Patents
Patents for H04J 14 - Optical multiplex systems (27,009)
07/2008
07/08/2008US7397980 Dual-source optical wavelength processor
07/08/2008US7397979 Coherent optical detector and coherent communication system and method
07/08/2008CA2428939C Duplex reflective re-configurable optical add/drop multiplexer
07/08/2008CA2380121C Differential dense wavelength division multiplexing (ddwdm) in optical systems
07/03/2008WO2008080122A2 Systems and method for on-chip data communication
07/03/2008WO2008080077A1 Method and apparatus to facilitate transmitting data using multiple optical data streams
07/03/2008WO2008080071A1 Method and apparatus to facilitate multiplexing light in a shared optical conduit
07/03/2008WO2008079530A2 Transmission of signalling information in an ofdm communication system
07/03/2008WO2008077322A1 A network node and a buffer device and a scheduling method
07/03/2008WO2006099464A3 Systems and methods to detect collisions in channel sense multiple access communications
07/03/2008US20080159753 Optical transmission system with automatic signal level adjustment and startup functions
07/03/2008US20080159743 Method and system for controlling remote in a TDD optical repeater
07/03/2008US20080159742 Dwdm optical network planning method
07/03/2008US20080159741 System, Method and Apparatus for Polarization Mode Dispension Compensation and Demultiplexing Polarization Multiplexed Signals
07/03/2008US20080159740 Multi-dwelling unit optical fiber splitting unit
07/03/2008US20080158658 Distributed Raman amplifier and WDM optical transmission system
07/03/2008US20080158644 Polarization scrambler apparatus, transmission apparatus, repeating installation and polarization scrambler method
07/02/2008EP1940066A2 Optical switching method and optical switch
07/02/2008EP1940050A1 Monitoring control light transmission method and wavelength multiplex transmission device in wavelength multiplex transmission system
07/02/2008EP1938631A2 Identity-based networking
07/02/2008EP1938489A1 A wavelength-division multiplexed passive optical network for reducing degradation in noise characteristic of wavelength-locked fabry-perot laser diodes
07/02/2008EP1847043A4 Multi-wavelength optical cdma with differential encoding and bipolar differential detection
07/02/2008EP1714394A4 Ultra-wideband communication through a power grid
07/02/2008CN101213776A 光波长多路接入系统 Optical wavelength multiplexing access system
07/02/2008CN101213775A Dpsk modulation/demodulation method, and optical communication device and system using the method
07/02/2008CN101212273A 8-channel optical time division multiplex signal production system
07/02/2008CN100399111C Farady rotator and optical device comprising same
07/02/2008CN100399077C Optical-fiber and wave-division shared transmission line
07/01/2008US7394993 Dispersion compensation quantity setting method, receiving terminal station, and wavelength-multiplexing optical transmission system
07/01/2008US7394986 Flat top optical filtering component
07/01/2008US7394985 Wavelength access server (WAS) architecture
07/01/2008US7394984 Fiber access architecture capable of being seamlessly upgraded
07/01/2008US7394983 Method and apparatus for detecting optical switch fault by monitoring optical output transitions
07/01/2008US7394981 Optical communication management systems
07/01/2008US7394951 Optical signal level control apparatus
07/01/2008US7394753 Training premable in multipoint-to-point communication using orthogonal frequency division multiplexing
07/01/2008US7394589 Optical amplifier for wide band Raman amplification of wavelength division multiplexed (WDM) signal lights
06/2008
06/26/2008WO2008076432A1 Distributed antenna system for mimo technologies
06/26/2008WO2008074085A1 Non-linearity compensation in an optical transmission
06/26/2008WO2008045331A3 System and method for obtaining optical signal information
06/26/2008US20080152346 Method and system for a secure bi-directional line switched ring
06/26/2008US20080152345 Wavelength division multiplexing-passive optical network system
06/26/2008US20080152343 System for intercepting signals to be transmitted over a fiber optic network and associated method
06/26/2008US20080152341 Optical network transmission channel failover switching device
06/26/2008US20080151359 Optical transmission system and signal spectrum correction method
06/26/2008CA2673372A1 Non-linearity compensation in an optical transmission system
06/25/2008CN101208890A Methods and system for quantum key distribution over multi-user WDM network with wavelength routing
06/25/2008CN101207453A Apparatus and method for add/drop multiplexing among sub speed branch circuit signals
06/25/2008CN101207452A Transmitting equipment and receiving equipment
06/25/2008CN101207446A Dispersion compensator, optical transmission system and optical transmission method
06/25/2008CN101206285A Reconfigurable optical add-drop multiplexer which multiport can be extracted or pluggable
06/25/2008CN100397232C Cascade electric filter using one acousto-optic tunable filter and multiple narrow-band double refration filter
06/25/2008CN100397123C Narrow-band heat-light adjustable Farbry-Boro filter with flat-top responding
06/24/2008US7391974 Wavelength division multiplexing optical transmission equipment and method of amplifying optical wavelength division multiplexed signals
06/24/2008US7391973 Two-stage gain equalizer
06/24/2008US7391972 Method and apparatus for maintaining behavior of a network terminal
06/24/2008US7391969 Method and apparatus for pulse generation and adaptive pulse generation for optical communications
06/24/2008US7391712 Method and system for forward-looking tone allocation
06/24/2008US7391711 Method and system for adaptive modulation
06/24/2008US7391560 Multistage optical amplifier having tilt compensation feature
06/19/2008WO2008073131A1 System and method for transmitting optical markers in a passive optical network system
06/19/2008WO2008072945A1 Optical signal phase regenerator for formats of differential modulation with phase changes
06/19/2008WO2008071007A1 Method and system for multiplexing data for transmission
06/19/2008WO2008036976A3 Wireless over pon
06/19/2008US20080145057 Method and system for generating switching control signal separating transmission signal in optical repeater employing TDD scheme
06/19/2008US20080145056 Communications Method, Particularly For a Mobile Radio Network
06/19/2008US20080145055 System and method for implementing a high capacity unrepeatered optical communication system
06/19/2008US20080145054 Optical module with optical filter
06/19/2008US20080145053 Optical processing
06/19/2008US20080145052 Methods for the Optical Transmission of Polarization Multiplex Signals
06/19/2008US20080145051 Long reach optical network
06/19/2008US20080145050 System and method for improving the efficiency of routers on the Internet and/or cellular networks and/or other networks and alleviating bottlenecks and overloads on the network
06/19/2008US20080144823 Photon Detecting Device and Optical Communication System
06/18/2008EP1933487A2 System and method for protecting an optical network
06/18/2008EP1932033A2 Optical wavelength selective router
06/18/2008CN201075134Y Apyrexia array waveguide grating type wavelength division multiplexer
06/18/2008CN101204034A System and method for quantum key distribution over WDM links
06/18/2008CN101203792A Frequency-addressing matrix routing head for light beams
06/18/2008CN101203784A Undamaged tunable filter
06/18/2008CN101202603A Passive optical network system based on wavelength-division multiplex technique
06/18/2008CN100395972C Method and apparatus for implementing optical wavelength conversion function in communication system
06/18/2008CN100395971C Wavelength selection switcher
06/18/2008CN100395970C Digital clock recovery device in data communication system
06/18/2008CN100395969C Optical add and drop multiplexer (OADM)
06/18/2008CN100395585C Method for polarized quadrature modulating optical label based on residual sideband
06/18/2008CN100395570C 光纤 Optical fiber
06/17/2008US7389054 Optical communication apparatus and optical add/drop apparatus
06/17/2008US7389051 Illuminator including optical transmission mechanism
06/17/2008US7389050 Wavelength multiplexer/demultiplexing device
06/17/2008US7389049 Chromatic dispersion compensation controlling system
06/17/2008US7389048 Optical wavelength-division multiple access system and optical network unit
06/17/2008US7389047 Optical ring transmission network
06/17/2008US7389046 Simplified switching interconnect using wavelength division multiplexing
06/17/2008US7389043 Protection architecture for photonic switch using tunable optical filter
06/17/2008US7389017 Dense wavelength division multiplexing on coarse wavelength division multiplexing networks
06/17/2008US7388872 Dynamic communication channel allocation method and system
06/12/2008WO2008070531A1 Mechanism for tracking wavelengths in a dwdm network without specialized hardware
06/12/2008WO2008070441A1 Architecture to communicate with standard hybrid fiber coaxial rf signals over a passive optical network (hfc pon)
06/12/2008WO2008068811A1 Station-side terminator
06/12/2008WO2008067747A1 Method and system for band blocking in an optical telecommunication network