BR0311484A - Métodos para transmitir e receber sinais de laser, e, transmissor e receptor para sinais de laser - Google Patents
Métodos para transmitir e receber sinais de laser, e, transmissor e receptor para sinais de laserInfo
- Publication number
- BR0311484A BR0311484A BR0311484-8A BR0311484A BR0311484A BR 0311484 A BR0311484 A BR 0311484A BR 0311484 A BR0311484 A BR 0311484A BR 0311484 A BR0311484 A BR 0311484A
- Authority
- BR
- Brazil
- Prior art keywords
- laser signals
- laser
- signals
- transmitter
- receiver
- 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
- H04B10/60—Receivers
- H04B10/66—Non-coherent receivers, e.g. using direct detection
- H04B10/69—Electrical arrangements in the receiver
- H04B10/693—Arrangements for optimizing the preamplifier in the receiver
- H04B10/6931—Automatic gain control of the preamplifier
-
- 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
- H04B10/11—Arrangements specific to free-space transmission, i.e. transmission through air or vacuum
- H04B10/112—Line-of-sight transmission over an extended range
-
- 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
- H04B10/50—Transmitters
- H04B10/501—Structural aspects
- H04B10/503—Laser transmitters
- H04B10/504—Laser transmitters using direct modulation
-
- 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
- H04B10/516—Details of coding or modulation
-
- 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
- H04B10/66—Non-coherent receivers, e.g. using direct detection
- H04B10/69—Electrical arrangements in the receiver
- H04B10/697—Arrangements for reducing noise and distortion
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Optics & Photonics (AREA)
- Optical Communication System (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Radar Systems Or Details Thereof (AREA)
Abstract
"MéTODOS PARA TRANSMITIR E RECEBER SINAIS DE LASER, E, TRANSMISSOR E RECEPTOR PARA SINAIS DE LASER". Método para transmitir sinais de laser (L), em particular nos sistemas de telecomunicação de ótica de Espaço Livre (FSO), em que um sinal elétrico (S) contendo informação a ser transmitida é recebido por uma interface de entrada (IN) e enviado a um emissor de laser (LE), que emite um sinal de laser (L) contendo dita informação, em que antes de alcançar o emissor de laser (LE), dito sinal elétrico (S) ou um ou mais sinais elétricos (I, Q) correspondendo a eles modulam um ou mais sinais portadores (CS, sen <sym>t, cos <sym>t) a freq³ências intermediárias incluídas entre as freq³ências do sinal de laser (L) e o sinal elétrico (S) recebido pela interface de entrada (IN). A presente invenção também relaciona-se a um método para receber os sinais de laser assim transmitidos, como também um transmissor e um receptor que executam ditos métodos.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/IT2002/000382 WO2003105373A1 (en) | 2002-06-10 | 2002-06-10 | Methods for transmitting and receiving laser signals, as well as transmitter and receiver which carry out said methods |
PCT/IB2003/002191 WO2003105372A1 (en) | 2002-06-10 | 2003-06-10 | Methods for transmitting and receiving laser signals, as well as transmitter and receiver which carry out said methods |
Publications (1)
Publication Number | Publication Date |
---|---|
BR0311484A true BR0311484A (pt) | 2005-03-15 |
Family
ID=29727215
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BR0311484-8A BR0311484A (pt) | 2002-06-10 | 2003-06-10 | Métodos para transmitir e receber sinais de laser, e, transmissor e receptor para sinais de laser |
Country Status (10)
Country | Link |
---|---|
EP (1) | EP1512235B1 (pt) |
CN (1) | CN1659808A (pt) |
AT (1) | ATE308166T1 (pt) |
AU (2) | AU2002346293A1 (pt) |
BR (1) | BR0311484A (pt) |
CA (1) | CA2489144A1 (pt) |
DE (1) | DE60302070T2 (pt) |
IL (1) | IL165298A0 (pt) |
WO (2) | WO2003105373A1 (pt) |
ZA (1) | ZA200409356B (pt) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1758280A1 (en) | 2005-08-24 | 2007-02-28 | Interlemo Holding S.A. | Installation for conveying a first plurality of electrical signals carried by a first triaxial cable to a second triaxial cable |
DE102008019066B4 (de) * | 2008-04-15 | 2010-04-29 | Deutsches Zentrum für Luft- und Raumfahrt e.V. | Verfahren zur atmosphärischen optischen Freiraumübertragung von digitalen Signalen und Empfänger für das Verfahren |
CN101807955B (zh) * | 2009-02-12 | 2014-01-01 | 北京邮电大学 | I-q调制发射机和控制i-q路间相位偏置的方法 |
US9077508B2 (en) * | 2012-11-15 | 2015-07-07 | Mitsubishi Electric Research Laboratories, Inc. | Adaptively coding and modulating signals transmitted via nonlinear channels |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5146359A (en) * | 1989-01-26 | 1992-09-08 | The Furukawa Electric Co., Ltd. | Double-stage phase-diversity receiver |
CA2051325C (en) * | 1990-09-14 | 1999-06-29 | Shigeki Watanabe | Optical communication system |
US5339184A (en) * | 1992-06-15 | 1994-08-16 | Gte Laboratories Incorporated | Fiber optic antenna remoting for multi-sector cell sites |
WO1995028042A1 (en) * | 1994-04-12 | 1995-10-19 | Philips Electronics N.V. | Heterodyne receiver having low intermediate frequency |
-
2002
- 2002-06-10 WO PCT/IT2002/000382 patent/WO2003105373A1/en not_active Application Discontinuation
- 2002-06-10 AU AU2002346293A patent/AU2002346293A1/en not_active Withdrawn
-
2003
- 2003-06-10 DE DE60302070T patent/DE60302070T2/de not_active Expired - Fee Related
- 2003-06-10 AU AU2003236948A patent/AU2003236948A1/en not_active Abandoned
- 2003-06-10 IL IL16529803A patent/IL165298A0/xx unknown
- 2003-06-10 CA CA002489144A patent/CA2489144A1/en not_active Abandoned
- 2003-06-10 CN CN038133342A patent/CN1659808A/zh active Pending
- 2003-06-10 WO PCT/IB2003/002191 patent/WO2003105372A1/en not_active Application Discontinuation
- 2003-06-10 BR BR0311484-8A patent/BR0311484A/pt not_active IP Right Cessation
- 2003-06-10 EP EP03735865A patent/EP1512235B1/en not_active Expired - Lifetime
- 2003-06-10 AT AT03735865T patent/ATE308166T1/de not_active IP Right Cessation
-
2004
- 2004-11-19 ZA ZA200409356A patent/ZA200409356B/en unknown
Also Published As
Publication number | Publication date |
---|---|
ZA200409356B (en) | 2005-05-19 |
AU2003236948A1 (en) | 2003-12-22 |
IL165298A0 (en) | 2005-12-18 |
DE60302070D1 (de) | 2005-12-01 |
AU2002346293A1 (en) | 2003-12-22 |
ATE308166T1 (de) | 2005-11-15 |
EP1512235B1 (en) | 2005-10-26 |
WO2003105372A1 (en) | 2003-12-18 |
CA2489144A1 (en) | 2003-12-18 |
WO2003105373A1 (en) | 2003-12-18 |
CN1659808A (zh) | 2005-08-24 |
DE60302070T2 (de) | 2006-07-13 |
EP1512235A1 (en) | 2005-03-09 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
B08F | Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette] |
Free format text: REFERENTE A 6A E 7A ANUIDADES |
|
B08K | Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette] |
Free format text: REFERENTE AO DESPACHO PUBLICADO NA RPI 2064 DE 27/07/2010. |
|
B15K | Others concerning applications: alteration of classification |
Free format text: PROCEDIMENTO AUTOMATICO DE RECLASSIFICACAO. AS CLASSIFICACOES IPC ANTERIORES ERAM: H04B 10/155; H04J 14/02; H04B 10/12. Ipc: H04B 10/69 (2013.01), H04B 10/112 (2013.01), H04B Ipc: H04B 10/69 (2013.01), H04B 10/112 (2013.01), H04B |