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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04/03/2002 | CN1343012A Weak-light semiconductor switch with sub-band transition of super-lattice material |
04/03/2002 | CN1082190C Optical fiber protection back plate |
04/02/2002 | USRE37621 Optical communication transmission system |
04/02/2002 | US6366875 Event simulator for telecommunication networks and method for simulating the operation of such a network |
04/02/2002 | US6366729 Limitation of oscillation caused by Raman amplification due to the use of different fibers |
04/02/2002 | US6366728 Composite optical fiber transmission line method |
04/02/2002 | US6366724 Integrated optical transmitter and receiver module |
04/02/2002 | US6366723 Wireless optical communications without electronics |
04/02/2002 | US6366718 Submarine optical gain equalizer, submarine optical transmission line and its installation method |
04/02/2002 | US6366717 Apparatus for distributing optical fiber transmission paths |
04/02/2002 | US6366712 Apparatus and method for combining two separate RF signals on a single optical fiber with monitoring and alarm capabilities |
04/02/2002 | US6366585 Distributed control in a communication system |
04/02/2002 | US6366394 Gain-locked dual stage optical amplifier |
04/02/2002 | US6366393 Fast gain control for optical amplifiers |
04/02/2002 | US6366390 Pulse interleaver |
04/02/2002 | US6366382 Optical decision circuit and use thereof |
04/02/2002 | US6366381 Remote monitoring of an optical transmission system using line monitoring signals |
04/02/2002 | US6366380 Optical transceiver EMI detuning device |
04/02/2002 | US6366379 Remote control device of acousto-optic tunable filter and optical transmission system containing equalizer using acousto-optic tunable filter and optical transmission system containing optical add/drop multiplexer using acousto-optic tunable filter |
04/02/2002 | US6366377 Optical network and switch control method for use in the optical network |
04/02/2002 | US6366376 Optical transmitting device using wavelength division multiplexing to transmit signal lights having frequencies arranged to eliminate effects of four-wave mixing (FWM) |
04/02/2002 | US6366375 Optical-signal transmission apparatus and method, and signal processing apparatus |
04/02/2002 | US6366374 AC performance monitor with no clock recovery |
04/02/2002 | US6366373 Method of intrinsic continuous management data transmission in fiber optic communications |
04/02/2002 | US6366372 Burst mode wavelength manager |
04/02/2002 | US6366348 Optical fiber distortion measuring apparatus and optical fiber distortion measuring method |
04/02/2002 | US6366334 Method and apparatus for removing removal part in liquid crystal display device using jet of compressed air to remove part of the substrate |
04/02/2002 | US6365891 Optical sensor array having multiple rungs between distribution and return buses and having amplifiers in the buses to equalize return signals |
04/02/2002 | US6364541 Method and apparatus for optical reception |
04/02/2002 | CA2255386C Temperature compensated insensitive optical multiplexor/demultiplexor |
04/02/2002 | CA2231819C Bi-directional optical transmission system |
04/02/2002 | CA2229349C Multi-hop telecommunications systems |
04/02/2002 | CA2220603C Optical data transmitting device |
04/02/2002 | CA2165403C Network system for communication with plural channels, node device and concentrator for use therein, and communication method for said network system |
03/28/2002 | WO2002025882A1 Quadrature processed lidar system |
03/28/2002 | WO2002025850A1 Add-drop filter, packet switch, wavelength multiplexing device, communication device, and communication network |
03/28/2002 | WO2002025845A2 Tunable optical dispersion by using two fiber bragg gratings with nonlinear group delays |
03/28/2002 | WO2002025844A1 Method and system for transmitting a signal via a non-linear transmission unit |
03/28/2002 | WO2002025843A1 Method and system for transmitting a signal via a non-linear transmission unit |
03/28/2002 | WO2002025842A2 Universal lighting network method and system |
03/28/2002 | WO2002025841A2 Point to multipoint communication system with optical signal transmission |
03/28/2002 | WO2002025840A1 Long line fiber optic communication system without repeaters or with widely spaced repeaters and with inexpensive amplifiers |
03/28/2002 | WO2002025361A1 Method of differentially connecting photonic devices |
03/28/2002 | WO2002025352A2 Optical switching element having movable optically transmissive microstructure |
03/28/2002 | WO2002015416A3 High-speed communications system |
03/28/2002 | WO2001067141B1 Fiber amplifier with fast transient response and constant gain |
03/28/2002 | WO2001061385A3 Compensating polarization mode dispersion in fiber optic transmission systems |
03/28/2002 | US20020037148 Optical devices employing an optical thresholder |
03/28/2002 | US20020037131 Method for gain equalization, and device and system for use in carrying out the method |
03/28/2002 | US20020037126 Passive polarization stabilizer |
03/28/2002 | US20020037033 Serialised test of parallel optical module |
03/28/2002 | US20020037020 WDM optical transmission apparatus |
03/28/2002 | US20020036814 High-speed communications system |
03/28/2002 | US20020036812 Method and system for transmitting signals with spectrally enriched optical pulses |
03/28/2002 | US20020036811 PMD characterization across multiple optical channels of an optical link |
03/28/2002 | US20020036810 Signal break detecting circuit |
03/28/2002 | US20020036767 Method for monitoring an optical waveguide, as well as monitoring system and monitoring unit for said method |
03/28/2002 | US20020036630 Light-emitting diode driving circuit and optical transmission module using the same |
03/28/2002 | DE10046664A1 Verfahren und Vorrichtung zur störsicheren Übertragung von Daten in einem Bus Method and apparatus for interference-free transmission of data in a bus |
03/28/2002 | CA2422465A1 Tunable optical dispersion by using two fiber bragg gratings with nonlinear group delays |
03/27/2002 | EP1191731A2 Method and apparatus for interference-resistant data transmission on a bus |
03/27/2002 | EP1191728A2 Method for compensating channel quality differences in a WDM system |
03/27/2002 | EP1191726A1 A method of transmitting data symbols in a digital teletransmission network; a digital teletransmission network and network elements therefor |
03/27/2002 | EP1191718A2 Method and device for improving the quality of a modulated optical transmission signal |
03/27/2002 | EP1191717A2 Method and device for wavelength stabilisation of optical WDM signals |
03/27/2002 | EP1191716A2 Method for phase synchronously supplying an optical pulse signal with an electrical data signal |
03/27/2002 | EP1191715A2 Optical wireless network with direct optical beam pointing |
03/27/2002 | EP1191714A1 Method for monitoring an optical waveguide, monitoring system and monitoring unit for said method |
03/27/2002 | EP1191382A2 Stacked micromirror structures |
03/27/2002 | EP1191369A2 Optical fiber, and dispersion compensator using same, optical transmission line using same and optical transmission system using same |
03/27/2002 | EP1190612A1 Method and device for transmitting data between pick-and-place robots and a feeding unit, pick-and-place robot and feeding unit |
03/27/2002 | EP1190509A1 Method and apparatus of utilizing rf/microwave mixing techniques to select a given band of an optical transmission |
03/27/2002 | EP1190406A2 Method and system for programming a universal remote controller |
03/27/2002 | EP0732005B1 Direct entry remote control with channel scan |
03/27/2002 | CN2483898Y Wall type indoor optical-fibre distributing cabinet |
03/27/2002 | CN1342003A Bit rate detecting circuit and calculating method for optical network |
03/27/2002 | CN1341998A Carrier detecting circuit and infrared remote controlled receiver |
03/27/2002 | CN1081858C Optical commuunication system and control method thereof |
03/27/2002 | CN1081857C Apparatus for detecting light signal |
03/26/2002 | US6363202 Management and control of the power levels of wavelength multiplexed optical signals |
03/26/2002 | US6363195 Multimode fiber link dispersion compensator |
03/26/2002 | US6363194 Optical fiber communication system employing Nd doped fiber amplifier for the 1400 nm window |
03/26/2002 | US6363187 Chromatic dispersion compensation |
03/26/2002 | US6363184 Method and apparatus for chromatic dispersion compensation and dispersion slope compensation in wavelength division multiplexed systems utilizing a channel separator and virtually imaged phased arrays |
03/26/2002 | US6363181 Method and apparatus for wavelength-division multiplexing |
03/26/2002 | US6362911 Burst mode optical receiver using two amplifiers having different bandwidth |
03/26/2002 | US6362910 Optical transmitter having temperature compensating function and optical transmission system |
03/26/2002 | US6362909 Line powering shelf for data transmission line |
03/26/2002 | US6362908 Multi-service adaptable optical network unit |
03/26/2002 | US6362907 Apparatus and method for transmitting data between VLSI chips |
03/26/2002 | US6362905 Optical crossconnect apparatus and optical transmission system |
03/26/2002 | US6362903 Use of higher order modulation techniques to transmit information on passbands of a dispersion-limited fiber link |
03/26/2002 | US6362874 Polarization mode dispersion measurement using phase-sensitive sideband detection |
03/26/2002 | CA2353155A1 Fiber grating circuit and a method of measuring grating dispersion |
03/26/2002 | CA2257805C Fault-tolerant optical routing switch |
03/26/2002 | CA2235480C Photo signal amplification transmission system |
03/26/2002 | CA2228227C Dynamic gain control system for optical amplifier and method thereof |
03/26/2002 | CA2068975C Optical amplification system |
03/22/2002 | CA2357193A1 Seralised test of parallel optical module |
03/21/2002 | WO2002023800A1 Phase modulator and phase modulating method |