Patents
Sitemap › H04 - Electric communication technique › H04B - Transmission › H04B 10 - Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
Patents for H04B 10 - Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication (73,125)
12/2005
12/15/2005US20050276614 Signal processor for converting signal
12/15/2005US20050276613 FEC enhanced system for an optical communication network
12/15/2005US20050276611 Distributed fiber sensor with detection and signal processing using polarization state management
12/15/2005US20050276608 Establishment and maintenance of optical links between optical transceiver nodes in free-space optical communications networks
12/15/2005US20050276607 Interface arrangement for opto-electronic data transfer, and plug-in opto-electronic transceiver
12/15/2005US20050276606 Wavelength division multiplexing passive optical network system and method of generating optical source
12/15/2005US20050276603 Self-monitoring passive optical network
12/15/2005US20050276602 Optical transmitter and passive optical network using the same
12/15/2005US20050276546 Bidirectional emitting and receiving module
12/15/2005US20050276320 Signal transmission system and signal transmission method
12/15/2005US20050276289 Eye diagram improving method for laser transmitter
12/15/2005DE102004025280A1 Vorrichtung zur Datenübertragung über einen Lichtwellenleiter The apparatus for data transmission over an optical waveguide
12/15/2005CA2567590A1 Optical line termination, optical access network, and method and apparatus for determining network termination type
12/15/2005CA2565709A1 Two-stage optical bi-directional transceiver
12/14/2005EP1605630A1 Optical node device, network control device, maintenance-staff device, optical network, and 3r relay implementation node decision method
12/14/2005EP1605614A1 Bi-directional optical transmission system, and master and slave stations used therefor
12/14/2005EP1605613A1 Optical signal transmission system and signal transmission method
12/14/2005EP1605612A2 Method for monitor a data transmission path
12/14/2005EP1605611A2 Submarine observation appartus and submarine observation system
12/14/2005EP1488549B1 Optical fiber receiver having an increased bandwidth
12/14/2005EP1013022B1 Arrangement and method relating to optical transmission
12/14/2005CN2746663Y Movable side fiber outlet
12/14/2005CN1708926A Receiver for angle-modulated optical signals
12/14/2005CN1708921A Geospatial lightwave communications system
12/14/2005CN1708138A Method for realizing association optical interconnection in automatic exchanging optical network
12/14/2005CN1707978A Method and apparatus for obtaining constrained path of loose routing in intelligent optical network
12/14/2005CN1707977A Signal transmission system and signal transmission method
12/14/2005CN1707780A Semiconductor device and electronic apparatus
12/14/2005CN1232066C Demultiplexing detector for WDM system
12/14/2005CN1232054C Method for obtaining single photon output according to photon number distribution in output port
12/14/2005CN1232053C Group router for optical transmission network
12/14/2005CN1231781C Optical transmitting and receiving device
12/14/2005CN1231780C Intelligent optical attenuator
12/14/2005CN1231779C Constitution and control method for light switch matrix with shielding purpose
12/14/2005CN1231775C City area or switch-in optical communication system and optical fibre used for the same system and transmission method
12/13/2005US6975812 Optical communication device
12/13/2005US6975811 Optical one-to-one protection switching apparatus
12/13/2005US6975790 Apparatus for forming a WDM signal having orthogonally polarized optical channels
12/13/2005US6975780 Electro-optical component
12/13/2005US6975642 Optoelectronic device capable of participating in in-band traffic
12/13/2005US6975586 Protection switching method and apparatus for passive optical network system
12/13/2005US6975514 Integrated VCSELs on traditional VLSI packaging
12/13/2005US6975449 Fast, continuously variable automatic gain control for optical amplifiers
12/13/2005US6975448 Automatic gain controller of optical fiber amplifier
12/13/2005US6975447 Optical fiber amplifier and dispersion compensating fiber module for optical fiber amplifier
12/13/2005US6975446 Optical amplifier, method for compensating for temperature dependency of gain flatness of an optical amplifier and optical transmission path including optical amplifier
12/13/2005US6975395 Handheld optical channel performance monitor and optical spectrum analyzer
12/13/2005US6974942 Receiving apparatus, transmitting apparatus, and communication system
12/08/2005WO2005117306A1 Method and device for remotely communicating by using photoluminescence or thermoluminescence
12/08/2005WO2005117305A1 Method and apparatus for producing high extinction ratio data modulation formats
12/08/2005WO2005117304A1 Information reception device, information transmission system, and information reception method
12/08/2005WO2005117303A1 Uart-encoded pulse-modulation technique
12/08/2005WO2005117302A1 Single mode light source having external cavity
12/08/2005WO2005117301A2 Multiple channel optical transceiver modules
12/08/2005WO2005117300A1 Method and system for data transfer
12/08/2005WO2005117285A1 Distortion compensation equalizer
12/08/2005WO2005116710A1 Apparatus for the transmission of data via a plastic optical waveguide
12/08/2005WO2004044625A3 Power source for a dispersion compensation fiber optic system
12/08/2005US20050273836 Changing communication mode in a CATV pathway using mute commands
12/08/2005US20050271398 Photo-detector arrangement and process for the calibration thereof
12/08/2005US20050271397 Control circuitry in optoelectronic modules for laser crossing point adjustment
12/08/2005US20050271396 Directly modulated laser optical transmission system
12/08/2005US20050271395 Multi-pulse heterodyne sub-carrier interrogation of interferometric sensors
12/08/2005US20050271394 Filter to improve dispersion tolerance for optical transmission
12/08/2005US20050271393 System for mitigating the effects of fiber dispersion by separate detection of two transmitted sidbands
12/08/2005US20050271392 Reach extension by using external bragg grating for spectral filtering
12/08/2005US20050271391 Dual stage modular optical devices
12/08/2005US20050271390 Optical clock extraction circuit
12/08/2005US20050271389 System and method for transporting data
12/08/2005US20050271388 Chip to chip optic alleys and method
12/08/2005US20050271387 Spectral shaping for optical OFDM transmission
12/08/2005US20050271385 Multiport optical amplifier with narrowcast power equalization
12/08/2005US20050271384 Optical transmission line monitoring system using a gain clamped optical amplifier
12/08/2005US20050271333 Light transceiver module
12/08/2005US20050271321 Test system of beam path for searching trouble in beam path from user optical terminal side
12/08/2005US20050271314 Optical add/drop device
12/08/2005US20050271099 Burst mode transmitter system
12/08/2005US20050271093 Method and system for multiplying the repetition rate of a pulsed laser beam
12/08/2005US20050271090 Method and unit for setting a wavelength to a tunable laser
12/08/2005US20050271022 Data transmitter, data receiver, communication system, control program of data transmitter, control program of data receiver, computer readable recording medium and infrared data transmitter
12/08/2005US20050270634 Method for determining the gain spectrum of a raman amplifier in a wdm-transmission system
12/08/2005US20050270616 System and method for programmable polarization-independent phase compensation of optical signals
12/08/2005US20050270544 Variable dispersion step-phase interferometers
12/08/2005US20050270404 Semiconductor device and electronic apparatus
12/08/2005US20050269498 Method and system of self-test for a single infrared machine
12/08/2005DE4218692B4 Einrichtung zum Übertragen von Daten zwischen einem rotierenden und einem stationären Teil Means for transmitting data between a rotating and a stationary part
12/08/2005DE102004023476A1 Monitoring method for an optical data transfer path, e.g. fast Ethernet, whereby an additional early warning signal is sent over the existing signal line if a monitored parameter value indicates a deterioration in signal quality
12/08/2005CA2568846A1 Method and device for remotely communicating by using photoluminescence or thermoluminescence
12/07/2005EP1603293A2 Receiver for optical signals comprising a Viterbi equalizer and a parameter estimation device
12/07/2005EP1603261A1 Methods and devices to minimize the optical loss when multiplexing optical signals from a plurality of tunable laser sources
12/07/2005EP1603257A2 Optical transmission device and optical communication system
12/07/2005EP1602952A2 Optical module and optical transmission apparatus
12/07/2005EP1602183A2 Ultrawide band radio system and pon
12/07/2005EP1602156A1 Method of manufacturing and aligning an etalon
12/07/2005EP1525684B1 Optical transmission system for transmitting optical signals having different transmission rates
12/07/2005EP1456917A4 Return path transmitter having a closed laser control loop that is employed in a hybrid fiber / coax transmission system
12/07/2005CN2745279Y Dynamic gain equalizer
12/07/2005CN1706128A Optical signal receiver, optical signal receiving apparatus, and optical signal transmitting system
12/07/2005CN1706127A Pulse train optical transmission system and transmitter and receiver apparatuses used therein
12/07/2005CN1705256A A method for accelerating convergence of link state
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