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)
01/1987
01/13/1987US4636029 Apparatus for detecting tapping of light energy from an optical fiber
01/07/1987EP0207274A2 Driver circuit for a light-emitting diode
01/07/1987EP0207151A1 Vehicle to fixed station infrared communications link
01/06/1987US4635299 Discrete phase conjugate technique for precompensation of laser beams transmitted through turbulence
01/06/1987US4635029 Signal transmission apparatus for steering control board
01/06/1987US4634877 Optical transmitter receiver switch
01/06/1987CA1216168A1 Method in the signal processing of a received train of pulses, and a receiver for carrying out the process
12/1986
12/31/1986WO1986007658A1 Digital information transmission system and method
12/31/1986WO1986007657A1 Optical communication system
12/31/1986WO1986007642A1 Optical coupling assembly
12/30/1986US4633525 Light-emitting diode device for suppressing thermal time-constant effects
12/30/1986US4633524 Generation of pulses of electromagnetic radiation by use of the induced modulational instability
12/30/1986US4633523 Optical analog data link with simple self-test feature
12/30/1986US4633522 Apparatus for emitting and receiving light signals, more particularly infrared signals
12/30/1986US4633464 Control signalling arrangement for a digital transmission system
12/30/1986EP0206901A1 Arrangement for the control and surveillance of an industrial plant by optical transmission of information and commands
12/30/1986EP0206577A2 Optical fiber coupler
12/30/1986EP0206338A2 Light modulator
12/30/1986CA1216029A1 High power transmission over optical waveguide with suppression of stimulated brillouin scattering
12/23/1986US4631720 Service integrated transmission system
12/23/1986US4631718 Method and device for synchronization of system timing
12/23/1986US4631417 Addressable photodetector array
12/23/1986US4630889 Polarization locked optical fiber and method
12/23/1986CA1215564A1 Optical coupling device
12/18/1986WO1986007513A1 Coherent optical receivers
12/17/1986CN85106615A Optical data way
12/16/1986US4630278 Infrared light source incorporating a semiconductor laser associated with mode selection and power control means
12/16/1986US4630256 Bidirectional dual network
12/16/1986US4630254 Controlled star network
12/10/1986EP0204167A2 Electronic device having light transmission system
12/10/1986CN85104415A 光传输系统 The optical transmission system
12/09/1986US4628542 Modulated TEA laser receiver
12/09/1986US4628501 Optical communications systems
12/09/1986US4628309 System and device for remote surveillance of equipment on a digital transmission link without interrupting traffic
12/09/1986CA1215136A1 Optical receiver circuit
12/09/1986CA1215122A1 Infra-red data communication system for coupling a battery powered data entry device to a microcomputer
12/09/1986CA1215121A1 Optical star repeater
12/09/1986CA1215120A1 Optical heterodyne detection pulse receiving system and method
12/09/1986CA1215119A1 Fiber optic digital data transmitting system
12/03/1986EP0110888B1 A cordless telephone system
12/02/1986US4627106 Communications system
12/02/1986US4626793 Receiver amplifier for amplification of a photoelectric current
12/02/1986US4626678 Light detecting circuit
12/02/1986US4626676 Light detector having a photodiode with bias control
12/02/1986US4626675 Demultiplexing photodiode sensitive to plural wavelength bands
11/1986
11/26/1986EP0202618A2 Optoelectrical transimpedance receiver
11/26/1986EP0202602A2 Optical fiber data link system
11/26/1986EP0202601A2 Optical pulse receiving circuit
11/25/1986US4625314 Method for the recognition of the outage of one or more transmission channels in a redundantly designed optical transmission system
11/25/1986US4625305 Multiplexing of optical signals
11/25/1986US4625276 Data logging and transfer system using portable and resident units
11/25/1986US4625105 Electro-optic circuit with source control feedback
11/20/1986WO1986006849A1 Optical homodyne detection
11/20/1986EP0201825A2 Optical fiber communication with Frequency-Division-Multiplexing
11/18/1986US4623869 Elevator display system with optical power transmission
11/18/1986US4623786 Transimpedance amplifier with overload protection
11/18/1986CA1214197A1 Laser transmitters and methods of operating same
11/12/1986EP0201370A1 Fibre-optic transmission system for analogous information requiring very low power consumption
11/12/1986EP0200836A2 Channelized fiber optic receiver
11/12/1986CA1213990A Fiber optic modulator and data multiplexer
11/11/1986US4622681 Apparatus for transmitting digital data
11/11/1986US4622477 Light emitting diode driver circuit
11/06/1986WO1986006313A1 Robot controller
11/06/1986EP0118467A4 Optically coupled integrated circuit array.
11/05/1986EP0200194A2 Adscititious resonator
11/05/1986EP0200028A2 Coherent optical fiber communication with frequency-division-multiplexing
11/05/1986CN86102602A Optical fiber for local area networks with frequency-division-multiplexing
11/05/1986CN86100077A Balanced coherent receiver
11/04/1986US4621375 Remote control system for constructional machinery
11/04/1986US4621374 Circuit arrangement for processing, transmitting, and acoustically reproducing digitized audio-frequency signals
11/04/1986US4621200 Control device including a conductively isolated depluggable controller
10/1986
10/29/1986EP0199332A1 Wide-band receiver for optical signals
10/29/1986CN86101845A 光接收器 Optical receiver
10/28/1986US4620321 Optical fibre receiver
10/28/1986CA1213382A1 Optical fdm system
10/28/1986CA1213326A1 Switched bias circuit for high speed light emitting diode transmitter
10/22/1986EP0198239A2 Optical receiver
10/22/1986CN86101116A Coherent optical fiber communication with frequency-division-multiplexing
10/21/1986US4618258 Method for measuring loop coupling efficiency
10/21/1986US4618224 System for transmitting a laser beam from one location on an aircraft externally to a remote receiver
10/21/1986CA1213063A1 Optical guided wave signal processor for matrix- vector multiplication and filtering
10/21/1986CA1212853A1 Tapped optical fiber delay line
10/15/1986EP0197263A2 Method and apparatus for deskewing WDM data transmitted through a dispersive medium
10/14/1986US4617565 Method and device for data communication
10/14/1986US4616898 Optical communication systems using raman repeaters and components therefor
10/14/1986CA1212741A1 Collision avoidance circuit for packet switched communication system
10/08/1986EP0196933A1 Device for optical connection between electronic circuit boards in a box, and process for its manufacture
10/08/1986EP0196347A1 Infrared communication system
10/08/1986EP0108792B1 Fet amplifier with wide dynamic range
09/1986
09/30/1986US4614958 Light emitting and receiving device
09/30/1986US4614873 Signal isolator with optical fiber grounding means
09/25/1986WO1986005649A1 Optical networks
09/17/1986EP0194786A2 Balanced coherent optical receiver
09/16/1986US4612671 Laser transmitter
09/16/1986US4612670 Electro-optical connection between electronic modules
09/10/1986EP0193819A1 System for amplifying and shaping optical pulses
09/10/1986CN86101257A Wide-band synthetical switchboard for optical-fibre communication-network
09/09/1986US4611352 Optical transmission apparatus
09/09/1986US4610504 Fibre-optic switching means
09/09/1986CA1211164A1 Light emitting diode driver circuit