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)
11/2012
11/21/2012CN101995606B Protection switching method for long-range passive optical network and extender box
11/21/2012CN101848115B Fault point positioning method and device of wavelength division path
11/21/2012CN101753217B Dispersion monitoring device and method, and dispersion compensation device
11/21/2012CN101753212B Detecting device and detecting method of time sequence parameters of small package pluggable transceiver
11/21/2012CN101695011B Method and device for high-speed multi-channel all-optical 3R regeneration
11/21/2012CN101599802B Optical receiver and method of detecting loss of optical signal of the optical receiver
11/21/2012CN101571613B Lead frame and manufacturing method of optical coupler
11/21/2012CN101494504B Automatic control optical module with constant average light power and extinction ratio based on singlechip
11/20/2012US8315529 Optical receiver
11/20/2012US8315528 Zero mean carrier recovery
11/20/2012US8315526 Misalignment tolerant free space optical transceiver
11/20/2012US8315524 Electro-optic conversion module, optic-electro conversion module and conversion methods thereof
11/20/2012US8315522 Wavelength routing system
11/20/2012US8315521 Peer-to-peer voice over internet protocol
11/20/2012US8315520 Method, system and apparatus for transmitting data
11/20/2012US8315519 Systems and methods for transmitting signals in communication networks
11/20/2012US8315518 Technique for transmitting an optical signal through an optical network
11/20/2012US8315517 Optical line monitoring apparatus and optical line monitoring method
11/20/2012US8315516 Signal transmitter, signal receiver, and signal transmission system
11/20/2012US8315161 Network design device and network design method
11/20/2012US8315150 Synchronized multipoint-to-point communication using orthogonal frequency division
11/20/2012US8314413 Optoelectronic device with a built-in fuse mechanism
11/15/2012WO2012154923A2 Optical receiver for amplitude-modulated signals
11/15/2012WO2012154703A1 Methods and systems for bulk dispersion monitoring
11/15/2012WO2012153940A2 Multi -wavelength optical transmitter module using vcsel, optical transceiver module and bidirectional optical transceiver
11/15/2012WO2012153857A1 Optical mixer, optical receiver, optical mixing method, and production method for optical mixer
11/15/2012WO2012153856A1 Coherent optical receiver and local light switching method
11/15/2012WO2012152987A1 Fully photonic wireless broadband base station
11/15/2012WO2012152182A1 Optical data broadcasting node, information receiver, broadcasting network system and method
11/15/2012WO2012152150A1 Hard rerouting processing method and device
11/15/2012WO2012152050A1 Optical network channel detection method and device
11/15/2012WO2012121850A3 Adjustable multiple-channel optical switch
11/15/2012WO2012104808A3 Quantum key distribution
11/15/2012US20120290244 Method and apparatus for compensating nonlinear damage
11/15/2012US20120288286 Optical receiver for amplitude-modulated signals
11/15/2012US20120288285 Variable dispersion compensator
11/15/2012US20120288284 Optical transmitter
11/15/2012US20120288283 Versatile remote control device and system
11/15/2012US20120288282 Fully photonic wireless broadband base station
11/15/2012US20120288281 Multi-drop optical communication
11/15/2012US20120288280 Method, apparatus, and system for time synchronization on passive optical network
11/15/2012US20120288279 Power control in an optical network unit
11/15/2012US20120288278 Passive optical splitter and passive optical network system
11/15/2012US20120288277 Transmission apparatus and method for serial and parallel channel interworking in optical transport network
11/15/2012US20120288276 Wdm optical transmission system and wavelength dispersion compensation method
11/15/2012US20120288275 Polarization and Differential-Group-Delay Insensitive Digital Timing Error Detection for Polarization-Multiplexed Coherent Optical Systems
11/15/2012US20120288273 Intelligent splitter monitor
11/15/2012DE102011101547A1 Method for communication of data and information between independent submarine vehicles e.g. submarine boats, by using telephones, involves terminating alteration of emission direction of signal if vehicle receives acknowledgment signal
11/14/2012EP2523369A1 Broadband base station comprising means for free space optical communications
11/14/2012EP2523368A1 Coherent light receiving apparatus, coherent light communications system employing same, and coherent light communications method
11/14/2012EP2523367A1 Optical transmission system
11/14/2012EP2523028A1 Optical switch and optical switch array
11/14/2012EP2522092A1 Method for activating a card, preferably in an already activated receptacle
11/14/2012EP2522088A1 Optical signal receiver
11/14/2012CN202535365U Noise suppression circuit of HFC reverse receiver
11/14/2012CN202535364U 1500 nm direct modulation optical transmitter
11/14/2012CN202535363U Parameter adjustable fiber optic transmitter for intercut television signals based on wavelength division multiplexing
11/14/2012CN202535362U Dual-machine link backup switching system of HFC reverse receiver
11/14/2012CN1976261B Integrated memory controller circuit for fiber optics transceiver
11/14/2012CN102783177A Data processing of an optical network element
11/14/2012CN102783106A Digital receiver and optical communication system that uses same
11/14/2012CN102783056A Bidirectional optical amplifier
11/14/2012CN102783055A Optical transmission system
11/14/2012CN102783054A Optical transmitter
11/14/2012CN102780936A Optical on-chip network system of non-blocking communication and communication method thereof
11/14/2012CN102780530A Optical fiber repeater system
11/14/2012CN102780527A Optical fiber device for long-distance transmission of S frequency band measurement and control signal
11/14/2012CN102780525A Burst received optical power detection device and method thereof
11/14/2012CN102780524A Signal emitter device based on electrodeless ultraviolet communication and method
11/14/2012CN101848033B Dual-rate receiving device
11/14/2012CN101611575B Method and arrangement for controlling a regenerator for data burst signals of a system comprising point-to-multipoint connections, and transmission system comprising point-to-multipoint connections
11/13/2012US8311741 Method and system for generating travel routes based on wireless coverage
11/13/2012US8311418 Optical communication apparatus and optical communication method
11/13/2012US8311417 Decision directed carrier phase estimation with a limiter for coherent dense wavelength division multiplexing systems
11/13/2012US8311416 Method and apparatus for generating optical duo binary signals with frequency chirp
11/13/2012US8311415 Frequency up-conversion system and method for the same
11/13/2012US8311414 Optical space transfer apparatus using image sensor
11/13/2012US8311413 High power efficiency optical-wireless transmitter
11/13/2012US8311411 Method and device for polarization of an optical radiation
11/13/2012US8311409 Signal switching module for optical network monitoring and fault locating
11/13/2012US8311408 Method and apparatus for end of life of small form-factor pluggable (SFP)
11/13/2012US8310749 Ultra-short high-power light pulse source
11/13/2012US8310373 System, a tool and a method for communicating with a faulted circuit indicator using a display
11/13/2012US8309902 Receiving circuit for optical communication
11/08/2012WO2012151362A2 Methods and apparatus for long-distance transmission across multi-mode fibers
11/08/2012WO2012151013A2 Optical device with reduced polarization sensitivity
11/08/2012WO2012150127A1 Optical receiver for multimode communications
11/08/2012WO2012149913A1 Optical signal receiving method and device
11/08/2012WO2012149810A1 Passive optical network system and downlink transmission method thereof
11/08/2012WO2012149804A1 Method, system and node device for establishing wavelength cross-connect
11/08/2012WO2012149773A1 Method, system and device for optical fibre link detection in passive optical network
11/08/2012WO2012149743A1 Signal transmitting method, signal receiving method, passive optical network device and system
11/08/2012WO2012149732A1 Optical device, optical device integration method and optical network system
11/08/2012WO2012149709A1 Method, apparatus and optical network system for detecting fault in optical distribution network
11/08/2012WO2012116406A3 Improvements in optical ofdm transmission
11/08/2012WO2012099760A3 Fiber optic cable systems and methods for forming the same
11/08/2012WO2012093830A3 Method for transceiving power and data using light source and device thereof
11/08/2012WO2012044149A8 System and method for quantum key distribution
11/08/2012US20120281992 Systems and methods for optical receiver decision threshold optimization
11/08/2012US20120281991 Optical receiver compensating input offset
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