Patents
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)
08/2001
08/21/2001CA2336575A1 Method for data transmission
08/21/2001CA2164071C Optical communication system
08/16/2001WO2001059982A1 Optical receiver
08/16/2001WO2001059961A1 High altitude optical telecommunications system and method
08/16/2001WO2001059960A1 Optical compensation for dispersion-induced power fading in optical transmission of double-sideband signals
08/16/2001WO2001059896A1 Control circuit for a radiation source and method for controlling a radiation source
08/16/2001WO2001059496A2 Dispersion compensating module and mode converter, coupler and dispersion compensating optical waveguide therein
08/16/2001WO2001059413A2 System and method for measuring optical wavelengths
08/16/2001WO2001009991A3 Gain flattening with nonlinear sagnac amplifiers
08/16/2001WO2000073847A3 Method and system for generating return-to-zero signals
08/16/2001US20010013967 Multi-channel optical communication system that controls optical reflection for each channel and optical transmitting and receiving apparatuses therefor
08/16/2001US20010013966 Dispersion compensation apparatus and a dispersion compensation system
08/16/2001US20010013964 Remodulating channel selectors for WDM optical communication systems
08/16/2001US20010013962 Method and apparatus for wavelength-channel tracking and alignment within an optical communications system
08/16/2001US20010013794 Buffer circuit
08/16/2001US20010013573 Photosensor-amplifier device
08/16/2001EP1123596A1 Method for channel adjustment of transmission signal power in a wavelength division multiplexing transmission system
08/16/2001EP1123595A2 Wdm transmitter and receiver
08/16/2001EP1123590A1 Method and apparatus for monitoring an optical wdm network
08/16/2001EP1015810B1 A method for optically marking an elongated indication path and devices using same
08/16/2001EP0701710B1 Frequency-selective optical switch using polarization rotation
08/16/2001DE10102176A1 Optical wideband amplifier, has two assemblies consisting of optical coupler, pump light source and optical fiber doped with erbium stimulated by pump light, output path optical switch
08/16/2001DE10006239A1 Verfahren zur Charakterisierung von Polarisationstransformatoren A method of characterizing polarization transformers
08/15/2001CN1308797A Method for compensating for polarisation mode dispersion and polarisation mode dispersion compensator
08/15/2001CN1308434A Passive optical network system in asynchronous transfer mode
08/15/2001CN1308246A Transient effect inhibitor for optical fiber amplifier in WDM system
08/14/2001US6275990 Transport of payload information and control messages on multiple orthogonal carriers spread throughout substantially all of a frequency bandwith
08/14/2001US6275632 High power fiber gain media system achieved through power scaling via multiplexing
08/14/2001US6275629 Optical grating devices with adjustable chirp
08/14/2001US6275541 Digital receiver circuit
08/14/2001US6275455 System and method for generating position error signals within a computer memory device
08/14/2001US6275331 Optical amplifiers
08/14/2001US6275330 Apparatus and method for controlling a wavelength-multiplex optical amplifier
08/14/2001US6275328 Amplifier control
08/14/2001US6275317 Hybrid integration of a wavelength selectable laser source and optical amplifier/modulator
08/14/2001US6275316 Monitoring and/or controlling device and process
08/14/2001US6275315 Apparatus for compensating for dispersion of optical fiber in an optical line
08/14/2001US6275314 Optical wavelength multiplex transmission method and optical dispersion compensation method
08/14/2001US6275313 Raman gain tilt equalization in optical fiber communication systems
08/14/2001US6275045 Microwave transmitter-receiver
08/14/2001CA2236115C Thermal down-mixing in diode laser transmitters to suppress stimulated brillouin scattering
08/14/2001CA2229359C Sensor array tracking and detection system
08/14/2001CA2225362C Repeater apparatus having isolation circuit
08/14/2001CA2204172C Large capacity atm switch
08/14/2001CA2197943C Transmission control method in a network system for interactively transmitting a signal between node devices and network system using the same
08/14/2001CA2106133C Optical switching equipment for the through-connection of optical message cells
08/14/2001CA2096799C Laser with longitudinal mode selection
08/09/2001WO2001058204A2 Transparent optical switch
08/09/2001WO2001058203A2 Linear optical transmission system with failure protection
08/09/2001WO2001058202A1 Optical cross-connect
08/09/2001WO2001058057A1 Wavelength dispersion compensation module and optical transmission system including the same
08/09/2001WO2001058056A1 Point to point optical link
08/09/2001WO2001058055A2 Optical free space signalling system
08/09/2001WO2001058039A2 System and method for modularizing the functionality of an electronic device
08/09/2001WO2001057969A1 Automatic power control and laser slope efficiency normalizing circuit
08/09/2001WO2001006663A3 System and method for optical wireless communication
08/09/2001WO2000072491A3 Method and system for increasing a number of information channels carried by optical waveguides
08/09/2001US20010013077 Portable computer for infrared data communication
08/09/2001US20010012767 Compact optical transceiver integrated module using silicon optical bench
08/09/2001US20010012424 Wavelength multiplexing/demultiplexing unit, wavelength multiplexing/demultiplexing apparatus and wavelength multiplexing/demultiplexing method
08/09/2001US20010012148 Device for suppressing transient effect of optical fiber amplifier in WDM system
08/09/2001US20010012147 Optical fibre amplifier having a gain flattening filter
08/09/2001US20010012146 Optical amplifying device
08/09/2001US20010012144 Multi-wavelength light source and discrete-wavelength-variable light source
08/09/2001US20010012143 Optical system for transmitting data in soliton format
08/09/2001US20010012142 Laser satellite communication system
08/09/2001US20010012141 Optical path managing device in an optical transmission network and a method thereof
08/09/2001US20010011940 Method and apparatus for identifying codes for remotely controlling electronic devices via a wireless communication medium
08/09/2001DE19953332C1 Verfahren und Anordnung zur Optimierung eines mit einem binären Datensignal modulierten optischen Übertragungssignals Method and apparatus for optimizing a modulated with a binary data signal optical transmission signal
08/09/2001DE10005298A1 Potential free data transmission device using optical transmitter and receiver - has transmitter and receiver formed from multilayer organic layer and constituting single integrated component
08/09/2001DE10002521A1 Elektrooptisches Datenübertragungsmodul Electro-optical data transmission module
08/09/2001CA2398716A1 Wavelength dispersion compensation module and optical transmission system including the same
08/08/2001EP1122970A2 Digital content downloading system using networks
08/08/2001EP1122906A2 Method and network element for traffic protection in WDM fiber optic transport networks
08/08/2001EP1122903A2 Method for identifying the current route of paths in telecommunications MS-SPRING
08/08/2001EP1122899A1 Optical dipersion compensation
08/08/2001EP1122898A1 Optical repeater monitoring system and a method thereof
08/08/2001EP1122842A2 Method for optical direct amplification, and optical amplification repeater and optical transmission system using the same
08/08/2001EP1121777A1 Optical unidirectional ring network
08/08/2001EP1121774A1 Information system
08/08/2001EP1121616A2 Flexible, modular, compact fiber optic switch
08/08/2001EP1121605A1 Method and device for determining the position of communication satellites
08/08/2001EP0760184A4 In-line predistorter for linearization of electronic and optical signals
08/08/2001CN2442458Y Multiple beam combined wave channel splitting filter of double cladding optic fiber
08/08/2001CN1307768A Multiwavelength mode-locked dense wavelength division multiplexed optical communication systems
08/08/2001CN1307767A Method and wavelength selective switching for switching optical wavelegnths
08/08/2001CN1307416A Device for setting standard wave length in photo-signal channel monitoring module
08/08/2001CN1307411A Small-shape factor optical receiving and transmitting integrated module using silicon light base
08/08/2001CN1307410A Single-fiber two-way integral optical module for burst transmission
08/08/2001CN1307409A Single-fiber two-way integral optical module for burst reception
08/08/2001CN1069470C Multiplexing/demultiplexing unit
08/08/2001CA2331902A1 Electro-optical connector module
08/07/2001US6272548 Dead reckoning routing of packet data within a network of nodes having generally regular topology
08/07/2001US6272346 Manhole type base station, mobile communication system having the base station and hand-off control method in the mobile communication system
08/07/2001US6272274 Optical transmitting and receiving system
08/07/2001US6272156 Apparatus for ultrashort pulse transportation and delivery
08/07/2001US6271962 System of controlling wavelength division multiplexed optical amplifier and method thereof
08/07/2001US6271960 Method and apparatus for wavelength conversion of signal light
08/07/2001US6271959 Method and apparatus for optical frequency demodulation of an optical signal using interferometry
08/07/2001US6271953 Method and system for optical free space communications using non-mechanical beam steering