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)
03/2003
03/06/2003US20030043440 Receiver and receiving method capable of detecting an eye aperture size formed by reception data signals
03/06/2003US20030043439 Control loop circuit and method therefor
03/06/2003US20030043438 Digital optical transmitter
03/06/2003US20030043437 Subliminal coherent phase shift keyed in-band signaling of network management information in wavelength division multiplexed fiber optic networks
03/06/2003US20030043436 Optical wireless communication device, laser light adjustment method, optical wireless communication system, management apparatus and a computer-readable medium storing a management program
03/06/2003US20030043435 Method and apparatus for re-acquisition after link disruption in an optical wireless link
03/06/2003US20030043434 Method for coupling an electrical device with an optical network for performing optical data transmission based on a high speed transmission rate
03/06/2003US20030043432 Optical transponder
03/06/2003US20030043431 Simultaneous demultiplexing and clock recovery of high-speed OTDM signals using a tandem electro-absorption modulator
03/06/2003US20030043428 Method and device for optical spectrum analyzer
03/06/2003US20030043427 Method of fast circuit recovery using local restoration
03/06/2003US20030043025 Apparatus for totaling/analyzing replies using infrared optical communication, and signal amplifier suitable for that apparatus
03/06/2003US20030042494 Opto-coupler based on integrated forward biased silicon diode LED
03/06/2003US20030042407 Variable optical attenuator using wavelength locked loop tuning
03/06/2003CA2458722A1 Optical switching device for wavelength division multiplex (wdm) telecommunications network
03/06/2003CA2458440A1 Optical communications systems, devices, and methods
03/06/2003CA2399514A1 Multiple grating optical waveguide monitor
03/05/2003EP1289215A1 Optical MSK modulator
03/05/2003EP1289213A2 Optoelectronic apparatus
03/05/2003EP1289212A1 Electro-optic interface for parallel data transmission
03/05/2003EP1289177A1 Polarisation dispersion compensation device in an optical transmission system
03/05/2003EP1289176A1 Method and apparatus for generating a predetermined polarisation mode dispersion
03/05/2003EP1289175A1 Control circuit for controlling the extinction ratio of a semiconductor laser
03/05/2003EP1289174A2 Measurement of polarization dependent loss in an optical transmission system
03/05/2003EP1289173A2 Optical wireless communication device
03/05/2003EP1289078A2 Optical transmission line and optical communication system
03/05/2003EP1288704A1 Optical crossbar switch based on switchable diffraction gratings
03/05/2003EP1288686A2 Optical transmission system
03/05/2003EP1287629A2 Remotely-interrogated high data rate free space laser communications link
03/05/2003EP1287622A2 Earphones and microphone (personal speaking device) that do not transmit or emit microwave radiation or any other dangerous radiation
03/05/2003EP1287394A2 Low loss fiber optic jumper with electronic presence detection
03/05/2003EP1173939B1 Light amplification apparatus with automatic monitoring and controls
03/05/2003EP1076947B1 Communications device retroreflecting incident modulated radiation
03/05/2003EP1034626B1 Method and apparatus for improved wireless optical communication
03/05/2003CN2539354Y Small optical fibre signal adapter
03/05/2003CN1401165A Dispersion compensator
03/05/2003CN1400764A Light transmission line
03/05/2003CN1400763A Method for implementing power equalization of dense wavelength divison multiplex system
03/05/2003CN1400750A Automatic gain balancing method and system in light transmission system of wavelength division multiplexing technology
03/05/2003CN1400749A New-type photon crystal wavelength division multiplex device
03/05/2003CN1102819C Network system as no arbitration control required, node device utilized in network system, and transmission control method for node device
03/05/2003CN1102808C Optical fiber amplifier with absorber
03/04/2003US6529674 Optical devices employing an optical thresholder
03/04/2003US6529672 Elimination of optical power limitation due to stimulated raman scattering in fiber optic links
03/04/2003US6529656 Bi-Directional add/drop multiplexer and bidirectional add/drop amplifier module for wavelength interleaved bidirectional networks
03/04/2003US6529648 Emulator and compensator for polarization mode dispersion
03/04/2003US6529601 Method and apparatus for polarization-insensitive quantum cryptography
03/04/2003US6529464 Low-birefringence optical fiber for use in an optical data storage system
03/04/2003US6529328 Optical filter
03/04/2003US6529326 Tunable optical filter
03/04/2003US6529316 Optical network equipment with optical channel monitor and dynamic spectral filter alarms
03/04/2003US6529307 Selective intensity modulation of channels in a multiplexed optical communication system
03/04/2003US6529306 Electromagnetic interference reduction method and apparatus
03/04/2003US6529305 Optical transmission apparatuses, methods, and systems
03/04/2003US6529304 Optical communication equipment and system
03/04/2003US6529303 Optical communications networks utilizing frequency division multiplexing
03/04/2003US6529302 Channel switching in wavelength encoded optical communication systems
03/04/2003US6529301 Optical switch and protocols for use therewith
03/04/2003US6529300 WDM optical network with passive pass-through at each node
03/04/2003US6529299 Method and apparatus for broadcasting optical signals within an optoelectric computer network
03/04/2003US6528777 Optical power meter derived from common-mode voltage of optical transimpedance amplifier
03/04/2003US6527458 Compact optical transceiver integrated module using silicon optical bench
03/04/2003US6527456 Cluster integration approach to optical transceiver arrays and fiber bundles
02/2003
02/28/2003CA2399899A1 Key security system
02/28/2003CA2399836A1 Optical transmission line and optical communication system
02/28/2003CA2390807A1 Method for coupling an electrical device with an optical network for performing optical data transmission based on a high speed transmission rate
02/27/2003WO2003017634A1 Method of establishing a subscriber connection and system utilising the method
02/27/2003WO2003017564A1 Optical receiver for receiving a plurality of input signals
02/27/2003WO2003017549A1 Systems and methods for reliable communication of link monitoring information in optical communications networks
02/27/2003WO2003017548A1 Modular optical system
02/27/2003WO2003017545A1 System, method, and computer program product for ethernet-passive optical networks
02/27/2003WO2003017538A1 Fiber optic sensor signal amplifier
02/27/2003WO2003017537A1 Optical amplifier
02/27/2003WO2003017536A1 Optical transmitter for transmitting a plurality of output signals
02/27/2003WO2003017535A1 Multi-channel optical receiver for processing tri-cell polarization diversity detector outputs
02/27/2003WO2003017534A2 Crosstalk cancellation
02/27/2003WO2003017533A2 Optical channel monitor utilizing multiple fabry-perot filter pass-bands
02/27/2003WO2003017532A1 Communication system and method to avoid laser-pulse broadening by multi-path effects
02/27/2003WO2003017531A1 Systems and methods for placing line terminating equipment of optical communications systems in customer points of presence
02/27/2003WO2003017439A2 Optical power transient control scheme for edfa amplifiers
02/27/2003WO2003016996A1 Raman-amplifying method
02/27/2003WO2003016959A2 Method for calibrating a free-space-coupled fiber-optic transmission system
02/27/2003WO2002032027A3 Bit-rate and format insensitive all-optical clock extraction circuit
02/27/2003WO2001095540A3 Device and method for optical performance monitoring in an optical communications network
02/27/2003WO2001093464A3 Device and method for monitoring signal direction in an optical communications network
02/27/2003US20030041279 Fault isolation technique for optical networks
02/27/2003US20030039438 Four wave mixing reduction in raman amplifiers
02/27/2003US20030039437 Multiplexer and demultiplexer for single mode optical fiber communication links
02/27/2003US20030039436 Optical pulse transmission lines
02/27/2003US20030039435 Optical transmission line and optical transmission system utilizing same
02/27/2003US20030039434 Wavelength separation optical device and multiple wavelength light transmission module
02/27/2003US20030039427 Polarization scrambler unit and multi-repeater transmission system incorporating the same
02/27/2003US20030039426 Device for compensating polarization dispersion in an optical transmission system
02/27/2003US20030039282 Integrated arrays of modulators and lasers on electronics
02/27/2003US20030039279 Wavelength monitor and laser module
02/27/2003US20030039032 Arrangement and method for producing a predeterminable polarization mode dispersion
02/27/2003US20030039024 Method and apparatus for optical wavelength conversion
02/27/2003US20030039015 Reconfigurable multi-channel transmitter for dense wavelength division multiplexing (DWDM) optical communications
02/27/2003US20030039014 Reconfigurable data communications system with a removable optical backplane connector
02/27/2003US20030039013 Dynamic dispersion compensation in high-speed optical transmission systems
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