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)
12/1999
12/23/1999DE19827638A1 Methode zur Messung von Störungseffekten auf Glasfaserübertragungsstrecken sowie Übertragungssystem Method for the measurement of interference effects on fiber optic transmission lines and transmission system
12/23/1999CA2335708A1 Method and multi-wavelength selective switch for switching and redirection of optical wavelengths
12/23/1999CA2335121A1 Modulating retroreflector using multiple quantum well technology
12/23/1999CA2301052A1 Wavelength tailored dispersion compensation apparatus
12/23/1999CA2275864A1 Method and apparatus for optical frequency demodulation of an optical signal using interferometry
12/22/1999EP0966117A1 Optical signal monitoring method and apparatus
12/22/1999EP0965869A2 Optical switch and optical communication system using the same
12/22/1999EP0965830A2 Procedure and device for measuring disturbing effects on glass fibre transmission lines
12/22/1999EP0965228A2 High power optical receiver
12/22/1999EP0965223A2 Satellite distributed television
12/22/1999EP0965190A1 Point-to-multipoint wide area telecommunications network via atmospheric laser transmission through a remote optical router
12/22/1999EP0965189A1 Optical bus system
12/22/1999EP0965180A1 Remote control apparatus for power line communications system
12/22/1999EP0965065A1 Optical device
12/22/1999EP0965064A1 Energy-depleted radiation apparatus and method
12/22/1999CN2355501Y Optic junction pointer for connecting oplic fiber into network
12/21/1999US6006172 Method and software for optimizing an interface between components
12/21/1999US6005997 Long-haul terrestrial optical fiber link having low-power optical line amplifiers with integrated dispersion compensation modules
12/21/1999US6005996 Branching unit for an optical fiber transmission system
12/21/1999US6005992 Optical device
12/21/1999US6005862 Node device used in network system for performing packet communications, network system using the same, and communication method used in the system
12/21/1999US6005708 Wavelength converter for binary optical signals
12/21/1999US6005702 Optical transmission device, WDM optical transmission apparatus, and optical transmission system using return-to-zero optical pulses
12/21/1999US6005701 Optical emission head with laser and modulator
12/21/1999US6005699 Optical wavelength multiplexing system
12/21/1999US6005696 Backhauling test procedures for communications networks
12/21/1999US6005694 Method and system for detecting optical faults within the optical domain of a fiber communication network
12/21/1999US6005490 Bidirectional remote control apparatus
12/21/1999CA2134256C Apparatus and method for referencing an optical receiver
12/20/1999CA2275823A1 Method for measuring interference effects on glass fiber transmission links as well as a transmission system
12/19/1999CA2272469A1 Optical communication system
12/16/1999WO1999065174A1 Method and device for dropping optical channels in an optical transmission system
12/16/1999WO1999065165A1 An add and drop node for an optical wdm network having traffic only between adjacent nodes
12/16/1999WO1999065164A2 An optical wdm network having an efficient use of wavelengths and a node therefor
12/16/1999WO1999057850A9 Sonet jo byte message monitoring system
12/16/1999CA2334542A1 Method and device for dropping optical channels in an optical transmission system
12/15/1999EP0964539A2 Receiver capable of outputting a high quality signal without regard to an input signal level
12/15/1999EP0964538A2 Optical transmitter and optical transmission system using polarisation modulation
12/15/1999EP0964537A2 Optical transmitting apparatus
12/15/1999EP0964536A2 Fault detection system for an amplified optical transmission system
12/15/1999EP0964535A1 Telecommunications system of the wavelength division multiplexing type comprising an optical channel analyser
12/15/1999EP0964487A1 Optical transmitter, optical repeater and optical cross connection device
12/15/1999EP0964237A1 Polarization mode dispersion measuring method, and a dispersion compensation control device and a dispersion compensation control method
12/15/1999EP0963629A1 Method and apparatus for maintaining availability of lifeline telephony service on a hybrid fiber-coax network
12/15/1999CN1238858A Opto-electronic module for bi-directional optical data transmission
12/15/1999CN1238618A Automatic discovery and positioning method of the network elements in network management system in case that network topology is configured
12/15/1999CN1238612A Chromatic dispersion compensating method for full-optical communication network using virtual wavelength routing
12/14/1999US6003092 Signal transmission between networked computers
12/14/1999US6002821 Optical data transmission apparatus
12/14/1999US6002820 Optical branching and insertion apparatus
12/14/1999US6002816 Optical data emitter device
12/14/1999US6002698 Nonlinearity compensation of laser diode and other semiconductor diodes
12/14/1999US6002510 Driving apparatus for optical modulator and driving apparatus for modulator integrated light source
12/14/1999US6002212 Method and device for driving a radiation emitting device
12/14/1999US6002138 Hollow covering device for lightwave or radiant energy systems
12/14/1999CA2155693C Performance monitoring and fault location in optical transmission systems
12/14/1999CA2135532C All-optical inverter
12/12/1999CA2273778A1 Telecommunications system of the wavelength division multiplexing type comprising an optical channel analyser
12/09/1999WO1999063758A1 Input position measuring instrument and entertainment system
12/09/1999WO1999063694A1 Multiwavelength mode-locked dense wavelength division multiplexed optical communication systems
12/09/1999WO1999063693A1 Centralized wavelength distribution for wavelength division multiplexed systems
12/09/1999WO1999044317A3 Protection of wdm-channels
12/09/1999DE19823213A1 Bidirektionale optische Sende- und Empfangseinrichtung Bidirectional optical transmitting and receiving device
12/09/1999DE19754473C2 Monolithisch integriertes Halbleiter-Laserarray A monolithically integrated semiconductor laser array
12/09/1999CA2333713A1 Multiwavelength mode-locked dense wavelength division multiplexed optical communication systems
12/09/1999CA2333604A1 Centralized wavelength distribution for wavelength division multiplexed systems
12/09/1999CA2299521A1 Input position measuring instrument and entertainment system
12/09/1999CA2272473A1 Fault detection system for an amplified optical transmission system
12/08/1999EP0963066A1 Apparatus and method for reducing SPM/GVD in optical systems
12/08/1999EP0963065A2 Control signal superimposing system with Raman amplifier
12/08/1999EP0963064A1 Transmission and reception apparatus of a signal encrypted based on deterministic chaos
12/08/1999EP0963063A2 Free-space optical lasercom system
12/08/1999EP0963062A1 Ground station communication method through a satellite constellation
12/08/1999EP0962795A2 Optical connection and connection unit for exchange of data between devices
12/08/1999EP0962107A2 Hybrid universal broadband telecommunications using small radio cells interconnected by free-space optical links
12/08/1999EP0962065A1 Reduction of collision induced timing jitter by periodic dispersion management in soliton wdm transmission
12/08/1999EP0820666B1 Optical multichannel system
12/08/1999CN1238082A Apparatus for communication by an electronic device and method for communicating between electronic devices
12/08/1999CN1237840A Signal monitoring apparatus for wavelength division multiplexed optical telecommunication networks
12/07/1999US5999996 Adapter for wirelessly interfacing a full-size stand alone keyboard with a handheld computing device
12/07/1999US5999673 Coupling arrangement between a multi-mode light source and an optical fiber through an intermediate optical fiber length
12/07/1999US5999411 Apparatus for protecting connectors on circuit packs
12/07/1999US5999300 Hybrid single sideband optical modulator
12/07/1999US5999299 Laser communication device
12/07/1999US5999298 Electroabsorption optical intesity modulator having a plurality of absorption edge wavelengths
12/07/1999US5999297 Method of putting binary data on an optical carrier wave, and a transmission system using the method
12/07/1999US5999296 Optical head of optical beacon
12/07/1999US5999295 Stackable network modules using infrared communications
12/07/1999US5999294 Detachable antenna with optical port
12/07/1999US5999291 Centralized wavelength distribution for wavelength division multiplexed systems
12/07/1999US5999289 Detection of, and compensation for, waveform change due to chromatic dispersion
12/07/1999US5999288 Connection set-up and path assignment in wavelength division multiplexed ring networks
12/07/1999US5999287 Node in optical TDM network
12/07/1999US5999285 Positive-operator-valued-measure receiver for quantum cryptography
12/07/1999US5999258 Optical interference measurement method and system
12/07/1999CA2237282C Optical fiber having a low-dispersion slope in the erbium amplifier region
12/07/1999CA2169553C System and method for key distribution using quantum cryptography
12/07/1999CA2169552C Key distribution in a multiple access network using quantum cryptography
12/07/1999CA2124124C Ultra-high capacity non-soliton optical transmission using optical phaseconjugation
12/05/1999CA2273691A1 System for the determination of alignment data in optical communications connections
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