Patents
Patents for H04J 14 - Optical multiplex systems (27,009)
10/2004
10/21/2004US20040208558 Wavelength routing on an optical metro network subtended off an agile core optical network
10/21/2004US20040208557 Wavelength and/or subband assignment algorithm in all optical networks for minimal blocking
10/21/2004US20040208556 Optical network with high density, signaled sources at the edge of the network
10/21/2004US20040208555 Methods and apparatus for optical switching
10/21/2004US20040208554 Packet/TDM integrated node apparatus
10/21/2004US20040208551 Optical wavelength cross connect architectures using wavelength routing elements
10/21/2004US20040208549 Method and apparatus for dynamic bandwidth control in a broadcast optical communications network
10/21/2004US20040208548 Method of seamless migration from static to agile optical networking
10/21/2004US20040208547 QoS based protection of mesh-based intelligent optical networks
10/21/2004US20040208546 Multi-city DWDM wavelength link architectures and methods for upgrading
10/21/2004US20040208545 Optical switch with enhanced flexibility
10/21/2004US20040208543 Multiplexer and pulse generating laser device
10/21/2004US20040208542 Loss-less architecture and method for wavelength division multiplexing (WDM) optical networks
10/21/2004US20040208540 Node and wavelength division multiplexing ring network
10/21/2004US20040208539 Dynamic ADD architecture and a method for dynamically adding optical signals to all-optical networks
10/21/2004US20040208538 Optical network architecture for WDM communication
10/21/2004US20040208537 Passive optical network employing code division multiple access
10/21/2004US20040208535 Power balancing in DWDM optical networks
10/21/2004US20040208534 Method of WDM channel tagging and monitoring, and apparatus
10/21/2004US20040208532 Optical transponder with add/drop operation function of optical channels
10/21/2004US20040208531 Coordinated control of dynamic gain equalization in a wavelength division multiplexed optical system
10/21/2004US20040208528 Method for automatically provisioning a network element
10/21/2004US20040208525 SRS-immune optical performance monitoring
10/21/2004US20040208522 Optical media management channel
10/21/2004US20040208521 Main signal controlling apparatus and method in a WDM optical communications system
10/21/2004US20040208520 Optical signaling to share active channel information
10/21/2004US20040208518 Apparatus and method for planned wavelength addition and removal in a wavelength division multiplexed system
10/21/2004US20040208515 Signal to noise ratio measurement in a communications system
10/21/2004US20040208513 Management of optical links using power level information
10/21/2004US20040208512 Sharing of power level information to support optical communications
10/21/2004US20040208511 Power level management in optical networks
10/21/2004US20040208510 Optical transmission equipment
10/21/2004US20040208507 Network diagnostic tool for an optical transport network
10/21/2004US20040208506 Flexible open ring optical network and method
10/21/2004US20040208505 Method and system for testing during operation of an open ring optical network
10/21/2004US20040208504 Wavelength Exerciser
10/21/2004US20040208502 WDM device, client device, network, system and method for allocating wavelength of WDM to a client signal
10/21/2004US20040208501 Network diagnostic tool for an optical transport network
10/21/2004US20040208433 Apparatus and method for wavelength assignment in WDM optical ring networks
10/21/2004US20040208428 Wavelength-multiplexed narrow-bandwidth optical transmitter and wavelength-multiplexed vestigial-side-band optical transmitter
10/21/2004US20040208420 Optical switching device
10/21/2004US20040208419 Methods and devices to minimize the optical loss when multiplexing optical signals from a plurality of tunable laser sources
10/21/2004US20040208418 Apparatus and method for delaying optical signals for optical buffering and optical storage applications
10/21/2004US20040208414 Integrated high-speed multiple-rate optical-time-division-multiplexing module
10/21/2004US20040208233 Direct-sequence spread-spectrum optical-frequency-shift-keying code-division-multiple-access communication system
10/21/2004US20040207923 Compact, four port thin film filter optical add/drop multiplexer
10/21/2004US20040207894 Multi-function optical channel processing unit
10/20/2004EP1468515A2 Methods and apparatuses to provide a wdm passive optical network with wavelength-locked wdm light sources
10/20/2004CN2650160Y Mechanical adjusting light-modulating attenuator
10/20/2004CN1538654A Mixed type dynamic light gain equilibrium method used in WDM system
10/20/2004CN1172217C Polarized light interference method for comb-shaped sub-wave
10/20/2004CN1172216C Optical filter
10/19/2004US6807523 Method and apparatus for emulating the optical behavior of optical communication systems
10/19/2004US6807379 Device for regenerating optical signs
10/19/2004US6807377 Parallel optical transmission/reception module
10/19/2004US6807376 Gain equalizer which includes a plurality of optical filters for equalizing the gain of an optical amplifier
10/19/2004US6807373 Multiband Raman amplifier
10/19/2004US6807372 Integrated spectral encoder/decoder for optical CDMA communication system
10/19/2004US6807371 Reconfigurable add-drop multiplexer
10/19/2004US6807322 PMD compensating apparatus for controlling polarization controller based on detection of magnitude of waveform distortion
10/19/2004US6807201 Laser with phase controlling region and method for driving the same
10/14/2004WO2004088893A1 Optical branching device
10/14/2004WO2004057376A3 Optical multiplexing device
10/14/2004WO2003032036A3 TRANSMITTER PHOTONIC INTEGRATED CIRCUIT (TxPIC) CHIP WITH ENHANCED POWER AND YIELD WITHOUT ON-CHIP AMPLIFICATION
10/14/2004US20040205239 Primary/restoration path calculation in mesh networks based on multiple-cost criteria
10/14/2004US20040202484 Data transfer in an optical network communication system
10/14/2004US20040202473 Wavelength division multiplexing transmission system
10/14/2004US20040202472 Optical WDM-TDM network
10/14/2004US20040202471 System and method for an optical signal monitor
10/14/2004US20040202469 Method of controlling optical wavelength division multiplexing transmission apparatus
10/14/2004US20040202468 Lightpath exerciser for optical networks
10/14/2004US20040202442 Multichannel photocoupler
10/13/2004EP1466218A2 Optical processing
10/13/2004CN1536805A Channel protection method ketween plates in wavelength division multiplexing system
10/13/2004CN1536804A Digital clock recovery device in data communication system
10/13/2004CN1536381A Ultrasmall type optical adding and subtracting MUX
10/12/2004US6804468 WDM optical transmission system
10/12/2004US6804466 Optical coding system
10/12/2004US6804464 Flexible and low cost wavelength management for optical networking
10/12/2004US6804434 Multi-channel optical equalizer for intersymbol interference mitigation
10/12/2004US6804432 Optical add-drop multiplexer
10/12/2004US6804429 Reconfigurable wavelength multiplexers and filters employing micromirror array in a gires-tournois interferometer
10/12/2004US6804268 Method and apparatus for multi-access transmission
10/12/2004US6804116 WDM add/drop multiplexer module
10/07/2004WO2004068268A3 Transmitter and method for transmitting messages on an optical fiber
10/07/2004WO2004015962A3 Cable television system with digital reverse path architecture
10/07/2004US20040197107 Method for the ocdma encoding of optical signals
10/07/2004US20040197100 Optical transmission system and optical coupler/branching filter
10/07/2004US20040197099 Optical communication system
10/07/2004US20040196862 Method and apparatus for transmitting data in Gigabit Ethernet passive optical network
10/07/2004US20040196838 Configurable network router
10/07/2004US20040196837 Method for optimising a mostly optical network
10/07/2004US20040196557 Multilayered optical thin-film filter, method of designing the same and filter module utilizing the same
10/07/2004US20040196556 Diffraction grating for wavelength division multiplexing/demultiplexing devices
10/07/2004US20040196539 Fiber amplifier and control method thereof
10/06/2004EP1464133A1 Wdm add/drop multiplexer module
10/06/2004EP1464131A1 Optical transmission network
10/06/2004EP0931370B1 Lossless optical transmission system architecture
10/06/2004CN1534917A Light transmission apparatus with dispersion compensating function and dispersion compensating method
10/06/2004CN1534916A Method of optimizing passive filter structural sequence and wave filter system obtained using said method