Patents
Sitemap › H04 - Electric communication technique › H04J - Multiplex communication › H04J 14 - Optical multiplex systems
Patents for H04J 14 - Optical multiplex systems (27,009)
07/2003
07/03/2003US20030123789 Control method and device for optical filter, and optical node device
07/03/2003US20030123782 Control method and control apparatus of optical device
07/03/2003US20030123771 Optical signal modulation method and optical signal transmission system for high speed transmission system
07/03/2003US20030123137 Optical in-line amplifier and wavelength-division multiplexer
07/03/2003US20030123135 Method for gain equalization, and device and system for use in carrying out the method
07/03/2003US20030123134 Controlling apparatus and controlling method for wavelength division multiplexing optical amplifier
07/03/2003US20030123129 Control method and control apparatus of optical wavelength variable filter
07/03/2003US20030123119 Optical performance monitoring device
07/02/2003EP1324526A2 Control method and device for optical filter
07/02/2003EP1324525A2 Control method and control apparatus of optical wavelength variable filter
07/02/2003EP1324524A2 Control method and control apparatus of optical device
07/02/2003EP1324523A1 Wavelength-division multiplexing optical communication system
07/02/2003EP1324518A2 Optical switching equipment, optical transport network, and methods of using them
07/02/2003EP1323255A1 Optical switch router
07/02/2003EP1323251A1 System, device, and method for managing communication services in an optical communication system
07/02/2003EP1323249A1 Optical protection methods, systems, and apparatuses
07/02/2003EP1269672A4 Multiple input waveguide grating router for broadcast and multicast services
07/02/2003CN2559171Y Relay-less long distance optical transmission device
07/02/2003CN1427572A Optical signal converting apparatus, optical communication network and usage thereof
07/02/2003CN1427571A Light up and down path bifurcation multiplex apparatus
07/02/2003CN1427570A Single fiber bidirectional transmission multi wave length optical network system capable of realizing partial wave length reusing
07/02/2003CN1427558A Optical transmission system, optical repeater and optical transmission method
07/02/2003CN1113579C Optical switch and transmitter and receiver for multiplex transmission system including such switch
07/02/2003CN1112889C Folded garment display hanger
07/01/2003US6587616 Tuneable optical filter
07/01/2003US6587608 Reconfigurable, all optical add/drop nodes using non-interrupting switching apparatus and methods
07/01/2003US6587242 Optical transmission system
07/01/2003US6587240 Optical switching node and method for operating same
07/01/2003US6587239 Optical fiber network having increased channel capacity
07/01/2003US6587238 Transmitting an optical signal with corresponding WDM and TDM channels
07/01/2003US6587237 Metropolitan area network using low insertion loss optical add-drop multiplexers
07/01/2003CA2147035C Amplified telecommunication system for wavelength-division multiplexing transmissions
06/2003
06/26/2003WO2003052988A2 Apparatus and method for demultiplexing a polarization-multiplexed signal
06/26/2003WO2003052987A2 Efficient and scalable data transport system for dwdm cable tv networks
06/26/2003WO2003052986A1 Control of wavelength selectable filters in optical networks
06/26/2003WO2003052978A1 Protected bidirectional wdm network
06/26/2003WO2003052507A1 Gain equalization system and method
06/26/2003WO2003052488A1 Polarization interleaver and optical communication system
06/26/2003WO2003052475A1 Interleavers for awgs and interleaving method
06/26/2003WO2003005620A3 Method and arrangement for the determination and separation of single channel effects on the optical transmission of a wavelength-multiplex (wdm) signal
06/26/2003US20030118352 Optical phase modulation
06/26/2003US20030118351 Optical transmitter and code conversion circuit used therefor
06/26/2003US20030118346 Optical signal generating apparatus, method thereof, transmitting apparatus, transmitting method, receiving apparatus, receiving method, transmitting and receiving apparatus, and transmitting and receiving method
06/26/2003US20030118272 Optical switching equipment, optical transport network, and methods of using them
06/26/2003US20030118030 Optical communication system and optical communication method
06/26/2003US20030117771 WDM add/drop multiplexer module
06/26/2003US20030117693 Optical transmission system, optical repeater, and optical transmission method
06/26/2003US20030117692 Raman amplifier and optical transmission system
06/26/2003US20030117196 Ultrahigh-speed clock extraction circuit
06/25/2003EP1322057A1 WDM add/drop multiplexer module
06/25/2003EP1322053A2 Optical transmission system, optical repeater, and optical transmission method
06/25/2003CN1426540A Optical switching system with power balancing
06/25/2003CN1426189A Distributive wavelength reserving method
06/25/2003CN1425932A Device capable of simultaneously realizing optical filtering and dispersion compensation function
06/25/2003CN1112780C Bilateral zezo degree angle down and upper load optical wave division multiplex device
06/25/2003CN1112779C One-sided zero degree angle down and upper load optical wave division multiple device
06/24/2003US6584245 High speed data link including a superconductive plate assembly for use in a data transmission scheme and method
06/24/2003US6583909 Optical communication system and optical signal control method therefor
06/24/2003US6583906 Pre-shaping laser modulation signals to increase modulation index
06/24/2003US6583901 Optical communications system with dynamic channel allocation
06/24/2003US6583900 Optical transmission apparatus, optical transmission system, and optical terminal station
06/24/2003US6583898 Optical transmission device and method for checking transmission in an optical transmission device
06/24/2003US6583737 Device and method for compensating for propagation delay
06/19/2003WO2003050983A1 Signal transmission apparatus and a method of signal transmission
06/19/2003WO2003050981A2 Method and an apparatus for optical wdm signal transmission using raman amplification
06/19/2003WO2003050980A2 Wavelength division multiplexing optical performance monitors
06/19/2003WO2003050599A1 Polarization multiplexed optical clock
06/19/2003WO2003050581A1 Method and apparatus for spatial domain multiplexing in optical fiber communications
06/19/2003US20030113117 Wavelength multiplex transmission device
06/19/2003US20030112836 Multiwavelength locking method and apparatus using acousto-optic tunable filter
06/19/2003US20030112436 Apparatus and methods for depolarizing polarized light in optical fibers and in free space
06/19/2003CA2469035A1 Signal transmission apparatus and a method of signal transmission
06/19/2003CA2468498A1 Method and an apparatus for signal transmission
06/18/2003EP1320205A1 Laser frequency control method in a WDM transmission system
06/18/2003CN1424829A Stage linked body holographic grating intensive WDM implement manufacture and system thereof
06/18/2003CN1424601A Light division multiplexer with lithium niobate crystal holographic grating
06/18/2003CN1111989C Device, method and system for processing wavelength division multiplexing signals
06/17/2003US6580851 Resonator fiber bidirectional coupler
06/17/2003US6580551 Method for gain equalization, and device and system for use in carrying out the method
06/17/2003US6580550 Filter with variable transmission character, optical transmission equipment and method of optical transmission
06/17/2003US6580549 Wavelength-multiplexed light amplifying apparatus, optical amplifier and optical add-and-drop apparatus using wavelength-multiplexed light amplifying basic unit
06/17/2003US6580539 Method and apparatus for controlling the optical power of an optical transmission signal
06/17/2003US6580537 High-throughput, low-latency next generation internet networks using optical label switching and high-speed optical header generation, detection and reinsertion
06/17/2003US6580536 Power and wavelength management for mixed-rate optical data systems
06/17/2003US6580535 Polarization division multiplexing in optical data transmission systems
06/17/2003US6580534 Optical channel selector
06/17/2003US6580498 Optical return loss detector for optical transmission systems
06/17/2003US6579018 Four-fiber ring optical cross connect system using 4×4 switch matrices
06/17/2003US6578388 Grating assisted coupler devices
06/17/2003CA2254606C Ring network for sharing protection resource by working communication paths
06/12/2003WO2003049393A1 Differential encoder for an optical dqpsk modulator
06/12/2003WO2003049346A1 Efficient multi-format optical transport of broadband signals for dwdm cable tv networks
06/12/2003WO2003049345A1 Methods of connecting and testing interfaces for cwdm fiberoptic systems
06/12/2003WO2003049331A1 Optical external dpqsk modulator with subsequent prechirping
06/12/2003WO2003049330A1 Optical communication system
06/12/2003WO2003049329A1 An interface device for a fiberoptic communication network and methods of using such a device
06/12/2003WO2002047294A3 Optical performance monitoring for dwdm networks
06/12/2003US20030108352 Method of sending packet-formed information optically using different wave-lengths for address and useful information
06/12/2003US20030108284 Wavelength blocker
06/12/2003US20030108282 Methods of connecting and testing interfaces for CWDM fiber-optic systems
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