FI761899A - - Google Patents

Info

Publication number
FI761899A
FI761899A FI761899A FI761899A FI761899A FI 761899 A FI761899 A FI 761899A FI 761899 A FI761899 A FI 761899A FI 761899 A FI761899 A FI 761899A FI 761899 A FI761899 A FI 761899A
Authority
FI
Finland
Application number
FI761899A
Other languages
Finnish (fi)
Inventor
Peter Rule
Owen Mace
Ernest Zimmer
Original Assignee
Ericsson L M Pty Ltd
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 L M Pty Ltd filed Critical Ericsson L M Pty Ltd
Publication of FI761899A publication Critical patent/FI761899A/fi

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/24—Testing correct operation
    • H04L1/242—Testing correct operation by comparing a transmitted test signal with a locally generated replica
    • H04L1/243—Testing correct operation by comparing a transmitted test signal with a locally generated replica at the transmitter, using a loop-back
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/24—Testing correct operation
    • H04L1/241—Testing correct operation using pseudo-errors
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/04—Selecting arrangements for multiplex systems for time-division multiplexing

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Monitoring And Testing Of Exchanges (AREA)
  • Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)
  • Selective Calling Equipment (AREA)
  • Remote Monitoring And Control Of Power-Distribution Networks (AREA)
FI761899A 1975-06-30 1976-06-30 FI761899A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AUPC215575 1975-06-30

Publications (1)

Publication Number Publication Date
FI761899A true FI761899A (fr) 1976-12-31

Family

ID=3766259

Family Applications (1)

Application Number Title Priority Date Filing Date
FI761899A FI761899A (fr) 1975-06-30 1976-06-30

Country Status (14)

Country Link
US (1) US4070554A (fr)
JP (1) JPS5918917B2 (fr)
BE (1) BE843635A (fr)
BR (1) BR7604238A (fr)
DE (1) DE2629449C2 (fr)
DK (1) DK292176A (fr)
ES (1) ES449328A1 (fr)
FI (1) FI761899A (fr)
FR (1) FR2316815A1 (fr)
GB (1) GB1540900A (fr)
HU (1) HU175908B (fr)
IT (1) IT1062497B (fr)
NL (1) NL7607117A (fr)
NO (1) NO144186C (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2735341C3 (de) * 1977-08-05 1984-05-10 Standard Elektrik Lorenz Ag, 7000 Stuttgart Anordnung zur Durchgangsprüfung in Fernmeldeanlagen
DE2919618C2 (de) * 1979-05-16 1981-06-19 Telefonbau Und Normalzeit Gmbh, 6000 Frankfurt Schaltungsanordnung für mit PCM-Anschlußleitungen verbundene Fernsprechapparate
FR2519218A1 (fr) * 1981-12-24 1983-07-01 Telecommunications Sa Procede et dispositif d'alimentation d'une regie d'abonne
JPS58136336A (ja) * 1982-02-08 1983-08-13 横河電機株式会社 超音波ｃｗドプラシステム
DE3311386C2 (de) * 1983-03-29 1986-08-07 Telefonbau Und Normalzeit Gmbh, 6000 Frankfurt Verfahren zum Betreiben von Endgeräten eines digitalen Teilnehmeranschlusses
US4536617A (en) * 1983-08-01 1985-08-20 Keptel, Inc. Remotely-activated switching apparatus
US4558182A (en) * 1983-08-01 1985-12-10 Keptel, Inc. Remotely-activated switching apparatus
US4550225A (en) * 1983-10-31 1985-10-29 Keptel, Inc. AC Signal-activated switching apparatus
SE501021C2 (sv) * 1993-04-01 1994-10-24 Ericsson Telefon Ab L M Anordning för provning av linjeanslutningar vid telefonväxel
US6317839B1 (en) * 1999-01-19 2001-11-13 International Business Machines Corporation Method of and apparatus for controlling supply of power to a peripheral device in a computer system

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3069498A (en) * 1961-01-31 1962-12-18 Richard J Frank Measuring circuit for digital transmission system
US3427554A (en) * 1967-07-03 1969-02-11 Honeywell Inc Control apparatus
DE1815281B2 (de) * 1968-12-18 1976-08-05 Telefunken Patentverwertungsgesellschaft Mbh, 7900 Ulm Verfahren zur ueberwachung der teilnehmerschleife bei einem fernsprechsystem
US3655915A (en) * 1970-05-07 1972-04-11 Gen Datacomm Ind Inc Closed loop test method and apparatus for duplex data transmission modem
CH512162A (de) * 1970-05-12 1971-08-31 Sodeco Soc Des Compteurs Einrichtung zur teilnehmerseitigen Steuerung des Ladevorganges einer Pufferbatterie in einer Fernsprechanlage
US3757032A (en) * 1971-01-28 1973-09-04 Xerox Corp Method and apparatus for selectively enabling a remote receiver
US3786187A (en) * 1971-03-23 1974-01-15 Alitalia Spa Apparatus for testing systems and data transmitting networks by simulation
BE788949A (fr) * 1971-11-01 1973-03-19 Gen Datacomm Ind Inc Procede d'essai de modulateur-demodulateur
US3906174A (en) * 1973-11-16 1975-09-16 Gte Automatic Electric Lab Inc Cable pair testing arrangement

Also Published As

Publication number Publication date
NL7607117A (nl) 1977-01-03
HU175908B (en) 1980-11-28
DE2629449A1 (de) 1977-01-27
US4070554A (en) 1978-01-24
NO144186B (no) 1981-03-30
JPS528705A (en) 1977-01-22
BE843635A (fr) 1976-10-18
GB1540900A (en) 1979-02-21
FR2316815A1 (fr) 1977-01-28
DK292176A (da) 1976-12-31
BR7604238A (pt) 1977-04-05
NO762258L (fr) 1977-01-03
FR2316815B1 (fr) 1982-12-03
JPS5918917B2 (ja) 1984-05-01
NO144186C (no) 1981-07-08
DE2629449C2 (de) 1985-08-29
IT1062497B (it) 1984-10-10
ES449328A1 (es) 1978-02-16

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Legal Events

Date Code Title Description
FD Application lapsed

Owner name: L M ERICSSON PTY LTD.