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)
03/2012
03/28/2012CN102394694A RSSI (received signal strength indicator) monitoring circuit with high sampling accuracy
03/28/2012CN102394693A Method for accurately positioning fault points of optical cables
03/28/2012CN102394692A DDMI optical module receiving end monitoring circuit and burst-mode luminous-power monitoring method thereof
03/28/2012CN102394691A Mining infrared receiver
03/28/2012CN102394690A Mine infrared transmitter
03/28/2012CN102394689A Terahertz wave-based method and system for implementing audio radio communication link
03/28/2012CN102394506A Multifunctional intelligent station integrating transformation, charging and conversion
03/28/2012CN102394005A Optical fiber communication ring network based partial discharge measurement data transmission system and its control method
03/28/2012CN102393593A Ultra-short pulse light source generating device
03/28/2012CN102393550A Dimming delay line for silica delay and manufacturing method thereof
03/28/2012CN101710845B Method for carrying out unidirectional transmission time delay test by using GPS system
03/28/2012CN101656577B Automatic power adjusting system and automatic power adjusting method for optical network system
03/28/2012CN101567721B Beam-capturing scanning method for rapidly establishing laser link between relay satellite and user satellite
03/28/2012CN101369851B 相干光接收系统 Coherent optical receiver system
03/28/2012CN101345586B CTB/XMOD control circuit of light receiver
03/28/2012CN101330329B Self-adapting testing method and system
03/28/2012CN101159493B Testing optically amplified links with time-division multiplexed test signals
03/28/2012CN101022312B Optical network element, transmission system and method for compensating dispersion-related propagation effects
03/27/2012US8145072 DQPSK optical receiver
03/27/2012US8145071 Electrical-dispersion compensating apparatus, optical receiving apparatus, and optical receiving method
03/27/2012US8145069 Optical transmitter
03/27/2012US8145068 Dual use of test point power monitor
03/27/2012US8145067 Optical transmitter
03/27/2012US8145066 Predistortion using FPGA
03/27/2012US8145065 Low-frequency signal optical transmission system and low-frequency signal optical transmission method
03/27/2012US8145064 System and method for suppressing noise by frequency dither
03/27/2012US8145063 Method and device for readjusting a polarization drift
03/27/2012US8145062 Optical amplifier capable of amplifying optical signals that traverse separate transmission fibers
03/27/2012US8145061 Optical module implementing a light-receiving device and a light-transmitting device within a common housing
03/27/2012US8145060 Passive optical network transceiver with temperature compensation circuit
03/27/2012US8145059 Circuit topologies for high speed, low cost optical transceiver components
03/27/2012US8145058 Optical network unit transceiver module having direct connect RF pin configuration
03/27/2012US8145057 Method for localizing an optical termination device in a passive optical network
03/27/2012US8145055 Passive optical network system, optical line terminator and optical network unit
03/27/2012US8145054 Single-fiber protection in telecommunications networks
03/27/2012US8145024 Optical communications system
03/27/2012US8144813 Receiving method and receiving circuit
03/27/2012US8144392 Waveguide amplifier in a sputtered film of erbium-doped gallium lanthanum sulfide glass
03/27/2012DE202010013212U1 Gerät und Anordnung zur optischen Signalübertragung mittels Lichtwellenleitern Device and arrangement for optical signal transmission using optical fibers
03/27/2012CA2463522C Transmitter photonic integrated circuit (txpic) chip with enhanced power and yield without on-chip amplification
03/22/2012WO2012036896A1 System and method for dual-band antenna pointing, acquisition, and tracking
03/22/2012WO2012036661A1 Opto-isolation circuit
03/22/2012WO2012036530A2 Optical transmission and receiving device for implementing passive alignment of components and method for passively aligning components
03/22/2012WO2012036112A1 Optical network unit for optical path network
03/22/2012WO2012036054A1 Media converter
03/22/2012WO2012035469A1 Coded light emitting device
03/22/2012WO2012035304A1 Optical signal processing
03/22/2012WO2012034604A1 Passive optical networks
03/22/2012WO2012034385A1 Method and system for realizing power saving mechanism management between optical network unit (onu) and optical line terminal (olt)
03/22/2012WO2012034382A1 Method for controlling the deregistering of optical network unit (onu) and onu thereof
03/22/2012WO2011139845A3 Cross-talk reduction in a bidirectional optoelectronic device
03/22/2012US20120071062 Systems and methods to communicate and control actions using light emitting diodes
03/22/2012US20120070159 Signal generating circuit, optical signal transmitting apparatus, signal receiving circuit, method for establishing optical signal synchronization, and optical signal synchronization system
03/22/2012US20120070158 Flexible identification systems and related methods
03/22/2012US20120070157 Omni-directional radiation-based signal transmitting apparatus
03/22/2012US20120070156 Semiconductor optical amplifier
03/22/2012US20120070155 Flexibly configurable optical sub-assembly
03/22/2012US20120070154 Method and apparatus for performing an automatic power adjustment for an optical signal
03/22/2012US20120070153 Noise Detector in a Light Bulb
03/22/2012US20120070152 Room association device conveying sector data for in-room position and facing determinations
03/22/2012US20120070151 Optical Modulators for Generating De-Emphasis Formatted Optical Signals and Methods of Operating the Same
03/22/2012US20120070147 Communication system and communication apparatus
03/22/2012US20120070146 Monitoring Node and Reflector Node of an Optical Communication Network, Optical Communication Network, and Method for Operating an Optical Communication Network
03/22/2012US20120069854 Coherent optical receiver and control method thereof
03/22/2012US20120068880 System and Method for Dual-Band Antenna Pointing, Acquisition, And Tracking
03/22/2012DE102011083075A1 Übermitteln und Empfangen von digitalen und analogen Signalen über einen Isolator hinweg Transmitting and receiving digital and analogue signals over an insulator across
03/22/2012DE102010040866A1 Feldgerät zur Bestimmung und/oder Überwachung einer chemischen oder physikalischen Prozessgröße in der Automatisierungstechnik Field device for determining and / or monitoring of a chemical or physical process variable in automation technology
03/22/2012CA2810817A1 Opto-isolation circuit
03/21/2012EP2432147A1 Method and device for detecting fault of signal processing equipment and optical interface board online
03/21/2012EP2432143A1 A method and apparatus for performing an automatic power adjustment for an optical signal
03/21/2012EP2432142A1 Method, repeater and submarine cable system for monitoring fiber line status
03/21/2012EP2432141A1 Method for monitoring the operation of a communication network
03/21/2012EP2432140A1 Monitoring node and reflector node of an optical communication network, optical communication network, and method for operating and optical communication network
03/21/2012EP2432139A1 Method, device and system for feedback control of a coherent receiver
03/21/2012EP2431805A1 Optical demodulator
03/21/2012EP2430781A1 Systems and techniques for suppressing backward lasing in high-power cascaded raman fiber lasers
03/21/2012EP2430780A2 Apparatus and method for support of dimming in visible light communication
03/21/2012EP2430779A1 Branching configuration including separate branching unit and predetermined wavelength filter unit and system and method including the same
03/21/2012EP2430778A1 POWER DISTRIBUTION DEVICES, SYSTEMS, AND METHODS FOR RADIO-OVER-FIBER (RoF) DISTRIBUTED COMMUNICATION
03/21/2012CN202172470U 一种多功能室内光纤布线箱 A multifunctional indoor fiber optic cabling boxes
03/21/2012CN202172410U 一种基于物联网的带按键的射频智能光模块 An Internet of Things with key RF-based intelligent optical module
03/21/2012CN202172409U 一种多功能低成本sfp模块pcb A versatile low cost sfp module pcb
03/21/2012CN202172408U 一种低成本带高精度数字诊断功能的sfp模块 Sfp module is a low cost with high precision digital diagnostic functions
03/21/2012CN202172407U 光电通信转换器 Optical communication converter
03/21/2012CN202172406U 光旁路保护的光功率监测装置 Optical Bypass Protection of optical power monitoring device
03/21/2012CN1833384B Method and apparatus for testing optical networks
03/21/2012CN102388577A Optical subscriber terminal device, pon system, and abnormality detection method
03/21/2012CN102388566A Method, device and system for converting identifier of terminal device
03/21/2012CN102388550A Measurement of nonlinear effects of an optical path
03/21/2012CN102388549A Method, system and device for detecting optical fiber link in passive optical network
03/21/2012CN102387425A Caching device and method
03/21/2012CN102387424A Multicast service control method and optical network unit (ONU)
03/21/2012CN102387355A Single chip controlled optical automatic gain control circuit of cable TV (television) network optical receiver
03/21/2012CN102387185A Double-frequency-band communication device for indoor light sensor wireless network
03/21/2012CN102386993A Protection switching method for optical transport networks and transport device
03/21/2012CN102386980A Chromatic dispersion compensation method and device
03/21/2012CN102386979A Optical receiver uplink laser control circuit transformed by wired television bilateral network
03/21/2012CN102386978A Communication control circuit device based on EPON (Ethernet passive optical network) and working method thereof
03/21/2012CN102386977A Data transmitting and receiving method, device and equipment for optical fiber transmission
03/21/2012CN102386976A Illuminating light communication device
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