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)
06/1995
06/14/1995EP0657765A1 Optical mixer and its use
06/14/1995EP0657754A1 Optical dispersion compensator
06/14/1995EP0657075A1 Flexible network concept
06/13/1995US5425033 Detection of errors in a digital transmission system
06/13/1995US5424864 Microcellular mobile communication system
06/13/1995US5424863 Dual-polarization fiber optic communications link
06/13/1995US5424862 High capacity communications satellite
06/13/1995US5424861 Optical signal transmission with polarization-insensitive coherent detection and frequency stabilization at the receiving end
06/13/1995US5424860 Bidirectional transmission apparatus
06/13/1995US5424859 Transceiver for wireless in-building communication sytem
06/13/1995US5424858 Apparatus for locating file folders
06/13/1995CA2038329C Erbium doped fibre optical amplifier
06/08/1995WO1995015625A1 Bidirectional optical amplifier
06/08/1995WO1995015624A1 Infrared local area network
06/07/1995EP0656700A1 Optical system for transmitting a multilevel signal
06/07/1995EP0656699A1 Free space optical transmission apparatus
06/07/1995CN1028807C Device for signalling position of mobile membre
06/06/1995US5422972 Techniques for illuminating internal surfaces of a high speed electro-optical signal translator
06/06/1995US5422968 Optical demultiplexing system with optical amplifiers
06/06/1995US5422966 Microwave electro-optic mixer
06/06/1995US5422772 Secure fiber optic networks
06/06/1995US5422754 Optical transmission line relayed with multistage optical amplifiers
06/06/1995US5422752 Optical transmission system
06/06/1995US5422493 Asynchronous bidirectional node switch
06/06/1995US5421095 Procedure for transmission of information in aligning equipment for motor vehicles, and aligning equipment for carrying out the procedure
06/03/1995CA2118449A1 Method and system for indicating an optical transmit amplifier fault
06/01/1995WO1995015027A1 Direct entry remote control with channel scan
05/1995
05/31/1995EP0655874A2 Fast tunable channel dropping filter
05/31/1995EP0655632A1 Optical filter having integrated transceivers
05/30/1995US5420868 Suppression of brillouin scattering in lightwave transmission system
05/30/1995US5420828 Viewing screen assembly
05/30/1995US5420711 Fiber optic link amplitude stabilization circuit
05/30/1995US5419336 Infra-red transmitter
05/24/1995EP0654905A1 Fet-based optical receiver
05/24/1995EP0654896A1 Transimpedance amplifier circuit with feedback and load resistor variable circuits
05/24/1995EP0654689A1 Optical module for two-way transmission
05/24/1995EP0654193A1 Process and circuitry for electric compensation of signal distortion caused by laser chirp and fibre dispersion.
05/23/1995US5418905 Correlated photon pair optical communications system
05/23/1995US5418870 Input/output device for a two-way optical communications system
05/23/1995US5418637 Cascaded distortion compensation for analog optical systems
05/23/1995CA2040626C Light emitting element drive circuit
05/18/1995WO1995013687A1 A cross-connect for an optical network
05/18/1995WO1995013672A1 Portable wireless communication device
05/18/1995CA2172249A1 Portable wireless communication device
05/17/1995EP0653854A1 Method and apparatus for reduction of optical communication system impairments
05/17/1995EP0653853A1 Free space communications system with wide field of view heterodyne detection
05/17/1995EP0653852A1 Free space optical communication system
05/17/1995EP0653654A1 Optical detectors and sources with merged holographic optical elements suitable for optoelectronic interconnects
05/17/1995EP0653142A1 Telecommunications switch architecture.
05/17/1995EP0653136A1 Method and apparatus for providing power to a coaxial cable network
05/17/1995EP0653129A1 Free space optical communication system.
05/17/1995EP0653076A1 Optical radiation devices.
05/17/1995EP0634025A4 Improvements to optical phase shifting.
05/17/1995CN1102736A Optical fibre amplifier with dual rasters
05/17/1995CA2130775A1 Optical filter having integrated transceivers
05/16/1995US5416871 Molded optical connector module
05/16/1995US5416864 Optical fiber amplified tapping network and method using same
05/16/1995US5416862 Lightwave transmission system using selected optical modes
05/16/1995US5416629 Intensity modulated digital optical communications using a frequency modulated signal laser
05/16/1995US5416628 Multilevel coherent optical system
05/16/1995US5416627 Method and apparatus for two way infrared communication
05/16/1995US5416626 Optically amplified transmission systems
05/16/1995US5416623 Optical communications system
05/16/1995EP0664060A4 Apparatus for adapting an electrical communications port to an optical communications port.
05/16/1995CA2132990A1 Optical dispersion compensator
05/11/1995WO1995012928A1 Method for determining the optical input power of an apd receiver
05/11/1995WO1995012828A1 Process for altering the intensity and phase ratios in multi-mode interference couplers
05/11/1995CA2153153A1 Process for altering the intensity and phase ratios in multi-mode interference couplers
05/10/1995EP0652653A1 Optical fibre telecommunication method, link applying this method and pumping system for four wave mixing, particularly for this link
05/10/1995EP0652652A1 Method and apparatus for receiving monitoring signal
05/10/1995EP0652651A1 Positionally independent application of an OTDR technique based on correlation in a branched optical fibre network during operation
05/10/1995EP0652613A2 Optical-fiber amplifier
05/10/1995EP0652450A1 Low-loss dual-mode optical fiber compensators
05/10/1995CN2196841Y Change-over type ceiling fan telecontrol device
05/10/1995CA2135259A1 Optical fibre telecommunication process, link using said process and pumping system for a four wave mixture, particularly for said link
05/09/1995US5414785 Optical data bus having collision detection capability
05/09/1995US5414761 Remote control system
05/09/1995US5414550 Optical heterodyne detector and receiver
05/09/1995US5414549 Semiconductor optical amplifying apparatus
05/09/1995US5414540 Frequency-selective optical switch employing a frequency dispersive element, polarization dispersive element and polarization modulating elements
05/09/1995US5414426 Favorite key macro command and chained macro command in a remote control
05/04/1995WO1995012260A1 Circuit and construction arrangement for bidirectional contactless, wireless transmission of information across rotating/stationary axes between the various units of industrial actuating and process control equipment
05/04/1995WO1995012137A1 Silicon opto-electronic integrated circuit for fiber optic gyros or communication
05/04/1995DE4337089A1 Transparent optical ring network with optional switching-through or injection and extraction of signals in the ring nodes
05/04/1995DE4330436A1 Mobile telephone
05/03/1995EP0651529A1 Optical transparent ring network with dropping of one wavelengthsignal in plural ringnodes
05/03/1995EP0651528A1 Optical transparent ring network with redundant paths
05/03/1995EP0651476A1 A method of mitigating gain peaking using a chain of fiber amplifiers
05/03/1995EP0651277A1 Optical modulators as monolithically integrated optical isolators
05/03/1995EP0651269A1 Optoelectronic multibit beamsteering switching apparatus
05/03/1995EP0650617A1 Modem for communicating with enclosed electronic equipment.
05/03/1995CA2128597A1 Method of mitigating gain peaking using a chain of fiber amplifiers
05/02/1995US5412652 Sonet ring subnetwork management method
05/02/1995US5412498 Multi-RC time constant receiver
05/02/1995US5412496 Transmitter/receiver for frequency-modulated optical signals and optical link corresponding thereto
05/02/1995US5412202 Optical signal input-type amplifier circuit
04/1995
04/27/1995WO1995011558A1 Modulation and coding for transmission using fluorescent tubes
04/27/1995DE4336524A1 Optical interface
04/26/1995EP0650272A1 In-line two-stage erbium doped fiber amplifier system
04/26/1995EP0650234A1 Fiber amplifier having efficient pump power utilization