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)
10/2012
10/11/2012US20120257889 Communication apparatus with transmitted rate detecting function and method thereof
10/11/2012US20120257888 Opu frame generating device and opu frame test device
10/11/2012US20120257886 Method and device for implementing shared mesh protection and optical network system
10/11/2012DE102011016083A1 Method for transmitting modulated radio frequency (RF) signals from transmitting station through RF-proof wall to receiving station, involves transforming data signals into waveform to overcome wall by overlay/Heterodyn transponder
10/11/2012DE102011016082A1 Method for adapting operating frequencies of wireless unit e.g. passive superposition transponder used in radio frequency identification application, involves using signal with frequency by units for forming signal overlaps or mixed signals
10/11/2012DE102011006986A1 Method for transmitting e.g. break-down alarm over optical clearance track during e.g. radio traffic monitoring, involves adjusting modulation value of emergency signal so that illuminated light does not undergo any visible change
10/11/2012DE102007019345B9 Verfahren und Einrichtung zur Überwachung eines optischen Verstärkers, insbesondere eines optischen Faserverstärkers Method and apparatus for monitoring an optical amplifier, in particular an optical fiber amplifier
10/10/2012EP2509237A1 Optical transmission device and optical transmission system
10/10/2012EP2509173A1 Beat signal generating device for use in a terahertz system, terahertz system and use of a beat signal generating device
10/10/2012EP2507927A1 Method and device for conveying data across a shared medium
10/10/2012EP2507926A1 Method for processing traffic in an optical network and optical network component
10/10/2012EP2507925A1 Improvements in optical networks
10/10/2012EP2507923A1 Optical amplifier system and method
10/10/2012EP2507922A2 Apparatus and method for controlling brightness of light sources used for data transmission
10/10/2012EP2507912A2 Circuit with passive components for the ultra-quick control of an optoelectronic device
10/10/2012EP2507660A1 Fiber optic rotary joints, methods practiced thereby, and fiber optic devices
10/10/2012CN202488481U Router and optical communication device
10/10/2012CN202488462U 1*9 single fiber bidirectional optical module with serial digital interface (SDI) function
10/10/2012CN202488460U Compact optical network base station based on network management module
10/10/2012CN202488459U Optical communication receiving device based on USB (universal serial bus)
10/10/2012CN102725978A Improvements in optical networks
10/10/2012CN102725977A Optical signal compensation apparatus
10/10/2012CN102725976A Optical fiber testing method, apparatus and passive optical network system
10/10/2012CN102725973A Optical power control method and apparatus
10/10/2012CN102723997A Light signal emission terminal
10/10/2012CN102723996A Single fiber bi-directional optical component, optical module and optical network device
10/10/2012CN102723995A Active light module controller
10/10/2012CN102723994A Data transmission method, device and system
10/10/2012CN102723992A Visible light signal transmission device based on keying modulation
10/10/2012CN102723990A Pre-alarming method and pre-alarming device of optical cable problems
10/10/2012CN102723989A Grading warning method and grading warning device for optical cable problems
10/10/2012CN102723988A Control method and communication device of optical module
10/10/2012CN102723987A Visible light signal sending device based on audio and video
10/10/2012CN102723986A Underwater light-emitting diode (LED) communication system based on universal serial bus (USB) interface
10/10/2012CN102723985A Bandwidth optimization and design method for optical frequency code chips of spectral amplitude encoding/decoding system
10/10/2012CN102723984A Data transmission device based on plane reflection in computer tomoscan imaging equipment
10/10/2012CN102723605A Ku/ka dual-band double-slit panel antenna and application of same to portable real-time satellite communication system
10/10/2012CN102420657B Light emission module laser control circuit of front end optical communication platform of wired television
10/10/2012CN101785159B Transmitter, receiver, transceiver, transmission control method, reception control method, optical transmission module, and electronic device
10/10/2012CN101771464B Optical signal light-to-dark ratio monitoring device and method
10/10/2012CN101496318B Method and arrangements for determining the optical signal-to-noise ratio for an optical transmission system
10/10/2012CN101490984B Reducing crosstalk in free-space optical communications
10/10/2012CN101296035B Monitoring system, optical transmitting/receiving device and monitoring level setting method
10/10/2012CN101252391B Transmission system and system startup method
10/09/2012US8285155 Optical receiver for the WDM system and method to control the same
10/09/2012US8285154 System and method for multi-rate, high-sensitivity clock and data recovery with adjustable decision threshold, RF input, and optical-to-electrical conversion
10/09/2012US8285152 DQPSK optical receiver
10/09/2012US8285151 Method and system for hybrid integrated 1XN DWDM transmitter
10/09/2012US8285150 Method and system for integrated DWDM transmitters
10/09/2012US8285149 Method and system for integrated DWDM transmitters
10/09/2012US8285148 Spectral efficiency estimation in coherent receivers
10/09/2012US8285147 Bulk modulation of multiple wavelengths for generation of CATV optical comb
10/09/2012US8285146 Optical rotary joints, methods of mounting same in a properly-aligned manner, and optical reflector assemblies for use therein
10/09/2012US8285141 Apparatus, system, and method for asymmetrical and dynamic routing
10/09/2012US8285139 Method, system, and apparatus for managing alarms in long-reach passive optical network system
10/09/2012US8284479 Optical amplifier card with pluggable pump laser modules
10/09/2012US8284391 Method and arrangement for measuring a signal power
10/09/2012US8283876 Circuit for driving an infrared transmitter LED with temperature compensation
10/09/2012CA2610498C Traffic preemption system communication method
10/09/2012CA2441173C Apparatus for providing timing jitter tolerant optical modulation of a first signal by a second signal
10/04/2012WO2012133978A1 Wavelength monitoring module for wavelength division multiplex optical communication
10/04/2012WO2012133977A1 Aggregation wavelength division multiplexing node module
10/04/2012WO2012133473A1 Wavelength dispersion pre-compensation optical communication system
10/04/2012WO2012133472A1 Optical transmitter and wavelength multiplexing transmission device and optical transmission method
10/04/2012WO2012132919A1 Photon detection circuit and photon detection method
10/04/2012WO2012132907A1 Optical waveguide circuit
10/04/2012WO2012132688A1 Optical transmission device
10/04/2012WO2012132374A1 Transmitter, receiver, transmission method, reception method and communication system
10/04/2012WO2012132112A1 Correction method, optical modulation system, and optical demodulation system
10/04/2012WO2012132103A1 Phase-compensation receiver
10/04/2012WO2012130275A1 Heterodyne optical spectrum analyzer
10/04/2012WO2012130146A1 Optical network unit detection method and device, and passive optical network system
10/04/2012WO2012130022A1 Ranging method and apparatus in nested pon
10/04/2012WO2012130001A1 Method, device and system for optical power debugging
10/04/2012WO2012129948A1 Optical signal control method, optical signal control system and optical backplane system
10/04/2012US20120251130 Thermal chirp compensation in a chirp managed laser
10/04/2012US20120251129 Optical modulator with linear response
10/04/2012US20120251128 Optical transmitter and method for optical signal waveform compensation
10/04/2012US20120251127 Frame mapping apparatus and frame mapping method
10/04/2012US20120251126 Optical Fibers With Tubular Optical Cores
10/04/2012US20120251125 Passband reflectometer
10/04/2012US20120251124 Transceiver for different vendor devices
10/04/2012US20120251123 Led light global positioning and routing communication system
10/04/2012US20120251116 Integrated optical-electronic interface in programmable integrated circuit device
10/04/2012US20120251113 Seamless configuration update for optical network unit in ethernet passive optical network
10/04/2012US20120251112 Method and system for coherent equalization of chromatic dispersion of optical signals in a fiber
10/04/2012US20120251108 Optical Communications Networks, Optical Line Terminations and Related Methods
10/04/2012US20120251105 Method and apparatus for providing a line of spots launch of light into an end of a multimode optical fiber
10/04/2012US20120251104 Modulator Control System and Method in an Optical Network
10/04/2012US20120251103 Wavelength Assignment In An Optical WDM Network
10/04/2012US20120251102 Light receiving circuit and bandwidth control method
10/04/2012US20120251101 Apparatus to Control Carrier Spacing in a Multi-Carrier Optical Transmitter
10/04/2012US20120251099 Multiplexer Lane Alignment for High-Speed Data Systems
10/04/2012US20120251098 Method, apparatus and system for high-speed transmission on fiber optic channel
10/04/2012US20120251097 Passive architectural optical distribution network
10/04/2012US20120249871 Hdmi-sfp+ adapter/extender
10/04/2012DE112010004476T5 Empfangsschaltung für sichtbares Licht Receiving circuit for visible light
10/04/2012DE102010034065B4 Verfahren und System zum Nachführen zweier Kommunikationsteilnehmer eines optischen Satelliten-Kommunikationssystems Method and system for tracking of two communication participants an optical satellite communication system
10/04/2012CA2831337A1 Method and apparatus for detecting optical network unit, and passive optical network system
10/03/2012EP2506477A2 Multiplexer and modulation arrangements for multi-carrier optical modems
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