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)
10/2000
10/25/2000EP1047276A2 Distributed fiber system supporting soft handover in CDMA cellular system
10/25/2000EP1046937A1 Increased capacity optical waveguide
10/25/2000EP1046248A1 Device and method for optical free space transmission
10/25/2000EP1046202A1 Automatic compensation of cnr and omi in a laser transmitter
10/25/2000EP1045902A1 HUMAN SUPPRESSOR tRNA OLIGONUCLEOTIDES AND METHODS OF USE FOR SAME
10/25/2000EP0922333B1 Digital optical receiver with instantaneous josephson clock recovery circuit
10/25/2000EP0903020B1 Optical transmitter arrangement
10/25/2000CN1271457A Electrically optimized hybrid 'Last mile' telecommunications cable system
10/24/2000US6137934 Optical cable with tubular metal core and method of making same
10/24/2000US6137932 Apparatus for controlling gain of an optical fiber amplifier and method thereof
10/24/2000US6137831 Method and apparatus for reducing receiver imposed distortion
10/24/2000US6137803 Communication system
10/24/2000US6137794 Audio-visual projector control apparatus allowing selection among multiple input devices
10/24/2000US6137654 Device having a diskette-like housing and a wireless transceiver and methods therefor
10/24/2000US6137613 Optical transmission apparatus in which light signal with selected wavelength is modulated with selected data signal
10/24/2000US6137612 Method and system for channelization and down conversion of wideband subscriber information signals
10/24/2000US6137611 Suppression of coherent rayleigh noise in bidirectional communication systems
10/24/2000US6137610 Optical synchronization arrangement
10/24/2000US6137609 Over-the-horizon optical communications transceiver
10/24/2000US6137608 Optical network switching system
10/24/2000US6137607 Broadband communications method and apparatus for reducing optical beat interference
10/24/2000US6137606 Optical wavelength router
10/24/2000US6137605 Output power control system for optical amplification repeater
10/24/2000US6137604 Chromatic dispersion compensation in wavelength division multiplexed optical transmission systems
10/24/2000US6137603 Optical network, optical division and insertion node and recovery system from network failure
10/24/2000US6137101 Light receiving amplifying device
10/22/2000CA2306019A1 Measuring system of transmission characteristics
10/19/2000WO2000062382A1 Optical transmitter and optical transmission system comprising the same
10/19/2000WO2000062123A1 Single-photon-emission apparatus
10/19/2000WO2000025433A9 Laser based wireless communications system and method
10/19/2000DE19916754A1 Optical data transmission installation making available transmitted data information to several receivers in entire space with low optical radiation power
10/19/2000DE19913374A1 Anordnung zur kanalindividuellen Dispersionskompensation eines Wellenlängen-Multiplexsignals Arrangement for dispersion compensation of a channel-specific wavelength division multiplexed signal
10/19/2000CA2372080A1 Optical transmitter and optical transmission system comprising the same
10/18/2000EP1045536A1 Optical fiber communication network device
10/18/2000EP1045535A2 Optical amplifier equipment for WDM optical communication
10/18/2000EP1044529A1 Optical add-drop multiplexer
10/18/2000EP1044522A1 Optical device for monitoring multi-wavelength signals
10/18/2000EP1044521A1 A long-haul terrestrial optical fiber link having low-power optical line amplifiers with integrated dispersion compensation modules
10/18/2000EP1044520A1 Optically coupled isolator housing and assembly
10/18/2000EP1044487A1 An integrated optical transceiver
10/18/2000EP1019991A4 Optical amplifier apparatus
10/18/2000CN1270732A Process scheduling in computer network
10/18/2000CN1270719A Optical amplifier with gain adjustment
10/18/2000CN1057614C Pixel control circuitry for spatial light modulator
10/17/2000US6134366 Reduced dispersion optical waveguide and methods for fabricating the same
10/17/2000US6134281 Method and apparatus for calibration of a signal processing system utilizing digital down converters
10/17/2000US6134250 Wavelength-selectable fiber ring laser
10/17/2000US6134047 Optical amplifier designs for multichannel fiber optic communication networks
10/17/2000US6134038 Optical signal for a soliton optical transmission system
10/17/2000US6134037 Reduction of interferometer noise in an optical network
10/17/2000US6134036 Add/drop multiplexer node
10/17/2000US6134035 Optical network termination unit of a hybrid fiber/coax access network
10/17/2000US6134034 Apparatus and method for controlling power levels of individual signal lights of a wavelength division multiplexed signal light
10/17/2000US6134033 Method and apparatus for improving spectral efficiency in wavelength division multiplexed transmission systems
10/17/2000US6134032 Method and apparatus for automatically identifying system faults in an optical communications system from repeater loop gain signatures
10/17/2000US6134031 Polarization control optical space switch
10/12/2000WO2000060786A2 Method for measuring the quality of transmission in networks
10/12/2000WO2000060776A1 Device and method for compensating polarization mode dispersion in an optical communication system
10/12/2000WO2000060775A1 Wdm optical communication system
10/12/2000WO2000060774A1 Improved circuit design and optics system for infrared signal transceivers
10/12/2000WO2000060773A1 Method and apparatus for automatically identifying system faults in an optical communications system from repeater loop gain signatures
10/12/2000WO2000060772A1 Network switch for failure restoration
10/12/2000WO2000035105A3 System for dealing with faults in an optical link
10/12/2000WO2000028670A3 Protection in an optical telecommunications system
10/12/2000CA2369113A1 Device and method for compensating polarization mode dispersion in an optical communication system
10/12/2000CA2369048A1 Network switch for failure restoration
10/12/2000CA2333477A1 Wdm optical communication system
10/12/2000CA2300747A1 Method, apparatus and system for wdm system equalization
10/11/2000EP1043868A2 Optoelectronic network interface device
10/11/2000EP1043859A2 Optical add/drop multiplexer node device
10/11/2000EP1043856A2 Method and apparatus for implementing a wavelength division multiplexing communication system
10/11/2000EP1043849A2 Splitter for use with an optical amplifier
10/11/2000EP1043848A2 Improvements in or relating to optical signal scrambling
10/11/2000EP1043846A2 Wireless transmission communication system
10/11/2000EP1043815A2 Optical fiber communication system employing Nd doped fiber amplifier for the 1400 nm window
10/11/2000EP1043780A1 Device with optical communication means
10/11/2000EP1042875A1 An optical transmitter
10/11/2000EP1042871A1 Digital radio-frequency transceiver
10/11/2000EP1042658A1 Method of and system for characterization of fiber optic connections in situ
10/11/2000CN2400973Y Four-track large-power infrared transmitting and receiving system
10/11/2000CN1269945A Interconnection system for optical networks
10/11/2000CN1269929A Method and apparatus for laser communication through lossy medium
10/11/2000CN1269645A Analog and data interface device for light synchronizing digital transmission equipment
10/10/2000US6130971 Fiber optic dense wavelength division multiplexer with a phase differential method of wavelength separation utilizing a polarization beam splitter and a nonlinear interferometer
10/10/2000US6130775 Bidirectional optical fiber amplifier
10/10/2000US6130767 Method and apparatus for conditioning optical solitons
10/10/2000US6130766 Polarization mode dispersion compensation via an automatic tracking of a principal state of polarization
10/10/2000US6130765 Drop/insert apparatus for dropping/inserting channels on a bidirectional multi-channel optical link
10/10/2000US6130764 Transmission apparatus in ring network
10/10/2000US6130754 Eyesafe transmission of hazardous laser beams
10/10/2000US6129449 Self-contained portable computing unit
10/10/2000CA2200384C An optical communications system having distributed intelligence
10/05/2000WO2000059140A1 Method using photonic crystals for the dispersion compensation of optical signals of different wavelengths which are transmitted together
10/05/2000WO2000059139A1 Communications network
10/05/2000WO2000059126A1 Optical amplifier
10/05/2000WO2000058832A1 Fault protection in networks
10/05/2000WO2000004660A8 Optical communication system that transmits and receives data through free space
10/05/2000DE19915091A1 Transmission quality measurement method for optical wavelength division multiplexed (WDM) network using symbols
10/05/2000DE19911133A1 Circuit isolator for signal transmission galvanically separating input circuit from output circuit, has receiver of opto-coupler arranged between reference input and collector connection of second regulatable Zener diode
10/05/2000DE19909565A1 Verfahren zur Überwachung des Betriebes von optischen Fasern A method for monitoring the operation of optical fibers
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