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)
02/2003
02/19/2003CN1398061A All-band laman optical fibre amplifier
02/19/2003CN1398060A Test system and method for fast light transmission module
02/19/2003CN1397833A Multi-band rare-earth doped optical fibre amplifier
02/19/2003CN1397815A Microphotoelectric machinery for regulatable light delay line
02/19/2003CN1101999C Infrared signal transmitting appts.
02/19/2003CA2420611A1 Method and device for determining and compensating for the tilting of the spectrum in an optical fiber of a data transmission path
02/18/2003US6523011 Communication system for transmitting accounting instructions
02/18/2003US6522828 Electrical power distribution system
02/18/2003US6522825 Optical-to-electrical conversion on rear-panel transition cards
02/18/2003US6522821 Dispersion-compensating optical fiber and optical transmission system including the same
02/18/2003US6522803 Optical cross-connect equipment
02/18/2003US6522749 Quantum cryptographic communication channel based on quantum coherence
02/18/2003US6522697 Use of higher order modulation techniques to transmit large aggregate data rates on an optical link with relatively low speed electronics
02/18/2003US6522673 Method and apparatus for optical transmission
02/18/2003US6522461 Optical pre-amplifier apparatus and method for receiver performing gain control according to LOS declaration
02/18/2003US6522460 Optical fiber amplifier control
02/18/2003US6522459 Temperature control and monitoring of optical detector components in an optical communication system
02/18/2003US6522455 WDM optical communication system having a dispersion slope compensating element
02/18/2003US6522449 Device for erasing overhead modulation of an optical signal
02/18/2003US6522440 Inter-satellite optical link track sensor
02/18/2003US6522439 Optical distortion compensation apparatuses, methods, and systems
02/18/2003US6522438 High-speed optical duobinary modulation scheme
02/18/2003US6522437 Agile multi-beam free-space optical communication apparatus
02/18/2003US6522435 High-throughput, low-latency next generation internet networks using optical label switching and high-speed optical header generation, detection and reinsertion
02/18/2003US6522434 System and method for determining optical loss characteristics of optical fibers in an optical fiber network
02/18/2003CA2246808C Apparatus and method for monitoring optical fibers
02/18/2003CA2190804C Method and devices for wavelength and power demodulation based on the use of a quantum well electroabsorption filtering detector
02/17/2003CA2393914A1 Tunable, reconfigurable optical add-drop multiplexer and a switching device
02/13/2003WO2003013033A1 Electro-optical device for channel equalization in a multichannel optical link
02/13/2003WO2003013032A1 Optical signal regeneration
02/13/2003WO2003013030A2 An optical signal receiver
02/13/2003WO2003013029A1 Equalizing q-factor using channel spacing in a raman-amplified system
02/13/2003WO2003012535A1 Optical pulse generator with single frequency drive
02/13/2003WO2003012501A1 Optical waveguide fiber for local access
02/13/2003WO2003012499A2 Semiconductor multi-path wave guide to concurrently route signals
02/13/2003WO2003012488A2 Contolling noise figure in raman amplifiers
02/13/2003WO2002075935A9 Apparatus for frequency tuning and locking and method for operating same
02/13/2003WO2002061979A3 Monitor, control and configuration of fiber node via cable modem
02/13/2003WO2002058301A8 Split wave method and apparatus for transmitting data in long-haul optical fiber systems
02/13/2003WO2002056108A3 Modulation systems using dual channel optical modulators
02/13/2003WO2002054631A3 Device and method for compensating for chromatic dispersion
02/13/2003WO2002021737A3 Fiber protection and non-intrusive expansion methods and apparatus
02/13/2003WO2002011321A3 Multichannel system analyzer
02/13/2003US20030032390 Acquisition and tracking in communication system with multicarrier telephony transport
02/13/2003US20030031440 Method and system for dispersion maps and enhanced distributed gain effect in long haul telecommunications
02/13/2003US20030031433 Systems and methods for placing line terminating equipment of optical communication systems in customer points of presence
02/13/2003US20030031408 Mode sensitive filter and optical transmitter/receiver
02/13/2003US20030031398 Unitary testing apparatus for performing bit error rate measurements on optical components
02/13/2003US20030030893 Optical pre-amplifier apparatus and method for receiver performing gain control according to los declaration
02/13/2003US20030030890 Raman amplifier
02/13/2003US20030030887 Wavelength converting apparatus using optical source having fixed wavelength and an optical cross connect system adapting thereof
02/13/2003US20030030878 Optical receiver for receiving a plurality of input signals
02/13/2003US20030030877 Low-cost optical burst transmission system, apparatus, and method
02/13/2003US20030030876 Optical transmitter, optical receiver and light wavelength multiplexing system
02/13/2003US20030030875 Method for channel tagging in DWDM optical communication systems
02/13/2003US20030030874 Method and system for amplitude modulation of an optical signal
02/13/2003US20030030872 Optical transmitter for transmitting a plurality of output signals
02/13/2003US20030030871 Diversley routed fault tolerant optical node
02/13/2003US20030030870 Tunable chromatic dispersion compensation
02/13/2003US20030030868 Optical transmitter-receiver
02/13/2003US20030030867 Wavelength multiplexing transmission apparatus and wavelength demultiplexing reception apparatus
02/13/2003US20030030865 Wavelength division multiplexing optical transmission system and transmission method
02/13/2003US20030030863 Bi-directional single fiber optic link for data and radio frequency transmissions
02/13/2003US20030030862 Device and method for monitoring signal characteristics of optical signals in an optical communications network
02/13/2003US20030030861 Methods for reliable communication of link monitoring information in optical communications networks
02/13/2003US20030030860 Redundant line unit monitoring architecture
02/13/2003US20030030859 Optical performance monitoring apparatus for a WDM optical communication system
02/13/2003US20030030479 Logarithmic amplifier
02/13/2003US20030030386 Non-flickering illumination based communication
02/13/2003US20030029991 Temperature compensating circuit, temperature compensating logarithm conversion circuit and light receiver
02/13/2003CA2455817A1 System and method for controlling noise figure
02/12/2003EP1283620A2 Device and method for client registration in an automatically switchable optical network
02/12/2003EP1283609A2 Signal transmitter for an optical fibre
02/12/2003EP1283570A1 Parallel optical module and information processing device
02/12/2003EP1283567A2 Automatic gain control device of optical fiber amplifier
02/12/2003EP1283566A2 Optical amplifier for amplifying multi-wavelength light
02/12/2003EP1283433A2 Broadband tunable dispersion compensator
02/12/2003EP1283000A2 A reconfigurable optical switch
02/12/2003EP1282949A1 Method for preempting the priority of the lowest priority cable when the highest priority cable is failure
02/12/2003EP1282947A2 Optical free space signalling system
02/12/2003EP1282891A1 Remote control and power system
02/12/2003EP1282835A2 Emulator for second order polarization mode dispersion (pmd)
02/12/2003EP1282809A1 Wavelength monitor for wdm systems
02/12/2003CN2535978Y Luminous powder dynamic gain equalizing apparatus
02/12/2003CN1397114A Method and apparatus for removing non-linear distortion in optic transmitter
02/12/2003CN1397113A System and method for measuring in-band cross-talk in optical communication system
02/12/2003CN1396739A Multi-channel optical wavelength locking device and method in optical communication system
02/12/2003CN1396738A Optical ADM device based on microelectromechanical system and technique
02/12/2003CN1396737A Optical WDM module
02/12/2003CN1396736A Coder-decoder for return-to-zero code or mark inverse code
02/12/2003CN1396725A Optical fibre and optical transmission system using said optical fibre
02/12/2003CN1396724A Mode sensitive optical filter and optical transmitting set/receiver
02/12/2003CN1396722A 光传输系统 The optical transmission system
02/12/2003CN1396685A Adjustable wavelength laser
02/12/2003CN1101626C Method and system of automatic multiplex noe structure
02/11/2003US6519658 Memory unit and method of assembling a computer
02/11/2003US6519644 System and method for dial-up networking over infrared data link
02/11/2003US6519390 Chirped Bragg grating reflectors and adjustable dispersion apparatus incorporating such gratings
02/11/2003US6519385 Method and apparatus for controllably positioning an optical fiber to introduce a phase shift
02/11/2003US6519082 Apparatus and method for a self-adjusting Raman amplifier
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