| 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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| 04/20/1994 | EP0593208A1 Optical communication system |
| 04/20/1994 | EP0592874A1 Integrated optical polarization diversity receiver with 3dB coupler and two polarization splitters |
| 04/20/1994 | EP0592873A1 Integrated optical polarization beam-splitter |
| 04/20/1994 | EP0592690A1 Method for identifying optical line |
| 04/20/1994 | CN1024299C Optical amplifier having a single-mode curved active fibre |
| 04/19/1994 | US5305336 Compact optical pulse source |
| 04/19/1994 | US5305134 Optical frequency division multiplexing transmitter and optical frequency division multiplexing transmission apparatus |
| 04/19/1994 | US5305133 Two-way optical communications system |
| 04/19/1994 | US5305132 Optical wavelength communication system and method of using same |
| 04/19/1994 | US5304805 Optical-heterodyne receiver for environmental monitoring |
| 04/19/1994 | US5304793 Light signal receiver with preamplification function and dual polarization means |
| 04/19/1994 | CA1328695C Optical communication system |
| 04/13/1994 | EP0592331A1 Optical switching matrix |
| 04/13/1994 | EP0592330A1 Optical transmission network with switching matrix |
| 04/13/1994 | EP0592316A1 System for transmitting data within a satellite |
| 04/13/1994 | EP0592293A1 Improved laser head |
| 04/13/1994 | EP0591961A1 Fiber optic communication terminal, fiber optic communication system, and its wavelength setting method |
| 04/13/1994 | EP0591866A2 Optical receiver and optical transmission system using the receiver |
| 04/13/1994 | EP0591864A2 Optical semiconductor apparatus and optical communication system using the apparatus |
| 04/13/1994 | EP0591863A1 Optical receiver, optical semiconductor apparatus, and optical communication system utilizing the same |
| 04/13/1994 | EP0266402B1 Method and apparatus for optical rf amplitude equalization |
| 04/13/1994 | EP0264433B1 Method and apparatus for optical rf phase equalization |
| 04/12/1994 | US5303266 Multimedia high speed network |
| 04/12/1994 | US5303229 Optical network unit |
| 04/12/1994 | US5303079 Tunable chirp, lightwave modulator for dispersion compensation |
| 04/12/1994 | US5303077 Optical switch and switching module therefor |
| 04/12/1994 | US5302922 Equalizer for optically transmitted analog information signals |
| 04/12/1994 | US5302911 Preamplifier |
| 04/12/1994 | CA2066611C Error detection for fiber distributed interfaced optic link |
| 04/12/1994 | CA1328483C Digital signal transmission/reception using differential polarization modulation/demodulation |
| 04/07/1994 | DE4333502A1 Optical transmission line monitoring for location of fault - calculating distance from site of reflection in one of several lines through optical junction coupler |
| 04/07/1994 | DE4233581A1 Multiplex frame structure for optical digital communication system - includes frame overhead able to determine position and size of traffic bursts with predetermined number of data channels |
| 04/06/1994 | EP0590901A2 Optic data switch |
| 04/06/1994 | EP0590633A1 Optical fibre dispersion compensation technique for an optical communication system |
| 04/06/1994 | EP0590379A1 Optical transmission device for the transmission of optical signals in wavelength division multiplexing on a plurality of adjacent optical carrier wavelengths |
| 04/06/1994 | EP0590336A1 Optoelectronic element with narrow beam angle |
| 04/06/1994 | EP0296247B1 Optical multiplexer/demultiplexer and use of the same in an optical module |
| 04/06/1994 | CA2107633A1 Optical line monitoring method and an apparatus therefor |
| 04/05/1994 | US5301355 Modulated signal transmitting apparatus |
| 04/05/1994 | US5301185 Ring communication system |
| 04/05/1994 | US5301058 Single sideband optical modulator for lightwave systems |
| 04/05/1994 | US5301057 Subscriber interface for a fiber optic communications terminal |
| 04/05/1994 | US5301056 Optical distribution system |
| 04/05/1994 | US5301054 Transmission of AM-VSB video signals over an optical fiber |
| 04/05/1994 | US5301053 Method for transmission and receipt of coherent light signals |
| 04/05/1994 | US5301052 Communication method and network using optical fibers with frequency multiplexing |
| 04/05/1994 | US5301051 Multi-channel, covert, non-line-of-sight UV communication |
| 04/05/1994 | US5301050 Subscriber loop testing in a fiber-to-the-curb communications network |
| 04/05/1994 | CA1328308C Switched optical network |
| 03/31/1994 | WO1994007340A1 Distributive communications network |
| 03/31/1994 | WO1994007312A1 System for generating feedback signals for regulating optical surveillance circuits (pll) |
| 03/31/1994 | DE4232377A1 IR data transmission procedure of increased reliability - using receiver input circuit which is frequency-selective followed by circuit fading out resonance |
| 03/31/1994 | DE4231856A1 Fault locating and repair in light conductor network - using branch cable with interference point provided with aid of optical clamp following multiple coupler |
| 03/30/1994 | EP0589617A1 All-optical repeater for an optical communication system |
| 03/30/1994 | EP0589390A1 Receiver for phase shift modulated carrier signals |
| 03/30/1994 | EP0444067B1 Communications system |
| 03/30/1994 | CN1084641A Article comprising a rare earth or transition metal doped optical fiber |
| 03/29/1994 | US5299293 Protection arrangement for an optical transmitter/receiver device |
| 03/29/1994 | US5299227 Individual beacon identification system |
| 03/29/1994 | US5299212 Article comprising a wavelength-stabilized semiconductor laser |
| 03/29/1994 | US5299048 Optical amplifier and optical communication system provided with the optical amplifier |
| 03/29/1994 | US5299047 Ternary data communication using multiple polarizations |
| 03/29/1994 | US5299046 Self-sufficient photon-driven component |
| 03/29/1994 | US5299045 Light detecting apparatus having a diffraction grating |
| 03/29/1994 | US5299044 Ranging method for use in TDMA systems on tree-and-branch optical networks |
| 03/29/1994 | CA2015482C Optical system including wavelength tunable semiconductor laser |
| 03/29/1994 | CA1328130C Scrambling in digital communications network |
| 03/23/1994 | EP0588746A1 A method of clocking integrated circuit chips |
| 03/23/1994 | EP0588151A1 Optical heterodyne receiver for the reception of optical DPSK signals |
| 03/23/1994 | EP0588039A1 Improvements in or relating to rotatable joints for communication lines |
| 03/23/1994 | EP0588014A2 Optical bus with optical transceiver modules and method of manufacture |
| 03/23/1994 | EP0588005A1 Pilot light interface for small industrial controls |
| 03/23/1994 | EP0587930A1 Optical switching network for optical communication cells |
| 03/23/1994 | EP0587784A1 Optical communication interface |
| 03/23/1994 | EP0327596B1 Opto-electrical power transmission and control system |
| 03/22/1994 | US5297273 System for optically splitting high-speed digital signals using cascading tree-type configuration wherein the number of successive level of cascading increase by a factor of two |
| 03/22/1994 | US5297229 System for extending communication equipment using flat coaxial cable |
| 03/22/1994 | US5297223 Transmission systems for polarization-independent transmission of signals |
| 03/22/1994 | US5296957 Optical repeater having loop-back function used in transmission system |
| 03/22/1994 | US5296956 Performance monitoring and fault location for optical equipment, systems and networks |
| 03/22/1994 | US5296715 Optically isolated signal coupler with linear response |
| 03/22/1994 | US5296697 Detection circuit for maintaining constant signal transfer characteristics of a light-sensitive detector |
| 03/21/1994 | EP0571609A4 Integrated circuit module with devices interconnected by electromagnetic waves. |
| 03/17/1994 | WO1994006226A1 Flexible network concept |
| 03/17/1994 | WO1994006225A1 System integrating a plurality of electrical items and connector block for use with such a system |
| 03/17/1994 | WO1994006224A2 Sagnac interferometer based secured communication system |
| 03/17/1994 | WO1994006223A1 A noise matching network |
| 03/17/1994 | DE4230601A1 Digital optical signal transmission system |
| 03/17/1994 | DE4042407C2 Optical data transmitter with temp.-independent power control |
| 03/16/1994 | EP0587371A1 Wide-angle, high-speed, free-space optical communications system |
| 03/16/1994 | EP0587066A1 Optical-electronic system for the intercommunication of commands among electrical devices |
| 03/16/1994 | CN2159085Y Portable infrared electrical telecontrol switch |
| 03/16/1994 | CN2159084Y Television audio-frequency infrared transmitting and receiving device |
| 03/16/1994 | CN1083991A Indium-gallic-arsenious photoelectric detector |
| 03/15/1994 | US5295217 Amplifier having an amplifying optical fiber |
| 03/15/1994 | US5295212 System for transmitting signals between optical transceivers |
| 03/15/1994 | US5295209 Spontaneous emission source having high spectral density at a desired wavelength |
| 03/15/1994 | US5295161 Fiber optic amplifier with active elements feedback circuit |
| 03/15/1994 | US5295016 Polarization insensitive amplification device |
| 03/15/1994 | US5295015 Optical amplifying apparatus |