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)
09/2007
09/27/2007US20070223932 Free-space optical hybrid
09/27/2007US20070223931 Dispersion compensation type optical signal receiving apparatus, receiving circuit, receiving method, and receiving program
09/27/2007US20070223930 Method and apparatus for infrared data communication
09/27/2007US20070223929 Data port alignment of free space optical communications terminal with adaptive optics
09/27/2007US20070223928 Method and system for providing a return path for signals generated by legacy terminals in an optical network
09/27/2007US20070223927 Optical Pulse Time Spreader and Optical Code Division Multiplexing Transmission Device
09/27/2007US20070223925 Light source wavelength control apparatus
09/27/2007US20070223924 Optical transmission apparatus
09/27/2007US20070223921 Optical switch system
09/27/2007US20070223920 Method and Apparatus for Determining the Dynamic Range of an Optical Link in an HFC Network
09/27/2007US20070223919 Optical apparatus
09/27/2007US20070223918 Optical switching apparatus with optical reflection monitor and reflection monitoring system
09/27/2007US20070223570 Distortion Compensating Equalizer
09/27/2007US20070223543 Laterally Implanted Electroabsorption Modulated Laser
09/27/2007US20070223490 Passive optical network (PON) system
09/27/2007US20070223363 Control modulation in multipoint-to-point communication using orthogonal frequency division multiplexing
09/27/2007US20070223362 System for orderwire modulation
09/27/2007US20070223361 Method for orderwire modulation
09/27/2007US20070223086 Optical amplifying device
09/27/2007US20070223085 Multi-stage Raman amplifier
09/27/2007US20070221931 Optoelectronic semiconductor device and light signal input/output device
09/27/2007DE112004000304T5 Modul mit zwei bidirektionalen optischen Sendern/Empfängern Module with two bidirectional optical transmitters / receivers
09/26/2007EP1838128A2 Optical switch system
09/26/2007EP1838017A1 Cable segment for communication infrastructure
09/26/2007EP1838016A1 Optical cable segment with tapping connections for a communications infrastructure
09/26/2007EP1838015A1 Optical sending apparatus and optical transmission system
09/26/2007EP1838014A1 Optical pulse time spreader and optical code division multiplex transmitter
09/26/2007EP1836783A2 Methods and apparatus for optical wireless communication
09/26/2007EP1836515A1 Apparatus and method for using a counter-propagating signal method for locating events
09/26/2007EP1636929B1 Method for pre-emphasising optical signals in a transmission system comprising add-drop modules
09/26/2007EP1590903B1 Device and method for high rate optical transmission and use of said device and method
09/26/2007CN200953563Y TD-SCDMA optical fiber radio frequency long-distance transmitting equipment
09/26/2007CN200953562Y Wideband multibusiness optical transmitting equipment utilizing speech and digital comprehensive multiplexing technique
09/26/2007CN101044703A Protocol specific transceiver firmware
09/26/2007CN101043758A 光交换系统 Optical switching system
09/26/2007CN101043294A Slicing method for data frames and optical network unit
09/26/2007CN101043287A Transmission method and system for wavelength-division multiplexed passive optical network
09/26/2007CN101043280A Method and system for positioning user location
09/26/2007CN101043276A Passive optical network (pon) system
09/26/2007CN101043275A System and method for managing optical network unit or optical network terminal
09/26/2007CN101043274A Modulator-free optical millimeter wave generating method and full-duplex optical fiber wireless communication system
09/26/2007CN101043273A Directly modulated laser optical transmission system with phase modulation
09/26/2007CN101043272A System and method for detecting optical fiber wiring troubles
09/26/2007CN101043271A Method, equipment and system for switching optical service signal protection
09/26/2007CN101043270A Optical transmission router and alarm processing method
09/26/2007CN101043268A Apparatus and method for testing optical signal-noise ratio in optical amplifier transmission link
09/26/2007CN101043267A Protection and recovery method and apparatus for elastic optical burst ring
09/26/2007CN101042513A Control system capable of adjusting wavelengh of laser and method thereof
09/26/2007CN101042454A Light code division multiple access decoder and manufacturing method therefor
09/26/2007CN101042453A Optical cable segment with tapping connections for a communications infrastructure
09/26/2007CN100340076C High-density wavelength division multiplexer
09/26/2007CN100340075C Interleaving device/deinterleaver for making optical signal very less or not diffuse
09/26/2007CN100340074C 光传输系统 The optical transmission system
09/26/2007CN100340073C Improved optical modifier for maximizing nonreturn to zero modification
09/25/2007US7274882 Method and apparatus for monitoring the power level of two or more optical transmitters
09/25/2007US7274881 Optical line terminal and method that store the identity numbers of a number of optical network terminals that are associated with a single network end point
09/25/2007US7274880 Raman assisted EDFA system and method
09/25/2007US7274879 Compensation of temperature-induced dispersion drift in optical communication links
09/25/2007US7274878 Dispersion compensation method in optical communication system having optical add drop multiplexing capability
09/25/2007US7274877 Optical/radio local access network
09/25/2007US7274876 Integrated electrical/optical hybrid communication system with revertive hitless switch
09/25/2007US7274875 Optical channel power equalizer
09/25/2007US7274874 Idle-pattern output control circuit used in a Gigabit Ethernet-passive optical network
09/25/2007US7274872 System and method for subcarrier modulation as supervisory channel
09/25/2007US7274871 Optical transmission system with raman amplifiers comprising a supervisory system
09/25/2007US7274870 Apparatus and method for simultaneous channel and optical signal-to-noise ratio monitoring
09/25/2007US7274869 System and method for providing destination-to-source protection switch setup in optical network topologies
09/25/2007US7274837 Optical transmitter
09/25/2007US7274791 Quantum cryptographic system and method for achieving unambiguous state discrimination measurement of coherent light states
09/25/2007US7274755 Receiver
09/25/2007US7274737 EHF equalizer implemented with MEMs tap weight controls
09/25/2007US7274503 Distributed raman amplification
09/25/2007US7274303 Power strip with control and monitoring functionality
09/20/2007WO2007106177A2 Buffering schemes for optical packet processing
09/20/2007WO2007105278A1 Optical switch and optical packet buffer
09/20/2007WO2007104417A2 Data transmission in a system comprising structural textile units
09/20/2007WO2007104211A1 Wavelength division multiplexing system and residual dispersion compensating device and method thereof
09/20/2007WO2007104182A1 An optical transmission system for correcting the signal distortion in time-frequency domain and a method thereof
09/20/2007WO2005104735A3 System and method for wave vector multiplexed laser communication
09/20/2007US20070220572 Hybrid fiber optic and coaxial cable network node that contains a cable modem termination system
09/20/2007US20070218712 Connection arrangement and method for optical communications
09/20/2007US20070217795 Improvements Relating to Reception in Optical Networks
09/20/2007US20070217794 Method for measuring optical characteristics and system thereof
09/20/2007US20070217792 Optically transmitting apparatus, optically transmitting system and optically transmitting method
09/20/2007US20070217791 Optical communications systems, devices, and methods
09/20/2007US20070217788 Passive Optical Network System and Method for Protecting the Services of the Same
09/20/2007US20070217744 Low Polarisation Mode Dispersion (PMD) Optical Fiber Link, and Method of Making the Same
09/20/2007US20070217325 Distributed control in synchronizing remote units to host unit
09/20/2007US20070217324 Distributed control in synchronizing remote units to host unit
09/20/2007US20070216995 Optical fiber laser having improved efficiency
09/20/2007DE102006012133A1 Datenübertragung in einem System aus textiltechnischen Baueinheiten Data transfer in a system of technical textile units
09/20/2007DE10112511B4 Verfahren zur Qualitätsüberwachung und zur Übertragung von Netzmanagementinformationen in transparenten optischen Übertragungsnetzen Procedures for quality control and for the transmission of network management information in transparent optical transmission systems
09/19/2007EP1835640A2 Optical receiver and optical reception method compatible with differential quadrature phase shift keying
09/19/2007EP1834428A1 Optical pulse regeneration based on pulse temporal shaping
09/19/2007EP1834427A2 Method and apparatus for raman crosstalk reduction via idle data pattern control
09/19/2007EP1834386A2 System and method for optically powering a remote network component
09/19/2007CN200950591Y Error-correcting unit and automatic configured telecommunication apparatus having the same
09/19/2007CN200950168Y Single-arm lift-ring type unlocking device for photoelectric module
09/19/2007CN101040468A Level detector for optical receivers
09/19/2007CN101040467A Optical transceiver and method for coating the same