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) |
---|
12/13/1988 | US4790656 Dual homodyne detection system to measure asymmetric spectrum by using angle mirrors |
12/13/1988 | US4790619 Transmitters; glass of germanium, silicon or arsenic oxides with a heavy metal oxide |
12/13/1988 | US4790616 Optical separating module |
12/13/1988 | CA1246692A1 Device for transmitting through and optical coupling data issuing from a steering wheel to an element mounted on a vehicle |
12/13/1988 | CA1246679A1 Optical composite transceiver |
12/13/1988 | CA1246678A1 Optical heterodyne receiver |
12/13/1988 | CA1246677A1 Optical communication system |
12/08/1988 | DE3716896A1 Method for optical telecommunication between satellites |
12/07/1988 | EP0294167A1 Optical devices |
12/07/1988 | EP0294133A2 Protocols for very high-speed optical LANs |
12/06/1988 | US4789987 Automatic modulation control apparatus |
12/06/1988 | US4789213 Electro-optical modulator having a monomode light waveguide modulator |
12/06/1988 | CA1246125A1 Steering switch device |
12/01/1988 | WO1988009518A1 Apparatus to launch separated mode groups into optical fibers |
11/30/1988 | EP0293086A1 Surveillance system |
11/29/1988 | US4788458 Two wire interface circuit |
11/29/1988 | US4787927 Fabrication of optical fibers |
11/29/1988 | US4787693 Passive star coupler |
11/29/1988 | US4787692 Electro optical switch architectures |
11/24/1988 | DE3816018A1 Protective circuit for infrared receivers |
11/24/1988 | DE3716247A1 Optical communication system with wavelength-division and polarization-division multiplex |
11/24/1988 | DE3715294A1 Method for data transmission |
11/23/1988 | EP0292117A1 Automatic threshold adjustment circuit for digital data communication |
11/22/1988 | US4786797 Electro-optical data handling system with noise immunity |
11/22/1988 | US4786129 Optical coupling assembly |
11/22/1988 | CA1245329A1 Apparatus for the controlled transmission of light |
11/22/1988 | CA1245292A1 Spread spectrum code-division-multiple-access (ss- cdma) lightwave communication system |
11/22/1988 | CA1245291A1 High-reliability fiber optic repeater |
11/22/1988 | CA1245290A1 Power transmission through a long wavelength optical fibre |
11/17/1988 | WO1988009093A1 Control of optical systems |
11/17/1988 | EP0291344A2 Wireless data coupling system |
11/09/1988 | EP0290297A2 Rejection filter for optical signals and its application in ring interferometers |
11/09/1988 | EP0290243A2 Optically powered sensor system |
11/09/1988 | EP0290191A2 Method for the operation of a distributed feedback laser |
11/08/1988 | US4783852 Method and apparatus for acquiring information using a relative phase deviation of the optical signal of a local oscillator of a homodyne receiver |
11/08/1988 | US4783851 Optical communication system |
11/08/1988 | US4783137 Fiber optic coupling system |
11/08/1988 | CA1244519A1 Optical networks |
11/03/1988 | WO1988008651A1 Surveillance system |
11/03/1988 | WO1988008573A1 Radiation-coupled daisy chain |
11/02/1988 | EP0289379A2 Sensor of a physical parameter |
11/02/1988 | EP0289306A2 Optical communications apparatus |
11/01/1988 | US4781428 Devices and methods for selectively tapping optical energy from an optical fibre |
11/01/1988 | US4781427 Active star centered fiber optic local area network |
11/01/1988 | CA1243857A1 Light detector having a photodiode with bias control |
10/26/1988 | EP0288418A2 Optical information transmission method with heterodyne reception |
10/26/1988 | EP0287878A1 Dual media local area network interfacing |
10/24/1988 | EP0236432A4 Optical fiber bandwidth limiting method. |
10/20/1988 | WO1988008232A1 Transmission system |
10/20/1988 | WO1988008231A1 Transmitter and transceiver for a coherent optical system |
10/20/1988 | WO1988008205A1 Monolithic integrated waveguide-photodiode-fet combination |
10/19/1988 | EP0287415A1 Optic fibre transmission device, particularly for underwater environment |
10/19/1988 | EP0287379A1 Transmission system |
10/19/1988 | EP0287378A1 Transmitter and transceiver for a coherent optical system |
10/19/1988 | EP0287124A2 Method of coated fiber identification in optical transmission network |
10/19/1988 | EP0287032A2 Optical alignment system |
10/18/1988 | US4779281 Light emitting chip and optical communication apparatus using the same |
10/18/1988 | US4779265 Multiple access communication system |
10/18/1988 | US4778238 Optical communications systems and process for signal amplification using stimulated brillouin scattering (SBS) and laser utilized in the system |
10/12/1988 | EP0286350A2 Optical fiber communication system |
10/11/1988 | US4777664 For a local optical fibre network |
10/11/1988 | US4777663 Data rate limiter for optical transmission system |
10/11/1988 | US4777662 Optical communication process |
10/11/1988 | US4777661 Apparatus and method for self-referencing and multiplexing intensity modulating fiber optic sensors |
10/11/1988 | US4777660 Retroreflective optical communication system |
10/11/1988 | US4776660 Light diplexer of a communication system comprising three light connections |
10/11/1988 | CA1243078A1 Coupling device for single mode optical fiber and communications system comprising same |
10/11/1988 | CA1242908A1 Optical coupling device |
10/06/1988 | WO1988007313A3 Improvements in electro optical switch architectures |
10/05/1988 | EP0285523A1 Optical-fibre delay line for coherent signal processing, and its uses in filtering, correlation, and spectral analysis |
10/05/1988 | EP0284910A1 Integrated-optical device for bi-directional optical communications- or signal- transmission |
10/04/1988 | US4776041 Collision detection in a fiber optic local area network |
10/04/1988 | US4776000 Telephone communications system with portable handsets |
10/04/1988 | US4775972 Optical fiber communication for local area networks with frequency-division-multiplexing |
10/04/1988 | US4775971 Optical communication system |
10/04/1988 | US4775210 Voice and data distribution system with fiber optic multinode star network |
09/27/1988 | US4774717 For generating a rectangular waveform signal |
09/27/1988 | US4773722 Two-way coupler for optical fibers |
09/22/1988 | WO1988007313A2 Improvements in electro optical switch architectures |
09/22/1988 | WO1988007216A1 Apparatus for optical wavelength division multiplexing |
09/22/1988 | DE3709142A1 Arrangement for transmitting laser light |
09/21/1988 | EP0282878A2 Arrangement of optical-integrated spectrometer and method for the making the same |
09/21/1988 | EP0282801A1 Controlling the multiplication factor of avalanche photodiodes in optical receivers |
09/21/1988 | EP0282558A1 Bistable optical device |
09/21/1988 | CN88101159A Technique for repelling carriers in optical communication to minimize mutual interference |
09/20/1988 | US4773063 Optical wavelength division multiplexing/demultiplexing system |
09/20/1988 | US4772859 Microwave temperature compensated cascadable amplifier for fiber optical receiver |
09/20/1988 | US4772854 All optical repeater |
09/20/1988 | CA1242252A1 Data transmission system |
09/20/1988 | CA1242249A1 Optical fibre networks |
09/14/1988 | EP0282399A1 Base station receiving system for optically transmitted data issued from n mobile stations |
09/14/1988 | EP0282228A1 Improvements relating to pipeline sort matrices |
09/14/1988 | EP0282227A1 Signal switching processor |
09/14/1988 | EP0282071A2 Optical switching system |
09/13/1988 | US4771398 Method and apparatus for optical RF phase equalization |
09/13/1988 | US4771397 Method and apparatus for optical RF amplitude equalization |
09/13/1988 | US4771219 Light emitting diode control circuit |
09/13/1988 | US4770485 Apparatus to launch separated mode groups into optical fibers |
09/13/1988 | CA1241995A1 Optical transmission network |
09/13/1988 | CA1241994A1 Optical transmission |