Patents
Patents for H04J 14 - Optical multiplex systems (27,009)
06/2004
06/08/2004US6748175 Optical ring network having enhanced security and reduced loss
06/08/2004US6748174 WDM optical network with passive pass-through at each node
06/08/2004US6748173 Optical transmission system and optical transmission apparatus used therefor
06/08/2004US6748172 Multi-channel light source generator in a WDM optical communication system
06/08/2004US6748171 Method and system for providing multiple classes of services in dense wavelength division multiplexing optical networks
06/08/2004US6748170 Method for optimizing a mostly optical network
06/08/2004US6748152 Optical transmission system
06/08/2004US6748150 Apparatus and method for managing dispersion within an optical add/drop module
06/08/2004US6748136 Wide band Raman amplifiers
06/08/2004US6748135 Method for determining interactions between a number of optical channels in a wavelength division multiplexed signal
06/08/2004US6748134 Frequency allocation scheme and transmission system for polarization and wavelength division multiplexed signals with left and right side filtering
06/08/2004US6748127 Transmission of orthogonal circular polarizations on a fiber
06/08/2004US6747792 Optical amplifying method
06/08/2004US6747790 Optical amplifier for amplifying multi-wavelength light
06/05/2004CA2449592A1 Method and apparatus for optical add/drop multiplexing in optical networks
06/05/2004CA2429083A1 Method and apparatus for controlling a variable optical attenuator in an optical network
06/04/2004CA2410770A1 Sonet like link and chassis interconnect
06/03/2004WO2004047349A1 Reconfigurable optical add/drop multiplexer with buried dispersion compensation module
06/03/2004WO2004047341A1 Transmission apparatus and transmission apparatus path selection method
06/03/2004WO2004028091A3 Optical network with distributed sub-band rejections
06/03/2004WO2004001916A3 Crosstalk compensation engine for for reducing signal crosstalk effects within a data signal
06/03/2004WO2003073671A3 Apparatus and method for planned wavelength addition and removal in a wavelength division multiplexed system
06/03/2004US20040105678 Method and apparatus for providing simultaneous channel power equalization and monitoring
06/03/2004US20040105676 Video delivering system and video delivering device for vehicle
06/03/2004US20040105675 Optical packet tray router
06/03/2004US20040105389 Method for hybrid network planning
06/03/2004US20040105383 Network auto-provisioning and distributed restoration
06/03/2004US20040105364 Wavelength associative addressing system for WDM type light packet steering
06/02/2004EP1424798A2 Wavelength allocation method of signal light, optical transmission apparatus and wavelength division multiplexing optical transmission system using the method
06/02/2004EP1423933A2 Technique for channel count and power control in optical networks
06/02/2004CN2619422Y Device for eliminating circular net self exciting in light transmission system
06/02/2004CN1502183A Wavelength division multiplexed optical communication system having a reconfigurable optical switch and a tunable backup laster transmitter
06/02/2004CN1501619A Optical fibre for wavelength division multiplexed system and manufacturing method thereof
06/02/2004CN1501618A Optical transmission systems using optical amplifiers and wavelength division multiplexing
06/02/2004CN1501617A Optical signal transmission method with long span and over-long span demultiplexing
06/01/2004US6744990 WDM optical transmission system and an optical transmission line thereof
06/01/2004US6744989 Optical transmission system, its method, and optical amplification transmission line
06/01/2004US6744988 Device for applying time-delays to optical signals
06/01/2004US6744986 Tunable wavelength add/drop multiplexer based on integrated optic devices
06/01/2004US6744984 Method and system for alternative transmission traffic routing in dense wavelength division multiplexing optical networks
06/01/2004US6744983 Optical switching matrix
06/01/2004US6744964 System and method for controlling variable optical attenuators
06/01/2004US6744943 Add-drop filter utilizing chiral elements
06/01/2004US6744760 Node configurations within communication systems
06/01/2004US6744495 WDM measurement system
05/2004
05/27/2004WO2004045114A1 Optical receiver
05/27/2004WO2003102659A3 Demultiplexing optical signal receiver photonic integrated circuit (rxpic) and associated transmitter and method of testing a photonic integrated circuit
05/27/2004US20040101307 Optical device, terminal apparatus, and system for wavelength division multiplexing
05/27/2004US20040101306 Optical module
05/27/2004US20040101305 Fabry-perot laser apparatus mode-locked to multi-frequency lasing light source and optical transmission apparatus using the same
05/27/2004US20040101302 System for providing dynamic service using optical sub-carrier multiplexing type multi-channel access and method of controlling the same
05/27/2004US20040101301 Optical pulse timing detection apparatus, optical pulse timing detection method, optical pulse timing adjustment apparatus, and optical pulse timing adjustment method
05/27/2004US20040101242 Optical multi-band device with grating
05/27/2004US20040101236 Reconfigurable optical add/drop multiplexer with buried dispersion compensation module
05/27/2004US20040100695 Receiver for OTDM/PDM optical signals
05/27/2004US20040100684 Line amplification system for wavelength switched optical networks
05/27/2004US20040100682 Multi-wavelength generating method and apparatus based on flattening of optical spectrum
05/26/2004EP1422967A2 Optical communication system
05/26/2004EP1422966A2 Wavelength converter and optical cross-connect system using the same
05/26/2004EP1422854A2 Optical communication system
05/26/2004EP1422794A2 Fabry-perot laser apparatus mode-locked to multi-frequency lasing light source and optical transmission apparatus using the same
05/26/2004EP1421421A1 Method and apparatus for optical signal processing using an optical tapped delay line
05/26/2004EP1057298A4 Self-synchronization of an optical packet network using seed pulses extracted from within the packets
05/26/2004CN1500324A 光束组合器 Beam combiner
05/26/2004CN1500321A Survival DWDM system
05/26/2004CN1499769A Passive optical fiber net of loop of multiple wave length light generated by utilizing central location
05/26/2004CN1499228A Wavelength division multiplexing device and manufacture method
05/26/2004CN1151625C Routing and wavelength distributing method for optical wavelength division multiplexing network
05/26/2004CN1151624C Nodal structure of staging wave separation shared system
05/26/2004CN1151616C Wave division multiplex multi-use communication metwork remote-control system and terminal station
05/25/2004US6741813 Interference-based DWDM optical interleaver using beam splitting and selective phase shifting and re-combining
05/25/2004US6741812 Synchronous digital communications system
05/25/2004US6741811 Optical cross-connect device and system having the device
05/25/2004US6741810 Signal demultiplexing device and signal routing device in high speed transmission system
05/25/2004US6741771 Structure for adjusting waveforms of optical filters used in a dense wavelength division multiplexing system
05/25/2004US6741408 Thermally stable mounting for a diffraction grating device
05/25/2004US6741389 Optical transmission system and optical transmission method utilizing Raman amplification
05/21/2004WO2004042966A1 Method for carrying out infrared data transmission
05/21/2004WO2003073137A8 Systems and methods for active monitoring and management of fiber links
05/21/2004WO2003027739A8 Littrow grating based oadm
05/21/2004WO2003026179A8 Mapping of bit streams into mpeg frames
05/21/2004CA2444078A1 Reconfigurable optical add/drop multiplexer with buried dispersion compensation module
05/20/2004US20040096226 Method and device for receiving a signal in optical cdma system
05/20/2004US20040096221 Wavelength division multiplexing source using multifunctional filters
05/20/2004US20040096220 Optical transmisssion system and optical transmission device
05/20/2004US20040096219 Grooming of channels in wavelength devision multiplexed optical communication systems
05/20/2004US20040096217 Compensator for compensation of higher-order chromatic dispersion
05/20/2004US20040096216 Transmission route applicability inspection system in wavelength division multiplexing optical transmission network system
05/20/2004US20040096213 Method and apparatus for deploying forward error correction in optical transmission networks and the deployment of photonic integrated circuit (PIC) chips with the same
05/20/2004US20040096143 Coherent optical detector and coherent communication system and method
05/20/2004US20040095636 Dynamic optical spectral control scheme for optical amplifier sites
05/19/2004EP1420608A1 Systems and devices for interconnected optical WDM networks utilising preassigned sub-bands
05/19/2004EP1420520A2 Despreading of a CPM (continuous phase modulation) spread-spectrum signal
05/19/2004EP1419595A1 Optical transmission systems, devices, and methods
05/19/2004CN1498477A Grooming of channels in WDM aptical communication systems
05/19/2004CN1498476A WDM optical communications system
05/19/2004CN1497895A 光传输系统 The optical transmission system
05/19/2004CN1497894A Dense wave division multiplex passive optical network system for self-implant locked Fabry-Perot laser diode
05/19/2004CN1497892A Optical transmitter, optical receiver and optical transmission system using them
05/19/2004CN1497247A Optical sampling system of simultaneous monitoring intensity modulation and frequency modulation