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)
08/2003
08/13/2003EP1335509A2 Optical transmission circuit
08/13/2003EP1335508A1 Safety procedure for optical fiber systems and according safety interface to carry out such safety procedure
08/13/2003EP1335507A1 Insulating method and device to obtain an excellent galvanic insulation between two low voltage electronic devices in an integrated opto-isolator
08/13/2003EP1335316A2 Optoelectronic device
08/13/2003EP1335239A1 Conversion between optical and radio frequency signals
08/13/2003EP1335223A1 Optical transmission system
08/13/2003EP1334630A1 Communications network, in particular for telephony, with base stations connected to remote transceiver units
08/13/2003EP1334576A2 Cellular base station with remote antenna
08/13/2003EP1334389A1 Device for the transmission of optical signals with improved transmission properties
08/13/2003EP1116305B1 Removable connecting system
08/13/2003EP0906672B1 Low power microcellular wireless drop interactive network
08/13/2003CN2566542Y Wavelength-division multiplex optical communication transmission device with light amplification automatic gain adjustment
08/13/2003CN1436385A Method for controlling performance of optical amplifier
08/13/2003CN1435979A Tream source apparatus and display apparatus interface system and method
08/13/2003CN1435965A Distributed wavelength multiplexing multi-walength optical network system
08/13/2003CN1435957A Digital regulated light transmission module and regulating method thereof
08/13/2003CN1435922A Variable wavelenght output optic fibre laser
08/13/2003CN1118159C 100 Mbps optical fibre transceiver for computer Ethernet communication
08/12/2003US6606447 Optical attenuator including dual control loops
08/12/2003US6606443 Optical transmission device
08/12/2003US6606437 Optical transmission line, negative dispersion optical fiber used for the optical transmission line, and optical transmission system comprising optical transmission line
08/12/2003US6606430 Passive optical network with analog distribution
08/12/2003US6606351 Ingress protection in a communication system with orthogonal carriers
08/12/2003US6606191 Method for controlling performance of optical amplifiers
08/12/2003US6606189 Light amplifier and light amplifying method
08/12/2003US6606188 Optical repeater using raman amplification, wavelength division multiplexed light transmission system, excitation light supply method and excitation light control method for raman amplification
08/12/2003US6606187 Nonlinear fiber amplifiers used for a 1430-1530 nm low-loss window in optical fibers
08/12/2003US6606178 Method and system to reduce FWM penalty in NRZ WDM systems
08/12/2003US6606177 Driver circuit and optical-transmission module
08/12/2003US6606176 Modulation format with low sensitivity to fiber nonlinearity
08/12/2003US6606175 Multi-segment light-emitting diode
08/12/2003US6606174 Optical semiconductor device
08/12/2003US6606050 Remote control device having classified channels
08/12/2003US6606028 Apparatus and method for supervision
08/12/2003US6604872 Method and apparatus for improving spectral efficiency in fiber-optic communication systems
08/12/2003US6604871 Method and apparatus for compensating for polarization mode dispersion (PMD) using a Mach-Zender interferometer
08/12/2003US6604870 Method and an amplifier unit for the transmission of data signals via an optical fiber
08/12/2003CA2216401C Optical network and arrangement and method in such network
08/12/2003CA2190915C High efficiency polarization diversity receiver system
08/07/2003WO2003065758A1 Apparatus, system and method for optical packet switching using frequency header
08/07/2003WO2003065745A1 Method and apparatus for browsing objects in a user's surroundings
08/07/2003WO2003065622A1 Disperse equalizer and disperse equalizing method
08/07/2003WO2003065621A1 A method for decreasing and compensating the transmission loss at a wavelength-division-multiplexed passive optical network and an apparatus therefor
08/07/2003WO2003065620A1 Optical transmission module with digital adjustment and the adjusting method
08/07/2003WO2003065619A2 Optical time domain reflectometry
08/07/2003WO2003065523A1 Laser transmitter and method for aligning laser light of the laser transmitter
08/07/2003WO2003065385A2 Hybrid electro-optic cable for free space laser antennas
08/07/2003WO2003065117A1 Entanglement photon pair generator
08/07/2003WO2003052975A3 Method to deskew or skew optical channels
08/07/2003WO2003046623A3 Waveguide optical fiber for amplification within s-band optical range
08/07/2003WO2003034624A3 Method for switching and routing large bandwidth continuous data streams form a centralized location
08/07/2003WO2002093795A3 Dispersion-managed cable for raman-assisted transmission
08/07/2003WO2001095542A3 Athermalization and pressure desensitization of diffraction grating based spectrometer devices
08/07/2003US20030147657 Nano-scale resolution optical pickup for reading/writing ultra-high density data on CD and DVD data storage elements
08/07/2003US20030147656 Optical transmitter and optical fiber transmission system having the same
08/07/2003US20030147654 Idle-pattern output control circuit used in a Gigabit Ethernet-passive optical network
08/07/2003US20030147650 Interfacing system for stream source apparatus and display apparatus and interfacing method thereof
08/07/2003US20030147648 Arrangement for producing a wavelength-multiplex signal having small interchannel spaces
08/07/2003US20030147647 Optical multiplex communication system, optical transmission apparatus, and control method of optical multiplex communication
08/07/2003US20030147646 Combined phase and intensity modulation in optical communication systems
08/07/2003US20030147610 Optical fiber, optical transmission line and optical communications system
08/07/2003US20030147586 Compensation of modal dispersion in optical waveguides
08/07/2003US20030147581 Optical device
08/07/2003US20030147577 Optical transmission circuit
08/07/2003US20030147428 Limiting amplifier modulator driver
08/07/2003US20030147138 Optical systems including add drop devices and methods
08/07/2003US20030147127 Amplitude balancing for multilevel signal transmission
08/07/2003US20030147126 Method and device for regulating a medium with an amplifying effect, especially a fiber optical waveguide
08/07/2003US20030147125 Gain control in optical amplifiers
08/07/2003US20030147124 Raman amplification method, raman amplification pumping unit, and WDM optical communication system
08/07/2003US20030147123 Optical amplifier, excitation light source control method for use in optical amplifier, and optical amplifier control method
08/07/2003US20030147116 Method and apparatus for pulse generation and adaptive pulse generation for optical communications
08/07/2003US20030147114 Method and apparatus for synchronizing a pulse carver and a data modulator for optical telecommunication
08/07/2003US20030147067 Measuring response characteristics of an optical component
08/07/2003US20030146370 Segmented photodetectors for detection and compensation of modal dispersion in optical waveguides
08/06/2003EP1333612A2 Idle-pattern output control circuit in a gigabit ethernet-passive optical network
08/06/2003EP1333608A2 Data transmission system and data transmission method for cable television
08/06/2003EP1333603A2 Optical coaxial hybrid transmission system
08/06/2003EP1332570A1 Network comprising converters between electrical and optical signals
08/06/2003EP1332390A2 Bit-rate and format insensitive all-optical circuit for reshaping, regeneration and retiming of optical pulse streams
08/06/2003EP1332387A2 Negative-dispersion optical fiber and optical transmission line incorporating the same
08/06/2003EP1110309B1 Optical amplifiers and optical transmission line
08/06/2003EP1040607B1 A method and a system for coding wdm signals
08/06/2003EP0862818B1 Submillimeter indirect heterodyne receiver and method
08/06/2003CN1435070A Four-fiber ring optical cross-connect system using 4†ù4 switch matrices
08/06/2003CN1435022A Method for preempting the priority of the lowest priority cable when the highest proiority cable is failure
08/06/2003CN1435019A Method of analog modulation and optical emitter using this method
08/06/2003CN1435018A Method and device for locking the wavelength of optical signal
08/06/2003CN1435017A Low noise optical amplifier and optical communication system using same
08/06/2003CN1434995A Wavelength selectable fiber laser system
08/06/2003CN1434584A PON system imitator for testing receive module
08/06/2003CN1434583A Bragg grating with new sampling structure for compensating dispersion and polarization mode dispersion
08/06/2003CN1434582A Infraved ray transmission device and method
08/06/2003CN1434581A Satellite laser communication analog device
08/06/2003CN1434580A Method for respectively treating diffevent state grade subscriber in ethernet passive optical network
08/06/2003CN1434326A Period polarized magnesium doped lithium niobate all light switch and preparation process thereof
08/06/2003CN1434324A Guided wave resonance based polarization method
08/06/2003CN1434310A Optical packet-switched networks node structure based on adjustable laser
08/06/2003CN1117435C Laser and microwave hydrid communication method and system
08/05/2003USH2075 Restorable architectures for fiber-based broadband local access networks
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