| 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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| 01/08/1985 | US4492427 Optical slip ring assembly |
| 01/02/1985 | EP0130139A1 Circuit arrangement for the electrically isolated reception of binary electrical signals |
| 01/02/1985 | CA1180389A Redundant light source circuit |
| 01/01/1985 | US4491984 Method and apparatus for detecting interruptions in the transmission of light signals |
| 01/01/1985 | US4491983 Information distribution system |
| 01/01/1985 | US4491982 Terrestrial light beam communication system |
| 01/01/1985 | US4491942 Circuit for recognizing data collisions in an optical data bus and circuit for recognizing the data-free status of the bus |
| 01/01/1985 | US4491830 Fire alarm system |
| 12/27/1984 | EP0129305A2 Optical fibre receiver |
| 12/27/1984 | CA1180080A Optical receiver |
| 12/27/1984 | CA1180061A Electrical-optical interface network |
| 12/20/1984 | WO1984004973A1 Active optical fiber tap |
| 12/19/1984 | EP0128473A2 Receiver for optical communication |
| 12/12/1984 | EP0127871A1 Optical spatial switching block |
| 12/12/1984 | EP0127743A2 Light detecting circuit |
| 12/05/1984 | EP0127570A2 Local communication system with a star network and optical channels |
| 12/04/1984 | US4486071 Optical coupling device |
| 12/04/1984 | CA1179032A1 Coaxial cable/fiber optic bus network |
| 11/28/1984 | EP0126065A1 Continuously variable fiber optic delay line. |
| 11/27/1984 | US4485475 Optical source peak wavelength control using a wavelength feedback network |
| 11/27/1984 | US4485311 Drive circuit for at least one light-emitting diode |
| 11/27/1984 | US4484795 Delay equalization for single mode optical fibers |
| 11/27/1984 | CA1178686A1 Line protocol for communication system |
| 11/27/1984 | CA1178464A1 Matrix-type optical concentrator-distributor |
| 11/22/1984 | WO1984004638A1 Communication network |
| 11/14/1984 | EP0124523A1 Fiber optic switch and discretely variable delay line. |
| 11/13/1984 | US4482980 Communications system |
| 11/13/1984 | US4482202 Optical glass fiber transmission lines coupled junction circulators |
| 11/13/1984 | CA1177931A1 Two-way optical data communication system |
| 11/13/1984 | CA1177892A1 Method and arrangement for increasing the dynamic range at the input stage of a receiver in an optical fibre information transmission system |
| 11/06/1984 | US4481678 Signal receiving circuit for optical communication |
| 11/06/1984 | US4481677 Optical transmitting and receiving apparatus |
| 11/06/1984 | US4481676 Transmitter-receiver system for variable-rate digital data transmission via optical-fiber links |
| 11/06/1984 | US4481621 Service integrated digital signal transmission system |
| 10/23/1984 | US4479266 Multiple-threshold optical receiver for a variable-rate digital data transmission system |
| 10/23/1984 | US4479264 Transducer for optical data transmission |
| 10/23/1984 | US4479052 Avalanche photo-diode bias circuit |
| 10/23/1984 | US4478494 Optical bypass switch |
| 10/23/1984 | US4478488 Information transmission using dispersive optical fibers |
| 10/09/1984 | CA1175919A1 Device for discriminating between two values of a signal with dc offset compensation |
| 10/03/1984 | EP0120457A2 Optical transmitter and receiver |
| 10/03/1984 | EP0120444A2 Circuit arrangement for the suppression of unwanted signals |
| 10/02/1984 | CA1175535A1 Process for switching time-multiplexed signals transmitted on a carrier, including in particular an optical carrier, and a device embodying this process |
| 09/26/1984 | EP0119350A1 Multifunction steering wheel |
| 09/25/1984 | US4473896 Tactical Expendable Device |
| 09/25/1984 | US4473745 Optical receiver with series-connected p-i-n diodes |
| 09/19/1984 | EP0118467A1 Optically coupled integrated circuit array. |
| 09/19/1984 | EP0108792A4 Fet amplifier with wide dynamic range. |
| 09/19/1984 | EP0078843A4 Information distribution system. |
| 09/18/1984 | US4472052 Measuring signal transmission device for transmitting optical signals between a rotating portion and a rotationally stationary portion |
| 09/12/1984 | EP0117916A2 Optical star bus with an active coupler |
| 09/12/1984 | EP0117868A1 Method and device for separating position of fault in light transmission line |
| 09/11/1984 | US4471494 Optical transmission system for high frequency digital signals |
| 09/11/1984 | US4471353 Push-button switch for an electrical power source |
| 09/11/1984 | US4470685 Photographic system |
| 09/04/1984 | US4470154 Optical communication network |
| 08/28/1984 | US4468785 Telemetry system with signal booster for digital data transmission through a transmission line |
| 08/28/1984 | US4468766 Optical RF downconverter |
| 08/28/1984 | US4468765 Electronic telephone exchanges and optical fiber links for use therein |
| 08/28/1984 | US4468091 Fiber optic energy sensor and demodulation system and method of making same |
| 08/28/1984 | US4468090 Fibre optical arrangement for the transmission, in a manner preserving its polarization, of light of a defined, linear polarization state |
| 08/21/1984 | US4467468 Optical communication system |
| 08/21/1984 | US4467192 Optical receiver |
| 08/15/1984 | EP0115768A2 Optical communication system |
| 08/08/1984 | EP0115445A2 Optical heterodyne detection pulse receiving system and method |
| 08/08/1984 | EP0115240A1 Telephone set with a bidirectional infrared link between handset and fixed module connected to a subscriber's line |
| 08/08/1984 | EP0114985A1 System for interfacing remote functional units to a terminal unit |
| 08/07/1984 | US4464012 Broad-band communication system comprising an optical broad-band cable network |
| 08/01/1984 | EP0114322A2 Method and arrangement for converting a two-level binary signal into a pulse-coded signal presenting data pulses and refreshing pulses |
| 08/01/1984 | EP0114238A2 Final stage of an optical transmitter for digital signal transmission |
| 07/18/1984 | EP0113383A1 Remote control for construction machines, especially for a concrete pump co-operating with a distribution arm |
| 07/17/1984 | US4461013 Frequency modulation transmitter for voice or data |
| 07/17/1984 | US4460250 Acousto-optical channelized processor |
| 07/17/1984 | US4460241 Telecommunication system with fiberguide signal filtering |
| 07/17/1984 | CA1171147A1 Communications tuning construction |
| 07/11/1984 | EP0113082A2 Optical signal receiving apparatus |
| 07/10/1984 | US4459591 Remote-control operating system and method for selectively addressing code-addressable receivers, particularly to execute switching function in automotive vehicles |
| 07/10/1984 | CA1170756A1 Remote seismic data system |
| 07/10/1984 | CA1170746A1 Rotor measurement system using reflected load transmission |
| 07/03/1984 | US4457582 Fibre optic terminals for use with bidirectional optical fibres |
| 07/03/1984 | US4457581 Passive fiber optic data bus configurations |
| 06/27/1984 | EP0112227A2 Light emitting diode device arranged to suppress the thermal time constant effects |
| 06/27/1984 | EP0112076A2 Light source for optic communication system |
| 06/27/1984 | EP0111582A1 Fault locating arrangement for an optical fibre cable link |
| 06/26/1984 | US4456903 Optical signal transmission system for an automotive vehicle |
| 06/26/1984 | US4456793 Cordless telephone system |
| 06/20/1984 | EP0111332A2 Method for the detection of data collisions in an optical data bus |
| 06/20/1984 | EP0111173A2 Circuit arrangement for controlling the gain of preamplifier stages |
| 06/20/1984 | EP0110888A1 A cordless telephone system. |
| 06/19/1984 | US4455643 High speed optical switch and time division optical demultiplexer using a control beam at a linear/nonlinear interface |
| 06/13/1984 | EP0110390A2 Collision avoidance circuit for packet switched communication system |
| 06/12/1984 | US4453802 Evanescent-wave coupling device |
| 05/30/1984 | EP0109618A1 Field instrumentation system |
| 05/29/1984 | US4451916 Repeatered, multi-channel fiber optic communication network having fault isolation system |
| 05/29/1984 | CA1168311A1 Digital transmission systems |
| 05/24/1984 | WO1984002006A1 Continuously variable fiber optic delay line |
| 05/24/1984 | WO1984002005A1 Fiber optic switch and discretely variable delay line |
| 05/23/1984 | EP0108989A2 Arrangement for optical information transmission between a plurality of subscribers |
| 05/23/1984 | EP0108792A1 Fet amplifier with wide dynamic range. |
| 05/22/1984 | US4450567 Optical repeater integrated lasers |