Patents
Sitemap › H04 - Electric communication technique › H04B - Transmission › 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
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)
08/1998
08/25/1998US5799118 Integrated optical multiplexer-and-demultiplexer
08/25/1998US5799116 Electromagnetic wave-to-optical signal converting and modulating device and a communication system using the same
08/25/1998US5798858 Method and apparatus for reducing adverse effects of optical beat interference in optical communication systems
08/25/1998US5798857 Optical receiving apparatus
08/25/1998US5798856 Optical pulse generator
08/25/1998US5798855 Optical monitoring channel for wavelength division multiplexed optical communication system
08/25/1998US5798854 In-line predistorter for linearization of electronic and optical signals
08/25/1998US5798853 Optical communication system compensating for chromatic dispersion and phase conjugate light generator for use therewith
08/25/1998US5798852 All-optical device for regenerating an optical signal modulated in an RZ format
08/25/1998US5798705 Communication system capable of easily reforming to have communication units
08/25/1998US5798664 Offset cancelling amplifier circuit having Miller integrator as offset detector
08/25/1998US5798580 Contention free global interconnection
08/25/1998US5798520 Cell for optical-to-electrical signal conversion and amplification, and operation method thereof
08/25/1998US5797339 Optical remote control for trolling motors and method of control
08/25/1998CA2104191C Reduction of stimulated brillouin scattering in a fiber optic transmission system
08/21/1998CA2229114A1 Linearization enhanced operation of single-stage and dual stage electro-optic modulators
08/20/1998WO1998036516A1 Optical wavelength division multiplex transmitter
08/20/1998WO1998036514A1 Wavelength division multiplexing optical transmission system
08/20/1998WO1998036513A1 Optical fiber amplifier having variable gain
08/20/1998WO1998036512A1 Reduction of collision induced timing jitter by periodic dispersion management in soliton wdm transmission
08/20/1998WO1998036479A1 Optical amplifier and transmission system using the same
08/20/1998WO1998036302A1 Optical devices and methods
08/20/1998WO1998036294A2 Pump wavelength tuning of optical amplifiers
08/20/1998WO1998036256A1 Apparatus for measuring characteristics of an optical fibre
08/20/1998WO1998026532A3 Bitwise full duplex communication
08/20/1998DE19707313A1 Conversion of high frequency optical signals into electrical signals
08/20/1998DE19705669A1 Optischer Wellenlängenmultiplex-Sender Optical wavelength-division multiplexed transmitter
08/20/1998CA2280972A1 Reduction of collision induced timing jitter by periodic dispersion management in soliton wdm transmission
08/20/1998CA2280964A1 Optical devices and methods
08/20/1998CA2280962A1 Optical fiber amplifier having variable gain
08/19/1998EP0859495A2 High speed multimedia data network
08/19/1998EP0859486A2 System and method for synchronizing an optical source and a router in a wavelength division multiplexed fiber optic network
08/19/1998EP0859484A2 Fault restoration control method and it's apparatus in a communication network
08/19/1998EP0859482A1 Optical regeneration for soliton wdm fiberoptic transmission systems
08/19/1998EP0859481A1 WDM optical fiber communication system with improved dispersion compensation
08/19/1998EP0859480A2 Broadband flat gain optical amplifier
08/19/1998EP0859479A2 Self-powered datalink activation system
08/19/1998EP0859478A2 Wireless communications systems employing free-space optical communications links
08/19/1998EP0859477A2 Apparatus and method for testing of optical devices
08/19/1998EP0859435A2 Pump wavelength tuning of optical amplifiers and use of same in wavelength division multiplexed systems
08/19/1998EP0859267A1 Optical device for low noise amplification or modulation inversion or the generation of quiet light
08/19/1998EP0859266A2 Multi-wavelength laser source
08/19/1998EP0859260A2 Optical switch, method of manufacturing same, and optical communication equipment using same
08/19/1998EP0858976A2 Tellurite glass, optical amplifier, and light source
08/19/1998EP0858573A1 Vertical cavity surface emitting laser arrays for illumination
08/19/1998CN1190860A Loss-free optical crossed connector
08/19/1998CN1190828A Radio communication system using free space optical communication chain path
08/19/1998CN1190743A Photoelectric module for bidirection optical data transmission
08/18/1998US5796900 Apparatus and methods for interconnecting arrays of optical transmission paths employing externally located connector pads
08/18/1998US5796890 Bidirectional optically powered signal transmission apparatus
08/18/1998US5796767 Driver circuit of light-emitting device
08/18/1998US5796765 Optical pulse seqeunce generator
08/18/1998US5796559 Signal transmitting device with an optical coupler for use in a head drum assembly
08/18/1998US5796506 Submillimeter indirect heterodyne receiver and mixer element
08/18/1998US5796505 Lightwave transmitter
08/18/1998US5796503 Optical communication system wherein optical beat interference at the center is reduced
08/18/1998CA2226955A1 Optical regeneration for optical fibre transmission systems carrying non-soliton signals
08/18/1998CA2226950A1 Optical regeneration for optical fibre transmission systems with soliton signals and wavelength-division multiplexing
08/18/1998CA2075887C Optical reflective star device
08/17/1998CA2228122A1 Pump wavelength tuning of optical amplifiers and use of same in wavelength division multiplexed systems
08/14/1998CA2222002A1 Method and circuit for detecting laser mode hop
08/13/1998WO1998035459A1 Method and device for on-line regeneration of a signal transmitted by wavelength division multiplexed solitons and optical telecommunication system comprising such a regenerating device
08/13/1998WO1998035328A2 Signalling system
08/13/1998WO1998035259A1 Optical apparatus which uses a virtually imaged phased array to produce chromatic dispersion
08/13/1998WO1998035249A1 Photonic home area network fiber/power insertion apparatus
08/13/1998WO1998035181A1 A method for optically marking an elongated indication path and devices using same
08/13/1998DE19707330A1 Converter for meter readings
08/13/1998DE19705253A1 Wireless network connection device for mobile operated radio station via optical fibres
08/13/1998CA2279934A1 Signalling system
08/12/1998EP0857994A2 Method and apparatus for operating an optical modulator
08/12/1998EP0857313A1 Dispersion compensating single mode waveguide
08/12/1998EP0680618B1 A method of setting an electro-optical signal path and an apparatus for carrying out the method
08/12/1998EP0583304B1 Method and arrangement to convert an optical data signal from a multimode fibre to a corresponding signal into a single mode fibre
08/12/1998EP0559659B1 Passive optical network
08/12/1998CN1190509A High capacity communications satellite
08/12/1998CN1190503A Method and apparatus for transmitting signals in optical fibre
08/12/1998CN1190298A Control method of light amplification medium, light amplification device and system using the same
08/12/1998CN1190296A Method and apparatus for bandwidth reuse in communication network
08/12/1998CN1190184A 波长管理器 Wavelength Manager
08/11/1998US5794117 Cable television network with upstream channel specialized for sending upstream information signals
08/11/1998US5793917 Apparatus for compensating for dispersion in submarine optical amplification and transmission system
08/11/1998US5793910 Method and circuit arrangement for frequency stabilization of a WDM multiplexer/demultiplexer
08/11/1998US5793909 Optical monitoring and test access module
08/11/1998US5793908 Wavelength multiplexed light transfer unit and wavelength multiplexed light transfer system
08/11/1998US5793782 Linearized external modulator transmitter with improved dynamic range
08/11/1998US5793513 Fiber optics digital communication system and method using an optical resonator for optical signal processing
08/11/1998US5793512 Optical communication system
08/11/1998US5793511 Optical receiver with an equalizing circuit for PMD-induced interference, and system with such an optical receiver
08/11/1998US5793510 Parallel optical transmission system and optical transmission apparatus
08/11/1998US5793509 Telecommunications network
08/11/1998US5793508 Wavelength-division multiplexing telecommunication system and method providing a controlled separation of the output channels
08/11/1998US5793507 Discretely chirped multiple wavelength optical source for use in a passive optical network telecommunications system
08/11/1998US5793506 Optical transmission system for cable television signals and video and telecommunications signals
08/11/1998US5793481 System, method and device for monitoring a fiber optic cable
08/11/1998US5793256 Integrated circuit preamplifier for an optical receiver
08/11/1998CA2091525C Semiconductor optical device having device regions and diffraction gratings
08/11/1998CA2000582C Optical transmission device
08/06/1998WO1998034379A1 Distributed ethernet hub
08/06/1998WO1998034364A1 Add/drop multiplexer
08/06/1998WO1998034363A1 Wdm traffic protection
1 ... 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 ... 732