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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11/24/1998 | US5841919 Optical wavelength multiplexer/demultiplexer |
11/24/1998 | US5841917 Optical cross-connect switch using a pin grid actuator |
11/24/1998 | US5841592 Optical bench and use thereof |
11/24/1998 | US5841573 Optical amplifier |
11/24/1998 | US5841571 Optical receiver having a function for suppressing useless intensity modulation components |
11/24/1998 | US5841564 Apparatus for communication by an electronic device and method for communicating between electronic devices |
11/24/1998 | US5841563 Method and system for efficient optical transmission of NTSC video |
11/24/1998 | US5841562 Bidirectional modular optoelectronic transceiver assembly |
11/24/1998 | US5841560 System for optical pulse train compression and packet generation |
11/24/1998 | US5841558 Optical transmission apparatus |
11/24/1998 | US5841557 Method and apparatus for scrambling the polarization of signal lights forming a wavelength division multiplexed signal light |
11/24/1998 | US5841205 Branching unit for underwater telecommunications systems |
11/24/1998 | CA2053022C Reflective optical modulator |
11/19/1998 | WO1998052314A2 An add and drop node for optical communication systems |
11/19/1998 | WO1998052306A2 Optical add/drop device |
11/19/1998 | WO1998052305A1 Redundant optical power supply for remote pumping of fiber optic gain modules |
11/19/1998 | WO1998052304A1 External optical modulation system comprising a predistorter |
11/19/1998 | WO1998052303A1 Optical communications system including arrangement connecting a multimode fibre to a single mode fibre |
11/19/1998 | DE19720619A1 Light signal multiplexing method for optical communications or measuring system |
11/19/1998 | CA2289511A1 External optical modulation system comprising a predistorter |
11/18/1998 | EP0878977A2 Improvements in an SDH-network provided with a shared protection system |
11/18/1998 | EP0878927A1 Improvement in the reliability of an optical communication system and of an optical amplifying system, and a method suitable to this aim |
11/18/1998 | EP0878926A2 Optical receiver |
11/18/1998 | EP0878925A2 Wavelength locking method for tunable filter, wavelength locking apparatus and wavelength devision multiplexing communication network using the same |
11/18/1998 | EP0878882A2 Current control for an analog optical link |
11/18/1998 | EP0878880A1 Method and apparatusfor space based operation of optical waveguide amplifiers |
11/18/1998 | EP0878722A1 Wavelength division multiplex branching unit and method of operation for optical transmission systems |
11/18/1998 | EP0878079A1 Self-healing network |
11/18/1998 | CN1199522A Transmitting supervisory messages from fiber amplifier |
11/18/1998 | CN1199521A Remote controller |
11/18/1998 | CN1199293A Self-timing method and equipment for optical transmission network |
11/18/1998 | CN1199291A Optical transmission system |
11/18/1998 | CN1199290A Optical transmission line |
11/18/1998 | CN1199288A Repeater apparatus having isolation circuit |
11/17/1998 | US5838770 Portable telephone system |
11/17/1998 | US5838731 Burst-mode digital receiver |
11/17/1998 | US5838488 Optical amplifier gain control circuitry using a variable reference corresponding to the number of multiplexed wavelengths |
11/17/1998 | US5838487 Optical amplifiers |
11/17/1998 | US5838477 Optical submarine branching device |
11/17/1998 | US5838476 Input monitoring system for optical amplifying repeater |
11/17/1998 | US5838475 Optical regenerator and an optical transmission system |
11/17/1998 | US5838474 Process and circuit arrangement for transmitting received signals from an antenna to a base station of a radio system |
11/17/1998 | US5838473 For the distribution of a signal |
11/17/1998 | US5838472 Method and apparatus for locating a transmitter of a diffuse infrared signal within an enclosed area |
11/17/1998 | US5838471 Infrared echo canceling |
11/17/1998 | US5838278 Antenna pointing apparatus mounted on satellite using feed forward with reference model |
11/17/1998 | US5838116 Fluorescent light ballast with information transmission circuitry |
11/17/1998 | US5837995 Wavelength-controllable voltage-phase photodiode optoelectronic switch ("opsistor") |
11/16/1998 | CA2234908A1 Improvements in a fiber optic synchronous digital hierarchy telecommunication network provided with a protection system shared on the network |
11/16/1998 | CA2210486A1 Method and arrangement for an interruption-proof optical satellite linkage in leo networks |
11/13/1998 | CA2237504A1 Improvement in the reliability of an optical communication system and of an optical amplifying system, and a method suitable to this aim |
11/12/1998 | WO1998051025A1 Polarized light communication device, transmitter, laser, polarized light communication device for organism, reflected light detector and pulse wave detector |
11/12/1998 | WO1998051024A1 Wdm optical communication systems with wavelength-stabilized optical selectors |
11/12/1998 | WO1998050988A1 Laser wavelength control device |
11/12/1998 | WO1998050983A1 Communications system |
11/12/1998 | WO1998050824A1 Device and method for regenerating a train of solitons |
11/12/1998 | CA2309437A1 Wdm optical communication systems with wavelength-stabilized optical selectors |
11/12/1998 | CA2287995A1 Device and method for regenerating a train of solitons |
11/12/1998 | CA2235080A1 Optical transmission system |
11/11/1998 | EP0877515A2 Circuit for converting unipolar input to bipolar output |
11/11/1998 | EP0877502A2 Transmitting apparatus and receiving apparatus for wavelength-division-multiplex signal transmission |
11/11/1998 | EP0877496A2 Optical transmission line with reduction of the wavelength dispersion distortion |
11/11/1998 | EP0877495A2 Optical transmitter-receiver |
11/11/1998 | EP0877477A2 Optical transmitter having pre-modulation amplification |
11/11/1998 | EP0876716A1 Thermal down-mixing in diode laser transmitters to suppress stimulated brillouin scattering |
11/11/1998 | EP0719492B1 Optical communications network |
11/11/1998 | EP0687400B1 An optoelectric transducer |
11/11/1998 | CN1198860A Switchable wavelength add/drop component |
11/11/1998 | CN1198858A Compensation of dispersion |
11/11/1998 | CN1198624A Wave division multiplex multi-use communication networt remote-control system |
11/11/1998 | CN1198619A Multi-jump communication system |
11/10/1998 | US5835388 Apparatus and method for optical transmission of serial data using a serial communications port |
11/10/1998 | US5835260 Optical amplifier, optical amplifying method and optical transmission system using the optical amplifier |
11/10/1998 | US5835250 Device for driving light emitting element |
11/10/1998 | US5835203 Vehicle laser radar system |
11/10/1998 | US5834763 Low noise photon coupled circuit |
11/08/1998 | CA2204829A1 Optical receiver suitable for optical interconnects |
11/05/1998 | WO1998049795A1 Optical add-drop multiplexers compatible with very dense wdm optical communication systems |
11/05/1998 | WO1998049792A1 Optical transmitter |
11/05/1998 | WO1998033289A3 Switchable wavelength router |
11/05/1998 | CA2259172A1 Optical transmitter |
11/04/1998 | EP0876019A2 Optical receiver and demultiplexer for free-space wavelength division multiplexing communications system |
11/04/1998 | EP0876014A2 Automatic gain control for free-space optical telecommunication links |
11/04/1998 | EP0876013A1 Method and device for function without interruption of optical communication links between satellites in LEO networks |
11/04/1998 | EP0876012A2 Sensor array tracking and detection system |
11/04/1998 | EP0876011A2 Optical receiver for wireless data transmission |
11/04/1998 | EP0876010A2 Optical transmitting apparatus, optical receiving apparatus, and optical transmitting-receiving system |
11/04/1998 | EP0876006A2 Multi-hop telecommunications system |
11/04/1998 | EP0875969A1 Optical fiber amplifier and its driving method |
11/04/1998 | EP0875105A1 Self-stimulation signal detection in an optical transmission system |
11/04/1998 | CN1198276A Improvements in or relating to optical add/drop wavelength division multiplex systems |
11/04/1998 | CN1198235A Displaying data transmitted by radio |
11/04/1998 | CN1198219A Dispersion compensating single mode waveguide |
11/04/1998 | CN1198051A 光传输系统及其监控方法 Optical transmission system and monitoring methods |
11/03/1998 | US5832147 Holographic optical interconnect system and method for board-to-board and chip-to-chip communication interconnections |
11/03/1998 | US5832036 Radio relay apparatus |
11/03/1998 | US5832011 Laser |
11/03/1998 | US5831761 Wavelength division multiplexed optical waveguide system |
11/03/1998 | US5831754 Optical amplifier |
11/03/1998 | US5831753 Optical fiber transmission system |