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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06/25/1997 | CN1152984A Optical telecommunications network |
06/25/1997 | CN1152983A Processing for optical data packet |
06/25/1997 | CN1152980A Generation of radio frequency modulated optical radiation |
06/24/1997 | US5642448 Integrable fiberoptic coupler and resulting devices and systems |
06/24/1997 | US5642447 Fiber optic network transmission system with integrated optical isolator couplers |
06/24/1997 | US5642405 Cellular communications system with centralized base stations and distributed antenna units |
06/24/1997 | US5642219 Optical repeater |
06/24/1997 | US5642217 Apparatus for repowering and monitoring serial links |
06/24/1997 | US5642215 Optical transmission system |
06/22/1997 | CA2192635A1 Modulated and depolarized optical signal transmission system |
06/19/1997 | WO1997022190A1 Meshed optical network |
06/19/1997 | WO1997022023A1 Formation of a refractive index grating |
06/19/1997 | CA2239730A1 Formation of a refractive index grating |
06/19/1997 | CA2193249A1 Encryption device and device for decrypting informations carried by asynchronous transfer mode cells |
06/18/1997 | EP0779761A2 Optical switching unit and control method for same |
06/18/1997 | EP0779721A2 Channel insertion in a WDM system |
06/18/1997 | EP0779719A2 Polarization diversity receiver systems |
06/18/1997 | EP0779718A2 Optical communication network and method for optically detecting a fault |
06/18/1997 | EP0672284B1 Measuring process and device with analog optical signal transmission |
06/18/1997 | CN1152381A Device for transmitting and receiving rotating light signals |
06/18/1997 | CN1152224A Chirped-pulse multiple wavelength telecommunications system |
06/18/1997 | CN1152223A Remote IR receiver with strong light and electromagnetic immunity |
06/17/1997 | US5640262 Control system and connecting device |
06/17/1997 | US5640160 Pulse modulation method |
06/17/1997 | CA2118974C System for restoring the transmission quality in a link including amplifiers in cases of failure in one or several amplifiers |
06/16/1997 | CA2192922A1 Method of and apparatus for data communications between portable information terminals |
06/12/1997 | WO1997021288A1 Full duplex optical modem for broadband access network |
06/12/1997 | WO1997021261A1 Eyesafe transmission of hazardous laser beams |
06/12/1997 | DE19649218A1 Optical switch with shutter slid between light emitter and fibre end |
06/11/1997 | EP0778682A2 Optical fiber amplifier repeating system |
06/11/1997 | EP0778681A2 Linearisation circuit device |
06/11/1997 | EP0778479A2 Optical ADD/DROP multiplexer device |
06/05/1997 | WO1997020403A1 Dispersion management system for soliton optical transmission system |
06/05/1997 | WO1997020399A1 Transmission system for a non linear transmission medium |
06/05/1997 | WO1997015969A3 Optical transmission link capable of high temperature operation without cooling with an optical receiver module having temperature independent sensitivity performance and optical transmitter module with laser diode source |
06/05/1997 | DE19543385C1 Mobile optical signal transmitter |
06/04/1997 | EP0777353A2 WDM token bus network |
06/04/1997 | EP0777347A2 Optical transmission system and optical repeater |
06/04/1997 | EP0777346A2 Optical amplifier and optical communication system employing the same |
06/04/1997 | EP0777345A2 Surveillance method of optical amplifier-repeater transmission system |
06/04/1997 | EP0776558A1 Quantum cryptography |
06/04/1997 | EP0776554A1 Optical emitting head including a laser and a modulator |
06/04/1997 | EP0776553A1 An infrared communication device for multistandard operations |
06/04/1997 | EP0776552A1 Fault location in optical communication systems |
06/04/1997 | EP0776491A1 Polarization independent optical directional coupler wavelength tunable filters/receivers |
06/04/1997 | EP0653129B1 Free space optical communication system |
06/04/1997 | EP0653076B1 Optical radiation devices |
06/04/1997 | CN2255699Y Automatic cutting controller for laser |
06/04/1997 | CN1151229A In-line predistorted for linearization of electronic and optical signals |
06/03/1997 | US5636301 Optical waveguide amplifiers |
06/03/1997 | US5636264 Radio telephone system which utilizes an infrared signal communication link |
06/03/1997 | US5636053 Fiberoptic amplifier system with noise figure reduction |
06/03/1997 | US5636048 Equalizing amplifier, receiver using the same and preamplifier |
06/03/1997 | US5636047 Optical interconnection system |
06/03/1997 | US5636046 Optical dispersion compensation method using transmissible band determined from synergetic effect of self phase modulation and group velocity dispersion |
06/03/1997 | US5636045 Photonic switching method and photonic switch utilizing same |
06/03/1997 | US5635915 Transmission system |
05/29/1997 | WO1997019529A1 Device for the optical transmission of signals |
05/29/1997 | WO1997019528A1 Optical transmitter |
05/29/1997 | WO1997019527A1 Submillimeter indirect heterodyne receiver and mixer element |
05/29/1997 | WO1997019526A1 Improvements in transmission of optical signals |
05/29/1997 | CA2237661A1 Submillimeter indirect heterodyne receiver and mixer element |
05/28/1997 | EP0776103A2 Optical communication system using optical phase conjugation to suppress waveform distortion caused by chromatic dispersion and optical kerr effect |
05/28/1997 | EP0557341B1 Optical clock recovery |
05/28/1997 | DE19543550A1 Optical communications network for use with optical sub-sea cables |
05/27/1997 | US5633961 Switched optical interconnect |
05/27/1997 | US5633749 Optical fiber amplifier having light surge preventing function |
05/27/1997 | US5633743 Optical communications system using tunable tandem Fabry-Perot etalon |
05/27/1997 | US5633742 Optical data communication and location apparatus, system and method and transmitters and receivers for use therewith |
05/27/1997 | US5633741 Multichannel optical fiber communications |
05/22/1997 | WO1997018645A1 Multi-tone phase modulation for light wave communication system |
05/21/1997 | EP0774879A1 System for monitoring and controlling a point to multipoint access network |
05/21/1997 | EP0774844A1 Method and device for optically recovering the synchronism of an optical digital signal |
05/21/1997 | EP0774810A2 Phase conjugate wave generating device, wavelength converting method, optical dispersion compensation method and multi-wavelength light generating device |
05/21/1997 | EP0774676A2 Positive dispersion optical waveguide |
05/21/1997 | CN1150514A Access network |
05/20/1997 | USRE35516 Adiabatic reflection Y-coupler apparatus |
05/20/1997 | US5631916 Apparatus and method for optically transmitting electrical signals in the 20-300 gigahertz frequency range |
05/20/1997 | US5631760 Apparatus for the optical heterodyne reception of signals |
05/20/1997 | US5631759 Automated system, and corresponding method, for measuring receiver pulse width distortion of electro-optic modules |
05/20/1997 | US5631758 Chirped-pulse multiple wavelength telecommunications system |
05/18/1997 | CA2188498A1 Positive dispersion optical waveguide |
05/15/1997 | WO1997017780A2 Optical frequency multiplexing system |
05/15/1997 | WO1997017773A1 Non-linearity estimation method and device |
05/15/1997 | WO1997017627A1 Low profile optical device with multiple mounting configurations |
05/15/1997 | DE19528597A1 Optical information transmission system |
05/14/1997 | EP0773641A2 Optical communications system using tunable tandem Fabry-Perot etalon |
05/14/1997 | EP0773640A2 Optical communication system using tandem Fabry-Perot etalon for wavelength selection |
05/14/1997 | EP0772924A1 Generation of radio frequency modulated optical radiation |
05/13/1997 | US5629994 Optical WDM coupling systems |
05/13/1997 | US5629983 Parallel transmission through plurality of optical fibers |
05/13/1997 | US5629959 Wideband square-law detector having a triangular frequency characteristic as well as a transmission system and a receiver including such a detector |
05/13/1997 | US5629795 Optical amplifying-repeating transmission system |
05/13/1997 | US5629789 Passive optical repeater bypass for optical fiber systems |
05/13/1997 | CA2093991C Light pulse source and light soliton transmission system equipped with said source |
05/09/1997 | WO1997016679A1 Vertical cavity surface emitting laser arrays for illumination |
05/07/1997 | EP0772314A2 SCM optical communication system |
05/07/1997 | EP0772313A2 SCM optical communication system |
05/07/1997 | EP0772312A2 SCM optical communication system |
05/07/1997 | EP0772308A2 Light receiving device |