FI844953L - Foerfarande foer detektering av farliga linjespaenningar oever en tvaotraodig linje. - Google Patents

Foerfarande foer detektering av farliga linjespaenningar oever en tvaotraodig linje.

Info

Publication number
FI844953L
FI844953L FI844953A FI844953A FI844953L FI 844953 L FI844953 L FI 844953L FI 844953 A FI844953 A FI 844953A FI 844953 A FI844953 A FI 844953A FI 844953 L FI844953 L FI 844953L
Authority
FI
Finland
Prior art keywords
tvaotraodig
linjespaenningar
farliga
linje
oever
Prior art date
Application number
FI844953A
Other languages
English (en)
Other versions
FI75456C (fi
FI75456B (fi
FI844953A0 (fi
Inventor
Lars Erik Hammarberg
Original Assignee
Ericsson Telefon Ab L M
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 Ericsson Telefon Ab L M filed Critical Ericsson Telefon Ab L M
Publication of FI844953A0 publication Critical patent/FI844953A0/fi
Publication of FI844953L publication Critical patent/FI844953L/fi
Application granted granted Critical
Publication of FI75456B publication Critical patent/FI75456B/fi
Publication of FI75456C publication Critical patent/FI75456C/fi

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/20—Reducing echo effects or singing; Opening or closing transmitting path; Conditioning for transmission in one direction or the other
    • H04B3/23—Reducing echo effects or singing; Opening or closing transmitting path; Conditioning for transmission in one direction or the other using a replica of transmitted signal in the time domain, e.g. echo cancellers

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Monitoring And Testing Of Exchanges (AREA)
  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
  • Measurement Of Resistance Or Impedance (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
  • Interface Circuits In Exchanges (AREA)
FI844953A 1982-12-21 1984-12-14 Foerfarande foer detektering av farliga linjespaenningar oever en tvaotraodig linje. FI75456C (fi)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
SE8207303A SE434789B (sv) 1982-12-21 1982-12-21 Forfarande for detektering av farliga linjespenningar over en tvatradig linje
SE8207303 1982-12-21
PCT/SE1983/000464 WO1984002625A1 (en) 1982-12-21 1983-12-20 Method of detecting hazardous line voltages over a two-wire line
SE8300464 1983-12-20

Publications (4)

Publication Number Publication Date
FI844953A0 FI844953A0 (fi) 1984-12-14
FI844953L true FI844953L (fi) 1984-12-14
FI75456B FI75456B (fi) 1988-02-29
FI75456C FI75456C (fi) 1988-06-09

Family

ID=20349088

Family Applications (1)

Application Number Title Priority Date Filing Date
FI844953A FI75456C (fi) 1982-12-21 1984-12-14 Foerfarande foer detektering av farliga linjespaenningar oever en tvaotraodig linje.

Country Status (11)

Country Link
US (1) US4631475A (fi)
EP (1) EP0128942B1 (fi)
JP (1) JPS60500196A (fi)
AU (1) AU560096B2 (fi)
CA (1) CA1236882A (fi)
DE (1) DE3366649D1 (fi)
DK (1) DK154385C (fi)
FI (1) FI75456C (fi)
IT (1) IT1170035B (fi)
SE (1) SE434789B (fi)
WO (1) WO1984002625A1 (fi)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060055265A1 (en) * 2004-09-16 2006-03-16 Zalusky James T Printed circuit board motor

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4203012A (en) * 1977-07-14 1980-05-13 Boxall Frank S Hybrid circuit using current mirror circuits
JPS5836312B2 (ja) * 1978-08-21 1983-08-08 日本電信電話株式会社 通信用平衡ケ−ブル線路の障害位置測定方式
DE2839875C2 (de) * 1978-09-13 1984-03-29 Siemens AG, 1000 Berlin und 8000 München Verfahren zur Prüfung einer Nachrichtenstation
FR2448258A1 (fr) * 1979-02-05 1980-08-29 Trt Telecom Radio Electr Systeme de test d'un dispositif muni d'un annuleur d'echo
SE426764B (sv) * 1981-11-02 1983-02-07 Ellemtel Utvecklings Ab Forfarande att astadkomma adaptiv ekoeliminering vid overforing av digital information i duplex jemte anordning for utforande av forfarandet
DE3245588A1 (de) * 1982-12-09 1984-06-14 Standard Elektrik Lorenz Ag, 7000 Stuttgart Verfahren und schaltungsanordnung zur fehlerortung bei einem digitalen fernmelde-teilnehmeranschluss

Also Published As

Publication number Publication date
EP0128942A1 (en) 1984-12-27
FI75456C (fi) 1988-06-09
WO1984002625A1 (en) 1984-07-05
CA1236882A (en) 1988-05-17
FI75456B (fi) 1988-02-29
EP0128942B1 (en) 1986-10-01
DK398184D0 (da) 1984-08-20
IT8324304A0 (it) 1983-12-21
DE3366649D1 (en) 1986-11-06
US4631475A (en) 1986-12-23
SE8207303D0 (sv) 1982-12-21
JPS60500196A (ja) 1985-02-07
DK398184A (da) 1984-08-20
FI844953A0 (fi) 1984-12-14
DK154385C (da) 1989-04-24
AU560096B2 (en) 1987-03-26
AU2411884A (en) 1984-07-17
SE434789B (sv) 1984-08-13
IT1170035B (it) 1987-06-03
JPH056809B2 (fi) 1993-01-27
DK154385B (da) 1988-11-07
SE8207303L (sv) 1984-06-22

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Legal Events

Date Code Title Description
MM Patent lapsed

Owner name: OY L M ERICSSON AB