IT976153B - Circuito rapportatore numerico con soppressione dello zero par ticolarmente per prova di circuiti telefonici - Google Patents

Circuito rapportatore numerico con soppressione dello zero par ticolarmente per prova di circuiti telefonici

Info

Publication number
IT976153B
IT976153B IT71078/72A IT7107872A IT976153B IT 976153 B IT976153 B IT 976153B IT 71078/72 A IT71078/72 A IT 71078/72A IT 7107872 A IT7107872 A IT 7107872A IT 976153 B IT976153 B IT 976153B
Authority
IT
Italy
Prior art keywords
suppression
numerical
zero
telephone circuits
par ticularly
Prior art date
Application number
IT71078/72A
Other languages
English (en)
Original Assignee
Western Electric Co
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 Western Electric Co filed Critical Western Electric Co
Application granted granted Critical
Publication of IT976153B publication Critical patent/IT976153B/it

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/22—Arrangements for supervision, monitoring or testing
    • H04M3/26—Arrangements for supervision, monitoring or testing with means for applying test signals or for measuring
    • H04M3/28—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Tests Of Electronic Circuits (AREA)
  • Measuring Phase Differences (AREA)
  • Monitoring And Testing Of Exchanges (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
  • Analogue/Digital Conversion (AREA)
IT71078/72A 1971-12-27 1972-12-22 Circuito rapportatore numerico con soppressione dello zero par ticolarmente per prova di circuiti telefonici IT976153B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US21220471A 1971-12-27 1971-12-27

Publications (1)

Publication Number Publication Date
IT976153B true IT976153B (it) 1974-08-20

Family

ID=22789997

Family Applications (1)

Application Number Title Priority Date Filing Date
IT71078/72A IT976153B (it) 1971-12-27 1972-12-22 Circuito rapportatore numerico con soppressione dello zero par ticolarmente per prova di circuiti telefonici

Country Status (9)

Country Link
US (1) US3752972A (it)
JP (1) JPS4874714A (it)
BE (1) BE793242A (it)
CA (1) CA957078A (it)
FR (1) FR2166019B1 (it)
GB (1) GB1375257A (it)
IT (1) IT976153B (it)
NL (1) NL158984B (it)
SE (1) SE384576B (it)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3421873A1 (de) * 1984-06-13 1985-12-19 Brown, Boveri & Cie Ag, 6800 Mannheim Messverfahren zur ermittlung der differenz zwischen einer wechselspannung und einer zweiten spannung sowie messvorrichtung zu seiner anwendung
DE3835677C2 (de) * 1988-10-20 1997-07-17 Metrawatt Gmbh Gossen Meßverfahren und Schaltungsanordnung zur Ermittlung des Auslösestroms von FI-Schaltern
DE3835710A1 (de) * 1988-10-20 1990-05-03 Asea Brown Boveri Messverfahren und schaltungsanordnung zur ueberpruefung von schutzmassnahmen in wechselspannungsnetzen

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1170685B (de) * 1960-05-21 1964-05-21 Telefunken Patent Elektronische Anordnung zur Analog-Division
US3466460A (en) * 1967-01-20 1969-09-09 Weston Instruments Inc Time division multiplier
GB1239922A (en) * 1967-04-27 1971-07-21 K D G Instr Ltd Modulated pulse computing circuits
US3550022A (en) * 1968-09-04 1970-12-22 Bendix Corp Divider circuit
US3502983A (en) * 1968-11-20 1970-03-24 Bell Telephone Labor Inc Signal peak-to-average ratio detector
US3652930A (en) * 1969-03-06 1972-03-28 Yokogawa Electric Works Ltd Ratio measuring apparatus
US3636332A (en) * 1970-07-22 1972-01-18 Gen Motors Corp Divider-multiplier circuit

Also Published As

Publication number Publication date
CA957078A (en) 1974-10-29
SE384576B (sv) 1976-05-10
BE793242A (fr) 1973-04-16
US3752972A (en) 1973-08-14
JPS4874714A (it) 1973-10-08
NL7217548A (it) 1973-06-29
GB1375257A (it) 1974-11-27
NL158984B (nl) 1978-12-15
FR2166019A1 (it) 1973-08-10
DE2262606B2 (de) 1975-10-16
DE2262606A1 (de) 1973-07-05
FR2166019B1 (it) 1975-03-28

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