Patents
Patents for H04J 14 - Optical multiplex systems (27,009)
11/2005
11/03/2005WO2005103783A2 Flexible band tunable filter
11/03/2005US20050244165 Scalable transceiver based repeater
11/03/2005US20050244164 Dispersion compensating method, optical transmission system, and optical transmission apparatus
11/03/2005US20050244162 All-optical signal regeneration
11/03/2005US20050244161 Optical transmission system, optical transmission and reception apparatus, optical transmission apparatus, optical wavelength channel connection recognition control method and wavelength allocation apparatus
11/03/2005US20050244160 Optical transceiver for compensating for loss due to transmission distance in passive optical network
11/03/2005US20050244159 Optical wavelength-conversion
11/03/2005US20050244158 Method and apparatus for a variable rate pipe on a linear connection
11/03/2005US20050244156 Optically-controlled optical network and switching node therefor
11/03/2005CA2562652A1 Tunable laser source with optical wavelength addressing
11/02/2005EP1592159A2 Optical transmission network with tree structure
11/02/2005EP1590902A2 Method and apparatus for testing network data signals in a wavelength division multiplexed optical network
11/02/2005EP1590704A2 Multiport optical amplifier with narrowcast power equalization
11/02/2005CN2738479Y Rail monitoring system based on wave divided multiplex distribution type optical fibre
11/02/2005CN1225859C Capacity upgrading method for dense wavelength division multiplexing optical fiber transmission system
11/01/2005US6961525 Method for channel balance
11/01/2005US6961522 Automatic raman gain and tilt control for ultra-long-distance dense WDM optical communication system
11/01/2005US6961521 Method and apparatus for transmitting a bit interleaved optical data stream on an optical network
11/01/2005CA2338151C Ultra-highspeed packet transfer ring network
10/2005
10/27/2005WO2005101712A1 An apparauts for implementing optical channel shared protection in wdm system and the method thereof
10/27/2005WO2005101703A1 Optical signal monitoring system
10/27/2005US20050238362 Dispersion compensation quantity setting method, receiving terminal station, and wavelength-multiplexing optical transmission system
10/27/2005US20050238356 System and method for wave vector multiplexed laser communication
10/27/2005US20050238355 Device for the switching of optical switch per IP address
10/27/2005US20050238354 System, method, and product for increased signal and reduced noise detection
10/27/2005US20050238353 Fibre channel transparent switch for mixed switch fabrics
10/27/2005US20050238283 System for optical demultiplexing wavelength bands
10/27/2005US20050237974 Tree optical transmission network
10/27/2005US20050237950 System, method and apparatus for dynamic path protection in networks
10/27/2005US20050237600 Optical amplifier and optical communication system
10/26/2005EP1588512A2 Transmitter and method for transmitting messages on an optical fiber
10/26/2005EP1588511A1 Output stage for carrying out wdm message transmission and methods for exchanging full light sources in an output stage of this type
10/26/2005EP1588510A2 Periodic optical packet switching
10/26/2005EP1405449B1 Control of parameters in a global optical controller
10/26/2005EP1266471B1 Device and method for optical add/drop multiplexing
10/26/2005EP1260043B1 Arrangement for producing a wavelength-multiplex signal with small interchannel spaces
10/26/2005CN1688909A Optical cross connect apparatus and method
10/26/2005CN1225095C Wave length flexible light retransmission device used in bidirectional single optical fiber wave division multiplexing system testing
10/26/2005CN1224853C Cyclic array waveguide raster multiplexer/demultiplexer
10/25/2005US6959153 Dynamically reconfigurable add/drop multiplexer with low coherent cross-talk for optical communication networks
10/25/2005US6959151 Communication network
10/25/2005US6959149 Power balancing in DWDM optical networks
10/25/2005US6959128 Coupler-based optical cross-connect having a regeneration module
10/25/2005US6958908 Compact enclosure for interchangeable SONET multiplexer cards and methods for using same
10/20/2005WO2005099149A1 Method for implementing data multiplex and virtual concatenation
10/20/2005WO2005099148A1 Wavelength division multiplexing passive optical network having multiple branches of optical distribution
10/20/2005WO2005099134A1 Capacity expansion method for optical transmission link network without service interruption
10/20/2005US20050232311 Automatic update of squelch tables for optical network applications
10/20/2005US20050232144 Method for selecting a restoration path in a mesh network
10/19/2005EP0981869B1 Modulation format adjusting optical transponders
10/19/2005CN1685644A A system and method for increasing bandwith efficiency and throughput of a data transmission network
10/19/2005CN1684381A Realizing method and device for optical path shared protection in wave division complex system
10/19/2005CN1683954A 光衰减系统 Optical attenuation system
10/19/2005CN1683951A Multiple laser beam recombiner
10/19/2005CN1224210C Quantum encoder whose polarization state is modulated by phase and decoder and its application
10/19/2005CN1224205C WDM switch with OADM and control method thereof
10/19/2005CN1224197C 光学通讯链路 Optical communication link
10/19/2005CN1224195C Large city remote optical communication network comprising ring core
10/19/2005CN1224192C Clock synchronous monitoring method and system for OSC signal in wavelength multiplexing system
10/18/2005US6956998 Compact optical delay lines
10/18/2005US6956687 Optical blocking filter having an array of micro-mirrors
10/13/2005WO2005096534A1 Low-density wavelength multiplex optical transmission system and low-density wavelength multiplex optical transmission method
10/13/2005WO2005096527A1 Method and apparatus for optical transmission of data
10/13/2005WO2005067188A3 Delay waveguide and optical functional circuit using same
10/13/2005US20050226638 Optical signal transmission
10/13/2005US20050226634 Discrimination phase margin monitor circuit, transmitting/receiving device and communication system
10/13/2005US20050226632 Signal transmission apparatus and a method of signal transmission
10/13/2005US20050226630 Optical bypass method and architecture
10/13/2005US20050226629 Dispersion compensation method and compensation node apparatus
10/13/2005US20050226628 Method and device for wavelength dispersion compensation
10/13/2005US20050226624 Optical pulse position modulation discriminator
10/13/2005US20050226623 Optical device and method of converting wdm signals into an otdm signal and vice versa
10/13/2005US20050226622 Underwater repeater employing rare earth element doped fiber amplifier, Raman assist and optical pump source sparing
10/13/2005US20050226621 Optical wavelength add-drop multiplexer
10/13/2005US20050226620 Four-port wavelength-selective crossbar switches (4WCS) using reciprocal WDM mux-demux and optical circulator combination
10/13/2005US20050226619 Add/drop node for an opical communications network
10/13/2005US20050226618 Network transceiver for extending the bandwidth of optical fiber-based network infrastructure
10/13/2005US20050226617 Digital image transmitter
10/13/2005US20050226616 Method to demultiplex wavelengths of light
10/13/2005US20050226615 Phase-encoded optical code division multiple access
10/13/2005US20050226553 Optical filtration device
10/13/2005US20050226551 Optical cross-connector containing multi-stage clos network in which a single-stage matrix comprises one stage of the clos network
10/13/2005US20050226550 Control method and control apparatus of optical device
10/13/2005US20050225844 Optical amplifier apparatus
10/13/2005US20050225843 Control method of optical fiber amplifier and optical transmission system
10/13/2005CA2561559A1 Undersea optical transmission system employing low power consumption optical amplifiers
10/12/2005EP1585244A1 Hardware functional partitioning in a system platform of a telecommunication network element
10/12/2005EP1584147A2 Amplified optical ring transmission system
10/12/2005EP1371154B1 System and method for an optical information transmission
10/12/2005CN1682472A Method for the transmission of optical polarization multiplex signals
10/12/2005CN1681355A Hardware functional partitioning method and device in a system platform of a telecommunication network element
10/12/2005CN1681233A Realizing method of data multiplexing and virtual form
10/12/2005CN1223133C Light signal modulation method, transmission method and system in wavelength division multiplexing light transmission system
10/12/2005CN1223132C Method and apparatus for implementing modulation in optical transmission system
10/12/2005CN1223115C Method of utilizing RF/microwave mixing techniques to select given band of optical transmission
10/12/2005CN1222821C Optical channel protector and method based on WDM layer
10/12/2005CN1222820C Equalization method and apparatus for long distance transmitting optical power
10/12/2005CN1222796C Polarization mode dispersion compensation process and compensator thereof
10/12/2005CN1222795C Two-dimension optical switcvh matrix made by adopting double piezoelectric crystal chip driver and its method
10/11/2005US6954593 Burst optical communication apparatus