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)
10/2004
10/21/2004US20040208528 Method for automatically provisioning a network element
10/21/2004US20040208527 Performance monitoring of multiple channels in an automatic protection switched network
10/21/2004US20040208526 Optical transmitter and receiver
10/21/2004US20040208525 SRS-immune optical performance monitoring
10/21/2004US20040208524 Apparatus and method for controlling an optical transceiver
10/21/2004US20040208523 Swept frequency reflectometry using an optical signal with sinusoidal modulation
10/21/2004US20040208521 Main signal controlling apparatus and method in a WDM optical communications system
10/21/2004US20040208520 Optical signaling to share active channel information
10/21/2004US20040208519 Method and apparatus for automatically controlling optical signal power in optical transmission systems
10/21/2004US20040208517 Variable clamp equalization method and apparatus
10/21/2004US20040208516 Systems and methods for launch power pre-emphasis
10/21/2004US20040208515 Signal to noise ratio measurement in a communications system
10/21/2004US20040208514 Auto-setting and optimization of EAM with optical line systems
10/21/2004US20040208513 Management of optical links using power level information
10/21/2004US20040208512 Sharing of power level information to support optical communications
10/21/2004US20040208511 Power level management in optical networks
10/21/2004US20040208510 Optical transmission equipment
10/21/2004US20040208508 Optical signal reception control circuit and method for controlling reception of optical signal
10/21/2004US20040208507 Network diagnostic tool for an optical transport network
10/21/2004US20040208505 Method and system for testing during operation of an open ring optical network
10/21/2004US20040208504 Wavelength Exerciser
10/21/2004US20040208503 Systems and methods for detecting faults in optical communication systems
10/21/2004US20040208502 WDM device, client device, network, system and method for allocating wavelength of WDM to a client signal
10/21/2004US20040208501 Network diagnostic tool for an optical transport network
10/21/2004US20040208453 Optical backplane array connector
10/21/2004US20040208439 Method and apparatus for self-aligning photonic interconnections
10/21/2004US20040208436 Forming optical signals having soliton pulses with certain spectral band characteristics
10/21/2004US20040208435 Method and apparatus for monitoring fiber optic communications
10/21/2004US20040208434 Apparatus and method of compensating for wavelength dispersion of optical transmission line
10/21/2004US20040208433 Apparatus and method for wavelength assignment in WDM optical ring networks
10/21/2004US20040208432 Optical performance monitoring scheme
10/21/2004US20040208430 System and method for communicating data in a network using backchannel signaling
10/21/2004US20040208429 High-bit-rate long-haul fiber optic communication system techniques and arrangements
10/21/2004US20040208428 Wavelength-multiplexed narrow-bandwidth optical transmitter and wavelength-multiplexed vestigial-side-band optical transmitter
10/21/2004US20040208427 Infrared communications link with attachment configuration
10/21/2004US20040208420 Optical switching device
10/21/2004US20040208419 Methods and devices to minimize the optical loss when multiplexing optical signals from a plurality of tunable laser sources
10/21/2004US20040208411 Optical signal transmission transducer
10/21/2004US20040208272 Methods and systems for aligning and maintaining alignment of point-to-point transceivers in a network
10/21/2004US20040208266 Method and apparatus for reducing interference in an optical data stream using data-independent equalization
10/21/2004US20040208211 Optical communication module
10/21/2004US20040208207 Method and apparatus for directly modulating a laser diode using multi-stage driver circuitry
10/21/2004US20040207988 Compact optical transceiver module having housing with improved coupling mechanism and assembly method thereof
10/21/2004US20040207926 Structure and apparatus for a very short haul, free space, and fiber optic interconnect and data link
10/21/2004US20040207911 Optical fiber amplifier and dispersion compensating fiber module for optical fiber amplifier
10/21/2004US20040207910 Variable gain optical amplifier and control method
10/21/2004US20040207907 Semiconductor optical amplifier based Raman pump
10/21/2004US20040207906 Optical 2R/3R regeneration
10/21/2004US20040207902 Method for polarization mode dispersion compensation
10/21/2004US20040207900 Method for compensating polarization mode dispersion, polarization mode dispersion compensator and optical fiber communication system
10/21/2004US20040207896 Optical transmitter, optical receiver, and manufacturing method of optical device
10/21/2004US20040207895 Calibration method to maximize field of view in an optical wireless link
10/21/2004US20040207535 System and method for learning macro routines in a remote control
10/21/2004US20040206888 System for responding to a superposition of quantum states
10/21/2004DE102004015218A1 Drahtloser Signaltransmitter in einer Abschlusskappe eines Bildschirmmoduls Wireless signal transmitter in an end cap of a screen module
10/21/2004CA2521114A1 Optical communication system having optical amplification function
10/20/2004EP1469622A1 Semiconductor optical amplifier based Raman pump
10/20/2004EP1469621A1 Raman amplifying device and method for pump modulation
10/20/2004EP1469620A2 An optical signal transmission transducer
10/20/2004EP1469619A2 Wireless power transmission
10/20/2004EP1469617A2 Wireless power and data transmission
10/20/2004EP1468515A2 Methods and apparatuses to provide a wdm passive optical network with wavelength-locked wdm light sources
10/20/2004EP1468513A2 Dispersion compensation in optical communications systems
10/20/2004EP1468512A1 Optical transmission system with raman amplifiers comprising a supervisory system
10/20/2004EP1468511A2 System and method for communicating with an appliance through a light emitting diode
10/20/2004EP1468510A2 Appliance communication method and apparatus
10/20/2004EP1467646A1 Appliance control methods and apparatus
10/20/2004CN2650398Y Extraction structure for optical fiber transceiving module set
10/20/2004CN2650169Y 光隔离器 Optical isolator
10/20/2004CN2650164Y Adjustable optical attenuator
10/20/2004CN2650163Y Structure-improved optical fiber connector socket
10/20/2004CN2650162Y VF-45 special optical fiber channel detector
10/20/2004CN2650159Y Tuneable optical fiber grating division-plugging multiplexer
10/20/2004CN1539214A Optical transmission system with variable network limits
10/20/2004CN1538654A Mixed type dynamic light gain equilibrium method used in WDM system
10/20/2004CN1538645A Remote monitoring system
10/20/2004CN1538642A Device of full light network reusing segment shared protection
10/20/2004CN1538641A 光信号传输换能器 Optical signal transmission transducer
10/20/2004CN1172217C Polarized light interference method for comb-shaped sub-wave
10/20/2004CN1172216C Optical filter
10/19/2004US6807379 Device for regenerating optical signs
10/19/2004US6807378 RZ signal optical regenerator limiting noise in “zeros”
10/19/2004US6807376 Gain equalizer which includes a plurality of optical filters for equalizing the gain of an optical amplifier
10/19/2004US6807375 Free-space optical communications with partially coherent beams
10/19/2004US6807374 Mobile communication system
10/19/2004US6807373 Multiband Raman amplifier
10/19/2004US6807370 Optical transmission system
10/19/2004US6807355 Subsurface fibre optic cable network installation
10/19/2004US6807351 L-band dispersion compensating fiber and transmission system including same
10/19/2004US6807335 Wavelength characteristic variable apparatus
10/19/2004US6807322 PMD compensating apparatus for controlling polarization controller based on detection of magnitude of waveform distortion
10/19/2004US6807321 Apparatus and method for measurement and adaptive control of polarization mode dispersion in optical fiber transmission systems
10/19/2004US6807209 Controlling the extinction ratio of optical transmitters
10/19/2004US6807001 Auto shutdown for distributed raman amplifiers on optical communication systems
10/19/2004US6806998 Raman amplifier with high power distribution bypass
10/19/2004CA2327709C Improved distortion analyzer for compensation apparatus of first-order polarization mode dispersion (pmd)
10/14/2004WO2004088893A1 Optical branching device
10/14/2004WO2004088884A1 Optical system and method for monitoring variable in rotating member
10/14/2004WO2004088883A1 Electrical domain compensation of non-linear effects in an optical communications system
10/14/2004WO2004088882A1 System for wireless optical communication and a device for actuating an avalanche photodiode in an optical receiver