| Patents for H04J 14 - Optical multiplex systems (27,009) |
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| 04/17/2002 | CN1345142A Circuit in mixed rate optical communication network |
| 04/17/2002 | CN1083188C Method and apparatus for monitoring individual wavelength channel parameters in wavelength division multiplexer system |
| 04/16/2002 | US6374307 Non-intrusive DWDM billing system |
| 04/16/2002 | US6373622 Optical amplification apparatus |
| 04/16/2002 | US6373609 Wavelength tailored dispersion compensation apparatus |
| 04/16/2002 | US6373608 Method and device for on-line regeneration of a signal transmitted by wavelength division multiplexed solitons and optical telecommunication system comprising such a regenerating device |
| 04/16/2002 | US6373605 Optical interconnect for high speed processor |
| 04/16/2002 | US6373604 Optical MUX/DEMUX |
| 04/16/2002 | CA2254544C Method and system for controlling optical amplification in wavelength division multiplex optical transmission |
| 04/11/2002 | WO2002030027A1 Bidirectional wdm optical communication system with bidirectional add-drop multiplexing |
| 04/11/2002 | WO2002030026A1 Wavelength-division multiplexing optical communication system |
| 04/11/2002 | WO2002030025A1 Multichannel optical add-drop multiplexer |
| 04/11/2002 | WO2002030020A2 System and method for communicating optical signals upstream and downstream between a data service provider and subscribers |
| 04/11/2002 | WO2002030019A2 System and method for communicating optical signals between a data service provider and subscribers |
| 04/11/2002 | WO2002030016A2 Pump amplitude modulation for distributed raman amplifier |
| 04/11/2002 | WO2002030015A2 A wdm communication system utilizing wdm optical sources with wavelengths and light intensity, and method for stabilization thereof |
| 04/11/2002 | WO2002029453A1 A holographic multiplexer/demultiplexer and wavelength exchanger |
| 04/11/2002 | WO2001091311A3 Spintronic optical device |
| 04/11/2002 | WO2001089120A3 Asymmetric wavelength slicing based dense wavelength division multiplexing |
| 04/11/2002 | WO2001084726A3 Spintronic optical shutter |
| 04/11/2002 | WO2001080462A3 System and method for adjusting transmission power of respective light beams in a wavelength-division multiplexed network |
| 04/11/2002 | US20020041735 Multiple grating optical waveguide monitor |
| 04/11/2002 | US20020041721 Acousto-optical tunable filter, method of driving the same, and optical add/drop multiplexer |
| 04/11/2002 | US20020041618 Method, device, and system for processing optical signal |
| 04/11/2002 | US20020041574 Multiplexing and / or demultiplexing apparatus |
| 04/11/2002 | US20020041433 Method for gain equalization, and device and system for use in carrying out the method |
| 04/11/2002 | US20020041432 Wavelength division multiplexing optical amplifier with function of gain-equalizing and optical communication system |
| 04/11/2002 | US20020041416 Multi wavelength communication apparatus |
| 04/11/2002 | US20020041414 Output monitor/control apparatus and optical communication system |
| 04/11/2002 | US20020041413 Method for wavelength switch network restoration |
| 04/11/2002 | US20020041412 Versatile optical switching for wavelength-division multiplexed system |
| 04/11/2002 | US20020041411 Optical communication system |
| 04/11/2002 | US20020041410 Bi-directional wavelength switched ring optical protection switching wavelength assignment algorithm |
| 04/11/2002 | CA2429276A1 System and method for communicating optical signals between a data service provider and subscribers |
| 04/11/2002 | CA2421711A1 Pump amplitude modulation for distributed raman amplifier |
| 04/10/2002 | EP1195927A2 System and method for optical heterodyne detection of an optical signal including optical preselection that is adjusted to accurately track a local oscillator signal |
| 04/10/2002 | EP1194863A1 Data processing apparatus |
| 04/10/2002 | EP0761050B1 Optical packet processing |
| 04/10/2002 | CN2485874Y Compact multichannel intensive wavelength division multiplexer |
| 04/09/2002 | US6370286 Tunable periodic filter |
| 04/09/2002 | US6369937 Serial data to parallel data converter |
| 04/09/2002 | US6369926 Multichannel light source wavelength and strength stabilizing apparatus and method thereof |
| 04/09/2002 | US6369925 Beam combiner |
| 04/09/2002 | US6369923 Multiwavelength stabilization with a single reference comb filter in DWDM systems |
| 04/09/2002 | US6369922 Wavelength division multiplex optical transmission apparatus |
| 04/09/2002 | CA2254899C Optical synchronisation arrangement |
| 04/04/2002 | WO2002027994A1 System and method for code division multiplexed optical communication |
| 04/04/2002 | WO2002003587A3 Tunable wavelength add/drop multiplexer based on integrated optic devices |
| 04/04/2002 | WO2001061871A3 Methods and apparatus for preventing deadbands in an optical communication system |
| 04/04/2002 | WO2001004674A9 Dynamically configurable spectral filter |
| 04/04/2002 | US20020039465 Multiplexed distribution of optical power |
| 04/04/2002 | US20020039226 Optical amplifying apparatus, optical amplifying method, and optical communication system |
| 04/04/2002 | US20020039218 System and method for communicating optical signals between a data service provider and subscribers |
| 04/04/2002 | US20020039216 Method of detecting switching subnodes for switching wavelength division multiplexes |
| 04/04/2002 | US20020039214 Dynamic passive optical network (PON) using a distributed optical cross connect and dense wavelength division multiplexing |
| 04/04/2002 | US20020039213 Bidirectional WDM optical communication system with bidirectional add-drop multiplexing |
| 04/04/2002 | US20020039212 Bidirectional add/drop multiplexer and bidirectional add/ drop amplifier module for band-split bidirectional networks |
| 04/04/2002 | US20020039211 Variable rate high-speed input and output in optical communication networks |
| 04/04/2002 | DE10046585A1 Modularerweiterbares optisches ADD-DROP-Modul Modularerweiterbares optical add-drop module |
| 04/03/2002 | EP1193996A1 Method for detecting subdivisions in WDM switching nodes |
| 04/03/2002 | EP1193894A2 Optical pulse generator having narrow spectrum width |
| 04/03/2002 | EP1193886A1 Transmission device |
| 04/03/2002 | EP1192747A1 Use of cross tap equalization to reduce crosstalk arising from inadequate optical filtering in a wdm optical link |
| 04/03/2002 | EP1090472B1 Method for detecting and/or controlling the transmission wavelengths of transmitting elements of an optical wavelength multiplex transmission unit and a corresponding wavelength multiplex transmission unit |
| 04/03/2002 | EP0842574B1 Add/drop multiplexer |
| 04/03/2002 | CN1343082A Optical packet switching technique in multi-wavelength mark mode |
| 04/03/2002 | CN1343046A Optical multiplex transmission method, optical network and optical transmission device |
| 04/02/2002 | US6366718 Submarine optical gain equalizer, submarine optical transmission line and its installation method |
| 04/02/2002 | US6366585 Distributed control in a communication system |
| 04/02/2002 | US6366393 Fast gain control for optical amplifiers |
| 04/02/2002 | US6366379 Remote control device of acousto-optic tunable filter and optical transmission system containing equalizer using acousto-optic tunable filter and optical transmission system containing optical add/drop multiplexer using acousto-optic tunable filter |
| 04/02/2002 | US6366378 Optical multiplexing and demultiplexing |
| 04/02/2002 | US6366377 Optical network and switch control method for use in the optical network |
| 04/02/2002 | US6366376 Optical transmitting device using wavelength division multiplexing to transmit signal lights having frequencies arranged to eliminate effects of four-wave mixing (FWM) |
| 04/02/2002 | US6366375 Optical-signal transmission apparatus and method, and signal processing apparatus |
| 04/02/2002 | US6366373 Method of intrinsic continuous management data transmission in fiber optic communications |
| 04/02/2002 | US6366372 Burst mode wavelength manager |
| 04/02/2002 | CA2231819C Bi-directional optical transmission system |
| 04/02/2002 | CA2165403C Network system for communication with plural channels, node device and concentrator for use therein, and communication method for said network system |
| 03/28/2002 | WO2002025850A1 Add-drop filter, packet switch, wavelength multiplexing device, communication device, and communication network |
| 03/28/2002 | WO2002025840A1 Long line fiber optic communication system without repeaters or with widely spaced repeaters and with inexpensive amplifiers |
| 03/28/2002 | WO2002025368A2 Optical wavelength-converting apparatus |
| 03/28/2002 | WO2001090785A3 Optical channel shared protection ring |
| 03/28/2002 | WO2001084224A3 Method for dispersing light using multilayered structures |
| 03/28/2002 | WO2001067138A3 Devices and methods for controlling protection switching in an optical channel shared protection ring |
| 03/28/2002 | WO2000048055A9 Fiber optic dense wavelength division multiplexer having glass blocks and nonlinear interferometer for separating wavelengths |
| 03/28/2002 | US20020037131 Method for gain equalization, and device and system for use in carrying out the method |
| 03/28/2002 | US20020037020 WDM optical transmission apparatus |
| 03/28/2002 | US20020037013 Method of optically transmitting SDH or SONET signals |
| 03/28/2002 | US20020036813 Multiplexed transmission of optical signals |
| 03/27/2002 | EP1191729A1 Method for protection resources management and communication network using this method |
| 03/27/2002 | EP1191728A2 Method for compensating channel quality differences in a WDM system |
| 03/27/2002 | EP1191727A2 Modular expandable optical add-drop module |
| 03/27/2002 | EP1191726A1 A method of transmitting data symbols in a digital teletransmission network; a digital teletransmission network and network elements therefor |
| 03/27/2002 | EP1191724A2 Method for transmitting opticall SDH or SONET signals |
| 03/27/2002 | EP1190517A1 Communication systems and apparatus with synchronous orthogonal coding |
| 03/27/2002 | EP1190509A1 Method and apparatus of utilizing rf/microwave mixing techniques to select a given band of an optical transmission |
| 03/27/2002 | CN1341986A Frequency-stabilizing device of fiber-optical grating external cavity semiconductor laser and its frequency-stabilizing method |
| 03/27/2002 | CN1081858C Optical commuunication system and control method thereof |
| 03/26/2002 | US6363202 Management and control of the power levels of wavelength multiplexed optical signals |