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)
10/1996
10/30/1996CN1134638A Network system as no arbitration control required, node device utilized in network system, and transmission control method for node device
10/29/1996US5570439 Optical waveguide device and optical transmission system
10/29/1996US5570438 Active-mode-locking optical-fibre pulsed laser generator having a variable instantaneous frequency
10/29/1996US5570297 Method and apparatus for synchronizing data transfer rate from a cathode ray tube video monitor to a portable information device
10/29/1996US5570263 Communications bus surge protector
10/29/1996US5570227 Method and apparatus for preventing occurrence of surge light in optical amplifier/transmitter apparatus
10/29/1996US5570226 Optical link amplifier and a wavelength multiplex laser oscillator
10/29/1996US5570221 Light amplification device
10/29/1996US5570220 Apparatus for transmitting lightwave
10/29/1996US5570219 Optical transmitter for subcarrier frequency multiplexed optical transmission system
10/29/1996US5570218 Optical switching matrix
10/29/1996US5570217 Positionally independent application of an OTDR technique based on correlation in a branched optical fibre network during operation
10/29/1996CA2175153A1 Method for tdma management, central station, terminal station and network system to perform this method
10/29/1996CA2075881C Transmission systems for the polarisation-independent transmission of signals
10/26/1996CA2174820A1 Circuit arrangement for dispersion compensation in optical transmission systems by means of an optical filter
10/23/1996EP0739113A2 Method for operating a communication network, access switch and transfer switch
10/23/1996EP0739103A2 Bidirectional optical amplifier using an active fibre
10/23/1996EP0491868B1 Error detection for fiber distributed interfaced optic link
10/23/1996CN1134066A Flash FM infrared modem
10/22/1996US5568583 Dispersion compensating optical fiber for wavelength multiplex transmission and method using same
10/22/1996US5568576 Optical parallel transmission device
10/22/1996US5568575 Optical array module and the control method of the same
10/22/1996US5568310 Optical transmission line relayed with multistage optical amplifiers
10/22/1996US5568304 Optical receiver for modulated light
10/22/1996US5568303 Unit for generating signal pulses, transmitter comprising such a unit, and multiplex transmission system comprising such a transmitter
10/22/1996US5568302 Method of transmitting data via an optical data link
10/19/1996CA2174402A1 Method of operating a telecommunication network as well as network-access exchange and transit exchange
10/19/1996CA2174286A1 Bidirectional optical amplifier using an active fibre
10/17/1996WO1996032787A1 Optical multichannel system
10/17/1996DE19522166C1 Optical switch, e.g. for explosion protection
10/17/1996DE19512966A1 Fault signal generating method for satellite free-space laser heterodyning receiver
10/16/1996EP0738055A2 Phase synchronization system
10/16/1996EP0738016A2 A differential pair of optical thyristors used as an optoelectronic transceiver
10/16/1996EP0558558B1 An optical network
10/16/1996CN1133652A Optical pulse sequence generator
10/15/1996US5566381 Multifrequency lightwave source using phase modulation for suppressing stimulated brillouin scattering in optical fibers
10/15/1996US5566265 Transmission and reception module for a bidirectional, optical message and signal transmission
10/15/1996US5566022 Infra-red communication system
10/15/1996US5566015 Optical demultiplexer with high speed superconducting switch
10/15/1996US5565867 Distributed analog to digital converter with optical links
10/15/1996US5565672 Optical transimpedance receiver with compensation network
10/15/1996CA2041074C Biocompatible viscoelastic gel slurries, their preparation and use
10/15/1996CA2011303C Method for identifying an optical transmission medium, apparatus for identifying the same and method for optical telecommunication
10/10/1996WO1996031964A1 Optical network and arrangement and method in such network
10/10/1996WO1996031961A1 Chromatic dispersion compensation device
10/10/1996DE19512193A1 Crossed ping-pong method for passive optical networks
10/09/1996EP0736984A1 Method of transmitting information and variations of a device for carrying out the said method
10/09/1996EP0736968A2 Offset cancelling amplifier circuit
10/09/1996EP0736967A2 A preamplifier
10/09/1996EP0736837A2 Point-type radio controller using infrared rays
10/09/1996CN1133111A Multiplexing/demultiplexing unit
10/09/1996CN1133095A Optical switching device
10/09/1996CN1132970A Wavelength-dibision multiplexing telecommunication system with dispersion-shifted optical fibres
10/08/1996US5563898 Semiconductor laser drive
10/08/1996US5563733 Optical fiber amplifier and optical fiber transmission system
10/08/1996US5563728 Infrared communication repeater architecture
10/08/1996CA2172892A1 Non-blocking optical cross-connect structure for telecommunications network
10/03/1996WO1996031029A1 Dark pulse generation and transmission
10/03/1996WO1996031026A1 In-line optical bi-directional link
10/03/1996WO1996031025A1 Optical node in an optical bus network
10/03/1996WO1996031024A1 Optical pre-amplifier
10/03/1996WO1996031023A1 Optical network
10/03/1996WO1996031022A1 Optical fibre and network
10/03/1996WO1996031021A1 Infrared backbone communication network having a radio frequency backup channel
10/03/1996CA2191592A1 Infrared backbone communication network having a radio frequency backup channel
10/02/1996EP0735710A2 Device for demultiplexing of an optical digital signal
10/02/1996EP0735707A2 Receiver & transceiver for a digital signal of an arbitrary pattern
10/02/1996EP0735706A2 Interface device
10/02/1996EP0735705A1 Optical telecommunication method providing a transmitting and receiving service channel
10/02/1996EP0735704A2 Method and apparatus for parallel optical data link
10/02/1996EP0735495A1 Display arrangement for electronic calculating apparatus
10/02/1996EP0734623A1 Passive optical network for video on demand
10/02/1996EP0734622A1 Surveillance of optical broad-band connection lines up to a passive interface
10/02/1996DE19518294C1 Optical amplifier for bidirectional wavelength multiplex optical transmission system
10/02/1996CN1132456A Radio telephone system and antenna device and base station for the same
10/01/1996US5561553 System for transmission over a repeaterless optical fiber line, with remote and local amplification
10/01/1996US5561542 Optical communication system and method for performing communication under clock control
10/01/1996CA2171173A1 Apparatus for demultiplexing an optical digital signal
10/01/1996CA2078482C Optical transmission system equalizer
10/01/1996CA2077481C Non linear effect correction optical communication line and light signal processing method
10/01/1996CA2048616C Optical transmission system
10/01/1996CA2047220C Apparatus for generating a comb of optical teeth of different wavelengths
10/01/1996CA2024314C Loop-back device for half-duplex optical transmission system
09/1996
09/26/1996WO1996024995A3 Method of communication channel monitoring using parity bits
09/26/1996DE19535801C1 Amplification regulation of optical fibre amplifier in wavelength multiplex system
09/25/1996EP0734129A2 Multi-wavelength optical batch amplification apparatus
09/25/1996EP0734127A1 Apparatus for digital transmissions over optical fibers
09/25/1996EP0734105A2 Optical fiber amplifier and dispersion compensating fiber module for optical fiber amplifier
09/25/1996EP0733962A2 Signal processing techniques based upon optical devices
09/25/1996EP0733288A1 Optoelectronic semiconductor device comprising laser and photodiode
09/25/1996CN2236196Y Portable infrared light-resource emission device
09/25/1996CN1131886A Wireless selective call receiver and method and system for writing desired data in the same
09/25/1996CN1131850A Manufacture method for single mode pigtail collimator of self-focusing lens type tunable optical filter
09/24/1996US5559920 Dispersion compensation in optical fiber communications
09/24/1996US5559910 Wavelength division multiplexed optical fiber transmission equiptment
09/24/1996US5559626 Energy resource sharing method and apparatus
09/24/1996US5559625 Distributive communications network
09/24/1996US5559624 Communication system based on remote interrogation of terminal equipment
09/24/1996US5559623 Method and arrangement for arranging an interception-proof optical link
09/24/1996US5559622 Circuit arrangement for switching in an alternate circuit between two fibers of a double light waveguide connection between two nodes
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