| 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) |
|---|
| 03/22/1989 | EP0307721A1 Optical heterodyne receiver with a six-port fibre coupler |
| 03/21/1989 | US4814628 Arrangement for the transmission of laser light with reference source for backscatter obstruction detection |
| 03/15/1989 | EP0307243A1 Optical distributor |
| 03/15/1989 | EP0307040A2 Beam pointing mechanisms |
| 03/14/1989 | US4813047 High frequency signal driver for a laser diode and method of forming same |
| 03/14/1989 | US4813045 Laser driver |
| 03/14/1989 | US4812776 System for amplifying and shaping optical pulses |
| 03/14/1989 | US4812743 Method and apparatus for detecting a narrowband signal |
| 03/14/1989 | CA1251261A1 Coherent lightwave transmitter with plurality of optical paths |
| 03/14/1989 | CA1251072A1 Fiber optic switch and discretely variable delay line |
| 03/08/1989 | EP0306124A2 Device for receiving a radiated electromagnetic signal arriving at a substantially horizontal surface |
| 03/08/1989 | EP0306059A2 Telemetry system with signal booster for digital data transmission through a transmission line |
| 03/08/1989 | EP0305995A2 An optical amplifying repeater |
| 03/08/1989 | EP0305554A2 Optical star bus with an active coupler |
| 03/08/1989 | EP0305534A1 Optical space transmission apparatus |
| 03/08/1989 | EP0305430A1 Optical device with a non reciprocal polarization rotator |
| 03/07/1989 | US4810873 Method and device for automatic compensation of the attenuation of a fiber optical measurement value transmission |
| 03/07/1989 | US4810052 Fiber optic bidirectional data bus tap |
| 03/07/1989 | CA1250897A1 Optical fibre transmission system with polarization modulation and heterodyne coherent detection |
| 03/07/1989 | CA1250896A1 Method and apparatus for acquiring information using a relative phase deviation of the optical signal of a local oscillator of a homodyne receiver |
| 03/01/1989 | EP0305188A2 Optical transmitter driver circuit |
| 03/01/1989 | EP0304997A2 Infra-red receiver |
| 03/01/1989 | EP0304462A1 Apparatus for optical wavelength division multiplexing. |
| 03/01/1989 | EP0304447A1 Coupler |
| 02/28/1989 | US4809363 Method for automatic level matching in a local network, in particular a multicomputer arrangement, comprising a bus system having light waveguides, for the purpose of collision recognition |
| 02/28/1989 | US4809361 Optical composite transceiver |
| 02/28/1989 | US4809359 System for extending the effective operational range of an infrared remote control system |
| 02/28/1989 | US4809358 Device for information transferring in a transparent substrate between components having I/O elements arranged for communication directly through the substrate by directive radiation propagating linearly without reflection at surfaces of the substrate |
| 02/28/1989 | US4809257 For interconnecting data handling units by infrared signals |
| 02/28/1989 | US4808810 Preamplifier for an optical receiver |
| 02/23/1989 | WO1989001724A1 Bidirectional roller deck control for a self guided vehicle |
| 02/22/1989 | EP0304075A2 Semiconductor laser modulation control system |
| 02/22/1989 | EP0304065A1 Telecommunication system with a star net of light-wave connections |
| 02/22/1989 | EP0304064A2 Connection system with several stages |
| 02/21/1989 | US4807227 Optical wavelength-division switching system with coherent optical detection system |
| 02/14/1989 | US4805237 Parametric diode amplifier |
| 02/14/1989 | US4805236 Method and arrangement for increasing the dynamic range at an input stage of an optical receiver |
| 02/14/1989 | US4805235 Optical transmitter comprising an optical frequency discriminator |
| 02/14/1989 | US4805234 Low cost fiber optic network node |
| 02/14/1989 | US4804248 Data rate limiter for optical transmission system |
| 02/08/1989 | EP0302275A2 Arrangement for detecting intensity-modulated light signals |
| 02/08/1989 | EP0302091A1 Polarisation controller. |
| 02/08/1989 | CN1031003A Protocols for very high-speed optical lans |
| 02/01/1989 | EP0301963A2 Amplifier device for signals of weak intensity, particularly for signals supplied by an optical plastic fibre |
| 02/01/1989 | EP0301841A2 Bus optical fiber including low mode volume light source optimally aligned |
| 02/01/1989 | EP0301388A1 Reflective transmitter for a fibre-optical bidirectional communication system |
| 02/01/1989 | EP0301380A2 Submarine telecommunication line comprising optical fibres |
| 01/31/1989 | US4801937 Line mounted apparatus for remote measurement of power system or environmental parameters beyond line-of-site distanc |
| 01/31/1989 | US4801190 Two-way optical fiber transmission network |
| 01/26/1989 | WO1989000792A1 Simultaneous transmission of led and laser signals over single mode fiber |
| 01/26/1989 | WO1989000790A1 Pcm signal coding |
| 01/25/1989 | EP0300771A1 PCM signal coding |
| 01/25/1989 | EP0300649A1 Bit synchronisation for optical networks |
| 01/25/1989 | EP0300640A2 Optical communication systems using Fabry-Perot cavities |
| 01/25/1989 | EP0300491A2 An optical apparatus for pulling an intermediate frequency in a predetermined frequency range |
| 01/24/1989 | US4800557 Optical demultiplex transmission equipment |
| 01/24/1989 | US4800555 Technique for repelling carriers in optical communications to minimize mutual interference |
| 01/24/1989 | US4800265 Optical fiber continuity testing with pulsating optical test signal |
| 01/24/1989 | US4799797 Coherence multiplexing of optical sensors |
| 01/24/1989 | CA1249342A1 Optical repeater and regulated current feeding system for the same |
| 01/24/1989 | CA1249341A1 Optical local area network employing microwave modulation techniques |
| 01/19/1989 | DE3722936A1 Optical heterodyne receiver for, in particular, phase-shift-keyed light |
| 01/18/1989 | EP0185749B1 Bidirectional optical data communications system |
| 01/17/1989 | US4798429 Optoelectric connection device |
| 01/17/1989 | CA1249030A1 Optical fiber communications system comprising raman amplification means |
| 01/17/1989 | CA1249029A1 Optical communication system |
| 01/17/1989 | CA1249028A1 Channelized fiber optic receiver |
| 01/12/1989 | WO1988009944A3 Fiber optic bimodal receiver |
| 01/11/1989 | EP0298598A2 Optical communication system with a stabilized group of frequencies |
| 01/11/1989 | EP0298484A1 Optical FSK homodyne receiver |
| 01/11/1989 | EP0298483A1 Optical heterodyne receiver with integrated optical polarization control |
| 01/11/1989 | EP0298098A1 Ultra high-speed light activated microwave switch/modulator using photoreactive effect. |
| 01/10/1989 | US4797879 Packet switched interconnection protocols for a star configured optical lan |
| 01/10/1989 | US4797640 Apparatus for amplitude modulating the output of a laser diode or L.E.D. |
| 01/10/1989 | US4797556 Optical continuity testing apparatus with pulsating transmitter |
| 01/10/1989 | CA1248588A1 Intranetwork and internetwork optical communications systems and method |
| 01/10/1989 | CA1248384A1 Continuously variable fiber optic delay line |
| 01/03/1989 | US4795919 Zero signal state detecting circuit |
| 12/29/1988 | DE3720153A1 Arrangement for the optoelectronic coupling of integrated circuits which are contained in at least two semiconductor wafers (slices) |
| 12/28/1988 | EP0296247A1 Optical multiplexer/demultiplexer and use of the same in an optical module |
| 12/28/1988 | EP0296201A1 Optical communications network |
| 12/28/1988 | CA1247704A Optical communication system employing coherent detection and method |
| 12/28/1988 | CA1247703A Wavelength multiplexed optical communications system and method |
| 12/27/1988 | US4794351 Optical mixer for upconverting or downconverting an optical signal |
| 12/21/1988 | EP0295857A1 Optical multiplexing |
| 12/21/1988 | EP0295299A1 Electronically tuneable fiber-optic receiver for narrow band microwave signal reception. |
| 12/20/1988 | US4793000 Light signal receiver |
| 12/20/1988 | US4792999 Wavelength agile optical receiver |
| 12/20/1988 | US4792998 Receiver for optical digital signals having different amplitudes |
| 12/20/1988 | US4792997 Receiver for optical digital signals with dark current compensation |
| 12/20/1988 | US4792995 Bidirectional roller deck control for a self guided vehicle |
| 12/20/1988 | US4792202 Bus optical fiber including low mode volume light source optimally aligned |
| 12/20/1988 | CA1247197A1 Optical homodyne detection |
| 12/15/1988 | WO1988010037A1 Optical multiplexing |
| 12/15/1988 | WO1988010034A1 Optical receiver circuit and method |
| 12/15/1988 | WO1988010018A1 Optical devices |
| 12/15/1988 | WO1988009944A2 Fiber optic bimodal receiver |
| 12/14/1988 | EP0295107A1 Optical receiver circuit and method |
| 12/14/1988 | EP0294465A1 Fiber-optic feed network using series/parallel connected light emitting opto-electronic components. |
| 12/13/1988 | US4791632 Compensated laser diode transmitter |