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)
03/2004
03/31/2004EP0847635B1 Optical satellite feederlinks
03/31/2004CN2609285Y 无线主动红外防盗报警窗 Wireless active infrared burglar alarm window
03/31/2004CN2609002Y 闭路环行器 Closed circulator
03/31/2004CN2609001Y Three-port circulator
03/31/2004CN1486550A Optical broadband transmission device and distribution method
03/31/2004CN1486549A Fiber optic system including digital controller for fiber optic tunable filter and associated methods
03/31/2004CN1486547A Optical hinge apparatus
03/31/2004CN1486084A Method for implementing data communication in cable television network management system
03/31/2004CN1486011A Apparatus and method for in-line dispersion compensating of mixing rate system
03/31/2004CN1485996A Method for avoiding K bytes clobber misinformation in multiplex section protocol
03/31/2004CN1485654A A time integral sound and optical correlator
03/31/2004CN1144409C Optical transmission system and its method
03/31/2004CN1144398C Ranging method based on wideband passive optical fiber network
03/31/2004CN1144080C 光环行器 Circulator
03/30/2004US6715018 Computer including installable and removable cards, optical interconnection between cards, and method of assembling a computer
03/30/2004US6714742 Polarization-division multiplexing based on power encoding of different polarization channels
03/30/2004US6714741 Method and apparatus for monitoring an optical WDM network
03/30/2004US6714740 Optical network and switch control method for use in the optical network
03/30/2004US6714739 Optical transmission systems and optical receivers and receiving methods for use therein
03/30/2004US6714715 Optical device, system and method for detecting a condition in an optical device
03/30/2004US6714699 Multi-wavelength non-laser light source
03/30/2004US6714697 Optical switching apparatus and optical switching method
03/30/2004US6714598 Burst-mode combining of reverse path radio frequency signals
03/30/2004US6714394 Electric power feeding line switching method, electric power feeding line switching apparatus and electric power feeding line switching system
03/30/2004US6714345 Semiconductor optical amplifier providing high gain, high power and low noise figure
03/30/2004US6714343 Power stabilization in an optical communication system
03/30/2004US6714342 Low-noise distributed Raman amplifier using bi-directional pumping using multiple Raman orders
03/30/2004US6714336 Packaged micromirror assembly with in-package mirror position feedback
03/30/2004US6714063 Current pulse receiving circuit
03/30/2004US6713749 Monolithic loss-of-signal detect circuitry
03/30/2004CA2334256C Single-photon-emission apparatus
03/30/2004CA2310443C Wavelength stabilized, tunable optical transmitter with high smsr
03/25/2004WO2004025903A2 Methods for dynamic bandwidth allocation and queue management in ethernet passive optical networks
03/25/2004WO2004025880A1 Optical radio apparatus
03/25/2004WO2004025879A1 Optical radio communication system, optical radio communication apparatus, optical radio communication method, and program
03/25/2004WO2004025878A1 Coded polarization-dependent analyzing
03/25/2004WO2004025877A1 Communication system providing hybrid optical/wireless communications and related methods
03/25/2004WO2004025394A2 Operations method in an ethernet passive optical network that includes a network unit with multiple entities
03/25/2004WO2004025345A1 Medium converter
03/25/2004WO2004025330A2 Optical cross connect apparatus and method
03/25/2004WO2004025242A1 Multi-signal determination of polarization dependent characteristic
03/25/2004WO2004018960A3 Otdr arrangement for detecting faults in an optical transmission system on a span by span basis
03/25/2004WO2004015451A3 Appartus and method for free-space optical communication
03/25/2004WO2004008666A3 Distributed raman amplifier for optical network and method
03/25/2004WO2004002023A3 Transceiver module and integrated circuit with dual eye openers
03/25/2004WO2004002001A3 Ultra-wideband communication through a wire medium
03/25/2004WO2004001994A3 Ultra-wideband communication through a wire network
03/25/2004WO2003103203A3 Method and apparatus for monitoring the power of a multi-wavelength optical signal
03/25/2004WO2003098845B1 Infrared connection device
03/25/2004WO2003058855A3 Method for polarization mode dispersion compensation
03/25/2004WO2003050980A3 Wavelength division multiplexing optical performance monitors
03/25/2004WO2003032547A3 Transmitter photonic integrated circuit
03/25/2004WO2003032021A3 TRANSMITTER PHOTONIC INTEGRATED CIRCUITS (TxPIC) AND OPTICAL TRANSPORT NETWORKS EMPLOYING TxPICs
03/25/2004WO2002067018A3 Agile multi-beam free-space optical communication apparatus
03/25/2004US20040059915 Calling from a radiotelephone terminal
03/25/2004US20040057735 Optical transmitter using highly nonlinear fiber and method
03/25/2004US20040057734 Method and system for reducing transmission penalties associated with ghost pulses
03/25/2004US20040057733 Duobinary pulse shaping for optical transmission systems employing pulse amplitude modulation techniques
03/25/2004US20040057732 Light amplifying apparatus for wavelength division multiplexing capable for determining change in number of multiplexed wavelength signals
03/25/2004US20040057731 Optical transmission apparatus
03/25/2004US20040057730 Control processor for use with a transceiver in an optical wireless network
03/25/2004US20040057729 Analogue maintenance detection
03/25/2004US20040057728 Optical subscriber network system for receiving broadcast/communication signals
03/25/2004US20040057725 Method and apparatus for optimizing decision level of signal output from optical receiver
03/25/2004US20040057724 Maintaining quality of packet traffic in optical network when a failure of an optical link occurs
03/25/2004US20040057682 All fiber low noise supercontinuum source
03/25/2004US20040057669 Optical line-of-sight inter-board data transfer
03/25/2004US20040057662 Optically-connected system for exchanging data among industrial automation devices
03/25/2004US20040057661 Optical transmission system
03/25/2004US20040057115 Optical device
03/25/2004US20040056562 Remote control and power system
03/25/2004US20040056181 DC offset cancellation circuit, differential amplification circuit with DC offset cancellation circuit, photo-electric pulse conversion circuit, pulse shaping circuit, and pulse generation circuit
03/25/2004DE10339917A1 Optisches Übertragungssystem The optical transmission system
03/25/2004DE10252450A1 Submarine optical wave-guide cable for data transmission has multiple optical wave-guides and an amplifier fitted between optical wave-guide ends aligned to each other
03/25/2004DE10242915A1 Reducing optical polarization multiplex signal degradation involves sending signals with null phase difference so modulation stage limits differ to maximum extent from other signals' evaluation times
03/25/2004DE10241848A1 Optical or electrical signal sequence detection method for optical or electrical transmission system providing visual diagram of signal sequence
03/25/2004DE10239305A1 Verfahren zur Ermittlung der Signal-Rauschabstände eines optischen SignalsDemultiplexierung Method for determining the signal-to-noise ratios of an optical SignalsDemultiplexierung
03/25/2004DE10238044A1 Electrical data signal transmission device using laser transmitter with surface-emitting laser controlled directly by logic circuit
03/25/2004DE10117175B4 Lichtwellenleiter-Übertragungssystem Fiber optic transmission system
03/25/2004CA2499061A1 Optical cross connect apparatus and method
03/25/2004CA2442375A1 Improvements in and relating to analogue maintenance detection
03/24/2004EP1401166A1 Method and Device for transmitting speech and music data using return-to-zero-signals
03/24/2004EP1401129A2 Pulse shaping of optical duobinary signals
03/24/2004EP1401128A2 Optical fibre communication system
03/24/2004EP1401127A2 Modulation apparatus
03/24/2004EP1401126A2 Optical signals generator for wavelength division multiplexing optical communication system
03/24/2004EP1401125A2 Optical wireless communication system
03/24/2004EP1401124A2 Optical subscriber network system for receiving broadcast/communication signals
03/24/2004EP1400141A1 Network and method for connecting antennas to base stations in a wireless communication network using space diversity
03/24/2004EP1400102A2 Uncooled laser generation of narrowcast catv signal
03/24/2004EP1400047A2 Wavelength division multiplexed device
03/24/2004EP1400041A2 Optical communication system
03/24/2004EP1400040A1 Optical communication device and system
03/24/2004EP1399778A2 Apparatus for separating and/or combining optical signals, and methods of making and operating it
03/24/2004CN2607585Y Containing body for duplex optical transceiving module
03/24/2004CN2607584Y Optical sub-module structure for optical fibre transceiver
03/24/2004CN1484933A Point-to-multipoint passive optical network that utilizes variable-length packets and variable-length upsteam tine slots
03/24/2004CN1484898A Point-to-multipoint passive optica network that utilizes variable length packets
03/24/2004CN1484897A Control scheme for long wavelength channels in wideband WDM optical fiber transmission system
03/24/2004CN1484896A Maintaining quality of packet traffic in optical network when fuilure of optical link occurs