Patents
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)
12/2006
12/28/2006WO2006136997A1 Communication network system
12/28/2006WO2006136811A1 Optical transmission system
12/28/2006WO2006136130A1 Method for the raman amplification of optical signals and transmission system
12/28/2006WO2006136126A1 Dynamic data-rate adaptive signal processing method in a wireless infra-red data transfer system
12/28/2006WO2006136093A1 Method and system for automatically providing and adjusting optical channel concatenation
12/28/2006WO2006136072A1 A method for processing channel failure in automatically switched optical network
12/28/2006WO2006116554A3 System and method for increasing spectral efficiency, capacity and/or dispersion limited reach of modulated signals in communication links
12/28/2006WO2006071565A3 Optical supervisory channel for high span loss optical communication systems
12/28/2006WO2006050067A3 System and method for providing two-way communication of quantum signals, timing signals, and public data
12/28/2006WO2006044165A3 Optical add/drop multiplexer with reconfigurable add wavelength selective switch
12/28/2006WO2006042298A3 Systems and methods for photo-mechanical hearing transduction
12/28/2006WO2005096540A8 Autocalibration for qkd systems
12/28/2006US20060294217 System and method for managing communication links
12/28/2006US20060291870 Signal identification in optical communications networks
12/28/2006US20060291869 Transmitter frequency peaking for optical fiber channels
12/28/2006US20060291868 Optical communications using multiplexed single sideband transmission and heterodyne detection
12/28/2006US20060291866 Attenuation and calibration systems and methods for use with a laser detector in an optical communication system
12/28/2006US20060291865 Optical network
12/28/2006US20060291864 Establishment and maintenance of optical links between optical transceiver nodes in free-space optical communications networks
12/28/2006US20060291863 Method and apparatus for transporting ethernet and radio frequency signals in fiber-optic system
12/28/2006US20060291861 WDM PON with interleaver
12/28/2006US20060291860 Method and system for avoiding amplified spontaneous emission loops in an optical network
12/28/2006US20060291859 Automated optical transport system
12/28/2006US20060291858 Bi-directional compound-WDM fiberoptic system architecture with redundancy protection for transmission of data, voice and video signals
12/28/2006US20060291857 Method and apparatus for testing optical network equipment
12/28/2006US20060291856 Measuring system comprising an intelligent sensor head and having a reduced power consumption for medium-voltage or high-voltage systems or in mining, and method therefor
12/28/2006US20060291781 Configurable dispersion compensation trimmer
12/28/2006DE102005037580B3 Data transmitting method for data/communication network, involves transmitting data of two different types in two concatenated groups and characterizing groups through entry into field pertaining to link capacity adjustment scheme protocol
12/27/2006EP1737150A2 Communication system and timing control method
12/27/2006EP1737149A2 Multi-band hybrid SOA-Raman amplifier for CWDM
12/27/2006EP1737148A2 Laser device for optical packet data transmission in burst mode systems
12/27/2006EP1737147A1 Low speed rate traffic signal transmission method in optical transmission network and device
12/27/2006EP1737146A1 A system and a method for transmission of information
12/27/2006EP1736806A1 Method for determining the performance of a heterogeneous optical transmission system
12/27/2006EP1735927A2 Passive optical network and ultrawide band adapter
12/27/2006EP1735926A2 Out-of-band data communication between network transceivers
12/27/2006EP1735585A1 System and method for checking mechanical pieces, with wireless signal transmission
12/27/2006EP1570626A4 Distributed digital antenna system
12/27/2006EP1559215B1 Receiver for angle-modulated optical signals
12/27/2006EP1522150B1 Information retrieval system based on position of the light source
12/27/2006EP1264424B1 Method and apparatus for interleaved optical single sideband modulation
12/27/2006EP1204227B1 Optical communication system and terminal device
12/27/2006CN2852541Y Communication apparatus for realizing millimeter wave FSK using optical fibre grating
12/27/2006CN2852233Y Optical network card for 650nm plastic optical fibre transmission system
12/27/2006CN2852155Y Large-dynamic micro-mechanical variable optical attenuator
12/27/2006CN2852154Y Universal clamp for detecting optic fiber patch cord
12/27/2006CN1885958A Method for generating signal flow graph
12/27/2006CN1885957A Method for obtaining protection path information
12/27/2006CN1885944A Method and apparatus for carrying out control on CATV service in kilomega bit Ethernet EPON
12/27/2006CN1885756A Light-carried wireless ROF system and its realizing method
12/27/2006CN1885751A Multi-band hybrid SOA-Raman amplifier for CWDM
12/27/2006CN1885750A Far-end RF module and its method for transmitting signal
12/27/2006CN1885749A Novel communication network topology structure for power electronic system
12/27/2006CN1292276C Micro-motor variable light attenuator
12/27/2006CN1292272C Method for constructing feedback delay of optical fiber line and full optical fiber white light interference system made thereof
12/26/2006US7155134 Pulse amplitude modulated transmission scheme for optical channels with soft decision decoding
12/26/2006US7155133 Avalanche photodiode controller circuit for fiber optics transceiver
12/26/2006US7155132 Dynamic distortion control
12/26/2006US7155131 Optical communication devices, light emission devices and optical communication methods
12/26/2006US7155130 NRZ-to-RZ conversion for communication systems
12/26/2006US7155129 Steerable free space optical interconnect apparatus
12/26/2006US7155128 Decorrelation of WDM signals
12/26/2006US7155127 Optical communication system, optical communication unit, and optical transceiving package
12/26/2006US7155124 Loss-less architecture and method for wavelength division multiplexing (WDM) optical networks
12/26/2006US7155123 Method and apparatus for locating faults in an optical network
12/26/2006US7155122 Channel identification in communications networks
12/26/2006US7155121 Method and apparatus for providing controlled impairments to an optical transport system
12/26/2006US7155086 Optical signal processing device using optical gate
12/26/2006US7155084 Bidirectional wavelength cross connect architectures using wavelength routing elements
12/26/2006US7155078 Optical transmission network with transmitter photonic integrated circuit (TxPIC) utilizing an optical service channel (OSC)
12/26/2006US7155071 Device for Mach-Zehnder modulator bias control for duobinary optical transmission and associated system and method
12/26/2006US7154924 Method for configuring a laser operating system
12/26/2006US7154668 Wavelength dependent optical attenuator and variable attenuation profile controller
12/26/2006US7154665 Optical performance monitoring using a semiconductor optical amplifier
12/26/2006US7154663 Dispersion compensating fiber for S-band discrete Raman amplifier
12/26/2006US7154662 Broadband Raman amplifier
12/26/2006US7153034 Method of constructing an optical transmission line and an optical transmission line
12/23/2006CA2550633A1 Multi-band hybrid soa-raman amplifier for cwdm
12/21/2006WO2006135139A1 Optical node unit having multiplexing function in hybrid fiber coaxial cable and method for the same
12/21/2006WO2006092601A3 Acoustooptic modulator
12/21/2006WO2006078364A3 Single sideband optical transmitter
12/21/2006WO2005119942A3 Optical wireless communications using ultra short light pulses and pulse shaping
12/21/2006WO2005109333A3 Quantum optical state converter
12/21/2006US20060285856 Optical transmission system using in-line amplifiers
12/21/2006US20060285855 Clock recovery from an optical signal with polarization impairments
12/21/2006US20060285854 Clock recovery from an optical signal with dispersion impairments
12/21/2006US20060285853 Optical signal generating circuit and optical transmission line
12/21/2006US20060285852 Integrated maximum a posteriori (MAP) and turbo product coding for optical communications systems
12/21/2006US20060285851 Optical transceivers and methods to reduce interference in optical transceivers
12/21/2006US20060285850 Dynamic strain distributed fiber optic sensor
12/21/2006US20060285846 Wdm system
12/21/2006US20060285802 Fiber-optic premises wiring system
12/21/2006US20060285790 Optical bypass method and architecture
12/21/2006US20060285563 Optical apparatus
12/21/2006US20060285552 Method for establishing a subscriber connection and a system utilizing the method
12/21/2006US20060285200 Optical signal-to-noise ratio improving device
12/21/2006US20060285199 Optical amplification system
12/21/2006US20060285198 Raman, pump power control for gain flattening
12/21/2006DE102005028357A1 Raman amplification of optical signals used in wavelength division multiplexing (WDM) transmission system involves rectifying distorted amplification profile of Raman amplification to compensate distortion in Raman-amplified optical signals
12/20/2006EP1734682A1 Receiver for signalling and control information being transmitted using code multiplexing (CDMA)