Patents
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)
06/2012
06/28/2012WO2012086559A1 Optical access system
06/28/2012WO2012086537A1 System, method and program for monitoring
06/28/2012WO2012086284A1 Transmitter and communication system
06/28/2012WO2012086283A1 Modulator, transmitter and communication system
06/28/2012WO2012086220A1 Optical time division multiplexing circuit
06/28/2012WO2012085979A1 Optical communication device
06/28/2012WO2012085802A1 Appliance and arrangement for optical signal transmission by means of optical waveguides
06/28/2012WO2012085563A1 Raman amplifiers
06/28/2012WO2012084365A1 Dynamic evaluation of the optical multiplex section per-channel pre-emphasis power
06/28/2012WO2012084271A1 Optical signal power selection and control
06/28/2012WO2012084027A1 Optical network component and method for processing data in an optical network
06/28/2012WO2012083782A1 Detection method, device and system of branch optical fiber
06/28/2012WO2012083682A1 Method for multiplexing optical signals and optical multiplexer
06/28/2012WO2012083344A1 Electronic compensation of cross-phase modulation
06/28/2012US20120166040 Apparatus and method for collecting vehicle diagnostic information
06/28/2012US20120163833 System and method for reducing mutual leakage between distributed feedback laser and electro-absorption modulator in integrated electro-absorption modulated laser
06/28/2012US20120163832 System and method for distortion compensation including configureable delay
06/28/2012US20120163831 Digital modulation method and device, especially an optical digital modulation method and device
06/28/2012US20120163830 Optical repeater and optical signal amplifying method thereof
06/28/2012US20120163829 POWER DISTRIBUTION DEVICES, SYSTEMS, AND METHODS FOR RADIO-OVER-FIBER (RoF) DISTRIBUTED COMMUNICATION
06/28/2012US20120163828 Apparatus
06/28/2012US20120163827 Infrared remote control unit and lighting system having same
06/28/2012US20120163823 Continuous-mode wavelength conversion apparatus, burst-mode wavelength conversion apparatus, remote termination apparatus and central office termination apparatus
06/28/2012US20120163820 Upgradable wdm system
06/28/2012US20120163819 Data transmission apparatus and method for use in separate-type base station
06/28/2012US20120163818 Passive optical network apparatus for transmitting optical signal
06/28/2012US20120163817 Connection management server, olt, onu/ont and the system and method for providing ethernet-based ptl-pon
06/28/2012US20120163816 Passive Optical Network with Sub-Octave Transmission
06/28/2012US20120163812 Method and apparatus for transmitting packet data over optical transport network
06/28/2012US20120163811 Ultra-high bandwidth, multiple-channel full-duplex, single-chip cmos optical transceiver
06/28/2012US20120163809 Burst-Mode Receiver Equipped with Optical Amplifier, Method for Controlling Optical Amplifier, and System
06/28/2012US20120163808 Detecting rogue onu, olt and pon system
06/28/2012US20120163807 Representation of the physical degradations in an optical communication network
06/28/2012US20120163806 Optical line terminal device and optical network device
06/28/2012US20120163805 Optical network unit and method of saving power thereof
06/28/2012US20120163804 Apparatus and method for efficient optical loss measurement
06/28/2012US20120163803 Information processing method in optical network, optical communication apparatus and system
06/28/2012US20120163802 Wdm-tdm pon remote terminal and wdm-tdm pon link protection system
06/28/2012US20120163801 Optical fiber communication system
06/28/2012US20120163800 Optical Time Domain Reflectometry (OTDR) Trace Analysis in PON Systems
06/28/2012US20120163799 Method for Transmitting OAM Message and Processing Error in PON System
06/28/2012US20120163797 Apparatus and method for rerouting multiple traffics
06/28/2012US20120163796 Distributed electrical cross device, and system and method thereof for implementing sub-network connection (snc) cascade protection
06/28/2012US20120163795 Method and device for indicating client signal fail
06/28/2012US20120163757 Optical module and optical system
06/28/2012US20120163187 Apparatus and method for transmitting lan signals over a transport system
06/28/2012US20120162746 Plc-type delay demodulation circuit
06/27/2012EP2469739A1 A digital modulation method and device, especially an optical digital modulation method and device
06/27/2012EP2468012A1 Method and device for adjusting a laser in an optical network
06/27/2012EP2467955A1 In-band optical noise measurement using differential polarization response
06/27/2012EP2467954A1 Optical receiver for receiving light and optoelectronic measuring arrangement
06/27/2012EP1932261B1 Optical demodulating apparatus and method
06/27/2012EP1471668B1 Disperse equalizer and disperse equalizing method
06/27/2012EP1323217B1 Wide bandwidth fiber raman amplifier
06/27/2012CN202285398U Agc光接收模块电路 Agc optical receiver module circuit
06/27/2012CN102523540A Optical module and passive optical network with same
06/27/2012CN102523437A Scheduling switching method for FC-AV (Fiber Channel-Audio Video) data
06/27/2012CN102523170A Method for configuring regenerators in wavelength division multiplexing optical network
06/27/2012CN102523067A Industrial-grade optical transmission system
06/27/2012CN102523049A Comprehensive broadband home system based on fiber to the home (FTTH) and signal transmission method thereof
06/27/2012CN102523048A Optical fiber nonlinear effect restraining device
06/27/2012CN102523047A Method and device for simultaneously carrying out amplification, inversion and code-pattern conversion on all-optical intensity signal
06/27/2012CN102523046A Digital visual building intercom device based on data transmission through plastic optical fiber
06/27/2012CN102523045A Full-optical-fiber coupled mode polarization mode dispersion system and method
06/27/2012CN102523044A System for realizing network extension and protection functions with wave-division multiplexing annular optical access networks and method for realizing network extension and protection functions with wave-division multiplexing annular optical access networks
06/27/2012CN102523043A Photodetector
06/27/2012CN102523042A Electronic signal transmission system adopting light emitting diode as medium
06/27/2012CN102523041A Off-line and on-line test integrated multi-wavelength optical path component
06/27/2012CN102523040A On-line monitoring method of submarine communication optical fiber and monitoring apparatus thereof
06/27/2012CN102523039A System and method for realizing same-wavelength uplink and downlink isolation and grading protection functions of colorless wavelength division multiplexing optical access network
06/27/2012CN102523038A Optical time-domain reflectometer, reflection event detection method and optical network system
06/27/2012CN102523037A Centralized monitoring and managing system for optical cable resources
06/27/2012CN102520510A Hand-held double-mode wireless laser communication optical transceiver aiming reception apparatus
06/27/2012CN102520491A Optical emitter assembly and manufacture method thereof
06/27/2012CN102519607A Satellite-borne atmospheric coherent length testing method and satellite-to-ground coherent optical communication method
06/27/2012CN101815057B Speed doubling method of multiple data rate compatible superspeed self-adaption full-gloss packet
06/27/2012CN101800604B Light coherence receiving system and method thereof
06/27/2012CN101718940B Control device and control method for realizing rapid convergence of Er-doped fiber amplifier
06/27/2012CN101567722B Device and method for optical fiber detection
06/27/2012CN101459469B Optical layer scheduling method for network element and network management control system
06/27/2012CN101404543B M-DPSK signal demodulator
06/27/2012CN101361330B Hierarchical routing inquiry method of automatic exchange optical network
06/27/2012CN101345587B CSO control circuit of light receiver
06/27/2012CN101237292B Method and system for diagnostic operation within a switched fibre channel arbitrated loop system
06/27/2012CN101207446B Dispersion compensator, optical transmission system and optical transmission method
06/27/2012CN101159524B Automatic protection rearrangement checking method and device
06/27/2012CN101106430B Optical access system of protocol converter
06/27/2012CN101026419B Wavelength division multiplex (WDM) transmission system
06/27/2012CN101026418B Multi frequency optical millimeter wave generating device and related receiver
06/26/2012US8208819 Optical signal generator
06/26/2012US8208818 Optical free space transmission system using visible light and infrared light
06/26/2012US8208817 High-speed optical modulation using a quantum-well modulator
06/26/2012US8208816 Method and apparatus for dispersion mitigation in optical links
06/26/2012US8208815 Bit accurate upstream burst transmission phase method for reducing burst data arrival variation
06/26/2012US8208814 Optical transceiver calibration system and method
06/26/2012US8208813 Machine with optical communication from a first machine part to a second machine part which rotates relative to the first machine part
06/26/2012US8208812 Optical relay device and optical relay transmission system
06/26/2012US8208809 Method and system for data synchronization in passive optical networks
06/26/2012US8208807 Transmission of eye information from opto-electronic modules
06/26/2012US8206043 Fiber optic transceiver module release mechanism