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)
04/2004
04/29/2004DE10107538B4 Optisches Freiraum-Kommunikationssystem und Verfahren zur breitbandigen Übertragung von hochratigen Daten Free-space optical communication system and method for broadband transmission of high data
04/28/2004EP1414152A1 A phase shifted binary encoder for a phase modulator in an optical network
04/28/2004EP1413073A2 Wireless duplex optical communication system
04/28/2004EP1413025A2 Optical frequency synthesizer
04/28/2004EP1413022A2 Wavelength division multiplex optical wavelength converter
04/28/2004EP1412966A1 Multi-wavelength semiconductor laser arrays and applications thereof
04/28/2004EP1151560A4 Multi-channel wave division multiplexer system
04/28/2004CN2613937Y Unviersal digital optical fibre communication terminal
04/28/2004CN1493122A Access method for data packet networks
04/28/2004CN1492679A CATV light receiving module with active amplifier
04/28/2004CN1492619A Light signal-noise ratio monitoring method for optical transmission system
04/28/2004CN1492618A Method and device for connecting light cross linking channel and non-relative expense
04/28/2004CN1492617A Array type wave guide multiplexing/demultiplexing device
04/28/2004CN1492616A 薄膜滤波器 Thin-film filter
04/28/2004CN1492604A Step transmission quantum safety direct communication method
04/28/2004CN1492603A Tunnel establishing method of automatic switching optial network
04/28/2004CN1492602A Double optical fiber light ring shape net
04/28/2004CN1492601A Recovering method for controlling plane after multi-node restarting in intelligent optical network
04/28/2004CN1492268A Method for producing dynamic light intensity, gain equalizer
04/28/2004CN1492250A Polarized wave mode chromatic dispersion compensation method and polarized wave mode chromatic dispersion conpensation device
04/28/2004CN1492247A Dispersion compensation module
04/28/2004CN1492245A Method for producing long wave planar photoelectric detector micro ball lens
04/28/2004CN1492242A Method for producing optical fiber array element
04/28/2004CN1148029C Optical wave interleaving transmitter and receiver modules
04/28/2004CN1147749C Dispersion compensator
04/28/2004CN1147748C 光通信装置 The optical communication apparatus
04/27/2004US6728495 Light output control circuit with a warning function of deteriorated light output
04/27/2004US6728494 Light-emitting device drive circuit, and optical transmission system using the circuit
04/27/2004US6728493 Method and arrangement for clock and data recovery
04/27/2004US6728491 Polarization-mode dispersion detecting method, and a dispersion compensation controlling apparatus and a dispersion compensation controlling method
04/27/2004US6728490 Optical transmitter, optical receiver, optical transmission system, and optical transmission method
04/27/2004US6728489 Optical transmission system constructing method and system
04/27/2004US6728487 Drive method for a plurality of acousto-optic filters, acousto-optic filter apparatus, and selective wavelength extension method
04/27/2004US6728445 Closed-loop control of tunable optical wavelength filters
04/27/2004US6728440 Method and apparatus for multi-pass photonic processors with circulators and multiple-fiber collimators
04/27/2004US6728436 Optical signal modulation method and optical signal transmission system for high speed transmission system
04/27/2004US6728281 Quantum-dot photon turnstile device
04/27/2004US6728277 Envelope biasing for laser transmitters
04/27/2004US6728248 Optical line terminal
04/27/2004US6728223 Echo canceller system
04/27/2004US6728028 Low noise figure optical amplifier for DWDM systems with per sub-band power control
04/27/2004US6728027 Bidirectional optical amplifier
04/27/2004US6728026 Dynamically tunable optical amplifier and fiber optic light source
04/27/2004US6727991 Format insensitive and bit rate independent optical preprocessor
04/27/2004US6727985 System and method for signal acquisition in a distance meter
04/27/2004US6727826 Remotely controlled toy and wireless remote operable in a point of sale package
04/27/2004US6727490 Method and apparatus for detecting malfunctions in communication systems
04/27/2004CA2241937C Robust method and apparatus enabling multi-mode wireless optical communication
04/27/2004CA2113213C Pixel control circuitry for spatial light modulator
04/22/2004WO2004034613A2 Devices and methods for dynamic dispersion compensation
04/22/2004WO2004034612A1 Device and method for regulating chromatic dispersion
04/22/2004WO2004034611A1 Method and arrangement for determining signal degradations in the presence of signal distortions
04/22/2004WO2004034610A1 Method and system for pairing a remote control transmitter and receiver
04/22/2004WO2004034530A1 TRANSMITTER PHOTONIC INTEGRATED CIRCUIT (TxPIC) CHIPS
04/22/2004WO2004034102A2 Devices and methods for dynamic dispersion compensation
04/22/2004WO2004034098A2 Optical transceiver module with multipurpose internal serial bus
04/22/2004WO2004033557A1 Method and apparatus for compensating a photo-detector
04/22/2004WO2004019071A3 Method and apparatus providing common optical line monitoring and service channel over wdm optical transmission system
04/22/2004WO2003104849A3 Optical ring network with nodes and method
04/22/2004WO2003043178A3 Frequency agile spread waveform generator and method and pre-processor apparatus and method
04/22/2004WO2003041281A3 Re-configurable dispersion compensation module (rdcm)
04/22/2004US20040078150 Techniques to manufacture optical signal transmitters
04/22/2004US20040077312 Infrared transceiver module for a wider working range
04/22/2004US20040076440 Transmitter and precoder for optical MSK signals
04/22/2004US20040076439 Optical transmission system
04/22/2004US20040076438 Optical communication boards including power control function and system having the boards
04/22/2004US20040076437 Two stage optical amplifier
04/22/2004US20040076434 Optical distribution network for RF and other analog signals
04/22/2004US20040076433 Optical transmission system for frequency-multiplexed signal
04/22/2004US20040076431 Method and electro-optical circuit arrangement for line protection in a wdm data transmission link
04/22/2004US20040076430 Method and system for handling optical signals
04/22/2004US20040076429 Network component for an optical network comprising an emergency operation function, especially for an optical network in ring topology
04/22/2004US20040076428 Form existing fibers into a fibre channel-arbitrated loop
04/22/2004US20040076427 Optical protection switching using 2 by 2 switching functions
04/22/2004US20040076426 Two-fiber optical ring network
04/22/2004US20040076388 Transmission apparatus using a plastic fiber
04/22/2004US20040076373 Optical pulse regenerating transmission lines
04/22/2004US20040076371 Lossless optical divider/combiner with pump diversion for scalable optical networks
04/22/2004US20040076360 Integrated circuit that provides access to an output node of a filter having an adjustable bandwidth
04/22/2004US20040076193 Apparatus and method for data communication
04/22/2004US20040076163 Optical virtual local area network
04/22/2004US20040076119 Transceiver module and integrated circuit with dual eye openers and integrated loopback and bit error rate testing
04/22/2004US20040076113 Transceiver module and integrated circuit with multi-rate eye openers and bypass
04/22/2004US20040075962 Universal optically isolated input circuit
04/22/2004US20040075883 Ultrashort-pulse source with controllable wavelength output
04/22/2004US20040075880 Optical retro-reflective apparatus with modulation capability
04/22/2004US20040075824 Optical flow monitor
04/22/2004US20040075509 Phase shifted binary transmission encoder, a phase modulator, and an optical network element for encoding phase shifted binary transmission
04/22/2004US20040075484 Current pulse receiving circuit
04/22/2004DE10296519T5 Optische Einrichtung, Lichtwellenpfad-Umschalteinrichtung und Lichtwellenpfad-Umschaltverfahren An optical device, optical path switcher and optical path switching method
04/22/2004DE10245495A1 Einrichtung zum Richten elektromagnetischer Strahlung Means for directing electromagnetic radiation
04/22/2004CA2501372A1 Method and arrangement for determining signal degradations in the presence of signal distortions
04/21/2004EP1411744A2 Optical multi-ring network for burst data communication
04/21/2004EP1411671A1 DEVICE GROUPING SYSTEM, RECEPTION APPARATUS, MANAGEMENT APPARATUS, DEVICE GROUPING METHOD, PROGRAM, AND MEDIUM
04/21/2004EP1411666A2 Two-fiber optical ring network
04/21/2004EP1411659A1 Apparatus and method for regeneration of optical signals
04/21/2004EP1411658A2 Optical MSK transmitter
04/21/2004EP1411656A2 Optical duobinary carrier-suppressed RZ transmission system
04/21/2004EP1411655A2 Self-seeded Fabry-Perot laser device for wavelength division multiplexing system
04/21/2004EP1411654A1 Optical MSK transmitter