Patents
Sitemap › H04 - Electric communication technique › H04J - Multiplex communication › H04J 14 - Optical multiplex systems
Patents for H04J 14 - Optical multiplex systems (27,009)
12/2005
12/29/2005US20050286893 Method to provide caller's location in IP phone system, optical transmission system, optical connector, and optical network unit
12/29/2005US20050286892 Optical lan device
12/29/2005US20050286891 Optical-switch testing apparatus, optical-signal switching apparatus, optical-switch testing method, and control method for optical-signal switching
12/29/2005US20050286442 Multichannel ring and star networks with limited channel conversion
12/28/2005EP1610493A1 Network design device
12/28/2005EP1610484A1 Scalable optical add-drop multiplexer equipped with optical protection mechanism
12/28/2005EP1436931B1 Digital optical network architecture
12/28/2005CN1713558A Optical add/drop multiplexer having a banded channel configuration
12/28/2005CN1713557A Optical add/drop multiplexer having an alternated channel configuration
12/28/2005CN1713556A Selective waveband light network structure for supporting communication in light network unit group
12/28/2005CN1713555A Light channel shared protection control and its controller
12/28/2005CN1713550A Optical transmission system, and pumping light source stopping device and method to be used in same system
12/28/2005CN1234031C Device for increasing signal-to-noise ratio of dense wave division multiplex multiple wavelength light source
12/27/2005US6980747 Optically amplified receiver
12/27/2005US6980743 Transparent wavelength division multiplexing
12/27/2005US6980742 Wavelength control in optical WDM systems
12/27/2005US6980740 Apparatus for detecting raman gain in an optical transmission system
12/27/2005US6980713 Wavelength selector for optical application
12/27/2005US6980355 Wavelength-tunable amplified optical splitter
12/22/2005WO2005122452A2 Method and apparatus for spectrum deconvolution and reshaping
12/22/2005WO2005122451A1 Dual-source optical wavelength processor
12/22/2005WO2005122444A1 Optical communication apparatus and optical communication system
12/22/2005WO2005122442A1 Method for performing association in automatic switching optical network
12/22/2005WO2005121854A1 Optical interleaver
12/22/2005WO2005072363A3 Integrated optical multiplexer and demultiplexer for wavelength division transmission of information
12/22/2005US20050281558 Flexible band tunable add/drop multiplexer and modular optical node architecture
12/22/2005US20050281557 Optical add/drop multiplexer having a banded channel configuration
12/22/2005US20050281556 Optical switching apparatus and optical communication network system
12/22/2005US20050281555 Portable information terminal apparatus
12/22/2005US20050281505 Optical sensor multiplexing system
12/22/2005US20050281504 Flexible waveband aggregator and deaggregator and hierarchical hybrid optical cross-connect system
12/22/2005US20050281295 Optical add/drop multiplexer having an alternated channel configuration
12/22/2005US20050281250 Fiber optic synchronous digital hierarchy telecommunication network provided with a protection system shared on the network
12/22/2005CA2569408A1 Method and apparatus for spectrum deconvolution and reshaping
12/21/2005EP1608106A2 System and method for providing packetized video over an optical network
12/21/2005EP1608098A1 Optical add/drop multiplexer having an alternated channel configuration
12/21/2005EP1608097A2 Optical add/drop multiplexer having a banded channel configuration
12/21/2005EP1608096A1 Method for upgrading an optical transmission network, optical transmission network and associated optical transmission nodes
12/21/2005EP1607837A2 Portable information terminal apparatus
12/21/2005EP1606894A1 Optical transmission system
12/21/2005EP1495607B1 Transmission system
12/21/2005CN1710819A Portable information terminal apparatus
12/21/2005CN1233127C Compensation method for temperature correlated gain spectrum characteristic of L-band Er-doped fiber amplifier
12/21/2005CN1232845C Plane single-chip integrated acoustooptic wavelength route optical switch
12/20/2005US6978091 Methods and apparatus for generating local oscillation signals
12/20/2005US6978064 Variable optical filter and optical transmission system using same, and method of controlling variable optical filter
12/20/2005US6978062 Wavelength division multiplexed device
12/20/2005US6978059 Multi-channel passive dense wavelength division multiplexing module
12/20/2005US6977772 Direct optical amplifier correlating average level of main signal with level of pilot tone signal
12/20/2005US6977771 Optical amplifier supervisory control method in WDM communication system
12/15/2005WO2005119954A1 Two-stage optical bi-directional transceiver
12/15/2005WO2005119952A1 Circuit for transmitting signals in a network node, particularly for a channel card for an optical wavelength division multiplex (wdm) signal transmitting device
12/15/2005WO2005119921A2 Ultra-wideband communication through a wire medium
12/15/2005WO2005119313A2 Optical switches & actuators
12/15/2005WO2005109013A3 Efficient protection mechanisms in a ring topology network utilizing label switching protocols
12/15/2005WO2005025112A3 All optical variable buffer queue useful in optical packet networks
12/15/2005US20050276613 FEC enhanced system for an optical communication network
12/15/2005US20050276606 Wavelength division multiplexing passive optical network system and method of generating optical source
12/15/2005US20050276605 Method of upgrading an optical transmission network, an optical transmission network, and associated optical transmission nodes
12/15/2005US20050276604 Optical add/drop interconnect bus for multiprocessor architecture
12/15/2005US20050276603 Self-monitoring passive optical network
12/15/2005US20050276602 Optical transmitter and passive optical network using the same
12/15/2005US20050276563 Method and an improved device for controlling the power delivered at the output of a node of an optical network that switches bands of wavelengths
12/15/2005US20050276539 Lightwave circuit device
12/15/2005US20050276537 Dual-source optical wavelength processor
12/15/2005US20050276320 Signal transmission system and signal transmission method
12/15/2005US20050275921 Hitless switch for high-density integrated optics
12/15/2005CA2565709A1 Two-stage optical bi-directional transceiver
12/14/2005EP1605630A1 Optical node device, network control device, maintenance-staff device, optical network, and 3r relay implementation node decision method
12/14/2005EP1605614A1 Bi-directional optical transmission system, and master and slave stations used therefor
12/14/2005EP1605613A1 Optical signal transmission system and signal transmission method
12/14/2005EP1605611A2 Submarine observation appartus and submarine observation system
12/14/2005EP1013022B1 Arrangement and method relating to optical transmission
12/14/2005CN1708138A Method for realizing association optical interconnection in automatic exchanging optical network
12/14/2005CN1707992A Optical interleaver, filter cell, and component design with reduced chromatic dispersion
12/14/2005CN1707977A Signal transmission system and signal transmission method
12/14/2005CN1232066C Demultiplexing detector for WDM system
12/14/2005CN1231779C Constitution and control method for light switch matrix with shielding purpose
12/14/2005CN1231778C Constitution and control method for odd-port light switch matrix
12/13/2005US6975790 Apparatus for forming a WDM signal having orthogonally polarized optical channels
12/13/2005US6975789 Wavelength router
12/13/2005US6975446 Optical amplifier, method for compensating for temperature dependency of gain flatness of an optical amplifier and optical transmission path including optical amplifier
12/13/2005US6974942 Receiving apparatus, transmitting apparatus, and communication system
12/08/2005US20050273836 Changing communication mode in a CATV pathway using mute commands
12/08/2005US20050271395 Multi-pulse heterodyne sub-carrier interrogation of interferometric sensors
12/08/2005US20050271386 Method and apparatus for spectrum deconvolution and reshaping
12/08/2005US20050271385 Multiport optical amplifier with narrowcast power equalization
12/08/2005US20050271323 Optical interleaver
12/08/2005US20050271314 Optical add/drop device
12/08/2005US20050271093 Method and system for multiplying the repetition rate of a pulsed laser beam
12/08/2005US20050271090 Method and unit for setting a wavelength to a tunable laser
12/07/2005EP1603261A1 Methods and devices to minimize the optical loss when multiplexing optical signals from a plurality of tunable laser sources
12/07/2005EP1603257A2 Optical transmission device and optical communication system
12/07/2005EP1602188A1 Add-drop device and cross-connect device for wavelength multiplex signals
12/07/2005EP1602156A1 Method of manufacturing and aligning an etalon
12/06/2005US6973601 System and method for automatic optimization of optical communication systems
12/06/2005US6973271 System and method for communicating optical signals between a data service provider and subscribers
12/06/2005US6973269 Metropolitan networks based on fiber and free space access distribution system
12/06/2005US6973268 Bi-directional optical transmission using dual channel bands
12/06/2005US6973267 Autoprotected optical communication ring network
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