364 A DK600364 A DK 600364A DK 122246 B DK122246 B DK 122246B
Authority
DK
Denmark
Prior art keywords
coupling
well
telephony systems
measuring oscillator
carrier telephony
Prior art date
Application number
DK600364A
Other languages
Danish (da)
Inventor
J Engwerda
J Duimelaar
Original Assignee
Philips Nv
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 Philips Nv filed Critical Philips Nv
Publication of DK122246B publication Critical patent/DK122246B/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/40—Monitoring; Testing of relay systems
    • H04B17/401—Monitoring; Testing of relay systems with selective localization
    • H04B17/402—Monitoring; Testing of relay systems with selective localization using different frequencies
    • H04B17/403—Monitoring; Testing of relay systems with selective localization using different frequencies generated by local oscillators
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/40—Monitoring; Testing of relay systems

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
  • Amplifiers (AREA)
DK600364A 1963-12-10 1964-12-07 Coupling for carrier telephony systems, as well as measuring oscillator for use in such a coupling. DK122246B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL301627A NL147597B (en) 1963-12-10 1963-12-10 DEVICE FOR LOCATING A DEFECTIVE AMPLIFIER IN AN AMPLIFIER STATION OF A CARRIAGE TELEPHONY SYSTEM.

Publications (1)

Publication Number Publication Date
DK122246B true DK122246B (en) 1972-02-07

Family

ID=19755281

Family Applications (1)

Application Number Title Priority Date Filing Date
DK600364A DK122246B (en) 1963-12-10 1964-12-07 Coupling for carrier telephony systems, as well as measuring oscillator for use in such a coupling.

Country Status (7)

Country Link
AT (1) AT246794B (en)
BE (1) BE656808A (en)
CH (1) CH428862A (en)
DE (1) DE1226161B (en)
DK (1) DK122246B (en)
GB (1) GB1068890A (en)
NL (2) NL147597B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1369062A (en) * 1971-01-29 1974-10-02 Sits Soc It Telecom Siemens Fault location system for use in the location of faults in both a pcm link between two terminal stations

Also Published As

Publication number Publication date
GB1068890A (en) 1967-05-17
DE1226161B (en) 1966-10-06
BE656808A (en) 1965-06-08
NL301627A (en) 1900-01-01
AT246794B (en) 1966-05-10
NL147597B (en) 1975-10-15
CH428862A (en) 1967-01-31

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