SE7613129L - Ringsignalgenerator for telefonanleggningar - Google Patents

Ringsignalgenerator for telefonanleggningar

Info

Publication number: SE7613129L
Authority: SE; Sweden
Prior art keywords: signal generator; telephone systems; ring signal; telephone; ring
Prior art date: 1975-12-05

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.)

1975-12-05

Filing date

1976-11-24

Publication date

1977-06-06

1976-11-24 Application filed by Western Electric Co filed Critical Western Electric Co

1977-06-06 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)
Mobile Radio Communication Systems (AREA)
Telephonic Communication Services (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 (fr)
JP (1)	JPS5269510A (fr)
AU (1)	AU2009776A (fr)
BE (1)	BE849000A (fr)
CA (1)	CA1063741A (fr)
DE (1)	DE2655156A1 (fr)
ES (1)	ES453912A1 (fr)
FR (1)	FR2334251A1 (fr)
IT (1)	IT1064831B (fr)
SE (1)	SE7613129L (fr)

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 (fr) *	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

1975
- 1975-12-05 US US05/638,151 patent/US4015091A/en not_active Expired - Lifetime
1976
- 1976-10-26 CA CA264,232A patent/CA1063741A/fr not_active Expired
- 1976-11-24 SE SE7613129A patent/SE7613129L/xx unknown
- 1976-11-30 AU AU20097/76A patent/AU2009776A/en not_active Expired
- 1976-11-30 FR FR7636087A patent/FR2334251A1/fr not_active Withdrawn
- 1976-12-02 BE BE172916A patent/BE849000A/fr unknown
- 1976-12-02 IT IT30038/76A patent/IT1064831B/it active
- 1976-12-03 ES ES453912A patent/ES453912A1/es not_active Expired
- 1976-12-03 JP JP51144855A patent/JPS5269510A/ja active Pending
- 1976-12-06 DE DE19762655156 patent/DE2655156A1/de active Pending

Also Published As

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

Publication	Publication Date	Title
SE7611217L (sv)	1977-04-18	Telekonferenssystem
SE7514058L (sv)	1977-04-29	Anordning for fortojning av fartyg
FR2300037A1 (fr)	1976-09-03	System
FR2315206A1 (fr)	1977-01-14	Generateur de signaux multifrequence
DK146881C (da)	1984-07-09	Radialdaek
SE7610730L (sv)	1977-04-07	Tidsmultiplexsystem
NL7611881A (nl)	1977-05-26	Klemring.
DK268376A (da)	1976-12-17	Generatorsystem
SE7605564L (sv)	1976-11-24	Uppkopplingsarrangemang for en fergtelevisionsmottagare
DK143576A (da)	1976-10-01	Radionavigationssystem
DK305776A (da)	1977-01-13	Signalgenerator
AT358111B (de)	1980-08-25	Referenzsignalgenerator
SE426256B (sv)	1982-12-20	Signalgenerator
SE7613129L (sv)	1977-06-06	Ringsignalgenerator for telefonanleggningar
DK390276A (da)	1977-03-01	Kommunikationsanleg
FR2349057A1 (fr)	1977-11-18	Bague de retenue
ATA175777A (de)	1979-10-15	Sprechfunksystem
SE7613197L (sv)	1977-06-06	Ringsignalanordning
SE385533B (sv)	1976-07-05	Tvaapparatsystem
DK143376A (da)	1976-10-02	Funktionsgenerator
SE7612406L (sv)	1977-07-07	Kommunikationssystem
SE7712366L (sv)	1978-06-10	Signalgenerator
SE7607162L (sv)	1977-01-04	Anordning vid telefonanleggningar
SE7604096L (sv)	1976-10-26	Anordning for utstreckning av telefonlinjers reckvidd
ES220706Y (es)	1977-03-01	Anillo de retencion.