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

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)
11/2002
11/28/2002	US20020176157 Bit-rate and format insensitive all-optical clock extraction circuit
11/28/2002	US20020176156 Control architecture and method for optical amplifiers
11/28/2002	US20020176154 Optical amplification apparatus utilizing raman amplification and controlling method thereof
11/28/2002	US20020176144 Optical transmission system using optical signal processing in terminals for improved system performance
11/28/2002	US20020176143 Reverse digitized communications architecture
11/28/2002	US20020176142 Optical transmission apparatus and optical systems
11/28/2002	US20020176141 Method and apparatus for optical data transmission
11/28/2002	US20020176140 Photonic bipolar modem for secure multi-channel communication
11/28/2002	US20020176139 SONET capable millimeter wave communication system
11/28/2002	US20020176138 Infrared encoder/decoder having hardware and software data rate selection
11/28/2002	US20020176136 Remote-controlled vibrating plate
11/28/2002	US20020176135 Multiplexer and demultiplexer for single mode optical fiber communication links
11/28/2002	US20020176133 Method of adjusting power for a wavelength-division multiplexed optical transmission system
11/28/2002	US20020176132 Differential dense wavelength division multiplexing (DDWDM) in optical systems
11/28/2002	US20020176130 Optical network with fault/normal pattern tables for identifying location of path failure
11/28/2002	US20020176129 Performance monitoring in an optical communication system
11/28/2002	US20020176128 Test method and apparatus for parallel optical transceivers using serial equipment
11/28/2002	US20020176080 Polarization compensator and wavelength division multiplexing apparatus using same
11/28/2002	US20020175776 Optical to microwave converter using direct modulation phase shift keying
11/28/2002	US20020175275 Apparatus and method for measuring optical signals by optical sampling
11/28/2002	DE10219156A1 Device operation inspection apparatus in optical fiber communication system, has optical attenuator with optical fiber cords, to adjust damping factor by varying space between other end of connection portion and device
11/28/2002	DE10122013A1 Setting working point of optical transmitter involves varying feedback signal with reference signal constant until desired working point for optical transmitter has been set
11/28/2002	DE10112834C1 Direct signal mixing device for modulated light detection signal and HF AC voltage uses anti-serial diode pair
11/28/2002	CA2349028A1 Integrated double pass demultiplexer/variable optical attenuator for channel equalization
11/27/2002	EP1261159A1 Differential dense wavelength division multiplexing (DDWDM) in optical systems
11/27/2002	EP1261153A1 Optical module for a parallel dispersion management
11/27/2002	EP1261086A1 Semiconductor optical amplifier providing high gain, high power and low noise figure
11/27/2002	EP1261082A1 Optoelectronic circuit and control circuit
11/27/2002	EP1260104A2 Broadband telecommunications switch array
11/27/2002	EP1260044A1 Method and apparatus for polarization multiplexing and demultiplexing optical tributary signals
11/27/2002	EP1260043A1 Arrangement for producing a wavelength-multiplex signal with small interchannel spaces
11/27/2002	EP1260041A2 Optical fiber network
11/27/2002	EP1260040A1 Method for transmitting additional optical signals in the s-band
11/27/2002	EP1260039A2 Application of digital processing scheme for enhanced cable television network performance
11/27/2002	EP1260038A2 Optical isolation apparatus and method
11/27/2002	EP1190612B1 Method and device for transmitting data between pick-and-place robots and a feeding unit, pick-and-place robot and feeding unit
11/27/2002	EP1180250B1 Method and system for generating return-to-zero signals
11/27/2002	EP0677174B1 Process for altering the intensity and phase ratios in multi-mode interference couplers
11/27/2002	EP0660984B1 Path integrity proving in optical communications systems
11/27/2002	CN2523124Y Dynamic gain flattener based on long-period optical fibre raster
11/27/2002	CN2523123Y 密集波分复用模组 Dense Wavelength Division Multiplexing Module
11/27/2002	CN2523122Y Dense wavelength division multiplexing apparatus
11/27/2002	CN2523121Y Wavelength division multiplexing/de-multiplexer
11/27/2002	CN2523120Y Digital video signal optical transmission adapting equipment
11/27/2002	CN2522887Y Photoswithch device
11/27/2002	CN2522884Y Moving reflectortype photoswitch device
11/27/2002	CN2522881Y Light-adjustable attenuator
11/27/2002	CN1381963A Multi-grain optical router based on optical burst switch
11/27/2002	CN1381960A Intelligent light/electricity/light repeater for optical fibre loop MAN with elastic packet
11/27/2002	CN1381959A Photoelectric transceiver
11/27/2002	CN1095269C Modem loop current detect system to detect off-hook condition in extension telephone
11/27/2002	CN1095245C Biphase or FM moden using flash modulation and modulation-demodulation method
11/26/2002	US6487405 Communication system with multicarrier telephony transport for controlling a plurality of service units
11/26/2002	US6487352 Electrical detector for adaptive control of chromatic dispersion in optical systems
11/26/2002	US6487338 Profile matching fiber patchcord for fundamental mode excitation in graded-index multimode fiber
11/26/2002	US6487332 Strictly non-blocking wavelength division multiplexed (WDM) cross-connect device for use in a heterogeneous network
11/26/2002	US6487330 Optical switch, method of manufacturing same, and optical communication equipment using same
11/26/2002	US6487022 Transmitter using uniform intensity transmission for a wireless optical communication system
11/26/2002	US6487008 Light amplifying device
11/26/2002	US6487005 Optical fiber transmission system with chromatic dispersion compensation
11/26/2002	US6486994 Multi-directional infrared port and methods of using same
11/26/2002	US6486993 Wavelength dispersion compensation apparatus in wavelength multiplex transmission system
11/26/2002	US6486992 Modulating and demodulating method and transmitting method of control apparatus and control apparatus
11/26/2002	US6486991 Optical transmission system having an optical surge suppression function
11/26/2002	US6486990 Method and apparatus for communicating a clock signal in a soliton optical transmission system
11/26/2002	US6486989 Optical communications terminal station, optical signal transmission method, and optical signal increasing method in wavelength multiplexing system
11/26/2002	US6486988 Upgrading optical communications systems without traffic interruption
11/26/2002	US6486987 Circuit arrangement for the operation of wavelength division multiplexing
11/26/2002	US6486986 System for optically transmitting frequency-division-multiplexed signal and transmitter therefor
11/26/2002	US6486985 Method for transmitting an additional data signal and a useful data signal in an optical network
11/26/2002	US6486984 Wavelength monitor using hybrid approach
11/26/2002	US6486958 Method and system for optical spectrum analysis with matched filter detection
11/26/2002	CA2245873C Optical pulse source
11/25/2002	CA2387556A1 Spread spectrum telemetry of physiological signals
11/23/2002	CA2381682A1 Performance monitoring in an optical communication system
11/21/2002	WO2002093806A1 Signal addition to a wave division multiplex system
11/21/2002	WO2002093796A1 Optical communication network
11/21/2002	WO2002093795A2 Dispersion-managed cable for raman-assisted transmission
11/21/2002	WO2002093794A2 Optical amplifier performance controller and method of use
11/21/2002	WO2002093793A1 Optical communication method and optical communication system
11/21/2002	WO2002093792A1 A synchronous receiving method and the circuit of uplink high speed data in optical communication system
11/21/2002	WO2002093791A1 Hyper-dense wavelength multiplexing system
11/21/2002	WO2002093790A1 Multilevel optical signal, independent of noise and intersymbol interference.
11/21/2002	WO2002093789A1 High-speed, customizable subscriber optical wireless link network
11/21/2002	WO2002093704A1 Optical fiber and system containing same
11/21/2002	WO2002093686A1 Reverse path optical combining using an optical commutator
11/21/2002	WO2002093528A1 Economical extension of the operating distance of an rf remote link accommodating information signals having differing carrier frequencies
11/21/2002	WO2002093527A1 Economical extension of the operating distance of an rf remote link accommodating ir remote controls having differing ir carrier frequencies
11/21/2002	WO2002093115A2 System for monitoring wavelength
11/21/2002	WO2002075999A3 Method and apparatus for interconnecting a plurality of optical transducers with a wavelength division multiplexed optical switch
11/21/2002	WO2002075935A3 Apparatus for frequency tuning and locking and method for operating same
11/21/2002	WO2002075934A3 Method and system for dispersion maps and enhanced distributed gain effect in long haul telecommunications
11/21/2002	WO2002043340A3 Method and apparatus to identify and characterize nonlinearities in optical communications channels
11/21/2002	WO2002030018A3 Hybrid amplifier that minimizes noise figure for a particular fibre span loss
11/21/2002	WO2001086344A9 Parabolic pulse communication system and method
11/21/2002	US20020174378 Optical clock recovery device for recovering the clock from an optical signal
11/21/2002	US20020173332 Optical communication system with dynamic bandwidth allocation
11/21/2002	US20020173089 Vertical cavity surface emitting laser with buried dielectric distributed bragg reflector
11/21/2002	US20020172458 Optical system that improves spectrally distorted signals
11/21/2002	US20020172456 Dispersion compensator and optical transmission system using same

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