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)
05/1987
05/05/1987US4662715 Fiber optic network with reduced coupling losses
04/1987
04/28/1987US4662004 Laser communication system
04/28/1987US4662002 Optical repeaters
04/28/1987US4660973 Arrangement for locating faults in an optical information transmission system
04/23/1987WO1987002533A1 Asynchronous communication system
04/23/1987WO1987002531A1 Optical communications system and user terminal therefor
04/22/1987EP0219320A2 High-reliability fiber-optic repeater
04/22/1987CN86104559A Optical fiber distribution network
04/21/1987US4659215 Optical fiber test method and apparatus
04/21/1987CA1220835A1 Measurement apparatus
04/14/1987US4658394 Optical transmission
04/14/1987EP0162861A4 Fiber optic coupler/connector device and electronic/fiber optic interface device.
04/09/1987WO1987002205A1 Optical distribution system
04/08/1987EP0217468A1 Broadband optical distribution system
04/08/1987EP0216765A1 Optical receiver.
04/07/1987CA1220117A1 Multifunction steering wheel
04/02/1987DE3534054A1 Device for transmitting data telegrams occurring in serial form
04/01/1987EP0216214A2 Method for the automatic level adjustment in a local area network, in particular for a multiprocessor arrangement with a bus system of optical fibres, for the purpose of collision detection
04/01/1987EP0216213A2 Discoloration inhibitor for aromatic amines
04/01/1987EP0216167A2 Extension network for increasing the number of subscriber connections with a passive optical bus system with optical mixers
04/01/1987CN86105700A Process and apparatus for control and for supervision of an industrial installation by transmission of information and of commands by optical means
03/1987
03/31/1987US4654892 Electro-optical system using light modulation
03/31/1987US4654891 Optical communication of video information with distortion correction
03/31/1987US4654890 Multiplex communication system
03/31/1987US4654889 Multi-star fiber optic network with improved access time
03/31/1987US4654660 Optical telemetric transceiver
03/31/1987US4653850 Space division optoelectronic switch device
03/31/1987US4653849 Optical space-division switching assembly
03/31/1987CA1219940A1 Adressable photodetector retina
03/26/1987WO1987001889A1 Process for evaluating pulses of electromagnetic radiation
03/26/1987WO1987001874A1 Frequency referencing system and method
03/26/1987DE3631091A1 Method for evaluating pulses of electromagnetic radiation
03/25/1987EP0215711A2 Voice and data distribution system with fiber optic multinode star network
03/25/1987EP0215373A2 Method and arrangement for estimating the phase deviation, as well as a phase control method, in an optical synchronous receiver
03/24/1987US4653042 Device for storing information in an optical fiber transmission system
03/24/1987US4652861 Method and apparatus for protecting buried optical fiber cable
03/24/1987US4652764 Current source circuit with a photo coupler
03/24/1987US4652079 High speed pulse train generator
03/24/1987US4651571 Strain sensor
03/24/1987CA1219478A1 Wavelength tunable te to tm optical mode converter
03/19/1987DE3533281A1 Optical fibre transmission system
03/18/1987EP0214464A1 Casing for an optoelectronic circuit module
03/18/1987EP0214263A1 Optical networks
03/17/1987US4651343 Piezoelectric apparatus for positioning optical fibers
03/17/1987US4651111 Photoelectric current amplifier
03/17/1987US4650289 Optical circulator
03/17/1987US4650278 Fiber optic access nodes
03/12/1987WO1987001539A1 Optical fiber bandwidth limiting method
03/12/1987WO1987001538A1 Optical communication apparatus for a vehicle
03/12/1987DE3629535A1 Coherent optical frequency-division multiplex communication system
03/12/1987DE3530939A1 Optical data transmission device
03/11/1987EP0213784A2 Apparatus for amplitude modulating the output of a laser diode or L.E.D.
03/11/1987EP0213607A1 Device for telecommunication along optical fibres
03/10/1987US4649529 Data gathering system
03/05/1987DE3530791A1 Method for information transmission and network
03/03/1987US4648135 Photo diode-array dynamic range for optical signal systems
03/03/1987US4648134 Optical receivers
03/03/1987US4648132 Communication control apparatus
03/03/1987US4648131 Work helmet having transmitter-receiver for light signal
03/03/1987US4648083 All-optical towed and conformal arrays
03/03/1987US4647762 Optical receiver
03/03/1987CA1218547A1 Arrangement for transmitting signals between two relatively rotatable parts
02/1987
02/26/1987WO1987001246A1 Fibre-optic lasers and amplifiers
02/26/1987WO1987001110A1 Fabrication of optical fibres
02/24/1987US4646361 Optical star repeater
02/24/1987US4646086 Arrangement for data transmission between two mutually rotatable parts
02/24/1987US4645300 Fourier plane recursive optical filter
02/19/1987DE3528285A1 Arrangement for defined adjustable attenuation of an optical transmission path with an electrically controllable optical attenuator
02/19/1987DE3526001A1 High-voltage-resistant optocoupler
02/17/1987US4644587 Optical data communication system
02/17/1987US4644522 Information transmission using dispersive optical channels
02/17/1987US4644145 Optical receiver with electrically variable attenuator
02/12/1987WO1987000996A1 Device for the simultaneous transmission of a plurality of electric signals between two locations
02/12/1987WO1987000935A1 Optical communications systems
02/10/1987US4642804 Shared laser lightwave transmission systems
02/10/1987US4642453 Apparatus for increasing the dynamic range in an integrating optoelectric receiver
02/10/1987US4641914 Single mode operation with non-single mode optical fiber transmission cable
02/03/1987US4641378 Fiber optic communication module
02/03/1987US4641376 Multi-channel multi-cell optoelectronic switching networks for multi-service telecommunications systems
02/03/1987US4641375 Local area network
02/03/1987US4641373 T-connection fiber-optic repeater
02/03/1987US4641371 Multi-star fiber optic network
02/03/1987CA1217585A1 Elevator display system with optical power transmission
01/1987
01/31/1987CN85102333A 信号传输系统 A signal transmission system
01/27/1987US4639727 Data transmission system of optto-couplers
01/27/1987US4639075 Distortion free fiber optic system
01/27/1987CA1217244A1 Insulator circuit with an optoelectronic coupler
01/22/1987DE3524871A1 Method for optical transmission of binary signals and arrangement to carry out the method
01/22/1987DE3524430A1 Device for connecting the interfaces, in particular of the V24 type, of independent switching devices of data processing systems
01/21/1987EP0209329A2 Optical fiber distribution network
01/21/1987EP0208730A1 Optical fibre networks.
01/21/1987EP0208729A1 Optical networks.
01/20/1987US4638483 High speed intensity modulated light source
01/20/1987US4638167 Insulator circuit with an optoelectronic coupler
01/20/1987US4638152 Photoelectric converting circuit having a low parasitic capacitance
01/14/1987EP0208504A2 Fibre optic network component
01/14/1987EP0208444A2 Apparatus for obtaining derivative of characteristic curve, and method of controlling operation, of electronic devices
01/13/1987US4637072 Method of measuring the dispersion of a transmitting optical fibre
01/13/1987US4636636 Microwatt battery powered optical sensor
01/13/1987US4636241 Take-out mechanism for removing containers from a mould of a glassware forming machine