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)
05/1994
05/31/1994	US5317441 Transceiver for full duplex signalling on a fiber optic cable
05/31/1994	US5317440 Single wavelength bidirectional optical fiber communication link
05/31/1994	US5317439 Automatic on-line monitoring and optimization of optical network switching nodes
05/31/1994	US5317384 Polarisation state insensitive optical discriminator
05/31/1994	US5317382 Optical phase detection method with orthogonal polarization and phase compensation arrangement
05/31/1994	US5317198 Optically controlled remote by-pass switch
05/26/1994	WO1994011834A1 Receiver polling
05/26/1994	WO1994011832A1 Method and device for acknowledgement of transmitted information
05/25/1994	EP0598651A1 Optical transmission system, particularly for a video communication cable network
05/25/1994	EP0598554A1 Negative dispersion optical fiber
05/25/1994	EP0598387A1 Optical transmission line and distortion reduction technique
05/24/1994	US5315677 Optical pulse generator
05/24/1994	US5315674 Repeater optical transmission system having full-optical loopback facilities
05/24/1994	US5315645 Communication apparatus utilizing digital optical signals
05/24/1994	US5315436 Fiber optics system
05/24/1994	US5315426 Optical transmitter
05/24/1994	US5315425 Optical transmission network with frequency locking means
05/24/1994	US5315424 Computer fiber optic interface
05/24/1994	US5315423 Wavelength multiplexed two dimensional image transmission through single mode optical fiber
05/24/1994	CA2021281C Unit for amplifying light signals in optical fiber transmission lines
05/24/1994	CA2019178C Direct modulation phase-shift-keying system and method
05/24/1994	CA2005391C Communication method and system with encryption of information
05/21/1994	CA2108638A1 Use of 4-hydroxy- or 4-aminobenzimidazole or their derivatives as couplers in tinctorial oxidant compositions, compositions and processes using same
05/19/1994	DE4238810A1 Unlimited polarisation adjustment for optical heterodyne reception - transmitting relatively weak additional signal with orthogonal polarisation to receiver capable of maximising useful signal
05/18/1994	EP0597721A2 TDM/TDMA telecommunications systems
05/18/1994	EP0597720A2 TDM/TDMA telecommunications systems
05/18/1994	EP0597633A1 Burst mode digital data receiver
05/18/1994	EP0597632A1 Packet mode digital data receiver
05/18/1994	EP0597442A1 Bidirectional transmission apparatus
05/18/1994	EP0597436A1 Spontaneous emission source having high spectral density at a desired wavelength
05/18/1994	CN2165579Y Wireless electronic voice traveling guide device
05/18/1994	CN1024612C Active fiber optical amplifier having wide band signal wavelength
05/18/1994	CA2103222A1 Optical transmission line and a method of forming thereof
05/17/1994	US5313536 Modular photonic waveguide distribution system
05/17/1994	US5313482 Method and circuit arrangement for correcting the light power output of a laser diode
05/17/1994	US5313384 High voltage generating circuits including a transformerless voltage multiplier
05/17/1994	US5313057 Non-selective photoreceiver for frequency-modulated optical signals and optical link using said receiver
05/14/1994	CA2106439A1 Burst mode digital data receiver
05/11/1994	WO1994004007A3 Telecommunications switch architecture
05/11/1994	DE4335591A1 Synchronisation device for optical signals in optical transmission system
05/10/1994	US5311592 Sagnac interferometer based secure communication system
05/10/1994	US5311531 Light generator, in particular for conveying a microwave signal
05/10/1994	US5311526 Article that comprises a semiconductor laser, and method of operating the article
05/10/1994	US5311369 Method for suppressing solar background in a receiver of laser light
05/10/1994	US5311353 Wide dynamic range optical receivers
05/10/1994	US5311351 Optical pulse source, and a soliton optical transmission system including the source
05/10/1994	US5311347 Optical communication system with automatic gain control
05/10/1994	US5311346 Fiber-optic transmission polarization-dependent distortion compensation
05/10/1994	US5311344 Bidirectional lightwave transmission system
05/10/1994	US5311008 Semiconductor apparatus
05/10/1994	US5311005 Optical transmitters
05/10/1994	CA2021380C Equalizing and amplifying circuit in an optical signal receiving apparatus
05/04/1994	EP0595536A1 Reduction of stimulated brillouin scattering in a fiber optic transmission system
05/04/1994	EP0595450A2 System for transmitting optical signals between an aircraft and ground station
05/04/1994	EP0595396A1 A compact-size optical amplifier
05/04/1994	EP0595395A1 A compact-size optical amplifier having separate functions
05/04/1994	EP0595207A1 Nonlinear optical signal processing device
05/04/1994	EP0595206A2 Device for the synchronisation of optical pulses
05/04/1994	EP0595140A1 Method for linearizing an unbalanced Mach Zehnder optical frequency discriminator
05/04/1994	EP0595087A1 Circuit for the reception of digital signals which have been transmitted over a dispersive optical waveguide
05/04/1994	EP0594741A1 Fault location in optical systems.
05/03/1994	US5309542 Fiber optic transmitter modification for improved extinction ratio
05/03/1994	US5309535 Apparatus and method utilizing a rotating waveplate for reducing polarization dependent hole-burning in an amplified optical transmission system
05/03/1994	US5309530 Technique utilizing stress-induced birefringence for reducing polarization dependent hole-burning in an amplified optical transmission system
05/03/1994	US5309475 Data interchange network
05/03/1994	US5309275 Semiconductor optical amplifying apparatus
05/03/1994	US5309269 Light transmitter
05/03/1994	US5309268 Optical communication system and optical communication method
05/03/1994	US5309267 Optical communication system using a Sagnac switch
05/03/1994	US5309266 Photonic switching matrix
05/03/1994	US5308995 Semiconductor strained SL APD apparatus
05/03/1994	US5308965 Display device for an industrial console module
05/03/1994	CA2040756C Long range bidirectional optical fiber communication link
05/03/1994	CA2013246C Atmospheric optical communication link
05/01/1994	CA2102020A1 Compact-size optical amplifier having separate functions
04/1994
04/30/1994	CA2091011A1 System for transmitting signals between optical transceivers
04/28/1994	WO1994009602A1 Optical switching matrix
04/28/1994	WO1994009601A1 Optical transmission network with switching matrix
04/28/1994	WO1994009575A1 Light path switching system
04/28/1994	WO1994009574A1 Postdistortion circuit for reducing distortion in an optical communications system
04/28/1994	DE4335998A1 Nonlinear optical signal processor - couples pump signal to nonlinear, e.g. Kerr effect medium via signal mixer to compensate for polarisation dependence
04/28/1994	CA2146758A1 Postdistortion circuit for reducing distortion in an optical communications system
04/28/1994	CA2124463A1 Optical transmission network with switching matrix
04/28/1994	CA2117301A1 Optical switching matrix
04/27/1994	EP0594344A1 Cascaded distortion compensation for analog optical systems
04/27/1994	EP0594178A1 Method and apparatus for monitoring noise figure of optical amplifier
04/27/1994	EP0594088A1 Apparatus and method for linearizing an external optical modulator
04/27/1994	EP0593947A1 Optical receiver with frequency band splitter
04/26/1994	US5307428 Optical domain digital pulse switching
04/26/1994	US5307410 Interferometric quantum cryptographic key distribution system
04/26/1994	US5307342 Communication switch
04/26/1994	US5307297 Data processor with wireless auxiliary input apparatus
04/26/1994	US5307197 Optical circuit for a polarization diversity receiver
04/26/1994	US5307196 Optical receiver
04/26/1994	US5307195 Method and means for the transmission of an electromagnetic signal in an optical fiber
04/26/1994	US5307194 Covert communication system using ultraviolet light
04/26/1994	US5307192 Process for bidirectional transmission of data
04/26/1994	US5307191 Communications method and network with frequency allocation
04/26/1994	CA2013156C Random-access digitally-tuned coherent optical receiver
04/20/1994	EP0593287A1 Electrooptical connector in an optical bus system

1 ... 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 ... 732