DK257187A - Telefonabonnentkobling - Google Patents

Telefonabonnentkobling

Info

Publication number: DK257187A
Authority: DK; Denmark
Prior art keywords: clutch; telephone subscriber; subscriber; telephone; subscriber clutch
Prior art date: 1986-05-23

Application number

DK257187A

Other languages

English (en)

Other versions

DK257187D0 (da

Inventor

Helmuth Beck

Erik Mally

Original Assignee

Siemens Ag

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.)

1986-05-23

Filing date

1987-05-21

Publication date

1987-11-24

1987-05-21 Application filed by Siemens Ag filed Critical Siemens Ag

1987-05-21 Publication of DK257187D0 publication Critical patent/DK257187D0/da

1987-11-24 Publication of DK257187A publication Critical patent/DK257187A/da

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
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
- H04B1/54—Circuits using the same frequency for two directions of communication
- H04B1/58—Hybrid arrangements, i.e. arrangements for transition from single-path two-direction transmission to single-direction transmission on each of two paths or vice versa
- H04B1/583—Hybrid arrangements, i.e. arrangements for transition from single-path two-direction transmission to single-direction transmission on each of two paths or vice versa using a bridge network

Landscapes

Engineering & Computer Science (AREA)
Signal Processing (AREA)
Power Engineering (AREA)
Computer Networks & Wireless Communication (AREA)
Interface Circuits In Exchanges (AREA)

DK257187A 1986-05-23 1987-05-21 Telefonabonnentkobling DK257187A (da)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
AT0138086A AT386307B (de)	1986-05-23	1986-05-23	Fernsprechteilnehmerschaltung

Publications (2)

Publication Number	Publication Date
DK257187D0 DK257187D0 (da)	1987-05-21
DK257187A true DK257187A (da)	1987-11-24

Family

ID=3512628

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
DK257187A DK257187A (da)	1986-05-23	1987-05-21	Telefonabonnentkobling

Country Status (9)

Country	Link
US (1)	US4914693A (da)
EP (1)	EP0246546B1 (da)
AR (1)	AR241564A1 (da)
AT (2)	AT386307B (da)
BR (1)	BR8702641A (da)
DE (1)	DE3770335D1 (da)
DK (1)	DK257187A (da)
FI (1)	FI85930C (da)
PT (1)	PT84929B (da)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR2642593B1 (fr) *	1989-01-31	1991-04-12	Cit Alcatel	Dispositif electronique de raccordement de ligne d'abonne
US4922531A (en) *	1989-04-19	1990-05-01	Northern Telecom Limited	Line interface circuit
DE3942758A1 (de) *	1989-12-23	1991-06-27	Standard Elektrik Lorenz Ag	Nachbildung einer komplexen impedanz und schnittstelle mit einer solchen nachbildung
DE3942757A1 (de) *	1989-12-23	1991-06-27	Standard Elektrik Lorenz Ag	Summierverstaerker mit einem komplexen gewichtungsfaktor und schnittstelle mit einem solchen summierverstaerker
JP2999214B2 (ja) *	1990-03-02	2000-01-17	株式会社東芝	伝送入出力回路
DE69024947T2 (de) *	1990-05-11	1996-08-08	Alcatel Nv	Impedanz-Synthese durch vielfache Schleife, die filternde Mittel verwendet
US5333192A (en) *	1990-06-26	1994-07-26	Northern Telecom Limited	Line interface circuit
US5202919A (en) *	1990-09-04	1993-04-13	Tollgrade Communications, Inc.	Metallic channel unit network
US5586181A (en) *	1990-09-04	1996-12-17	Tollgrade Communications, Inc.	Metallic channel unit network
US5457743A (en) *	1990-09-04	1995-10-10	Tollgrade Communications, Inc.	Metallic channel unit network
US5602912A (en) *	1994-05-16	1997-02-11	Silicon Systems, Inc.	Telephone hybrid circuit

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE152178C (da) *
GB1257878A (da) *	1970-04-10	1971-12-22
FR2160308B1 (da) *	1971-11-19	1977-01-28	Labo Cent Telecommunicat
US4053722A (en) *	1976-10-04	1977-10-11	The United States Of America As Represented By The Secretary Of The Navy	Solid state two-wire/four-wire converter with common battery
NL7810086A (nl) *	1978-10-06	1980-04-09	Philips Nv	Voedingsbrug voor een abonneestroomloop.
US4283604A (en) *	1979-06-04	1981-08-11	Tellabs, Inc.	Current source circuits with common mode noise rejection
FR2478908B1 (da) *	1980-03-21	1984-08-03	Thomson Csf Mat Tel
US4387273A (en) *	1980-08-25	1983-06-07	International Telephone And Telegraph Corporation	Subscriber line interface circuit with impedance synthesizer
CA1154185A (en) *	1981-01-23	1983-09-20	Patrick R. Beirne	Subscriber line interface circuit
CA1200335A (en) *	1984-02-13	1986-02-04	Stanley D. Rosenbaum	Active impedance line feed circuit
JPS61244191A (ja) *	1985-04-22	1986-10-30	Nec Corp	加入者回路

1986
- 1986-05-23 AT AT0138086A patent/AT386307B/de not_active IP Right Cessation
1987
- 1987-04-09 AR AR87307256A patent/AR241564A1/es active
- 1987-05-12 EP EP87106878A patent/EP0246546B1/de not_active Expired - Lifetime
- 1987-05-12 AT AT87106878T patent/ATE64052T1/de not_active IP Right Cessation
- 1987-05-12 DE DE8787106878T patent/DE3770335D1/de not_active Expired - Lifetime
- 1987-05-18 US US07/051,441 patent/US4914693A/en not_active Expired - Fee Related
- 1987-05-21 PT PT84929A patent/PT84929B/pt not_active IP Right Cessation
- 1987-05-21 DK DK257187A patent/DK257187A/da unknown
- 1987-05-22 FI FI872277A patent/FI85930C/fi not_active IP Right Cessation
- 1987-05-22 BR BR8702641A patent/BR8702641A/pt not_active IP Right Cessation

Also Published As

Publication number	Publication date
DK257187D0 (da)	1987-05-21
AR241564A1 (es)	1992-08-31
AT386307B (de)	1988-08-10
DE3770335D1 (de)	1991-07-04
FI872277A0 (fi)	1987-05-22
US4914693A (en)	1990-04-03
ATE64052T1 (de)	1991-06-15
EP0246546B1 (de)	1991-05-29
FI85930C (fi)	1992-06-10
EP0246546A1 (de)	1987-11-25
BR8702641A (pt)	1988-02-23
PT84929B (pt)	1990-02-08
ATA138086A (de)	1987-12-15
FI85930B (fi)	1992-02-28
FI872277A7 (fi)	1987-11-24
PT84929A (de)	1987-06-01

Publication	Publication Date	Title
SE0401973L (sv)	2004-08-03	Abonnentenhet
DE3750896D1 (de)	1995-02-02	Schnurloses Fernsprechgerät.
DE3885683D1 (de)	1993-12-23	Telefonapparat.
DE3856152D1 (de)	1998-04-23	Standbildtelephonkommunikationssystem
DE3786222D1 (de)	1993-07-22	Fernsprechsystem.
DE3781934D1 (de)	1992-11-05	Schnurloses fernsprechersystem.
DE3785823D1 (de)	1993-06-17	Schnurloses telefonsystem.
FI885236L (fi)	1989-05-14	Digitalbrytare foer telekommunikation.
DE3779626D1 (de)	1992-07-09	Fernsprecheraufbau.
DK257187D0 (da)	1987-05-21	Telefonabonnentkobling
KR870014007U (ko)	1987-09-11	전화기용 송수화기
NO870363D0 (no)	1987-01-29	Telefonapparat.
DE3785503D1 (de)	1993-05-27	Fernsprechgeraet.
FR2608875B1 (fr)	1990-07-20	Telephone confidentiel
FI873337L (fi)	1988-02-02	Kretskort foer telekommunikation.
DE3784429D1 (de)	1993-04-08	Automatischer fernsprechbeantworter.
DE3578697D1 (de)	1990-08-23	Fernsprech-handapparat.
NO874644D0 (no)	1987-11-09	Telefonapparat.
AR231890A1 (es)	1985-03-29	Aparato telefonico de abonado
FI871160A7 (fi)	1987-09-20	Tietoliikennelaitteisto.
FI900858A7 (fi)	1990-08-25	Tilaaja-puhelinlaite
FI882984A7 (fi)	1988-12-25	Puhelinkoneen kuuloke.
KR870019204U (ko)	1987-12-28	전화기의 송수화기 어깨 받침걸이
DE3769310D1 (de)	1991-05-16	Umformbare fernsprechvermittlungsanlage.
KR880018718U (ko)	1988-10-29	온후크 다이얼링 전화기