| 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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| 05/28/1985 | US4520480 Digital transmission system |
| 05/28/1985 | US4519671 Optical attenuator |
| 05/28/1985 | US4519250 Ultrasonic diagnosis apparatus using reduced numbers of photo transmission lines |
| 05/23/1985 | WO1985002271A1 Fiber optic coupler/connector device and electronic/fiber optic interface device |
| 05/22/1985 | EP0142427A2 Digital data transmission system using a coherent light wave modulation |
| 05/22/1985 | EP0142020A2 Optical transmission line |
| 05/22/1985 | EP0141954A1 Method of producing a variable optical attenuation, and device for carrying out the method |
| 05/21/1985 | US4517834 Tire pressure sensing systems |
| 05/15/1985 | EP0141771A2 Optical resonator with a monomode fibre as ring resonator, and application of such a resonator |
| 05/15/1985 | EP0141203A2 An anti-droop infra-red transmitter circuit |
| 05/15/1985 | EP0141196A2 Device for transmitting control information for cars or trains, especially for control signals |
| 05/15/1985 | EP0141192A2 Optical transmission system with laser control |
| 05/15/1985 | EP0141191A2 Laser control for optical transmission systems |
| 05/15/1985 | EP0141095A2 Duplex optical transmission system |
| 05/14/1985 | US4517456 Color multiplexing passive sensor array |
| 05/14/1985 | US4516828 Duplex communication on a single optical fiber |
| 05/14/1985 | CA1187217A1 High speed optical switch and time division optical demultiplexer |
| 05/09/1985 | WO1985001980A1 Apparatus and method for a universal electronic locking system |
| 05/08/1985 | EP0140853A1 A method of measuring the dispersion of a transmitting optical fibre |
| 05/08/1985 | EP0140578A1 Light modulator comprising an optical resonator |
| 05/08/1985 | EP0140091A2 Opto-electronic receiver |
| 05/07/1985 | US4516272 Communication network |
| 05/07/1985 | US4516221 Data communication system |
| 05/07/1985 | US4516204 Optical passive bus control system |
| 05/07/1985 | CA1186754A1 Fet amplifier with wide dynamic range |
| 05/02/1985 | EP0139461A2 Improvements relating to optical receivers |
| 05/02/1985 | EP0139387A1 High speed pulse train generator |
| 05/02/1985 | EP0139210A2 Converting circuit |
| 05/02/1985 | EP0139081A2 Optical communications system using raman repeaters and components therefor |
| 04/30/1985 | US4514843 Packet switched communication system comprising collision avoidance means |
| 04/30/1985 | CA1186379A1 Arrangement for modulating the output signal of a converter, for example an electro-optical converter |
| 04/24/1985 | EP0138698A2 Optical wavelength division multiplexer-demultiplexer for bidirectional communication |
| 04/24/1985 | EP0138584A2 Self referring type of optical communication system |
| 04/24/1985 | EP0125282A4 Optical fiber tap. |
| 04/23/1985 | US4513305 Multi-wavelength demultiplexer for fiber optical communication |
| 04/23/1985 | CA1186078A1 Optical communication system |
| 04/17/1985 | EP0137344A2 Single cable optical fibre signaling system |
| 04/16/1985 | US4512036 Communications exchange |
| 04/16/1985 | US4511934 Video tape recorder |
| 04/16/1985 | US4511208 Optical communication system |
| 04/16/1985 | US4511207 Fiber optic data distributor |
| 04/16/1985 | CA1185650A1 Overhead electric transmission systems |
| 04/11/1985 | WO1985001592A1 Light modulator comprising an optical resonator |
| 04/10/1985 | EP0136645A2 X-ray diagnostic arrangement with several radiological systems |
| 04/03/1985 | EP0136271A1 Apparatus for detecting tapping of light energy from an optical fiber |
| 04/03/1985 | EP0136228A2 Isolating circuit with an optoelectronic coupler |
| 04/02/1985 | US4509211 Infrared extension system |
| 04/02/1985 | US4509117 Communications network access rights arbitration |
| 03/26/1985 | US4507775 Optical transmitter with light source and optical amplifier combination |
| 03/26/1985 | US4507645 Assembly for the transmission of control signals to and/or from mobile equipment |
| 03/20/1985 | EP0134468A2 Receiving amplifier for the amplification of a photo current |
| 03/19/1985 | US4506388 Process and apparatus for the coherent detection and demodulation of a phase-modulated carrier wave in a random polarization state |
| 03/19/1985 | US4506356 Service integrated digital transmission system operating in time multiplex |
| 03/19/1985 | US4506153 Process signal collecting apparatus |
| 03/12/1985 | US4504976 Device for regulating a laser diode |
| 03/12/1985 | US4504975 System for transmitting digital signals over an optical fiber |
| 03/12/1985 | US4504974 Opto-electronic repeater |
| 03/12/1985 | US4504797 Preamplifier circuits |
| 03/12/1985 | US4504122 System and method for time sharing laser system which also generates a local oscillator signal |
| 03/12/1985 | US4504111 Method of multiplexing transmission chanels in a step-index optical fibre and device for carrying out the method |
| 03/12/1985 | CA1183900A1 Optically coupled bidirectional transceiver |
| 03/05/1985 | US4503546 Pulse signal transmission system |
| 03/05/1985 | US4502754 Optical fiber interconnection mechanism |
| 03/05/1985 | US4502753 Termination device using a directional coupler which compensates for the parasitic radiation from a light source via a compensation signal |
| 02/28/1985 | WO1985000946A1 Maintenance response signalling arrangement for a digital transmission system |
| 02/28/1985 | WO1985000945A1 Control signalling arrangement for a digital transmission system |
| 02/27/1985 | EP0133474A2 A data processing system including an infra-red coupled remote data entry device |
| 02/26/1985 | CA1183218A1 Optical data transmission system |
| 02/20/1985 | EP0133394A1 Infrared light source comprising a semiconductor laser coupled to means for mode selection and power control |
| 02/19/1985 | US4501022 Of an analog signal |
| 02/19/1985 | US4501021 Data communications system |
| 02/12/1985 | US4499609 Symmetrically clamped fiber optic receiver |
| 02/12/1985 | US4499608 Data processing terminal |
| 02/12/1985 | US4499607 Geometrically-integrated architecture of microcircuits for high-speed computers |
| 02/12/1985 | US4499600 Supervision of transmission systems |
| 02/12/1985 | CA1182549A1 Multilayered optical integrated circuit |
| 02/12/1985 | CA1182533A1 Well logging fiber optic communication system |
| 02/05/1985 | US4498197 Optical receiver |
| 02/05/1985 | US4498001 Transimpedance amplifier for optical receivers |
| 02/05/1985 | CA1182174A1 Laser light sources |
| 01/31/1985 | WO1985000484A1 Wavelength division multiplexing optical communications systems |
| 01/31/1985 | WO1985000483A1 Method for directly transmitting images |
| 01/31/1985 | WO1985000452A1 Data processing system including a data transmission bus |
| 01/29/1985 | US4496211 Lightpipe network with optical devices for distributing electromagnetic radiation |
| 01/29/1985 | CA1181818A1 Noise detector and signal receiver arrangement for a frequency modulated receiver |
| 01/23/1985 | EP0131917A2 Frequency multiplex multichannel audio signal transmission system with intensity-modulated infrared radiation, especially for reproducing sound recordings on film copies apart from the original language, simultaneously in various other languages |
| 01/23/1985 | EP0131818A2 Optical FDM system |
| 01/23/1985 | EP0131722A1 Opto-electronic apparatus for spatial switching |
| 01/22/1985 | US4495656 Fiber optic word generator |
| 01/22/1985 | US4495421 Optical power supply switching apparatus |
| 01/22/1985 | US4495410 Light receiving automatic gain control circuit |
| 01/22/1985 | CA1181488A1 Optical transmission system |
| 01/22/1985 | CA1181275A1 Apparatus for the transmission and distribution of light radiation |
| 01/15/1985 | US4494241 For wave shaping signals |
| 01/15/1985 | US4494185 Data processing system employing broadcast packet switching |
| 01/09/1985 | EP0130529A1 Net of addressable photodetectors |
| 01/09/1985 | EP0130396A2 Star coupler for local networks of the optical telecommunication technique |
| 01/08/1985 | US4493114 Method of communicating in the ultraviolet spectrum |
| 01/08/1985 | US4493113 Bidirectional fiber optic transmission systems and photodiodes for use in such systems |
| 01/08/1985 | US4492931 Infra-red receiver front end |