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)
09/2008
09/16/2008US7426346 System and method for preventing signal loss in an optical communications network
09/16/2008US7426324 Optical rotating data transmission system with a cleaning device
09/16/2008US7426224 Optical transmitter with a digitally controlled bias and modulation currents for a laser diode
09/16/2008US7426177 Round trip delay adjustment in multipoint-to-point communication using orthogonal frequency division multiplexing
09/12/2008WO2008109788A1 Reverse path optical link using frequency modulation
09/12/2008WO2008108628A1 Achromatic optical retarder
09/12/2008WO2008108399A1 Optical module
09/12/2008WO2008108142A1 Optical connecting device
09/12/2008WO2008107852A1 Generation of quantum-correlated and/or polarization-entangled photon pairs with unequal wavelengths
09/12/2008WO2008106878A1 An electric-optic conversion module, an optic-electric conversion module and a conversion method
09/12/2008WO2008106832A1 Intelligent tour guide interpreting system and the working method thereof
09/12/2008WO2008054524A3 Variable spectral phase encoder/decoder based on decomposition of hadamard codes
09/12/2008WO2008033722A3 Photonics-based multi-band wireless communication methods or systems
09/12/2008CA2680245A1 Generation of quantum-correlated and/or polarization-entangled photon pairs with unequal wavelengths
09/11/2008US20080219680 Optical receiving apparatus and balance adjustment method
09/11/2008US20080219677 Optical transmitter
09/11/2008US20080219676 Transmitting device, receiving device, and optical communication method
09/11/2008US20080219675 Apparatus and method for light intensity modulation and optical transmission system employing the same
09/11/2008US20080219674 Optical space transmission device including rotatable member
09/11/2008US20080219673 Optical Transceiver with Reduced Height
09/11/2008US20080219672 Integrated infrared receiver and emitter for multiple functionalities
09/11/2008US20080219671 Indirect Optical Free-Space Communications System and Method for the Broadband Transmission of Hight-Speed Data
09/11/2008US20080219670 RoF system providing HD wireless communication service and signal control method for the same
09/11/2008US20080219665 Optical communication apparatus, optical communication system, and optical communication control method
09/11/2008US20080219664 Method and System for Controlling Optical Network
09/11/2008US20080219661 Digital cros-connect
09/11/2008US20080219660 Communicating Information
09/11/2008US20080219304 Analog external cavity laser
09/11/2008US20080219299 Optical fibre laser
09/11/2008US20080218848 Optical amplifier, optical amplifier controller and control method of the same
09/11/2008US20080217511 Optical feedback control unit, optical communication system, feedback control method, and recording medium for recording program
09/11/2008DE102007012295A1 Elektronische Schaltung zum Übertragen hochfrequenter Signale Electronic circuit for transmitting high-frequency signals
09/10/2008EP1968227A2 Optical communication apparatus, optical communication system, and optical communication method
09/10/2008EP1968215A2 Apparatus and method for light intensity modulation and optical transmission system employing the same
09/10/2008CN201114306Y 数字会议讨论装置 The meeting discussed means of digital
09/10/2008CN201114292Y Vehicle mounted mobile communication apparatus
09/10/2008CN201114120Y Modularized industrial ethernet network switch
09/10/2008CN201114095Y Wavelength-division multiplexing single fiber bidirectional device structure
09/10/2008CN201114084Y CobraNet double optical fibre transceiver
09/10/2008CN201114083Y Ethernet network terminal port power feed type optical network unit stairway exchange device
09/10/2008CN201114082Y Light emission sub-module for optical fibre communication
09/10/2008CN201114081Y Fiber communication system platform downlink light emission module
09/10/2008CN201114080Y Photoelectric receiving/ launcher
09/10/2008CN201114079Y Single fiber bidirectional transceiver
09/10/2008CN201114078Y Passive optical network terminal
09/10/2008CN201114077Y Common valve light receiving and distributing device
09/10/2008CN201114076Y Multipath wide band light receiving and demodulating machine
09/10/2008CN201114075Y Multipath wide band light emitting machine
09/10/2008CN201114074Y Split combination type optical fibre network unit
09/10/2008CN201114073Y Single-fiber bidirectional receiving and transmitting component assembling structure
09/10/2008CN201114072Y Novel wired network system
09/10/2008CN201114071Y Multipath analog and digital audio frequency mixing transmission light emitting machine
09/10/2008CN201114070Y Optical protector for preventing single operator failure
09/10/2008CN201114069Y Drawer type high and low-temperature circulating box for rapid temperature change
09/10/2008CN201114068Y CWDM network on-line monitoring instrument
09/10/2008CN201114067Y Fiber communication system platform status centralized control unit
09/10/2008CN201114066Y Multi-test port optical distributor
09/10/2008CN201114065Y Tail fiber possessing test port
09/10/2008CN201114064Y Plug type optical fibre transceiver T -type anti-dust cap
09/10/2008CN201114063Y Optical receiving-transmitting module unblocking tool
09/10/2008CN201114062Y Pull ring type unlocking device for photoelectric module
09/10/2008CN201114046Y Digital optical fibre repeater station system possessing up link multichannel receiving function
09/10/2008CN201113989Y Wireless medium playing terminal
09/10/2008CN201113984Y Short wave reception optical fiber transmission system
09/10/2008CN201113223Y Laser driving circuit
09/10/2008CN101263674A 光中继装置和光传送系统 The optical relay device and an optical transmission system
09/10/2008CN101263402A Optical receiver with modulation light detector
09/10/2008CN101262480A Communication device, communication method, communication circuit, communication program, recording medium and mobile telephone
09/10/2008CN101262298A Multi-failure protection method for multiple service levels in WDM network
09/10/2008CN101262283A Optical amplifier, optical amplifier controller and control method of the same
09/10/2008CN101262282A A method and device for improving reliability of passive optical network
09/10/2008CN101262239A Mm wave RF receiving/transmission device
09/10/2008CN100418324C Data transmissions in communication networks using multiple tokens
09/10/2008CN100418074C Hierarchical and byte-configurable memory in an optical transceiver
09/10/2008CN100417964C Eccentrically focus-adjusted optical fiber adapter structure and regulation method of same
09/09/2008US7424230 Digital transmission system
09/09/2008US7424229 Methods and apparatus for Raman crosstalk reduction via idle data pattern control
09/09/2008US7424228 High dynamic range radio frequency to optical link
09/09/2008US7424227 Optical repeater converting wavelength and bit rate between networks
09/09/2008US7424226 Optical code division multiplexing communication method and system
09/09/2008US7424225 Systems and methods for implementing contention-based optical channel access
09/09/2008US7424224 Systems and methods for placing line terminating equipment of optical communication systems in customer points of presence
09/09/2008US7424222 Optical packet exchanger
09/09/2008US7424221 Optical network terminal with illegal transmission detection circuitry
09/09/2008US7424220 Optical transmission system with two-mode ring protection mechanism for prioritized client signals
09/09/2008US7424191 System for measuring the wavelength dispersion and nonlinear coefficient of an optical fiber
09/09/2008US7424037 OTU frame data generating apparatus and method in which multiframe structured data to be inserted into overhead portion can be easily edited
09/09/2008US7423793 Method and apparatus for decoding digital signal
09/09/2008US7423767 Method and apparatus for transmitting energy via a laser beam
09/09/2008US7423257 Signal transmission device and method for transfer of signals between two elements moving relative to one another using an optically-readable strip conductor
09/09/2008CA2519343C Communications device powered from host apparatus
09/09/2008CA2463013C System and method for pda to pda communication using a network portal
09/09/2008CA2368979C Communications network
09/09/2008CA2306327C Blossom/wilt for dynamic reallocation in a distributed fiber system
09/04/2008WO2008106626A1 Multi-mode integrated circuit for use in optoelectronic devices
09/04/2008WO2008105284A1 Optical communication system
09/04/2008WO2008105202A1 Optical fiber transmission device and optical communication network
09/04/2008WO2008105097A1 Optical node device
09/04/2008WO2008105027A1 Wdm transmitting device
09/04/2008WO2008104759A1 Testing an optical network