CA1074034A - Circuit de ligne telephonique avec detection de courant de boucle differentiel et compensation - Google Patents

Circuit de ligne telephonique avec detection de courant de boucle differentiel et compensation

Info

Publication number: CA1074034A
Authority: CA; Canada
Prior art keywords: winding; current; circuit; subscriber loop; signals
Prior art date: 1977-10-04
Legal status (The legal status 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 status listed.): Expired

Application number

CA288,131A

Other languages

English (en)

Inventor

Vincent V. Korsky

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Nortel Networks Ltd

Original Assignee

Northern Telecom Ltd

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.)

1977-10-04

Filing date

1977-10-04

Publication date

1980-03-18

1977-10-04 Application filed by Northern Telecom Ltd filed Critical Northern Telecom Ltd

1977-10-04 Priority to CA288,131A priority Critical patent/CA1074034A/fr

1980-03-18 Application granted granted Critical

1980-03-18 Publication of CA1074034A publication Critical patent/CA1074034A/fr

Status Expired legal-status Critical Current

Links

238000004804 winding Methods 0.000 claims abstract description 64
239000011162 core material Substances 0.000 claims abstract description 13
230000004907 flux Effects 0.000 claims abstract description 5
230000003321 amplification Effects 0.000 claims description 4
238000003199 nucleic acid amplification method Methods 0.000 claims description 4
239000000696 magnetic material Substances 0.000 claims description 3
230000008054 signal transmission Effects 0.000 claims description 2
230000002401 inhibitory effect Effects 0.000 claims 1
230000005540 biological transmission Effects 0.000 abstract 1
239000003990 capacitor Substances 0.000 description 9
OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
229910052799 carbon Inorganic materials 0.000 description 2
230000000694 effects Effects 0.000 description 2
230000007704 transition Effects 0.000 description 2
230000005355 Hall effect Effects 0.000 description 1
230000032683 aging Effects 0.000 description 1
238000001514 detection method Methods 0.000 description 1
238000005516 engineering process Methods 0.000 description 1
238000009434 installation Methods 0.000 description 1
238000000034 method Methods 0.000 description 1
AYOOGWWGECJQPI-NSHDSACASA-N n-[(1s)-1-(5-fluoropyrimidin-2-yl)ethyl]-3-(3-propan-2-yloxy-1h-pyrazol-5-yl)imidazo[4,5-b]pyridin-5-amine Chemical compound N1C(OC(C)C)=CC(N2C3=NC(N[C@@H](C)C=4N=CC(F)=CN=4)=CC=C3N=C2)=N1 AYOOGWWGECJQPI-NSHDSACASA-N 0.000 description 1
238000005457 optimization Methods 0.000 description 1
239000000758 substrate Substances 0.000 description 1
238000009966 trimming Methods 0.000 description 1
229910000859 α-Fe Inorganic materials 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
- H04M19/003—Arrangements for compensation of the DC flux in line transformers

Landscapes

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

CA288,131A 1977-10-04 1977-10-04 Circuit de ligne telephonique avec detection de courant de boucle differentiel et compensation Expired CA1074034A (fr)

Priority Applications (1)

Application Number	Priority Date	Filing Date	Title
CA288,131A CA1074034A (fr)	1977-10-04	1977-10-04	Circuit de ligne telephonique avec detection de courant de boucle differentiel et compensation

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
CA288,131A CA1074034A (fr)	1977-10-04	1977-10-04	Circuit de ligne telephonique avec detection de courant de boucle differentiel et compensation

Publications (1)

Publication Number	Publication Date
CA1074034A true CA1074034A (fr)	1980-03-18

Family

ID=4109701

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA288,131A Expired CA1074034A (fr)	1977-10-04	1977-10-04	Circuit de ligne telephonique avec detection de courant de boucle differentiel et compensation

Country Status (1)

Country	Link
CA (1)	CA1074034A (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP0450884A3 (en) *	1990-04-04	1991-12-18	Seiscor Technologies, Inc.	A subscriber line interface circuit providing regulated current
EP0445392A3 (en) *	1990-03-03	1992-05-13	Ke Kommunikations-Elektronik Gmbh & Co	Device for transmission of telecommunication signals

1977
- 1977-10-04 CA CA288,131A patent/CA1074034A/fr not_active Expired

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP0445392A3 (en) *	1990-03-03	1992-05-13	Ke Kommunikations-Elektronik Gmbh & Co	Device for transmission of telecommunication signals
US5253290A (en) *	1990-03-03	1993-10-12	Ke Kommunications Elektronik	Circuit arrangement for the transmission of telecommunication signals
EP0450884A3 (en) *	1990-04-04	1991-12-18	Seiscor Technologies, Inc.	A subscriber line interface circuit providing regulated current

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Legal Events

Date	Code	Title	Description
1997-03-18	MKEX	Expiry