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
10/03/2012EP2506462A1 Power saving method, system and optical network unit in passive optical network
10/03/2012EP2506461A1 Amplifying method, device and system of burst optical signal
10/03/2012EP2506460A1 High symbol rate wavelength division multiplexed system
10/03/2012EP2506459A1 Alternate polarisation modulation for reduced bit-rates in variable bit-rate systems
10/03/2012EP2506458A1 Coherent transponder for optical PS-QPSK signals
10/03/2012EP2506457A1 Processing of digital detection signals generated by coherent optical detection
10/03/2012EP2506456A2 Signal reception device and method based on microwave photon technology
10/03/2012EP2506455A1 Wireless signal transmission device and transmission method thereof
10/03/2012EP2504938A2 Methods, systems and devices for providing fiber-to-the-desktop
10/03/2012EP2504937A2 System and method for visible light communication
10/03/2012CN202475434U Synchronous frequency, broadcasting and wireless speaking optical cable relay system
10/03/2012CN202475433U Remote system for optical repeater station of FM broadcasting
10/03/2012CN202475432U Intelligent remote-control optical receiver
10/03/2012CN202475430U Optical fiber radio frequency storage circuit
10/03/2012CN202475429U Device capable of prolonging signal transmission distance of 1553B bus
10/03/2012CN202475427U Fixture for testing SFP (small form-factor pluggable) optical-fiber interface and fixture assembly
10/03/2012CN202475426U An on-line optical-signal-monitoring device
10/03/2012CN202475424U Apparatus for receiving plurality of infrared ray signals
10/03/2012CN1745530B Wavelength multiplex transmission system
10/03/2012CN102714801A Access point and terminal communications
10/03/2012CN102714555A Cross-talk reduction in a bidirectional optoelectronic device
10/03/2012CN102714554A Method and arrangement for in service Raman gain measurement and monitoring
10/03/2012CN102714553A Method for processing signals, optical receiver and optical network system
10/03/2012CN102714552A Modulator control system and method in an optical network
10/03/2012CN102714551A Data processing method, optical receiver, and optical network system
10/03/2012CN102714550A Optical network element
10/03/2012CN102714549A Transmitter and receiver for transceiving optical signals
10/03/2012CN102714548A Communication via multimode constellation
10/03/2012CN102714546A Method and device for determining output of visible frame in visible light communication system
10/03/2012CN102714545A Optical transceiver module, passive optical network system, optical fiber detection method and system
10/03/2012CN102714544A Reference-based in-band OSNR measurement on polarization-multiplexed signals
10/03/2012CN102714543A Submarine cable system underwater device management method and submarine cable system underwater device line monitoring equipment
10/03/2012CN102714541A Optical communication system, optical transmitter, optical receiver and optical transponder
10/03/2012CN102714495A Optocoupler circuit for gate driver
10/03/2012CN102713923A Server device that sets security levels in accordance with distances between devices, client device, communication system, integrated circuit for server control, integrated circuit for client control, server program, client program, method for communication system connection method
10/03/2012CN102713731A Photonic match filter
10/03/2012CN102713703A Waveguide optically pre-amplified detector with passband wavelength filtering
10/03/2012CN102710338A Method for realizing automatic gain compensation of simulative optic-fiber repeater according to light detection
10/03/2012CN102710336A Working point control device and working point control method applied in MZ (Mach-Zehnder) modulator
10/03/2012CN102710335A Device and method for generating microwave/millimeter wave photon frequency quadrupling
10/03/2012CN102710334A 40G CFP optical module for long-distance transmission
10/03/2012CN102710333A Full-duplex wired/wireless hybrid access method and system based on passive optical network (PON)/RoF
10/03/2012CN102710332A Cluster network and communication method of light distributing module
10/03/2012CN102710331A Method and device for replacing optical module
10/03/2012CN102710330A Compact type PWM (pulse-width modulation) optical fiber converter
10/03/2012CN102710326A Wavelength division multiplexing passive optical network system with remote node protecting function and realization method thereof
10/03/2012CN102710325A Voltage alarming device
10/03/2012CN102710324A Method for processing messages in intelligent optical network and optical line equipment
10/03/2012CN102710322A Debugging method of EA (electroabsorption) type laser in single-channel long-span optical transmission
10/03/2012CN102710320A Small intelligent optical distribution equipment
10/03/2012CN101636942B Optical communication base station, optical signal conversion apparatus, and optical signal conversion method
10/03/2012CN101536369B Method and device for supporting optical transmission network service dispatch in optical synchronization network
10/03/2012CN101399614B Protection method, system and device for long distance passive optical network
10/03/2012CN101335572B Optical clock recovery apparatus and method and birefringent medium
10/03/2012CN101103560B Optics transceiver, method of data transmission on a physical link and repeater
10/02/2012US8280662 Optical system, optical module and threshold setting method
10/02/2012US8280398 Positioning system, positioning method, and program thereof
10/02/2012US8280262 Light receiving circuit and photocoupler isolation circuit
10/02/2012US8280261 Optical signal phase regenerator for formats of differential modulation with phase changes
10/02/2012US8280260 Dynamically optimizing a decision threshold voltage in an optical transponder
10/02/2012US8280259 Radio-over-fiber (RoF) system for protocol-independent wired and/or wireless communication
10/02/2012US8280258 Optical communication systems and methods utilizing a split amplification band and nonlinear compensation
10/02/2012US8280256 Optical hybrid circuit, optical receiver and light receiving method
10/02/2012US8280253 Optical telecommunications network terminal, an installation including the terminal, and a method of detecting a break in optical transmission means
10/02/2012US8280252 Subscriber terminal of adjusting intensity of optical signal by controlling attenuation, and a method thereof
10/02/2012US8280250 Bandwidth provisioning for an entangled photon system
10/02/2012US8280249 Pluggable module with integrated traffic management functionality
10/02/2012US8280248 Method and apparatus for loading, detecting, and monitoring channel-associated optical signals
10/02/2012US8280247 Arrangement for supervising and/or controlling the bit rate of data pulses
10/02/2012US8280246 Measuring differential group delay in an optical fiber connection
10/02/2012US8280245 Optical sampling with coherent detection
10/02/2012US8280244 Optical ring network system
10/02/2012US8280243 Optical communication transmission system and method for checking performance of optical communication transmission system
10/02/2012US8280201 Traveling wave Mach-Zehnder optical device
10/02/2012US8279775 Node device cooperating with switch which implements zones in a fibre channel system
10/02/2012US8279518 Optical amplifier
10/02/2012CA2562790C Coolerless and floating wavelength grid photonic integrated circuits (pics) for wdm transmission networks
09/2012
09/28/2012CA2773027A1 Seamless configuration update for optical network unit in ethernet passive optical network
09/27/2012WO2012128697A1 Onu with wireless connectivity capability
09/27/2012WO2012128677A1 Supervision of wavelength division multiplexed optical networks
09/27/2012WO2012127488A1 Mini-optical network terminal (ont)
09/27/2012WO2012127091A1 System for the certification of a passive optical network and for the detection of problems and faults in the last fibre legs
09/27/2012WO2012126738A1 A method and a system for physical layer monitoring in passive optical networks
09/27/2012WO2012126403A2 Optical transceiving module, passive optical network system, optical fibre detection method and system
09/27/2012WO2012126158A1 All optical electricity usage information collection system
09/27/2012WO2012126056A1 System and apparatus for locating faults in a cable network
09/27/2012WO2012059312A3 Method for converting a digital signal into optical pulses
09/27/2012US20120243881 Extended Temperature Fiber Optic Cable Design
09/27/2012US20120243880 Multi-wavelength light source
09/27/2012US20120243879 Communication system, communication device, and communication method
09/27/2012US20120243878 Radio frequency and digital signal dual carrier mulitple modulation system
09/27/2012US20120243877 Optical transceiving system with frame synchronization and optical receiving apparatus
09/27/2012US20120243876 Use of semiconductor optical amplifiers-based intensity modulator in signal transmission
09/27/2012US20120243875 Dynamic Memory Allocation in an Optical Transceiver
09/27/2012US20120243874 Radio Frequency Optical Communication System
09/27/2012US20120243873 Method and device for conveying data across a shared medium
09/27/2012US20120243872 Operation methods in an ethernet passive optical network that includes a network unit with multiple entities
09/27/2012US20120243871 Onu with wireless connectivity capability
09/27/2012US20120243870 Distributing Wavelength Compatible with Signaling Protocols
09/27/2012US20120243866 Fault analysis and monitoring applications using out-of-band based modules
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