Patents
Patents for H04J 14 - Optical multiplex systems (27,009)
01/2014
01/08/2014EP2681925A1 Wavelength management in multiple-wavelength passive optical networks
01/08/2014EP2681598A2 Intra-link spatial-mode mixing in an under-addressed optical mimo system
01/08/2014EP2681597A1 Dynamic spatial-mode allocation in an under-addressed optical mimo system
01/08/2014CN103503389A Condensed core-energy-efficient architecture for WAN IP backbones
01/08/2014CN103503339A Optical transmitter, signal transmission method and system
01/08/2014CN103502859A Multi-channel light-emitting device and methods of manufacture and use thereof
01/08/2014CN103501197A Multicast traffic grooming method for minimizing number of grooming nodes
01/07/2014US8625996 Optical transmitter, optical transmission method, and wavelength-selective variable delayer
01/07/2014US8625994 Directionless reconfigurable optical add-drop multiplexer systems and methods
01/07/2014US8625993 Wavelength-switched optical add-drop multiplexer with wavelength broadcasting capability
01/07/2014US8625992 Method and apparatus for enabling multiple optical line termination devices to share a feeder fiber
01/07/2014US8625991 Amortization of expensive optical components
01/07/2014US8625990 Optical line terminal, remote node unit, optical transmission method and system thereof
01/07/2014US8625989 Multi-laser transmitter optical subassemblies for optoelectronic modules
01/07/2014US8625988 Hybrid switch for optical networks
01/07/2014US8625984 Transmission device, control device, and method of detecting erroneous connection of signal line
01/03/2014WO2014001738A1 Optical signal routing
01/03/2014WO2014000308A1 Wavelength adjusting method, device, and system
01/03/2014WO2014000298A1 Self-injection laser and passive optical network
01/03/2014WO2014000149A1 Optical transceiver module, optical communication system and optical signal transmitting-receiving method
01/02/2014US20140003817 Transmit and receive mimo protocols for light array communications
01/02/2014US20140003815 Photonic Integrated Circuit Based Phase Conjugation Devices and Methods
01/02/2014US20140003814 Processing three-quadrature amplitude modulation (3qam) traffic using a four-bit phase modulation scheme
01/02/2014US20140003813 Forward error correction for an optical transport system
01/02/2014US20140003811 Multiband reconfigurable optical add-drop multiplexing with converged signal addition and removal
01/02/2014US20140003809 Method and apparatus for performing an automatic power adjustment for an optical signal
01/01/2014EP2680606A1 Optical signal routing
01/01/2014EP2680472A1 Optical network unit for an optical access network
01/01/2014EP2678956A1 Digital signal-to-signal beat noise for filter-less coherent receiving system
01/01/2014CN203377884U Wavelength division multiplexing (WDM) technology based electric power communication device
01/01/2014CN203376496U A pluggable wavelength division multiplexer
01/01/2014CN103493413A Diverging device with OADM function and wavelength division multiplexing optical network system and method therefor
01/01/2014CN103490879A Self-correcting quantum secret key distribution method and system
01/01/2014CN103490846A Wdm optical network system
01/01/2014CN103490816A System and method for passive transmission of microwave frequency signals
01/01/2014CN102308504B Wavelength access method and device
01/01/2014CN102255801B Routing method and device in wavelength division network
01/01/2014CN102255664B Polarization multiplexing communication method and system based on time interleaving return to zero code
01/01/2014CN101944950B Processing method and device for loading extra service in optical transport network (OTN)
01/01/2014CN101807955B I-Q modulation transmitter and method for controlling phase biasing between I-Q paths
01/01/2014CN101729182B Single-fiber bidirectional looped network protection method, system and device
12/2013
12/31/2013US8620161 Wavelength multiplexing unit and wavelength multiplexing method of wavelength multiplexing optical transmission system
12/31/2013US8620160 Optical transmission apparatus
12/31/2013US8620159 Modulation in an optical network
12/31/2013US8620158 Communications device with discriminator and wavelength division multiplexing for generating intermediate frequency signal and related methods
12/31/2013US8619807 High-capacity packet-switched ring network
12/31/2013US8619115 Video communication system and method for using same
12/31/2013CA2742204C Wavelength adjusting method, apparatus, and system
12/31/2013CA2613105C Method and system for hitless tunable optical processing
12/27/2013WO2013191844A1 Method and apparatus for providing a non-overlapping ring-mesh network topology
12/27/2013WO2013190110A1 Method for the adaptive configuration of the transmission spectrum in wdm-pons
12/27/2013WO2013189322A1 Registration activation method, system and device for optical network unit
12/27/2013WO2013189321A1 Tuning method, system and device for wavelength in passive optical network
12/26/2013US20130343766 Optical communication system and method
12/26/2013US20130343760 System and method for optical transmission
12/26/2013US20130343754 Variable-length training fields in coaxial communications
12/26/2013US20130343753 Methods and systems for implementing time-division duplexing in the physical layer
12/26/2013US20130343750 Communications network using adaptable fec
12/25/2013EP2676391A1 Processing data in an optical network
12/25/2013EP2564531B1 Optical access network
12/25/2013EP2385637B1 Methods and devices for modulating a signal
12/25/2013EP2265035B1 Method and equipment for buffering optical packets
12/25/2013CN103477582A Passive optical network optical network terminal apparatus and configuration method
12/25/2013CN103477581A Secure data transmission using spatial multiplexing
12/25/2013CN103475955A Hybrid TWDM-PON system of downlink DPSK modulation and uplink direct modulation
12/25/2013CN103475440A Impairment aware route and wavelength assignment method supporting differentiated services
12/25/2013CN103475439A Channel wavelength selection method based on TDM/WDM mixed PON structure
12/25/2013CN103475412A Optical fiber network multichannel transmission system
12/25/2013CN102427567B Asynchronous multi-wavelength mesh network adaptive node system based on optical packet switching
12/25/2013CN102075282B System and method for realizing dynamic wavelength scheduling and protection functions in wavelength division multiplexing passive optical network
12/25/2013CN101958753B Demultiplexing receiver for realizing flattop steep edge by adopting electric control method
12/25/2013CN101944150B Method for automatically generating wave channel graph by programming in wavelength division system
12/24/2013US8615595 Automatic protocol switching
12/24/2013US8615169 PON system and redundancy method
12/24/2013US8615168 PON ONU configured in the form of a gigabit interface converter (GBIC)
12/24/2013US8615167 WDM optical transmission system and control method thereof
12/24/2013DE102012210581A1 Verfahren zur adaptiven Konfiguration des Sendespektrums in WDM-PONs Method for adaptive configuration of the transmission spectrum in WDM-PONs
12/19/2013WO2013188592A1 Optical mode-division multiplexing using selected mode coupling between an optical resonator and a signal transmission line
12/19/2013WO2013187474A1 Optical network system, optical switch node, master node, and node
12/19/2013WO2013186842A1 Optical transmission apparatus
12/19/2013WO2013186677A1 Methods and apparatus for a passive access subnetwork
12/19/2013WO2013185848A1 Traffic recovery at interworking nodes
12/19/2013WO2013185797A1 Security monitoring for optical network
12/19/2013WO2013185796A1 Using security levels in optical network
12/19/2013WO2013185645A1 Method and device for establishing frequency slot channel
12/19/2013WO2013185338A1 Disaster recovery method, device and disaster recovery system of optical communication system
12/19/2013WO2013185306A1 Wavelength configuration method, system, and device for multi-wavelength passive optical network
12/19/2013WO2013185287A1 Wavelength selection switch
12/19/2013US20130336659 Multiplexed pulse modulation using superposition
12/19/2013US20130336658 Spectrum efficient optical transport system with superchannels
12/19/2013US20130336657 Method for configuring transmission interfaces of devices communicating via a band-pass filter
12/19/2013US20130336656 Simplified Serial Data Over Optical Fiber for Remote Receiver/Sensor Applications
12/19/2013US20130336655 Method of Operating a Primary Optical Node and a Secondary Optical Node
12/19/2013US20130336654 Optical receiver, polarization demultiplexer, and optical receiving method
12/19/2013US20130336653 Methods and apparatus for a passive access subnetwork
12/18/2013EP2675089A1 Method of operating a primary optical node and a secondary optical node
12/18/2013EP2673905A2 Polarization multiplexed signaling using time shifting in return-to-zero format
12/18/2013EP2673904A1 Method and device for fiber access physical layer unbundling using multiple uplink cards
12/18/2013EP2673668A1 An optical pass-band filtering method and device and a device for inserting/extracting a frequency multiplexed optical sub-band into/from an optical signal
12/18/2013EP2249493B1 Method and equipment for operating a coherent optical packet receiver
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