Patents
Patents for H04J 14 - Optical multiplex systems (27,009)
11/2004
11/30/2004CA2430347A1 Sonet multiplexer having front panel access to electrical and optical connectors and method for using same
11/25/2004WO2004102254A1 Optical device
11/25/2004WO2004102242A1 Fibre-optic cable detection apparatus and method
11/25/2004WO2003079596A8 Method of determining a spectral route for a given connection in an optical telecommunication network
11/25/2004WO2002087127A9 Optical cwdm-system
11/25/2004US20040234274 Processes and systems involving optical phase conjugators
11/25/2004US20040234267 Tunable optical add-drop multiplexer based on SOI wafer and manufacturing method thereof
11/25/2004US20040234266 Reconfigurable add/drop module
11/25/2004US20040234265 Wavelength division multiplexing optical transmitter using Fabry-Perot laser
11/25/2004US20040234262 Optical transmission systems including optical switching devices, control apparatuses, and methods
11/25/2004US20040234195 Optical data transmission system
11/25/2004US20040234194 Optical filtering by using an add-drop node
11/25/2004US20040234193 Optical communication method and optical communication system
11/25/2004US20040233532 Method and device for (de-)multiplexing optical signals
11/25/2004US20040233513 All optical phase insensitive wavelength converters, apparatus systems and methods
11/24/2004EP1479184A2 Apparatus and method for planned wavelength addition and removal in a wavelength division multiplexed system
11/24/2004EP1479183A1 Method of determining a spectral route for a given connection in an optical telecommunication network
11/24/2004CN2659036Y Mixed structured WDM OADM
11/24/2004CN1549489A Optical add/drop multiplexer
11/24/2004CN1549488A Wave divided multiplexing line dural fibre optical multiplexing section protecting apparatus
11/24/2004CN1549487A Testing method and apparatus for automatic light power reducing process time of dense wave divided multiplexing system
11/24/2004CN1548996A Constition and control method for light switch matrix with shielding purpose
11/24/2004CN1548995A Constitution and control method for odd-port light switch matrix
11/24/2004CN1177420C Waveguide grating array wave splitting/composing device with channel monitoring function
11/24/2004CN1177245C Polarization-independent folded waveguide grating array
11/23/2004US6823138 Optical communications terminal station, optical signal transmission method, and optical signal increasing method in wavelength multiplexing system
11/23/2004US6823104 Controlling messaging in an optical network
11/23/2004US6822975 Circuitry for mixed-rate optical communication networks
11/23/2004US6822860 WDM add/drop multiplexer module
11/23/2004CA2453079A1 Optical wavekey network and a method for distributing management information therein
11/23/2004CA2292942C Optical channel cross connect for telecommunication systems in wdm technology (wavelength division multiplexing) having a double spatial switching structure of optical flows strictly not blocking and interposed functional units operating on single channels
11/18/2004WO2004100415A1 Cdma transmitting apparatus and cdma transmitting method
11/18/2004WO2004100414A1 Method for preemphasising an optical multiplex signal
11/18/2004WO2004100410A1 Optical communication system, center equipment and user terminal
11/18/2004WO2004100409A1 Method for compensating wavelength dispersion and wavelength division multiplex transmission system using it
11/18/2004WO2004100405A2 Chromatic dispersion compensation in a bidirectional optical transmission system
11/18/2004WO2004099854A1 Optical device having demultiplexing function
11/18/2004WO2004099848A1 Dispersion slope compensator
11/18/2004WO2004099837A1 Compensation of group delay dispersion in a switchable add-drop filter.
11/18/2004US20040228635 Optical transmission systems, devices, and method
11/18/2004US20040228633 Subscriber optical distributor for broadcasting telecommunications convergence service
11/18/2004US20040228632 Single fibre bidirectional optical transmission system and single fibre bidirectional optical amplifier
11/18/2004US20040228631 Optical communication system and method for using same
11/18/2004US20040228630 Bi-directional optical add/drop multiplexer for WDM optical networks
11/18/2004US20040228000 Optical system, optical device including the same, and optical device designing method
11/18/2004US20040227996 Optical interleaver and filter cell design with enhanced thermal stability
11/18/2004CA2524832A1 Method for preemphasising an optical multiplex signal
11/17/2004EP1478183A1 Subscriber optical distributor for broadcasting-telecommunications convergence service
11/17/2004EP1478060A1 Lossless optical transmission system architecture with non-failing optical amplifiers
11/17/2004EP1476976A2 Method for extracting spectral parameters of channels from non-channelised light
11/17/2004EP1356620B1 Wdm optical communications system
11/17/2004CN1547814A Method and system for processing downstream packets of an optical network
11/17/2004CN1547675A Optical arrangement and transceiver module for bidirectional optical WDM system and optical data transmission
11/17/2004CN1547335A Ethernet passive optical network based on Wavelength Division Multiple Access and data transmission method thereof
11/17/2004CN1547068A Inhibition method for duplex Rayleigh scattering noise in Raman fiber amplifier
11/17/2004CN1547050A Optimizing combination of time division light cross connection
11/17/2004CN1547049A Multipurpose full gloss optical reshaper based on Sagnarc ring
11/17/2004CN1176534C Time slot connection method applied for passive optical network transmission system
11/16/2004US6820230 Self synchronous scrambler apparatus and method for use in dense wavelength division multiplexing
11/16/2004US6819875 Optical wavelength multiplexing transmission apparatus and optical output control method for optical wavelength multiplexing transmission apparatus
11/16/2004US6819872 Micro-optic delay element for use in a time division multiplexed system
11/16/2004US6819828 Method and device for optical fiber transmission
11/16/2004US6819666 Optical layer multicasting using multiple sub-carrier headers with header detection, deletion, and insertion via reflective single sideband optical processing
11/16/2004US6819651 Communication system, communication apparatus which can be connected to communication system, control method for control system, and control method for communication apparatus which can be connected to communication system
11/16/2004US6819481 Bidirectional wave division multiplex systems
11/16/2004US6819460 Apparatus and methods for routing of optical beams via time-domain spatial-spectral filtering
11/11/2004WO2004098102A1 Optical transmission network, optical transmission device, dispersion compensator placement computing device, and dispersion compensator placement computing method
11/11/2004WO2004028197B1 Efficient optical network design using multi-granular optical cross-connects with wavelength band switching
11/11/2004US20040223766 Network element for use in an optical communication network, in particular a DWDM communication network
11/11/2004US20040223763 Passive optical network employing multi-carrier code division multiple access
11/11/2004US20040223762 High speed optical routing apparatus and method
11/11/2004US20040223760 Optical communications access network architecture and method
11/11/2004US20040223711 Phase and polarization insensitive gates and switches
11/11/2004US20040223687 Optical add/drop multiplexer
11/11/2004US20040223222 Hermetically sealed collimator and optical interleaver design
11/11/2004US20040223210 Two stage optical amplifier
11/10/2004EP1475915A2 Passive optical network employing multi-carrier code division multiple access
11/10/2004EP1475914A1 Network element for use in an optical communication network, in particular a DWDM communication network
11/10/2004EP1474885A1 Wavelength division multiplex optical telecommunications network
11/10/2004CN1545239A Fiber time division multiplexer keeping same polarization in each path
11/10/2004CN1545238A Eight-channel full fiber coarse wavelength-division multiplexer/demultiplexer
11/10/2004CN1544988A Implement method for plane single scale intergration acoustooptic wavelength route optical switch
11/10/2004CN1544965A Plane single scale intergration acoustooptic wavelength route optical switch
11/09/2004US6816683 Wavelength division multiplexing communications network supervisory system
11/09/2004US6816681 Analogous channel method for performance monitoring and equalization in optical networks
11/09/2004US6816680 Optical communications network and nodes for forming such a network
11/09/2004US6816643 Wavelength tunable demultiplexing filter device, wavelength tunable multiplexing filter device, and wavelength routing device
11/04/2004WO2004095752A1 Data format for high bit rate wdm transmission
11/04/2004WO2004095751A1 Optical network, and method, for the transmission of wdm channels
11/04/2004WO2004095740A1 Optical receiver and optical transmission system
11/04/2004US20040220886 Communication signal resource chain assignment for optical networks subject to reach constraints
11/04/2004US20040218928 Optical communication networks and methods of controlling them
11/04/2004US20040218927 Bi-directional optical cross-connect device
11/04/2004US20040218926 Optical add/drop multiplexer
11/04/2004US20040218925 Method for reorganizing wavelength division multiplexing network using dynamic watermarks
11/04/2004US20040218924 Optical communications system and method for transmittin point-to-point and broadcast signals
11/04/2004US20040218922 System and method for WDM communication with interleaving of optical signals for efficient wavelength utilization
11/04/2004US20040218921 Optical path crossconnect system with high expanding characteristic
11/04/2004US20040218919 Method and apparatus for Q-factor monitoring using forward error correction coding
11/04/2004US20040218862 Wavelength dispersion compensator and optical transmission line