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