BE857998A - Circuit d'interface - Google Patents

Circuit d'interface

Info

Publication number: BE857998A
Authority: BE; Belgium
Prior art keywords: interface circuit; interface; circuit
Prior art date: 1976-10-04

Application number

BE180340A

Other languages

English (en)

Inventor

Alain Croisier

Christian Jacquart

Original Assignee

Ibm

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.)

1976-10-04

Filing date

1977-08-22

Publication date

1977-12-16

1977-08-22 Application filed by Ibm filed Critical Ibm

1977-12-16 Publication of BE857998A publication Critical patent/BE857998A/fr

Links

Classifications

- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/0264—Arrangements for coupling to transmission lines
- H04L25/0266—Arrangements for providing Galvanic isolation, e.g. by means of magnetic or capacitive coupling
- H04L25/0268—Arrangements for providing Galvanic isolation, e.g. by means of magnetic or capacitive coupling with modulation and subsequent demodulation
- 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
- H04M19/008—Using DC/DC converters

Landscapes

Engineering & Computer Science (AREA)
Signal Processing (AREA)
Power Engineering (AREA)
Computer Networks & Wireless Communication (AREA)
Devices For Supply Of Signal Current (AREA)
Facsimiles In General (AREA)
Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
Dc Digital Transmission (AREA)

BE180340A 1976-10-04 1977-08-22 Circuit d'interface BE857998A (fr)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
FR7630658A FR2371840A1 (fr)	1976-10-04	1976-10-04	Circuit d'interface

Publications (1)

Publication Number	Publication Date
BE857998A true BE857998A (fr)	1977-12-16

Family

ID=9178652

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
BE180340A BE857998A (fr)	1976-10-04	1977-08-22	Circuit d'interface

Country Status (12)

Country	Link
US (1)	US4115660A (fr)
AU (1)	AU509633B2 (fr)
BE (1)	BE857998A (fr)
BR (1)	BR7706625A (fr)
CA (1)	CA1075840A (fr)
DE (1)	DE2741681A1 (fr)
ES (1)	ES462859A1 (fr)
FR (1)	FR2371840A1 (fr)
GB (1)	GB1577533A (fr)
IT (1)	IT1115393B (fr)
NL (1)	NL7710053A (fr)
SE (1)	SE7711090L (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
NL7802423A (nl) *	1978-03-06	1979-09-10	Philips Nv	Voedingsinrichting voor een lijnstroomloop.
NL7802421A (nl) *	1978-03-06	1979-09-10	Philips Nv	Voedingsschakeling voor een abonneelijnstroom- loop.
NL7903663A (nl) *	1979-05-10	1980-11-12	Philips Nv	Versterker voor toepassing in een lijncircuit.
NL7903664A (nl) *	1979-05-10	1980-11-12	Philips Nv	Lijncircuit.
NL7903662A (nl) *	1979-05-10	1980-11-12	Philips Nv	Lijncircuit.
WO1981000658A1 (fr) *	1979-08-31	1981-03-05	Electro Med Eng Pty Ltd	Affaiblisseur non-reciproque de donnees de lignes telephoniques
EP0078355B1 (fr) *	1981-10-28	1985-07-31	International Business Machines Corporation	Circuit d'interface comportant des moyens d'adaptation d'impédance
US4489222A (en) *	1982-09-13	1984-12-18	The Board Of Trustees Of The Leland Stanford, Junior University	Telephone line interface
US4656659A (en) *	1985-07-18	1987-04-07	Itt Corporation	Programmable ring signal generator
US4679132A (en) *	1985-08-08	1987-07-07	American Telephone And Telegraph Company, At&T Bell Laboratories	Floating battery feed circuit using multifilar transformer
CA1283742C (fr) *	1987-06-15	1991-04-30	Gyula Jakab	Circuit d'interface pour ligne d'abonne et transformateur connexe

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2794857A (en) *	1953-07-28	1957-06-04	Westinghouse Air Brake Co	Control circuit for communications apparatus
US3491207A (en) *	1965-10-07	1970-01-20	Superior Continental Corp	Subscriber's two-wire line including carrier telephone communication system
US3577202A (en) *	1967-07-06	1971-05-04	Stromberg Carlson Corp	Telephone hybrid arrangement with frequency separation for use with tdm systems
US4011410A (en) *	1973-11-13	1977-03-08	Thomas Robert M	Communication system interface circuits

1976
- 1976-10-04 FR FR7630658A patent/FR2371840A1/fr active Granted
1977
- 1977-08-22 BE BE180340A patent/BE857998A/fr not_active IP Right Cessation
- 1977-09-07 US US05/831,329 patent/US4115660A/en not_active Expired - Lifetime
- 1977-09-12 CA CA286,484A patent/CA1075840A/fr not_active Expired
- 1977-09-13 GB GB38156/77A patent/GB1577533A/en not_active Expired
- 1977-09-14 NL NL7710053A patent/NL7710053A/xx not_active Application Discontinuation
- 1977-09-16 DE DE19772741681 patent/DE2741681A1/de active Pending
- 1977-09-16 AU AU28876/77A patent/AU509633B2/en not_active Expired
- 1977-09-20 IT IT27702/77A patent/IT1115393B/it active
- 1977-10-03 ES ES462859A patent/ES462859A1/es not_active Expired
- 1977-10-04 BR BR7706625A patent/BR7706625A/pt unknown
- 1977-10-04 SE SE7711090A patent/SE7711090L/ not_active Application Discontinuation

Also Published As

Publication number	Publication date
AU509633B2 (en)	1980-05-22
ES462859A1 (es)	1978-06-01
DE2741681A1 (de)	1978-04-06
FR2371840A1 (fr)	1978-06-16
FR2371840B1 (fr)	1982-05-14
CA1075840A (fr)	1980-04-15
NL7710053A (nl)	1978-04-06
IT1115393B (it)	1986-02-03
BR7706625A (pt)	1978-07-18
US4115660A (en)	1978-09-19
AU2887677A (en)	1979-03-22
GB1577533A (en)	1980-10-22
SE7711090L (sv)	1978-04-05

Legal Events

Date

Code

Title

Description

1986-02-28

RE

Patent lapsed

Owner name: INTERNATIONAL BUSINESS MACHINES CORP.

Effective date: 19850831

Publication	Publication Date	Title
RO84895A (fr)	1984-08-17	Raccord
SE7713116L (sv)	1978-05-23	Tillslutning
SE7712295L (sv)	1978-05-05	Integrerad krets
FI773046A (fi)	1978-04-16	Elektroniskt maottband
FI53561C (fi)	1978-06-12	Belastningsvals i rullmaskin
BE858074Q (fr)	1977-12-16	Echarpe
NL7702927A (nl)	1977-09-20	"demodulatieschakeling".
SE425675B (sv)	1982-10-25	Papperstillverkningsduk
SE410688B (sv)	1979-10-22	Elektronisk brytare
SE7708146L (sv)	1978-01-15	Elektrisk stromalstrare
SE7702634L (sv)	1977-10-01	Elektronisk brytare
FI773065A (fi)	1978-04-23	Elektronkanoner foer anvaendning i katodstraolsroer
SE7901551L (sv)	1979-08-28	Integrerad krets
TR20315A (tr)	1981-01-22	Kuecueltuelebilen semsiye
SE7703506L (sv)	1977-10-16	Elektronisk brytare
BE857998A (fr)	1977-12-16	Circuit d'interface
DK183977A (da)	1977-10-29	Lodret afbojningskreds
BR7703431A (pt)	1978-03-14	Fusicel eletronico
BR7706948A (pt)	1979-05-22	Conjunto percussor
SE430308B (sv)	1983-11-07	Sikt
FI773200A (fi)	1978-04-30	Rullvaexlingsanordning i banupprullningsmaskiner
FR2342376A1 (fr)	1977-09-23	Circuit d'ecoulemen
IT1082372B (it)	1985-05-21	Circuito integrato
MC1167A1 (fr)	1978-06-02	Thymosin d 1
SE7712296L (sv)	1978-06-09	Integrerad krets