Patents
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)
05/2001
05/17/2001WO2001035553A1 Channel synchronisation by dispersive fibre in a wavelength division multiplexing transmission system
05/17/2001WO2001035552A1 Battery-powered ir transmitter having constant power output
05/17/2001WO2001035551A1 Laser and microwave hybrid communication methods and systems
05/17/2001WO2001035539A2 Opto-electronic devices for processing and transmitting rf signals based on brillouin selective sideband amplification
05/17/2001WO2001035137A1 Bus configuration for optically interconnecting a plurality of calculation units
05/17/2001WO2001035135A1 Method and apparatus for stabilizing attenuators in optical networks
05/17/2001DE19948378C1 Einrichtung und Verfahren zur Bestimmung des Übertragungsverhaltens von opto-elektronischen Verbindungen sowie deren Verwendung Apparatus and method for determining the transmission behavior of opto-electronic compounds and their use
05/17/2001CA2387689A1 Opto-electronic devices for processing and transmitting rf signals based on brillouin selective sideband amplification
05/16/2001EP1100284A2 Optical router
05/16/2001EP1100217A2 Device for compensating polarization mode dispersion in an optical communication system
05/16/2001EP1100216A2 Recovering data encoded in infrared signals
05/16/2001EP1099965A2 Optical fiber delay lines for digital signal processing
05/16/2001EP1099322A1 High-throughput, low-latency next generation internet networks using optical label switching
05/16/2001EP1099319A1 Photonic integrated circuit for optical cdma
05/16/2001EP1099318A1 Improved optical fiber amplifier control
05/16/2001EP1099200A1 Rfid system for detecting low power resonant tags
05/16/2001CN1295748A Programmable optical add/drop multiplexer
05/16/2001CN1295743A Optical fibre amplifier having controlled gain
05/16/2001CN1295742A Optical wavelength converter
05/16/2001CN1295710A Optical data storage system utilizing polarization maintaining optical fiber
05/16/2001CN1295709A Optical data storage system with means for reducing noise from spurious reflections
05/16/2001CN1295708A Low noise optical storage system based on an optical polarimetric delay line
05/16/2001CN1295394A Optical cross connection node for crossing between fiber link and wavelength groups
05/16/2001CN1295384A Laser and microwave hydrid communication method and system
05/16/2001CN1295258A Dispersion compensator
05/15/2001US6233261 Optical communications system
05/15/2001US6233091 Optical amplifier unit control methods, optical amplifier systems and systems which use the methods and amplifier systems
05/15/2001US6233090 Optical amplifier
05/15/2001US6233082 Optical transmitter for WDM systems
05/15/2001US6233080 Crosstalk-free signal source for dense wavelength division multiplexed systems
05/15/2001US6233079 Light-signal transmitting apparatus, light-signal receiving apparatus, light-signal transfer apparatus and light-signal transfer method
05/15/2001US6233078 Photo signal amplification transmission system
05/15/2001US6233077 Remodulating channel selectors for WDM optical communication systems
05/15/2001US6233076 Optical communications system
05/15/2001US6233075 Optical layer survivability and security system
05/15/2001US6233073 Diagnostic injection of transmission errors in fiber optic networks
05/15/2001US6233072 Method and system for restoring coincident line and facility failures
05/15/2001US6232842 Amplifying circuit and optical receiver comprising the same
05/15/2001US6232817 Temperature stabilization of a predistorter with voltage supply
05/15/2001CA2074985C Optoelectronic integrated circuit device
05/12/2001CA2324201A1 Multi-fiber digital delay line
05/10/2001WO2001033854A1 System having an impulse noise filter means
05/10/2001WO2001033758A1 A device and a method for optical multiplexing/demultiplexing
05/10/2001WO2001033757A2 Method and system for communication protection
05/10/2001WO2001033756A2 Method and system for transmitting optical communication signals
05/10/2001WO2001033750A1 Optical transmission device and optical repeating device
05/10/2001WO2001033749A1 Method and system for transmitting short messages to a portable ir transceiver
05/10/2001WO2001033748A1 Dual rf/ir communication device and method of use thereof
05/10/2001WO2001033747A1 Optical data network
05/10/2001WO2001033745A2 Method and device for optimizing an optical transfer signal modulated with a binary data signal
05/10/2001WO2000070425A3 Optical module and method of making
05/10/2001DE19946487A1 Optical protection module for optical network topologies
05/10/2001DE19943739A1 Vorrichtung und Verfahren zum Laufzeitausgleich Apparatus and method for time alignment
05/09/2001EP1098461A2 Performance monitoring for optical transmission system
05/09/2001EP1098459A2 Synchronisation system of a local oscillator in an optical homodyne receiver
05/09/2001EP1098458A2 An apparatus and a method for locating a fault of a transmission line
05/09/2001EP1098219A1 Matrix optical switch and optical adm
05/09/2001EP1098212A1 Tunable dispersion compensator
05/09/2001EP1098211A1 Chromatic dispersion compensation device
05/09/2001EP1097538A1 High-throughput, low-latency next generation internet networks using optical tag switching
05/09/2001EP1097536A1 Optical cdma using a cascaded mask structure
05/09/2001EP1097534A2 Optical amplifier having a variable attenuator controlled according to the input power
05/09/2001EP1097533A1 Local control for burst mode optical transmitters
05/09/2001EP1097532A1 Device for detecting polarization mode dispersions
05/09/2001EP1097531A1 Method for compensating for polarisation mode dispersion and polarisation mode dispersion compensator
05/09/2001EP1097530A2 Laser satellite communication systems
05/09/2001CN1294796A WDM transmission, WDM transmission system and WDM transmission method
05/09/2001CN1294795A Method for establishing communication on standby link in optical transmission facilities
05/09/2001CN1294767A Improved performance gain flattened edfa
05/09/2001CN1294692A Optical-transmission system having split-gain complifier and signal-modifying device
05/09/2001CN1294690A Optical transmission line, negtive dispersion optical fiber used for optical transmission line, and optical transmission system comprising optical transmission line
05/09/2001CN1294455A Automatic monitor system for optical fibre network
05/08/2001US6230214 Portable electronic devices
05/08/2001US6229937 Circularly polarized fiber in optical circuits
05/08/2001US6229936 Optical amplifier, optical transmission equipment, optical transmission system, and method thereof
05/08/2001US6229935 Dispersion slope compensation in optical transmission systems
05/08/2001US6229932 Optical signal switching apparatus
05/08/2001US6229845 Bus driver with data dependent drive strength control logic
05/08/2001US6229835 Compact solid-state laser and transmitter using the same
05/08/2001US6229830 Burst-mode lase techniques
05/08/2001US6229643 Optical fiber amplifier surge protective apparatus
05/08/2001US6229642 Distributed fiber amplifier for solitons
05/08/2001US6229641 Optical amplifier, method of controlling the output light from the optical amplifier, optical transmission system and method of controlling an optical transmission path cross reference to related application
05/08/2001US6229634 Burst mode optical receiver and repeater
05/08/2001US6229633 Optical sampling by modulating a pulse train
05/08/2001US6229632 Broadband optical transmission system utilizing differential wavelength modulation
05/08/2001US6229631 Signal transmission system and method for supervising the same
05/08/2001US6229606 Method and apparatus for measuring PMD of a dispersion compensation grating
05/08/2001US6229599 Apparatus for measuring characteristics of an optical fiber
05/08/2001US6229398 Interface device between a broad-band ultrahigh frequency optoelectronic sensor and a load
05/08/2001CA2217620C Wavelength bypassed ring networks
05/08/2001CA2143996C Circuit board packaging structure
05/05/2001CA2324709A1 Tunable dispersion compensator
05/03/2001WO2001031826A1 Optical add-drop filter
05/03/2001WO2001031607A1 Contiguously mountable sensor unit
05/03/2001WO2001031389A1 Optoelectronic device with integrated passive optical elements and method
05/03/2001US20010000621 Bidirectional optical semiconductor apparatus
05/03/2001DE19929571A1 Optic transmitter arrangement
05/02/2001EP1096717A2 Data recovery for a wireless digital audio transmitting system
05/02/2001EP1096716A2 Data recovery for a wireless digital audio receiving system