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)
12/2005
12/28/2005EP1610478A1 Optical modulator having reduced bandwidth requirements and method of operation thereof
12/28/2005EP1610477A1 Optical microwave transmitter with self-pulsating laser
12/28/2005EP1610476A1 Optical signal time-of-flight measurements
12/28/2005EP1610475A1 Optical transmission path failure detection system
12/28/2005EP1609256A1 Optical device, especially for the suppression of a rayleigh double backscattered noise and system comprising said device
12/28/2005EP1609255A1 Preventing damage to optical components from optical time domain reflectometers
12/28/2005EP1436931B1 Digital optical network architecture
12/28/2005EP0928424B1 Automatic fault location in cabling systems
12/28/2005EP0855112B1 Optical communication system
12/28/2005CN2749185Y An optical signal converter
12/28/2005CN2749184Y 1000M optical fiber transceiver
12/28/2005CN1713591A Alarm correlation analysis of light synchronous transmitting net
12/28/2005CN1713550A Optical transmission system, and pumping light source stopping device and method to be used in same system
12/28/2005CN1713549A One way fiber breaking off checking method of spanning tree
12/28/2005CN1713548A Realization of automatic light shut off function for light transmitting network in circular synchronous digital system
12/28/2005CN1713547A Realization of automatic light shut off function for light transmitting network in synchronous digital system
12/28/2005CN1234217C Light beam divergent angle variable laser communications spire device without optical fibre and controlling method thereof
12/28/2005CN1234216C Optical transmission apparatus
12/28/2005CN1234215C Satellite laser communication analog device
12/28/2005CN1234042C Monitoring device for gain characteristic of Er-doped fibre-optical amplifier
12/27/2005US6980831 Radio communication base state system including optical advanced base station
12/27/2005US6980747 Optically amplified receiver
12/27/2005US6980746 Electronic RZ/CSRZ signal generation for optical communication systems
12/27/2005US6980745 Optical transmission system
12/27/2005US6980744 Methods and systems for polarization mode dispersion compensation
12/27/2005US6980743 Transparent wavelength division multiplexing
12/27/2005US6980742 Wavelength control in optical WDM systems
12/27/2005US6980741 Optical transmission systems, optical receivers and receiving methods
12/27/2005US6980740 Apparatus for detecting raman gain in an optical transmission system
12/27/2005US6980739 Method for gain control of fiberoptic repeating system
12/27/2005US6980738 Method and system for providing tunable dispersion compensation
12/27/2005US6980737 Method and apparatus for rapidly measuring optical transmission characteristics in photonic networks
12/27/2005US6980525 Method and system for creating and implementing zones in hardware within a fiber channel system
12/27/2005US6980357 Optical amplifier apparatus and method
12/27/2005US6980356 Optical amplifier and method thereof
12/27/2005US6980289 System and method for measuring and compensating for the polarization mode dispersion of an optical signal
12/27/2005US6980287 System for testing an optical network using optical time-domain reflectometry (OTDR)
12/27/2005US6979810 Optical modules and methods of making the optical modules
12/27/2005US6978624 Thermoeletric cooler controller
12/22/2005WO2005122445A1 Multistage optical amplifier and method to compensate for amplified spontaneous emission
12/22/2005WO2005122444A1 Optical communication apparatus and optical communication system
12/22/2005WO2005122443A2 Chip to chip optic alleys and method
12/22/2005WO2005122442A1 Method for performing association in automatic switching optical network
12/22/2005WO2005122348A1 Wavelength stabilized laser module
12/22/2005WO2005101286A3 Processing of signals with regenerative opto-electronic circuits
12/22/2005US20050281565 Burst mode optical receiver and system and method therefor
12/22/2005US20050281564 Optical receiver circuit
12/22/2005US20050281563 Line driver with variable bandwidth control
12/22/2005US20050281562 Method for transmitting a data flow over an optical bus, corresponding system and computer program product
12/22/2005US20050281561 Quantum optical transmission device
12/22/2005US20050281560 Current sensing system
12/22/2005US20050281559 Adjustable coverage infrared transmission system
12/22/2005US20050281556 Optical switching apparatus and optical communication network system
12/22/2005US20050281528 Optical transceiver, connector, substrate unit, optical transmitter, optical receiver, and semiconductor device
12/22/2005US20050281298 Analog external cavity laser
12/22/2005US20050281250 Fiber optic synchronous digital hierarchy telecommunication network provided with a protection system shared on the network
12/22/2005DE10330647B4 Vorrichtung zur Übertragung optischer Signale zwischen einem rotierenden und einem stationären Teil einer Maschine An apparatus for transmitting optical signals between a rotating and a stationary part of a machine
12/22/2005DE10001014B4 Einrichtung zur digitalen Phasen- und/oder Amplitudenmodulation einer Lichtwelle Means for digital phase and / or amplitude modulation of a light wave
12/21/2005EP1606895A1 Apparatus for mitigating the effects of polarization mode dispersion of a plurality of optical signals
12/21/2005EP1606894A1 Optical transmission system
12/21/2005EP1606605A2 System for detection of wafer defects
12/21/2005EP1302006B1 Cascaded pumping system for distributed raman amplification in optical fiber telecommunication systems
12/21/2005EP1101301B1 Optical communication with pre-compensation for third order distortion in modulation and transmission
12/21/2005CN2747788Y All fiber digital code acoustics
12/21/2005CN1711789A Optical fiber coupling configurations for a main-remote radio base station and a hybrid radio base station
12/21/2005CN1711707A 光学系统 Optical system
12/21/2005CN1711706A Optical transceiver module with improved DDIC and methods of use
12/21/2005CN1710840A Channel power equalizer based on non-balanced loss optical fiber non-linear environment
12/21/2005CN1710839A Method for improving optical-fiber type complete optical buffer register characteristic
12/21/2005CN1710838A Photoelectric network terminal
12/21/2005CN1710837A Expense message processing apparatus and processing method thereof
12/21/2005CN1710836A Laser receiving and echo device
12/21/2005CN1710835A High-speed large view-field capture tracing detecting apparatus in space optical communication
12/21/2005CN1233127C Compensation method for temperature correlated gain spectrum characteristic of L-band Er-doped fiber amplifier
12/21/2005CN1233126C Circuit protection arrangement for optical data transmission section
12/21/2005CN1233114C Optical transmitting line
12/21/2005CN1232847C Quasi-coplanar waveguide compatible waveguide type photo-detector tube core and fabricating method thereof
12/20/2005US6978093 Free space optical communication network
12/20/2005US6978092 Apparatus for optical communication using a large-area primary reflector
12/20/2005US6978091 Methods and apparatus for generating local oscillation signals
12/20/2005US6978090 Optical network architecture
12/20/2005US6978064 Variable optical filter and optical transmission system using same, and method of controlling variable optical filter
12/20/2005US6978062 Wavelength division multiplexed device
12/20/2005US6977772 Direct optical amplifier correlating average level of main signal with level of pilot tone signal
12/20/2005US6977771 Optical amplifier supervisory control method in WDM communication system
12/20/2005US6977770 Optical amplifier and control method therefor
12/20/2005US6977720 Characterization of active and passive optical properties of an optical device
12/20/2005CA2287326C Message transmission system with frequency dividing optical components for parallel processing of optical pulses
12/15/2005WO2005119954A1 Two-stage optical bi-directional transceiver
12/15/2005WO2005119945A2 Optical line termination, optical access network, and method and apparatus for determining network termination type
12/15/2005WO2005119944A1 Control circuitry in optoelectronic modules for laser modulation crossing point adjustment
12/15/2005WO2005119943A1 Optical signal quality monitoring circuit and optical signal quality monitoring method
12/15/2005WO2005119942A2 Optical wireless communications using ultra short light pulses and pulse shaping
12/15/2005WO2005119921A2 Ultra-wideband communication through a wire medium
12/15/2005WO2005117706A1 Device for contactlessly transmitting signals and measured data in a computer tomograph
12/15/2005WO2005099136A3 Radio frequency identification of a connector by a patch panel or other similar structure
12/15/2005WO2005076835A3 All-optical wavelength converter circuit
12/15/2005WO2004113934A3 Optical detection network and network detection node for use therein
12/15/2005US20050277401 Heterodyne receiver and communication system
12/15/2005US20050276615 Electroabsorption-modulated fabry-perot laser and methods of making the same
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