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CA2081407A1 - Reconnaissance de caracteristiques de transmission - Google Patents

Reconnaissance de caracteristiques de transmission

Info

Publication number
CA2081407A1
CA2081407A1 CA2081407A CA2081407A CA2081407A1 CA 2081407 A1 CA2081407 A1 CA 2081407A1 CA 2081407 A CA2081407 A CA 2081407A CA 2081407 A CA2081407 A CA 2081407A CA 2081407 A1 CA2081407 A1 CA 2081407A1
Authority
CA
Canada
Prior art keywords
optical
electrical
path
receiver
attenuation
Prior art date
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.)
Granted
Application number
CA2081407A
Other languages
English (en)
Other versions
CA2081407C (fr
Inventor
Gary J. Grimes
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.)
AT&T Corp
Original Assignee
American Telephone and Telegraph Co Inc
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.)
Filing date
Publication date
Application filed by American Telephone and Telegraph Co Inc filed Critical American Telephone and Telegraph Co Inc
Publication of CA2081407A1 publication Critical patent/CA2081407A1/fr
Application granted granted Critical
Publication of CA2081407C publication Critical patent/CA2081407C/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Optical Communication System (AREA)
  • Dc Digital Transmission (AREA)
  • Maintenance And Management Of Digital Transmission (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Testing Of Optical Devices Or Fibers (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
CA002081407A 1991-11-27 1992-10-26 Reconnaissance de caracteristiques de transmission Expired - Fee Related CA2081407C (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US800,782 1991-11-27
US07/800,782 US5353147A (en) 1991-11-27 1991-11-27 Identification of transmission characteristic

Publications (2)

Publication Number Publication Date
CA2081407A1 true CA2081407A1 (fr) 1993-05-28
CA2081407C CA2081407C (fr) 1997-09-09

Family

ID=25179342

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002081407A Expired - Fee Related CA2081407C (fr) 1991-11-27 1992-10-26 Reconnaissance de caracteristiques de transmission

Country Status (6)

Country Link
US (1) US5353147A (fr)
EP (1) EP0544436B1 (fr)
JP (1) JP2591720B2 (fr)
KR (1) KR100272710B1 (fr)
CA (1) CA2081407C (fr)
DE (1) DE69226420T2 (fr)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7018331B2 (en) 1996-08-26 2006-03-28 Stryker Corporation Endoscope assembly useful with a scope-sensing light cable
WO2002009577A2 (fr) * 2000-07-31 2002-02-07 Stryker Corporation Ensemble endoscope a utiliser avec un cable pouvant detecter un milieu
DE69735303T2 (de) * 1996-08-26 2006-11-02 Stryker Corp., Kalamazoo Endoskop mit eingebauter geregelter lichtquelle
US6689050B1 (en) 1996-08-26 2004-02-10 Stryker Corporation Endoscope assembly useful with a scope-sensing light cable
US6154584A (en) * 1999-02-03 2000-11-28 Lan-Hopper Systems, Inc. Optical analyzer with variable attenuators at inputs and outputs
US6657968B1 (en) 1999-05-18 2003-12-02 International Business Machines Corporation Glitcher system and method for interfaced or linked architectures
US6718087B2 (en) * 2000-03-22 2004-04-06 University Of Maryland Baltimore County System and method for reducing differential mode dispersion effects in multimode optical fiber transmissions
US6829427B1 (en) * 2000-10-24 2004-12-07 Biolase Technology, Inc. Fiber detector apparatus and related methods
US6757456B2 (en) * 2001-06-19 2004-06-29 Corning Incorporated System for selecting an appropriate optical fiber type for a communication network
WO2003036827A1 (fr) * 2001-10-18 2003-05-01 Fujitsu Limited Systeme optique et procede de collecte d'informations de cablage
US7155121B2 (en) * 2001-12-20 2006-12-26 Sbc Technology Resources, Inc. Method and apparatus for providing controlled impairments to an optical transport system
US8861667B1 (en) 2002-07-12 2014-10-14 Rambus Inc. Clock data recovery circuit with equalizer clock calibration
US7362800B1 (en) 2002-07-12 2008-04-22 Rambus Inc. Auto-configured equalizer
US7292629B2 (en) * 2002-07-12 2007-11-06 Rambus Inc. Selectable-tap equalizer
DE10332056A1 (de) * 2003-07-15 2005-03-03 Siemens Ag Vorrichtung und Verfahren zum zumindest teilweisen Austausch von Systemkomponenten
US7290940B2 (en) * 2004-07-13 2007-11-06 Biolase Technology, Inc. Fiber tip detector apparatus and related methods
US20060035487A1 (en) * 2004-08-12 2006-02-16 Acer Inc. Flexible hybrid cable
WO2006032057A2 (fr) * 2004-09-18 2006-03-23 Biolase Technology, Inc. Pieces d'attache emettrices codees a utiliser avec un dispositif d'intervention a energie electromagnetique
US7356208B2 (en) * 2006-05-03 2008-04-08 Biolase Technology, Inc. Fiber detector apparatus and related methods
JP5281161B2 (ja) * 2009-07-08 2013-09-04 株式会社フジクラ 光ファイバ通信システム
US8682003B2 (en) * 2009-11-19 2014-03-25 Apple Inc. Equipment with optical paths for noise cancellation signals
US8577195B2 (en) * 2009-11-19 2013-11-05 Apple Inc. Interface accessories with optical and electrical paths
US8718294B2 (en) 2009-11-19 2014-05-06 Apple Inc. Audio connectors with wavelength-division-multiplexing capabilities
US8573861B2 (en) * 2009-11-19 2013-11-05 Apple Inc. Audio jacks with optical and electrical paths
US8651750B2 (en) * 2009-11-19 2014-02-18 Apple Inc. Audio connectors with optical structures and electrical contacts

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4295043A (en) * 1979-12-13 1981-10-13 Sperry Corporation Fiber optic cable connector
DE3586758T2 (de) * 1985-04-30 1993-04-22 Ibm Modem zur steuerung eines modemnetzes.
JPH0622353B2 (ja) * 1988-11-28 1994-03-23 富士通株式会社 伝送路の監視方式
JPH02209030A (ja) * 1989-02-09 1990-08-20 Fujitsu Ltd 光伝送回線装置
GB2228846B (en) * 1989-03-01 1993-08-18 Stc Plc Fibre optic transmission system
US4994675A (en) * 1989-04-28 1991-02-19 Rebo Research, Inc. Method and apparatus for checking continuity of optic transmission
US5066139A (en) * 1989-08-28 1991-11-19 Raynet Corporation Coupler verification test circuit
US5136410A (en) * 1990-01-09 1992-08-04 Ibm Corporation Optical fiber link control safety system

Also Published As

Publication number Publication date
KR930011479A (ko) 1993-06-24
CA2081407C (fr) 1997-09-09
KR100272710B1 (ko) 2000-11-15
JPH0685715A (ja) 1994-03-25
EP0544436B1 (fr) 1998-07-29
EP0544436A1 (fr) 1993-06-02
DE69226420T2 (de) 1998-12-24
DE69226420D1 (de) 1998-09-03
JP2591720B2 (ja) 1997-03-19
US5353147A (en) 1994-10-04

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