Patents
Sitemap › H04 - Electric communication technique › H04B - Transmission › 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)
03/2000
03/21/2000US6040571 Time domain multiplexed amplified sensor arrays with improved signal to noise ratios
03/21/2000CA2281747A1 Device for controlling the beam alignment in satellite laser communications systems
03/21/2000CA2159041C Transmitter module for optical interconnections
03/21/2000CA2156430C Generation of optical signals with rf components
03/17/2000CA2282607A1 Method for providing a bidirectional optical supervisory channel
03/17/2000CA2282252A1 Optical device for processing a sequence of bits
03/17/2000CA2282251A1 Optical device for processing an optical impulse
03/16/2000WO2000014917A2 Implementing an optical wdm connection
03/16/2000WO2000014909A1 Method and apparatus for optical system link control
03/16/2000WO2000014889A1 Electronic circuit
03/16/2000WO2000014813A1 Device with optical communication means
03/16/2000WO1999066607A3 Fiber-optic compensation for dispersion, gain tilt, and band pump nonlinearity
03/16/2000CA2341674A1 Method and apparatus for optical system link control
03/15/2000EP0986198A2 Optical amplifier repeater and long-haul optical amplifer lumped repeating method
03/15/2000EP0986197A2 Optical transmitting/receiving method and apparatus
03/15/2000EP0986170A1 Interfacing device between a broadband microwave opto-electronic sensor and a load
03/15/2000EP0986149A2 Optical amplifier
03/15/2000EP0985942A2 Add/drop filter for a multi-wavelength lightwave system
03/15/2000EP0985941A2 Reconfigurable optical fiber grating with enhanced temperature sensitivity cladding
03/15/2000EP0985291A1 Signal-to-noise monitoring in wdm optical communication systems
03/15/2000EP0985290A2 Distributed intelligence wavelength division multiplexed network
03/15/2000EP0985286A1 Communications apparatus comprising optical amplifier
03/15/2000CN1247655A Optical fiber amplifier having variable gain
03/15/2000CN1247328A Light amplifier optical transmission equipment, optical transmission system and relative method
03/14/2000US6038499 Direction detecting device for detecting direction of space vehicle
03/14/2000US6038356 Lightwave transmission system employing raman and rare-earth doped fiber amplification
03/14/2000US6038355 Optical bus
03/14/2000US6038236 Transmission control method in network system for signal transmission by plural channels and network system therefor
03/14/2000US6038063 Optical amplifier and optical transmission system including the optical amplifier
03/14/2000US6038062 Optical amplifier, method of controlling the output light from the optical amplifier, optical transmission system and method of controlling an optical transmission path
03/14/2000US6038049 Waveform-shaping circuit and a data-transmitting apparatus using such a circuit
03/14/2000US6038048 Apparatus for communication between multiple processing modules
03/14/2000US6038047 Optical telecommunication method providing a transmitting and receiving service channel
03/14/2000US6038046 Branching system with optical add drop multiplexing function
03/14/2000US6038045 Apparatus for adding and dropping wavelength multiplex channels
03/14/2000US6038044 Ring/mesh optical network
03/14/2000US6037832 Temperature dependent constant-current generating circuit and light emitting semiconductor element driving circuit using the same
03/09/2000WO2000013361A1 Wdm ring network
03/09/2000WO2000013350A2 Method and apparatus for optical performance monitoring in wavelength division multiplexed fiber optical systems
03/09/2000WO2000013347A1 Optical switch
03/09/2000WO2000013346A1 Method and system for preventing burn-out of infrared transmitter diodes
03/09/2000WO2000013345A1 Optical signal quality monitor
03/09/2000WO2000013344A1 Optical remote control interface system and method
03/09/2000WO2000013313A1 Optical amplifiers and optical transmission line
03/09/2000WO2000013270A1 Multi-frequency optical source for telecommunications
03/09/2000WO2000013051A1 Diffractive vertical cavity surface emitting laser power monitor and system
03/09/2000WO1999052010A3 Optical computational system
03/09/2000DE19838788A1 Geregelter optischer Verstärker Controlled optical amplifier
03/09/2000CA2341545A1 Method and apparatus for optical performance monitoring in wavelength division multi-plexed fiber optical systems
03/08/2000EP0984580A2 Scalable optical demultiplexing arrangement for wide band dense wavelength division multiplexed systems
03/08/2000EP0984575A2 Forward error correction for high speed optical transmission systems
03/08/2000EP0984572A1 Polarisation dispersion compensation device of the channels in a WDM signal
03/08/2000EP0984571A2 Method of measuring the polarisation mode dispersion
03/08/2000EP0984560A2 Remote controllers and methods of selectively setting remote control signals
03/08/2000EP0984532A1 Article comprising an optical fiber cascaded raman resonator
03/08/2000EP0984320A1 Information transmitting apparatus using flash light emission
03/08/2000EP0983650A1 Optical communications system including arrangement connecting a multimode fibre to a singlemode fibre
03/08/2000CN1246759A Regenerative equipment of on-line regenerative optical signal and transmission system containing it
03/08/2000CN1246758A Power-saving sensing receiver system using infrared ray
03/08/2000CN1246640A Long-wave long-fibre-optical amplifier
03/08/2000CN1246627A Extendible and contractable optical demultiple device for broadband DWDM system
03/07/2000US6034938 Data storage system having an optical processing flying head
03/07/2000US6034802 Wireless communications systems with self threshold setting
03/07/2000US6034801 Transmitting device, transmitting apparatus and optical transmission system for optically transmitting analog electrical signals
03/07/2000US6034800 NXN light matrix switch
03/07/2000US6034799 Tuning source for lightwave systems
03/07/2000US6034798 Optical network and arrangement and method in such network
03/07/2000CA2166750C Passive optical network having amplified led transmitters
03/04/2000CA2281298A1 Laser oscillation wavelength monitoring device
03/02/2000WO2000011816A1 In-line predistorter for linearization of electronic and optical signals
03/02/2000WO2000011815A1 Dispersion compensating element having an adjustable dispersion
03/02/2000WO2000011780A1 Transimpedance amplifier with automatic gain control
03/02/2000WO2000011510A1 Tunable periodic filter
03/02/2000WO1999065164A3 An optical wdm network having an efficient use of wavelengths and a node therefor
03/02/2000WO1999059272A9 Method and apparatus for automated time domain monitoring in optical networks
03/02/2000DE19838352C1 Optical transmitter for laser diode array
03/02/2000DE19837409A1 Carrier recovery in phase shift keying (PSK) homodyne receiver which receives PSK modulated optical signals from transmitter
03/02/2000DE19835681A1 Optical communications system for transmitting signals via light conductors, has mode coupler or mixer for reducing dispersion at or after mode transition and before transmission path
03/02/2000CA2342212A1 Dispersion compensating element having an adjustable dispersion
03/02/2000CA2340409A1 Tunable periodic filter
03/01/2000EP0982891A1 Device for add-dropping wavelength multiplexed optical signals
03/01/2000EP0982883A2 Optical transmitter and optical transmission system
03/01/2000EP0982882A2 Method of compensating the polarisation mode dispersion
03/01/2000EP0982881A2 Optical amplifier, transmission equipment, transmission system, and method
03/01/2000EP0982880A2 Optical transmitter having temperature compensating function and optical transmission system
03/01/2000EP0982608A1 Optical rotating coupler
03/01/2000EP0981870A2 Optical add/drop device
03/01/2000EP0981869A1 Modulation format adjusting optical transponders
03/01/2000EP0981868A1 External optical modulation system comprising a predistorter
03/01/2000EP0931384B1 Data transmission equipment
03/01/2000CN1246182A Multi-stage fiber amplifier with flattened gain curves
03/01/2000CN1246006A Optical transmission system with optical restoration
03/01/2000CN1246005A Compact wavelength division multiplex optic transmission system with double bandwidth
03/01/2000CN1246002A Optical transmitter with temperature-compensation function and optical transmission system
03/01/2000CN1245913A Connecting component of computer and port copier
02/2000
02/29/2000US6032185 Bus network with a control station utilizing tokens to control the transmission of information between network stations
02/29/2000US6031955 Dispersion compensating optical fiber
02/29/2000US6031949 Optical data communication system
02/29/2000US6031825 Infrared audio link in mobile phone
02/29/2000US6031659 Optical amplifier for wavelength-division multiplexing
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