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)
12/2000
12/05/2000US6157443 Method and system for transporting data for monitoring optical fibers
12/05/2000US6157098 Feed line connection circuit and optical transmission system
12/05/2000US6157022 Bias voltage control circuitry for avalanche photodiode taking account of temperature slope of breakdown voltage of the diode, and method of adjusting the same
12/05/2000US6155690 Optical axis correction device
12/04/2000CA2311157A1 Multiplexer/demultiplexer with three waveguides
12/01/2000CA2308967A1 Wavelength allocation in a ring
11/2000
11/30/2000WO2000072492A1 Polarization-division multiplexing based on power encoding of different polarization channels
11/30/2000WO2000072491A2 Method and system for increasing a number of information channels carried by optical waveguides
11/30/2000WO2000072481A1 Optical communication with pre-compensation for odd order distortion in modulation and transmission
11/30/2000WO2000072480A2 Light amplification apparatus with automatic monitoring and controls
11/30/2000WO2000072479A1 Method and apparatus for optical transmission control using compensating channels
11/30/2000WO2000072451A2 Apparatus and method for reducing impairments from nonlinear fiber effects in 1550 nanometer external modulation links
11/30/2000WO2000025454A9 System and method for integrating a network node
11/30/2000CA2371686A1 Optical transmission systems and amplifier control apparatuses and methods
11/29/2000EP1056235A2 Optical ring system
11/29/2000EP1056232A2 Information communication system and information transfer method
11/29/2000EP1056231A2 Optical reception device, optical transmission system, and optical transmission method
11/29/2000EP1056230A2 Feed forward optical frequency/phase demodulator
11/29/2000EP1056229A2 Optical receiving apparatus and method
11/29/2000EP1056228A2 Linearized optical link using a single Mach-Zender modulator and two optical carriers
11/29/2000EP1056227A1 Multi-point optical link in a cellular radio system for CDMA signals
11/29/2000EP1056226A2 Module for radio transmission over optical fibre
11/29/2000EP1056173A2 Method, device and system for waveform shaping of signal light
11/29/2000EP1055307A1 System, method and apparatus for secure transmission of confidential information
11/29/2000EP1055302A1 Optical telecommunications networks
11/29/2000EP1055299A2 Upgradable, gain flattened fiber amplifiers for wdm applications
11/29/2000EP1055298A2 Optical telecommunications network
11/29/2000EP1055142A1 Bi-directional dispersion compensator
11/29/2000CN1275277A Method and apparatus for operation, protection and restoration of heterogenous optical communication networks
11/29/2000CN1275006A Optical multiplex loop system
11/29/2000CN1275004A Light transmission system and transmitter and receiver thereof
11/29/2000CN1275003A Light-wave tracking method and tracker
11/28/2000US6154859 Abnormality monitor method and abnormality monitor system in a network
11/28/2000US6154589 Method and system for removal of low order optical transmission modes in multimode optical fiber computer network to improve modal bandwidth
11/28/2000US6154588 Dispersion compensation apparatus
11/28/2000US6154583 Optical switch
11/28/2000US6154310 Ultrashort-pulse source with controllable multiple-wavelength output
11/28/2000US6154301 Fiber optic receiver
11/28/2000US6154300 Wireless data communication apparatus using the diffused infrared-ray antenna
11/28/2000US6154299 Modulating retroreflector using multiple quantum well technology
11/28/2000US6154298 Optical communication device
11/28/2000US6154297 Optical transceiver using common optical path for transmission and reception
11/28/2000US6154296 Telecommunications network having shared protect capacity architecture
11/28/2000CA2092003C Universal remote control system
11/23/2000WO2000070804A1 Photonic integrated circuit for optical cdma
11/23/2000WO2000070797A1 LONG DISTANCE, ALL-OPTICAL TELEMETRY FOR FIBER OPTIC SENSOR USING REMOTE OPTICALLY PUMPED EDFAs
11/23/2000WO2000070796A1 Remote control incorporating self test capability
11/23/2000WO2000070743A1 Current mode transmitter
11/23/2000WO2000070425A2 Optical module and method of making
11/23/2000WO2000051268B1 High order spatial mode transmission system
11/23/2000DE19921626A1 Lokales Netzwerk und Verfahren zur Wiedergabe von Audio- und Videodaten in einem solchen Netzwerk Local network and method for playing audio and video data in such a network
11/23/2000CA2371971A1 Optical module and method of making
11/23/2000CA2369926A1 Long distance, all-optical telemetry for fiber optic sensor using remote optically pumped edfas
11/23/2000CA2338042A1 Photonic integrated circuit for optical cdma
11/22/2000EP1054524A2 Optical redundant switching method of optical wavelength multiplex system
11/22/2000EP1054521A1 Method of optical signal transmission with reduced degradation by non-linear effects
11/22/2000EP1054520A1 Free space optical broadband access system
11/22/2000EP1054489A2 An optical amplifier
11/22/2000EP1054273A2 Article utilizing optical waveguides with anomalous dispersion at visible and near infrared wavelengths
11/22/2000EP1053614A1 Dense wdm in the 1310nm band
11/22/2000CN2407514Y Low cost millimeter wave transmitter
11/22/2000CN1274494A Multi-wavelength cross-conect optical network
11/22/2000CN1274487A Optical amplification relay system
11/22/2000CN1274296A System for and method of processing data, and appts. and method of sending and receiving data
11/22/2000CN1274216A Reference wave length providing equipment of performance monitor in wave division complex optical transmitting system
11/22/2000CN1274210A Communication link protection method for chain-type optical fibre network
11/22/2000CN1274209A Wave-length loop system
11/21/2000US6151340 Method and apparatus for locking the wavelength of beacon beam in a free-space laser communications system
11/21/2000US6151160 Broadband Raman pre-amplifier for wavelength division multiplexed optical communication systems
11/21/2000US6151159 Optical amplifier for wavelength multiplex transmission
11/21/2000US6151158 Method and device for optical amplification and system having the device
11/21/2000US6151157 Dynamic optical amplifier
11/21/2000US6151156 Optical fibre amplifier and transmission system with optical fibre-amplifier
11/21/2000US6151150 Method and apparatus for level decision and optical receiver using same
11/21/2000US6151148 Optical amplifier relay transmission system
11/21/2000US6151147 Optical communication apparatus
11/21/2000US6151146 Method and apparatus for shaping a binary signal
11/21/2000US6151145 Two-wavelength WDM Analog CATV transmission with low crosstalk
11/21/2000US6150667 Semiconductor optical modulator
11/21/2000CA2241991C Dynamic reconfiguration of a wireless network using flexible wavelength multiplexing
11/21/2000CA2196364C Method of fast gain control in wdm optical networks
11/21/2000CA2019835C Optical information transmission system, particularly for an aircraft
11/16/2000WO2000069130A1 Local network and method for reproducing audio and video data in a network of this type
11/16/2000WO2000069103A2 Assembly for monitoring the performance of d-wdm multi-frequency systems
11/16/2000WO2000069099A1 Input independent tilt free broadband amplifier with dynamic gain equalisation
11/16/2000WO2000069098A1 Improved c/n performance of bandwidth limited broadband two-way transmission of rf signals
11/16/2000WO2000051269B1 High order spatial mode optical fiber
11/16/2000DE19918630A1 Anordnungen zur Überwachung der Performance von D-WDM Mehrwellenlängensystemen Arrangements for monitoring the performance of D-WDM multi-wavelength systems
11/16/2000DE19910646C1 Transparentes faseroptisches Kommunikationsnetz Transparent optical fiber communication network
11/16/2000CA2371123A1 Improved c/n performance of bandwidth limited broadband two-way transmission of rf signals
11/15/2000EP1052868A2 Free-space/arrayed-waveguide router
11/15/2000EP1052795A2 WDM optical transmission system
11/15/2000EP1052792A2 Optical transmitter
11/15/2000EP1052746A2 Method, device, and system for regeneration and application of optical clock
11/15/2000EP1052745A2 Optical filter
11/15/2000EP1052609A1 Remote control system with reconfigurable remote controller
11/15/2000EP1052494A2 Optical fiber distortion measuring apparatus and optical fiber distortion measuring method
11/15/2000EP1051779A1 Apparatus for ultrashort pulse transportation and delivery
11/15/2000EP1051650A1 Highly non-linear single mode waveguide
11/15/2000CN2406420Y Multi-way light separate plug-in shared device capable of dynamically restructuring
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