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)
12/1998
12/16/1998CN1202285A Method for independently controlling wavelength component powers in optical wavelength division multiplexed transmission system
12/16/1998CN1202057A Fault restoration control method and its apparatus in communication network
12/16/1998CN1202056A Method and apparatus for secure optical communications links
12/16/1998CN1201913A Optical fiber having low-dispersion slope in erbium amplifier region
12/15/1998US5850610 Method and apparatus for providing zoned communications
12/15/1998US5850492 Acousto-optical waveguide device with compensation of polarization mode dispersion
12/15/1998US5850441 System and method for key distribution using quantum cryptography
12/15/1998US5850375 System and method using optical fibers in a data storage and retrieval system
12/15/1998US5850305 Adaptive predistortion control for optical external modulation
12/15/1998US5850304 Optically programmable controller
12/15/1998US5850303 Optical transmission system and optical transmission device used therefor
12/15/1998US5850301 Wavelength multiplexed light transfer unit and wavelength multiplexed light transfer system
12/15/1998US5850300 Diffractive beam homogenizer having free-form fringes
12/15/1998US5850292 Wavelength monitor for optical signals
12/15/1998US5850189 Apparatus and method for infrared communication
12/15/1998CA2117825C Fet-based optical receiver
12/10/1998WO1998056191A1 Interconnect apparatus including a signal bus
12/10/1998DE19723103A1 Receiver for receiving optical signals from optical communications network
12/09/1998EP0883322A1 Optical-loop buffer that enhances the extinction ratio of the buffered signal
12/09/1998EP0883272A2 Information processing apparatus having a wireless communication function
12/09/1998EP0883264A1 Datatransmission system
12/09/1998EP0883259A2 CDMA receiver for an optical transmission system and a method of operating this receiver
12/09/1998EP0883256A1 Soliton WDM optical fibre transmission system with saturable absorbers
12/09/1998EP0883255A2 Optically amplified WDM transmission system
12/09/1998EP0883254A2 Receiver for receiving optical signals
12/09/1998EP0883253A1 Method and apparatus for optimizing optical intersatellite connections
12/09/1998EP0883218A1 Wide band optical amplifier
12/09/1998EP0883217A1 Optical fiber telecommunication system
12/09/1998EP0883002A1 Optical fiber having a low-dispersion slope in the erbium amplifier wavelength region
12/09/1998EP0882334A1 Dispersion compensation in optical fibre transmission
12/09/1998EP0765546B1 Free space communications system employing line of sight radiation
12/09/1998CN1201284A Optical receiver and optical radio transmission system thereof
12/08/1998US5848205 Polarization independent non-linear optical mirror
12/08/1998US5848084 Semiconductor light source for an optical transmitter and an optical transmission module using the semiconductor light source
12/08/1998US5848059 Node device used in network system for packet communication, network system using such node devices, and communication method used therein
12/08/1998US5847862 Multi-channel optical fiber communication system
12/08/1998US5847856 Optical power monitor device, optical amplifier, and optical transmitter
12/08/1998US5847855 Integrated coherent transceiver
12/08/1998US5847854 Filtered light signal control suitable for toys
12/08/1998US5847853 Modulation and demodulation of light to facilitate transmission of information
12/08/1998US5847852 Optical network
12/08/1998US5847831 Apparatus for monitoring the state of a liquid-crystal polarization
12/08/1998CA2070122C Optical reflective star device
12/06/1998CA2239756A1 Optical fiber telecommunication system
12/05/1998CA2239083A1 System for fibre optic transmission with soliton signals, wavelength multiplexing and saturable absorbent
12/05/1998CA2238950A1 Optically amplified wdm transmission system
12/03/1998WO1998054863A1 Span management system for wavelength division multiplexed network
12/03/1998WO1998054862A1 Signal-to-noise monitoring in wdm optical communication systems
12/03/1998WO1998054854A1 Modulation format adjusting optical transponders
12/03/1998WO1998054709A1 System and method for generating position error signals within a computer memory device
12/03/1998CA2291610A1 Modulation format adjusting optical transponders
12/03/1998CA2236862A1 Receiver for receiving optical signals
12/02/1998EP0881791A2 System for optical transmission of information
12/02/1998EP0881790A1 Optical transmission system with dynamic compensation of the transmitted power
12/02/1998EP0881789A2 Receiver for an optical telecommunication system, filter arrangement and operating method therefor
12/02/1998EP0881788A2 Optical receiver and related optical wireless transmission system
12/02/1998EP0881787A2 Light transmission apparatus using carrier wave
12/02/1998EP0881726A2 Direct amplitude modulation of lasers
12/02/1998EP0881511A2 Active multimode optical signal splitter
12/02/1998EP0880832A1 Optical pulse source
12/02/1998EP0880717A1 Optical interface for sealed environments
12/02/1998CN1200797A Vertical cavity surface emitting laser arrays for illumination
12/02/1998CN1200490A Controlling device of tunable filter
12/01/1998US5844889 Different system transfer method for a ring transmission system and transmission apparatus
12/01/1998US5844706 Fibre-optic communications-transmission method and intermediate repeater for use in the method
12/01/1998US5844705 Wireless communications systems employing free-space optical communications links
12/01/1998US5844704 Optical packet address detector
12/01/1998US5844702 Bidirectional optical fiber transmission system with reflection signal monitor
12/01/1998CA2142342C Apparatus for adapting an electrical communications port to an optical communications port
12/01/1998CA2114729C Network with line monitoring system
12/01/1998CA2039786C Ring communication system
12/01/1998CA2035804C Double-core, active fiber optical amplifier having a wide band signal wavelength
11/1998
11/30/1998CA2235179A1 Direct amplitude modulation of lasers
11/28/1998CA2235834A1 Receiver for an optical communications system and method for operating such a system
11/28/1998CA2235769A1 Receiver for an optical communications system, filter device, and method for operating such a system
11/26/1998WO1998053610A1 Photonic home area network
11/26/1998WO1998053571A2 Distributed intelligence wavelength division multiplexed network
11/26/1998WO1998053564A1 Communications apparatus comprising optical amplifier
11/26/1998WO1998053538A1 Optical amplifier evaluation method and optical amplifier evaluation device
11/26/1998DE19707501C1 Optical microcable network with radio connections to subscribers
11/26/1998CA2290955A1 Communications apparatus comprising optical amplifier
11/25/1998EP0880249A2 FWM Light suppressing system
11/25/1998EP0880243A2 Optical fiber transmission line
11/25/1998EP0880242A2 Bidirectional optical spatial transmission apparatus
11/25/1998EP0880041A2 Optical device for an optical network unit and manufacturing method therefor
11/25/1998EP0880031A1 Satellite Navigation System
11/25/1998EP0879509A1 Bidirectional optic link and device for amplifying such link
11/25/1998EP0803139B1 Q-switched laser system
11/25/1998EP0766890B1 Device for transmitting and receiving rotating light signals
11/25/1998EP0723716B1 Optical pulse sequence generator
11/25/1998EP0722640B1 Cryptographic receiver
11/25/1998EP0717895B1 Key distribution in a multiple access network using quantum cryptography
11/25/1998EP0547072B1 Method and apparatus for transmitting information
11/25/1998CN1200211A Optical satellite feederlinks
11/25/1998CN1199964A Optical device for optical communication terminal station and manufacturing method therefor
11/25/1998CN1199963A Sensor array tracking and detection system
11/25/1998CN1199962A Laser air transmission method
11/25/1998CN1199943A Current control for analog optical link
11/25/1998CN1199867A Operation of optical modulators
11/25/1998CN1199866A Optical receiver and demultiplexer for free-space wavelength division multiplexing communications systems
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