| 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) |
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| 04/26/1990 | DE3833841A1 Radio remote control device |
| 04/25/1990 | EP0365496A1 A laser arrangement in an optical communication system |
| 04/25/1990 | EP0365371A1 System for monitoring fibre-optical links |
| 04/25/1990 | EP0365028A2 A heterodyne receiver for coherent optical communication |
| 04/25/1990 | EP0364448A1 Monolithic integrated waveguide-photodiode-fet combination. |
| 04/25/1990 | EP0165242B1 Fiber optic digital data transmitting system |
| 04/25/1990 | CN1007774B Multi-star fiber optic network |
| 04/18/1990 | EP0364093A2 Methods of and systems for optical fiber sensing |
| 04/17/1990 | US4918751 Method for optical pulse transmission through optical fibers which increases the pulse power handling capacity of the fibers |
| 04/17/1990 | US4918747 Method and device for compensating, in a coherent optical communication system with heterodyne detection, at the receiving side, phase noise of a transmitting laser and of a local laser |
| 04/17/1990 | US4918700 Method and device for automatic frequency control of semiconductor lasers |
| 04/17/1990 | US4918396 Monitoring and/or control of optical amplifiers |
| 04/17/1990 | US4917456 Optical crossover network |
| 04/17/1990 | US4917450 Dynamic optical interconnection device for integrated circuits |
| 04/17/1990 | US4917213 Power transmission |
| 04/11/1990 | EP0362789A2 Integrated type optical node and optical information system using the same |
| 04/10/1990 | US4916705 Random-access digitally-tuned coherent optical receiver |
| 04/10/1990 | US4916689 Communications apparatus for encoding and decoding multiplexed optical signal |
| 04/10/1990 | US4916460 Distributed antenna system |
| 04/09/1990 | EP0327596A4 Opto-electrical power transmission and control system. |
| 04/05/1990 | WO1990003591A1 Dual mode light emitting diode/detector diode for optical fiber transmission lines |
| 04/04/1990 | EP0361751A2 Passive optical device |
| 04/04/1990 | EP0361368A2 Light signal transmission system |
| 04/04/1990 | EP0361342A2 Optical receiver with a widened dynamic range |
| 04/04/1990 | EP0361151A2 Device for generating an FSK-modulated optical signal with two different polarisation states for an optical transmission system with an optical heterodyne FSK receiver having two filters |
| 04/04/1990 | EP0361150A2 Method for the synchronised keying of the polarisation state of an optical signal in an optical transmission system with heterodyne reception, and device for carrying out the method |
| 04/04/1990 | EP0360877A1 Circuitry to determine the optical power of a signal |
| 04/04/1990 | CN1007487B Optical heterodyne receiver |
| 04/03/1990 | US4913508 Passive optical device |
| 03/29/1990 | DE3832485A1 Data processing system with a central computer and a number of remote data terminals |
| 03/28/1990 | EP0360489A2 Protection against loss or corruption of data upon switchover of a replicated system |
| 03/28/1990 | EP0360177A2 Optical transmitting and/or receiving element |
| 03/28/1990 | EP0359836A1 Circuitry with an amplifier connected to an optoelectric transducer |
| 03/27/1990 | US4912706 Frame synchronization in a network of time multiplexed optical space switches |
| 03/27/1990 | US4912527 Optical apparatus for pulling an intermediate frequency in a predetermined frequency range |
| 03/27/1990 | US4912526 Optical frequency synthesizer/sweeper |
| 03/27/1990 | US4912524 Digital signal transmission system having conversion means for reducing the light emission time of a light emitting diode |
| 03/27/1990 | US4912523 Optical fiber communication system comprising mode-stripping means |
| 03/27/1990 | US4912522 Light driven remote system and power supply therefor |
| 03/27/1990 | US4912521 Electro-optical transducer assembly |
| 03/27/1990 | US4911519 Packaging techniques for optical transmitters/receivers |
| 03/27/1990 | US4911515 Optical fiber communications system with optical fiber monitoring |
| 03/27/1990 | CA1267013A1 Optical fiber coupler |
| 03/22/1990 | WO1990003072A1 Optical data link system, and methods of constructing and utilizing same |
| 03/22/1990 | WO1990003054A1 Wavelength stabilized source of light |
| 03/22/1990 | DE3832093A1 Device for demultiplexing optical signals and a polarisation-diversity receiver for optical superheterodyne reception using such a device |
| 03/21/1990 | EP0359205A2 Optical communication system for simultaneous transmission of a baseband digital signal and multiple microwave subcarriers |
| 03/21/1990 | EP0358637A1 Accessing Method And Apparatus |
| 03/20/1990 | US4910737 Bistable optical device comprising a lightly doped optical fibre |
| 03/20/1990 | US4910727 Optical transceiver having waveguide couplers for filtering and duplexing transmit and receive wavelengths |
| 03/20/1990 | US4910726 Optical fibre communication networks with local optical power feeding |
| 03/20/1990 | US4909628 Optical heterodyne detector |
| 03/20/1990 | US4909586 Two-way connector |
| 03/20/1990 | US4909585 Optical communications apparatus |
| 03/20/1990 | US4909584 Optical multi/demultiplexer and optical module using the same |
| 03/20/1990 | CA1266786A1 Coherent distributed sensor and method using short coherence length sources |
| 03/14/1990 | EP0357799A1 Method and apparatus for modulating a semiconductor laser |
| 03/14/1990 | EP0357701A1 Electro-optical data handling system with noise immunity |
| 03/14/1990 | EP0126065B1 Continuously variable fiber optic delay line |
| 03/14/1990 | CN1040470A Code creating and seperating devices for light-fiber communication system |
| 03/14/1990 | CN1040469A Coding method of light-fiber communication system |
| 03/13/1990 | US4908833 Distributed feedback laser for frequency modulated communication systems |
| 03/13/1990 | US4907763 Optical fiber guided tube-launched projectile system |
| 03/08/1990 | WO1990002350A1 Optical fiber connector structure |
| 03/07/1990 | EP0356951A2 Fibre-optical band filter |
| 03/07/1990 | EP0356487A1 Data bit detector for fiber optic system |
| 03/07/1990 | CN2054236U Optic fibre data channel |
| 03/07/1990 | CN1040295A Technique for reducing distortion characteristics in fiber-optic links |
| 02/28/1990 | EP0356302A1 Method and device for the optical filtration and photodetection of intensity-modulated signals |
| 02/28/1990 | EP0356189A2 Semiconductor optical amplifier with shortened gain recovery time |
| 02/28/1990 | EP0356090A2 Fibre optic data coupler |
| 02/28/1990 | EP0356085A2 Automatic gain control fiber optic-to-electrical transceiver |
| 02/28/1990 | EP0355952A2 Optical communication system |
| 02/28/1990 | EP0355877A1 Optical network |
| 02/28/1990 | CN1007033B Wide-band sythetical switchbord for optical-fibre communication-network |
| 02/28/1990 | CN1007031B Optical receiver |
| 02/27/1990 | US4905309 Optical remote control system |
| 02/27/1990 | US4905253 Distributed Bragg reflector laser for frequency modulated communication systems |
| 02/27/1990 | US4905218 Optical multiplex communication system |
| 02/27/1990 | US4904993 Remote control apparatus with selectable RF and optical signal transmission |
| 02/27/1990 | US4904860 Optical signal detection circuit with constant current sources |
| 02/27/1990 | US4904086 Light alignment detection device |
| 02/27/1990 | US4904050 Methods of and systems for optical fiber sensing |
| 02/22/1990 | DE3827099A1 Method for building up a switching network |
| 02/20/1990 | US4903342 Optical heterodyne homodyne detection apparatus |
| 02/20/1990 | US4903341 Semiconductor optical heterodyne detector |
| 02/20/1990 | US4903340 Optical data connector having magnetic interconnect sensor |
| 02/20/1990 | US4903339 Locally nulled sine-wave total power alarm for intrusion detecting optical communications systems |
| 02/20/1990 | US4903338 Optical interface |
| 02/20/1990 | US4903337 Fiber optic transceiver |
| 02/20/1990 | US4903334 System for preventing crosstalk in a multi-input electronic device |
| 02/20/1990 | US4903273 Laser diode control method and circuit |
| 02/20/1990 | CA1266091A1 Fiber optic telecommunications device |
| 02/14/1990 | EP0354776A2 Improvements in and relating to semiconductor lasers |
| 02/14/1990 | EP0354567A2 Sending and receiving part for a bidirectional coherent optical communication system |
| 02/14/1990 | EP0354311A2 Direct generation of ultrafast electrical pulses |
| 02/14/1990 | EP0354308A2 Integrated terahertz electromagnetic wave system |
| 02/13/1990 | US4901306 Wavelength-division multiplexed optical fiber network |
| 02/13/1990 | US4901305 Distributed crossbar switch |
| 02/13/1990 | US4900917 Polarization insensitive optical communication device utilizing optical preamplification |