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)
07/2003
07/09/2003CN1429350A Chromatic-dispersion compensator
07/09/2003CN1428961A Method of optical wavelength converter capable of fleribly setting speed rate and its equipment
07/09/2003CN1428960A On-line dispersion compensation device of wavelength division high-speed optical transmission system
07/09/2003CN1428959A Double-way wave division multiplex optical network system
07/09/2003CN1428945A Equipment for restoring E3/T3 branch signal from synchronous digital transmission system
07/09/2003CN1428642A Optical attenuator module with automatic regulation function
07/09/2003CN1428620A Optical switch
07/09/2003CN1114286C High-speed data acquisition and real-time accumulation circuit for light time domain reflectometer
07/09/2003CN1114180C Point-type radio controller using infrared rays
07/09/2003CN1114113C Optical fiber amplifier for achieving high gain of small signal
07/08/2003US6591047 Method and apparatus for compensation of nonlinearity in fiber optic links
07/08/2003US6591043 Diffractive monitor and system
07/08/2003US6591024 System comprising in-line wavelength sensitive polarimeter
07/08/2003US6591023 Optical transmitter having a modulation-capable wavelength-stable laser source
07/08/2003US6590903 Method for the transmission of an asynchronous data stream via a synchronous data bus, and circuit arrangement for carrying out the method
07/08/2003US6590701 Optical signal processing method and apparatus
07/08/2003US6590700 Adaptive optical amplifier control
07/08/2003US6590693 Light modulation
07/08/2003US6590687 Low power optically coupled serial data link
07/08/2003US6590686 Optical transmitter
07/08/2003US6590685 Satellite communication optical beam acquisition techniques using a plurality of scan patterns
07/08/2003US6590684 Optical system
07/08/2003US6590683 Bandwidth efficient phase shift keyed modulation over nonlinear distortion limited optical fiber links
07/08/2003US6590682 Infrared signal communication system and method including transmission means having automatic gain control
07/08/2003US6590681 Optical WDM network having an efficient use of wavelengths and a node therefor
07/08/2003US6590505 Remote control system
07/08/2003US6590504 Method and apparatus for the remote controlled actuation of a control device
07/08/2003US6589805 Current confinement structure for vertical cavity surface emitting laser
07/08/2003US6588950 Optical transmission system and transmitters and receivers
07/08/2003CA2304280C Frequency agile transponder
07/03/2003WO2003055111A1 Optical transmission network
07/03/2003WO2003055110A1 Double optical pumping optical amplifier comprising a device for attenuating pump residues
07/03/2003WO2003055109A1 Optical phase modulation
07/03/2003WO2003055108A1 Free-propagation optical transmission system
07/03/2003WO2003055107A2 Optical channel monitor device and method
07/03/2003WO2003055106A2 Electrooptical device for channel equalization in a multichannel optical link
07/03/2003WO2003003624A3 Apparatus and method for optical to wireless conversion
07/03/2003WO2002004989A8 A system and method for increasing channel capacity of fiber-optic communication networks
07/03/2003US20030126614 Hybrid fiber optic and coaxial cable network node that contains a cable modem termination system
07/03/2003US20030126285 Transmission device, and data processing method in same
07/03/2003US20030123935 Subsurface fibre optic cable network installation
07/03/2003US20030123884 Monitoring optical dispersion based on vestigial side band optical filtering
07/03/2003US20030123882 Method and apparatus for conditioning a transmission path for free-space optical wireless data communications
07/03/2003US20030123881 WDM optical network with passive pass-through at each node
07/03/2003US20030123880 Programmable OADM with chromatic dispersion, dispersion slope and amplitude ripple compensation, and method
07/03/2003US20030123879 Backbone interface, a terminal interface for communications in a space vehicle, and a communications network comprising such interfaces
07/03/2003US20030123877 System and method for increasing bandwidth efficiency and throughput of a data transmission network
07/03/2003US20030123876 Cross -connect protection
07/03/2003US20030123826 Optical transmission line and optical transmission system using optical transmission line
07/03/2003US20030123818 Optical transceiver, connector, substrate unit, optical transmitter, optical receiver, and semiconductor device
07/03/2003US20030123813 Network for distributing signals to a plurality of users
07/03/2003US20030123800 Variable dispersion compensator and substrate for the same
07/03/2003US20030123789 Control method and device for optical filter, and optical node device
07/03/2003US20030123785 Optical path cross connect apparatus and switching method thereof
07/03/2003US20030123783 Connecting method of optical function devices, and optical apparatus
07/03/2003US20030123776 System for polarization mode dispersion compensation
07/03/2003US20030123775 Control method and device for optical filter
07/03/2003US20030123771 Optical signal modulation method and optical signal transmission system for high speed transmission system
07/03/2003US20030123648 Fiber to the curb and fiber to the neighborhood power architecture
07/03/2003US20030123168 Optical receiving device
07/03/2003US20030123142 Optical amplifier for amplifying a wavelength division multiplexed (WDM) light including light in different wavelength bands
07/03/2003US20030123141 L band optical amplifier
07/03/2003US20030123139 Distributed optical amplifier, amplifying method, and optical communication system
07/03/2003US20030123137 Optical in-line amplifier and wavelength-division multiplexer
07/03/2003US20030123136 Optical amplifier and method thereof
07/03/2003US20030123135 Method for gain equalization, and device and system for use in carrying out the method
07/03/2003US20030123134 Controlling apparatus and controlling method for wavelength division multiplexing optical amplifier
07/03/2003US20030123132 Multi-wavelength ring laser source
07/03/2003US20030123122 Multilevel light-intensity modulating circuit
07/03/2003US20030123119 Optical performance monitoring device
07/03/2003US20030123066 Apparatus for detecting wavelength drift and method therefor
07/03/2003US20030123065 Apparatus for detecting cross-talk and method therefor
07/03/2003US20030122148 Spin filter
07/03/2003US20030122057 Optical signal receiving apparatus and method using the same
07/02/2003EP1324630A2 Optical path cross connect apparatus and switching method thereof
07/02/2003EP1324531A1 Phase modulator and phase modulating method
07/02/2003EP1324526A2 Control method and device for optical filter
07/02/2003EP1324523A1 Wavelength-division multiplexing optical communication system
07/02/2003EP1324518A2 Optical switching equipment, optical transport network, and methods of using them
07/02/2003EP1324517A2 Arrangement and Method for measuring and compensating the Polarisation Mode Dispersion of optical signals
07/02/2003EP1324516A2 Apparatus for detecting cross-talk and method therefor
07/02/2003EP1324105A2 Control method and device for optical filter
07/02/2003EP1324101A1 Optical signal transmitter and optical signal transmitting method
07/02/2003EP1323250A2 Method and system for transmitting signals with spectrally enriched optical pulses
07/02/2003EP1323249A1 Optical protection methods, systems, and apparatuses
07/02/2003EP1323217A2 Wide bandwidth fiber raman amplifier
07/02/2003EP0824803B1 Branching unit for an optical fibre transmission system
07/02/2003CN2559171Y Relay-less long distance optical transmission device
07/02/2003CN2559170Y All-optical Ethernet integrated service device
07/02/2003CN1427583A Multilayer return circuit testing device of community network system and its method
07/02/2003CN1427572A Optical signal converting apparatus, optical communication network and usage thereof
07/02/2003CN1427571A Light up and down path bifurcation multiplex apparatus
07/02/2003CN1427570A Single fiber bidirectional transmission multi wave length optical network system capable of realizing partial wave length reusing
07/02/2003CN1427558A Optical transmission system, optical repeater and optical transmission method
07/02/2003CN1427557A Multiterminal optical access/out multiplexer and partial wave multiplexer
07/02/2003CN1427275A Optical switch
07/02/2003CN1113579C Optical switch and transmitter and receiver for multiplex transmission system including such switch
07/02/2003CN1113490C Optical module for light-time domain reflectometer with wide dynamic range
07/01/2003US6587974 Method for fault detection and fast protection switching in transmission systems
07/01/2003US6587699 Narrow beamwidth communication link with alignment camera
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