NL1013119A1 - Herkenning van een spanningsompoling. - Google Patents

Herkenning van een spanningsompoling.

Info

Publication number
NL1013119A1
NL1013119A1 NL1013119A NL1013119A NL1013119A1 NL 1013119 A1 NL1013119 A1 NL 1013119A1 NL 1013119 A NL1013119 A NL 1013119A NL 1013119 A NL1013119 A NL 1013119A NL 1013119 A1 NL1013119 A1 NL 1013119A1
Authority
NL
Netherlands
Prior art keywords
reverse polarity
voltage reverse
polarity recognition
recognition
voltage
Prior art date
Application number
NL1013119A
Other languages
English (en)
Other versions
NL1013119C2 (nl
Inventor
Willem Nijmolen
Original Assignee
Siemens Ag
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 Siemens Ag filed Critical Siemens Ag
Publication of NL1013119A1 publication Critical patent/NL1013119A1/nl
Application granted granted Critical
Publication of NL1013119C2 publication Critical patent/NL1013119C2/nl

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K5/00—Manipulating of pulses not covered by one of the other main groups of this subclass
    • H03K5/153—Arrangements in which a pulse is delivered at the instant when a predetermined characteristic of an input signal is present or at a fixed time interval after this instant
    • H03K5/1536—Zero-crossing detectors
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/82—Line monitoring circuits for call progress or status discrimination
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/57—Arrangements for indicating or recording the number of the calling subscriber at the called subscriber's set

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Measurement Of Current Or Voltage (AREA)
  • Manipulation Of Pulses (AREA)
NL1013119A 1998-09-22 1999-09-22 Herkenning van een spanningsompoling. NL1013119C2 (nl)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19843477 1998-09-22
DE1998143477 DE19843477C1 (de) 1998-09-22 1998-09-22 Schaltungsanordnung zur Erkennung einer Spannungsumpolung

Publications (2)

Publication Number Publication Date
NL1013119A1 true NL1013119A1 (nl) 2000-03-24
NL1013119C2 NL1013119C2 (nl) 2004-09-09

Family

ID=7881864

Family Applications (1)

Application Number Title Priority Date Filing Date
NL1013119A NL1013119C2 (nl) 1998-09-22 1999-09-22 Herkenning van een spanningsompoling.

Country Status (3)

Country Link
DE (1) DE19843477C1 (nl)
GB (1) GB2341992B (nl)
NL (1) NL1013119C2 (nl)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2613590C2 (de) * 1976-03-30 1977-10-27 Siemens AG, 1000 Berlin und 8000 München Schaltungsanordnung zur Auswertung von Zustandsänderung auf Leitungen in Fernmelde- insbesondere Fernsprechanlagen
US4323734A (en) * 1980-05-15 1982-04-06 Crest Industries, Inc. Interface circuit for telephone line to equipment signal coupling
DE3706253A1 (de) * 1987-02-26 1988-09-08 Siemens Ag Schaltungsanordnung fuer fernmeldeanlagen, insbesondere fernsprechvermittlungsanlagen, mit gleichspannungs-speisung von schalteinrichtungen ueber anschlussleitungen
JPH0396057A (ja) * 1989-09-07 1991-04-22 Matsushita Electric Ind Co Ltd 極性反転検出回路
US5640113A (en) * 1994-05-06 1997-06-17 The Watt Stopper Zero crossing circuit for a relay
US5606273A (en) * 1996-03-28 1997-02-25 Caterpillar Inc. Zero crossing detector circuit
US5905794A (en) * 1996-10-15 1999-05-18 Multi-Tech Systems, Inc. Caller identification interface using line reversal detection

Also Published As

Publication number Publication date
DE19843477C1 (de) 2000-05-31
GB2341992A (en) 2000-03-29
NL1013119C2 (nl) 2004-09-09
GB2341992B (en) 2003-06-04
GB9921595D0 (en) 1999-11-17

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Legal Events

Date Code Title Description
AD1A A request for search or an international type search has been filed
RD2N Patents in respect of which a decision has been taken or a report has been made (novelty report)

Effective date: 20040707

PD2B A search report has been drawn up
VD1 Lapsed due to non-payment of the annual fee

Effective date: 20050401