IT1227970B - Metodo per la riduzione della potenza assorbita da un circuito integrato di interfaccia, predisposto a riposo, incorporato in una centralina telefonica e collegato ad una linea telefonica d'utente, e dispositivo circuitale operante secondo tale metodo - Google Patents

Metodo per la riduzione della potenza assorbita da un circuito integrato di interfaccia, predisposto a riposo, incorporato in una centralina telefonica e collegato ad una linea telefonica d'utente, e dispositivo circuitale operante secondo tale metodo

Info

Publication number
IT1227970B
IT1227970B IT8822474A IT2247488A IT1227970B IT 1227970 B IT1227970 B IT 1227970B IT 8822474 A IT8822474 A IT 8822474A IT 2247488 A IT2247488 A IT 2247488A IT 1227970 B IT1227970 B IT 1227970B
Authority
IT
Italy
Prior art keywords
rest
incorporated
prepared
control unit
reducing
Prior art date
Application number
IT8822474A
Other languages
English (en)
Other versions
IT8822474A0 (it
Inventor
Angelo Pariani
Walter Rossi
Vanni Saviotti
Original Assignee
Sgs Thomson Microelectronics
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 Sgs Thomson Microelectronics filed Critical Sgs Thomson Microelectronics
Priority to IT8822474A priority Critical patent/IT1227970B/it
Publication of IT8822474A0 publication Critical patent/IT8822474A0/it
Priority to DE68924829T priority patent/DE68924829T2/de
Priority to EP89118967A priority patent/EP0366991B1/en
Priority to US07/422,892 priority patent/US5046089A/en
Application granted granted Critical
Publication of IT1227970B publication Critical patent/IT1227970B/it
Priority to US08/606,870 priority patent/USRE35582E/en

Links

Classifications

    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Signal Processing (AREA)
  • Interface Circuits In Exchanges (AREA)
IT8822474A 1988-10-31 1988-10-31 Metodo per la riduzione della potenza assorbita da un circuito integrato di interfaccia, predisposto a riposo, incorporato in una centralina telefonica e collegato ad una linea telefonica d'utente, e dispositivo circuitale operante secondo tale metodo IT1227970B (it)

Priority Applications (5)

Application Number Priority Date Filing Date Title
IT8822474A IT1227970B (it) 1988-10-31 1988-10-31 Metodo per la riduzione della potenza assorbita da un circuito integrato di interfaccia, predisposto a riposo, incorporato in una centralina telefonica e collegato ad una linea telefonica d'utente, e dispositivo circuitale operante secondo tale metodo
DE68924829T DE68924829T2 (de) 1988-10-31 1989-10-12 Verfahren und Vorrichtung um die aufgenommene Leistung einer Telefonschnittstellenschaltung im Ruhe-Zustand gering zu halten.
EP89118967A EP0366991B1 (en) 1988-10-31 1989-10-12 Method and device to keep low the power absorbed by a telephone interface circuit, in the "on-hook" state of the line
US07/422,892 US5046089A (en) 1988-10-31 1989-10-18 Subscriber line interface circuit with power-down mode
US08/606,870 USRE35582E (en) 1988-10-31 1996-02-26 Subscriber line interface circuit with power-down mode

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT8822474A IT1227970B (it) 1988-10-31 1988-10-31 Metodo per la riduzione della potenza assorbita da un circuito integrato di interfaccia, predisposto a riposo, incorporato in una centralina telefonica e collegato ad una linea telefonica d'utente, e dispositivo circuitale operante secondo tale metodo

Publications (2)

Publication Number Publication Date
IT8822474A0 IT8822474A0 (it) 1988-10-31
IT1227970B true IT1227970B (it) 1991-05-20

Family

ID=11196765

Family Applications (1)

Application Number Title Priority Date Filing Date
IT8822474A IT1227970B (it) 1988-10-31 1988-10-31 Metodo per la riduzione della potenza assorbita da un circuito integrato di interfaccia, predisposto a riposo, incorporato in una centralina telefonica e collegato ad una linea telefonica d'utente, e dispositivo circuitale operante secondo tale metodo

Country Status (4)

Country Link
US (1) US5046089A (it)
EP (1) EP0366991B1 (it)
DE (1) DE68924829T2 (it)
IT (1) IT1227970B (it)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1252324B (it) * 1991-07-18 1995-06-08 Sgs Thomson Microelectronics Circuito integrato regolatore di tensione ad elevata stabilita' e basso consumo di corrente.
IT1252125B (it) * 1991-10-23 1995-06-05 Sgs Thomson Microelectronics Metodo e dispositivo circuitale per misurare in condizioni di esercizio parametri operativi di un circuito di interfaccia e di una linea telefonica d'utente ad esse collegata
EP0575124B1 (en) 1992-06-15 2001-05-16 Fujitsu Limited Semiconductor integrated circuit with input/output interface adapted for small-amplitude operation
US5428682A (en) * 1993-03-12 1995-06-27 Advanced Micro Devices, Inc. Subscriber line interface circuit with reduced on-chip power dissipation
DE4327922A1 (de) * 1993-08-19 1995-02-23 Philips Patentverwaltung Kennzeichenumsetzer mit Schutzschaltung
JP3360184B2 (ja) * 1993-09-20 2002-12-24 富士通株式会社 光加入者伝送システムに於ける給電制御方式
US5959471A (en) * 1997-09-25 1999-09-28 Siemens Aktiengesellschaft Method and apparatus for reducing the bias current in a reference voltage circuit

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2268422B1 (it) * 1974-04-17 1978-09-08 Vesque Daniel
US4164713A (en) * 1977-01-28 1979-08-14 Bell Telephone Laboratories, Incorporated Dual mode telephone subscriber loop current detector
US4419542A (en) * 1982-05-17 1983-12-06 Bell Telephone Laboratories, Incorporated Battery feed circuit
JPS6028364A (ja) * 1983-07-26 1985-02-13 Fujitsu Ltd 自動損失切替方式
JPS61191154A (ja) * 1985-02-20 1986-08-25 Fujitsu Ltd ル−プ検出及びリングトリツプ回路
DE3684744D1 (de) * 1985-09-30 1992-05-14 Siemens Ag Schaltungsanordnung fuer eine elektronische schnittstellenschaltung.
AR241360A1 (es) * 1986-06-30 1992-05-29 Siemens Ag Disposicion de circuito para desconectar los hilos de una linea de conexion de abonado de una red telefonica digital tiempo-multiplex con respecto a un circuito de alimentacion.
IT1216909B (it) * 1987-03-24 1990-03-14 Sgs Microelettronica Spa Regolatore di tensione cosiddetto switching per un circuito di interfaccia di una linea telefonica di utente.

Also Published As

Publication number Publication date
DE68924829T2 (de) 1996-05-02
DE68924829D1 (de) 1995-12-21
EP0366991B1 (en) 1995-11-15
IT8822474A0 (it) 1988-10-31
EP0366991A2 (en) 1990-05-09
EP0366991A3 (en) 1991-12-04
US5046089A (en) 1991-09-03

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Effective date: 19971030