ATA606579A - MEASURING DEVICE FOR A TELEPHONE LINE - Google Patents

MEASURING DEVICE FOR A TELEPHONE LINE

Info

Publication number: ATA606579A
Authority: AT; Austria
Prior art keywords: measuring device; telephone line; telephone; line; measuring
Prior art date: 1978-09-21

Application number

AT0606579A

Other languages

German (de)

Other versions

AT384698B (en

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.)

1978-09-21

Filing date

1979-09-14

Publication date

1987-05-15

1979-09-14 Application filed by Northern Telecom Ltd filed Critical Northern Telecom Ltd

1987-05-15 Publication of ATA606579A publication Critical patent/ATA606579A/en

1987-12-28 Application granted granted Critical

1987-12-28 Publication of AT384698B publication Critical patent/AT384698B/en

Classifications

- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/22—Arrangements for supervision, monitoring or testing
- H04M3/26—Arrangements for supervision, monitoring or testing with means for applying test signals or for measuring
- H04M3/28—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor
- H04M3/30—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor for subscriber's lines, for the local loop

Landscapes

Engineering & Computer Science (AREA)
Signal Processing (AREA)
Measurement Of Resistance Or Impedance (AREA)
Monitoring And Testing Of Exchanges (AREA)
Monitoring And Testing Of Transmission In General (AREA)
Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)

AT0606579A 1978-09-21 1979-09-14 MEASURING DEVICE FOR A TELEPHONE LINE AT384698B (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
CA311,757A CA1092653A (en)	1978-09-21	1978-09-21	Method and apparatus for measuring telephone line

Publications (2)

Publication Number	Publication Date
ATA606579A true ATA606579A (en)	1987-05-15
AT384698B AT384698B (en)	1987-12-28

Family

ID=4112404

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
AT0606579A AT384698B (en)	1978-09-21	1979-09-14	MEASURING DEVICE FOR A TELEPHONE LINE

Country Status (8)

Country	Link
JP (1)	JPS5542495A (en)
AT (1)	AT384698B (en)
CA (1)	CA1092653A (en)
DE (1)	DE2936722A1 (en)
FR (1)	FR2436999A1 (en)
GB (1)	GB2031248B (en)
NL (1)	NL7906671A (en)
SE (1)	SE435775B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPH0744604B2 (en) *	1985-05-17	1995-05-15	日本電気株式会社	Subscriber line monitoring circuit
GB2269073B (en) *	1992-07-23	1996-06-19	Northern Telecom Ltd	Remote line tester
GB9613287D0 (en) *	1996-06-25	1996-08-28	Raychem Ltd	Ground testing

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4028507A (en) *	1976-06-28	1977-06-07	Bell Telephone Laboratories, Incorporated	Apparatus for applying particular voltages to three-terminal circuits and measuring resulting current flows for the purpose of determining circuit characteristics

1978
- 1978-09-21 CA CA311,757A patent/CA1092653A/en not_active Expired
1979
- 1979-08-31 GB GB7930339A patent/GB2031248B/en not_active Expired
- 1979-09-06 NL NL7906671A patent/NL7906671A/en not_active Application Discontinuation
- 1979-09-11 DE DE19792936722 patent/DE2936722A1/en not_active Withdrawn
- 1979-09-14 AT AT0606579A patent/AT384698B/en not_active IP Right Cessation
- 1979-09-19 JP JP11945979A patent/JPS5542495A/en active Granted
- 1979-09-19 SE SE7907752A patent/SE435775B/en not_active IP Right Cessation
- 1979-09-20 FR FR7923477A patent/FR2436999A1/en active Granted

Also Published As

Publication number	Publication date
SE435775B (en)	1984-10-15
JPS5542495A (en)	1980-03-25
SE7907752L (en)	1980-03-22
AT384698B (en)	1987-12-28
GB2031248B (en)	1982-12-22
GB2031248A (en)	1980-04-16
JPS6322111B2 (en)	1988-05-10
DE2936722A1 (en)	1980-04-10
NL7906671A (en)	1980-03-25
CA1092653A (en)	1980-12-30
FR2436999B1 (en)	1983-07-01
FR2436999A1 (en)	1980-04-18

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Legal Events

Date	Code	Title	Description
1994-02-15	ELJ	Ceased due to non-payment of the annual fee