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)
07/1979
07/10/1979US4160903 Electro-optical radio system
07/10/1979CA1058293A1 Wired tv broadcasting system using an optical fibre, transducer and detector
07/03/1979US4160157 Signal transmission circuit with improved digital signal recovery
07/03/1979CA1057840A1 Electro-optical switch and modulator
06/1979
06/26/1979US4159418 Delay line encoder-decoder
06/19/1979US4158849 Indium phosphide, germanium
06/12/1979US4157860 Dual polarization electromagnetic switch and modulator
05/1979
05/29/1979US4156810 Transmitting device of light signal for remote control
05/29/1979US4156809 Data acquisition system
05/22/1979US4156135 Electronic heterodyning in an optical detector
05/16/1979EP0001952A2 Diode emitting and receiving light rays of the same predetermined wavelength
05/02/1979EP0001728A1 Light emitting and receiving diode, in particular for optical telecommunication
05/02/1979EP0001714A1 Control apparatus for a semi-conductor laser device
05/01/1979US4152713 Unidirectional optical device and regenerator
05/01/1979CA1053758A1 Optical communication system with bipolar input signal
04/1979
04/24/1979US4151407 Low-power, infrared information transmission system
04/24/1979US4150870 Adjustable distributor device for shared transmission of radiant energy
04/17/1979US4150284 Medical patient condition monitoring system
04/17/1979US4149770 Single-fiber duplex coupler
04/10/1979US4149072 System for flat ribbon optical fiber data communications link
04/10/1979US4149071 Light emitting element drive system
04/10/1979US4148558 Optical transmission line by-pass relay
04/10/1979US4148556 Multimode optic device
03/1979
03/27/1979US4146783 Multiplexed optical communication system
03/27/1979US4146307 Method of increasing the light produced by a laser beam
03/20/1979US4145607 System and method for shaping pulses of optical radiation
03/20/1979US4145457 Method for the production of optical directional couplers
03/20/1979US4145109 Electro-optic multiplexing with high interchannel isolation
03/20/1979US4144701 Apparatus for setting nip pressure of belts in false twister
03/13/1979US4143941 Low loss optical data terminal device for multimode fiber guide optical communication systems
03/06/1979US4143263 Receiver-transmitter device for transmitting data by means of focused modulated, light beams
03/06/1979US4142877 Method for making output/input coupler for multi-mode glass fibers
03/06/1979US4142773 Method for transmitting two-dimensional information and system for effecting same
02/1979
02/20/1979CA1048828A1 Communication system having low dispersion glass optical waveguide
02/13/1979US4139301 Distance measuring laser apparatus for delayed time measurements
02/13/1979US4139259 Light distributor for optical communication systems
01/1979
01/16/1979US4135202 Broadcasting systems with fibre optic transmission lines
01/09/1979US4134007 One-way transmission system
12/1978
12/26/1978US4131792 Fabry-Perot diplexer
12/26/1978US4131791 Search and locate system
12/19/1978US4130345 Optical coupling apparatus
12/19/1978US4130342 Passive optical channel crossover, switch and bend structure
12/05/1978US4128759 Fiber optic delay line filter
12/05/1978US4128302 Ray-path equalizer for signal transmission via multimode optical waveguides
12/05/1978US4128300 Optical logic elements
12/05/1978CA1043605A1 Directional coupling-device for multi-mode optical fibres
11/1978
11/28/1978US4127862 Integrated optical detectors
11/14/1978US4125768 Apparatus for launching or detecting waves of selected modes in an optical dielectric waveguide
11/14/1978CA1042247A1 Reduction of modal and chromatic material dispersion in a multimode optical fiber
11/07/1978US4124825 Signal level stabilizer
11/07/1978US4124272 Rotary fiber optic waveguide coupling
10/1978
10/17/1978US4121095 Optical receiver
10/10/1978US4119948 Remote meter reading system
10/03/1978US4118676 Method and apparatus for driving an optical waveguide with conherent radiation
10/03/1978US4118106 Fiber optic phase correction using holograms
09/1978
09/19/1978CA1038939A1 Stabilization circuit for radiation emitting diodes
09/19/1978CA1038668A1 Coupler for optical communication system
09/12/1978US4113345 Branching arrangement for communication transmission links having optical glass fibers
09/12/1978CA1038455A1 Fibre network for the optoelectronic transmission of data between subscriber stations
09/05/1978US4112293 Optical fiber data transmission system
08/1978
08/29/1978US4110608 Two-terminal photodetectors with inherent AC amplification properties
08/29/1978US4109998 Optical sliprings
08/29/1978US4109997 Optical sliprings
08/15/1978US4107519 Optical control system for high-voltage terminals
08/15/1978US4107518 Optical repeater
08/15/1978US4107517 Opto-electric device
08/08/1978US4105915 Deflection-type modulator of laser beam for communications
08/08/1978US4105290 Optical color communication system
08/01/1978US4104533 Wideband optical isolator
07/1978
07/18/1978US4101845 Method of and arrangement for producing coherent mode radiation
07/11/1978US4100423 Opto-electronic two-way coupling
07/04/1978US4099050 Codable optical transponder
06/1978
06/13/1978US4095097 Pulsed light signal receiver
06/06/1978US4093380 Optical systems utilizing three-wave heterodyne detectors
06/06/1978US4093354 Method and apparatus for splitting a beam of energy
05/1978
05/30/1978US4092059 Coupler for optical communication system
05/30/1978US4091734 Aircraft to weapon fuze communication link
05/23/1978US4091273 Electro-optical switching system
05/16/1978US4090067 Optical data communication system
05/16/1978US4090066 Polarization reference imaging system
05/16/1978US4089584 Multiple station multiplexed communications link employing a single optical fiber
05/16/1978US4089583 Method for making output/input coupler for multi-mode glass fibers
05/09/1978US4088884 Using selective reflecting power of metallic vapors
05/09/1978US4088387 Optical switch
05/02/1978US4087156 Optical fiber transmission mixer and method of making same
04/1978
04/18/1978US4085319 Spatial-multiplex, spatial-diversity optical communication scheme
03/1978
03/28/1978US4081670 Automatic bias control circuit for injection lasers
03/28/1978US4081258 Method for using on line optic fiber loss monitor
03/14/1978US4079323 Method and apparatus for coupling a moving-object sensor to direction-sensitive data utilization apparatus
03/14/1978US4079246 Optical communications forwards scatter compensator
03/07/1978US4077701 Method and arrangements for dispersion equalization of optical fiber transmission lines
03/07/1978US4077699 Optical devices
02/1978
02/28/1978US4076378 Tapered fiber optic array
02/28/1978US4076375 Directional optical waveguide coupler and power tap arrangement
02/21/1978US4075576 Sensitive high speed solid state preamp
02/21/1978US4075474 Method and apparatus for distortion reduction in optical communication systems
02/14/1978US4074142 Optical cross-point switch
02/14/1978US4074127 Optical PCM group transmission repeating system
02/07/1978US4072544 Electronic devices
02/07/1978US4072399 Passive optical coupler
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