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)
10/2009
10/27/2009US7609979 Coherent optical detection and signal processing method and system
10/27/2009US7609978 Interferometric polarization control
10/27/2009US7609977 Optical transmission using semiconductor optical amplifier (SOA)
10/27/2009US7609976 Method and system for ultra-high bit rate fiber-optic communications
10/27/2009US7609975 Optical transmission apparatus
10/27/2009US7609974 Data transmission method and a system thereof
10/27/2009US7609973 Electro-optical communication system
10/27/2009US7609972 Acquisition, pointing, and tracking architecture for laser communication
10/27/2009US7609971 Electro optical scanning multi-function antenna
10/27/2009US7609970 Add/drop node for an optical communications network
10/27/2009US7609966 Method and system for time-sharing transmission frequencies in an optical network
10/27/2009US7609964 Power level management in optical networks
10/27/2009US7609382 System and method of detecting entangled photons
10/27/2009CA2514993C Method and apparatus for testing network data signals in a wavelength division multiplexed optical network
10/27/2009CA2418923C A node, an optical/electrical path integrated network using the node, and a program which controls the node
10/22/2009WO2009128274A1 Intercom system, portable talking device, and led illuminating device
10/22/2009WO2009128113A1 Optical signal regenerating apparatus
10/22/2009WO2009128059A1 Technique for detection of optical data signals
10/22/2009WO2009127843A1 Terahertz signal generator
10/22/2009WO2009127695A1 Method for cable testing with insertion of directional coupling device
10/22/2009WO2009127177A2 Method and device for processing terahertz waves
10/22/2009US20090263144 Linearized Phase Modulated Analog Optical Links
10/22/2009US20090263143 Optical communication integration
10/22/2009US20090263142 Tunable optical filter
10/22/2009US20090263141 Dual use of test point power monitor
10/22/2009US20090263140 Optical communication module and flexible printed circuit board
10/22/2009US20090263139 Method and apparatus for increasing voice service for an optical network terminal (ONT)
10/22/2009US20090263138 Free-space optical communication system
10/22/2009US20090263137 Photonic rf down-converter based on optomechanical oscillation
10/22/2009US20090263132 Method of introducing an outstation into an optical network and outstation therefor
10/22/2009US20090263127 Methods and devices for reducing power consumption in a passive optical network while maintaining service continuity
10/22/2009US20090263126 Monitoring the physical layer of optoelectronic modules
10/22/2009US20090263125 Light mark, method and device for light mark modulation and demodulation
10/22/2009US20090263124 Methods of protection sharing for multi-protected optical demands in large-scale wdm mesh networks
10/22/2009US20090263123 Fiber network monitoring
10/22/2009US20090263122 Method and apparatus for network diagnostics in a passive optical network
10/22/2009US20090262415 System and method for uniform illumination of a target area
10/22/2009US20090261955 Intelligent bail
10/22/2009DE102008019010A1 Verfahren und Vorrichtung zur Verarbeitung von Terahertz-Wellen Method and apparatus for processing of terahertz waves
10/21/2009EP2110972A1 Optical transmitting apparatus, optical receiving apparatus, and optical communication system comprising them
10/21/2009EP2110971A1 Method for atmospheric optical free space transfer of digital signals and recipients for the method
10/21/2009EP2110970A1 Method for monitoring an optical data transmission line, optical data transmitter, optical data receiver, and optical data station
10/21/2009EP2018689B1 Variable gain optical amplifiers
10/21/2009EP1780911B1 Method and device for signal transporting
10/21/2009CN201332400Y Demultiplexer system based on D toggle circuit
10/21/2009CN201332398Y USB adapter based on optical fiber
10/21/2009CN201332397Y Network management fiber transceiver system
10/21/2009CN101563893A Optical communication system, its optical communication method, and communication device
10/21/2009CN101563868A Optical signal processing method and device, associated central equipment and access network
10/21/2009CN101563867A Apparatus and method for OLT and ONU for wavelength agnostic wavelength-division multiplexed passive optical networks
10/21/2009CN101563865A Optical transmission using semiconductor optical amplifier (SOA)
10/21/2009CN101563843A Optical receiver
10/21/2009CN101562909A Integrated transmission repeater and working method thereof
10/21/2009CN101562760A Methods and devices for reducing power consumption in a passive optical network while maintaining service continuity
10/21/2009CN101562493A Wavelength-division ring video optical transmitter and receiver
10/21/2009CN101562492A Optical code division multiplex communication module, optical code division multiplex communication system, and communication method
10/21/2009CN101562483A Processes and systems involving optical phase conjugators
10/21/2009CN101562482A Fiber wireless communication system and method for generating downlink multi-service millimeter wave
10/21/2009CN101562481A Millimeter wave subcarrier light pulse signal generator based on cascade all-pass filter
10/21/2009CN101562480A Optical access network, and method, system and apparatus for backuping optical line terminal
10/21/2009CN101562446A Novel infrared remote control power switch
10/21/2009CN101561968A 通信系统 Communication System
10/21/2009CN101561560A Polarizing beam-splitting birefringence space light bridge
10/21/2009CN101561554A Phase-controllable birefringence space light bridge
10/21/2009CN100553182C Apparatus and method for tracking optical wavelength in WDM passive optical network
10/21/2009CN100553178C Multi-mode-single mode optical network full optical fiber interconnecting method and interconnector for realizing the same method
10/21/2009CN100552483C Two-dimensional encoder-decoder manufacture method based on sampling grating
10/21/2009CN100552482C Integral dispersion compensation and adjustable attenuator based on triangular optical fiber grating
10/20/2009US7606504 Optical receiver and optical receiving method corresponding to differential M-phase shift keying system
10/20/2009US7606503 Pulse signal demodulation device
10/20/2009US7606502 Second order predistortion circuit
10/20/2009US7606501 System and method for generating optical return-to-zero signals with alternating bi-phase shift and frequency chirp
10/20/2009US7606500 Scalable transceiver based repeater
10/20/2009US7606499 Bidirectional transceiver assembly for POF application
10/20/2009US7606498 Carrier recovery in a coherent optical receiver
10/20/2009US7606496 Communications and position location system and method
10/20/2009US7606492 System and method for communicating optical signals upstream and downstream between a data service provider and subscribers
10/20/2009US7606491 ONU management method and optical line termination
10/20/2009US7606488 Wavelength-division-multiplexing optical transmission system and control method thereof
10/20/2009US7606487 Distortion measurement in optical communication systems
10/20/2009US7606486 Protocol specific transceiver firmware
10/20/2009US7606451 Optical communication system, optical reader, and method of reading information
10/20/2009US7605974 Method and apparatus for PPM demodulation using a semiconductor optical amplifier
10/20/2009US7605842 Vehicular optical communications system
10/20/2009CA2339345C Optical communications system and method of protecting an optical route
10/20/2009CA2279712C An optical filter for use in or with an optical amplifier
10/15/2009WO2009126506A2 Erbium and erbium/ytterbium cladding pumped hybrid optical amplifier
10/15/2009WO2009125442A1 Method and apparatus for reducing the amplitude modulation of optical signals in external cavity lasers
10/15/2009WO2009124961A1 Method and device for phase recovery and communication system comprising such device
10/15/2009WO2009124861A1 Modulation scheme with increased number of states of polarization
10/15/2009WO2009124588A1 Improvements in or relating to optical networks
10/15/2009WO2009124484A1 A method, system and device for transmitting data in optical network
10/15/2009WO2009124476A1 Method and apparatus for extending the number of optical network units in a passive optical network
10/15/2009WO2009124471A1 Methods and systems for optical communication
10/15/2009WO2009124376A1 Soft thermal failure in a high capacity transmission system
10/15/2009WO2009021015A3 Highly collimated and temporally variable x-ray beams
10/15/2009US20090257758 Optical receiving apparatus
10/15/2009US20090257757 Signal identification in optical communications networks
10/15/2009US20090257756 Optical receiver and optical phase control method thereof
10/15/2009US20090257755 Modulation scheme with increased number of states of polarization