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)
10/2011
10/25/2011US8045853 Mechanism for tracking wavelengths in a DWDM network without specialized hardware
10/25/2011US8045852 Channel balancing algorithm
10/25/2011US8045851 Method and apparatus for automatic restoration detection and automatic restoration of optical communication system
10/25/2011US8045259 Active optical fibers with wavelength-selective filtering mechanism, method of production and their use
10/25/2011US8045258 Method for regulating OSNR in a fiber optic communication line using Raman amplification
10/25/2011US8045174 Assessing a network
10/25/2011CA2601485C Distribution module for an optic fiber distribution hub
10/25/2011CA2480944C Movable mirror device and dispersion compensator
10/25/2011CA2437877C Adjustable dispersion compensator with few mode fibers and switchable mode converters
10/25/2011CA2432801C Increasing data throughput in optical fiber transmission systems
10/21/2011CA2740209A1 Compensation of distortion from sbs/iin suppression modulation
10/20/2011WO2011130641A1 Electrically-adaptive dspk and (d)mpsk receivers
10/20/2011WO2011130600A2 Connectors and cables with an optical transmitter
10/20/2011WO2011130472A2 Port mapping in fiber optic network devices
10/20/2011WO2011130193A1 Electronic nonlinearity compensation for optical transmission systems
10/20/2011WO2011130036A1 System and method for scheduling timeslots for transmission by optical nodes in an optical network
10/20/2011WO2011129318A1 Communication system, station-side optical circuit terminating apparatus, user-side optical circuit terminating apparatus, control apparatus, and communication method
10/20/2011WO2011129101A1 Optical amplifier
10/20/2011WO2011127959A1 Method and device for transmission and reception of a polarization multiplexed optical signal
10/20/2011WO2011127781A1 Method and device for improving performance of polarization controller
10/20/2011WO2011127731A1 Registration activation method and system for optical network unit
10/20/2011WO2011127722A1 Crossing capacity processing method for optical transport network (otn) equipment and otn equipment
10/20/2011US20110255880 Ir receiving unit
10/20/2011US20110255879 Electronic Nonlinearity Compensation For Optical Transmission Systems
10/20/2011US20110255878 Bandpass component decimation and transmission of data in cable television digital return path
10/20/2011US20110255877 Digital coherent receiver and receiving method
10/20/2011US20110255876 Optical transmitter
10/20/2011US20110255875 Dual rate qpsk/tcm-qpsk optical modulation
10/20/2011US20110255874 Optical signal processing apparatus, optical receiving apparatus, and optical relay apparatus
10/20/2011US20110255873 Optical Transceiver Modules and Systems and Optical Transceiving Methods
10/20/2011US20110255872 Infrared control system
10/20/2011US20110255871 Mode-Locked Optical Amplifier as a Source for a wdm-WDM Hierarchy Architecture
10/20/2011US20110255866 System and method for scheduling timeslots for transmission by optical nodes in an optical network
10/20/2011US20110255861 Method and Apparatus for Determining a Signal Transfer Characteristic Along a Light Path in an Optical Network
10/20/2011US20110255860 Fault localization method and a fault localization apparatus in a passive optical network and a passive optical network having the same
10/20/2011US20110255859 Method and system for providing fault recovery using composite transport groups
10/20/2011US20110255621 Synchronized multipoint-to-point communication using orthogonal frequency division
10/20/2011US20110255152 Optical amplifier
10/20/2011US20110255151 Optical Network Amplifier Node and Method of Channel Power Depletion Compensation
10/20/2011DE102011001935A1 Radio receiver i.e. ultra wide band radio receiver, for use in ultra wide band radio sensor network for e.g. detecting sensor data, has processing unit equipped such that spatial integrated correlation of reception signals takes place
10/20/2011CA2794601A1 Port mapping in fiber optic network devices
10/19/2011EP2378680A1 Optical network unit (ONU) having controllable optical output and method of controlling the optical output of an ONU
10/19/2011EP2378679A1 Optical electric field transmitter and optical transmission system
10/19/2011EP2169852B1 Device for realizing elongation of data transmission in a passive optical network
10/19/2011EP2011257B1 Protection device for removal of signal interference in a passive optical network
10/19/2011CN202014253U Optical module for asymmetrical 10 Gigabit EPON (Ethernet passive optical network) unit
10/19/2011CN202014252U Single-fiber bidirectional analog signal optical communication device
10/19/2011CN202014251U Self-luminous debugging system of optical network unit based on bosa on board (BOB)
10/19/2011CN202014250U Optical module for symmetrical 10 gigabit EPON (Ethernet passive optical network) unit
10/19/2011CN1918830B Method for regulating the pump power of an optical amplifier
10/19/2011CN102224692A Visible ray communication system and method for transmitting signal
10/19/2011CN102224691A Visible ray communication system, transmission apparatus, and signal transmission method
10/19/2011CN102224690A Frequency offset polarization multiplexing modulation format and system incorporating the same
10/19/2011CN102223585A Intelligent reconfigurable optical distribution frame and intelligent reconfigurable optical fiber communication system
10/19/2011CN102223352A GPON (Gigabit Passive Optical Network) system and PPPoE (Point-to-point Protocol over Ethernet) configuration method for realizing same
10/19/2011CN102223340A Terabit transmission rate coherent light orthogonal frequency division multiplexing (OFDM) system based on optical comb
10/19/2011CN102223333A Bias point control method and device of DQPSK (Differential Quaternary Reference Phase Shift Keying) demodulator
10/19/2011CN102223310A Parallel signaling based multi-cast recovery mechanism in distributed intelligent optical network
10/19/2011CN102223282A Method for establishing virtual multi-Ethernet channel through optical fibre
10/19/2011CN102223185A Method and system for determining topology structure of passive optical network
10/19/2011CN102223184A Dispersion compensation method and device
10/19/2011CN102223183A Non-relay optical fiber transmission system and method
10/19/2011CN102223182A Control method and device for drive current
10/19/2011CN102223181A Control method of electrical variable optical attenuator and optical attenuation system
10/19/2011CN102223180A Optical module with low power consumption and realizing method thereof
10/19/2011CN102223179A Method and device for configuring relay single plate
10/19/2011CN102223178A Adjustable microwave millimeter wave generator for photonic crystal fiber
10/19/2011CN102223177A Ultra-long distance optical communication system and ultra-long distance optical communication method based on single-photon detection
10/19/2011CN102223176A Method and device for monitoring optical layer of passive optical network based on two-dimensional optical orthogonal code
10/19/2011CN102223175A Method for optimizing receiving parts of high-speed optical module
10/19/2011CN102223174A Optical module integrated with function of optical time domain reflectometer
10/19/2011CN102223156A Hot backup matrix of NGB (Next Generation Broadcasting) optical network
10/19/2011CN102222057A Infrared data association system and method for operating infrared data association (IrDA) module in same
10/19/2011CN102221751A Method and device for improving performances of polarization controller
10/19/2011CN102221727A Apodizing device and method for realizing single exposure
10/19/2011CN102221375A Optical-fiber-circuit-based communication light source sensing system and method
10/19/2011CN102221332A Fiber grating multi-point sensing device for unconsolidated strata as well as monitoring system and method
10/19/2011CN101442385B Test device of digital communication error rate
10/19/2011CN101442364B Light coherent receiver, frequency difference estimation apparatus and method for light coherent receiver
10/19/2011CN101266379B High power optical apparatus employing large-mode-area, multimode, gain-producing optical fibers
10/18/2011USRE42848 Information transmission system using light as communication medium, information transmission method, image pickup device, and computer programmed product
10/18/2011US8041233 Adaptive equalization in coherent fiber optic communication
10/18/2011US8041232 Optical transmitter and control method thereof
10/18/2011US8041231 Supervisory controlling method and supervisory controlling system of optical repeater
10/18/2011US8041230 System and method for optoelectrical communication
10/18/2011US8041229 System and method for optoelectrical communication
10/18/2011US8041228 Fiber optical transmission system, transmitter and receiver for DQPSK modulated signals and method for stabilizing the same
10/18/2011US8041227 Apparatus and method for near-field communication
10/18/2011US8041226 Optical transceiver with equalizing function and a method to setup the optical transceiver
10/18/2011US8041225 Contactless infrared data transmission for wind turbines
10/18/2011US8041224 Optical frequency division multiplexed communications over the horizon
10/18/2011US8041223 Method and apparatus for establishing system delay time and frame length in time division duplexing system
10/18/2011US8041222 Radio over fiber link apparatus of time division duplex scheme
10/18/2011US8041221 Method and apparatus for coupling optical signal with packaged circuits via optical cables and lightguide couplers
10/18/2011US8041220 Remote control device and remote control system
10/18/2011US8041216 System and method for channel-adaptive error-resilient burst mode transmission
10/18/2011US8041214 Photonic network packet routing method and packet router for photonic network
10/18/2011US8041212 Method and arrangements for determining the optical signal-to-noise ratio for an optical transmission system
10/18/2011US8041211 Optical signal quality monitoring apparatus and method
10/18/2011US8041169 Optical signal processing device