| Patents for H04J 14 - Optical multiplex systems (27,009) |
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| 04/04/2000 | US6046833 Method and apparatus for operation, protection, and restoration of heterogeneous optical communication networks |
| 04/04/2000 | US6046813 Wavelength detecting device |
| 04/04/2000 | US6046525 Piezo-electric actuator control method and device and variable wavelength filter using the piezo-electric actuator device |
| 03/30/2000 | WO2000018047A2 Pre- and post-compensation techniques for wavelength division multiplexing systems |
| 03/30/2000 | WO2000018044A1 Linearization of a broadband analog link using two wavelengths |
| 03/30/2000 | WO2000018043A1 Method and system for detecting loss of signal in wavelength division multiplexed systems |
| 03/30/2000 | WO2000018042A2 Tuneable add/drop multiplexer |
| 03/30/2000 | WO2000018020A2 Gain control and shaping of edfas via dual cavity gain control |
| 03/30/2000 | WO2000007319A3 Optical cdma system using sub-band coding |
| 03/30/2000 | CA2344543A1 Wavelength division multiplexing systems |
| 03/30/2000 | CA2343724A1 Tuneable add/drop multiplexer |
| 03/30/2000 | CA2341726A1 Gain control and shaping of edfas via dual cavity gain control |
| 03/29/2000 | EP0989702A1 Local telecommunication network |
| 03/29/2000 | EP0988727A1 Span management system for wavelength division multiplexed network |
| 03/28/2000 | US6044076 Network system for transmitting a plurality of channels, and node device, packet transmission method, terminal equipment connection table generation method, and connection information registration method used in the system |
| 03/28/2000 | US6043931 Optical transmission system with dynamic compensation of the power transmitted |
| 03/28/2000 | US6043915 Stabilization of a multi-channel optical signal transmitter through correlation feedback |
| 03/28/2000 | US6043914 Dense WDM in the 1310 nm band |
| 03/28/2000 | CA2171337C Optical pulse sequence generator |
| 03/23/2000 | WO2000016139A2 Circularly polarized fiber in optical circuits |
| 03/23/2000 | WO2000002291A8 Optical gain equalizer, and optical amplifier and wavelength-division multiplex transmitter both comprising the optical gain equalizer |
| 03/23/2000 | WO1999067609B1 Optical network monitor |
| 03/23/2000 | DE19845794A1 Increasing transfer capacity of broadband optical wavelength multiplex transmitters involves demultiplexing selected wavelength regions into individually modulated channels and multiplexing |
| 03/23/2000 | CA2344682A1 Circularly polarized fiber in optical circuits |
| 03/22/2000 | EP0776556B1 Synchronous multipoint-to-point cdma communication system |
| 03/22/2000 | CN1248120A IP group communication system |
| 03/21/2000 | US6041152 Multi-channel fiber optic communications system and multiplexer/demultiplexer arrangement therefor |
| 03/21/2000 | US6040933 Method and apparatus for channel equalization in wavelength division multiplexed systems |
| 03/21/2000 | US6040932 Method and circuit for demultiplexing an optical signal |
| 03/21/2000 | US6040931 Optical transmitter, terminal-station apparatus having the optical transmitter, and optical communication system |
| 03/17/2000 | CA2282252A1 Optical device for processing a sequence of bits |
| 03/16/2000 | WO2000014917A2 Implementing an optical wdm connection |
| 03/16/2000 | WO2000014909A1 Method and apparatus for optical system link control |
| 03/16/2000 | CA2341674A1 Method and apparatus for optical system link control |
| 03/15/2000 | EP0986226A2 Ip packet communication apparatus |
| 03/15/2000 | EP0985942A2 Add/drop filter for a multi-wavelength lightwave system |
| 03/15/2000 | EP0985291A1 Signal-to-noise monitoring in wdm optical communication systems |
| 03/15/2000 | EP0985290A2 Distributed intelligence wavelength division multiplexed network |
| 03/15/2000 | EP0985289A2 Optical multiplexing and demultiplexing |
| 03/15/2000 | CN1247655A Optical fiber amplifier having variable gain |
| 03/14/2000 | US6038357 PDM-WDM for fiberoptic communication networks |
| 03/14/2000 | US6038236 Transmission control method in network system for signal transmission by plural channels and network system therefor |
| 03/14/2000 | US6038062 Optical amplifier, method of controlling the output light from the optical amplifier, optical transmission system and method of controlling an optical transmission path |
| 03/14/2000 | US6038046 Branching system with optical add drop multiplexing function |
| 03/14/2000 | US6038045 Apparatus for adding and dropping wavelength multiplex channels |
| 03/09/2000 | WO2000013374A1 Wavelength-division multiplex transmitter |
| 03/09/2000 | WO2000013361A1 Wdm ring network |
| 03/09/2000 | WO2000013350A2 Method and apparatus for optical performance monitoring in wavelength division multiplexed fiber optical systems |
| 03/09/2000 | WO2000013345A1 Optical signal quality monitor |
| 03/09/2000 | CA2341545A1 Method and apparatus for optical performance monitoring in wavelength division multi-plexed fiber optical systems |
| 03/08/2000 | EP0984580A2 Scalable optical demultiplexing arrangement for wide band dense wavelength division multiplexed systems |
| 03/08/2000 | EP0984572A1 Polarisation dispersion compensation device of the channels in a WDM signal |
| 03/08/2000 | CN1246627A Extendible and contractable optical demultiple device for broadband DWDM system |
| 03/08/2000 | CA2246799A1 Transmultiplexer |
| 03/07/2000 | US6035080 Reconfigurable add-drop multiplexer for optical communications systems |
| 03/07/2000 | US6034812 Gain equalizer and optical transmission system having the gain equalizer |
| 03/07/2000 | US6034799 Tuning source for lightwave systems |
| 03/07/2000 | US6034798 Optical network and arrangement and method in such network |
| 03/07/2000 | CA2166750C Passive optical network having amplified led transmitters |
| 03/04/2000 | CA2281298A1 Laser oscillation wavelength monitoring device |
| 03/02/2000 | WO2000011510A1 Tunable periodic filter |
| 03/02/2000 | WO1999065164A3 An optical wdm network having an efficient use of wavelengths and a node therefor |
| 03/02/2000 | DE19821245C1 Optischer Multiplexer und optischer Demultiplexer Optical multiplexer and optical demultiplexer |
| 03/02/2000 | CA2340409A1 Tunable periodic filter |
| 03/01/2000 | EP0982891A1 Device for add-dropping wavelength multiplexed optical signals |
| 03/01/2000 | EP0982883A2 Optical transmitter and optical transmission system |
| 03/01/2000 | EP0981870A2 Optical add/drop device |
| 03/01/2000 | EP0981869A1 Modulation format adjusting optical transponders |
| 03/01/2000 | CN1246005A Compact wavelength division multiplex optic transmission system with double bandwidth |
| 02/29/2000 | US6032185 Bus network with a control station utilizing tokens to control the transmission of information between network stations |
| 02/29/2000 | US6031659 Optical amplifier for wavelength-division multiplexing |
| 02/29/2000 | US6031647 Stable power control for optical transmission systems |
| 02/29/2000 | US6031645 Bi-directional optical communications subscriber transmission system using a single wavelength |
| 02/29/2000 | CA2278817A1 Scalable optical demultiplexing arrangement for wide band dense wavelength division multiplexed systems |
| 02/24/2000 | WO2000010271A2 Wavelength control in optical wdm systems |
| 02/24/2000 | WO2000010038A1 Time-wavelength multiple access optical communication systems and methods |
| 02/24/2000 | DE19936421A1 Optical add-drop multiplexer (OADM) for adding and dropping wavelength groups |
| 02/23/2000 | EP0981213A1 Wavelenght control in optical WDM systems |
| 02/23/2000 | EP0761071B1 Optical telecommunications network |
| 02/23/2000 | CN1245604A Inter-ring cross-connect for survivable multi-wavelength optical communication networks |
| 02/22/2000 | US6028934 TD multiplexing digital video signals with scramble of scrambling stages more than one greater in number than the video signals |
| 02/22/2000 | US6028881 Wavelength selectable laser source |
| 02/22/2000 | US6028697 Erbium doped optical fiber amplifier for automatically tracing and filtering wavelength of transmitted light and its operation method |
| 02/22/2000 | US6028685 Interleaved broadcast techniques for wavelength division multiplexed systems |
| 02/17/2000 | WO2000008791A1 Wdm optical communication system having reduced loss and cross-talk |
| 02/17/2000 | CA2349289A1 Wdm optical communication system having reduced loss and cross-talk |
| 02/16/2000 | EP0979564A2 Low loss, optical add/drop wdm node |
| 02/16/2000 | CN1244960A Fiber lasers with shared pump |
| 02/16/2000 | CN1244750A Warn clearning method for optic transport device |
| 02/15/2000 | US6026204 Matching apparatus for an optical communications network |
| 02/15/2000 | US6025954 Amplified telecommunication system for wavelength-division multiplexing transmissions, having an equalized reception power |
| 02/15/2000 | US6025948 Optical signal transmission installation including a repeater monitoring system |
| 02/15/2000 | US6025947 Controller which controls a variable optical attenuator to control the power level of a wavelength-multiplexed optical signal when the number of channels are varied |
| 02/15/2000 | US6025944 Wavelength division multiplexing/code division multiple access hybrid |
| 02/15/2000 | US6025943 Arrangement for the implementation of an add/drop method in wavelength-division multiplex transmission of optical signals |
| 02/15/2000 | US6025941 Stable wavelength division multiplex ring network |
| 02/15/2000 | CA2165094C Monolithic optical waveguide filters based on fourier expansion |
| 02/10/2000 | WO2000007319A2 Optical cdma system using sub-band coding |
| 02/10/2000 | WO2000007317A1 Method and apparatus for reduced interference in optical cdma |
| 02/10/2000 | WO2000007316A1 Optical cdma system |