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)
08/1987
08/26/1987EP0233617A2 Optical send and receive module
08/26/1987EP0233310A2 Waveguide-containing communication and sensing systems
08/25/1987CA1226038A1 Apparatus for detecting tapping of light energy from an optical fiber
08/19/1987EP0232319A1 Optical communications systems
08/18/1987US4688268 Fiber optic receiver having a combined baseline clamp and automatic gain control detector
08/18/1987US4688267 Optical fibre receiver
08/18/1987US4688266 Car data transmission device for optical fibers
08/18/1987US4688260 High-reliability fiber optic repeater
08/18/1987US4687957 Fiber optic transceiver
08/13/1987WO1987004886A1 Optical space switch
08/13/1987WO1987004881A1 Fibre communication laser system
08/12/1987EP0232041A2 Optical transmission systems using polarization modulation
08/12/1987EP0231980A2 Method for transmitting measuring signals of at least two sensors via an opticaltransmission link
08/12/1987EP0231635A2 Fiber optic bidirectional data bus tap
08/11/1987US4686709 Optical Transmission circuit
08/11/1987US4686667 Broadband integrated subscriber loop system
08/11/1987US4686530 Cable transmission of signals
08/11/1987CA1225474A1 Efficient design technique for wavelength division multiplexing
08/05/1987EP0231016A2 Fiber soliton optical telecommunication system
08/05/1987EP0231015A1 Coherent photonic telecommunication device
08/05/1987EP0230938A2 Optical fiber signal test device
08/05/1987EP0230406A1 Device for the simultaneous transmission of a plurality of electric signals between two locations
08/04/1987US4684248 Hand-held communication unit
08/04/1987CA1225175A1 Bidirectional optical wavelength multiplexer- demultiplexer
08/04/1987CA1225121A1 Optical network system of bus architecture capable of rapidly detecting collision at each communication station
07/1987
07/30/1987WO1987004572A1 Monitoring and controlling radiation source stability
07/30/1987WO1987004571A1 Frequency locking radiation beams
07/30/1987WO1987004529A1 Reducing fluctuations in a radiation beam characteristic
07/30/1987EP0152423A4 Maintenance response signalling arrangement for a digital transmission system.
07/27/1987EP0165242A4 Fiber optic digital data transmitting system.
07/23/1987EP0151616A4 Control signalling arrangement for a digital transmission system.
07/23/1987DE3642250A1 Feed current controller for infrared transmission diodes
07/22/1987EP0076844B1 Data processing system having dual-channel system bus
07/21/1987US4682323 Interconnecting integrated circuits
07/21/1987US4682144 Light transmission system for trains
07/16/1987DE3700590A1 Method for transmitting light signals between two points, one of which rotates with respect to the other.
07/15/1987EP0228888A2 Optical communications system employing coherent detection and method
07/15/1987EP0228435A1 Optical communication system.
07/15/1987CN86107169A Coupling device for single mode optical fiber and communications system comprising same
07/14/1987US4680811 Vehicle to fixed station infrared communications link
07/14/1987US4680810 Means for controlling a semiconductor device and communication system comprising the means
07/14/1987US4680809 Light waveguide coupling device
07/14/1987CA1224285A1 Optical main distributor
07/08/1987EP0227773A1 Digital information transmission system and method
07/08/1987EP0227729A1 Coherent optical receivers
07/07/1987US4679252 Fiber optic receiver having a method and an apparatus for data clock extraction
07/07/1987US4679251 Optical receiver
07/07/1987US4679250 Optical repeaters
07/07/1987US4679115 Electrical disturbance protective device between a terminal and a telephone line
07/07/1987US4678906 Device for transmitting through an optical coupling data issuing from a steering wheel to an element mounted on a vehicle
07/07/1987US4677982 Infrared transcutaneous communicator and method of using same
07/07/1987CA1223938A1 Light detecting circuit
07/02/1987WO1987004029A1 Optical ring network
07/02/1987DE3545194A1 Opto-electronic transceiver
07/01/1987EP0227362A2 Wavelength multiplexed optical communications system and method
07/01/1987EP0226868A2 Integrated-optical multiplex-demultiplex module for optical message transmission
07/01/1987EP0226853A2 Optical receiver
07/01/1987EP0226801A2 Optical repeater and regulated current feeding system for the same
06/1987
06/30/1987US4677644 Method and apparatus for remote signalling by substituting a message for the data conveyed by a digital transmission link
06/30/1987US4677632 Coupled loop controller for a laser transmitter
06/30/1987US4677618 Method and apparatus for deskewing WDM data transmitted through a dispersive medium
06/30/1987US4677608 Method of transferring an additional information channel across a transmission medium
06/30/1987US4676585 Continuously variable fiber optic delay line
06/30/1987US4676583 Resonant cavity device
06/24/1987EP0226417A1 Operating a multiple-access optical network
06/23/1987US4675521 Trolley apparatus for transmitting light signals
06/23/1987US4674830 Fiber optic amplifier
06/23/1987CA1223370A1 Method and apparatus for detecting the collision of data packets
06/19/1987DE3544608A1 Device and method for mounting electrical transmission cables having a connector system for motor vehicles for the purpose of supplying energy and transmitting signals
06/19/1987DE3544137A1 Arrangement for direct feedback of transmit data as receive data in a communications device
06/19/1987DE3543677A1 Pre-amplifier with high dynamic range and sensitivity
06/18/1987WO1987003761A1 Operating a multiple-access optical network
06/17/1987CN86108247A 光接收器 Optical receiver
06/16/1987EP0225497A1 Optical heterodyne receiver
06/16/1987CA1223048A1 Broadband control amplifier
06/10/1987EP0224943A2 Method to measure selectively, according to wavelength, the diminution in radiation intensity in an optical transmission system
06/09/1987US4672214 Optical switch having light source and receiver positioned stationary relative to steering wheel
06/09/1987US4672198 Signal sampler microbending fiber test clip
06/09/1987US4671608 Optical coupling unit
06/03/1987EP0224291A1 Device for the transmission of messages without the use of cables from keyboard to a programmable sign-board
06/03/1987EP0224132A2 Optical composite transceiver
06/03/1987EP0224070A2 Optical amplifier
06/02/1987US4670637 Method and apparatus for transmitting a laser signal through fog
05/1987
05/27/1987EP0222810A1 Optical homodyne detection.
05/26/1987US4668044 Optoelectronic coupler for optical fibers providing adjustable light-energy extraction and a bidirectional data transmission system for practical application of the coupler
05/21/1987WO1987003154A1 Optical underwater communicator
05/21/1987DE3540412A1 Device for generating a high bit rate length product
05/20/1987EP0222384A2 Full duplex optical communication system
05/20/1987EP0222195A1 Method and arrangement for data transmission over a plurality of parallel lines, especially optical fibres
05/13/1987EP0221711A2 Optical fiber communications system comprising raman amplification means
05/13/1987EP0221710A2 Apparatus for controlling the power of a laser
05/13/1987EP0221695A2 Non-intrusive optical fibre network
05/13/1987EP0221560A2 Coupling device for single mode optical fiber and communications system comprising same
05/13/1987EP0221186A1 Robot controller
05/12/1987US4665421 Photodiode comprising a resonator structure for increasing absorption
05/12/1987US4665397 Apparatus and method for a universal electronic locking system
05/12/1987US4664518 Secure communication system
05/07/1987WO1987002787A1 Coherent optical communications systems
05/05/1987US4663767 Optical data bus having a statistical access method
05/05/1987US4663596 Optical transmission system