SE437320B - Abonnentkoppling for anslutning av en telefonledning till en telefonvexel - Google Patents

Abonnentkoppling for anslutning av en telefonledning till en telefonvexel

Info

Publication number: SE437320B
Authority: SE; Sweden
Prior art keywords: current; impedance; value; sum; load impedance
Prior art date: 1978-06-26

Application number

SE7905480A

Other languages

English (en)

Swedish (sv)

Other versions

SE7905480L (sv

Inventor

G M M Ferrieu

Original Assignee

Trt Telecom Radio Electr

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.)

1978-06-26

Filing date

1979-06-21

Publication date

1985-02-18

1978-06-26 Priority claimed from FR7818960A external-priority patent/FR2430153A1/fr

1979-06-21 Application filed by Trt Telecom Radio Electr filed Critical Trt Telecom Radio Electr

1979-12-27 Publication of SE7905480L publication Critical patent/SE7905480L/

1985-02-18 Publication of SE437320B publication Critical patent/SE437320B/sv

Links

230000008878 coupling Effects 0.000 claims description 19
238000010168 coupling process Methods 0.000 claims description 19
238000005859 coupling reaction Methods 0.000 claims description 19
WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims 2
230000015572 biosynthetic process Effects 0.000 claims 1
230000010363 phase shift Effects 0.000 claims 1
239000003990 capacitor Substances 0.000 description 7
238000010586 diagram Methods 0.000 description 7
230000000295 complement effect Effects 0.000 description 2
102000001690 Factor VIII Human genes 0.000 description 1
108010054218 Factor VIII Proteins 0.000 description 1
230000003321 amplification Effects 0.000 description 1
210000003127 knee Anatomy 0.000 description 1
238000003199 nucleic acid amplification method Methods 0.000 description 1
239000007787 solid Substances 0.000 description 1
238000004804 winding Methods 0.000 description 1

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)

SE7905480A 1978-06-26 1979-06-21 Abonnentkoppling for anslutning av en telefonledning till en telefonvexel SE437320B (sv)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
FR7818960A FR2430153A1 (fr)	1978-06-26	1978-06-26	Joncteur d'abonne destine a assurer sans transformateur un couplage deux fils-quatre fils
FR7827762A FR2437757A2 (fr)	1978-06-26	1978-09-28	Joncteur d'abonne destine a assurer un couplage en deux fils ou quatre fils avec un central telephonique

Publications (2)

Publication Number	Publication Date
SE7905480L SE7905480L (sv)	1979-12-27
SE437320B true SE437320B (sv)	1985-02-18

Family

ID=26220644

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
SE7905480A SE437320B (sv)	1978-06-26	1979-06-21	Abonnentkoppling for anslutning av en telefonledning till en telefonvexel

Country Status (10)

Country	Link
US (1)	US4275277A (fr)
JP (1)	JPS6030468B2 (fr)
AU (1)	AU521488B2 (fr)
BE (1)	BE877247A (fr)
CA (1)	CA1137666A (fr)
CH (1)	CH648170A5 (fr)
DE (1)	DE2925000C2 (fr)
FR (1)	FR2437757A2 (fr)
GB (1)	GB2024564B (fr)
SE (1)	SE437320B (fr)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR2460078B1 (fr) *	1979-06-25	1986-12-12	Trt Telecom Radio Electr	Joncteur d'abonne electronique
US4359609A (en) *	1980-06-20	1982-11-16	Advanced Micro Devices, Inc.	Circuit with feedback for controlling the impedance thereof
NL8004970A (nl) *	1980-09-02	1982-04-01	Philips Nv	Inrichting voor het uitwisselen van signalen tussen gescheiden schakelinginrichtingen.
NL8100242A (nl) *	1981-01-20	1982-08-16	Philips Nv	Overspanningsbeveiliging van een lijncircuit.
IT1211072B (it) *	1981-06-30	1989-09-29	Ates Componenti Elettron	Circuito raddrizzatore a ponte di transistori per uso telefonico.
GB2104330A (en) *	1981-08-19	1983-03-02	Texas Instruments Ltd	Improvements in or relating to amplifiers
CA1177985A (fr) *	1981-09-24	1984-11-13	Don W. Zobel	Circuit de raccordement electronique
US4431874A (en) *	1981-09-24	1984-02-14	Motorola, Inc.	Balanced current multiplier circuit for a subscriber loop interface circuit
US4524246A (en) *	1982-07-07	1985-06-18	Harris Corporation	SLIC II--common-mode current rejection
US4665547A (en) *	1984-11-02	1987-05-12	At&T Company	Limiting amplifier for common mode feedback in telephone line feed circuits
IT1215254B (it) *	1985-03-20	1990-01-31	Ates Componenti Elettron	Circuito, integrabile monoliticamente, per la misura di correnti longitudinali e trasversali in una linea ditrasmissione bifilare.
IT1214603B (it) *	1985-04-30	1990-01-18	Ates Componenti Elettron	Circuito telefonico, integrabile monoliticamente, perl'alimentazione di una linea telefonica d'utente.
CA1260170A (fr) *	1985-08-20	1989-09-26	Kenji Takato	Circuit d'interface pour ligne d'abonne
JPH0618396B2 (ja) *	1989-07-03	1994-03-09	ローム株式会社	電話機用電源回路
US5175764A (en) *	1990-10-18	1992-12-29	Ag Communication Systems Corporation	Enhanced high voltage line interface circuit
UA27159C2 (uk) *	1998-06-11	2000-02-28	Українсько-Американське Акціонерне Товариство З Іноземними Інвестиціями "Мітел"	Пристрій для сполучеhhя трактів передачі іhформації
CN115190393B (zh) *	2022-07-07	2025-08-01	莱珀(深圳)科技有限公司	一种音频接口反馈电路及其反馈方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR1583825A (fr) *	1968-04-19	1969-12-05
NL7208148A (fr) *	1972-06-15	1973-12-18
US4004109A (en) *	1975-05-09	1977-01-18	Boxall Frank S	Hybrid circuit
DE2556157C3 (de) *	1975-12-11	1979-01-18	Deutsche Telephonwerke Und Kabelindustrie Ag, 1000 Berlin	Schaltungsanordnung für eine elektronische Teilnehmerspeisung
US4064377A (en) *	1976-03-11	1977-12-20	Wescom Switching, Inc.	Electronic hybrid and hybrid repeater
US4041252A (en) *	1976-06-07	1977-08-09	North Electric Company	Transformerless two-wire/four-wire hybrid with DC sourcing capability
US4142075A (en) *	1977-10-11	1979-02-27	Burr-Brown Research Corporation	Interface circuit and method for telephone extension lines

1978
- 1978-09-28 FR FR7827762A patent/FR2437757A2/fr active Granted
1979
- 1979-06-21 SE SE7905480A patent/SE437320B/sv unknown
- 1979-06-21 CA CA000330330A patent/CA1137666A/fr not_active Expired
- 1979-06-21 DE DE2925000A patent/DE2925000C2/de not_active Expired
- 1979-06-22 GB GB7921834A patent/GB2024564B/en not_active Expired
- 1979-06-22 US US06/051,084 patent/US4275277A/en not_active Expired - Lifetime
- 1979-06-22 CH CH5877/79A patent/CH648170A5/de not_active IP Right Cessation
- 1979-06-25 BE BE0/195949A patent/BE877247A/fr not_active IP Right Cessation
- 1979-06-25 AU AU48358/79A patent/AU521488B2/en not_active Ceased
- 1979-06-25 JP JP54080070A patent/JPS6030468B2/ja not_active Expired

Also Published As

Publication number	Publication date
US4275277A (en)	1981-06-23
CH648170A5 (de)	1985-02-28
GB2024564A (en)	1980-01-09
CA1137666A (fr)	1982-12-14
BE877247A (fr)	1979-12-27
DE2925000A1 (de)	1980-01-10
AU521488B2 (en)	1982-04-01
FR2437757B2 (fr)	1984-01-06
FR2437757A2 (fr)	1980-04-25
SE7905480L (sv)	1979-12-27
JPS6030468B2 (ja)	1985-07-16
GB2024564B (en)	1982-06-09
AU4835879A (en)	1980-01-03
DE2925000C2 (de)	1984-03-22
JPS555595A (en)	1980-01-16

Legal Events

Date

Code

Title

Description

1995-01-31

NAL

Patent in force

Ref document number: 7905480-5

Format of ref document f/p: F

Publication	Publication Date	Title
SE437320B (sv)	1985-02-18	Abonnentkoppling for anslutning av en telefonledning till en telefonvexel
CA1177986A (fr)	1984-11-13	Circuit multiplicateur de courant equilibre pour dispositif d'interface de boucle d'abonne
SE451170B (sv)	1987-09-07	Telefonlinjekrets
US3989902A (en)	1976-11-02	Alternating current regulator for use with telephone type line
US3529099A (en)	1970-09-15	Telephone subset with resistive hybrid network
CA1138138A (fr)	1982-12-21	Circuit de ligne
CA1143492A (fr)	1983-03-22	Circuits d'interface
JPS5877361A (ja)	1983-05-10	インタ−フエイス回路
JPH0316643B2 (fr)	1991-03-06
US4356354A (en)	1982-10-26	Electronic subscriber junctor
US4297536A (en)	1981-10-27	Self-adjusting hybrid network
SE453626B (sv)	1988-02-15	Sett och anordning att strommata en telefonlinje for att vid begrensad batterispenning kunna overfora en odistorderad talsignal
US4267408A (en)	1981-05-12	Arrangement for applying a signal to a transmission line
TW457801B (en)	2001-10-01	Electronic inductor with transmit signal telephone line driver
US4046968A (en)	1977-09-06	Integrable line circuit for use with miniature line transformer
US3170043A (en)	1965-02-16	Telephone anti-sidetone circuit
NO134352B (fr)	1976-06-14
US3943432A (en)	1976-03-09	Electronic feeding bridge
US4133986A (en)	1979-01-09	Subscriber's line equipment for a telephone exchange
US4562525A (en)	1985-12-31	DC Power supply circuit for line interface circuits
SE437452B (sv)	1985-02-25	Dubbelriktad forsterkare anordnad att anslutas till en tvatradslinje
JP2628650B2 (ja)	1997-07-09	電話器
SE446579B (sv)	1986-09-22	Kopplingskrets for en telefonledning
US20070047729A1 (en)	2007-03-01	Subscriber Line Interface Circuit (SLIC) Including A Transient Output Current Limit Circuit And Related Method
US3597550A (en)	1971-08-03	Balanced telephone instrument circuit