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)
07/2011
07/07/2011US20110164872 Fast convergence on child link failures and weighted load balancing of aggregate ethernet/sonet bundles
07/07/2011US20110164658 Method for spreading the spectrum of a narrowband signal
07/07/2011US20110164309 Gain and signal level adjustments of cascaded optical amplifiers
07/07/2011US20110164305 Optical i-q-modulator
07/07/2011US20110164300 Method and device for bias control of a laser modulator
07/07/2011US20110163891 Methods and systems for downhole telemetry
07/07/2011US20110163844 Identification element having an optical transponder
07/07/2011DE112009002072T5 Lichtfaserkabelkonnektor mit integrierter Kabelaufteilung Optical fiber cable connector with integrated cable division
07/06/2011EP2341643A1 Method and apparatus for filter locking
07/06/2011EP2341642A1 Method for transmitting data on an optical channel
07/06/2011EP2341387A1 Non-contact data transfer from gimbal systems
07/06/2011EP1762029B1 Wavelength division multiplex (wdm) optical demultiplexer
07/06/2011CN201893823U 激光电话 Laser Phone
07/06/2011CN201893791U Time division multiplexing optical transceiver
07/06/2011CN201893790U Photoelectric adapter
07/06/2011CN201893789U Optical cable routing tester
07/06/2011CN201893788U Power supply device for active optical network unit
07/06/2011CN1894902B Audio and/or video system for a motor vehicle
07/06/2011CN1815931B Optical receiver apparatus and corresponding method
07/06/2011CN1802880B Light output modulation for data transmission
07/06/2011CN102119350A Wavelength division multiplexing
07/06/2011CN102118660A Method and device for accessing optical module
07/06/2011CN102118659A Method and system for saving energy in passive optical network
07/06/2011CN102118658A Method and device for port identification of light splitter
07/06/2011CN102118258A Protective method and protective system for abnormal situation in upgrading of gigabit passive optical network terminal
07/06/2011CN102118194A Single fiber bi-directional optical element and assembly method thereof
07/06/2011CN102118193A Passive optical network fault diagnosis system based on optical line terminal module
07/06/2011CN102116906A Optic fiber coupling connector and optic transmission device
07/06/2011CN102113747A Plastic optical fiber tamper-proof detection-based electronic wrist strap
07/06/2011CN102113746A Electronic wrist band based on optical fiber anti-disassembly and temperature measurement
07/06/2011CN101479896B Variable gain optical amplifiers
07/06/2011CN101471837B Optical channel data cell sharing protection ring, signal transmission method and network node
07/06/2011CN101351056B Method and apparatus for transmitting fault information
07/06/2011CN101330326B Digital circuit for implementing audio data optical transmission using CPLD and method thereof
07/06/2011CN101317349B Passive optical network maintenance method, optical network unit and optical line terminal
07/06/2011CN101286803B Optimizing method for dual and locked mode optical fiber wireless wave division multiplexing system
07/06/2011CN101188456B A performance tracking and testing method for space optical communication system
07/06/2011CN101013924B Controlling optical power and extincation ratio of a semiconductor laser
07/05/2011US7974543 Optical receiver and a free-space optical communications using the same
07/05/2011US7974542 OTDM-DPSK signal generator capable of detecting an optical carrier phase difference between optical pulses
07/05/2011US7974541 High frequency signal optical transmission system and high frequency signal optical transmission method
07/05/2011US7974539 Bi-directional optical module
07/05/2011US7974538 Transaction for transceiver firmware download
07/05/2011US7974537 Intelligent pluggable transceiver stick capable of diagnostic monitoring and optical network management
07/05/2011US7974536 System and method for pre-configuring and authenticating data communication links
07/05/2011US7974534 Wideband microwave and millimeter wave filters using photonic spectral filtering
07/05/2011US7974533 Long reach optical network
07/05/2011US7974532 System and method for bandwidth management in ethernet-based fiber optic TDMA networks
07/05/2011US7974290 TDMA passive optical network OLT system for broadcast service
07/05/2011US7974002 System and method for managing system margin
07/05/2011US7973819 Method and apparatus for determining the position of a moving object, by using visible light communication
06/2011
06/30/2011WO2011079162A2 Communication via a multimode constellation
06/30/2011WO2011078844A1 Circuit switched optical interconnection fabric
06/30/2011WO2011078647A1 A remote control unit for controlling a plurality of devices and corresponding methods of using the remote control unit
06/30/2011WO2011078609A2 Apparatus and method for controlling the lasing wavelength of a tunable laser, and wavelength division multiplexed passive optical network comprising same
06/30/2011WO2011077948A1 Optical transmission system and optical transmission method
06/30/2011WO2011077429A1 Technique for monitoring optical networks
06/30/2011WO2011076671A1 Method and apparatus for preventing signal interference in a passive optical network
06/30/2011WO2011076256A1 Method and device for data protection in an optical communication network
06/30/2011WO2011075964A1 Temperature-compensation interferometer
06/30/2011WO2011075901A1 Generic mapping procedure (gmp) mapping method, de-mapping method and device thereof
06/30/2011WO2011075885A1 Device for optical network unit integration
06/30/2011WO2011051446A3 Use of semiconductor optical amplifiers-based intensity modulator in signal transmission
06/30/2011US20110158658 Optical Subchannel-Based Cyclical Filter Architecture
06/30/2011US20110158657 Infrared receiver circuit
06/30/2011US20110158656 High dynamic range apd optical receiver for analog applications
06/30/2011US20110158655 Dispersion Measurement of Optical Fibres During Operation
06/30/2011US20110158654 Differential quadrature phase shift keying system, method, and device
06/30/2011US20110158653 Dynamic intelligent bidirectional optical access communication system with object/intelligent appliance-to-object/intelligent appliance interaction
06/30/2011US20110158652 Portable infrared control liaison
06/30/2011US20110158651 Method and apparatus for filtering locking
06/30/2011US20110158643 Optical transmission module and wavelength control method of optical transmission module
06/30/2011US20110158642 Management, Monitoring and Performance Optimization of Optical Networks
06/30/2011US20110158641 Subchannel Photonic Routing, Switching and Protection with Simplified Upgrades of WDM Optical Networks
06/30/2011US20110158639 Methods and apparatuses to support multiple fiber networking platforms
06/30/2011US20110158638 Pon system and redundancy method
06/30/2011US20110158574 Optical hybrid circuit, optical receiver, and optical receiving method
06/29/2011EP2339771A2 Optical ring network with nodes and method
06/29/2011EP2339770A1 Optical ring network with nodes and method
06/29/2011EP2339762A1 Visible light communication transmitter and visible light communication system
06/29/2011EP2338792A2 Galley control system of aircraft
06/29/2011EP2338243A2 Communication network
06/29/2011EP2338241A1 Method and apparatus for transmission of two modulated signals via an optical channel
06/29/2011EP2161800B1 A method and system for controlling wavelengths of laser arrays
06/29/2011CN201887790U Modern communication system for automatic meteorological observation site
06/29/2011CN201887789U Integrated equipment for acquiring and transmitting Ethernet environment/power data
06/29/2011CN201887788U Comprehensive monitoring system for communication circuit facility
06/29/2011CN201887787U Photoelectric hybrid signaling voice acquisition gateway
06/29/2011CN201887774U Dual gigabit Ethernet self-adaptive optical fiber transceiver
06/29/2011CN201887773U SBS (stimulated Brillouin scattering) threshold expanding circuit of cable television 1550nm externally modulated optical transmitter
06/29/2011CN201887772U SBS (stimulated Brillouin scattering) threshold continuously adjustable circuit in cable television 1550nm externally modulated optical transmitter
06/29/2011CN201887771U High-resolution optical fiber analogy converter with bias circuit
06/29/2011CN201887770U Optical fiber radio frequency delayer
06/29/2011CN201887769U Short wave transmission system
06/29/2011CN201887768U On-line monitoring optical differential channel protection device
06/29/2011CN201887767U Optical fiber fault seeker with function of automatically matching measuring range with pulse width
06/29/2011CN201886181U Optical fiber transceiver module releasing mechanism
06/29/2011CN201885827U Dual-wavelength light-source self-correcting distributed optical-fiber Raman temperature sensor for optical-fiber Raman frequency shifter
06/29/2011CN201885732U Distributed optical fiber Brillouin sensor integrating optical fiber Brillouin frequency shifter
06/29/2011CN1980096B Fault sensor for a laser driver circuit