Patents for H04J 14 - Optical multiplex systems (27,009) |
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07/26/2001 | WO2001053888A2 Optical attenuator having geometrically biased branching waveguide structure |
07/26/2001 | WO2001053864A1 Wavelength-selective module |
07/26/2001 | WO2000057226A8 Configurable optical add/drop device |
07/26/2001 | US20010009469 Optical pulse position detecting circuit and an optical pulse generating apparatus and their methods |
07/26/2001 | US20010009465 WDM optical transmission system |
07/26/2001 | DE10002851A1 Optical add-drop-multiplexer |
07/26/2001 | DE10000255A1 Channel equalisation device for wavelength division multiplex transmission path - has optical spectrograph for channel separation coupled to transmission path via optical circulator with subsequent equalisation of powers of separated channels |
07/25/2001 | EP1119119A1 Local generator with PLL for phase synchronization of clock signal with bits in optical pulse stream |
07/25/2001 | EP1118181A1 Wdm-channel equalizer |
07/25/2001 | EP1118180A2 Improvement in optical multichannel systems |
07/25/2001 | EP1118179A1 Wdm optical communication system having reduced loss and cross-talk |
07/25/2001 | CN1305668A Protection of WDM-channels |
07/24/2001 | US6266460 Large-channel-count programmable wavelength add-drop |
07/24/2001 | US6266169 Optical transmission equipment which transmits an amplified optical data signal and an optical surveillance signal |
07/24/2001 | US6265999 High-speed serial-to-parallel and analog-to-digital conversion |
07/19/2001 | WO2001052451A2 System and method for measuring in-band cross-talk in optical communication systems |
07/19/2001 | US20010008453 Optical transmission system and channel assigning method |
07/19/2001 | US20010008452 Wavelength multiplexing optical transmission system |
07/19/2001 | US20010008451 Optical transmission system and optical transmission apparatus used therefor |
07/19/2001 | US20010008450 Drive method for a plurality of acousto-optic filters, acousto-optic filter apparatus, and selective wavelength extension method |
07/19/2001 | DE19963802A1 Verfahren zur Phasensynchronisierung optischer RZ-Datensignale Method of phase synchronization of optical RZ data signals |
07/19/2001 | CA2397231A1 System and method for measuring in-band cross-talk in optical communication systems |
07/18/2001 | EP1117202A2 Method of communicating data in communication systems |
07/18/2001 | EP1116346A2 Tuneable add/drop multiplexer |
07/18/2001 | EP1116054A1 High-q optical microwave processor using hybrid delay-line filters |
07/17/2001 | US6263138 Optical fiber for compensating chromatic dispersion of a positive chromatic dispersion optical fiber |
07/17/2001 | US6263130 Wideband optical service channel for wave division networks |
07/17/2001 | US6263127 Free-space/arrayed-waveguide router |
07/17/2001 | US6262823 System for optical time domain multiplexing of digital signals |
07/17/2001 | US6262822 Circuit for monitoring optical signals |
07/17/2001 | US6262821 Optical spectral multiplexer for inserting and extracting |
07/12/2001 | WO2001050664A2 Method for synchronising the phase of optical return-to-zero (rz) data signals |
07/12/2001 | WO2001050663A1 Electromagnetic matched filter based multiple access communications systems |
07/12/2001 | WO2001050662A1 Dwdm catv return system with up-converters to prevent fiber crosstalk |
07/12/2001 | WO2001050661A2 System for equalizing wdm channels |
07/12/2001 | US20010007509 Wavelength converter and wavelength division multiplexing transmission method using same |
07/12/2001 | US20010007506 Optical transmitter, wavelength (division) multiplex optical transmitter, time division multiplex optical transmitter, optical receiver, wavelength (division) multiplex optical receiver, time division multiplex optical receiver, and an optical trasmission system using these devices |
07/12/2001 | CA2396121A1 Method for synchronizing the phase of optical return-to-zero (rz) data signals |
07/11/2001 | EP1115222A2 CDMA encoder-decoder, CDMA communication system, WDM-CDMA communication system |
07/11/2001 | EP1114534A1 Method and apparatus for byte-by-byte multiplexing of data over parallel communication links |
07/11/2001 | EP1114531A1 Method and system for detecting loss of signal in wavelength division multiplexed systems |
07/11/2001 | EP1114349A2 Optical signal interleaver |
07/11/2001 | CN1303195A Optical wave interleaving transmitter and receiver modules |
07/11/2001 | CN1303023A System based on controlling transmission function of photoamplifier |
07/11/2001 | CN1068484C Multi-channel optical fiber communication system |
07/10/2001 | US6259836 Optical frequency shifter and transmission system |
07/10/2001 | US6259723 Data communication system |
07/10/2001 | US6259702 Server system for delivering signal and delivery method of signal therein |
07/10/2001 | US6259556 Optical fibre amplifier having a controlled gain |
07/10/2001 | US6259555 Multi-band amplification system for dense wavelength division multiplexing |
07/10/2001 | US6259553 Optical communication system and optical amplifier |
07/10/2001 | US6259552 Optical wavelength converter |
07/10/2001 | CA2224851C Optical arrangement for amplifying wdm signals |
07/10/2001 | CA2211644C Optical demultiplexor |
07/05/2001 | WO2001048962A1 Optical management channel for wavelength division multiplexed systems |
07/05/2001 | WO2001048961A1 Optical apparatus for dropping and/or adding optical signals |
07/05/2001 | WO2001048938A1 Protection in mixed optical wdm systems |
07/05/2001 | US20010006568 11/2 X 2 Optical switch |
07/04/2001 | EP1113613A2 Wavelength converting apparatus and wavelength division multiplexing system using same |
07/04/2001 | EP1113597A2 System based control of optical amplifier transmission functions |
07/04/2001 | EP1113587A1 Protection in mixed optical WDM systems |
07/04/2001 | EP1112517A1 Time-wavelength multiple access optical communication systems and methods |
07/04/2001 | CN1302129A Nodal structure of staging wave separation shared system |
07/03/2001 | US6256433 Expandable interleaving optical add/drop filter module |
07/03/2001 | US6256432 Polarization independent all-optical demultiplexer |
07/03/2001 | US6256431 WDM multiplexer |
07/03/2001 | US6256428 Cascading of tunable optical filter elements |
07/03/2001 | US6256427 Process for creating several data circuits on an optical fiber and device for embodiment of the process |
07/03/2001 | US6256141 Optical amplification apparatus |
07/03/2001 | US6256127 Modulation format adjusting optical transponders |
07/03/2001 | US6256126 NB-WDM system and method for establishing wavelength number information of same |
07/03/2001 | US6256125 WDM optical transmission system |
07/03/2001 | US6256124 Combination photonic time and wavelength division multiplexer |
06/30/2001 | CA2328562A1 Multi-pass folded interleaver/deinterleavers |
06/28/2001 | WO2001047164A1 Two-fiber interconnected ring architecture |
06/28/2001 | WO2001047163A1 Dispersion compensation for optical systems |
06/28/2001 | WO2001047159A1 Method and apparatus for transporting gigabit ethernet and fiber channel signals in wavelength-division multiplexed systems |
06/28/2001 | WO2001047151A1 Optical power balancer for optical amplified wdm networks |
06/28/2001 | WO2001046731A2 Reconfigurable add/drop multiplexer for fiber optic networks |
06/28/2001 | WO2001046723A2 Method for altering the refractive index of optical fibers using stress |
06/28/2001 | WO2000075711A3 Fiber optic smart switch |
06/28/2001 | US20010005271 Device for applying time-delays to optical signals |
06/28/2001 | DE19959813A1 Synchrones digitales Nachrichtenübertragungssystem Synchronous digital communication system |
06/28/2001 | CA2395303A1 Two-fiber interconnected ring architecture |
06/28/2001 | CA2394786A1 Method for altering the refractive index of optical fibers using stress |
06/27/2001 | EP1111955A2 A strictly non-blocking wavelength division multiplexed (WDM) cross-connect device for use in a network |
06/27/2001 | EP1111953A2 An optical switching node and method for operating same |
06/27/2001 | EP1111831A2 Method of deactivating fiber resources in optical ring networks |
06/27/2001 | EP1111820A1 Apparatus for applying a delay |
06/27/2001 | EP1110343A1 Wdm ring network |
06/27/2001 | EP1110338A1 Method and apparatus for optical system link control |
06/27/2001 | CN1301094A Optical deplexing/complexing device |
06/27/2001 | CN1301093A Complete non-blocked wave division multiple address cross connecting apparatus |
06/26/2001 | US6252719 Beam splitter/combiner module |
06/26/2001 | US6252711 Polarization diversity for birefingent filters |
06/26/2001 | US6252688 Optical wavelength multiplex transmission method and optical dispersion compensation method |
06/26/2001 | US6252687 Optical wavelength multiplex transmission method and optical dispersion compensation method |
06/26/2001 | CA2200300C Efficient optical wavelength multiplexer/de-multiplexer |
06/23/2001 | CA2327904A1 A strictly non-blocking wavelength division multiplexed (wdm) cross-connect device for use in a network |
06/23/2001 | CA2317907A1 Method and apparatus for providing a more efficient use of the total bandwidth capacity in a synchronous optical network |