FI97512C - Generering av en ringsignal - Google Patents

Generering av en ringsignal Download PDF

Info

Publication number
FI97512C
FI97512C FI946208A FI946208A FI97512C FI 97512 C FI97512 C FI 97512C FI 946208 A FI946208 A FI 946208A FI 946208 A FI946208 A FI 946208A FI 97512 C FI97512 C FI 97512C
Authority
FI
Finland
Prior art keywords
subscriber
polarity
circuit
ringing signal
slic
Prior art date
Application number
FI946208A
Other languages
English (en)
Finnish (fi)
Other versions
FI97512B (sv
FI946208A0 (sv
FI946208A (sv
Inventor
Olavi Riskilae
Timo Norri
Original Assignee
Nokia Telecommunications Oy
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 Nokia Telecommunications Oy filed Critical Nokia Telecommunications Oy
Priority to FI946208A priority Critical patent/FI97512C/sv
Publication of FI946208A0 publication Critical patent/FI946208A0/sv
Priority to PCT/FI1995/000712 priority patent/WO1996021316A1/en
Priority to AU43060/96A priority patent/AU4306096A/en
Publication of FI946208A publication Critical patent/FI946208A/sv
Application granted granted Critical
Publication of FI97512B publication Critical patent/FI97512B/sv
Publication of FI97512C publication Critical patent/FI97512C/sv

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M19/00—Current supply arrangements for telephone systems
    • H04M19/02—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Devices For Supply Of Signal Current (AREA)

Claims (3)

1. Förfarande för generering av en ringsignal i en abonnentanordning (SD1...SDN), kännetecknat 5 av att genereringen utförs medelst en med polaritets- växlingsegenskap försedd, i och för sig känd abonnent-linjekrets (50) genom växling av en i abonnentlinjen av en dylik krets inmatad polaritet i en ringsignalen mot-svarande takt.
2. Arrangemang för generering av en ringsignal i en abonnentanordning (SD1...SDN), säsom en telefon, enligt vilket arrangemang en frän abonnentanordningen utgäende abonnentledning (SUBL) är kopplad tili en i och för sig känd, med polaritetsväxlingsegenskap försedd SLIC-abon-15 nentlinjekrets (50) för polaritetsinversion i abonnent- ledningen, kännetecknat av att det omfattar styrorgan (52) för växling av den av SLIC-kretsen i abonnentledningen inmatade polariteten kontinuerligt i en av ringsignalen bestämd takt för generering av en 20 ringsignal i abonnentanordningen medelst nämnda styrorgan.
3. Arrangemang enligt patentkrav 2, kännetecknat av att det omfattar organ (53, A, B, C) för ändring av polaritetens växlingshastighet.
FI946208A 1994-12-30 1994-12-30 Generering av en ringsignal FI97512C (sv)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FI946208A FI97512C (sv) 1994-12-30 1994-12-30 Generering av en ringsignal
PCT/FI1995/000712 WO1996021316A1 (en) 1994-12-30 1995-12-28 Generation of a ringing signal
AU43060/96A AU4306096A (en) 1994-12-30 1995-12-28 Generation of a ringing signal

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI946208A FI97512C (sv) 1994-12-30 1994-12-30 Generering av en ringsignal
FI946208 1994-12-30

Publications (4)

Publication Number Publication Date
FI946208A0 FI946208A0 (sv) 1994-12-30
FI946208A FI946208A (sv) 1996-07-01
FI97512B FI97512B (sv) 1996-09-13
FI97512C true FI97512C (sv) 1996-12-27

Family

ID=8542092

Family Applications (1)

Application Number Title Priority Date Filing Date
FI946208A FI97512C (sv) 1994-12-30 1994-12-30 Generering av en ringsignal

Country Status (3)

Country Link
AU (1) AU4306096A (sv)
FI (1) FI97512C (sv)
WO (1) WO1996021316A1 (sv)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3712572C1 (de) * 1987-04-14 1988-08-04 Telefonbau & Normalzeit Gmbh Schaltungsanordnung fuer den UEberspannungsschutz und die Rufstromeinspeisung an einer Anschlussleitung fuer Fernmelde-,insbesondere Fernsprechvermittlungsanlagen
AU3744093A (en) * 1992-04-01 1993-11-08 Siemens Aktiengesellschaft Combined supply voltage connection and call A.C. voltage generator and connection for analog telephone receiver stations in extension installations

Also Published As

Publication number Publication date
FI97512B (sv) 1996-09-13
AU4306096A (en) 1996-07-24
WO1996021316A1 (en) 1996-07-11
FI946208A0 (sv) 1994-12-30
FI946208A (sv) 1996-07-01

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