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)
08/2012
08/16/2012US20120207482 Analog radio frequency transport over optical media using continuous optical phase modulation and noncoherent detection
08/16/2012US20120207481 Method and apparatus for connecting ac powered switches, current sensors and control devices via two way ir, fiber optic and light guide cables
08/16/2012US20120207478 Optical transceiver installing cpu and interface communicating with upper device by mdio protocol
08/16/2012US20120207476 Data transmission system and method
08/16/2012US20120207474 Plc-type demodulator and optical transmission system
08/16/2012US20120207473 Optical network and method for processing data in an optical network
08/16/2012US20120207472 Method and system for service clock transparent transmission in optical transport network
08/16/2012US20120207471 Method and System for Aligning Each Dispatching Service in Optical Transfer Networks
08/16/2012US20120207469 Span loss monitoring system, supervisory signal sending apparatus and supervisory signal receiving apparatus
08/16/2012US20120207468 Power-up of device via optical serial interface
08/16/2012US20120206794 High power parallel fiber arrays
08/16/2012US20120205521 Dual-polarization qpsk demodulator
08/16/2012DE102011018474A1 Method for separating orthogonal matrices for transforming optical networks into diagonal form, involves connecting optical waveguide with optical networks at ends
08/15/2012EP2487816A1 Method of optical data transmission using polarization division multiplexing
08/15/2012EP2487815A1 Method for generating and/or compensating for dispersion in optical long-distance transmission systems
08/15/2012EP2487814A1 Dual-polarization QPSK demodulator
08/15/2012EP2487813A1 Polarization de-multiplex for multilevel signals
08/15/2012EP2487811A1 Method and device for monitoring distortion in an optical network
08/15/2012EP2487810A1 Differential encoding optical transceiver device
08/15/2012EP2486679A2 Multichannel nonlinearity compensation in an optical communications link
08/15/2012EP2486678A1 Reference-based in-band osnr measurement on polarization-multiplexed signals
08/15/2012EP2486677A1 System and method for measuring optical signal-to-noise ratio
08/15/2012EP2347530B1 Infrared receiver circuit
08/15/2012EP2034635B1 A method for locating fiber event point and an optical network and network equipment thereof
08/15/2012EP1958355B1 A method and device for generating an electrical signal with a wide band arbitrary waveform
08/15/2012EP1680876B1 Method for establishing a subscriber connection and a system utilizing the method
08/15/2012EP1598972B1 Optical communication network system, wavelength routing apparatus, communication node, optical path managing method for use in optical cross connect apparatus, and apparatus for that method
08/15/2012CN202385110U Light-operated automatic gain control circuit
08/15/2012CN202385109U 4G communication based fiber repeater system
08/15/2012CN202385108U Optical module used for asymmetrical gigabit EPON (ethernet passive optical network) system
08/15/2012CN202385106U Unidirectionally isolated optical gate
08/15/2012CN202385105U 多功能网络工具 Multifunction Network Tools
08/15/2012CN202385104U Optical line integration test system
08/15/2012CN1881847B Integral unlocking and release mechanism with living hinge for small transceiver
08/15/2012CN102640439A ROADM systems and methods of operation
08/15/2012CN102640438A Roadm transponder aggregator systems and methods of operation
08/15/2012CN102640435A Optically coupled cochlear implant systems and methods
08/15/2012CN102640434A Apparatus and method for controlling brightness of light sources used for data transmission
08/15/2012CN102638735A Optical node device and business switching method thereof
08/15/2012CN102638430A DP (dual-polarization)-QPSK (quadrature phase shift keying) demodulator
08/15/2012CN102638314A Broadband radio frequency modulation circuit of laser
08/15/2012CN102638313A Device and method for generating return-to-zero code electro-optical modulation signal
08/15/2012CN102638309A Ultraviolet light communication method and transmitter
08/15/2012CN102638307A High-speed optical return-to-zero code duty cycle measuring method and device thereof
08/15/2012CN102638305A Optical single-side band modulation based optical device measuring method and optical single-side band modulation based optical device measuring device
08/15/2012CN102638302A Coherent light frequency comb based channelized broadband multi-frequency measuring system
08/15/2012CN102638301A Optical signal modulating and demodulating device and optical signal modulating and demodulating method for space optical communication
08/15/2012CN101887152B Single-fiber bidirectional symmetrical optical transceiver optical element for 10G-EPON
08/15/2012CN101771470B Method and device for receiving OPFDM-DQPSK signals
08/15/2012CN101729347B Method, system and device for protecting circuit loop
08/15/2012CN101718888B Dispersion compensation fiber and module thereof
08/15/2012CN101557270B Full-optical Fourier converter, inverse converter and orthogonal frequency division multiplexing system
08/15/2012CN101499853B Optical path measuring method, optical network and network appliance
08/15/2012CN101483484B Optical fiber straight-forward station adapter and working method
08/15/2012CN101112024B Optical receiver
08/14/2012US8244143 Multichannel polarization control for polarization multiplexed optical transport networks
08/14/2012US8244142 Optical receiver having fractional sampling
08/14/2012US8244141 Method and apparatus for generating a dispersion compensation signal
08/14/2012US8244140 Communicating with components in optical communication systems using voltage signal detection and signature analysis
08/14/2012US8244138 Polarization-multiplexing optical transmitter polarization-multiplexing optical receiver, polarization-multiplexing optical transceiving system, and controlling method thereof
08/14/2012US8244137 Multichannel on a single wave laser over wave division multiplexing in free space optics using phase masks
08/14/2012US8244136 System and method for reduction of infrared noise during communication between consumer appliances
08/14/2012US8244134 Optical interconnect
08/14/2012US8244131 Optical wavelength multiplexing device, optical wavelength dividing device, optical wavelength dividing multiplexing device, and method of controlling optical band-pass filter
08/14/2012US8244129 Monitoring apparatus and method for polarization scrambler and optical transmission apparatus
08/14/2012US8244127 Quality of service in an optical network
08/14/2012US8244126 Automatically selecting a clock recovery mode within optical network terminals
08/14/2012US8244125 Passive optical network protection switching
08/14/2012US8244124 Eye safety mechanism for use in optical cable with electrical interfaces
08/14/2012US8244123 System and method for optical transmission
08/14/2012US8243363 Optical signal processing apparatus, optical receiving apparatus, and optical relay apparatus
08/14/2012US8242709 Optical transmitter
08/09/2012WO2012106308A1 Directional filter for separating closely spaced channels in an hf transceiver
08/09/2012WO2012105714A1 Optical receiver and method for optical reception
08/09/2012WO2012105628A1 Wavelength dispersion amount estimation method, wavelength dispersion compensation circuit, and reception device
08/09/2012WO2012105081A1 Coherent optical receiver, and inter-channel skew detection device and detection method in coherent optical receiver
08/09/2012WO2012105070A1 Optical receiver, polarization separation device and polarization separation method
08/09/2012WO2012104982A1 Optical transmitter and method of transmitting optical signals
08/09/2012WO2012104736A1 System, laser-on-cmos chip, and method for setting a wavelength to be used by the laser-on-cmos chip
08/09/2012WO2012104528A1 System for determining a propagation time of an optical signal between two optical devices using an optical link
08/09/2012WO2012104375A1 Method and device for monitoring distortion in an optical network
08/09/2012WO2012104116A1 Method of optical data transmission using polarization division multiplexing
08/09/2012WO2012103851A2 Remote node and passive optical network system
08/09/2012WO2012103849A2 Ranging method for passive optical network, system, and device
08/09/2012WO2012103841A2 Data processing method, optical receiver, and optical network system
08/09/2012WO2012103838A2 Optical fiber testing method, apparatus and passive optical network system
08/09/2012WO2012103832A2 Method for processing signals, optical receiver and optical network system
08/09/2012WO2012103819A2 Single-fiber bi-directional optical module and passive optical network system
08/09/2012WO2012103696A1 Optical line transmission protection system and method
08/09/2012WO2012103695A1 Method and device for ranging and passive optical network
08/09/2012WO2012040672A3 Jitter reduction of electrical signals from limiting optical modules
08/09/2012US20120201546 Pre-equalization optical transmitter and pre-equalization optical fiber transmission system
08/09/2012US20120201545 Multifunction Receiver-On Chip For Electronic Warfare Applications
08/09/2012US20120201544 Access system and method for transmitting ethernet signal and mobile communication signal
08/09/2012US20120201543 Optical branching unit, optical communication system, and optical multiplexing method
08/09/2012US20120201541 Routing, wavelength assignment, and spectrum allocation in wavelength convertible flexible optical wavelength-division multiplexing networks
08/09/2012US20120201534 Optical transmission apparatus and optical transmission system
08/09/2012US20120201533 Reference-Based In-Band OSNR Measurement on Polarization-Multiplexed Signals
08/09/2012US20120201062 Standby power cut-off device and control method thereof and power supply
08/09/2012US20120200226 Commissioning Coded Light Sources
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