FR2216585B1 - - Google Patents

Info

Publication number
FR2216585B1
FR2216585B1 FR7303774A FR7303774A FR2216585B1 FR 2216585 B1 FR2216585 B1 FR 2216585B1 FR 7303774 A FR7303774 A FR 7303774A FR 7303774 A FR7303774 A FR 7303774A FR 2216585 B1 FR2216585 B1 FR 2216585B1
Authority
FR
France
Legal status (The legal status 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 status listed.)
Expired
Application number
FR7303774A
Other languages
French (fr)
Other versions
FR2216585A1 (ja
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Alcatel CIT SA
Original Assignee
Alcatel CIT SA
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 Alcatel CIT SA filed Critical Alcatel CIT SA
Priority to FR7303774A priority Critical patent/FR2216585B1/fr
Publication of FR2216585A1 publication Critical patent/FR2216585A1/fr
Application granted granted Critical
Publication of FR2216585B1 publication Critical patent/FR2216585B1/fr
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
    • G01R19/16566—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533
    • G01R19/16571—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533 comparing AC or DC current with one threshold, e.g. load current, over-current, surge current or fault current
    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C19/00—Electric signal transmission systems
    • G08C19/30—Electric signal transmission systems in which transmission is by selection of one or more conductors or channels from a plurality of conductors or channels
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/22—Arrangements for supervision, monitoring or testing
    • H04M3/2272—Subscriber line supervision circuits, e.g. call detection circuits
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Power Engineering (AREA)
  • Signal Processing (AREA)
FR7303774A 1973-02-02 1973-02-02 Expired FR2216585B1 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7303774A FR2216585B1 (ja) 1973-02-02 1973-02-02

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7303774A FR2216585B1 (ja) 1973-02-02 1973-02-02

Publications (2)

Publication Number Publication Date
FR2216585A1 FR2216585A1 (ja) 1974-08-30
FR2216585B1 true FR2216585B1 (ja) 1976-05-14

Family

ID=9114254

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7303774A Expired FR2216585B1 (ja) 1973-02-02 1973-02-02

Country Status (1)

Country Link
FR (1) FR2216585B1 (ja)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3473803D1 (en) * 1984-06-20 1988-10-06 Ibm Detection circuit for current varations

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH498459A (de) * 1969-04-22 1970-10-31 Patelhold Patentverwertung Schaltungsanordnung zur elektrischen Anzeige der Stellung eines Kontaktes

Also Published As

Publication number Publication date
FR2216585A1 (ja) 1974-08-30

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Legal Events

Date Code Title Description
ST Notification of lapse