Patents
Sitemap › H04 - Electric communication technique › H04B - Transmission › 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
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)
08/2000
08/15/2000US6104517 Secure communications system
08/15/2000US6104516 Wavelength-changeable light source capable of changing wavelength of output light, optical communication network using the same and wavelength control method for controlling wavelength
08/15/2000US6104515 Method and apparatus for providing high-order polarization mode dispersion compensation using temporal imaging
08/15/2000US6104514 Dispersion based method of and apparatus for reducing unwanted mixing products on multiplexed optical communication lines
08/15/2000US6104513 High bandwidth communication system for large buildings
08/15/2000US6104512 Method for adjusting the power level of an infrared signal
08/15/2000US6104492 Optical signal monitor for multiwave optical signals
08/15/2000US6104478 System for uninterrupted light beam deflection
08/15/2000US6104477 Optical characteristic measurement system
08/15/2000CA2051227C Apparatus and method for linearizing the operation of an external optical modulator
08/10/2000WO2000046943A1 Arrangement for the contactless transmission of optical data
08/10/2000WO2000046942A1 Reduction of the distortion of optical impulses through polarisation mode dispersion in optical transmission systems
08/10/2000WO2000046941A1 Method of modulating a coherent light source with an electronic digital data stream
08/10/2000WO2000046890A1 Gain flattening in fiber amplifiers
08/10/2000WO2000031839B1 Optical fiber amplifier for controlling gain flatness
08/10/2000DE19955727A1 Minimizing influence of external noise on optical transmitter-receiver unit of optoelectronic sensor by placing transmissions at zero-crossing points of interfering signal
08/10/2000DE19938103A1 Schema zur Messung der chromatischen Dispersion für optische Systeme mit Fernzugriffspunkten Scheme for measuring the chromatic dispersion of optical systems with remote access points
08/10/2000DE19904941A1 Optical receiver for optical transmission system with non-linear equalization of transferred optical signal
08/10/2000DE19904461A1 Anordnung zur berührungslosen Übertragung von Daten Arrangement for contactless transmission of data
08/10/2000DE19904252A1 Methode zur Detektion von Verzerrungen sowie Empfänger für verzerrte optische Signale Method for the detection of distortion and receiver for distorted optical signals
08/10/2000DE19904248A1 Sendemodul für den Einsatz in einem DST Übertragungssystem sowie DST Übertragungssystem Transmitter module for use in a transmission system and DST DST transmission system
08/10/2000DE19904137A1 Reduktion der Verzerrung von optischen Impulsen durch die Polarisationsmodendispersion in optischen Übertragungssystemen Reduction of the distortion of optical pulses through the polarization mode dispersion in optical transmission systems
08/09/2000EP1026849A2 Optical transmission system as well as transmitter and receiver
08/09/2000EP1026841A2 Transmitter for use in a dispersion supported transmission system and dispersion supported transmission system
08/09/2000EP1026840A1 Polarisation modulation for optical transmission
08/09/2000EP1026839A2 Bus system with optical fibre
08/09/2000EP1026838A2 Infrared communication device
08/09/2000EP1026837A2 Distortion detection method and receiver for distorted optical signals
08/09/2000EP1026540A1 Thermally adjustable optical fiber grating device with packaging for enhanced performance
08/09/2000EP1025661A1 Transceiver for wavelength multiplexing processes
08/09/2000EP1025660A1 Optical emitter having a modulatable laser source with stable wavelength
08/09/2000EP1025659A1 Optical amplifier control
08/09/2000EP1025658A1 Infrared communications scheme
08/09/2000EP1025639A1 Transimpedance amplifier with automatic gain control
08/09/2000EP1025459A1 Multiple wavelength bidirectional lightwave amplifier
08/09/2000EP1025432A2 Interlocked high power fiber system using otdr
08/09/2000CN1262828A Wake-up circuit for electronic apparatus
08/09/2000CN1262827A Data reception circuit for infrared signals
08/09/2000CN1262826A Optical transmission system with receiver using full optical clock recovery
08/09/2000CN1262797A Communications system
08/09/2000CA2297522A1 Light transmitting/receiving module
08/08/2000US6101025 Optical repeater having redundancy
08/08/2000US6101024 Nonlinear fiber amplifiers used for a 1430-1530nm low-loss window in optical fibers
08/08/2000US6101016 Optical transmission systems using optical amplifiers and wavelength division multiplexing
08/08/2000US6101014 Wavelength controlling method enabling use of wider wavelength range and network system using the method
08/08/2000US6101011 Modulation format adjusting optical transponders
08/08/2000US6101010 Pass-monitoring apparatus of optical network system
08/08/2000US6100764 Remote control preamp circuit
08/08/2000CA2194022C Wireless communications systems with self threshold setting
08/08/2000CA2183691C Incrementally expandable ring architecture for providing telephony services
08/08/2000CA2179791C Integrated-circuit optical network unit
08/08/2000CA2088459C System for optically transmitting digital communications over an optical fiber with dispersion at the operating wavelength
08/06/2000CA2297992A1 An optical transmission system and transmitters and receivers
08/03/2000WO2000045532A1 Noise suppression in lightwave communication systems
08/03/2000WO2000045531A1 Method and apparatus for providing high-order polarization mode dispersion compensation using temporal imaging
08/03/2000WO2000045519A2 Broad band controlled angle analog diffuser and associated method s
08/03/2000WO2000045479A1 Balanced gain flattening filters
08/03/2000WO2000045213A1 Opto-electronic techniques for reducing phase noise in a carrier signal by carrier suppression
08/03/2000WO2000022765B1 Optical unidirectional ring network
08/03/2000DE19903523A1 Delay system for an optical transmission system includes Bragg grating with variable positioning
08/03/2000CA2362893A1 Method and apparatus for providing high-order polarization mode dispersion compensation using temporal imaging
08/03/2000CA2361006A1 Balanced gain flattening filters
08/03/2000CA2297939A1 A transmitting module for use in a dst transmission system and a dst transmission system
08/03/2000CA2297936A1 A method of detecting distortions and a receiver for distorted optical signals
08/02/2000EP1024564A2 Optical transmission system an optical transmitter
08/02/2000EP1024541A2 Light source for emitting light having a plurality of wavelengths and an optical transmitter having the same
08/02/2000EP1024391A1 Method of making optical chirped grating with an instrinsically chirped grating and external gradient
08/02/2000EP1024378A2 Optical channel selector
08/02/2000EP1024376A1 Optical grating device with variable coating
08/02/2000EP1023587A1 Side-tone otdr for in-service optical cable monitoring
08/02/2000EP0783808B1 Optical transmitter and transceiver module for wireless data transmission
08/02/2000CN1261746A Regenerator with saturable absorption body wave length multiway transmission signal
08/02/2000CN1261676A Low dispersion gradient optical fiber
08/02/2000CN1261674A Adding/ceding filter for multiple wave length optical wave system
08/01/2000US6097870 Article utilizing optical waveguides with anomalous dispersion at vis-nir wavelenghts
08/01/2000US6097862 Optical fiber grating devices with enhanced sensitivity cladding for reconfigurability
08/01/2000US6097736 Telecommunications network
08/01/2000US6097696 Optical layer quasi-centralized restoration
08/01/2000US6097535 Method for optical amplification and system for carrying out the method
08/01/2000US6097534 Optical amplifier system generating high optical output level
08/01/2000US6097533 Optical amplifier for CATV system with forward and reverse paths
08/01/2000US6097529 Apparatus for enhancing extinction ratio in optical NRZ-to-RZ converting system, and optical modulation system therefor
08/01/2000US6097525 Method for generating duobinary signal and optical transmitter using the same method
08/01/2000US6097524 Optical communication systems
08/01/2000US6097523 Optical systems with one or more stabilized laser signal sources
08/01/2000US6097522 Method and device for aligning an optical transmission and reception beam in satellite connections
08/01/2000US6097519 Fiber optic network using space and wavelength multiplexed data channel arrays
08/01/2000US6097518 N x M optical wavelength routing switch
08/01/2000US6097516 Optical add drop multiplex (OADM)
08/01/2000US6095661 Method and apparatus for an L.E.D. flashlight
07/2000
07/27/2000WO2000044118A1 Optical layer survivability and security system
07/27/2000WO2000044074A1 Opto-electronic oscillators having optical resonators
07/27/2000WO2000044072A1 Optical amplifier
07/27/2000WO2000027084A3 Processing optical signals
07/27/2000CA2353825A1 Optical amplifier
07/27/2000CA2324246A1 Optical layer survivability and security system
07/26/2000EP1022871A1 Duplex optical transmission system
07/26/2000EP1022870A2 Optical communication system using multiple-order Raman amplifiers
07/26/2000EP1022869A1 Emergency equipement for wavelength multiplexed light sources
07/26/2000EP1022606A2 System and method for optical monitoring
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