Patents for H04B 10 - Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication (73,125) |
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02/12/2004 | US20040026604 Optical transceiver |
02/12/2004 | DE20318098U1 Intra-red (IR) interface for serial GPS receiver receives data of serial GPS receiver in car with personal digital assistant (PDA) and evaluates them for car position evaluation without additional car board computer |
02/12/2004 | DE19841775B4 Teilnehmernetz mit optischer Faser Subscriber network with optical fiber |
02/12/2004 | DE10048460B4 Raman-Verstärker Raman amplifier |
02/12/2004 | DE10030476B4 Wellenlängen-Multiplexer und Wellenleitergitter in Array-Form mit Justierwellenleitern und Vorrichtung zur Justierung Wavelength division multiplexer and waveguide grating in array form with Justierwellenleitern and apparatus for adjusting |
02/12/2004 | DE10010453B4 Anordnung zur Erzeugung eines Wellenlängen-Multiplexsignals mit geringen Kanalabständen Arrangement for generating a wavelength-multiplexed signal with small channel spacings |
02/12/2004 | CA2494759A1 A system and method for increasing bandwidth efficiency and throughput of a data transmission network |
02/12/2004 | CA2494614A1 Transceiver with programmable signal parameters |
02/11/2004 | EP1388963A2 Wavelength division multiplexing passive optical network system |
02/11/2004 | EP1388961A1 Adaptive feedback control method for chromatic dispersion compensation |
02/11/2004 | EP1388960A1 Optical amplifier with automatic gain control |
02/11/2004 | EP1388959A2 System and method for programmably adjusting gain and frequency response in a 10-gigabit ethernet/fibre channel system |
02/11/2004 | EP1388958A2 Laser communication system |
02/11/2004 | EP0893932B1 System and method for transmitting information for amphibious traveling vehicle and system for controlling operation of the vehicle |
02/11/2004 | CN2603412Y Raman gain reel time dynamic controlled and compensated Raman optical fibre amplifier |
02/11/2004 | CN1475058A Network comprising converters between electronic and optical signal |
02/11/2004 | CN1475057A Method of power control in optical communication system |
02/11/2004 | CN1474533A Monitoring method and device for wave-length-division multiplexing optical signal/noise ratio |
02/11/2004 | CN1474532A High insulation degree wavelength management module |
02/11/2004 | CN1474521A Light transmission device and method of optimum light return-to-zero code receiving pulse width |
02/11/2004 | CN1474520A Optical network system detection method |
02/11/2004 | CN1474208A Method for improving pumping performance of remote pump using filter |
02/11/2004 | CN1474207A Conic optical fibre micro spherical discrete spectrum amplifier |
02/11/2004 | CN1474206A Dispersion stable low dispersion slope optical fibre for metropolitan area network |
02/11/2004 | CN1474205A Dispersion stable non-zero dispersion displacement single mode submarine optical fibre |
02/11/2004 | CN1474204A Dispersion stable three wave length window non-zero dispersion displacement single mode optical fibre |
02/11/2004 | CN1474203A Dispersion stable low dispersion slope sub-full wave opltical fibre |
02/11/2004 | CN1138377C Single-side zero-angle up-and-down carriers division multiplex/demultiplex and optical insertion multiplex devices |
02/11/2004 | CN1138359C Apparatus and method for improved connectivity in wireless optical communication systems |
02/11/2004 | CN1138358C Optical cable real time monitoring system |
02/11/2004 | CN1138357C Optical detecting unit and electric device using same |
02/11/2004 | CN1138355C Optical remote control interface system and method |
02/11/2004 | CN1138177C Optical device |
02/10/2004 | US6690894 Multilevel optical signals optimized for systems having signal-dependent and signal-independent noises, finite transmitter extinction ratio and intersymbol interference |
02/10/2004 | US6690893 Optical transmitter |
02/10/2004 | US6690890 Single fiber Sagnac interferometer based secure communication system |
02/10/2004 | US6690889 Device for compensating polarization dispersion in an optical transmission system |
02/10/2004 | US6690888 Method for establishing and maintaining optical, open-air communications link |
02/10/2004 | US6690886 Suppression of four-wave mixing in ultra dense WDM optical communication systems through optical fibre dispersion map design |
02/10/2004 | US6690884 Optical transmission systems including error correction and protection apparatuses and methods |
02/10/2004 | US6690861 Arrayed waveguide grating, arrayed waveguide grating module, arrayed waveguide grating module waveguide compensation method, optical communication system |
02/10/2004 | US6690859 Device for comparing wavelength values and multiplexing and a system for monitoring monochromatic sources |
02/10/2004 | US6690853 Tunable DWDM demultiplexer |
02/10/2004 | US6690847 Optical switching element having movable optically transmissive microstructure |
02/10/2004 | US6690508 Control system and method for an optical amplifier |
02/10/2004 | US6690506 Control architecture and method for optical amplifiers |
02/10/2004 | US6690505 Optical network equipment with gain transient control and automatic drift compensation |
02/10/2004 | US6690503 Fault tolerant optical amplifier |
02/10/2004 | US6690340 Light-emitting diode driving circuit and optical transmission module using the same |
02/10/2004 | US6690003 Laser actuated remote operator |
02/10/2004 | US6690002 Photodetector array and optical communication monitor module using the same |
02/05/2004 | WO2004012369A2 Methods and apparatus for improved communications networks |
02/05/2004 | WO2004012365A1 Tunable chromatic dispersion compensator |
02/05/2004 | WO2004012364A1 Optical amplifier control |
02/05/2004 | WO2004012363A1 Method and apparatus for maintaining an optical wireless link |
02/05/2004 | WO2004012309A2 Using optical solitons to increase figure-of-merit of laser beam deflection devices |
02/05/2004 | WO2004011950A2 High sensitivity, high resolution detection of signals |
02/05/2004 | WO2004011897A1 Auto-characterization of optical devices |
02/05/2004 | WO2003081789A3 Tunable pulse width generation of return-to-zero format for system optimization |
02/05/2004 | WO2003079078A3 Dispersion compensation optical fiber and optical transmission line using same |
02/05/2004 | WO2003076979A3 Split-band depressed-profile amplifier and system |
02/05/2004 | WO2003047145A3 Methods and devices to minimize the optical loss when multiplexing a plurality of tunable laser sources |
02/05/2004 | WO2002077573A3 Transceiver device for cooperation with an optical fiber |
02/05/2004 | WO2002075974A3 Wavelength stabilisation in optical communications systems |
02/05/2004 | WO2002071661A3 Optical communication system and apparatus for compensation or emulation of pmd effects |
02/05/2004 | US20040023631 Method and system for rejecting noise in information communication |
02/05/2004 | US20040022547 Kalman filter intensity noise subtraction for optical heterodyne receivers |
02/05/2004 | US20040022546 Method and apparatus for compacting data in a communication network |
02/05/2004 | US20040022545 Optical transport system architecture for remote terminal connectivity |
02/05/2004 | US20040022544 Transceiver with programmable signal parameters |
02/05/2004 | US20040022543 Optoelectronic transceiver having dual access to onboard diagnostics |
02/05/2004 | US20040022538 High sensitivity, high resolution detection of signals |
02/05/2004 | US20040022537 Laser communication system |
02/05/2004 | US20040022536 Broadcast/communication unified passive optical network system |
02/05/2004 | US20040022535 System and method for preventing signal loss in an optical communications network |
02/05/2004 | US20040022486 Eye-diagram mask for optical pulses |
02/05/2004 | US20040022339 Clock recovery circuit |
02/05/2004 | US20040022334 Digital iterative gain control |
02/05/2004 | US20040022306 Speed negotiation for serial transceivers |
02/05/2004 | US20040022304 Ultra-wideband communication though local power lines |
02/05/2004 | US20040022284 Jitter suppression techniques for laser driver circuits |
02/05/2004 | US20040021926 Laser pulse shaping device |
02/05/2004 | US20040021829 Multi-level optical signal generation |
02/05/2004 | DE19963802B4 Verfahren zur Phasensynchronisierung optischer RZ-Datensignale Method of phase synchronization of optical RZ data signals |
02/05/2004 | DE19959813B4 Synchrones digitales Nachrichtenübertragungssystem Synchronous digital communication system |
02/05/2004 | DE19936421B4 Optischer Hinzufügungs-Wegfall Multiplexer und den Multiplexer verwendende optische Wellenlängenmultiplexverbindung In addition, optical multiplexers and articulating eliminating the multiplexer used wavelength division multiplexed optical link |
02/05/2004 | DE19717926B4 Transceiver zur drahtlosen Datenübertragung Transceiver for wireless data transmission |
02/05/2004 | DE10228750A1 Verfahren zur Messung der Signal-Rauschabstände OSNR in einem Wellenlängen-Multiplex(-WDM)-Übertragungssystem Method for measuring the signal-to-noise ratios OSNR in a wavelength division multiplexing (-WDM) transmission system |
02/05/2004 | DE10147892B4 Verfahren zur Übertragung von mindestens einem ersten und zweiten Datensignal im Polarisationsmultiplex in einem optischen Übertragungssystem Method for transmitting at least a first and second data signal in polarization division multiplex in an optical transmission system |
02/05/2004 | DE10132584B4 Verfahren und Anordnung zur Ermittlung und Trennung von Einzelkanaleffekten bei der optischen Übertragung eines Wellenlängen-Multiplex(-WDM)-Signals Method and apparatus for determining and Separation of Single-channel effects in the optical transmission of a wavelength division multiplexing (-WDM) signal |
02/05/2004 | CA2494407A1 High sensitivity, high resolution detection of signals |
02/05/2004 | CA2493114A1 Methods and apparatus for improved communications networks |
02/05/2004 | CA2492326A1 Tunable chromatic dispersion compensator |
02/04/2004 | EP1387515A2 Method for assigning wavelengths in wavelength division multiplexing ring communication network |
02/04/2004 | EP1387511A2 Broadcast/communication unified passive optical network system |
02/04/2004 | EP1387510A1 One-core two-way optical transmission system |
02/04/2004 | EP1387508A2 All-optical regenerator retiming, reshaping and retransmitting on optical signal |
02/04/2004 | EP1387507A1 Optical communication system using multiple Raman Amplifiers with a flat total gain |
02/04/2004 | EP1387506A2 Jitter suppression techniques for laser driver circuits |
02/04/2004 | EP1387505A2 Kalman filter intensity noise substraction for optical heterodyne receivers |