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)
06/1988
06/15/1988	CN87106047A Abaxial optical communication system
06/14/1988	US4751745 High frequency signal filter apparatus
06/14/1988	US4751582 Office machine having clamshell structure
06/14/1988	US4751477 Semiconductor laser light modulation and demodulation system
06/14/1988	US4750802 Optical fiber dispersion compensator
06/14/1988	US4750795 Optical fiber coupler
06/08/1988	EP0269624A1 Fibre-optic lasers and amplifiers
06/07/1988	US4750217 Optical receivers
06/07/1988	US4750216 Video coupler device
06/07/1988	US4749248 Device for tapping radiation from, or injecting radiation into, single made optical fiber, and communication system comprising same
06/02/1988	WO1988004034A2 Avalanche photodiode quenching circuit
06/01/1988	EP0269418A2 Optical signal recovery
06/01/1988	EP0269001A2 Method of enlarging the transmission capacity of an optical subscriber network transmission system
06/01/1988	EP0268972A2 Information transmission method and apparatus, mainly for mobile information-carrying systems
06/01/1988	EP0268741A2 Polarization insensitive coherent lightwave detector
05/1988
05/25/1988	EP0268404A2 Optical interconnection of devices on chips
05/25/1988	EP0268355A2 Optical communications system
05/25/1988	EP0268041A2 Servo unit for actuating control surfaces or the like of a flight control system
05/24/1988	US4747094 Signal coupling system for optical repeater system
05/24/1988	CA1237166A1 High speed intensity modulated light source
05/19/1988	WO1988003730A1 Fibre optic communication system for use in hazardous environments
05/18/1988	EP0267484A2 Method and device for automatically compensating the damping of a measurement value transmission by means of optical fibres
05/18/1988	EP0267398A2 Control signal transmission device, especially for aircraft
05/18/1988	EP0267397A2 Control signal transmission arrangement, especially for aircraft
05/18/1988	EP0267216A1 Improvements in or relating to integrated circuits.
05/17/1988	US4745592 Coherent photonic telecommunications system
05/17/1988	US4744617 Mounting optical busbars on backplanes
05/17/1988	CA1236897A1 Optical fiber signal test clip
05/17/1988	CA1236884A1 Optical communication apparatus for a vehicle
05/17/1988	CA1236883A1 Lightwave transmission system using homodyne detection
05/11/1988	EP0266870A2 Local area network with a common carrier signal
05/10/1988	US4744105 Receiver using optical feedback
05/10/1988	US4744087 Device for driving a laser
05/10/1988	US4743856 Digital optical receiver circuit
05/10/1988	CA1236551A1 Telesignalling device and method whereby data transmitted by a digital link are replaced by messages
05/05/1988	DE3637097A1 Optical broadband communications system, in particular in the local loop
05/04/1988	EP0265936A1 Synchronization device for optical remote control with an expansible code
05/04/1988	EP0265935A1 Infrared transmitter for coded messages using a fixed code and a great number of combination facilities
05/04/1988	EP0265918A2 Optical broad band communication transmission system, especially in the subscriber access area
05/03/1988	US4742577 Device and method for signal transmission and optical communications
05/03/1988	US4742576 Optical communication system employing coherent detection and method
05/03/1988	US4742575 Light signal transmission/reception system
05/03/1988	US4742572 Optical fiber data link system
05/03/1988	US4741587 Optical communications system and method for the generation of a sequence of optical pulses by means of induced modulational instability
05/03/1988	US4741586 Dynamic coupler using two-mode optical waveguides
05/03/1988	US4741585 Optical fiber tap utilizing reflector
04/1988
04/27/1988	EP0265278A2 Optical FSK demodulator
04/26/1988	US4740050 Optical fail safe device
04/26/1988	CA1235750A1 Communications system
04/21/1988	WO1988002957A1 Optical receiver
04/20/1988	EP0264230A1 Optical receiver
04/20/1988	EP0264119A2 An optical wavelength-division switching system
04/20/1988	EP0263845A1 Improvements relating to communication systems.
04/19/1988	US4739174 Converting circuit having first and second optically coupled phototransistors and first and second operational amplifiers
04/13/1988	EP0263613A2 An optical mixer for upconverting or downconverting an optical signal
04/12/1988	US4737958 High repetition rate laser source having high power
04/07/1988	DE3633984A1 Optical receiver with extended dynamic range
04/07/1988	DE3633755A1 Optical switch
04/07/1988	DE3633025A1 Arrangement for compensating for the different transit times of frequencies on a line
04/07/1988	DE3632047A1 Optical communications system for narrow-band and broadband information signals, particularly in the local loop
04/06/1988	EP0262911A2 System for transmission loss comparison
04/06/1988	EP0262728A1 Preamplifier for an optical receiver
04/06/1988	EP0262409A2 An optical bus type communication system
04/05/1988	US4736462 Photonic switching
04/05/1988	US4736391 Threshold control with data receiver
04/05/1988	US4736359 Single fiber optical communication system
04/05/1988	US4736164 Optical amplification
04/05/1988	US4736120 Timing extraction circuit
04/05/1988	CA1234932A1 Method and apparatus for deskewing wdm data transmitted through a dispersive medium
03/1988
03/31/1988	DE3727829A1 Device for interference-signal suppression for optical receivers
03/30/1988	EP0261876A2 Narrowband tunable optical receiver
03/30/1988	EP0261834A2 Apparatus and method for self-referencing and multiplexing intensity modulating fiber optic sensors
03/30/1988	EP0261724A1 Device for optical heterodyne detection of an optical signal beam and an optical transmission system provided with such a device
03/30/1988	EP0261479A2 Optical heterodyne receiver
03/30/1988	EP0261423A2 Driver circuit for driving a light emitting element by superimposing an analog sub-information signal over a digital main signal
03/30/1988	EP0261201A1 Optical communication system
03/30/1988	CN87106190A 光外差接收器 Optical heterodyne receiver
03/29/1988	US4733932 Useful in a glass fiber communications system
03/24/1988	WO1988002133A1 Bistable optical device
03/24/1988	DE3631597A1 Device for the direct insertion of optical-fibre cables between two communications interfaces
03/23/1988	EP0260745A1 Device for optical heterodyne detection of an optical signal beam and optical transmission system provided with such a device
03/23/1988	EP0260594A2 Device for controlling light polarization, in particular in a heterodyne or homodyne optical receiver
03/22/1988	US4733109 Second harmonic generation with Schiff bases
03/22/1988	US4732447 Homodyne optical coherent receiver for digital optical signals
03/16/1988	EP0259367A1 Fibre communication laser system
03/15/1988	US4731880 Communication network
03/15/1988	US4731784 Communication system comprising overlayed multiple-access transmission networks
03/15/1988	US4731529 Light measuring circuit having circuitry for bypassing a low frequency component in the output of a photoelectric conversion element
03/15/1988	US4730888 Optimized guided wave communication system
03/10/1988	WO1988001813A1 Impedance matched optoelectronic components using lossless elements
03/10/1988	WO1988001752A1 Off axis optical communication system
03/10/1988	DE3630382A1 Separable or permanent optical connection between two optoelectronic semiconductor components
03/09/1988	CN87105899A Driver circuit for driving light emitting element by superimposing an analog sub-information signal over digital main signal
03/08/1988	US4730330 Integrated structure for bi-directional optical fiber transmission
03/08/1988	US4730301 Wavelength multiplexed optical communications system and method
03/08/1988	US4730128 Bias circuit for an avalanche photodiode
03/02/1988	EP0257999A2 Strained distributed optical fiber communication system
03/02/1988	EP0257889A2 Data rate limiter for optical transmission system
03/02/1988	EP0257085A1 A device for providing an information transferring communication between electric components or circuits.
03/01/1988	CA1233574A1 Wavelength division multiplexing optical communications systems

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