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) |
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06/17/2004 | US20040114928 Access method for data packet networks |
06/17/2004 | US20040114927 Regulating radiation component power in wavelength division multiplexed optical communication systems |
06/17/2004 | US20040114926 BPSR optical transmission node |
06/17/2004 | US20040114925 Method and system for providing protection in an optical communication network |
06/17/2004 | US20040114924 System and method for managing an optical networking service |
06/17/2004 | US20040114923 OSNR monitoring method and apparatus using tunable optical bandpass filter and polarization nulling method |
06/17/2004 | US20040114863 Colorless tunable dispersion compensator |
06/17/2004 | US20040114857 Tunable pulse width generation of return-to-zero format for system optimization |
06/17/2004 | US20040114852 Integrated wavelength combiner/locker |
06/17/2004 | US20040114650 Optical transmission module |
06/17/2004 | US20040114646 Calibration of a multi-channel optoelectronic module with integrated temperature control |
06/17/2004 | US20040114215 Control system and method for an optical amplifier |
06/17/2004 | US20040114213 Optical repeater having independently controllable amplification factors |
06/17/2004 | US20040114212 Wideband Amplifier with erbium-doped fiber |
06/17/2004 | US20040114149 WDM channel monitor and wavelength locker |
06/17/2004 | US20040113060 Chromatic dispersion compensating apparatus and controlling method of the same |
06/17/2004 | US20040113056 Optical interrogation system and sensor system |
06/17/2004 | DE10307542A1 Determining optical fiber defect locations involves emitting light pulses while simultaneously feeding pulses into shift register for simultaneous comparison of sub-patterns after each register stage |
06/17/2004 | DE10255165A1 Coupling out monitor signals from message transmission paths involves coupling out from before saturatable element so power of transmission signals reduced by coupling out exceeds saturation power |
06/17/2004 | CA2504622A1 Control of peaking of laser driver current to improve eye quality |
06/16/2004 | EP1429486A2 Optical transmission node for a bidirectional path switched ring |
06/16/2004 | EP1429479A1 Method and device for realising an optical link with laser pulses |
06/16/2004 | EP1429477A2 Optical power measuring system, terminal station and repeater therefor |
06/16/2004 | EP1429476A2 Optical power measuring system, terminal station and repeater therefor |
06/16/2004 | EP1429475A2 Optical power measuring system, terminal station and repeater therefor |
06/16/2004 | EP1429304A2 Driver information system |
06/16/2004 | EP1429164A2 Optical communication device |
06/16/2004 | EP1428407A1 Optical switching device for wavelength division multiplex (wdm) telecommunications network |
06/16/2004 | EP1428333A2 Ring network made using a dual optical data bus |
06/16/2004 | EP1166469A4 Atmospheric optical communication |
06/16/2004 | EP1078481A4 Method and apparatus for automated time domain monitoring in optical networks |
06/16/2004 | EP0880832B1 Optical pulse source |
06/16/2004 | EP0872048A4 Discriminating infrared signal detector and systems utilizing the same |
06/16/2004 | EP0845175B1 Compensation of dispersion |
06/16/2004 | EP0804835B1 Multi-tone phase modulation for light wave communication system |
06/16/2004 | CN1505355A Terminal, data distribution system comprising such a terminal and method of re-transmitting digital data |
06/16/2004 | CN1505302A A broad band online fineness compensation arrangement |
06/16/2004 | CN1505287A Method and system for determining optical dispersion displacement optical fiber L band transmission system |
06/16/2004 | CN1505286A Method for generating sideband reinforcement nulling operation code and transmitter therefor |
06/16/2004 | CN1505285A Method and system for determining optical dispersion displacement optical fiber C band transmission system |
06/16/2004 | CN1505284A A distributed fault-locating method in a total optical network |
06/16/2004 | CN1505283A Optical fiber communication network protection system |
06/16/2004 | CN1505282A Forward error correction encoder |
06/16/2004 | CN1505281A Optical network terminal apparatus |
06/16/2004 | CN1504789A 光学系统模块 Optical System Module |
06/16/2004 | CN1504365A Electronic license tag for automobile |
06/16/2004 | CN1154281C High-capacity fibre-optical network working in 1.4 mu m range |
06/16/2004 | CN1154280C Wavelength dispersion compensation apparatus in wavelength multiplex transmission system |
06/16/2004 | CN1154264C Signal transmitter with automatic output control |
06/16/2004 | CN1154014C Optic amplifier, and optic transmission system using the same |
06/15/2004 | US6751422 Spatial light communication equipment comprising angle error detection and alignment units |
06/15/2004 | US6751421 Optical fiber communication system employing wavelength converter for broadband transmission |
06/15/2004 | US6751420 Infrared transceiver assembly for asymmetric data transmission |
06/15/2004 | US6751418 WDM optical network with passive pass-through at each node |
06/15/2004 | US6751417 Fiber and wire communication system |
06/15/2004 | US6751414 Circuit and channel assignment plan for optical transmissions |
06/15/2004 | US6751413 Channel mask definition for monitoring wavelength division multiplexing transmission systems |
06/15/2004 | US6751385 Method and device for measuring the waveform of an optical signal |
06/15/2004 | US6751371 Method and apparatus for optical element management |
06/15/2004 | US6751013 Gain-clamped semiconductor optical amplifiers with adjustable gain levels |
06/15/2004 | US6751012 Method and apparatus for measuring noise figure in optical amplifiers |
06/15/2004 | US6751002 Method and apparatus for semiconductor-based integrated polarization modulator/compensator |
06/15/2004 | US6750973 Test structure for simultaneously characterizing two ports of an optical component using interferometer-based optical network analysis |
06/15/2004 | US6750956 Method and apparatus for on-line monitoring of polarization mode dispersion in a transmission system |
06/15/2004 | US6750463 Optical isolation apparatus and method |
06/15/2004 | US6750443 Variable optical attenuator having a splitter to monitor light signals |
06/15/2004 | US6750440 Opto-electrical actuation system and method |
06/10/2004 | WO2004049718A1 Transmitter in a digital return link for use in an hfc network |
06/10/2004 | WO2004049603A1 Information support system |
06/10/2004 | WO2004049602A2 Optical frequency modulated transmitter |
06/10/2004 | WO2004049601A1 Distribution of a synchronization signal in an optical communication system |
06/10/2004 | WO2004049054A1 Light source in optical transmission system, waveform shaper, optical pulse train generator, and optical reproduction system |
06/10/2004 | WO2004048920A1 Method and device for ascertaining defects in optical fibers |
06/10/2004 | WO2004011950A3 High sensitivity, high resolution detection of signals |
06/10/2004 | US20040111753 Centralized nodes in a fiber optic network |
06/10/2004 | US20040109697 Dynamic distortion control |
06/10/2004 | US20040109696 Optical transmission controller |
06/10/2004 | US20040109694 Gain setting method in wavelength division multiplex transmission equipment |
06/10/2004 | US20040109692 FSO communication systems having high performance detectors |
06/10/2004 | US20040109691 Optical pulse separation method and optical pulse separation device |
06/10/2004 | US20040109686 Architecture for metropolitan dense wavelength division multiplex network with all-optical reference node |
06/10/2004 | US20040109685 Method and apparatus for optical add/drop multiplexing in optical networks |
06/10/2004 | US20040109684 Bidirectional wavelength division multiplexing self-healing ring network |
06/10/2004 | US20040109662 Method and system for operating a plurality of electronic variable optical attenuators (eVOAs) |
06/10/2004 | US20040109661 Method and apparatus for controlling a variable optical attenuator in an optical network |
06/10/2004 | US20040109655 Method and system for dispersion maps and enhanced distributed gain effect in long haul telecommunications using distributed and remotely pumped erbium-based amplification |
06/10/2004 | US20040109639 Method of optically producing clock and apparatus thereof |
06/10/2004 | US20040109638 Gain equalizer and optical amplification apparatus |
06/10/2004 | US20040109637 Variable optical dispersion compensator |
06/10/2004 | US20040109445 Systems and methods for selectively diverting data from nodes |
06/10/2004 | US20040109407 Path segment protecting p-cycles |
06/10/2004 | US20040109229 Demultiplexer for optical time-division multiplexed signals |
06/10/2004 | US20040109227 Optical fiber amplifier having automatic power control function and automatic power control method |
06/10/2004 | US20040109224 Reflective dispersion-compensation optical amplifier |
06/10/2004 | US20040109220 PMD compensator based on separation of principal state of poloarization control and differential group delay control, and method thereof |
06/10/2004 | US20040109217 Atomic clock based on an opto-electronic oscillator |
06/10/2004 | CA2506263A1 Transmitter in a digital return link for use in an hfc network |
06/09/2004 | EP1427210A1 Terminal, data distribution system comprising such a terminal and method of re-transmitting digital data |
06/09/2004 | EP1427158A1 Optical reception apparatus |
06/09/2004 | EP1427125A2 Optical pulse separation method and device |