SE440579B - Anordning for signaloverforing till en transmissionsledning - Google Patents

Anordning for signaloverforing till en transmissionsledning

Info

Publication number: SE440579B
Authority: SE; Sweden
Prior art keywords: cord; transmission; transmission device; signal transmission; signal
Prior art date: 1978-07-13

Application number

SE7906003A

Other languages

English (en)

Swedish (sv)

Other versions

SE7906003L (sv

Inventor

F A C M Schoofs

Original Assignee

Philips Nv

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.)

1978-07-13

Filing date

1979-07-10

Publication date

1985-08-05

1979-07-10 Application filed by Philips Nv filed Critical Philips Nv

1980-01-14 Publication of SE7906003L publication Critical patent/SE7906003L/

1985-08-05 Publication of SE440579B publication Critical patent/SE440579B/xx

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
- H04M19/008—Using DC/DC converters

Landscapes

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

SE7906003A 1978-07-13 1979-07-10 Anordning for signaloverforing till en transmissionsledning SE440579B (sv)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
NL7807531A NL7807531A (nl)	1978-07-13	1978-07-13	Inrichting voor het toevoeren van een signaal aan een transmissielijn.

Publications (2)

Publication Number	Publication Date
SE7906003L SE7906003L (sv)	1980-01-14
SE440579B true SE440579B (sv)	1985-08-05

Family

ID=19831244

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
SE7906003A SE440579B (sv)	1978-07-13	1979-07-10	Anordning for signaloverforing till en transmissionsledning

Country Status (10)

Country	Link
US (1)	US4267408A (xx)
JP (1)	JPS593059B2 (xx)
AU (1)	AU526644B2 (xx)
BE (1)	BE877641A (xx)
CA (1)	CA1137667A (xx)
DE (1)	DE2927607C2 (xx)
FR (1)	FR2431232B1 (xx)
GB (1)	GB2025737B (xx)
NL (1)	NL7807531A (xx)
SE (1)	SE440579B (xx)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
NL8004970A (nl) *	1980-09-02	1982-04-01	Philips Nv	Inrichting voor het uitwisselen van signalen tussen gescheiden schakelinginrichtingen.
JPS57121584A (en) *	1981-01-16	1982-07-29	Tokyo Shibaura Electric Co	Transparent handrail for escalator, etc.
DE3237681C2 (de) *	1982-10-12	1986-03-27	Standard Elektrik Lorenz Ag, 7000 Stuttgart	Speiseschaltung für einen veränderlichen Verbraucherwiderstand und mit unterschiedlich wirkendem Ausgangswiderstand
JPS6128947U (ja) *	1984-07-21	1986-02-21	いすゞ自動車株式会社	歯車の軸間距離調整装置
US4602130A (en) *	1984-10-15	1986-07-22	Itt Corporation	Dual voltage source feed circuit configuration for a telephone line circuit
US5528688A (en) *	1994-09-28	1996-06-18	At&T Corp.	Telephone battery feed circuit including noise reduction circuit

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE1290202B (de) *	1966-09-30	1969-03-06	Merk Gmbh Telefonbau Fried	Schaltungsanordnung fuer die Speisung von Fernsprechteilnehmerstellen
FR2254168A1 (en) *	1973-12-11	1975-07-04	Ass Ouvriers Instr Precision	Telephone line supply device - is an active electronic device acting as resistance for direct current and high impedance for A.C.
US4004109A (en) *	1975-05-09	1977-01-18	Boxall Frank S	Hybrid circuit
CH599731A5 (xx) *	1976-03-02	1978-05-31	Ibm
DE2624021A1 (de) *	1976-05-28	1977-12-08	Siemens Ag	Schaltungsanordnung fuer mit jeweils einen haltestrom benoetigenden koppelkontakten aufgebaute koppelnetze, insbesondere fuer fernsprechleitungskoppelnetze in fernsprechvermittlungsanlagen
FR2366756A1 (fr) *	1976-09-30	1978-04-28	Labo Cent Telecommunicat	Circuit electronique d'injection de sonnerie
US4087647A (en) *	1977-05-25	1978-05-02	Bell Telephone Laboratories, Incorporated	Circuit for supplying direct current to telephone station sets

1978
- 1978-07-13 NL NL7807531A patent/NL7807531A/nl not_active Application Discontinuation
1979
- 1979-06-22 US US06/051,085 patent/US4267408A/en not_active Expired - Lifetime
- 1979-07-05 CA CA000331188A patent/CA1137667A/en not_active Expired
- 1979-07-07 DE DE2927607A patent/DE2927607C2/de not_active Expired
- 1979-07-09 GB GB7923844A patent/GB2025737B/en not_active Expired
- 1979-07-10 SE SE7906003A patent/SE440579B/xx not_active IP Right Cessation
- 1979-07-11 JP JP54088011A patent/JPS593059B2/ja not_active Expired
- 1979-07-11 BE BE0/196257A patent/BE877641A/fr not_active IP Right Cessation
- 1979-07-11 FR FR7918037A patent/FR2431232B1/fr not_active Expired
- 1979-07-12 AU AU48875/79A patent/AU526644B2/en not_active Ceased

Also Published As

Publication number	Publication date
SE7906003L (sv)	1980-01-14
GB2025737B (en)	1982-08-11
AU4887579A (en)	1980-01-17
FR2431232A1 (fr)	1980-02-08
AU526644B2 (en)	1983-01-20
DE2927607C2 (de)	1982-10-28
JPS5514797A (en)	1980-02-01
FR2431232B1 (fr)	1986-12-12
DE2927607A1 (de)	1980-01-24
BE877641A (fr)	1980-01-11
US4267408A (en)	1981-05-12
GB2025737A (en)	1980-01-23
JPS593059B2 (ja)	1984-01-21
CA1137667A (en)	1982-12-14
NL7807531A (nl)	1980-01-15

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1995-01-31

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