SE8601959L - Forfarande och apparat for att testa kommunikationssystem - Google Patents
Forfarande och apparat for att testa kommunikationssystemInfo
- Publication number
- SE8601959L SE8601959L SE8601959A SE8601959A SE8601959L SE 8601959 L SE8601959 L SE 8601959L SE 8601959 A SE8601959 A SE 8601959A SE 8601959 A SE8601959 A SE 8601959A SE 8601959 L SE8601959 L SE 8601959L
- Authority
- SE
- Sweden
- Prior art keywords
- capacitance
- measurement
- testing communication
- measurements
- communication systems
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/02—Details
- H04B3/46—Monitoring; Testing
-
- 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)
- Computer Networks & Wireless Communication (AREA)
- Monitoring And Testing Of Exchanges (AREA)
- Monitoring And Testing Of Transmission In General (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/645,479 US4611101A (en) | 1984-08-29 | 1984-08-29 | Method and apparatus for testing communication systems |
Publications (3)
Publication Number | Publication Date |
---|---|
SE8601959D0 SE8601959D0 (sv) | 1986-04-28 |
SE8601959L true SE8601959L (sv) | 1986-04-28 |
SE457591B SE457591B (sv) | 1989-01-09 |
Family
ID=24589200
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE8601959A SE457591B (sv) | 1984-08-29 | 1986-04-28 | Foerfarande och apparat foer att testa kommunikationssystem |
Country Status (7)
Country | Link |
---|---|
US (1) | US4611101A (sv) |
EP (1) | EP0191077A1 (sv) |
AU (1) | AU4774085A (sv) |
CA (1) | CA1245739A (sv) |
GB (3) | GB2183126B (sv) |
SE (1) | SE457591B (sv) |
WO (1) | WO1986001663A1 (sv) |
Families Citing this family (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4760592A (en) * | 1985-02-07 | 1988-07-26 | Secom General Corporation | Wire tap detection device with passive testing |
US4887289A (en) * | 1988-08-29 | 1989-12-12 | New York Telephone Company | Remote testing of a trunk leading to an automatic call distributor |
US5054050A (en) * | 1990-04-30 | 1991-10-01 | American Telephone & Telegraph Co. | Drop testing in fiber to the home systems |
JP3118730B2 (ja) * | 1991-05-20 | 2000-12-18 | 富士通株式会社 | 加入者試験制御方式 |
AU3079392A (en) * | 1991-12-13 | 1993-07-19 | Hydro-Quebec | Communication link checking method and apparatus |
EP0563674A3 (en) * | 1992-03-31 | 1993-11-18 | Siemens Ag | Test apparatus for testing line signals on an analogic subscriber connection line |
US5473666A (en) * | 1992-09-11 | 1995-12-05 | Reliance Comm/Tec Corporation | Method and apparatus for digitally controlling gain in a talking path |
KR940007852A (ko) * | 1992-09-16 | 1994-04-28 | 윤종용 | 씨디-롬 시스템의 디지탈 노이즈 음 제거회로 |
US5521959A (en) * | 1994-02-09 | 1996-05-28 | Harris Corporation | Programmable source for supplying controllably variable AC/DC voltage output for telephone line measurement apparatus |
US5644617A (en) * | 1995-01-12 | 1997-07-01 | Teradyne, Inc. | Method and apparatus for testing cables |
US5864602A (en) * | 1997-04-28 | 1999-01-26 | Nynex Science & Technologies, Inc. | Qualifying telephone line for digital transmission service |
WO1999003221A2 (en) * | 1997-07-07 | 1999-01-21 | Advanced Micro Devices, Inc. | Device and method for determining characteristics of a digital subscriber line |
KR100480565B1 (ko) * | 1997-08-29 | 2005-05-16 | 삼성전자주식회사 | 다중모드기저대역아날로그신호처리시스템의아날로그/디지탈변환장치및그의변환방법 |
EP1042880A1 (en) * | 1997-12-24 | 2000-10-11 | ADC Telecommunications, Inc | Test access system and method for digital communication networks |
ES2138556B1 (es) * | 1998-03-04 | 2000-08-16 | E Y P Telecomunicacion S A | Sistema automatico de control y medida de lineas de comunicaciones de voz. |
WO1999053627A1 (en) | 1998-04-10 | 1999-10-21 | Chrimar Systems, Inc. Doing Business As Cms Technologies | System for communicating with electronic equipment on a network |
DE19822259C2 (de) * | 1998-05-18 | 2000-07-06 | Siemens Ag | Sendeeinrichtung und Bussystem zur Datenübertragung |
US6657966B1 (en) * | 1998-12-23 | 2003-12-02 | Adc Telecommunications, Inc. | Test access system and method for digital cross connect communication networks |
US7206547B2 (en) * | 2003-09-30 | 2007-04-17 | Elektrobit Oy | Method of testing electric circuit, and arrangement |
DE102005008158B4 (de) * | 2005-02-18 | 2006-12-07 | Infineon Technologies Ag | Schaltungsanordnung zur Korrosionsschutzstromeinspeisung und Leitungstest für Zweidrahtleitungen |
US8280730B2 (en) * | 2005-05-25 | 2012-10-02 | Motorola Mobility Llc | Method and apparatus of increasing speech intelligibility in noisy environments |
US8232807B2 (en) * | 2006-10-25 | 2012-07-31 | Textron Innovations Inc. | Apparatus for detecting imbalances in a paired line |
US20080100308A1 (en) * | 2006-10-25 | 2008-05-01 | Robert Crick | Apparatus for detecting imbalances in a paired line |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3969594A (en) * | 1972-07-10 | 1976-07-13 | Porta Systems Corporation | Automated telephony testing and polling apparatus and system |
US3842218A (en) * | 1972-07-10 | 1974-10-15 | Porta Systems Corp | Automated telephony testing and polling apparatus |
US4446341A (en) * | 1982-07-16 | 1984-05-01 | Bell Telephone Laboratories, Incorporated | Mechanized testing of subscriber facilities |
-
1984
- 1984-08-29 US US06/645,479 patent/US4611101A/en not_active Expired - Lifetime
-
1985
- 1985-05-19 GB GB8610241A patent/GB2183126B/en not_active Expired
- 1985-08-19 EP EP85904210A patent/EP0191077A1/en not_active Withdrawn
- 1985-08-19 AU AU47740/85A patent/AU4774085A/en not_active Abandoned
- 1985-08-19 WO PCT/US1985/001553 patent/WO1986001663A1/en active Application Filing
- 1985-08-21 CA CA000489163A patent/CA1245739A/en not_active Expired
-
1986
- 1986-04-28 SE SE8601959A patent/SE457591B/sv not_active IP Right Cessation
-
1988
- 1988-04-07 GB GB888808141A patent/GB8808141D0/en active Pending
- 1988-06-27 GB GB8815271A patent/GB2204763B/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB2183126B (en) | 1989-06-21 |
SE8601959D0 (sv) | 1986-04-28 |
EP0191077A1 (en) | 1986-08-20 |
GB8610241D0 (en) | 1986-05-29 |
GB8815271D0 (en) | 1988-08-03 |
GB2204763B (en) | 1989-07-12 |
GB8808141D0 (en) | 1988-05-11 |
GB2204763A (en) | 1988-11-16 |
GB2183126A (en) | 1987-05-28 |
CA1245739A (en) | 1988-11-29 |
WO1986001663A1 (en) | 1986-03-13 |
SE457591B (sv) | 1989-01-09 |
AU4774085A (en) | 1986-03-24 |
US4611101A (en) | 1986-09-09 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
NAL | Patent in force |
Ref document number: 8601959-3 Format of ref document f/p: F |
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NUG | Patent has lapsed |