Patents
Sitemap › H04 - Electric communication technique › H04J - Multiplex communication › H04J 14 - Optical multiplex systems
Patents for H04J 14 - Optical multiplex systems (27,009)
12/1999
12/21/1999US6005699 Optical wavelength multiplexing system
12/21/1999US6005697 Multi-wavelength cross-connect optical network
12/19/1999CA2272469A1 Optical communication system
12/16/1999WO1999065174A1 Method and device for dropping optical channels in an optical transmission system
12/16/1999WO1999065165A1 An add and drop node for an optical wdm network having traffic only between adjacent nodes
12/16/1999WO1999065164A2 An optical wdm network having an efficient use of wavelengths and a node therefor
12/16/1999WO1999057850A9 Sonet jo byte message monitoring system
12/16/1999CA2334542A1 Method and device for dropping optical channels in an optical transmission system
12/15/1999EP0964275A1 Method and device for dropping optical channels in an optical transmission system
12/15/1999EP0963677A1 Hybrid wavelength-interchanging cross-connect
12/14/1999US6002820 Optical branching and insertion apparatus
12/14/1999US6002513 Optical modulator providing independent control of attenuation and spectral tilt
12/14/1999US6002504 Device for the frequency transposition of optical signals
12/14/1999US6002503 Optical add/drop multiplexer
12/14/1999CA2155693C Performance monitoring and fault location in optical transmission systems
12/12/1999CA2273778A1 Telecommunications system of the wavelength division multiplexing type comprising an optical channel analyser
12/09/1999WO1999063694A1 Multiwavelength mode-locked dense wavelength division multiplexed optical communication systems
12/09/1999WO1999063693A1 Centralized wavelength distribution for wavelength division multiplexed systems
12/09/1999WO1999044317A3 Protection of wdm-channels
12/09/1999CA2333713A1 Multiwavelength mode-locked dense wavelength division multiplexed optical communication systems
12/09/1999CA2333604A1 Centralized wavelength distribution for wavelength division multiplexed systems
12/08/1999EP0963062A1 Ground station communication method through a satellite constellation
12/08/1999EP0820666B1 Optical multichannel system
12/08/1999CN1237840A Signal monitoring apparatus for wavelength division multiplexed optical telecommunication networks
12/07/1999US5999293 Optical switch
12/07/1999US5999292 Sagnac interferometer amplitude modulator based demultiplexer
12/07/1999US5999291 Centralized wavelength distribution for wavelength division multiplexed systems
12/07/1999US5999288 Connection set-up and path assignment in wavelength division multiplexed ring networks
12/07/1999US5999287 Node in optical TDM network
12/07/1999CA2176131C Interactive information services control system
12/02/1999WO1999062202A1 Bidirectional dispersion compensation system
12/02/1999WO1999062201A1 Method for constructing a hierarchic multi-ring network on fiber-optic communication lines, variants and basic network for realising the same
12/02/1999CA2333412A1 Bidirectional dispersion compensation system
12/01/1999EP0961424A2 Optical transmitter, terminal device, and optical communicaton system having the optical transmitter
12/01/1999EP0960491A1 Optical fiber amplifier having variable gain
12/01/1999EP0960349A1 Optical devices and methods
12/01/1999EP0808533A4 Point-to-multipoint broadband services drop with multiple time slot return channel for customer premises equipement
12/01/1999CN1237293A System with optical amplifier
12/01/1999CN1237051A Light wavelength-multiplexing systems
12/01/1999CN1236897A 光学开关和光学网络 Optical switches and optical network
11/1999
11/30/1999US5995689 Optical divider
11/30/1999US5995687 Circuit for testing an optical communication system
11/30/1999US5995276 Wavelength-division-multiplexing optical amplifier device and wavelength-division-multiplexing optical transmission system
11/30/1999US5995274 Multi-wavelength light amplifier
11/30/1999US5995257 Add/drop multiplexer for multiwavelength pulse oriented optical communications systems
11/30/1999US5995256 Method and system for managing optical subcarrier reception
11/30/1999US5995255 Concatenated fiber grating optical monitor
11/30/1999US5995254 Wavelength division multiplexing light transmitting system
11/29/1999CA2273582A1 Optical communication system
11/25/1999WO1999060740A1 Ring network utilizing wave division multiplexing
11/25/1999WO1999060731A1 Optical surface plasmon-wave communications systems
11/25/1999WO1999050979A3 Optical fibre amplifier having a controlled gain
11/25/1999DE19822616A1 Lichtquelle sowie Verfahren für die Übertragung von spektralkodierten Daten Light source and method for transmitting data spektralkodierten
11/24/1999EP0959640A2 Optical switch and optical network
11/24/1999EP0959579A2 Optical add/drop Multiplexer/demultiplexer
11/24/1999EP0959578A2 Wavelength division multiplexing system and its termination
11/24/1999EP0959577A2 Optical signal repeating and amplifying device and optical level adjusting device
11/24/1999EP0959576A2 Light source and method for transmitting spectrally encoded data
11/23/1999US5991477 Optical transmission system, optical multiplexing transmission system, and related peripheral techniques
11/23/1999US5991308 Lower overhead method for data transmission using ATM and SCDMA over hybrid fiber coax cable plant
11/23/1999US5991059 Marshalling in optical TDMA systems
11/21/1999CA2272763A1 Optical communication system
11/18/1999WO1999059281A1 Optical multiplexer and optical demultiplexer
11/18/1999WO1999058029A1 Folded garment display hanger
11/18/1999WO1999041870A9 Self-synchronization of an optical packet network using seed pulses extracted from within the packets
11/17/1999EP0956624A1 Fiber lasers with shared pump
11/17/1999CN1235721A Programmable wavelength router
11/17/1999CN1235439A Optical supervisory transmission signal control device
11/16/1999US5987303 Wireless transmission using fiber link
11/16/1999US5986800 Optical amplification apparatus
11/16/1999US5986783 Method and apparatus for operation, protection, and restoration of heterogeneous optical communication networks
11/16/1999US5986782 Signal-to-noise monitoring in WDM optical communication systems
11/16/1999CA2149088C Information sharing method for a plurality of nodes in communication system and communication system
11/16/1999CA2073080C Optical time-division multiplexing
11/11/1999WO1999057850A2 Sonet jo byte message monitoring system
11/11/1999WO1999057834A1 Real time wavelength monitoring circuit
11/11/1999WO1999057833A1 Automatic isolation in loops
11/11/1999WO1999041855A3 Optical transmission system with a receiver using full optical clock recovery
11/11/1999CA2330791A1 Real time wavelength monitoring circuit
11/11/1999CA2330768A1 Automatic isolation in loops
11/11/1999CA2295700A1 Sonet jo byte message monitoring system
11/11/1999CA2271553A1 Level-flattening circuit for wdm optical signals
11/10/1999CN1234660A Light transmission system and method for monitoring said same
11/09/1999US5982791 Wavelength tracking in adjustable optical systems
11/09/1999US5982518 Optical add-drop multiplexers compatible with very dense WDM optical communication systems
11/04/1999WO1999056426A1 Wdm ring transmission system
11/04/1999WO1999056159A1 Segmented complex diffraction gratings
11/04/1999WO1999044298A3 Method and apparatus for improving spectral efficiency in wavelength division multiplexed transmission systems
11/04/1999WO1999041857A3 Optical telecommunications network
11/03/1999EP0954128A2 Star type passive optical network
11/03/1999CN1233892A Optical transmission system, and terminal and optical repeater
11/02/1999US5978529 Gain equalizer and optical amplifying transmission line
11/02/1999US5978131 In-fiber two-stage amplifier providing WDM signal conditioning
11/02/1999US5978122 Noise suppression method for wavelength division multiplexing transmission system
11/02/1999US5978119 System and method for synchronizing an optical source and a router in a wavelength division multiplexed fiber optic network
11/02/1999US5978117 Dynamic reconfiguration of a wireless network using flexible wavelenght multiplexing
11/02/1999US5978116 Programmable wavelength router
11/02/1999US5978115 Span management system for wavelength division multiplexed network
11/02/1999US5978114 Modular cascaded Mach-Zehnder DWDM components
11/02/1999CA2148154C Low power optical network unit
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