Patents
Sitemap › H04 - Electric communication technique › H04J - Multiplex communication › H04J 14 - Optical multiplex systems
Patents for H04J 14 - Optical multiplex systems (27,009)
09/1998
09/15/1998US5808789 Optically amplifying transmission system
09/15/1998US5808787 Amplified telecommunication system for wavelength-division multiplexing transmissions
09/15/1998US5808785 Optical fiber amplifier and optical transmission system using the same
09/15/1998US5808767 Fiber optic network with wavelength-division-multiplexed transmission to customer premises
09/15/1998US5808764 Multiple star, passive optical network based on remote interrogation of terminal equipment
09/15/1998US5808763 Optical demultiplexor
09/15/1998US5808762 Telecommunication system and method for wavelength-division multiplexing transmissions with a controlled separation of the outgoing channels and capable of determining the optical signal/noise ratio
09/11/1998WO1998039882A1 Improvements in ultrafast time hopping cdma-rf
09/09/1998EP0863634A1 Reconfigurable optical ring transmission network with wavelength division multiplexing for semi-permanent links
09/09/1998EP0863625A2 Optical transmission system, optically branching apparatus and optical signal processing apparatus
09/09/1998EP0766895B1 Detection of a low level marshalling sequence
09/08/1998US5805751 Wavelength selective optical couplers
09/08/1998US5805322 Multiplex optical communication system
09/08/1998US5805321 Control unit for optical modulators producing multiplexed optical output signal
09/03/1998DE19805312A1 Optical communication device for vending machine or vehicle
09/02/1998EP0862291A2 Wavelength division multiplexing communication system
09/02/1998EP0862286A1 Optical regeneration for optical fibre transmission systems with non-soliton signals
09/02/1998EP0862078A1 Optical fiber communication system using optical phase conjugate, apparatus applicable to the system and its manufacturing method
09/02/1998EP0862071A1 Optical branching device and method of optical transmission
09/02/1998EP0861537A1 Improvements in or relating to optical add/drop wavelength division multiplex systems
09/02/1998EP0787389B1 Ranging process for point-to-multipoint communication systems
09/02/1998EP0579620B1 A terminal for a frequency divided, optical communication system
09/01/1998US5801879 Device and method to supress Q-switching in an optical amplifying device
09/01/1998US5801864 Method for transmitting optical signals to terminals
09/01/1998US5801862 Synchronous modulation method and apparatus for in-line regeneration of a WDM soliton signal, and an optical telecommunications systems using the method
09/01/1998US5801861 Communication system for performing wavelength division multiplexing communications, and wavelength control method used in the system
09/01/1998US5801860 Wavelength division multiplexing transmission system comprising a feedback section for transmitting a light power level signal from a light receiver to a light transmitter
09/01/1998US5801859 Network system having transmission control for plural node devices without arbitration and transmission control method therefor
09/01/1998US5801858 Optical transmission systems using optical amplifiers and wavelength division multiplexing
09/01/1998CA2138827C Optical time slot interchanger apparatus and method of operation
08/1998
08/26/1998EP0860727A2 Device to switch optical images between different channels
08/26/1998CN1191428A Single sideband modulators
08/26/1998CN1191426A 突发模式波长管理器 Burst mode wavelength Manager
08/25/1998US5798858 Method and apparatus for reducing adverse effects of optical beat interference in optical communication systems
08/25/1998US5798855 Optical monitoring channel for wavelength division multiplexed optical communication system
08/20/1998WO1998036516A1 Optical wavelength division multiplex transmitter
08/20/1998WO1998036514A1 Wavelength division multiplexing optical transmission system
08/20/1998WO1998036513A1 Optical fiber amplifier having variable gain
08/20/1998WO1998036302A1 Optical devices and methods
08/20/1998WO1998036294A2 Pump wavelength tuning of optical amplifiers
08/20/1998WO1998025365A3 Inter-ring cross-connect for survivable multi-wavelength optical communication networks
08/20/1998DE19705669A1 Optischer Wellenlängenmultiplex-Sender Optical wavelength-division multiplexed transmitter
08/20/1998CA2280964A1 Optical devices and methods
08/20/1998CA2280962A1 Optical fiber amplifier having variable gain
08/19/1998EP0859486A2 System and method for synchronizing an optical source and a router in a wavelength division multiplexed fiber optic network
08/19/1998EP0859484A2 Fault restoration control method and it's apparatus in a communication network
08/19/1998EP0859482A1 Optical regeneration for soliton wdm fiberoptic transmission systems
08/19/1998EP0859481A1 WDM optical fiber communication system with improved dispersion compensation
08/19/1998EP0859480A2 Broadband flat gain optical amplifier
08/19/1998EP0859435A2 Pump wavelength tuning of optical amplifiers and use of same in wavelength division multiplexed systems
08/19/1998EP0859249A1 Optical fiber wavelength multiplexer and demultiplexer
08/19/1998EP0858695A1 Apparatus and method for digital data transmission
08/18/1998US5796765 Optical pulse seqeunce generator
08/18/1998US5796503 Optical communication system wherein optical beat interference at the center is reduced
08/18/1998US5796502 Multiple independent/dependent monochromatic light frequency fiber optic communication system and method
08/18/1998US5796501 Wavelength division multiplexing optical communication network
08/18/1998CA2226955A1 Optical regeneration for optical fibre transmission systems carrying non-soliton signals
08/18/1998CA2226950A1 Optical regeneration for optical fibre transmission systems with soliton signals and wavelength-division multiplexing
08/18/1998CA2070815C Optical fibre communications system
08/17/1998CA2228122A1 Pump wavelength tuning of optical amplifiers and use of same in wavelength division multiplexed systems
08/13/1998WO1998035459A1 Method and device for on-line regeneration of a signal transmitted by wavelength division multiplexed solitons and optical telecommunication system comprising such a regenerating device
08/12/1998EP0559659B1 Passive optical network
08/11/1998US5793912 Tunable receiver for a wavelength division multiplexing optical apparatus and method
08/11/1998US5793910 Method and circuit arrangement for frequency stabilization of a WDM multiplexer/demultiplexer
08/11/1998US5793908 Wavelength multiplexed light transfer unit and wavelength multiplexed light transfer system
08/11/1998US5793759 Apparatus and method for digital data transmission over video cable using orthogonal cyclic codes
08/11/1998US5793510 Parallel optical transmission system and optical transmission apparatus
08/11/1998US5793509 Telecommunications network
08/11/1998US5793508 Wavelength-division multiplexing telecommunication system and method providing a controlled separation of the output channels
08/11/1998US5793507 Discretely chirped multiple wavelength optical source for use in a passive optical network telecommunications system
08/11/1998US5793506 Optical transmission system for cable television signals and video and telecommunications signals
08/06/1998WO1998034364A1 Add/drop multiplexer
08/06/1998WO1998034360A1 Switchable multi-drop video distribution system
08/06/1998WO1998034306A1 Fiber lasers with shared pump
08/06/1998CA2276419A1 Fiber lasers with shared pump
08/06/1998CA2250438A1 Switchable multi-drop video distribution system
08/05/1998EP0856964A2 Optical path signal termination equipment
08/05/1998EP0856752A1 Magnetically tunable optical fiber gratings
08/05/1998EP0856216A1 Level control process for optical fibre transmission paths
08/04/1998US5790591 Spread spectrum transmitter and communications system using multiple spreading codes
08/04/1998US5790301 Optical filter module and optical amplification using it
08/04/1998US5790294 Line monitoring method and line monitoring apparatus
08/04/1998US5790289 WDM optical communication method with pre-emphasis technique and an apparatus therefor
08/04/1998US5790288 Transport network with high transmission capacity for telecommunications
08/04/1998US5790287 Optical communication system with improved maintenance capabilities
08/04/1998CA2130639C Optical passband filter
07/1998
07/30/1998WO1998033289A2 Switchable wavelength router
07/30/1998WO1998033287A1 Communications system with star topology
07/29/1998EP0855814A2 Wavelength division multiplexing transmitter receiver and redundant system switching method
07/29/1998EP0855810A2 Burst mode wavelength manager
07/29/1998EP0855617A2 Single sideband modulators
07/29/1998CN1189269A Self-healing network
07/28/1998US5786918 Optical communication system and optical transmitting device
07/28/1998US5786916 Optical-wavelength interchanger element and optical-wavelength interchanger device
07/28/1998US5786915 Optical multiplexing device
07/28/1998US5786914 WDM channel insertion
07/28/1998US5786913 Optical TDMA ring network with a central transmitting and receiving device
07/28/1998CA2098094C Optical communications system
07/28/1998CA2078076C Optical communication system
07/23/1998DE19702743A1 Integrated optical switching circuit
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