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)
07/2004
07/06/2004US6760532 Optical device having dynamic channel equalization
07/06/2004US6760524 Optical signal processing device, optical demultiplexer, wavelength converting device, optical signal processing method, and wavelength converting method
07/06/2004US6760513 Method using photonic crystals for the dispersion compensation of optical signals of different wavelengths which are transmitted together
07/06/2004US6760509 SNR booster for WDM systems
07/06/2004US6760353 Jitter suppression techniques for laser driver circuits
07/06/2004US6760150 Optical transmitting apparatus and an optical transmitting system
07/06/2004US6760149 Compensation of polarization dependent loss
07/06/2004US6760148 Nonlinear polarization amplifiers in nonzero dispersion shifted fiber
07/06/2004US6760147 Control apparatus and control method of optical signal exchanger
07/06/2004US6760142 Delay interferometer optical pulse generator
07/06/2004US6760136 Method and apparatus for configuring quantum mechanical state, and communication method and apparatus using the same
07/06/2004US6760110 Low coherent reflectometer
07/06/2004US6759759 Rotary contactless connector and non-rotary contactless connector
07/06/2004CA2339756C Time-division multiplexed pump wavelengths resulting in ultra broad band, flat, backward pumped raman gain
07/06/2004CA2093259C Frequency dependent optical isolator
07/01/2004WO2004056153A1 Audio information support system
07/01/2004WO2004056020A1 Optical transmitter/receiver and method for selecting optical wavelength automatically
07/01/2004WO2004056019A1 An optical communication system for wireless radio signals
07/01/2004WO2004056018A1 Osnr monitoring method and apparatus using tunable optical bandpass filter and polarization nulling method
07/01/2004WO2004056017A1 Optical interrogation system and sensor system
07/01/2004WO2004056016A1 Drive circuit and drive method for optical modulator
07/01/2004WO2004042965A3 Optical fan-out and broadcast interconnect
07/01/2004WO2004036263A3 Combined wavefornt sensor and data detector for a free space optical communications system with adaptive optics
07/01/2004WO2003103205A3 Optical add/drop node and method
07/01/2004WO2002097477A3 High gain semiconductor optical amplifier with low noise
07/01/2004US20040128113 Synthesized high speed digital filters
07/01/2004US20040126121 FM modulator
07/01/2004US20040126120 Dynamic gain equalizer
07/01/2004US20040126119 Method and apparatus for providing a terminal independent interface between a terrestrial optical terminal and an undersea optical transmission path
07/01/2004US20040126118 Optical module and a method of fabricating the same
07/01/2004US20040126116 Free-space optical communications with partially coherent beams
07/01/2004US20040126114 Dispersion compensation method and apparatus
07/01/2004US20040126113 Using active and passive optical components
07/01/2004US20040126111 System and method for operating optical transponder
07/01/2004US20040126110 Systems and methods for active monitoring and management of fiber links
07/01/2004US20040126109 Method for estimating bit-error-ratios within an optical communications network
07/01/2004US20040126108 Apparatus for monitoring optical signal-to-noise ratio
07/01/2004US20040126107 Optical control system
07/01/2004US20040126067 Multi-ch optical transceiver module
07/01/2004US20040126053 Optical waveguide device, optical and electrical elements combined device, method of driving the same, and electronic equipment using the same
07/01/2004US20040125902 Phase shifter, phase shifting method and skew compensation system for high-speed parallel signaling
07/01/2004US20040125874 Method of determining an eye diagram of a digital signal
07/01/2004US20040125830 Interrupt driven wavelength locking
07/01/2004US20040125435 Nonlinear phase-shift compensation method and apparatus
07/01/2004US20040124344 Polarization mode dispersion compensator based on degree of polarization
07/01/2004DE10302435B3 Optischer Gigabit-Drehübertrager mit freiem Innendurchmesser Optical Gigabit rotary transformer with free inner diameter
07/01/2004DE10257948A1 Cable extension system for universal serial bus (USB) cabling to terminals uses a laser diode and a photodiode to transfer data and convert it into optical signals and back into electric signals
06/2004
06/30/2004EP1434397A1 Scheduling in an Ethernet-based optical network
06/30/2004EP1434377A2 Remodulators for WDM optical communication systems
06/30/2004EP1434368A2 WDM optical communication systems with wavelength-stabilized optical selectors
06/30/2004EP1434070A1 Monomode optical fiber with optimized chromatic dispersion
06/30/2004EP1433762A1 Tellurite glass and optical amplifier
06/30/2004EP1433761A1 Tellurite glass, optical amplifier, and light source
06/30/2004EP1433760A1 Optical fibre splicing structure
06/30/2004EP1433294A1 Infrared communications system comprising a coding function to reduce the maximum number of consecutive spaces in the signal sent
06/30/2004EP1433278A1 Channel identification in communications networks
06/30/2004EP1269664B1 Optical communication system with two parallel transmission paths
06/30/2004CN2622940Y Optical fiber transceiver module data checking network management appts.
06/30/2004CN2622939Y Red infrared transmission commutator
06/30/2004CN2622722Y FC optical fiber adaptor
06/30/2004CN2622721Y Optical fiber raster for ensuring wave length stability
06/30/2004CN2622720Y Six-port closed-circuit looping device
06/30/2004CN2622719Y Packer for fiber coupler
06/30/2004CN1509535A Polarization mode dispersion compensation in optical transmission media
06/30/2004CN1509534A Wavelength control using dither modulation and feedback
06/30/2004CN1509419A Reconfigurable optical add-drop multiplexers
06/30/2004CN1508989A Method and system for generating low-shaking non-return-to-zero optical data using photo-pulse stretcher
06/30/2004CN1508988A 红外无线耳机 Infrared Wireless Headphones
06/30/2004CN1508578A Optical fiber and light transfer circuit using same
06/30/2004CN1156186C Wireless base station network systems
06/30/2004CN1156115C Passive optical network system in asynchronous transfer mode
06/30/2004CN1156114C Multi-wavelength optical label transceiver based on wavelength-time encode method and receiver based said coding method
06/30/2004CN1156101C Single-photon router operation apparatus
06/30/2004CN1156100C Regulatable optical-fibre delay line with narrow line and wide seleted spectrum
06/30/2004CN1156099C Wavelength and route tunable controller
06/30/2004CN1156098C Bandwidth compensating method for ranging ATM passive optical network
06/30/2004CN1155970C Electrically optimized hybrid'Last mile'telecommunications cable system
06/30/2004CN1155811C Optical signal monitoring apparatus and method
06/30/2004CA2454487A1 Optical control system
06/29/2004US6757499 Optical transmitter and optical signal transmitter
06/29/2004US6757498 WDM optical network with passive pass-through at each node
06/29/2004US6757493 Communication link with non-intrusive expansion capability
06/29/2004US6757468 Dispersion compensation optical fiber and optical transmission line using same
06/29/2004US6757467 Optical fiber system
06/29/2004US6757461 Tunable dispersion compensation device, optical receiver, and optical fiber communication system
06/29/2004US6757456 System for selecting an appropriate optical fiber type for a communication network
06/29/2004US6757099 Optical power transient control scheme for EDFA amplifiers
06/29/2004US6757098 Highly scalable modular optical amplifier based subsystem
06/29/2004US6757057 Method and system for automatic optical fiber type identification
06/29/2004US6756926 Optical transmitter and code conversion circuit used therefor
06/29/2004US6756601 High speed optocoupler
06/29/2004US6755575 Self powered data communication optical fiber cable extender
06/29/2004CA2210348C Method and device for controlling the alignment of two lightwaves in the course of a coherent superimposed reception
06/29/2004CA2141560C Method and circuit arrangement for electric compensation of signal distortion caused by laser chirp and fiber dispersion
06/25/2004CA2454153A1 Communication device and transport system
06/24/2004WO2004054140A1 Method for optical communication, and optical receiver apparatus
06/24/2004WO2004054139A2 Optical transceiver
06/24/2004WO2004054138A2 Coherent optical detection and signal processing method and system
06/24/2004WO2004021611A3 Wireless communication system with high efficiency/high power optical source
06/24/2004WO2003063401A3 Methods and apparatuses to provide a wavelength division-multiplexing passive optical network based on wavelength-locked wavelenght-division- multiplexed light sources