Patents for H04J 14 - Optical multiplex systems (27,009) |
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05/26/1999 | EP0918405A1 Channel control in a wavelength division multiplexed communications network |
05/26/1999 | EP0917784A1 Method for optimising a mostly optical network |
05/26/1999 | EP0917776A1 Spectral equalizer using reconfigurable holographic filter |
05/26/1999 | EP0917775A1 System with feedback controlled optical amplifiers |
05/26/1999 | EP0917774A2 System with optical amplifier |
05/25/1999 | US5907429 For amplifying a wavelength multiplexed signal |
05/25/1999 | US5907420 System and method for mitigating cross-saturation in optically amplified networks |
05/25/1999 | US5907417 Passive optical network with diagnostic loop-back |
05/20/1999 | WO1999025081A1 Optical wavelength converter |
05/20/1999 | CA2308638A1 Optical wavelength converter |
05/19/1999 | EP0917313A2 Optical transmission system and optical communications device |
05/19/1999 | EP0917312A2 Wavelength division multiplex optical transmission apparatus |
05/19/1999 | EP0917310A2 Method and apparatus for monitoring multi-wavelength optical systems |
05/19/1999 | EP0917262A2 Wavelength selectable laser source |
05/19/1999 | EP0916199A1 Bidirectional multichannel optical telecommunication system |
05/19/1999 | EP0916198A1 Fault-tolerant optical routing switch |
05/19/1999 | EP0916105A1 Optical module for access networks to wide band communication systems and relevant production method |
05/18/1999 | US5905586 Two-way optical fiber communication system having a single light source |
05/18/1999 | CA2132559C High-density optical wavelength division multiplexing |
05/12/1999 | EP0915583A2 Wavelength division multiplex transmission apparatus |
05/11/1999 | US5903560 Parallel optical transmission system and optical transmission apparatus |
05/11/1999 | US5903385 Remotely pumping type multi-wavelength light transmission system |
05/11/1999 | US5903376 Optical transmitter for an optical communication system in connection with a radio system |
05/11/1999 | US5903371 Transparent optical self-healing-ring communication network |
05/11/1999 | US5903368 Method and a system for optical communications with passive routing |
05/11/1999 | CA2121955C Communication method in network system for performing information transmission among terminal equipments using light beams of a plurality of wavelengths, terminal equipment used in the method, and network system using the method |
05/06/1999 | WO1999022259A1 Multiple wavelength bidirectional lightwave amplifier |
05/06/1999 | WO1999012268A3 Method and system for modular multiplexing and amplification in a multi-channel plan |
05/06/1999 | EP0914015A2 Optical switch, optical amplifier and optical power controller as well as optical add-drop multiplexer |
05/06/1999 | EP0913962A2 Wavelength-multiplexing optical transmission system provided with wavelength selectors |
05/06/1999 | DE19745323A1 Verfahren und Vorrichtung zum spektralen Pegelableich in MDW Vielkanalsystemen Method and apparatus for spectral Pegelableich MDW multi-channel systems |
05/06/1999 | CA2306765A1 Multiple wavelength bidirectional lightwave amplifier |
05/04/1999 | US5900970 Optical filter and optical transmission system having the same |
05/04/1999 | US5900969 Broadband flat gain optical amplifier |
05/04/1999 | US5900968 Method of fast gain control in WDM optical networks |
05/04/1999 | US5900957 Optical packet-switched transmission network |
05/04/1999 | CA2183912C Chirped-pulse multiple wavelength communications system |
05/04/1999 | CA2146275C Wavelength division optical multiplexing elements |
04/29/1999 | WO1999021316A1 Remodulators for wdm optical communication systems |
04/29/1999 | WO1999021304A1 Transceiver for wavelength multiplexing processes |
04/29/1999 | WO1999021303A1 Optical transmission system |
04/29/1999 | WO1999021302A1 Optical amplifier control |
04/29/1999 | WO1999021039A1 Optical add/drop multiplexer |
04/29/1999 | CA2307209A1 Optical add/drop multiplexer |
04/29/1999 | CA2275700A1 Remodulators for wdm optical communication systems |
04/28/1999 | EP0911999A2 Method and device for receiving optical wavelength-multiplexed signal |
04/28/1999 | EP0911994A2 Optical signal power detection with signature bit pattern in WDM systems |
04/28/1999 | EP0911928A2 Control method and apparatus for stabilising optical wavelength |
04/28/1999 | CN1215273A Transmission device in loop network |
04/28/1999 | CN1215268A Optical cross-connection unit, divided insertion multiplexer, light source unit and insertion unit |
04/27/1999 | US5898801 Optical transport system |
04/27/1999 | US5898697 Arrangement for defining a transmission delay in a subscriber network |
04/22/1999 | WO1999020012A1 Transmission system for carrying out a wavelength division multiplex method |
04/22/1999 | WO1999019768A1 Method and device for spectral levelling in wdb multi-channel systems |
04/22/1999 | WO1999007087A3 Communication using spread spectrum methods over optical fibers |
04/22/1999 | DE19746350A1 Transceiver for use in wavelength multiplex transmission processes |
04/21/1999 | EP0910187A2 Coherent optical communication system |
04/21/1999 | EP0910185A1 Soliton and wavelength division multiplexed optical fibre transmission system |
04/21/1999 | EP0910183A2 Wavelength multiplexing transmission apparatus and wavelength demultiplexing reception apparatus |
04/21/1999 | EP0910182A2 Optical transmission device and optical communication system |
04/21/1999 | EP0910141A1 Optically amplifying fiber and amplifier with such a fiber |
04/21/1999 | EP0910138A1 Sub-carrier multiplexing in broadband optical networks |
04/21/1999 | CN1214581A Wavelength division multiplexed transmission system and transmitting method using the same |
04/20/1999 | US5896217 Optical transmission system, optical multiplexing transmission system, and related peripheral techniques |
04/20/1999 | US5896213 Optical fiber network system |
04/20/1999 | US5896212 Wavelength division multiplexing optical communication network |
04/20/1999 | US5896211 Optical communication system |
04/16/1999 | CA2248890A1 System for transmitting soliton signals via optical fibre with wavelength-division multiplexing |
04/15/1999 | WO1998053571A3 Distributed intelligence wavelength division multiplexed network |
04/15/1999 | DE19746578A1 Communications network for the wavelength multiplex method |
04/14/1999 | EP0909054A2 Light-wave network system with fault recovery |
04/14/1999 | EP0908035A1 Optical tdma network |
04/14/1999 | EP0908034A1 Optical transmission systems using optical amplifiers and wavelength division multiplexing |
04/14/1999 | EP0908032A1 Switchable multi-drop video distribution system |
04/14/1999 | EP0908029A1 Optical network |
04/14/1999 | EP0907993A1 Optical amplifier modules |
04/13/1999 | US5894362 Optical communication system which determines the spectrum of a wavelength division multiplexed signal and performs various processes in accordance with the determined spectrum |
04/08/1999 | WO1999017501A1 A lightware transmission telecommunications system employing a stacked matrix architecture |
04/08/1999 | WO1999017485A1 Optical channel regulator and method |
04/08/1999 | WO1999017484A1 Method and system for managing optical subcarrier reception |
04/08/1999 | WO1999017452A1 High-speed serial-to-parallel and analog-to-digital conversion |
04/08/1999 | WO1999017410A1 Optical amplifier apparatus |
04/08/1999 | CA2303841A1 Optical amplifier apparatus |
04/08/1999 | CA2273991A1 A lightwave transmission telecommunications system employing a stacked matrix architecture |
04/07/1999 | EP0907267A1 Compensation method for optical fibre transmission link and link terminals applying this method |
04/07/1999 | EP0907266A2 Optical wave network system and method of monitoring a network trouble |
04/07/1999 | EP0740892B1 Interconnected passive optical networks |
04/07/1999 | CN1213473A Channel selection in optical TDMA network |
04/06/1999 | US5892773 Radio frequency cable to optical fiber cable converter/interface |
04/06/1999 | US5892608 Optical receiver device for dark soliton lightwave |
04/06/1999 | CA2138828C Method and apparatus to compensate for differential attenuation in an optical time slot interchanger |
04/06/1999 | CA2061041C Optical communications systems for the subscriber area with optical amplifiers |
03/31/1999 | EP0905937A2 Interleaved broadcast techniques for wavelength division multiplexed systems |
03/31/1999 | EP0905936A2 WDM optical network with passive pass-through at each node |
03/31/1999 | CN1212538A Multiplexed optical transmission systems |
03/30/1999 | US5889904 Integrable fiberoptic coupler and resulting devices and systems |
03/25/1999 | WO1999014879A2 Wavelength-selective optical switching apparatus |
03/25/1999 | WO1999014873A1 Optical amplifier with gain adjustment |
03/25/1999 | CA2300886A1 Wavelength-selective optical switching apparatus, optical communications apparatus using the same, and method for use in the optical communications apparatus |
03/25/1999 | CA2248626A1 Wdm optical signal transmission apparatus |