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