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) |
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08/31/1999 | US5945668 Fiber optic system with open fiber safety interlock |
08/31/1999 | CA2111450C High-power signals optical generator for telecommunication equipments |
08/27/1999 | CA2242624A1 Method and device for receiving a phase-modulated light signal and for the detection of alignment errors |
08/26/1999 | WO1999043121A2 Communications link optical amplification and dispersion compensation |
08/26/1999 | WO1999043118A1 Dense wdm in the 1310nm band |
08/26/1999 | WO1999043117A2 Upgradable, gain flattened fiber amplifiers for wdm applications |
08/26/1999 | WO1999043115A1 Ring/mesh optical network |
08/26/1999 | WO1999043108A1 Hybrid analog/digital wdm access network with mini-digital optical node |
08/26/1999 | WO1999043107A1 Optical amplifier having an improved noise figure |
08/26/1999 | WO1999043106A1 Method for transferring utility optical signals and optical-line network |
08/26/1999 | WO1999042984A1 Light emitting diode dot matrix display system with audio output |
08/26/1999 | WO1999042893A1 Tunable optical add/drop multiplexer |
08/26/1999 | WO1999042874A1 Bi-directional dispersion compensator |
08/26/1999 | WO1999042803A1 Branch line monitoring system and branch line monitoring method |
08/26/1999 | DE19807069A1 Optical signal transmission method for optical information communications |
08/26/1999 | CA2324417A1 Tunable optical add/drop multiplexer |
08/26/1999 | CA2321500A1 Dense wdm in the 1310nm band |
08/26/1999 | CA2320872A1 Upgradable, gain flattened fiber amplifiers for wdm applications |
08/26/1999 | CA2320833A1 Ring/mesh optical network |
08/26/1999 | CA2300941A1 Multiple-window dense wavelength division multiplexed communications link with optical amplification and dispersion compensation |
08/26/1999 | CA2261981A1 A gain control arrangement and method |
08/25/1999 | EP0938244A2 Optical wavelength multiplexing system having a redundant configuration |
08/25/1999 | EP0938243A2 Optical switch |
08/25/1999 | EP0938197A2 High capacity chirped-pulse wavelength-division multiplexed communication method and apparatus |
08/25/1999 | EP0938196A2 Optical transmitter and optical transmitting apparatus using the same |
08/25/1999 | EP0938195A2 Control signal transmission method and apparatus for optical transmission system |
08/25/1999 | EP0938172A2 Article comprising an improved cascaded optical fiber raman device |
08/25/1999 | EP0938169A2 Hight power multiwavelength light source |
08/25/1999 | EP0938001A1 Dual window wdm optical fiber communication |
08/25/1999 | EP0937346A1 Programmable wavelength router |
08/25/1999 | EP0700608B1 Reduction of interferometric noise in an optical network |
08/25/1999 | EP0664060B1 Apparatus for adapting an electrical communications port to an optical communications port |
08/25/1999 | CN1226693A Signal transfer apparatus of computer |
08/24/1999 | US5943636 Method and apparatus to calibrate and run optical delay devices |
08/24/1999 | US5943456 Coarse wavelength division multiplexing optical system |
08/24/1999 | US5943162 Optical amplifier, optical amplifying method and optical transmission system using the optical amplifier |
08/24/1999 | US5943161 Wavelength conversion device employing Bessel beams with parallel polarization |
08/24/1999 | US5943152 Laser wavelength control device |
08/24/1999 | US5943151 Optical telecommunication system |
08/24/1999 | US5943150 Massively parallel processor networks with optical express channels |
08/24/1999 | US5943147 Telecommunication system and method for wavelength-division multiplexing transmissions with a controlled separation of the outgoing channels and capable of determining the optical signal/noise ratio |
08/24/1999 | US5943146 Optical transmission system in which no arrival of a first light signal is notified from a first station to a second station by an alarm light signal multiplexed with a second light signal in wavelength |
08/24/1999 | US5943124 Monitoring of an optical line |
08/24/1999 | CA2163630C Frequency-selective optical switch using polarization rotation |
08/23/1999 | CA2236521A1 Method and apparatus for measuring polarization mode dispersion of optical devices |
08/23/1999 | CA2229219A1 Method and apparatus for measuring polarization mode dispersion of optical devices |
08/19/1999 | WO1999041876A1 System, method and apparatus for secure transmission of confidential information |
08/19/1999 | WO1999041868A1 Optical telecommunications networks |
08/19/1999 | WO1999041858A1 Multiplexer and demultiplexer for single mode optical fiber communication links |
08/19/1999 | WO1999041857A2 Optical telecommunications network |
08/19/1999 | WO1999041856A1 Signal transmission circuit for probe |
08/19/1999 | WO1999041855A2 Optical transmission system with a receiver using full optical clock recovery |
08/19/1999 | WO1999033295A8 System for transporting frequency hopping signals |
08/19/1999 | WO1999031885A3 Reference signal generator for catv return path |
08/19/1999 | WO1999031830A3 Optical receiver including a transimpedance amplifier and a photodetector |
08/19/1999 | DE19808943C1 Optical fibre data transmission method |
08/19/1999 | DE19806584C1 Bidirectional dispersion compensator |
08/19/1999 | DE19805834A1 Optical transmitter-receiver component, e.g. for optical communications |
08/19/1999 | CA2319412A1 Multiplexer and demultiplexer for single mode optical fiber communication links |
08/18/1999 | EP0936773A1 Method and device for resynchronisation of optical signals |
08/18/1999 | EP0936771A2 Optical signal translator unit |
08/18/1999 | EP0936770A2 Wavelenght-division-mutliplexing optical communication apparatus |
08/18/1999 | EP0936769A2 Wavelength-multiplexed optical transmission system |
08/18/1999 | EP0936768A2 Optical wavelength multiplex device with add drop multiplexer |
08/18/1999 | EP0936764A2 Method and apparatus for calibration of digital down converters in a signal processing system |
08/18/1999 | EP0936762A1 Polarized light communication device, transmitter, laser, polarized light communication device for organism, reflected light detector and pulse wave detector |
08/18/1999 | EP0936761A1 Wavelength division multiplexing optical transmission system |
08/18/1999 | EP0936760A2 Optical transmission system and method of surveying the same |
08/18/1999 | EP0936759A2 Optical transmission system, end terminal and optical receiver |
08/18/1999 | CN1226314A Eye mask for measuring of distortion in optical transmission |
08/18/1999 | CA2262248A1 Long reach delivery of broadcast services using broadband optical sources and pre-compensation of dispersion |
08/17/1999 | US5940558 Optical packaging assembly for transmissive devices |
08/17/1999 | US5940551 Optical NxN wavelength crossconnect |
08/17/1999 | US5940549 Optical system and method using optical fibers for storage and retrieval of information |
08/17/1999 | US5940209 Interactive optical fiber amplifier, system and method |
08/17/1999 | US5940208 Switchable fiber optic device for fiber transmission system and components thereof |
08/17/1999 | US5940207 Wavelength converter |
08/17/1999 | US5940205 Channel counter and method of controlling an optical output level with same |
08/17/1999 | US5940199 Interface unit and information processing apparatus having the interface unit |
08/17/1999 | US5940197 Optical add-drop device |
08/17/1999 | CA2118407C Optical clock recovery |
08/16/1999 | CA2255127A1 Method for determining the orbital positions of satellites in leo networks |
08/12/1999 | WO1999040697A1 Virtual star network |
08/12/1999 | WO1999040696A1 Optical links |
08/12/1999 | WO1999040695A1 Optical amplifier, method for controlling excitation light source in optical amplifier, and method for controlling the optical amplifier |
08/12/1999 | WO1999027620A3 Monolithically integrated laser array |
08/12/1999 | DE19801223A1 Method of deriving microwave or millimeter wave subcarrier signals independent of the dispersion of the optical transmission path in an optical multiplex system |
08/12/1999 | CA2319482A1 Optical links |
08/12/1999 | CA2259017A1 Procedure and device for resynchronizing optical signals |
08/11/1999 | EP0935358A2 Bi-directional configurable optical add/drop circuit |
08/11/1999 | EP0935357A2 Terminal apparatus, device for detecting the mismatching of work/protection line bridging function in a synchronous communication network and the method |
08/11/1999 | EP0935356A2 System for monitoring a digital bidirectional optical communication line |
08/11/1999 | EP0935355A2 A system and method for monitoring and characterizing optical links |
08/11/1999 | EP0935320A1 Optical amplifier |
08/11/1999 | EP0935146A2 Dispersion compensating fibers and systems |
08/11/1999 | EP0859967B1 Low profile optical device with multiple mounting configurations |
08/11/1999 | EP0643888B1 Optical communication system |
08/11/1999 | CN1225767A Polarized light communication device, transmitter, laser, polarized light communication device for organism, reflected light detection and pulse wave detector |
08/11/1999 | CN1225766A Telecommunications system simultaneous receiving and modulating optical signal |
08/10/1999 | US5937126 Optically amplifying/repeating transmission system and optical amplifier |