| 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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| 02/09/1999 | CA2139957C Multi-channel optical fiber communication system |
| 02/09/1999 | CA2121367C Sagnac interferometer based secure communication system |
| 02/08/1999 | CA2245226A1 Optical receiver |
| 02/08/1999 | CA2209778A1 Integrated optic dispersion compensators |
| 02/05/1999 | CA2241995A1 Method and facility for equalizing an electric signal distorted due to interference in the optical domain |
| 02/04/1999 | WO1999005811A1 Method and device for transmitting data by wavelength division multiplexing in an optical ring network |
| 02/04/1999 | WO1999005805A1 Optical transmission systems using spectral inversion for dispersion and non-linearities compensation |
| 02/04/1999 | WO1999005804A1 Directly modulated semiconductor laser having reduced chirp |
| 02/04/1999 | WO1999005803A2 Laser wavelength control under direct modulation |
| 02/04/1999 | WO1999005802A1 Multiple-line proctection for telecommunications network |
| 02/04/1999 | WO1998052306A3 Optical add/drop device |
| 02/04/1999 | DE19813198A1 Information card for workpiece identification |
| 02/04/1999 | CA2297332A1 Optical transmission systems using spectral inversion for dispersion and non-linearities compensation |
| 02/03/1999 | EP0895369A2 Method and optical transmission system for dispersion compensation in optical transmission lines |
| 02/03/1999 | EP0895368A1 Optical pulse transmission system, optical pulse transmitting method, and optical pulse detecting method |
| 02/03/1999 | EP0895325A2 Temperature dependent constant-current generating circuit and light emitting semiconductor element driving circuit using the same |
| 02/03/1999 | EP0894374A1 Method and apparatus for cordless infrared communication |
| 02/03/1999 | CN1207220A Robust method and apparatus enabling multi-mode wireless optical communication |
| 02/03/1999 | CN1206971A Optical isolator connector |
| 02/02/1999 | US5867534 Optical transmission method with reduced sensitivity to dispersion, transmission device and system for implementing this method |
| 02/02/1999 | US5867485 Network for communicating signals |
| 02/02/1999 | US5867300 Variable optical attenuator which applies a magnetic field to a faraday element to rotate the polarization of a light signal |
| 02/02/1999 | US5867295 Sub-octave bandpass optical remote antenna link modulator and method therefor |
| 02/02/1999 | US5867294 Optical space communication apparatus |
| 02/02/1999 | US5867293 Circuit arrangement for dispersion compensation in optical transmission systems by means of an optical filter |
| 02/02/1999 | US5867292 Infrared digital and analog communication system |
| 02/02/1999 | US5867291 Programmable wavelength router |
| 02/02/1999 | US5867289 Fault detection for all-optical add-drop multiplexer |
| 02/02/1999 | US5866898 Time domain multiplexed amplified sensor array with improved signal to noise ratios |
| 02/02/1999 | CA2168579C Optical fibre communications system |
| 02/02/1999 | CA2123145C High capacity optical fiber network |
| 02/02/1999 | CA2091821C Optical communications system employing fiber-optic amplifiers and control of the transmitter wavelength |
| 02/02/1999 | CA2060231C Embedded control network |
| 02/02/1999 | CA2048597C Optical interconnection network |
| 01/28/1999 | WO1999004526A1 Method for transmitting overhead information for wavelength division multiplex networks for fibre-optic information transmission |
| 01/28/1999 | WO1999004309A1 Device for transmitting optical signals between two dynamically decoupled systems |
| 01/28/1999 | DE19727632A1 Optical data transmission component |
| 01/28/1999 | CA2211648A1 Wavelength dependent crossover system for bi-directional transmission |
| 01/28/1999 | CA2211639A1 Optical circulator |
| 01/27/1999 | EP0893932A1 System and method for transmitting information for amphibious traveling vehicle and system for controlling operation of the vehicle |
| 01/27/1999 | EP0893899A2 Burst-mode optical receiver and correction of dc offset |
| 01/27/1999 | EP0893016A1 Add/drop multiplexer |
| 01/27/1999 | EP0892701A1 Electric shaving system |
| 01/27/1999 | CN2305811Y Infra-red remote controller |
| 01/27/1999 | CN1206279A Contact-less information exchanger |
| 01/26/1999 | US5864672 Communication network |
| 01/26/1999 | US5864625 Methods and apparatus for secure optical communications links |
| 01/26/1999 | US5864591 Apparatus and method for suppression of feedback in a communications receiver |
| 01/26/1999 | US5864423 Optical amplifier, method of controlling the output light from the optical amplifier, optical transmission system and method of controlling an optical transmission path |
| 01/26/1999 | US5864422 Light amplifier device capable of suppressing light surge |
| 01/26/1999 | US5864421 Optical frequency shifter and optical soliton-like return-to-zero pulse transmission system using optical frequency shifter |
| 01/26/1999 | US5864415 Fiber optic network with wavelength-division-multiplexed transmission to customer premises |
| 01/26/1999 | US5864413 Passive optical network for dense WDM downstream data transmission and upstream data transmission |
| 01/21/1999 | WO1999003226A1 Method and apparatus for controlling communications in a passive optical network |
| 01/21/1999 | WO1999003219A1 Wake-up circuit for an electronic apparatus |
| 01/21/1999 | WO1999003218A1 Data reception circuit for infrared signals |
| 01/21/1999 | WO1999003217A2 Apparatus and method for restoring fiber optic communications network connections |
| 01/21/1999 | WO1998046038A3 Method for transmitting additional data signals and a useful data signal by means of optical links |
| 01/21/1999 | DE19740743C1 Optical amplifier with gain control |
| 01/21/1999 | DE19728786C1 Transmission method for pulse-width modulated analog signal |
| 01/21/1999 | CA2295854A1 Data reception circuit for infrared signals |
| 01/21/1999 | CA2295564A1 Wake-up circuit for an electronic apparatus |
| 01/21/1999 | CA2265781A1 Apparatus and method for restoring fiber optic communications network connections |
| 01/20/1999 | EP0892524A2 Communication apparatus, network system using communication apparatus and control method used in network system |
| 01/20/1999 | EP0892512A2 Circuit and channel assignment plan for optical transmissions |
| 01/20/1999 | EP0892511A2 Optical module for receiving optical signal from optical fiber |
| 01/20/1999 | EP0892510A1 Low voltage link for transmission of on/off commands |
| 01/20/1999 | EP0835542B1 Wavelength converter |
| 01/20/1999 | EP0721709B1 Transmission station, intermediate repeater and receiver station for a fibre-optic communications-transmission system |
| 01/20/1999 | CN1205821A Modem loop current detect system to detect off-hook condition in extension telephone |
| 01/20/1999 | CN1205582A Optical crossconnect apparatus and optical transmission system |
| 01/20/1999 | CN1205581A Telephone system of utilizing infrared tech. and its control method |
| 01/19/1999 | US5862287 Apparatus and method for delivery of dispersion compensated ultrashort optical pulses with high peak power |
| 01/19/1999 | US5862279 Optical device with phased array |
| 01/19/1999 | US5862165 Variable wavelength light source using a laser, wavelength control method, optical communication system and optical communication method |
| 01/19/1999 | US5861980 Optical spectrum analyzer and method for controlling output of optical amplifier |
| 01/19/1999 | US5861975 Wavelength stability circuit |
| 01/19/1999 | US5861974 Transmission device connected to optical transmission line |
| 01/19/1999 | US5861972 Optical multiplex transmission equipment and method |
| 01/19/1999 | US5861971 Inline modulator device for an optical transmission system |
| 01/19/1999 | US5861970 Dispersion compensation in an optical communications system |
| 01/19/1999 | US5861969 Infrared signal transmitting apparatus |
| 01/19/1999 | US5861968 Infrared transceiver for an application interface card |
| 01/19/1999 | US5861967 Wavelength multiplexed light transfer unit and wavelength multiplexed light transfer system |
| 01/19/1999 | US5861966 Broad band optical fiber telecommunications network |
| 01/19/1999 | US5861965 Optical communication system employing spectrally sliced optical source |
| 01/19/1999 | CA2123414C Fibre optic telephone loop network |
| 01/19/1999 | CA2089995C Method and apparatus for optical transceiver testing |
| 01/19/1999 | CA2057617C Communications signal |
| 01/19/1999 | CA2034915C Optical fiber telecommunication line with separate, optically transmitted service channels |
| 01/17/1999 | CA2242600A1 Low-voltage link for transmitting on-off commands |
| 01/14/1999 | WO1999001952A1 Device for the wireless transmission of data |
| 01/14/1999 | WO1999001850A2 Signal transmitter |
| 01/13/1999 | EP0890854A2 Integrated optical time delay unit |
| 01/13/1999 | EP0890230A1 Chromatic dispersion compensating node |
| 01/13/1999 | EP0890229A1 Method of determining optical amplifier failures |
| 01/13/1999 | EP0692165B1 Generation of optical signals with rf components |
| 01/13/1999 | EP0552316B1 Circuit for reducing intermodulation on the use of semiconductor lasers for optical information transmission |
| 01/13/1999 | CN1204776A Optical fiber amplifier for achieving high gain of small signal |
| 01/13/1999 | CN1041658C Fiber amplifier having efficient pump power utilization |