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)
10/2006
10/24/2006US7127181 System for mitigating the effects of fiber dispersion by separate detection of two transmitted sidebands
10/24/2006US7127180 System, device, and method for supporting cut-through paths in an optical communication system
10/24/2006US7127179 Polarization encoder device
10/24/2006US7127178 Optical communication device
10/24/2006US7127177 Integrated post-amplifier and laser driver assembly with digital control interface
10/24/2006US7127176 Optical transmission system of radio signal over optical fiber link
10/24/2006US7127175 Method and apparatus for multiplexing in a wireless communication infrastructure
10/24/2006US7127173 Method of adjusting power for a wavelength-division multiplexed optical transmission system
10/24/2006US7127172 Optical frequency filter
10/24/2006US7127170 Optical frequency division multiplexing network
10/24/2006US7127168 Multi-wavelength optical modulation circuit and wavelength-division multiplexed optical signal transmitter
10/24/2006US7127167 System for spectrum allocation in ethernet-based fiber optic TDMA networks
10/24/2006US7127166 Method for transmitting at least one first and one second data signal in polarization division multiplex in an optical transmission system
10/24/2006US7127165 Method and system for compensating for side effects of cross gain modulation in amplified optical networks
10/24/2006US7127142 Optical communication device
10/24/2006US7127133 Monolithically integrated optic triplexer and method for making same
10/24/2006US7127007 Method, apparatus and system for high-speed transmission on fiber optic channel
10/24/2006US7126971 Open-path laser/optical communication systems and methods utilizing wavelengths between atmospheric and gaseous absorption lines
10/24/2006US7126748 Optical fiber, optical fiber module, and Raman amplifier
10/24/2006US7126740 Multifunctional optical device having a spatial light modulator with an array of micromirrors
10/24/2006US7126691 Communications method and apparatus using quantum entanglement
10/24/2006US7126679 Device method and program for measuring polarization mode dispersion and recording medium recording the program
10/24/2006US7126419 Analog summing and differencing circuit, optical receiving circuit, optical transmitting circuit, automatic gain control amplifier, automatic frequency compensation amplifier, and limiting amplifier
10/24/2006US7124592 Temperature controlling circuit for a semiconductor light-emitting device
10/19/2006WO2006110138A1 Configurable data port for i2c or single-wire broadcast interface
10/19/2006WO2006109829A1 Communication system, communication device and method, and computer program
10/19/2006WO2006109051A1 Method and apparatus for communicating sound over an optical link
10/19/2006WO2006108403A1 Electrooptical coupling device
10/19/2006WO2006080372B1 Communication device, communication system, communication method, communication program, and communication circuit
10/19/2006WO2005104403A3 Compact optical transceivers
10/19/2006WO2005089516A3 Flat-topped chirp induced by optical filter edge
10/19/2006US20060233556 Power source for a dispersion compensation fiber optic system
10/19/2006US20060233555 Apparatus for optical clock extraction
10/19/2006US20060233554 Optical fiber systems for delivering short high power pulses
10/19/2006US20060233553 Optical transceiver module having adjustable signal polarity
10/19/2006US20060233552 Method for preemphasising an optical multiplex signal
10/19/2006US20060233550 Wavelength division multiplexed light source and passive optical network using the same
10/19/2006US20060233549 Optical switch and method for controlling optical path thereof
10/19/2006US20060233548 Private network link verification procedure in free space optical communication network
10/19/2006US20060233547 Optical network configuration for transmitting optical signals
10/19/2006US20060233546 Methods for testing optical transmitter components
10/19/2006US20060233503 Optical fiber and optical communication system employing the optical fiber
10/19/2006US20060233185 Access line termination system, access line termination device and transmission control method
10/19/2006US20060233058 Optical signal processing device, information recording/reproducing apparatus and information recording/reproducing system
10/19/2006US20060232851 Optical amplifier
10/19/2006US20060232847 Optical transmission method and optical transmission device
10/19/2006DE102005017677A1 Monolithically integrated, mode-coupled semiconductor laser pulse source designing method for e.g. measuring device, involves determining quantum layers with request of minimization of saturation performance by maximization of saturation
10/19/2006CA2604950A1 Method and apparatus for communicating sound over an optical link
10/18/2006EP1713301A1 Method and apparatus for communicating sound over an optical link
10/18/2006EP1713195A1 A polarisation-controlled encoding method, encoder and quantum key distribution system
10/18/2006EP1713191A1 Regenerator for 2R regeneration of an optical WDM signal
10/18/2006EP1713190A1 An optical network configuration for transmiting optical signals
10/18/2006EP1712948A1 Low power consumption driver circuit for a polarization scrambler
10/18/2006EP1712025A1 Method for the optical transmission of a polarisation-multiplexed signal
10/18/2006EP1712020A1 Optical pulse regenerator
10/18/2006EP1712008A2 Optimization of ultra-wideband communication through a wire medium
10/18/2006EP1374463A4 Optically amplified back-up receiver
10/18/2006EP1374451A4 Wdm channel monitoring system and method
10/18/2006CN1849833A Method and apparatus for use in a communication system
10/18/2006CN1849733A Seeking and tracking control for locking to transmision peak for a tunable laser
10/18/2006CN1849537A Modular dispersion compensator
10/18/2006CN1848711A A method of operating a passive optical network
10/18/2006CN1848710A Optical network configuration for transmitting optical signals
10/18/2006CN1848709A Passive optical network system for realizing protection switching and protection switching method
10/18/2006CN1848554A Apparatus for emitting light with controllable degree of polarization
10/18/2006CN1847896A Optical signal processing device, information recording/reproducing apparatus and information recording/reproducing system
10/18/2006CN1847894A Light transceiver module
10/18/2006CN1847893A Grouped light channel sharing protection method and system
10/18/2006CN1847891A Optical fiber and optical communication system employing the optical fiber
10/18/2006CN1281021C Apparatus and method for retaining optical synchronous transmission digital apparatus service stability
10/18/2006CN1281019C Light freuqency controlling device for super-dense type wave-division multi-path multiplex optical channel
10/18/2006CN1281018C Node device for optical cross connection
10/18/2006CN1281005C Method for choosing and controlling clock source of synchronous digital optical network
10/18/2006CN1280776C Dptical receiving machine
10/18/2006CN1280646C Double surface micro ball lens-wedge optical fiber integrated module and its producing method
10/18/2006CN1280645C Connector with laser diode and its mfg. method
10/18/2006CN1280139C Vehicle-carried CAN bus optical fiber hub
10/17/2006US7123914 Communication network system
10/17/2006US7123846 Optical receiving device, waveform optimization method for optical data signals, and waveform optimization program for optical data signals
10/17/2006US7123845 Receiving apparatus with waveform degradation compensating function
10/17/2006US7123844 Optical computational system
10/17/2006US7123843 System and method of using variable pulses for symbology
10/17/2006US7123842 Ultrasonic and infrared transmitter with tunable carrier frequency
10/17/2006US7123841 Optical transmission system
10/17/2006US7123840 Infrared signal communication system and method including transmission means having automatic gain control
10/17/2006US7123839 System and method for transmitting signals over a fiber strand
10/17/2006US7123838 Optical time-division multiplex signal processing apparatus and method, optical time-division multiplex signal receiver
10/17/2006US7123837 Optical ring network architecture
10/17/2006US7123836 All-optical network distribution system
10/17/2006US7123835 Method and system for increasing the capacity and spectral efficiency of optical transmission
10/17/2006US7123834 Transmission system and method for equalization of channels in the system
10/17/2006US7123833 Dynamically reconfigurable optical smart node
10/17/2006US7123832 Methods and apparatus for optical network management using pilot tones
10/17/2006US7123831 Device and method for restoring connections in automatically switchable optical networks
10/17/2006US7123830 WDM self-healing optical ring network
10/17/2006US7123806 Intelligent optical network element
10/17/2006US7123793 Modulator array architectures
10/17/2006US7123788 Apparatus for monitoring optical frequencies of WDM signals
10/17/2006US7123786 Compact, cost-effective optical-electrical-optical (OEO) converter for an optical transmission network
10/17/2006US7123633 Method for maintaining mode-locked state of fabry-perot laser irrespective of temperature change and WDM light source using the same method