| 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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| 07/17/1990 | US4942568 Optical transmission device |
| 07/17/1990 | US4942534 Data processing apparatus |
| 07/17/1990 | US4941720 Optical cable network with an excess number of leads in reserve |
| 07/12/1990 | DE3900095A1 Method for transmitting optical signals according to the heterodyne principle |
| 07/11/1990 | EP0377380A1 Apparatus for the transmission of asynchronous data over an infra-red channel |
| 07/11/1990 | EP0377205A1 Current limiter and optical receiver using it |
| 07/11/1990 | EP0377055A1 Electro-optical arrangement for the remote control of electronic apparatuses |
| 07/10/1990 | US4941208 High performance subcarrier multiplexed optical communication system with modulation index exceeding unity |
| 07/10/1990 | US4941206 Loop-type optical fiber transmission system having master and slave apparatus |
| 07/10/1990 | US4941205 Bidirectional optical data communications system |
| 07/10/1990 | US4940306 Star network optical transmission system |
| 07/05/1990 | DE3843786A1 Optical transmission device |
| 07/04/1990 | EP0376630A1 Fiber optic receiver and transceiver |
| 07/04/1990 | EP0376056A2 Optical multiplexed electrical distribution system particularly suited for vehicles |
| 07/03/1990 | US4939793 Integrated circuit assembly with optically coupled components |
| 07/03/1990 | US4939736 Protection against loss or corruption of data upon switchover of a replicated system |
| 07/03/1990 | US4939721 Node for a fast packet-switching network in optical-electrical technology |
| 07/03/1990 | US4939482 Remote optical sensing device and method |
| 07/03/1990 | US4939475 Circuit arrangement comprising an amplifier connected to an opto-electrical transducer |
| 07/03/1990 | US4938561 Optical signal amplification with coupled fibers and optical pumping energy |
| 07/03/1990 | US4938556 Superfluorescent broadband fiber laser source |
| 07/03/1990 | US4938553 Arrangement for an integrated optical spectrometer and the method for manufacturing the spectrometer |
| 06/29/1990 | CA2006303A1 Fiber optic receiver and transceiver |
| 06/28/1990 | WO1990007236A1 Signal power control system for fiber optic communication systems |
| 06/28/1990 | WO1990007141A1 Phase modulation |
| 06/27/1990 | EP0375663A2 Optical fiber guided tube-launched projectile system |
| 06/27/1990 | EP0375253A2 Saturated semiconductor laser amplifier for compensation of optical fiber dispersion |
| 06/27/1990 | CN1043416A System for connecting optical lines to wideband telecommunications exchange |
| 06/26/1990 | US4937441 Diagnosis apparatus for photo coupler and photo coupler device with diagnosis function |
| 06/20/1990 | EP0374028A1 Method and communication system with information enciphering |
| 06/20/1990 | EP0373945A1 Phase modulation |
| 06/20/1990 | CN1008498B Signal transmission system |
| 06/19/1990 | US4935918 Optic system useful with metal service lines |
| 06/19/1990 | US4935619 Wireless remote-control system for electronic apparatus |
| 06/19/1990 | US4935618 Wide bandwidth photoelectric converting circuit |
| 06/17/1990 | CA2005618A1 Semiconductor device |
| 06/15/1990 | CA2002989A1 Signal power control system for fiber optic communication systems |
| 06/14/1990 | WO1990006640A1 Fiber optic link noise measurement and optimization system |
| 06/14/1990 | WO1990006498A2 Loss detection |
| 06/13/1990 | EP0372807A2 Optical mixing device |
| 06/13/1990 | EP0372742A2 Broadband optical receiver |
| 06/13/1990 | EP0372711A2 Fail-safe optical transmission system |
| 06/13/1990 | EP0372446A1 Device for connecting optical lines with a broadband telecommunication exchange |
| 06/13/1990 | EP0235157B1 Optical communication apparatus for a vehicle |
| 06/12/1990 | US4933990 Optical privacy communication system in two-way optical transmission system |
| 06/12/1990 | US4933928 Optical communications apparatus for sending optical transmissions to a plurality of remote stations |
| 06/12/1990 | US4933825 Power supply |
| 06/12/1990 | US4933563 Infra-red receiver |
| 06/12/1990 | US4933561 Monolithic optocoupler with electrically conducting layer for diverting interference |
| 06/12/1990 | US4932748 Fiber optic light mode mixer |
| 06/06/1990 | CN1042813A Single-fiber two-way lightwave transmission method implemented by use of active directive coupling device |
| 05/31/1990 | WO1990006025A1 Photoelectric connector and photo-outlet |
| 05/30/1990 | EP0370680A2 Infrared transmitter apparatus |
| 05/30/1990 | EP0370514A2 Optical communication system and communication method |
| 05/30/1990 | EP0370252A2 Optical communication system |
| 05/30/1990 | EP0245160B1 X-ray installation with a communication network |
| 05/29/1990 | US4930049 Optical multiplexed electrical distribution system particularly suited for vehicles |
| 05/23/1990 | EP0369690A2 Frame synchronization in a network of time multiplexed optical space switches |
| 05/23/1990 | EP0369524A2 Distribution rack for making freely selectable optical connections |
| 05/23/1990 | EP0369188A2 Communications, information, maintenance diagnostic and training system |
| 05/23/1990 | EP0368985A1 Multifunction optical switch |
| 05/23/1990 | DE3836773A1 Network access circuit |
| 05/23/1990 | CN1042461A Star type comprehensive business network of multifunction common luminous source optical fiber |
| 05/22/1990 | US4928319 For underwater delivery of electricity |
| 05/22/1990 | US4928318 Optical signal transmission system including pulsed FM modulator/demodulator |
| 05/22/1990 | US4928317 Radio-optical transmission system, in particular for space telecommunications |
| 05/22/1990 | US4928316 Optical systems and methods based upon temporal stretching, modulation and recompression of ultrashort pulses |
| 05/22/1990 | US4928248 Light source driving device |
| 05/22/1990 | US4927228 Optoelectronic arrangement having a coupling between an optical transmission fibre and a semiconductor laser diode |
| 05/22/1990 | US4927221 Balanced lightwave transmission system |
| 05/18/1990 | CA2003225A1 Optoelectrical connector device and optical plug socket therfor |
| 05/17/1990 | WO1990005432A1 Communications system |
| 05/17/1990 | WO1990005420A1 A process and device for the decentralised transmission of information on a transfer path |
| 05/17/1990 | DE3936712A1 Analog-digitale, opto-elektromagnetische zaehlvorrichtung fuer fluessigkeiten Analog-to-digital opto-electro-magnetic counter for liquids |
| 05/16/1990 | EP0368673A1 Communications system |
| 05/16/1990 | EP0368282A2 A bidirectional optical transmission system having a light-interruption detecting function |
| 05/15/1990 | US4926429 Lightwave communication system having sources independently synchronized to an absolute frequency standard |
| 05/09/1990 | EP0367546A2 Microwave subcarrier generation for fiber optic systems |
| 05/09/1990 | EP0367460A1 Optical fiber bus controller |
| 05/09/1990 | EP0367452A2 A photonic switch architecture utilizing code and wavelength multiplexing |
| 05/09/1990 | EP0367407A2 Process and apparatus for controlling alignment of a transmit laser beam of a coherent detection optical communications transmitter/receiver terminal |
| 05/09/1990 | EP0367333A1 Remote-controlled receiver with resupply of energy to battery |
| 05/09/1990 | EP0367184A2 First stage circuit for an optical receiver |
| 05/09/1990 | EP0367073A2 An optical transmission line for use in an optical communication system |
| 05/08/1990 | US4923291 Optical amplification |
| 05/08/1990 | US4923270 Apparatus for optical wavelength division multiplexing |
| 05/08/1990 | US4923269 Bidirectional optical space switch |
| 05/08/1990 | US4923265 Light triggering switch |
| 05/03/1990 | DE3834821A1 Optical transmission device for digital signals |
| 05/02/1990 | EP0366302A2 Guided-wave optical wavelength duplexer |
| 05/02/1990 | EP0366243A2 Combined optical power meter and receiver |
| 05/02/1990 | EP0366176A1 Receiver for use in a remote control system |
| 05/02/1990 | CN1007844B Process and apparatus for control and for supervision of an industrial installation by transmission of information and of commands by optical means |
| 05/01/1990 | US4922481 Optical communication systems enabling minimal subscriber components |
| 05/01/1990 | US4922480 Technique for improving the percentage of semiconductor lasers usable with a predetermined wavelength specification |
| 05/01/1990 | US4922091 Direct generation of ultrafast electrical pulses |
| 05/01/1990 | US4921468 Space transmission optical communication system |
| 05/01/1990 | CA2001511A1 Microwave subcarrier generation for fiber optic systems |
| 05/01/1990 | CA1268365A1 Fiber optic bidirectional data bus tap |
| 04/30/1990 | CA2001634A1 Remote-controlled receiver with resupply of energy to battery |