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)
11/2004
11/02/2004US6813079 Fabricating optical waveguide gratings
11/02/2004US6813066 Gain control in nonlinear fiber amplifier stages
11/02/2004US6813065 Raman amplifier and optical communication system
11/02/2004US6812546 Current mirror circuit and optical signal circuit using same
11/02/2004US6812452 Apparatus and method for measuring the wavelength of light present in a light beam
11/02/2004CA2280020C Apparatus for measuring characteristics of an optical fibre
10/2004
10/28/2004WO2004093354A1 Reconfigurable optoelectronic circuit
10/28/2004WO2004093353A1 Optical splitter
10/28/2004WO2004093352A1 Optical transmission device
10/28/2004WO2004093351A2 Optical network interface systems and devices
10/28/2004WO2004092347A2 Etalon based compact dispersion module
10/28/2004WO2004091441A2 Apparatus and methods for delivery of multiple distributed stents
10/28/2004WO2004052045A3 Fast-switching scalable optical interconnection design with fast contention resolution
10/28/2004WO2004038948A3 Second order predistortion circuit
10/28/2004WO2003087891A3 Optical communication systems including optical amplifiers and amplification methods
10/28/2004US20040214603 Control station apparatus base station apparatus and optical transmission method
10/28/2004US20040214522 Ultra-wideband communication through a wire medium
10/28/2004US20040213587 Apparatus for optical communication using a large-area primary reflector
10/28/2004US20040213586 Method and apparatus for data recovery in an optical transmission system
10/28/2004US20040213585 Clock recovery for strongly distorted eyes
10/28/2004US20040213584 Optical signal processing apparatus
10/28/2004US20040213583 Method and apparatus for monitoring the power level of two or more optical transmitters
10/28/2004US20040213582 Transmitter and receiver photonic integrated circuit (TxPIC and RxPIC) chips utilizing compact wavelength selective combiners/decombiners
10/28/2004US20040213581 Optical transmission system
10/28/2004US20040213580 Transmitter and a signal generator in optical transmission systems
10/28/2004US20040213579 Optical communication system using correlation receiver
10/28/2004US20040213578 Chromatic dispersion compensation controlling system
10/28/2004US20040213577 Optical transmission line and optical transmission system
10/28/2004US20040213576 Optical transceiver for data transfer and control applications
10/28/2004US20040213575 Optical add drop multiplexer system
10/28/2004US20040213574 Wavelength division multiplexing - passive optical network system
10/28/2004US20040213573 Amplifier composite triple beat (CTB) reduction by phase filtering
10/28/2004US20040213572 Optical ring network for burst data communication
10/28/2004US20040213571 Time division multiplex and wavelength division multiplex optical switching node
10/28/2004US20040213567 Automatic power restoring method and optical communication system
10/28/2004US20040213566 Wavelength-division multiplex communication system and apparatus
10/28/2004US20040213565 Method and apparatus for optical signal and noise analysis using pulse amplitude histogram
10/28/2004US20040213564 Optical network
10/28/2004US20040213532 Hybrid fiber-coaxial networks and broadband communications systems employing same
10/28/2004US20040213516 Optical transceiver systems and methods
10/28/2004US20040213515 Laser and fiber coupling control
10/28/2004US20040213511 Erbium doped waveguide amplifier (EDWA) with pump reflector
10/28/2004US20040213510 Optical fiber transmission system using RZ pulses
10/28/2004US20040213504 Integrated circuit
10/28/2004US20040213500 Method and apparatus utilizing tunable differential group delay
10/28/2004US20040213338 Digital performance monitoring for an optical communications system
10/28/2004US20040213294 System and methods for mass broadband communications
10/28/2004US20040213286 Fiber to the home broadband home unit
10/28/2004US20040213256 Method and system for providing end-to-end protection in point-to-multipoint access networks
10/28/2004US20040212875 Integrated optical dual amplifier
10/28/2004US20040212872 Optical signal processing system and method
10/28/2004US20040212871 Method and system for forward pumping raman amplification in an optical network
10/28/2004US20040211886 Low noise light receiver
10/28/2004CA2521671A1 Apparatus and methods for delivery of multiple distributed stents
10/27/2004EP1471689A1 Optical wireless communication system
10/27/2004EP1471671A2 Integrated memory controller circuit for fiber optics transceiver
10/27/2004EP1471670A2 Optical transmission system including an add/drop apparatus with a plurality of individually selectable filters
10/27/2004EP1471669A2 Optical transmission system
10/27/2004EP1471668A1 Disperse equalizer and disperse equalizing method
10/27/2004EP1471667A1 Clock recovery from distorted optical signals
10/27/2004EP1470648A1 Multiple channel wireless communication system
10/27/2004EP1470522A2 Laser optics integrated control system and method of operation
10/27/2004EP1470438A2 Optical fiber amplifier
10/27/2004CN2652047Y Multicircuit amplitude and frequency modulated acousto-optic modulation fibre-optical transmission apparatus
10/27/2004CN2651765Y Optical wave division multiplexer for using optical filter with general sizes
10/27/2004CN1541495A Digital cross-connect
10/27/2004CN1541461A Optical system and method in optical system
10/27/2004CN1540907A Structure of optical switching node based on sharing convertor of adjustable wavelength
10/27/2004CN1540906A Multiple wavelength ultra continuous light sources
10/27/2004CN1540905A Device for automatic protective switching optical interface
10/27/2004CN1540904A Wavelength selection switcher
10/27/2004CN1540889A Ring type optical fiber CAN bus network
10/27/2004CN1540888A Dual star optical fiber CAN bus network
10/27/2004CN1540887A Optical transmission system possessing function for monitoring optical fibers and cables
10/27/2004CN1540886A M Chi N Chi K optical switch array suitable to whole optical network and its method
10/27/2004CN1540429A L wave band bipass optical fiber amplifier with erbium being adulterated enhanced by optical fiber grating
10/27/2004CN1540389A Method and device for optical amplification and system comprising device
10/27/2004CN1540381A Optical receiver possessing filter its fabricating method and optical send receive module
10/27/2004CN1540378A Method and device for raising performance of signal transmission optical fiber system
10/27/2004CN1540376A Wave selector
10/27/2004CN1540374A Full optical fiber type N Chi N optical swtich and preparing method
10/27/2004CN1173495C Dispersion compensation apparatus including fixed and variable dispersion compensator
10/27/2004CN1173494C Method and system for establishing indoor laser radio local network based on other net
10/27/2004CN1173221C Wavelength selective device and switch and method thereby
10/27/2004CN1173211C Light circulator to be unconcerned with polarization
10/27/2004CN1173210C Scoustoelectric light modulator of optical fiber for body wave
10/27/2004CN1173201C Broadband optical-fibre wave plate with multiple polarization state conversion functions
10/27/2004CN1173199C Optical transmission line, negtive dispersion optical fiber used for optical transmission line, and optical transmission system comprising optical transmission line
10/26/2004US6810435 Programmable identification in a communications controller
10/26/2004US6810216 Fast infrared transceiver with reduced power consumption
10/26/2004US6810215 Optical repeater converting wavelength and bit rate between networks
10/26/2004US6810214 When multiple communication bands are communicated over a common optical link
10/26/2004US6810212 Technique for connecting an optical access network to a user network
10/26/2004US6810210 Communication path impairment detection for duplex optic communication link
10/26/2004US6810186 Optical transmission line
10/26/2004US6810180 Arrayed waveguide grating, arrayed waveguide grating module, arrayed waveguide grating module waveguide compensation method, optical communication system
10/26/2004US6810179 Variable dispersion compensator
10/26/2004US6810177 Array waveguide grating, optical transmitter and optical communication system with monitoring function
10/26/2004US6810174 Optical filter and optical filtering method
10/26/2004US6810173 Pump power monitor system and method for gain control of optical amplifier