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)
05/2003
05/01/2003US20030081307 Raman amplification
05/01/2003US20030081306 DWDM optical source wavelength control
05/01/2003US20030081298 Method and system for controlling the output of an optical pump energy source
05/01/2003US20030081297 Optical signal receiving module, optical signal receiver and optical fiber communication equipment
05/01/2003US20030081295 Transmission device and repeater
05/01/2003US20030081294 Free-space optical WDM communication system
05/01/2003US20030081293 Optical communications system and method
05/01/2003US20030081292 Transmission characteristic compensation control system
05/01/2003US20030081291 Equalization of optical signals
05/01/2003US20030081290 Method of and device for performing bi-directional transmission using a single-wire
05/01/2003US20030081288 Infrared communication device
05/01/2003US20030081285 Transmission device having wavelength-band-specific optical amplifiers provided commonly for all transmission lines
05/01/2003US20030081284 Optical communications system
05/01/2003US20030081283 Optical exchange for wavelength division multiplexed (WDM) network, and optical exchange method for WDM network
05/01/2003US20030081282 WDM transmission system, central controller for the system, and method for controlling preemphasis in the system
05/01/2003US20030081281 WDMA free space broadcast technique for optical backplanes and interplanar communications
05/01/2003US20030081280 Apparatus and method for monitoring an optical transmission line
05/01/2003US20030081279 Optical interface
05/01/2003US20030081277 Adaptive method for chirping an optical data signal
05/01/2003US20030081200 Optical bit rate detector
04/2003
04/30/2003CN1415145A 光学分插滤光器 Drop optical filters
04/30/2003CN1414799A Mobile communication double frequency indoor signal optical fibre distribution system
04/30/2003CN1414728A Full optical fibre shift light pulse sequence compression-expansion mode
04/30/2003CN1414710A Distribution type large sacle star coupler used in photo network system
04/30/2003CN1414413A Optical signal separator with high filter accuracy
04/30/2003CN1414403A Grating type filter with adjustable spectrum shape
04/30/2003CN1107387C Modular unit headset
04/29/2003US6556836 Point-to-point, millimeter wave, dual band free space gigabit per second communication link
04/29/2003US6556758 Optical fiber and optical transmission line including the same
04/29/2003US6556744 Reduction of dispersion effects in optical transmission fibre systems
04/29/2003US6556742 Optical wavelength division multiplexed system using wavelength splitters
04/29/2003US6556738 Fiber optic circuit and module with switch
04/29/2003US6556736 Dynamic passband shape compensation of optical signals
04/29/2003US6556732 All fiber polarization mode dispersion compensator
04/29/2003US6556346 Optical amplifying unit and optical transmission system
04/29/2003US6556345 Optical network equipment with control and data paths
04/29/2003US6556342 Thulium doped fiber pump for pumping Raman amplifiers
04/29/2003US6556341 Optical transmission system having cascaded raman
04/29/2003US6556340 Optical amplifiers and upgrade modules
04/29/2003US6556335 Optical signal processor
04/29/2003US6556330 Apparatus and method for an integrated photodiode in an infrared receiver
04/29/2003US6556328 Frequency stabilizing equipment for optical communication light source
04/29/2003US6556327 Signal converter, optical transmitter and optical fiber transmission system
04/29/2003US6556326 Synchronous amplitude modulation for improved performance of optical transmission systems
04/29/2003US6556325 Optical repeater monitoring system and a method thereof
04/29/2003US6556324 Device for controlling the beam alignment in satellite laser communications systems
04/29/2003US6556323 Demultiplexing and clock-recovery circuit
04/29/2003US6556322 Method of detecting one or more free channels in an optical time-division multiplex, a device for implementing it and the use of the device
04/29/2003US6556321 WDM optical network and switching node with pilot tone communications
04/29/2003US6556320 Tunable chromatic dispersion, dispersion slope, and polarization mode dispersion compensator utilizing a virtually imaged phased array
04/29/2003US6556319 Split redundant trunk architecture using passive splitters and path switching
04/29/2003US6556297 Athermalization and pressure desensitization of diffraction grating based spectrometer devices
04/29/2003CA2280576C A quantum cryptographic communication channel based on quantum coherence
04/26/2003CA2409919A1 Optical amplifier arrangement
04/24/2003WO2003034629A1 Method for demultiplexing an optical data flow
04/24/2003WO2003034624A2 Method for switching and routing large bandwidth continuous data streams form a centralized location
04/24/2003WO2003034623A2 Efficient optical transmission system
04/24/2003WO2003034622A1 Integration of a fiber optic fixed access and a fibre optic radio access network
04/24/2003WO2003034621A1 Control station apparatus, base station apparatus, and optical transmission method
04/24/2003WO2003034620A1 Method and apparatus for conditioning a transmission path for free-space optical wireless data communications
04/24/2003WO2002071701A3 Data path architecture for a light layer 1 oeo switch
04/24/2003WO2002056069A3 Method and apparatus for optimizing the dispersion and dispersion slope for a dispersion map with slope-compensating optical fibers
04/24/2003WO2002054631A9 Device and method for compensating for chromatic dispersion
04/24/2003WO2002049252A9 High-speed optical data network with improved optical receiver
04/24/2003WO2002025845A3 Tunable optical dispersion by using two fiber bragg gratings with nonlinear group delays
04/24/2003US20030079233 Method for consolidation of services, equipment, and content using spectrally efficient transport
04/24/2003US20030078074 Optical fiber based on wireless scheme for wideband multimedia access
04/24/2003US20030078052 Method and apparatus for sharing infrastructure between wireless network operators
04/24/2003US20030077700 Nucleotide sequences coding polypeptide for use in the treatment of tumors, nervous system amd liver disordrs
04/24/2003US20030077037 Method and apparatus of a semiconductor-based tunable optical dispersion compensation system with multiple system with multiple channels
04/24/2003US20030077032 Long distance optical transmission system for high dynamic range signals
04/24/2003US20030077030 Protection in mixed optical wdm systems
04/24/2003US20030076790 Transmission device
04/24/2003US20030076588 Generation of variable differential group delay
04/24/2003US20030076581 Method and apparatus for monitoring of data channels
04/24/2003US20030076578 Optical transmitting apparatus and an optical transmitting system
04/24/2003US20030076577 Lossless optical transmission link
04/24/2003US20030076570 Method, system and apparatus for optically receiving information
04/24/2003US20030076569 Optical transmitter power setting using feedback
04/24/2003US20030076568 Light frequency stabilizer
04/24/2003US20030076567 Efficient optical transmission system
04/24/2003US20030076566 Optical communication devices, light emission devices and optical communication methods
04/24/2003US20030076563 Optical retiming of an optical data signal
04/24/2003US20030076560 Single fiber passive optical network wavelength division multiplex overlay
04/24/2003US20030076502 Method and apparatus for locking the transmission wavelength in optical communication laser packages
04/24/2003US20030076493 Spectrometer module and applications thereof
04/24/2003DE10137868C1 Verfahren zur Dispersionskompensationsregelung Methods for dispersion compensation scheme
04/24/2003DE10130993C1 Arrangement for optimizing quality of wavelength division multiplex signal with residual dispersion has decoupler, module for adjusting residual dispersion of signal, signal quality detector
04/23/2003EP1304820A1 Optical transmitter and optical fiber transmission system having the same
04/23/2003EP1304819A2 Central multi-wavelength source
04/23/2003EP1304775A2 Dispersion-compensated optical fiber amplifier
04/23/2003EP1303934A2 Apparatus and method for optical communication protection
04/23/2003EP1303932A1 Optical pulse train generator
04/23/2003EP1303931A1 Polarization diversity detector mask selection algorithm
04/23/2003EP1303930A1 Auto-tracking method for a free space optical communication system
04/23/2003EP1303784A1 Method and arrangement in connection with optical bragg-reflectors
04/23/2003EP1044522B1 Optical device for monitoring multi-wavelength signals
04/23/2003EP1042875B1 An optical transmitter
04/23/2003EP1019763B1 Fiber optic rotary joint
04/23/2003EP0834094B1 Solitons in dispersion flattened waveguide
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