BR0006171A - Cdma ótico que usa uma estrutura de máscara em cascata - Google Patents

Cdma ótico que usa uma estrutura de máscara em cascata

Info

Publication number
BR0006171A
BR0006171A BR0006171-9A BR0006171A BR0006171A BR 0006171 A BR0006171 A BR 0006171A BR 0006171 A BR0006171 A BR 0006171A BR 0006171 A BR0006171 A BR 0006171A
Authority
BR
Brazil
Prior art keywords
cdma
fiber
optical
chip
filter
Prior art date
Application number
BR0006171-9A
Other languages
English (en)
Inventor
James K Chan
Birendra Dutt
Original Assignee
Codestream Technologies Corp
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 Codestream Technologies Corp filed Critical Codestream Technologies Corp
Publication of BR0006171A publication Critical patent/BR0006171A/pt

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
    • H04B10/25—Arrangements specific to fibre transmission
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/005—Optical Code Multiplex
    • 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
    • H04B10/50—Transmitters
    • 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
    • H04B10/60—Receivers

Landscapes

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

Abstract

Patente de Invenção: "CDMA óTICO QUE USA UMA ESTRUTURA DE MáSCARA EM CASCATA". Transmissores e receptores CDMA óticos incluem um modulador especial que utiliza um dispositivo de gradeamento de fibra codificado com código CDMA, definido pela presença ou ausência de gradeamentos em porções de freq³ência definidas. A presença de um filtro de gradeamento de fibra através de uma faixa próxima a uma freq³ência de chip particular define um chip "bit 0" e a ausência de um filtro de gradeamento de fibra em outra freq³ência de chip designa um chip de "bit 1". A combinação de gradeamentos seletivamente provida através da seq³ência de posições de chip usando o filtro define o código CDMA. Este dispositivo de gradeamento de fibra pode ser visto como cascata de muitos filtros de gradeamento de rejeição de banda cada um correspondendo ao bit de código CDMA no domínio espectral. Conseq³entemente, um transmissor CDMA inclui dois componentes, modulador de dados que modula uma fonte ótica de faixa ampla, por exemplo, uma fonte de fibra dopada com erbidium (EDFS) ou um diodo superluminescente (SLD), um dispositivo de filtro de gradeamento de fibra para, seletivamente, passar e bloquear porções em bloco do espectro da fonte ótica de faixa ampla. A saída codificada com CDMA ótico deste transmissor é então dirigida a uma rede ótica.
BR0006171-9A 1999-05-17 2000-05-05 Cdma ótico que usa uma estrutura de máscara em cascata BR0006171A (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US13445199P 1999-05-17 1999-05-17
US37147599A 1999-08-10 1999-08-10
PCT/US2000/012235 WO2000076102A1 (en) 1999-05-17 2000-05-05 Optical cdma using a cascaded mask structure

Publications (1)

Publication Number Publication Date
BR0006171A true BR0006171A (pt) 2002-02-05

Family

ID=26832350

Family Applications (1)

Application Number Title Priority Date Filing Date
BR0006171-9A BR0006171A (pt) 1999-05-17 2000-05-05 Cdma ótico que usa uma estrutura de máscara em cascata

Country Status (8)

Country Link
EP (1) EP1097536A1 (pt)
JP (1) JP2003501945A (pt)
KR (1) KR20010071960A (pt)
AU (1) AU4701600A (pt)
BR (1) BR0006171A (pt)
CA (1) CA2338027A1 (pt)
RU (1) RU2001104442A (pt)
WO (1) WO2000076102A1 (pt)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IL145245A0 (en) 2001-09-03 2002-06-30 Jtc 2000 Dev Delaware Inc System and method including vector-matrix multiplication
EP1499043A1 (en) * 2003-07-16 2005-01-19 Alcatel Receiving method and receiver for optical CDMA signals
US7542685B2 (en) 2004-05-12 2009-06-02 Futurewei Technologies, Inc. System and method for automatic chromatic dispersion compensation
KR100621218B1 (ko) * 2004-12-17 2006-09-13 한국전자통신연구원 2차원 광 코드분할다중접속 시스템, 이 시스템에서사용되는 파장/시간 연속형 인코더 및 디코더 및인코딩/디코딩 방법
US7887243B2 (en) 2007-03-16 2011-02-15 Honeywell Federal Manufacturing & Technologies, Llc Miniature mechanical transfer optical coupler
CN114124288B (zh) * 2021-12-09 2023-07-18 中山水木光华电子信息科技有限公司 一种基于光纤编码可寻址的全光交换通信系统及方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5519526A (en) * 1992-10-21 1996-05-21 California Institute Of Technology Optical protocols for communication networks
US5457760A (en) * 1994-05-06 1995-10-10 At&T Ipm Corp. Wavelength division optical multiplexing elements
US5760941A (en) * 1996-02-29 1998-06-02 Rice University System and method for performing optical code division multiple access communication using bipolar codes
DE19629530C1 (de) * 1996-07-22 1997-10-30 Univ Dresden Tech Faseroptischer Kodierer/Dekodierer
US5867290A (en) * 1996-11-19 1999-02-02 Rdl Commercial Technologies Corporation High capacity spread spectrum optical communications system
DE19722370A1 (de) * 1997-05-28 1998-12-03 Alsthom Cge Alcatel Empfänger für ein optisches Nachrichtenübertragungssystem und Verfahren zu dessen Betrieb

Also Published As

Publication number Publication date
EP1097536A1 (en) 2001-05-09
RU2001104442A (ru) 2003-01-27
JP2003501945A (ja) 2003-01-14
CA2338027A1 (en) 2000-12-14
KR20010071960A (ko) 2001-07-31
AU4701600A (en) 2000-12-28
WO2000076102A1 (en) 2000-12-14

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Legal Events

Date Code Title Description
FA10 Dismissal: dismissal - article 33 of industrial property law
B11Y Definitive dismissal - extension of time limit for request of examination expired [chapter 11.1.1 patent gazette]