| 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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| 10/06/1999 | EP0948152A2 Method and apparatus for compensating the polarisation mode dispersion in an optical transmission line |
| 10/06/1999 | EP0948151A2 Method of setting signal wavelength in optical transmission system |
| 10/06/1999 | EP0948150A2 Light monitoring apparatus with simple structure |
| 10/06/1999 | EP0947864A2 Broadband long-period gratings |
| 10/06/1999 | EP0947064A1 Distributed fiber amplifier for solitons |
| 10/06/1999 | EP0947063A1 Opsistor transmitter data compression circuit |
| 10/06/1999 | EP0947062A1 Apparatus for communication by an electronic device and method for communicating between electronic devices |
| 10/06/1999 | EP0947033A1 Microwave transmitter-receiver |
| 10/06/1999 | EP0946894A1 Beam homogenizer |
| 10/06/1999 | EP0868704B1 Fault detection and modification circuit |
| 10/06/1999 | EP0835567B1 Add/drop multiplexer node |
| 10/06/1999 | CN1231087A 光网络 Optical Network |
| 10/06/1999 | CN1230827A Method for optical fiber communication,and device and system for use in carrying out the method |
| 10/05/1999 | US5963570 Current control for an analog optical link |
| 10/05/1999 | US5963567 Multi-wavelength laser source |
| 10/05/1999 | US5963561 Method and apparatus for bandwidth reuse in a communication network |
| 10/05/1999 | US5963361 Optical amplifier having a variable attenuator controlled based on detected ASE |
| 10/05/1999 | US5963352 Linearization enhanced operation of single-stage and dual-stage electro-optic modulators |
| 10/05/1999 | US5963351 Digital optical receiver with instantaneous Josephson clock recovery circuit |
| 10/05/1999 | US5963350 Optical telecommunications network |
| 10/05/1999 | US5963349 Inexpensive single-fiber bidirectional data link |
| 10/05/1999 | US5963348 Method for assignment of wavelength channels in an optical bus network |
| 10/05/1999 | US5963312 Optical transmission system fault analysis |
| 10/05/1999 | CA2166259C Optical network using multiplexed payload and oam signals |
| 10/05/1999 | CA2155528C Laser with readily exchangeable wavelength selective feedback element |
| 10/05/1999 | CA2088372C Tunable liquid-crystal etalon filter |
| 10/05/1999 | CA2055309C Apparatus for the optical heterodyne reception of signals |
| 09/30/1999 | WO1999049605A1 Programmable optical add/drop multiplexer |
| 09/30/1999 | WO1999049601A1 Wdm transmission repeater, wdm transmission system and wdm transmission method |
| 09/30/1999 | WO1999049599A1 Mehods and apparatus for reducing four-wave mixing |
| 09/30/1999 | WO1999049580A2 NONLINEAR FIBER AMPLIFIERS FOR 1430-1530mm RADIATION |
| 09/30/1999 | WO1999049446A1 Tricolor led display system having audio output |
| 09/30/1999 | WO1999049435A1 CONCURRENT DISPLAY AND DATA COMMUNICATING USING LEDs |
| 09/30/1999 | WO1999049342A1 Transverse spatial mode transformer for optical communication |
| 09/30/1999 | WO1999049341A1 Optical communication system with chromatic dispersion compensation |
| 09/30/1999 | WO1999049340A2 Apparatus and method for compensation of chromatic dispersion in optical fibers |
| 09/30/1999 | WO1999003217A3 Apparatus and method for restoring fiber optic communications network connections |
| 09/30/1999 | DE19809823C1 Coupler arrangement for coupling light from transmitter into multimode optical waveguide |
| 09/30/1999 | CA2325985A1 Optical communication system with chromatic dispersion compensation |
| 09/30/1999 | CA2325883A1 Transverse spatial mode transformer for optical communication |
| 09/30/1999 | CA2325881A1 Apparatus and method for compensation of chromatic dispersion in optical fibers |
| 09/30/1999 | CA2323487A1 Programmable optical add/drop multiplexer |
| 09/30/1999 | CA2317599A1 Methods and apparatus for reducing four-wave mixing |
| 09/29/1999 | EP0946077A2 An optical switching apparatus using wavelength division multiplexing technology |
| 09/29/1999 | EP0946006A1 Method and apparatus for controlling the optical power of an optical wavelength division multiplexed transmission signal |
| 09/29/1999 | EP0946004A2 Line powering shelf for data transmission line |
| 09/29/1999 | EP0944990A1 Cellular system with optical link between mobile telephone switching office and cell sites |
| 09/29/1999 | EP0944974A2 Asynchronous full duplex communications over a single channel |
| 09/29/1999 | EP0944858A1 Multi-stage fiber amplifier with flattened gain curves |
| 09/29/1999 | CN1230314A System with feedback controlled optical amplifiers |
| 09/29/1999 | CN1230313A Fault-tolerant optical routing switch |
| 09/29/1999 | CN1230308A Data transmission equipment |
| 09/29/1999 | CN1230278A Floating optic head with dynamic mirror |
| 09/29/1999 | CN1230041A Optical amplifier with optimal gain excursion for different input powers |
| 09/28/1999 | US5960135 Optical integrated circuit for bidirectional communications and method for producing the same |
| 09/28/1999 | US5959767 Loss-less optical cross-connect |
| 09/28/1999 | US5959766 Optical amplifier device |
| 09/28/1999 | US5959764 Wavelength converter, optically operational device and optical pulse phase detecting circuit |
| 09/28/1999 | US5959755 Lamp apparatus for optical communication |
| 09/28/1999 | US5959754 Optical wireless communication system |
| 09/28/1999 | US5959753 Ultra high bit rate all optical communication system |
| 09/28/1999 | US5959752 Optical transceiver and optical communications network for both of optical fiber transmission and free space transmission |
| 09/28/1999 | US5959751 Universal remote control device |
| 09/28/1999 | US5959750 Method of upgrading transmission capacity by Raman amplification |
| 09/28/1999 | US5959531 Optical interface between receiver and tag response signal analyzer in RFID system for detecting low power resonant tags |
| 09/28/1999 | US5959293 Defective portion detecting device with a horizontal synchronized signal |
| 09/28/1999 | CA2186819C Device for and method of modifying the spectral characteristics of optical signals |
| 09/28/1999 | CA2181362C Interconnected passive optical networks |
| 09/28/1999 | CA2173947C Multiplexing/demultiplexing unit arranged on a multi-surface integrated circuit |
| 09/28/1999 | CA2150728C Data encoded optical pulse generator |
| 09/28/1999 | CA2145913C Apparatus for converting optical bipolar signals to optical unipolar signals |
| 09/26/1999 | CA2266967A1 An optical switching apparatus using wavelength division multiplexing technology |
| 09/23/1999 | WO1999048232A1 Method for monitoring the signal quality in transparent optical networks |
| 09/23/1999 | WO1999048231A1 Wavelength dispersion equalizing method and device |
| 09/23/1999 | WO1999048230A1 Multiple beam communication network with beam selectivity |
| 09/23/1999 | WO1999048229A1 Method for establishing a communication on a standby link in optical transmission facilities |
| 09/23/1999 | WO1999048196A1 Optical receiver using variable negative-capacitance circuit |
| 09/23/1999 | WO1999042874B1 Bi-directional dispersion compensator |
| 09/23/1999 | DE19904565A1 Ultra-short optical pulse generator used e.g. for optical coherence tomography, display, printing or shaping systems |
| 09/23/1999 | DE19812078A1 Signal quality monitoring method for optical transmission path |
| 09/22/1999 | EP0944279A2 Time slot assignment circuit |
| 09/22/1999 | EP0944192A2 Optical communication device |
| 09/22/1999 | EP0944191A1 Method for optical fiber communication, and device and system for use in carrying out the method |
| 09/22/1999 | EP0944190A2 Gain and signal level adjustments of cascaded optical amplifiers |
| 09/22/1999 | EP0944189A2 Optical amplifier |
| 09/22/1999 | EP0944188A2 Optical amplifying apparatus for wavelength division multiplexed signals |
| 09/22/1999 | EP0944187A2 Light emitting element control unit |
| 09/22/1999 | EP0944186A2 Light emitting element driving apparatus |
| 09/22/1999 | EP0944185A1 Space optical transmission apparatus and space optical transmission method |
| 09/22/1999 | EP0944184A2 Optical transmitter-receiver and method of checking the connection of an optical fibre to an optical transmitter-receiver |
| 09/22/1999 | EP0943939A1 Optical add-drop multiplexer having an interferometer structure |
| 09/22/1999 | EP0943192A2 Method and apparatus for saturating an optical amplifier chain to prevent over amplification of a wavelength division multiplexed signal |
| 09/22/1999 | CN2340128Y Direct infrared emitting-receiving mould group |
| 09/21/1999 | US5956440 Optical transmission line for wavelength division multiplexed optical signals |
| 09/21/1999 | US5956439 Optical switching apparatus for use in the construction mode testing of fibers in an optical cable |
| 09/21/1999 | US5956319 Node in an optical signal transmission network, and method of retaining the communication on the occurrence of a failure |
| 09/21/1999 | US5956169 Bidirectional optical burst transmission |
| 09/21/1999 | US5956168 Multi-protocol dual fiber link laser diode controller and method |
| 09/21/1999 | US5956167 Light branching and insertion apparatus and optical transmission system having light branching and insertion apparatus |
| 09/21/1999 | US5956166 Wavelength division multiplexing optical transmission system and wavelength division multiplexing optical transmission method |