ES2074175T3 - Sistema para transmision optica de television por cable. - Google Patents

Sistema para transmision optica de television por cable.

Info

Publication number
ES2074175T3
ES2074175T3 ES91100215T ES91100215T ES2074175T3 ES 2074175 T3 ES2074175 T3 ES 2074175T3 ES 91100215 T ES91100215 T ES 91100215T ES 91100215 T ES91100215 T ES 91100215T ES 2074175 T3 ES2074175 T3 ES 2074175T3
Authority
ES
Spain
Prior art keywords
frequency
band
transmission
frequency band
cable television
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.)
Expired - Lifetime
Application number
ES91100215T
Other languages
English (en)
Inventor
Rolf Dr Heidemann
Heinz Krimmel
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.)
Alcatel Lucent Deutschland AG
Original Assignee
Alcatel SEL AG
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 Alcatel SEL AG filed Critical Alcatel SEL AG
Application granted granted Critical
Publication of ES2074175T3 publication Critical patent/ES2074175T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0298—Wavelength-division multiplex systems with sub-carrier multiplexing [SCM]

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Optical Communication System (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Television Systems (AREA)

Abstract

LA INVENCION SE BASA EN EL PROBLEMA DE UNA SEÑAL DE FRECUENCIA MULTIPLE DE UNA BANDA DE FRECUENCIA ANCHA, POR EJEMPLO LA BANDA DE FRECUENCIA DE TELEVISION POR CABLE DE 47 HASTA 440 MHZ, EMPLAZADA EN UN CONDUCTOR DE ONDAS DE LUZ-LONGITUD DE TRANSMISION. CONFORME LA INVENCION, EN LA INTALACION DE TRANSMISION LA BANDA DE FRECUENCIA ES DIVIDIDA EN SU TOTALIDAD EN DOS BANDAS (FB1, FB2) Y LA PARTE DE BANDA BAJA (FB1) SERA DISPUESTA DE OTRA MANERA MEDIANTE UNA BANDA LATERAL UNICA-MODULACION DE AMPLITUD DE UN SOPORTE DE ALTA FRECUENCIA (FO) EN UNA BANDA DE FRECUENCIA DE TRANSMISION DE ALTA FRECUENCIA, POR EJEMPLO DE 497 A 688 MHZ QUE APLICADA A SU FRECUENCIA MAS BAJA ES MENOS AMPLIA QUE UNA OCTAVA. LA PARTE DE BANDA BAJA (FB1) Y LA BANDA DE FRECUENCIA DE TRANSMISION SON SEPARADAS EN SEÑALES OPTICAS CON DISTINTAS LONGITUDES DE ONDA (1, 2) Y TRANSFERIDAS EN LONGITUDES DE ONDA MULTIPLEX SOBRE EL CONDUCTOR DE ONDAS DE LUZ. POR CAUSA DE LA LIMITACION DE MENOS DE UNA OCTAVA SE DISIPAN PRODUCTOS DE MODULACION DE SEGUNDO ORDEN QUE HABITUALMENTE SE PRODUCEN POR LA TRANSFORMACION EN UNA SEÑAL OPTICA, NO EN GAMAS DE FRECUENCIA RECUBIERTAS . DEL LADO RECEPTOR TIENE LUGAR UNA ELABORACION TERMINADA ANALOGA INVERTIDA.
ES91100215T 1990-01-16 1991-01-09 Sistema para transmision optica de television por cable. Expired - Lifetime ES2074175T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4001039A DE4001039A1 (de) 1990-01-16 1990-01-16 Optisches kabelfernseh-uebertragungssystem

Publications (1)

Publication Number Publication Date
ES2074175T3 true ES2074175T3 (es) 1995-09-01

Family

ID=6398144

Family Applications (1)

Application Number Title Priority Date Filing Date
ES91100215T Expired - Lifetime ES2074175T3 (es) 1990-01-16 1991-01-09 Sistema para transmision optica de television por cable.

Country Status (7)

Country Link
US (1) US5162937A (es)
EP (1) EP0438075B1 (es)
JP (1) JPH0698303A (es)
AU (1) AU627641B2 (es)
CA (1) CA2034233C (es)
DE (2) DE4001039A1 (es)
ES (1) ES2074175T3 (es)

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US5430568A (en) * 1992-12-01 1995-07-04 Scientific-Atlanta, Inc. Optical communications system for transmitting information signals having different wavelengths over a same optical fiber
DE4438942A1 (de) * 1994-10-31 1996-05-02 Sel Alcatel Ag Optisches Nachrichtenübertragungssystem für Kabelfernsehsignale und für teilnehmerindividuelle Signale
KR0145595B1 (ko) * 1995-03-27 1998-09-15 김주용 51메가 프레임의 단순다중/역다중을 이용한 1.2기가 광전송장치
DE19511332A1 (de) * 1995-03-28 1996-10-02 Sel Alcatel Ag Breitbandverteilsystem und Verfahren dazu
US5710650A (en) * 1996-03-14 1998-01-20 Alcatel Network Systems, Inc. Dispersion-reducing multiple wavelength division multiplexing optical fiber transceiver and methods for using and assembling same
US6115159A (en) * 1997-03-27 2000-09-05 Telecast Fiber Systems, Inc. Apparatus for fiber optic triaxial camera interface
US5940196A (en) * 1997-05-16 1999-08-17 Harmonic Lightwaves, Inc. Optical communications system with wavelength division multiplexing
US6046629A (en) * 1997-06-12 2000-04-04 Hitachi, Ltd. Method of an apparatus for demodulating amplitude-modulated signals in an amplitude phase shift keying (APSK) system
EP0891086A1 (en) * 1997-07-10 1999-01-13 Alcatel A method to provide information concerning a frequency band, a head-end, a network terminator and a terminal realizing such a method and a communication access network including such a head-end, such a network terminator and such a terminal
DE19737482A1 (de) 1997-08-28 1999-03-04 Alsthom Cge Alcatel Verfahren zur optischen Übertragung über ein Lichtwellenleiternetz, sowie optisches Übertragungsnetz
US6151336A (en) * 1998-02-11 2000-11-21 Sorrento Networks, Inc. Time division multiplexing expansion subsystem
US6400478B1 (en) 1998-04-02 2002-06-04 Sorrento Networks, Inc. Wavelength-division-multiplexed optical transmission system with expanded bidirectional transmission capacity over a single fiber
US6298103B1 (en) 1998-06-16 2001-10-02 Sorrento Networks Corporation Flexible clock and data recovery module for a DWDM optical communication system with multiple clock rates
US6359716B1 (en) * 1999-02-24 2002-03-19 Massachusetts Institute Of Technology All-optical analog FM optical receiver
US7447436B2 (en) * 1999-12-29 2008-11-04 Forster Energy Llc Optical communications using multiplexed single sideband transmission and heterodyne detection
US7209660B1 (en) 1999-12-29 2007-04-24 Forster Energy Llc Optical communications using heterodyne detection
US7146103B2 (en) 1999-12-29 2006-12-05 Forster Energy Llc Optical communications using multiplexed single sideband transmission and heterodyne detection
US7146176B2 (en) 2000-06-13 2006-12-05 Shared Spectrum Company System and method for reuse of communications spectrum for fixed and mobile applications with efficient method to mitigate interference
EP1189376A3 (en) * 2000-09-14 2005-08-17 Matsushita Electric Industrial Co., Ltd. Wavelength division multiplex optical transmitter, wavelength division multiplex optical receiver, optical transmission device, and optical transmission system
US6959154B1 (en) * 2000-11-28 2005-10-25 At&T Corp. Diversity receiver for mitigating the effects of fiber dispersion by separate detection of the two transmitted sidebands
WO2002061981A2 (en) * 2001-01-30 2002-08-08 Kestrel Solutions, Inc. Fiber optic communications
US7327959B2 (en) 2001-12-17 2008-02-05 Telecast Fiber Systems, Inc. Camera-mountable fiber optic transceiver system
US7409010B2 (en) 2003-06-10 2008-08-05 Shared Spectrum Company Method and system for transmitting signals with reduced spurious emissions
GB2420036A (en) * 2004-11-05 2006-05-10 Agilent Technologies Inc Optical transceiver with a composite electrical input
GB2420037A (en) * 2004-11-05 2006-05-10 Agilent Technologies Inc Optical transceiver with multiplexed electrical input
US8055204B2 (en) 2007-08-15 2011-11-08 Shared Spectrum Company Methods for detecting and classifying signals transmitted over a radio frequency spectrum
US8326313B2 (en) 2006-05-12 2012-12-04 Shared Spectrum Company Method and system for dynamic spectrum access using detection periods
US8155649B2 (en) 2006-05-12 2012-04-10 Shared Spectrum Company Method and system for classifying communication signals in a dynamic spectrum access system
US9538388B2 (en) 2006-05-12 2017-01-03 Shared Spectrum Company Method and system for dynamic spectrum access
US8184653B2 (en) 2007-08-15 2012-05-22 Shared Spectrum Company Systems and methods for a cognitive radio having adaptable characteristics
US8027249B2 (en) 2006-10-18 2011-09-27 Shared Spectrum Company Methods for using a detector to monitor and detect channel occupancy
US7564816B2 (en) 2006-05-12 2009-07-21 Shared Spectrum Company Method and system for determining spectrum availability within a network
US8997170B2 (en) 2006-12-29 2015-03-31 Shared Spectrum Company Method and device for policy-based control of radio
US8902369B2 (en) 2006-06-16 2014-12-02 Thomson Licensing Multichannel digital cable tuner
US8818283B2 (en) 2008-08-19 2014-08-26 Shared Spectrum Company Method and system for dynamic spectrum access using specialty detectors and improved networking
WO2013117216A1 (en) * 2012-02-07 2013-08-15 Telefonaktiebolaget L M Ericsson (Publ) Photonic rf generator
CN108702215B (zh) * 2016-02-24 2021-03-30 日本电气株式会社 多频带信号处理系统、接线盒、以及用于容纳系统的方法
JP6629709B2 (ja) * 2016-11-01 2020-01-15 日本電信電話株式会社 光伝送システム及び光伝送方法
JP6883338B2 (ja) * 2018-07-13 2021-06-09 シンクレイヤ株式会社 Ｉｐ放送システム

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* Cited by examiner, † Cited by third party
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DE394772C (de) * 1922-12-18 1924-05-06 Harry M Greasley Vorrichtung zum Verhueten des Aufbaeumens von Motorzugwagen
GB521340A (en) * 1938-08-15 1940-05-20 Telephone Mfg Co Ltd Improvements in and relating to electric communication systems
DE3010802A1 (de) * 1980-03-20 1981-09-24 Siemens AG, 1000 Berlin und 8000 München Schaltungsanordnung zur multiplexuebertragung mehrerer nachrichtenbaender
JPS56158532A (en) * 1980-05-13 1981-12-07 Mitsubishi Electric Corp Waveform generator
DE3203785A1 (de) * 1982-02-04 1983-08-11 AEG-Telefunken Nachrichtentechnik GmbH, 7150 Backnang Verfahren zur analogen uebertragung und verteilung von mehrkanal-frequenzmultiplex-signalen ueber lichtwellenleiter
US4691375A (en) * 1984-06-06 1987-09-01 National Research Development Corporation Data transmission using a transparent tone-in band system
US4722081A (en) * 1984-07-11 1988-01-26 Matsushita Electric Industrial Co., Ltd. Analog optical transmission system
US5016242A (en) * 1988-11-01 1991-05-14 Gte Laboratories Incorporated Microwave subcarrier generation for fiber optic systems
DE3902746A1 (de) * 1989-01-31 1990-08-09 Standard Elektrik Lorenz Ag Optisches breitband-nachrichtenuebertragungssystem, insbesondere fuer den teilnehmeranschlussbereich
ES2062153T3 (es) * 1989-04-25 1994-12-16 Sel Alcatel Ag Sistema de transmision de television por cable optico.
DE3913520A1 (de) * 1989-04-25 1990-10-31 Standard Elektrik Lorenz Ag Optisches kabelfernsehuebertragungssystem
US5020049A (en) * 1989-10-13 1991-05-28 At&T Bell Laboratories Optical sub-carrier multiplex television transmission system using a linear laser diode

Also Published As

Publication number Publication date
AU627641B2 (en) 1992-08-27
EP0438075A2 (de) 1991-07-24
EP0438075B1 (de) 1995-04-26
DE4001039A1 (de) 1991-07-18
US5162937A (en) 1992-11-10
JPH0698303A (ja) 1994-04-08
AU6842090A (en) 1991-07-18
DE59105283D1 (de) 1995-06-01
EP0438075A3 (en) 1992-08-05
CA2034233A1 (en) 1991-07-17
CA2034233C (en) 1994-04-26

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