WO2003017534A3 - Crosstalk cancellation - Google Patents

Crosstalk cancellation Download PDF

Info

Publication number
WO2003017534A3
WO2003017534A3 PCT/IL2002/000651 IL0200651W WO03017534A3 WO 2003017534 A3 WO2003017534 A3 WO 2003017534A3 IL 0200651 W IL0200651 W IL 0200651W WO 03017534 A3 WO03017534 A3 WO 03017534A3
Authority
WO
WIPO (PCT)
Prior art keywords
crosstalk
transmitter
receiver
crosstalk component
input signal
Prior art date
Application number
PCT/IL2002/000651
Other languages
French (fr)
Other versions
WO2003017534A2 (en
Inventor
Raanan Ivry
Original Assignee
Broadlight Ltd
Raanan Ivry
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 Broadlight Ltd, Raanan Ivry filed Critical Broadlight Ltd
Priority to AU2002324313A priority Critical patent/AU2002324313A1/en
Publication of WO2003017534A2 publication Critical patent/WO2003017534A2/en
Publication of WO2003017534A3 publication Critical patent/WO2003017534A3/en

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
    • H04B10/40—Transceivers
    • 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
    • H04B10/80—Optical aspects relating to the use of optical transmission for specific applications, not provided for in groups H04B10/03 - H04B10/70, e.g. optical power feeding or optical transmission through water
    • H04B10/85—Protection from unauthorised access, e.g. eavesdrop protection

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Optical Communication System (AREA)

Abstract

A device useful for cancellation of crosstalk in an optical transceiver, integrating transmission of an output signal and reception of an input signal comprising:a tunable filter for cancelling the crosstalk component from the transmitter to the receiver; a delay element for closing the gap between the input signal and cancelled crosstalk component; and an adaptation circuit for adjusting to the changing characteristics of the device, such as the signal to noise and distortion ratio and the relative amounts of electrical and optical crosstalk, such that the crosstalk component from the transmitter to the receiver is more fully cancelled.
PCT/IL2002/000651 2001-08-14 2002-08-08 Crosstalk cancellation WO2003017534A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2002324313A AU2002324313A1 (en) 2001-08-14 2002-08-08 Crosstalk cancellation

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IL144890 2001-08-14
IL14489001A IL144890A0 (en) 2001-08-14 2001-08-14 A device for crosstalk cancellation in optical transceivers

Publications (2)

Publication Number Publication Date
WO2003017534A2 WO2003017534A2 (en) 2003-02-27
WO2003017534A3 true WO2003017534A3 (en) 2003-10-16

Family

ID=11075694

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IL2002/000651 WO2003017534A2 (en) 2001-08-14 2002-08-08 Crosstalk cancellation

Country Status (3)

Country Link
AU (1) AU2002324313A1 (en)
IL (1) IL144890A0 (en)
WO (1) WO2003017534A2 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0317858D0 (en) * 2003-07-30 2003-09-03 Denselight Semiconductors Pte Optical transceiver
CN101197798B (en) 2006-12-07 2011-11-02 华为技术有限公司 Signal processing system, chip, circumscribed card, filtering and transmitting/receiving device and method
CN101197592B (en) 2006-12-07 2011-09-14 华为技术有限公司 Far-end cross talk counteracting method and device, signal transmission device and signal processing system
CN101202552B (en) 2006-12-15 2012-01-25 华为技术有限公司 Crossfire counteract apparatus, signal processing system and crossfire counteract method
WO2013098325A1 (en) * 2011-12-30 2013-07-04 Nokia Siemens Networks Oy Method and arrangement for signal transmission and compensation of back reflections in optical acces pon systems
WO2014101004A1 (en) * 2012-12-26 2014-07-03 华为技术有限公司 Crosstalk suppression method and device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5307405A (en) * 1992-09-25 1994-04-26 Qualcomm Incorporated Network echo canceller
US6198819B1 (en) * 1997-11-14 2001-03-06 Tellabs Operations, Inc. Echo canceller having improved non-linear processor
WO2001033730A1 (en) * 1999-11-05 2001-05-10 Infineon Technologies Ag Echo compensation device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5307405A (en) * 1992-09-25 1994-04-26 Qualcomm Incorporated Network echo canceller
US6198819B1 (en) * 1997-11-14 2001-03-06 Tellabs Operations, Inc. Echo canceller having improved non-linear processor
WO2001033730A1 (en) * 1999-11-05 2001-05-10 Infineon Technologies Ag Echo compensation device

Also Published As

Publication number Publication date
WO2003017534A2 (en) 2003-02-27
IL144890A0 (en) 2002-06-30
AU2002324313A1 (en) 2003-03-03

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