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)
04/1998
04/15/1998CN1178926A Signal treating system
04/14/1998US5740290 Optical filtering
04/14/1998US5740289 Optical arrangement for amplifying WDM signals
04/14/1998US5740169 Subscriber interface for a fiber optic communications terminal
04/14/1998US5739943 Polarization control unit
04/14/1998US5739938 Optically-powered directly-modulated fiber optic link
04/14/1998US5739937 Optical unit for restoring a pulse pattern, receiver suitable for use in a transmission system comprising such a unit
04/14/1998US5739936 Electro-optical circuit for signal transmission
04/14/1998US5739934 Wavelength division multiplexing lightwave transmission system
04/14/1998US5739932 Optical transmission system constructing method and system
04/14/1998US5739710 Dynamic/static signal converting circuit and method for use in a lamp driving device
04/14/1998CA2072540C Equalizer for optically transmitted information signals
04/14/1998CA2063666C Optical signal transmission system, particularly optical cable television system, with monitoring and service-channel facilities
04/09/1998WO1998015074A1 Production of an optical frequency reference signal
04/09/1998WO1998015073A1 Fiber optic mode scrambler
04/09/1998WO1998015017A1 Opto-electronic module for bi-directional optical data transmision
04/09/1998WO1998015015A1 Photodetecting chip and its use
04/09/1998WO1998014806A1 Dispersion compensation fibre
04/09/1998CA2267442A1 Dispersion compensation fibre
04/09/1998CA2267323A1 Production of an optical frequency reference signal
04/08/1998EP0835005A2 Optical repeater and optical transmission system
04/08/1998EP0835003A1 Channel add-drop device over a multichannel bidirectional optical link
04/08/1998EP0835002A1 Optical network
04/08/1998EP0835001A1 Channel allocation method in data transmission in the optical frequency range
04/08/1998EP0835000A1 Method for transmitting a low-rate additional channel in high-rate coherent optical transmission systems
04/08/1998EP0834972A2 Semiconductor optical device with active layer of quantum well structure, use method thereof, light source apparatus including the same, and optical communication system using the same
04/08/1998EP0834970A2 Multi-layer mirror of compound semiconductors including nitrogen and surface light-emitting device with the same
04/08/1998EP0834815A2 Data communication method, electronic apparatus and physical-layer-control integrated circuit
04/08/1998EP0834094A1 Solitons in dispersion flattened waveguide
04/08/1998EP0723676B1 Optical switching device
04/08/1998EP0705509A4 An optical communications system for transmitting information signals having different wavelengths over a same optical fiber
04/08/1998CN1178418A IrDA data link with VCSEL light source
04/07/1998US5737690 Method and apparatus for orienting a pluridirectional wireless interface
04/07/1998US5737460 Applications of solitons in transmission systems employing high launch powers
04/07/1998US5737459 Loss interferometric power combiner comprising a feedback circuit
04/07/1998US5737373 Control method and apparatus for suppressing jitter
04/07/1998US5737118 Optical amplifying apparatus
04/07/1998US5737111 Optical receiving apparatus
04/07/1998US5737110 Optical communication system using dark soliton lightwave
04/07/1998US5737109 Thermal down-mixing in diode laser transmitters to suppress stimulated brillouin scattering
04/07/1998US5737108 Link pulse translation circuit
04/07/1998US5737107 Information transmitting apparatus
04/07/1998US5737105 For amplifying optical signals
04/07/1998US5737103 Reducing crosstalk in optical cross-connects by appropriate configuration unused switch elements
04/07/1998US5736782 Chip card with integrated IR transceiver
04/07/1998US5736730 Device for receiving electromagnetic signals with an energy correction means
04/07/1998CA2028714C Optical fiber and amplifier with a samarium-erbium doped active fiber
04/05/1998CA2208968A1 Channel allocation method in connection with data transmissions in the optical frequency range
04/04/1998CA2217263A1 Optical repeater and optical transmission system
04/03/1998CA2215128A1 Device for inserting/extracting channels on a two-way multichannel optical link
04/02/1998WO1998013959A1 Optical transmission module and optical transmission system
04/02/1998WO1998013958A1 Module and system for optical transmission
04/02/1998WO1998013957A1 A method and an apparatus for amplitude equalization of a plurality of optical signals
04/02/1998WO1998013700A1 Automatic fault location in cabling systems
04/02/1998DE19641577A1 Dispersionskompensationsfaser Dispersion compensation fiber
04/01/1998EP0833467A2 Data communication method, especially for vehicles
04/01/1998EP0833189A2 Wavelength converter for high bit rate
04/01/1998EP0833176A1 Optical waveguide module having mainline waveguide and transmission equipment
04/01/1998EP0833175A2 Opto-electronic module for bidirectional optical transmission
04/01/1998CN1178047A Optical amplifier arrangement
04/01/1998CN1177870A System for reducing cross-saturation in optical amplifying network and method thereof
03/1998
03/31/1998US5734493 Optical frequency conversion device
03/31/1998US5734486 Optical packet switching system
03/31/1998US5734341 Encoding digital data
03/31/1998US5734328 Apparatus for switching communication method based on detected communication distance
03/31/1998US5734300 Optical receiver preamplifier dynamic range enhancing circuit and method
03/31/1998CA2186817A1 Optical communication system utilizing photonic patterns
03/28/1998CA2215145A1 Wavelength converter suitable for high bit rates
03/26/1998WO1998012733A1 Photonic heterodyning having an image component separator
03/26/1998WO1997050199A3 Dual rate, burst mode, radiation hardened, optical transceiver
03/26/1998CA2255945A1 Photonic heterodyning having an image component separator
03/25/1998EP0831605A2 Optical receiver with wide dynamic range
03/25/1998EP0831604A1 Method and system for controlling the position of two lightwaves in heterodyne coherent reception
03/25/1998EP0830743A1 Modular unit headset
03/25/1998CN1177240A 光通讯系统 Optical Communication Systems
03/24/1998US5731891 Optical amplifier
03/24/1998US5731871 Light quantity measuring device that can accurately measure quantity regardless of polarization of measured light
03/24/1998US5731869 Optical fiber testing method for measuring connection location and connection loss
03/24/1998US5731664 Electrical switched load relocation apparatus
03/24/1998US5731585 Laser communication system
03/19/1998WO1998011682A1 System with optical amplifier
03/19/1998WO1998011681A1 System with feedback controlled optical amplifiers
03/19/1998WO1998011680A1 Infrared energy transmissive member and radiation receiver
03/19/1998WO1997050185A3 Method and system for equalizing PMD using incremental delay switching
03/19/1998DE19637417A1 Optical data bus operating system esp. for motor vehicle
03/19/1998DE19637229A1 Optical heterodyne transmission systems transmitter
03/19/1998DE19634487A1 Transmitter unit with receiver unit and transceiver for radio frequency signal
03/18/1998EP0830000A2 Apparatus and method for connecting portable phone to portable image capture device
03/18/1998EP0829981A2 System and method for mitigating cross-saturation in optically amplified networks
03/18/1998EP0829980A2 Optical communications system
03/18/1998EP0829979A2 Multi-wavelength light source and discrete-wavelength-variable light source
03/18/1998EP0829978A2 Digital optical transmitter and digital optical receiver making communication by superimposing subdata on modulated waveform of main data
03/18/1998EP0829976A2 Broad linewidth lasers for optical fiber communication systems
03/18/1998EP0829975A2 Apparatus and methods for positioning optical fibers and other resilient members
03/18/1998EP0829935A2 Optical freqency stabilizer
03/18/1998EP0829741A2 Optical waveguide system comprising a mode coupling grating and a mode discriminating coupler
03/18/1998EP0689741A4 A method and apparatus for inducing a temporary localised transmission loss in a telecommunications cable
03/18/1998CN2276690Y Remote colour TV. combined remote control disconnector
03/18/1998CN1176550A Line arrangement of digital communication
03/18/1998CN1176546A Optical communication system employing spectrally sliced optical source
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