IT8322958A0 - Metodo ed apparecchiatura perl'alimentazione di corrente di un apparecchio d'abbonato da una centrale. - Google Patents
Metodo ed apparecchiatura perl'alimentazione di corrente di un apparecchio d'abbonato da una centrale.Info
- Publication number
- IT8322958A0 IT8322958A0 IT8322958A IT2295883A IT8322958A0 IT 8322958 A0 IT8322958 A0 IT 8322958A0 IT 8322958 A IT8322958 A IT 8322958A IT 2295883 A IT2295883 A IT 2295883A IT 8322958 A0 IT8322958 A0 IT 8322958A0
- Authority
- IT
- Italy
- Prior art keywords
- subscriber
- exchange
- equipment
- supplying power
- supplying
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M19/00—Current supply arrangements for telephone systems
- H04M19/06—Current supply arrangements for telephone systems in which current supply sources at subordinate switching centres are charged from the main exchange
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M19/00—Current supply arrangements for telephone systems
- H04M19/001—Current supply source at the exchanger providing current to substations
- H04M19/005—Feeding arrangements without the use of line transformers
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Power Engineering (AREA)
- Devices For Supply Of Signal Current (AREA)
- Interface Circuits In Exchanges (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE8205437A SE433285B (sv) | 1982-09-22 | 1982-09-22 | Anordning for strommatning av en abonnentapparat |
Publications (2)
Publication Number | Publication Date |
---|---|
IT8322958A0 true IT8322958A0 (it) | 1983-09-22 |
IT1168284B IT1168284B (it) | 1987-05-20 |
Family
ID=20347960
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT22958/83A IT1168284B (it) | 1982-09-22 | 1983-09-22 | Metodo ed apparecchiatura per l'alimentazione di corrente di un apparecchio d'abbonato da una centrale |
Country Status (10)
Country | Link |
---|---|
US (1) | US4631359A (it) |
EP (1) | EP0119245B1 (it) |
JP (1) | JPS59501651A (it) |
KR (1) | KR870000078B1 (it) |
AU (1) | AU563113B2 (it) |
BR (1) | BR8307526A (it) |
DE (1) | DE3365314D1 (it) |
IT (1) | IT1168284B (it) |
SE (1) | SE433285B (it) |
WO (1) | WO1984001250A1 (it) |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA1233580A (en) * | 1984-05-26 | 1988-03-01 | Kenji Takato | Battery feed circuit for subscriber line |
DE3428106A1 (de) * | 1984-07-30 | 1986-02-06 | Standard Elektrik Lorenz Ag, 7000 Stuttgart | Teilnehmeranschlussschaltung |
IT1214603B (it) * | 1985-04-30 | 1990-01-18 | Ates Componenti Elettron | Circuito telefonico, integrabile monoliticamente, perl'alimentazione di una linea telefonica d'utente. |
US4866768A (en) * | 1985-06-26 | 1989-09-12 | Siemens Corporate Research & Support, Inc. | Station line interface circuit for a telecommunication network |
US4727574A (en) * | 1985-09-24 | 1988-02-23 | Northern Telecom Limited | Subscriber line interface circuit with improved d.c. balance |
SE453626B (sv) * | 1986-06-27 | 1988-02-15 | Ericsson Telefon Ab L M | Sett och anordning att strommata en telefonlinje for att vid begrensad batterispenning kunna overfora en odistorderad talsignal |
SE465547B (sv) * | 1990-02-01 | 1991-09-23 | Ericsson Telefon Ab L M | Saett och krets foer likstroemsmatning till en telefonlinje |
SE465799B (sv) * | 1990-03-15 | 1991-10-28 | Ericsson Telefon Ab L M | Anordning foer reducerad effektmatning till en abonnentlinje |
DE69024947T2 (de) * | 1990-05-11 | 1996-08-08 | Alcatel Nv | Impedanz-Synthese durch vielfache Schleife, die filternde Mittel verwendet |
US5511118A (en) * | 1991-01-31 | 1996-04-23 | Northern Telecom Limited | Method of providing d.c. feed to a telephone line |
ATE166197T1 (de) * | 1993-07-29 | 1998-05-15 | St Microelectronics Srl | Integrierte teilnehmerleitungsschnittstellenschaltung mit langsamem polaritätsumschalter |
SE501975C2 (sv) * | 1993-11-09 | 1995-07-03 | Ericsson Telefon Ab L M | Gränssnittskrets mellan fyrtrådsledning och tvåtrådsledning |
SE9400186D0 (sv) * | 1994-01-21 | 1994-01-21 | Ericsson Telefon Ab L M | Förfarande i ett telekommunikationssystem |
SE507920C2 (sv) * | 1996-11-08 | 1998-07-27 | Ericsson Telefon Ab L M | Linjekrets |
US6700975B1 (en) | 1996-11-08 | 2004-03-02 | Telefonaktiebolaget Lm Ericsson (Publ) | Subscriber line interface circuit |
US7957522B2 (en) * | 2006-03-06 | 2011-06-07 | Winbond Electronics Corporation | Programmable plain old telephone line impedance matching circuits |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL7903662A (nl) * | 1979-05-10 | 1980-11-12 | Philips Nv | Lijncircuit. |
NL7903665A (nl) * | 1979-05-10 | 1980-11-12 | Philips Nv | Aansluitschakeling voor een telefoonlijn. |
GB2064915B (en) * | 1979-11-29 | 1984-03-21 | Standard Telephones Cables Ltd | Telephone line feed circuit |
GB2065418B (en) * | 1979-12-06 | 1984-02-15 | Standard Telephones Cables Ltd | Telephone line feed |
US4315207A (en) * | 1980-06-20 | 1982-02-09 | Advanced Micro Devices, Inc. | Current controlled battery feed circuit |
US4387273A (en) * | 1980-08-25 | 1983-06-07 | International Telephone And Telegraph Corporation | Subscriber line interface circuit with impedance synthesizer |
US4317963A (en) * | 1980-09-22 | 1982-03-02 | International Telephone And Telegraph Corporation | Subscriber line interface circuit utilizing impedance synthesizer and shared voltage source for loop current regulation control |
US4465967A (en) * | 1981-01-28 | 1984-08-14 | Hitachi, Ltd. | Current supply circuit |
US4476350A (en) * | 1981-02-17 | 1984-10-09 | Bell Telephone Laboratories, Incorporated | Battery feed circuit |
-
1982
- 1982-09-22 SE SE8205437A patent/SE433285B/sv not_active IP Right Cessation
-
1983
- 1983-09-16 KR KR1019830004364A patent/KR870000078B1/ko not_active IP Right Cessation
- 1983-09-22 IT IT22958/83A patent/IT1168284B/it active
- 1983-09-22 WO PCT/SE1983/000333 patent/WO1984001250A1/en active IP Right Grant
- 1983-09-22 JP JP83503073A patent/JPS59501651A/ja active Pending
- 1983-09-22 DE DE8383903019T patent/DE3365314D1/de not_active Expired
- 1983-09-22 US US06/610,291 patent/US4631359A/en not_active Expired - Lifetime
- 1983-09-22 EP EP83903019A patent/EP0119245B1/en not_active Expired
- 1983-09-22 BR BR8307526A patent/BR8307526A/pt not_active IP Right Cessation
- 1983-09-22 AU AU20345/83A patent/AU563113B2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
US4631359A (en) | 1986-12-23 |
KR840006273A (ko) | 1984-11-22 |
EP0119245B1 (en) | 1986-08-13 |
IT1168284B (it) | 1987-05-20 |
SE433285B (sv) | 1984-05-14 |
WO1984001250A1 (en) | 1984-03-29 |
SE8205437D0 (sv) | 1982-09-22 |
BR8307526A (pt) | 1984-08-21 |
DE3365314D1 (en) | 1986-09-18 |
JPS59501651A (ja) | 1984-09-13 |
AU2034583A (en) | 1984-04-04 |
KR870000078B1 (ko) | 1987-02-09 |
AU563113B2 (en) | 1987-06-25 |
SE8205437L (sv) | 1984-03-23 |
EP0119245A1 (en) | 1984-09-26 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
TA | Fee payment date (situation as of event date), data collected since 19931001 |
Effective date: 19970918 |