SE7613129L - Ringsignalgenerator for telefonanleggningar - Google Patents

Ringsignalgenerator for telefonanleggningar

Info

Publication number
SE7613129L
SE7613129L SE7613129A SE7613129A SE7613129L SE 7613129 L SE7613129 L SE 7613129L SE 7613129 A SE7613129 A SE 7613129A SE 7613129 A SE7613129 A SE 7613129A SE 7613129 L SE7613129 L SE 7613129L
Authority
SE
Sweden
Prior art keywords
signal generator
telephone systems
ring signal
telephone
ring
Prior art date
Application number
SE7613129A
Other languages
English (en)
Swedish (sv)
Inventor
T N Rao
R Toumani
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
Publication of SE7613129L publication Critical patent/SE7613129L/xx

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
    • H04M19/04—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone the ringing-current being generated at the substations

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Devices For Supply Of Signal Current (AREA)
  • Telephonic Communication Services (AREA)
  • Mobile Radio Communication Systems (AREA)
SE7613129A 1975-12-05 1976-11-24 Ringsignalgenerator for telefonanleggningar SE7613129L (sv)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/638,151 US4015091A (en) 1975-12-05 1975-12-05 Telephone ringing generators

Publications (1)

Publication Number Publication Date
SE7613129L true SE7613129L (sv) 1977-06-06

Family

ID=24558846

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7613129A SE7613129L (sv) 1975-12-05 1976-11-24 Ringsignalgenerator for telefonanleggningar

Country Status (10)

Country Link
US (1) US4015091A (es)
JP (1) JPS5269510A (es)
AU (1) AU2009776A (es)
BE (1) BE849000A (es)
CA (1) CA1063741A (es)
DE (1) DE2655156A1 (es)
ES (1) ES453912A1 (es)
FR (1) FR2334251A1 (es)
IT (1) IT1064831B (es)
SE (1) SE7613129L (es)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4156150A (en) * 1977-12-16 1979-05-22 Bell Telephone Laboratories, Incorporated Circuit for regulating a DC voltage on which a large AC voltage is superimposed
US4239935A (en) * 1979-04-27 1980-12-16 Bell Telephone Laboratories, Incorporated Ringing generator
US4415961A (en) * 1981-08-26 1983-11-15 Bell Telephone Laboratories, Incorporated Telephone ringing signal generator
US4866587A (en) * 1988-12-22 1989-09-12 American Telephone And Telegraph Company At&T Bell Laboratories Electronic ringing signal generator
US5307407A (en) * 1991-12-19 1994-04-26 Nec America, Inc. 20 Hz ring generator using high frequency PWM control
JPH05176354A (ja) * 1991-12-20 1993-07-13 Fujitsu Ltd 加入者インタフェース回路
US5420915A (en) * 1992-11-25 1995-05-30 Garrett; Timothy E. Apparatus for instruction in use of telephone
GB2274959B (en) * 1993-02-08 1997-03-12 Neal Ferris Battery powered telephone visual ringing indicator
US5838788A (en) * 1996-10-17 1998-11-17 Northern Telecom Limited Telephone ringing signal generator
SE507739C2 (sv) * 1996-11-08 1998-07-06 Ericsson Telefon Ab L M Anordning vid en linjekrets för mätning av linjespänning

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3475561A (en) * 1965-09-29 1969-10-28 Superior Continental Corp Telephone carrier system having selfcontained independently attachable line tap units
US3471650A (en) * 1966-02-07 1969-10-07 Superior Continental Corp Telephone signaling system for rejecting spurious ringing signals
US3459895A (en) * 1966-05-19 1969-08-05 Itt Centrally powered subscriber carrier systems
US3536852A (en) * 1969-01-23 1970-10-27 Lorain Prod Corp Telephone interruption switching circuitry
US3780228A (en) * 1972-03-01 1973-12-18 Gte Automatic Electric Lab Inc Automatic disconnect circuit for reducing dial pulse distortion caused by subscriber carrier equipment
US3904833A (en) * 1973-06-04 1975-09-09 Superior Continental Corp Ringing generator circuit with capacitor storage
US3941941A (en) * 1973-09-27 1976-03-02 Superior Continental Corporation Relayless switching circuit for application of ringing signals
US3927266A (en) * 1974-01-16 1975-12-16 Gte Automatic Electric Lab Inc Ringer power generator circuit for subscriber carrier station terminal
JPS5342562B2 (es) * 1974-03-20 1978-11-13
US3934089A (en) * 1974-10-31 1976-01-20 Gte Automatic Electric Laboratories Incorporated Automatic disconnect circuit for subscriber carrier telephone system

Also Published As

Publication number Publication date
DE2655156A1 (de) 1977-06-16
BE849000A (fr) 1977-04-01
CA1063741A (en) 1979-10-02
IT1064831B (it) 1985-02-25
AU2009776A (en) 1978-06-08
ES453912A1 (es) 1977-11-16
JPS5269510A (en) 1977-06-09
US4015091A (en) 1977-03-29
FR2334251A1 (fr) 1977-07-01

Similar Documents

Publication Publication Date Title
SE7611217L (sv) Telekonferenssystem
SE7514058L (sv) Anordning for fortojning av fartyg
FR2315206A1 (fr) Generateur de signaux multifrequence
DK146881C (da) Radialdaek
FR2300037A1 (fr) System
SE7610730L (sv) Tidsmultiplexsystem
NL7611881A (nl) Klemring.
DK268376A (da) Generatorsystem
SE7605564L (sv) Uppkopplingsarrangemang for en fergtelevisionsmottagare
DK305776A (da) Signalgenerator
DK143576A (da) Radionavigationssystem
AT358111B (de) Referenzsignalgenerator
SE7613129L (sv) Ringsignalgenerator for telefonanleggningar
SE426256B (sv) Signalgenerator
DK390276A (da) Kommunikationsanleg
FR2349057A1 (fr) Bague de retenue
SE7613197L (sv) Ringsignalanordning
SE385533B (sv) Tvaapparatsystem
ATA175777A (de) Sprechfunksystem
DK143376A (da) Funktionsgenerator
SE7612406L (sv) Kommunikationssystem
SE7712366L (sv) Signalgenerator
SE7607162L (sv) Anordning vid telefonanleggningar
SE7604096L (sv) Anordning for utstreckning av telefonlinjers reckvidd
ES220706Y (es) Anillo de retencion.