IT1088708B - CIRCUITIVE ARRANGEMENT FOR ELECTRONIC POWER SUPPLY OF USER POSTS IN TELECOMMUNICATION SYSTEMS - Google Patents

CIRCUITIVE ARRANGEMENT FOR ELECTRONIC POWER SUPPLY OF USER POSTS IN TELECOMMUNICATION SYSTEMS

Info

Publication number: IT1088708B
Authority: IT; Italy
Prior art keywords: circuitive; arrangement; power supply; electronic power; telecommunication systems
Prior art date: 1976-12-02

Application number

IT3024377A

Other languages

Italian (it)

Original Assignee

Telephonwerke & Kabelindustrie

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.)

1976-12-02

Filing date

1977-12-01

Publication date

1985-06-10

1977-12-01 Application filed by Telephonwerke & Kabelindustrie filed Critical Telephonwerke & Kabelindustrie

1985-06-10 Application granted granted Critical

1985-06-10 Publication of IT1088708B publication Critical patent/IT1088708B/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

Landscapes

Engineering & Computer Science (AREA)
Power Engineering (AREA)
Signal Processing (AREA)
Interface Circuits In Exchanges (AREA)
Devices For Supply Of Signal Current (AREA)

IT3024377A 1976-12-02 1977-12-01 CIRCUITIVE ARRANGEMENT FOR ELECTRONIC POWER SUPPLY OF USER POSTS IN TELECOMMUNICATION SYSTEMS IT1088708B (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
DE19762655005 DE2655005C3 (en)	1976-12-02	1976-12-02	Circuit arrangement for an electronic subscriber feed

Publications (1)

Publication Number	Publication Date
IT1088708B true IT1088708B (en)	1985-06-10

Family

ID=5994663

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
IT3024377A IT1088708B (en)	1976-12-02	1977-12-01	CIRCUITIVE ARRANGEMENT FOR ELECTRONIC POWER SUPPLY OF USER POSTS IN TELECOMMUNICATION SYSTEMS

Country Status (13)

Country	Link
AT (1)	AT363523B (en)
BE (1)	BE861297A (en)
CA (1)	CA1111586A (en)
CH (1)	CH630209A5 (en)
DE (1)	DE2655005C3 (en)
DK (1)	DK533777A (en)
FR (1)	FR2373201A1 (en)
GB (1)	GB1587868A (en)
IE (1)	IE45750B1 (en)
IT (1)	IT1088708B (en)
LU (1)	LU78546A1 (en)
NL (1)	NL7713305A (en)
SE (1)	SE7713728L (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4203009A (en) *	1977-08-17	1980-05-13	The Post Office	Unbalanced/balanced converter circuits
NL7810086A (en) *	1978-10-06	1980-04-09	Philips Nv	POWER BRIDGE FOR A SUBSCRIBER FLOW.
DE3014187C2 (en) *	1980-04-14	1983-11-17	Nixdorf Computer Ag, 4790 Paderborn	Circuit arrangement for the two-wire connection of a telephone subscriber to one line each for incoming and incoming signals
DE3032970C2 (en) *	1980-09-02	1987-04-16	Telefonbau Und Normalzeit Gmbh, 6000 Frankfurt	Circuit arrangement for symmetrizing the operating points of electronically DC-fed connecting lines in telecommunications systems, in particular telephone exchanges
DE3116783C2 (en) *	1981-04-28	1983-09-01	Standard Elektrik Lorenz Ag, 7000 Stuttgart	Circuit arrangement for a subscriber line circuit for telephone systems
US4431868A (en) *	1981-07-09	1984-02-14	International Telephone And Telegraph Corporation	Solid state telephone line interface circuit with ringing capability
DE3138726A1 (en) *	1981-09-29	1983-04-07	Siemens AG, 1000 Berlin und 8000 München	Subscriber connection circuit for connecting two-wire subscriber connection lines to a four-wire through-connecting digital time division multiplex exchange
DE3214624C2 (en) *	1982-04-20	1986-05-28	Siemens AG, 1000 Berlin und 8000 München	Circuit arrangement for evaluating subscriber loop states in telephone systems, in particular in telephone branch exchange systems
BR8401869A (en) *	1984-04-23	1985-11-26	Microlab Sa	VOICE FREQUENCY REPEATER
FR2564678B1 (en) *	1984-05-18	1986-09-12	Thomson Csf Mat Tel	SUBSCRIBER CIRCUIT LINK INTERFACE FOR TELEPHONE SWITCH
DE4306251C1 (en) *	1993-03-01	1994-06-01	Bosch Telecom	Telecommunication system user connection line circuitry - indicates status of telephone user connection line according to call signal which switches transistor connected to operational amplifier inputs

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
CH586983A5 (en) *	1974-12-23	1977-04-15	Ibm
DE2556157C3 (en) *	1975-12-11	1979-01-18	Deutsche Telephonwerke Und Kabelindustrie Ag, 1000 Berlin	Circuit arrangement for an electronic subscriber feed

1976
- 1976-12-02 DE DE19762655005 patent/DE2655005C3/en not_active Expired
1977
- 1977-11-18 LU LU78546A patent/LU78546A1/xx unknown
- 1977-11-24 CH CH1455077A patent/CH630209A5/en not_active IP Right Cessation
- 1977-11-29 BE BE183007A patent/BE861297A/en unknown
- 1977-11-30 IE IE242877A patent/IE45750B1/en unknown
- 1977-11-30 FR FR7736123A patent/FR2373201A1/en not_active Withdrawn
- 1977-12-01 DK DK533777A patent/DK533777A/en not_active Application Discontinuation
- 1977-12-01 IT IT3024377A patent/IT1088708B/en active
- 1977-12-01 AT AT0860777A patent/AT363523B/en not_active IP Right Cessation
- 1977-12-01 NL NL7713305A patent/NL7713305A/en not_active Application Discontinuation
- 1977-12-01 GB GB5018377A patent/GB1587868A/en not_active Expired
- 1977-12-02 SE SE7713728A patent/SE7713728L/en not_active Application Discontinuation
- 1977-12-02 CA CA292,254A patent/CA1111586A/en not_active Expired

Also Published As

Publication number	Publication date
FR2373201A1 (en)	1978-06-30
DE2655005A1 (en)	1978-06-15
DE2655005C3 (en)	1980-04-17
SE7713728L (en)	1978-06-03
BE861297A (en)	1978-03-16
DK533777A (en)	1978-06-03
AT363523B (en)	1981-08-10
CH630209A5 (en)	1982-05-28
DE2655005B2 (en)	1979-08-09
LU78546A1 (en)	1978-04-13
IE45750B1 (en)	1982-11-17
ATA860777A (en)	1981-01-15
IE45750L (en)	1978-06-02
CA1111586A (en)	1981-10-27
NL7713305A (en)	1978-06-06
GB1587868A (en)	1981-04-08

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