Patents
Patents for H04J 14 - Optical multiplex systems (27,009)
08/2001
08/28/2001US6282017 Optical communication system and optical amplifier
08/28/2001US6282007 Optical timing detection
08/28/2001US6282005 Optical surface plasmon-wave communications systems
08/28/2001US6281998 Signal routing for fiber optic networks
08/28/2001US6281997 Dense WDM optical multiplexer and demultiplexer
08/28/2001US6281995 Use of cross tap equalization to reduce crosstalk arising from inadequate optical filtering in a wavelength division multiplexed optical link
08/23/2001WO2001061937A1 Optically bidirectional ring switching method and system therefor
08/23/2001WO2001061903A1 Dynamic programmable optical add/drop module
08/23/2001WO2001061871A2 Methods and apparatus for preventing deadbands in an optical communication system
08/23/2001US20010016100 Submarine optical gain equalizer, submarine optical transmission line and its installation method
08/23/2001US20010015842 Optical bit rate converter
08/23/2001US20010015841 Methods of and arrangements for buffering digital optical signals
08/23/2001US20010015840 Multi-channel light source generator in a WDM optical communication system
08/23/2001US20010015838 Optical communications system
08/23/2001US20010015837 EDFL multiple wavelelngth laser source
08/23/2001US20010015836 Node structure of upgradable wavelength division multiplexing system
08/23/2001CA2400054A1 Methods and apparatus for preventing deadbands in an optical communication system
08/22/2001EP1126739A1 Method of and arrangement for buffering digital optical signals
08/22/2001EP1126650A2 Optical communication system
08/22/2001EP1126649A2 Method and apparatus for providing a more efficient use of the total bandwidth capacity in a synchronous optical network
08/22/2001EP1126648A2 Equipment, transponder and methods for optical fiber transmission
08/22/2001EP1126638A2 Optical wavelength division multiplexing transmission system
08/22/2001EP1126293A2 Multiplexing/demultiplexing optical circuit
08/22/2001CN1309853A High-throughput, low-latency next generation internet networks using optical label switching
08/22/2001CN1309852A High-throughput, low-latency next generation internet networks using optical tag switching
08/22/2001CN1309541A Folded garment display hanger
08/21/2001US6279158 Dynamic bandwidth allocation
08/21/2001US6278549 Optical filter having a quartz substrate
08/21/2001US6278537 Light-signal transmitting apparatus, light-signal receiving apparatus, light-signal transfer apparatus and light-signal transfer method
08/21/2001US6278536 Optical transmission device for bi-directional optical communication
08/21/2001US6278535 SONET Jo byte message monitoring system
08/21/2001CA2164071C Optical communication system
08/17/2001CA2319905A1 Equipment, transponder and methods for optical fiber transmission
08/16/2001US20010014193 Optical coupler with wavelenght and polarization multiplexers
08/16/2001US20010013967 Multi-channel optical communication system that controls optical reflection for each channel and optical transmitting and receiving apparatuses therefor
08/16/2001US20010013964 Remodulating channel selectors for WDM optical communication systems
08/16/2001US20010013963 Access node for optical networks with variable-access wavelengths, user device for connection to such an access node, method for feeding a number of signals from a number of users into an optical network and using an access node and at least one user device for carrying out such a method
08/16/2001US20010013962 Method and apparatus for wavelength-channel tracking and alignment within an optical communications system
08/16/2001EP1124355A2 10 Gigabit ethernet mappings for a common lan/wan pmd interface
08/16/2001EP1123596A1 Method for channel adjustment of transmission signal power in a wavelength division multiplexing transmission system
08/16/2001EP1123595A2 Wdm transmitter and receiver
08/16/2001EP1123590A1 Method and apparatus for monitoring an optical wdm network
08/15/2001CN1308434A Passive optical network system in asynchronous transfer mode
08/15/2001CN1308432A Multiplex/demultiplex light path
08/15/2001CN1308246A Transient effect inhibitor for optical fiber amplifier in WDM system
08/15/2001CA2332391A1 Methods of and arrangements for buffering digital optical signals
08/14/2001US6275990 Transport of payload information and control messages on multiple orthogonal carriers spread throughout substantially all of a frequency bandwith
08/14/2001US6275623 Dynamically configurable spectral filter
08/14/2001US6275331 Optical amplifiers
08/14/2001US6275330 Apparatus and method for controlling a wavelength-multiplex optical amplifier
08/14/2001US6275322 Michelson phase shifter interleaver/deinterleavers
08/14/2001US6275314 Optical wavelength multiplex transmission method and optical dispersion compensation method
08/14/2001CA2197943C Transmission control method in a network system for interactively transmitting a signal between node devices and network system using the same
08/09/2001WO2001058204A2 Transparent optical switch
08/09/2001WO2001058203A2 Linear optical transmission system with failure protection
08/09/2001WO2001058057A1 Wavelength dispersion compensation module and optical transmission system including the same
08/09/2001WO2000072491A3 Method and system for increasing a number of information channels carried by optical waveguides
08/09/2001US20010012424 Wavelength multiplexing/demultiplexing unit, wavelength multiplexing/demultiplexing apparatus and wavelength multiplexing/demultiplexing method
08/09/2001US20010012148 Device for suppressing transient effect of optical fiber amplifier in WDM system
08/09/2001US20010012144 Multi-wavelength light source and discrete-wavelength-variable light source
08/09/2001US20010012141 Optical path managing device in an optical transmission network and a method thereof
08/09/2001DE10004290A1 Access-node for optical networks with variable access wavelengths - uses laser light sources which emit light at wavelengths of optical network light of which can be modulated in user device
08/09/2001CA2398716A1 Wavelength dispersion compensation module and optical transmission system including the same
08/08/2001EP1122905A2 Apparatus and method for wavelength multiplexing/demultiplexing
08/08/2001EP1122904A2 Access node for optical networks with variable access wavelengths
08/08/2001EP1122842A2 Method for optical direct amplification, and optical amplification repeater and optical transmission system using the same
08/08/2001EP1121777A1 Optical unidirectional ring network
08/08/2001CN1307768A Multiwavelength mode-locked dense wavelength division multiplexed optical communication systems
08/08/2001CN1307416A Device for setting standard wave length in photo-signal channel monitoring module
08/07/2001US6272154 Reconfigurable multiwavelength network elements
08/07/2001US6271962 System of controlling wavelength division multiplexed optical amplifier and method thereof
08/07/2001US6271960 Method and apparatus for wavelength conversion of signal light
08/07/2001US6271951 Telecommunications network
08/07/2001US6271950 Optical differential phase shift keying transmission system having multiplexing, routing and add/replace capabilities
08/07/2001US6271949 Optical communication system using wavelength-division multiplexed light
08/07/2001US6271948 Wavelength division multiplexed optical communication system
08/07/2001US6271947 Simultaneous wavelength-division multiplexing and broadcast transmission system
08/07/2001US6271946 Optical layer survivability and security system using optical label switching and high-speed optical header generation and detection
08/07/2001US6271945 Apparatus and method for controlling power levels of individual signal lights of a wavelength division multiplexed signal light
08/07/2001US6271944 Laser wavelength control in an optical communication system
08/07/2001CA2229360C Optical receiver and demultiplexer for free-space wavelength division multiplexing communications systems
08/02/2001WO2001056212A2 Digital signal processing optical transmitter
08/02/2001US20010010740 Device for setting reference wavelength in optical channel monitoring module
08/02/2001US20010010739 CDMA encoder-decoder, CDMA communication system, WDM-CDMA communication system
08/02/2001US20010010586 Light source used in wavelength multiplexing
08/01/2001EP1120926A1 Article comprising a single-stage all-pass optical filter
08/01/2001EP1120925A1 Optical amplification repeater and optical amplification repeating and transmitting system
08/01/2001EP1119952A1 Device, method, and system for implementing quality of service zero latency networks using dense wavelength division multiplexing
08/01/2001EP1119795A1 Optical filter, adjustable add-drop-continue module and circuit for bundled cross-connect functionality
08/01/2001EP1119788A1 Segmented complex fiber gratings
08/01/2001CN1306351A Method of transmitting data in communicating system
07/2001
07/31/2001US6269204 Method and system for monitoring of optical transmission lines
07/31/2001US6269200 All optical RF signal channelizer
07/31/2001US6269106 Method to provide information concerning a frequency band, a head-end, a network terminator and a terminal realizing such a method and a communication access network including such a head-end, such a network terminator and such a terminal
07/31/2001US6268955 Optical amplifier and wave length division multiplexed light transmission system
07/31/2001US6268951 Optical signal interleaver/deinterleavers
07/31/2001US6268945 Stable power control for optical transmission systems
07/31/2001US6268943 Optical SNR measurer in WDM optical transmitting device
07/31/2001CA2207504C Node in optical tdm network
07/26/2001WO2001054319A1 Method and apparatus for monitoring of data channels