BR0006171A - Cdma ótico que usa uma estrutura de máscara em cascata - Google Patents
Cdma ótico que usa uma estrutura de máscara em cascataInfo
- 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
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.
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)
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)
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 |
-
2000
- 2000-05-05 CA CA002338027A patent/CA2338027A1/en not_active Abandoned
- 2000-05-05 RU RU2001104442/09A patent/RU2001104442A/ru not_active Application Discontinuation
- 2000-05-05 AU AU47016/00A patent/AU4701600A/en not_active Abandoned
- 2000-05-05 JP JP2001502259A patent/JP2003501945A/ja active Pending
- 2000-05-05 EP EP00928840A patent/EP1097536A1/en not_active Withdrawn
- 2000-05-05 BR BR0006171-9A patent/BR0006171A/pt not_active Application Discontinuation
- 2000-05-05 WO PCT/US2000/012235 patent/WO2000076102A1/en not_active Application Discontinuation
- 2000-05-05 KR KR1020017000759A patent/KR20010071960A/ko not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
KR20010071960A (ko) | 2001-07-31 |
CA2338027A1 (en) | 2000-12-14 |
JP2003501945A (ja) | 2003-01-14 |
AU4701600A (en) | 2000-12-28 |
EP1097536A1 (en) | 2001-05-09 |
RU2001104442A (ru) | 2003-01-27 |
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] |