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
02/27/2003US20030039012 Communication system and method to avoid laser-pulse broadening by multi-path effects
02/27/2003US20030039010 Optical communication system, optical communication unit, and optical transceiving package
02/27/2003US20030039009 Optical multiplexing transmission apparatus and system
02/27/2003US20030039006 Wavelength division multiplexing optical transmission system using a spectral inversion device
02/27/2003US20030039005 Measurement of polarization dependent loss in an optical transmission system
02/27/2003US20030039002 Optical communication system
02/27/2003US20030038936 Polarization-independent optical sampling with extended wavelength range
02/27/2003CA2420169A1 Multi-channel optical receiver for processing tri-cell polarization diversity detector outputs
02/27/2003CA2399775A1 A fault isolation technique for all optical networks
02/27/2003CA2397130A1 Optical transmission line and optical communication system
02/26/2003EP1286488A1 Optical code converter
02/26/2003EP1286483A2 Improved optical modulator allowing an optimization of NRZ-modulation
02/26/2003EP1286482A1 Optical transmitter employing two electro-absorption modulators
02/26/2003EP1286436A2 Wavelength monitor and laser module
02/26/2003EP1286206A2 Tunable, reconfigurable optical add-drop multiplexer and a switching device
02/26/2003EP1285891A1 Tellurite glass, optical amplifier and light source
02/26/2003EP1285292A1 Optical fibre comprising a bragg grating and tunability means
02/26/2003EP1025660B1 Optical emitter having a modulatable laser source with stable wavelength
02/26/2003CN2538103Y Chromatic dispersion raster structure light power dynamic gain equalier
02/26/2003CN1399824A Second order predistorter for return laser transmitter
02/26/2003CN1399823A Optical power management in optical network
02/26/2003CN1399438A Band selecting add and drop device of light communication system
02/26/2003CN1399421A Gain balancing system and method in light transmission system
02/26/2003CN1399420A Incoherent chirp-encoding optical CDMA access system
02/26/2003CN1399419A Multi-channel laser driver with channels capable of being programmed separately
02/26/2003CN1399167A RE-doped superwide band fiber amplifier
02/26/2003CN1102244C Optical exchange structure
02/25/2003US6526270 IrDA modulation/demodulation integrated circuit device
02/25/2003US6526209 Optical fiber having improved optics and structure
02/25/2003US6526208 Dispersion managed fiber optic cable and system
02/25/2003US6526199 Arrayed waveguide grating wavelength division multiplexer provided with alignment waveguides and apparatus for aligning the same
02/25/2003US6526080 Bidirectional light transmitting and receiving device
02/25/2003US6526075 Method for driving a semiconductor light source device for transmitting a signal
02/25/2003US6525873 Optical amplifiers with a simple gain/output control device
02/25/2003US6525871 Optical amplification apparatus
02/25/2003US6525869 Raman amplifier
02/25/2003US6525858 Optical receiver and optical network system using thereof
02/25/2003US6525857 Method and apparatus for interleaved optical single sideband modulation
02/25/2003US6525856 Image display apparatus
02/25/2003US6525855 Telecommunications system simultaneously receiving and modulating an optical signal
02/25/2003US6525854 Portable radio terminal with infrared communication function, infrared emission power controlling method between portable radio terminal and apparatus with infrared communication function
02/25/2003US6525853 Laser communication system and method of operation using multiple transmitters and multiple receivers with dispersive multiplexing in multimode fiber
02/25/2003US6525852 Add and drop node for an optical WDM network having traffic only between adjacent nodes
02/25/2003US6525851 High-throughput, low-latency next generation internet networks using optical label switching and high-speed optical header generation, detection and reinsertion
02/25/2003US6525850 High-throughput, low-latency next generation internet networks using optical label switching and high-speed optical header generation, detection and reinsertion
02/20/2003WO2003015392A2 Technique for reverse transport of data in a hybrid fiber coax cable system
02/20/2003WO2003015324A1 Osp hardened wdm network
02/20/2003WO2003015317A1 System and methods for communication over a bidirectional optical bus
02/20/2003WO2003014773A2 Dispersion managed discrete raman amplifiers
02/20/2003WO2003014771A2 Optical fiber amplifier
02/20/2003WO2002082706A3 High spectral efficiency, high performance optical mux and demux architecture
02/20/2003WO2002049241A3 Fiber optic system including digital controller for fiber optic tunable filter and associated methods
02/20/2003WO2001094996A3 Athermalization and pressure desensitization of diffraction grating based wdm devices
02/20/2003US20030036356 Wireless communication systems
02/20/2003US20030035641 Active equipment protection methods and apparatus
02/20/2003US20030035629 Tunable optical structure for the compensation of chromatic dispersion in a light signal
02/20/2003US20030035625 Cromatic dispersion compensator
02/20/2003US20030035618 Optical fiber communication system using optical phase conjugation as well as apparatus applicable to the system and method of producing the same
02/20/2003US20030035616 Add-drop multiplexer with signal amplification ability
02/20/2003US20030035459 Wavelength-tunable lasers
02/20/2003US20030035421 Optical switching method and system therefor
02/20/2003US20030035216 Variable dispersion compensator
02/20/2003US20030035207 Dispersion managed discrete Raman amplifiers
02/20/2003US20030035206 Optical power transient control scheme for EDFA amplifiers
02/20/2003US20030035205 Fiber optic sensor signal amplifier
02/20/2003US20030035186 Optical transmitter
02/20/2003US20030035185 Signal emitter for optical fibers
02/20/2003US20030035184 Optical transmission system
02/20/2003US20030035183 Optical communication system
02/20/2003US20030035182 Free-space optical communication system
02/20/2003US20030035181 Interconnecting processing units of a stored program controlled system using free space optics
02/20/2003US20030035180 Installation of processing units into a stored program controlled system wherein the component processing units are interconnected via free space optics
02/20/2003US20030035179 Chromatic dispersion characterization
02/20/2003US20030035178 Solid-state system for tracking and regulating optical beams
02/20/2003US20030035177 Communication system
02/20/2003US20030035175 Method and apparatus for switching automatically and synchronously among optical channels
02/20/2003US20030035173 Interconnecting processing units of a stored program controlled system using time division muliplexed free space optics
02/20/2003US20030035172 Tunable, reconfigurable optical add-drop multiplexer and a switching device
02/20/2003US20030035171 Optical wavelength multiplexing transmission apparatus and optical output control method for optical wavelength multiplexing transmission apparatus
02/20/2003US20030035170 Method and system for coordinating and utilizing channel power information in an optical communications network
02/20/2003US20030035169 Interconnecting processing units of a stored program controlled system using wavelength division muliplexed free space optics
02/20/2003US20030035164 Method of making an optical transmission system safe, a device for implementing the method, and an optical transmission system including the device
02/20/2003US20030035163 Optical channel monitor utilizing multiple fabry-perot filter pass-bands
02/20/2003US20030035162 Method for wavelength stabilized photonic transmission
02/20/2003US20030034963 Digital video signal interface module for transferring signals to a long distance
02/20/2003US20030034907 Optical code converter
02/20/2003US20030034796 Flat group-delay low-pass filter, mounting structure thereof, flat group-delay low-pass filter device, and optical signal receiver
02/20/2003US20030034787 Wafer test apparatus including optical elements and method of using the test apparatus
02/20/2003US20030034432 Method and apparatus for the correction of optical signal wave front distortion within a free-space optical communication system
02/20/2003CA2457447A1 Technique for reverse transport of data in a hybrid fiber coax cable system
02/19/2003WO2002017514A1 Method and device for determining and compensating for the tilting of the spectrum in an optical fiber of a data transmission path
02/19/2003EP1284547A1 Method and apparatus for protection in an optical transmission system
02/19/2003EP1284431A1 Interconnecting processing units using space division multiplexed free space optics
02/19/2003EP1284430A1 Method and apparatus for interconnecting processors by WDM
02/19/2003EP1284429A1 Processor interconnection system
02/19/2003EP1284247A1 Tellurite glass, optical amplifier and light source
02/19/2003EP1284062A2 Methods and apparatus for preventing deadbands in an optical communication system
02/19/2003EP1284058A2 Optical transmission systems and methods including optical protection
02/19/2003CN2537176Y Optical transmitting-receiving module with digital packing function
02/19/2003CN1398087A Broad-band access system for MAN
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