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)
08/1999
08/10/1999US5937116 Optical transmission system and method using wavelength division multiplex
08/10/1999US5936754 Transmission of CDMA signals over an analog optical link
08/10/1999US5936753 Optical network system
08/10/1999US5936752 WDM source for access applications
08/10/1999US5935209 System and method for managing fiber-to-the-curb network elements
08/10/1999US5934971 Fiber optic deadman control
08/10/1999CA2259671A1 Method and apparatus for calibration of digital down converters in a signal processing system
08/06/1999CA2261257A1 Optical amplifier for constantly adjusting per-channel output power and method thereof
08/06/1999CA2260687A1 Bi-directional configurable optical add/drop circuit
08/05/1999WO1999039483A1 3r regenerator for different bit rates
08/05/1999WO1999039470A1 Connection set-up and path assignment in wavelength division multiplexed ring networks
08/05/1999WO1999039464A2 A system and a method for information security in optical communication networks
08/05/1999WO1999039406A1 Apparatus for ultrashort pulse transportation and delivery
08/05/1999WO1999030443A3 Radio transceiver for data transmission using nonlinear optical medium for modulation of light
08/05/1999WO1999021316A9 Remodulators for wdm optical communication systems
08/04/1999EP0933964A2 Optical network switching system
08/04/1999EP0933910A2 Handy phone with an infrared communication capability
08/04/1999EP0933895A1 Method for detecting one or more free channels in an optical time multiplexed signal, a device for implementation and an application of the device
08/04/1999EP0933894A1 Method and system for controlling optical amplification in wavelength division multiplex optical transmission
08/04/1999EP0933888A2 Optical gain equalization unit, optical gain equalization method, and optical fiber transmission line
08/04/1999EP0933887A2 Photocurrent monitor circuit and optical receiver
08/04/1999EP0933886A2 A differential charge and dump optoelectronic receiver
08/04/1999EP0933844A1 Optical amplifier evaluation method and optical amplifier evaluation device
08/04/1999EP0933660A1 Optical transmitting-receiving waveguide module
08/04/1999EP0933005A1 Contention free global interconnection
08/04/1999EP0932947A1 Suppression of stimulated brillouin scattering in optical transmission system
08/03/1999US5933553 Arrangement for transmitting and receiving optical signals
08/03/1999US5933552 Optical filter, manufacturing method thereof and optical amplifier equipped with said optical filter
08/03/1999US5933270 For an optical transmission line
08/03/1999US5933265 Optical receiver module for an optical communication transmission system
08/03/1999US5933264 Optical receiver, a tuner, and an optical network
08/03/1999US5933263 Self-powered datalink activation system
08/03/1999US5933262 Optical amplification device and wavelength multiplexed light transfer apparatus using the same
08/03/1999US5933258 Optical communication system
08/03/1999US5933227 Testing method for optical fiber
08/03/1999CA2141905C Analogue photodiode module
08/03/1999CA2102017C A compact-size optical amplifier
08/02/1999CA2258970A1 Process for detecting one or more free channels in an optical time division multiplex, an implementation device and an application of the device
07/1999
07/29/1999WO1999038279A1 Method for adjusting the power level of an infrared signal
07/29/1999WO1999029056A3 Optical receiver
07/29/1999WO1999027662A3 Variable gain optical communication
07/29/1999WO1999013588A3 Optimizing launch points for dispersion-managed solitons
07/29/1999DE19801372A1 Information input device for display window or computer screen
07/28/1999EP0932268A2 FM signal optical transmission apparatus and FM signal optical reception apparatus
07/28/1999EP0932228A2 Split-pumped dual stage optical fiber amplifier
07/28/1999EP0932060A2 Selectable wavelength channel filter for optical WDM systems
07/28/1999EP0931393A1 Dynamically reconfigurable optical add-drop multiplexers for wdm optical communication systems
07/28/1999EP0931392A1 Apparatus and method for restoring fiber optic communications network connections
07/28/1999EP0931384A1 Data transmission equipment
07/28/1999EP0931372A1 Optical communications system
07/28/1999EP0931370A1 Lossless optical transmission system architecture
07/28/1999EP0931357A1 Opto-electronic module for bi-directional optical data transmision
07/28/1999EP0931276A1 Optical apparatus which uses a virtually imaged phased array to produce chromatic dispersion
07/28/1999EP0756694B1 System for detecting linear dimensions and method for testing the system operability
07/28/1999CN1224286A Double mode handfree phone for mobile communication terminal
07/27/1999US5930421 Optical fiber and method for coupling optical fibers
07/27/1999US5930414 In an optical transmission fiber
07/27/1999US5930111 Overhead installed communication equipment
07/27/1999US5930045 Optical apparatus which uses a virtually imaged phased array to produce chromatic dispersion
07/27/1999US5930024 Suppression of stimulated Brillouin scattering in optical transmission system
07/27/1999US5930018 Method and apparatus for controlling communications in a passive optical network
07/27/1999US5930017 Method and system for maintaining an optical path
07/27/1999US5930015 Optical access system
07/27/1999US5929771 Portable wireless communication device
07/27/1999US5929759 Proximity detector with rapid reception amplification
07/27/1999US5929425 Portable wireless optical scanner with user interface mounted on charger
07/23/1999CA2244070A1 Device for optical free space transmission systems
07/22/1999WO1999037050A1 Communications system with star/ring topology
07/22/1999WO1999037049A1 Self-healing optical network
07/22/1999WO1999037043A1 System and method for increasing the robustness of an optical ring network
07/22/1999WO1999037042A1 System and method for sharing a spare channel among two or more optical ring networks
07/22/1999WO1999036816A1 Highly non-linear single mode waveguide
07/22/1999WO1999036519A1 HUMAN SUPPRESSOR tRNA OLIGONUCLEOTIDES AND METHODS OF USE FOR SAME
07/22/1999WO1999030195A3 Integrated transmitting-receiving circuit for an optical duplex system
07/22/1999WO1999028768A3 Optical receiver
07/22/1999CA2318077A1 System and method for increasing the robustness of an optical ring network
07/22/1999CA2318046A1 Self-healing optical network
07/22/1999CA2318044A1 System and method for sharing a spare channel among two or more optical ring networks
07/22/1999CA2313086A1 Highly non-linear single mode waveguide
07/21/1999EP0930799A1 A reconfigurable branching unit for a submarine communications system
07/21/1999EP0930733A2 Upgrading a power-splitting passive optical network using optical filtering
07/21/1999EP0930732A1 Elimination of optical power limitation due to Raman effect in optical fibre links
07/21/1999EP0930731A1 Optical amplifier with optimal gain charateristics for different input power
07/21/1999EP0930730A2 An optical repeater
07/21/1999EP0930729A2 Optical surge suppressing apparatus
07/21/1999EP0930728A2 Digital optical transmission apparatus and method for performing ASK modulation to generate base band component with constant DC level
07/21/1999EP0930710A2 Clock signal detection circuit
07/21/1999EP0930678A2 Optical transmitter
07/21/1999EP0930677A2 Direct optical amplifier
07/21/1999EP0930485A2 Device to detect or to create optical signals
07/21/1999EP0929952A1 Production of an optical frequency reference signal
07/21/1999EP0929951A1 Circuit arrangement for the operation of wavelength division multiplexing
07/21/1999EP0929894A1 Optical head using micro-machined elements
07/21/1999EP0801854A4 Fiber-optic interface system
07/21/1999CN1223734A Communication system for transmitting accounting instructions
07/21/1999CN1223507A Fiber-optic transceiver for long distance data communications
07/20/1999US5926590 Power equalizer in a multiple wavelength bidirectional lightwave amplifier
07/20/1999US5926497 Diffraction grating with alternately-arranged different regions, optical semiconductor device with the diffraction grating, and apparatus and optical communication system using the same
07/20/1999US5926492 Laser pulse oscillator
07/20/1999US5926308 High-speed optical modulator module
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