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)
01/2011
01/25/2011US7877020 Coherent RF-photonic link linearized via a negative feedback phase-tracking loop
01/25/2011US7877019 Optical receiver including a system and method of controlling gain of an optical amplifier
01/25/2011US7877018 Method and apparatus for correcting color imbalance of visible light in wavelength division parallel visible light communications
01/25/2011US7877016 Photonic integrated circuit (PIC) transceivers for an optical line terminal (OLT) and an optical network unit (ONU) in passive optical networks (PONs)
01/25/2011US7877015 Optical to radio frequency detector
01/25/2011US7877014 Method and system for providing a return path for signals generated by legacy video service terminals in an optical network
01/25/2011US7877012 Selecting optical waves
01/25/2011US7877011 Optical switch and optical crossconnect apparatus
01/25/2011US7877010 Device for monitoring the quality of an optical signal by filtering its beat component
01/25/2011US7877009 Method and system for electrochemical impedance spectroscopy
01/25/2011US7877008 WDM layer-based optical chanel protecting device and method thereof
01/25/2011US7876989 Active optical cable with integrated power
01/25/2011US7876985 Optical rotating data transmission device of short overall length
01/25/2011US7876852 Modulator device for generating an optical transfer signal modulated by binary signal
01/25/2011US7876797 Apparatus and method for measurement of dynamic laser signals
01/25/2011US7876644 Polarizaton diversity for optical fiber applications
01/25/2011US7876498 Pulse-energy-stabilization approach and first-pulse-suppression method using fiber amplifier
01/25/2011US7876497 Multi-stage long-band optical amplifier with ASE re-use
01/25/2011US7876496 Free-space optical module for optical amplification
01/25/2011US7876495 Apparatus and method for compensating for and using mode-profile distortions caused by bending optical fibers
01/25/2011US7876491 Multilevel optical phase modulator
01/25/2011US7876071 Integrated battery voltage sensor with high voltage isolation, a battery voltage sensing system and methods therefor
01/25/2011CA2524819C Spectrally phase encoded optical code division multiple access system
01/25/2011CA2501071C Method and apparatus for compensating a photo-detector
01/20/2011WO2011008041A2 Wavelength division multiplexing optical module
01/20/2011WO2011007803A1 Wavelength dispersion amount calculation device, optical signal reception device, optical signal transmission device, and wavelength dispersion amount calculation method
01/20/2011WO2011007658A1 Capturing device, capturing method, and capturing program
01/20/2011WO2011007423A1 Optical line terminal device and pon system
01/20/2011WO2011007380A1 Apparatus for transferring data in wireless mode to a portable electronic device by means of light pulses emitted from an lcd monitor
01/20/2011WO2011006403A1 Method and system for data transmission and provider edge node
01/20/2011WO2011006339A1 Multicast processing method and apparatus
01/20/2011WO2011006327A1 System and transmission method of passive optical network in which time division multiplexing coexists with wavelength division multiplexing
01/20/2011WO2011006304A1 Method and apparatus for recovering optical channel transport unit k frame, and system for transmitting optical channel transport unit k frame
01/20/2011WO2010128829A3 Apparatus and method for generating visible signal according to amount of data transmission in visible light communication system
01/20/2011WO2010123285A3 Wdm pon system with distribution through a periodic arrayed waveguide grating
01/20/2011US20110013914 Method and apparatus for improving reception of optical signals
01/20/2011US20110013913 Image-rotation prisms and optical interconnects employing the same
01/20/2011US20110013912 Header assembly for communications module
01/20/2011US20110013911 High-speed optical transponder systems
01/20/2011US20110013909 Optical Code Division Multiplexing Access System
01/20/2011US20110013907 Multi-value optical transmitter
01/20/2011US20110013906 Quantum information system
01/20/2011US20110013905 Active optical cable apparatus and method for detecting optical fiber breakage
01/20/2011US20110013904 Passive optical network (pon) in-band optical time domain reflectometer (otdr)
01/20/2011US20110013903 Optical communication
01/20/2011US20110013268 Systems and methods of achieving high brightness infrared fiber parametric amplifiers adn light sources
01/19/2011EP2275863A2 Optical device and circuit using phase modulation and related methods
01/19/2011EP2274843A1 Protected light source for multiple wavelength division multiplexed passive optical networks (wdm-pons)
01/19/2011EP2274842A1 Ldpc-coded multilevel modulation scheme
01/19/2011EP2274841A1 Optical free space data transmission
01/19/2011EP2274840A1 Optical ofdm transmission with improved efficiency
01/19/2011EP1873950B1 Wavelength-division multiplex communication apparatus
01/19/2011EP1814247B1 Identification methods of domain-to-domain link based on automatically switched optical network
01/19/2011EP1407568B1 Wdm ring network for flexible connections
01/19/2011CN201717938U Portable communication device
01/19/2011CN201717870U Radio frequency intelligent optical module capable of driving plurality of remote optical modules
01/19/2011CN201717869U Optical network station
01/19/2011CN201717868U Improved CATV light workstation
01/19/2011CN201717867U Wavelength division multiplexing test system
01/19/2011CN201717866U Optical signal testing device
01/19/2011CN201716431U Spherical lens optical-fiber reflective optical system based on locating of locating slot
01/19/2011CN1841968B Optical transmission apparatus
01/19/2011CN101953103A Optical code division multiplexing access system
01/19/2011CN101953098A Time division multiple access over wavelength division multiplexed passive optical network
01/19/2011CN101953097A Apparatus and method for transmitting and receiving data using visible light communication
01/19/2011CN101951532A Transmission and acquirement method, device and system of OTN (Optical Transport Network) network business defect information
01/19/2011CN101951313A FPGA-based SFI4.1 device
01/19/2011CN101951311A Sudden clock recovery method for dynamic optimal regulation at receiver in passive optical network
01/19/2011CN101951303A Method and node equipment for implementing bidirectional linear protection switch of multiplex section
01/19/2011CN101951295A Millimeter wave (MMW) generator on basis of generating photocarrier SSB by phase shift method
01/19/2011CN101951294A Microwave/millimeter wave signal generating device with continuously tunable broadband
01/19/2011CN101951293A Ultrahigh frequency band optical power automatic compensation radio frequency intelligent light transmission module
01/19/2011CN101951292A Data transmission system between rotating body and fixed body
01/19/2011CN101951291A Optical fiber on-line automatic monitoring system
01/19/2011CN101951290A EPON (Ethernet Passive Optical Network) optical channel protection technology
01/19/2011CN101951289A Passive optical network testing instrument
01/19/2011CN101950253A Method for upgrading optical module firmware in optical network unit by utilizing WEB webpage interface
01/19/2011CN101425944B Method for service bearing in G bit passive optical network system
01/19/2011CN101360061B Method and apparatus implementing official telephone and customer transparent channel route
01/19/2011CN101346006B Radio frequency passive optical network with broadband wireless and optical transmission amalgamation access
01/19/2011CN101336005B Implementing method for ASON system to automatically configure nodal parameter
01/19/2011CN101312376B Method, apparatus and system for detecting serial connection order of components in optical network
01/19/2011CN101299636B Method for performance treatment using performance buffer
01/19/2011CN101202591B Method for realizing multicast virtual local area network registration in GPON system
01/19/2011CN101060549B 便携式电话机及电子设备 The portable telephone and electronic equipment
01/18/2011US7873286 Optical receiver systems and methods for polarization demultiplexing, PMD compensation, and DXPSK demodulation
01/18/2011US7873285 Anti clipping circuit for laser transmitters
01/18/2011US7873284 Quadrature amplitude modulation of optical carriers
01/18/2011US7873283 Method of monitoring optical signal to noise ratio and optical transmission system using the same
01/18/2011US7873282 System, method and apparatus for polarization mode dispension compensation and demultiplexing polarization multiplexed signals
01/18/2011US7873281 Reliable transceiver microcode update mechanism
01/18/2011US7873280 Method and apparatus for free-space optical interconnects between arbitrary locations in a field using lenses, steering elements and a curved reflecting surface
01/18/2011US7873279 Light transfer apparatus for an electronic device
01/18/2011US7873278 Underwater optical communications system and method
01/18/2011US7873277 Passive optical network system and wavelength assignment method
01/18/2011US7873275 Photonic network packet routing method and packet router for photonic network
01/18/2011US7873274 Methods and systems to stabilize an optical network against nodal gain changes
01/18/2011US7873272 Optical pulse characterization using phase modulation
01/18/2011US7872985 System for multi-frame alignment
01/18/2011US7872794 High-energy eye-safe pulsed fiber amplifiers and sources operating in erbium's L-band