Patents
Sitemap › H04 - Electric communication technique › H04J - Multiplex communication › H04J 14 - Optical multiplex systems
Patents for H04J 14 - Optical multiplex systems (27,009)
01/2004
01/01/2004US20040001715 Optical communication apparatus, system, and method that properly compensate for chromatic dispersion
01/01/2004US20040001712 Multiplex optical communication system
01/01/2004US20040001711 Lightpath segment protection for WDM networks
01/01/2004US20040001680 Passive optical channel equalizer apparatus, methods and systems
12/2003
12/31/2003WO2004002078A1 Dynamic routing in packet-switching multi-layer communications networks
12/31/2003WO2004002025A1 Method and system for power control of optical transmission span
12/31/2003WO2004002024A1 Brodcast and select all optical network
12/31/2003WO2004002001A2 Ultra-wideband communication through a wire medium
12/31/2003WO2004001916A2 Crosstalk compensation engine for for reducing signal crosstalk effects within a data signal
12/31/2003WO2003069388A3 Wavelength- and polarization-dependent ring resonator optical circuits
12/31/2003WO2003028265A3 Reconfigurable optical add/drop multiplexer having an array of micro-mirrors
12/31/2003CN2596384Y High reliability liquid crystal array variable attenuator
12/31/2003CN1464675A Micro-optical frequency-modulation element using general micro-mirror surface and method for making the same
12/31/2003CN1464674A Method for implementing optical network signal control platform
12/31/2003CN1464673A Etching diffraction grating wavelength division multiplexer
12/31/2003CN1464672A Dense wavelength division multiplex holographic demultiplexer and method for making the same
12/31/2003CN1464671A Apparatus and method for implementing optical monitoring channel of dense wavelength division multiplex system
12/31/2003CN1464317A Bulk optical interferometer
12/31/2003CN1464316A Adjustable optical wavelength exchanger
12/31/2003CN1133289C Code overlapped fast hopping optical CDMA access system
12/31/2003CN1133095C Light amplifier
12/31/2003CN1133084C Comb method for dividing waves
12/31/2003CA2485283A1 Ultra-wideband communication through a wire medium
12/30/2003US6671468 Light source and method for the transmission of spectrally coded data
12/30/2003US6671437 Method and device for tunable frequency selective filtering of optical signals
12/30/2003US6671434 Optical performance monitor
12/30/2003US6671430 Optical device, terminal apparatus, and system for wavelength division multiplexing
12/30/2003US6671426 Monolithic integrated terahertz optical asymmetric demultiplexer
12/30/2003US6671425 Method and system for acoustically tuning a light source
12/30/2003US6671084 Optical amplifier
12/30/2003US6671083 Raman amplifier and optical transmission system
12/30/2003CA2316253C Optical wavelength-division multiplex transmission network device using transceiver having 2-input/2-output optical path switch
12/25/2003US20030235412 Optical ring network with decoupled read and write fibers
12/25/2003US20030235236 Ultra-wideband communication through a wired medium
12/25/2003US20030235145 Crosstalk compensation engine for reducing signal crosstalk effects within a data signal
12/24/2003WO2003107565A1 A virtual protection method and means for the fiber path
12/24/2003WO2003107057A1 Wavelength-tunable light source and wavelength-division multiplexed transmission system using the source
12/24/2003WO2003107056A1 Tunable optical filtering device and method
12/24/2003WO2003107044A2 Method and apparatus for an optical multiplexer and demultiplexer with an optical processing loop
12/24/2003WO2003036341A3 Field reconfigurable line cards for an optical transport system
12/24/2003WO2002067475A3 Wavelength division multiplexed device
12/24/2003WO2002041067A3 Reconfigurable, all optical add/drop nodes using non-interrupting switching apparatus
12/24/2003CN2595090Y Array waveguide grating for separating light signals in multiple wavelength channels
12/24/2003CN1463109A Active stabilized time multiplexer
12/24/2003CN1463108A Optical signal level controller
12/24/2003CN1463107A Wavelength division multiplexing long-distance transmission system and method for balancing powers between multiple wavelengths
12/24/2003CN1463106A Optical transmission system capable of managing waveform
12/23/2003USRE38359 Optical signal equalizer for wavelength division multiplexed optical fiber systems
12/23/2003US6668139 Bidirectional multichannel optical telecommunication system
12/23/2003US6668138 Apparatus and methods for maintaining balanced communication channels with increasing service demands
12/23/2003US6668137 Feed forward optical power control
12/23/2003US6668106 Crosspoint microwave switching architecture for optical telecommunications
12/23/2003CA2333532C Optical and programmable fiber optic wavelength add/drop system
12/18/2003WO2003105496A1 Controller for switching wavelength-division multiplex optical signal
12/18/2003WO2003105478A1 System for return bandwidth minimization using selective sampling
12/18/2003WO2003105384A1 Maximising power in optical communication networks
12/18/2003WO2003104886A1 Wavelength divition multiplex optical regeneration system and wavelength division multiplex optical regeneration method
12/18/2003WO2003104849A2 Optical ring network with nodes and method
12/18/2003WO2003076981A3 Optical wavelength cross connect architectures using wavelength routing elements and methods for performing in-service upgrades
12/18/2003WO2003055106A3 Electrooptical device for channel equalization in a multichannel optical link
12/18/2003WO2003030426A3 Method for extracting spectral parameters of channels from non-channelised light
12/18/2003WO2003010904A3 Upgrading of passive optical network
12/18/2003US20030231888 Gain profile measuring method and system and gain profile controlling method and system
12/18/2003US20030231886 Automated optical transport system
12/18/2003US20030231885 Optical multiplexing communication system using ultra high speed signal transmission
12/18/2003US20030231884 Optical multiplexing and demultiplexing device, optical communication apparatus, and optical communication system
12/18/2003US20030231883 Method of detecting the presence of cross-talk and apparatus therefor
12/18/2003US20030231817 Method and system for acoustically tuning a light source
12/18/2003US20030231601 Method and apparatus for duplex communication in hybrid fiber-radio systems
12/18/2003US20030231391 Method and apparatus for an optical multiplexer and demultiplexer with an optical processing loop
12/18/2003US20030231311 Pilot tone multiplexing of polarization states in heterodyne optical component analysis
12/18/2003CA2486640A1 Optimising power in optical communications networks
12/17/2003EP1372281A2 Optical ring network system having a plurality of node apparatuses connected in a ring
12/17/2003EP1372276A2 Raman optical fiber amplifier using Erbium doped fiber
12/17/2003EP1372273A1 Crosstalk detection apparatus
12/17/2003EP1372272A2 Method for controlling optical gain profiles
12/17/2003EP1371189A2 Method and system for dynamic bandwidth allocation in an optical access network
12/17/2003EP1371163A2 Self-healing ring structure for the optical transmission of information by wavelength division multiplexing and corresponding add/drop-multiplexer
12/17/2003EP1371162A2 Modular all-optical cross-connect
12/17/2003EP1371158A1 Polarization mode dispersion compensation in optical transmission media
12/17/2003EP1371157A1 A compensator for compensation of higher-order chromatic dispersion
12/17/2003EP1371156A2 Dynamic gain equalizer
12/17/2003EP1371154A2 System and method for an optical information transmission
12/17/2003EP1370900A2 Fiber optical attenuator
12/17/2003EP1055143B1 Cascading of tunable optical filter elements
12/17/2003EP0981870B1 Optical add/drop device
12/17/2003CN1462127A WDM town region insertion net structure based on mixed exchange
12/17/2003CN1462126A Parallel multichunnel wavelength locking device
12/17/2003CN1462125A Adjustable multiwave lengh selection routing apparatus
12/17/2003CN1462118A Treatment method of sequence number ordering in virtual cascade connection
12/17/2003CN1131580C Frequency-stabilizing device of fiber-optical grating external cavity semiconductor laser and its frequency-stabilizing method
12/17/2003CN1131458C Method for continuous controlling per-channel output power of optical amplifier
12/16/2003US6665499 Parallel optical transmission/reception module
12/16/2003US6665496 WDM ring transmission system
12/16/2003US6665459 Wavelength selective optical filter
12/16/2003US6665308 Apparatus and method for equalization in distributed digital data transmission systems
12/16/2003US6665115 Use of OPA for switching and routing in WDM networks
12/16/2003US6665113 Wavelength converter and wavelength division multiplexing transmission method using same
12/11/2003WO2003103206A1 Hitless tunable optical wavelength filters and optical systems using such filters
12/11/2003WO2003103205A2 Optical add/drop node and method
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