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)
11/1998
11/03/1998US5831752 Optical packet processing
11/03/1998US5831731 Optical bit error tester for testing an optical device
10/1998
10/29/1998WO1998036294A3 Pump wavelength tuning of optical amplifiers
10/29/1998DE19717457A1 Variable optical delay line
10/28/1998EP0874490A2 Optical transmission apparatus
10/28/1998EP0874482A2 Arrangement for transmitting and receiving optical signals
10/28/1998EP0874481A2 Optical subscriber network system
10/28/1998EP0874480A2 Photo signal amplification transmission system
10/28/1998EP0874479A2 Apparatus for optical wireless communication
10/28/1998EP0874478A2 Test method for a network element of an optical transmission system and network element
10/28/1998EP0874477A2 Signal transmission system and method for supervising the same
10/28/1998EP0874460A2 Adaptive threshold digital receiver circuit for optical signals
10/28/1998EP0873612A1 Switchable wavelength add/drop component
10/28/1998EP0873605A1 Transmitting supervisory messages from a fiber amplifier
10/28/1998EP0873604A1 Optimal allocation of multiplexing equipment and distribution of load in a fiber optic network
10/28/1998EP0873603A1 Optically cross-linked communication system (occs)
10/28/1998EP0873602A1 High capacity communications satellite
10/28/1998EP0873540A1 Device for cascading optical amplifiers
10/28/1998EP0749645B1 An amplifier circuit
10/28/1998EP0571382B1 Optical process variable transmitter
10/28/1998CN1197563A Improvement inor relating to optical add/drop wavelength division multiplex systems
10/28/1998CN1197562A Signal routing for fiber optic networks
10/28/1998CN1197560A System, method and device for monitoring a fiber optic cable
10/28/1998CN1197522A Process for controlling the access of data station to mobile data carriers
10/28/1998CN1040492C Digital optical communication system comprising an optical waveguide with dispersion at the operating wavelength
10/27/1998US5828807 Optical network unit (ONU) mechanical enclosure
10/27/1998US5828801 Light signal switching device and optical communication system
10/27/1998US5828800 Self-aligned mechanical M×N optical switch
10/27/1998US5828681 Wavelength control of data-modulated lasers and method using same
10/27/1998US5828669 Network system connecting node devices with plural channels, node device used therein, and transmission control method therefor
10/27/1998US5828651 Device for duplicating connectionless server
10/27/1998US5828486 Optical amplifier device for wavelength division multiplexing optical transmission
10/27/1998US5828478 System for transmitting RZ pulses over an amplified optical line, in particular over long distances
10/27/1998US5828477 Multi-tone phase modulation for light wave communication system
10/27/1998US5828476 Dual rate, burst mode, radiation hardened, optical transceiver
10/27/1998US5828472 Photonic switching matrix
10/27/1998US5828246 Circuit in CMOS technology for high speed driving of optical sources
10/27/1998US5828146 Apparatus for the bidirectional transfer of information
10/25/1998CA2235915A1 Optical signal amplification control system
10/25/1998CA2235050A1 Wavelength dividing circuit with arrayed-waveguide grating monitor port
10/22/1998WO1998047255A1 Method and apparatus for an optical bi-directional line switched ring data communications system
10/22/1998WO1998047254A2 N x M OPTICAL WAVELENGTH ROUTING SWITCH
10/22/1998WO1998047040A2 1 x N DIGITALLY PROGRAMMABLE OPTICAL ROUTING SWITCH
10/22/1998WO1998047039A2 Method and apparatus for operation, protection, and restoration of heterogeneous optical communication networks
10/22/1998WO1998046484A1 Hollow covering device for lightwave or radiant energy systems
10/22/1998CA2286593A1 Method and apparatus for an optical bi-directional line switched ring data communications system
10/22/1998CA2286342A1 1 x n digitally programmable optical routing switch
10/22/1998CA2279240A1 Method and apparatus for operation, protection, and restoration of heterogeneous optical communication networks
10/22/1998CA2234961A1 System for transmitting and receiving optical signals
10/21/1998EP0872968A2 Transmitter arrangement of optical signals
10/21/1998EP0872121A1 Communication system using a transmitter and transceiver for use with multiple receivers
10/21/1998EP0872063A1 System related to information-carrying signals
10/21/1998EP0872050A1 Full duplex optical modem for broadband access network
10/21/1998EP0872049A1 Robust method and apparatus enabling multi-mode wireless optical communication
10/21/1998EP0872048A1 Discriminating infrared signal detector and systems utilizing the same
10/21/1998EP0801827B1 A coupling arrangement between a multi-mode light source and an optical fiber through an intermediate optical fiber length
10/21/1998EP0776554B1 Optical emitting head including a laser and a modulator
10/21/1998EP0629316B1 Optical self-heterodyne remote antenna system
10/21/1998CN1196849A Optically cross-linked communication system (OCCS)
10/21/1998CN1196619A Controller for interdynamic softward broadcasting device
10/20/1998US5825949 Optical wavelength division multiplexer for coupling to data sources and sinks, wherein at least two data sources and sinks operate with different communication protocols
10/20/1998US5825829 Modulator for a broadband communications system
10/20/1998US5825792 Wavelength monitoring and control assembly for WDM optical transmission systems
10/20/1998US5825530 Arrangement and method for operating and testing an optical device
10/20/1998US5825521 Method of determining inter-symbol interference in transmission systems
10/20/1998US5825516 Optical power meter for detecting loss factors in fiber optic communications
10/20/1998US5825515 Supervisory apparatus for optical transmission system
10/20/1998CA2124708C Spectrum-sliced fiber amplifier light source for multi-channel wavelength-division-multiplexed applications
10/20/1998CA2072535C Equalizer for optically transmitted information signals
10/15/1998WO1998046038A2 Method for transmitting additional data signals and a useful data signal by means of optical links
10/15/1998WO1998045957A1 Wireless telephone data exchange system
10/15/1998WO1998032255A3 Optical power transmission monitoring system
10/15/1998WO1998031133A3 Satellite distributed television
10/15/1998DE19730294C1 Method of transmitting signalling and digital control information for wavelength division multiplex (WDM) networks
10/15/1998DE19713952C1 Verfahren zur Übertragung von Zusatzdatensignalen und einem Nutzdatensignal über optische Verbindungen A method for transmitting additional data signals and a user data signal over optical links
10/14/1998EP0871343A2 Splitterless optical broadcast switch
10/14/1998EP0871304A1 Method and device for forming an optical binary signal
10/14/1998EP0871302A2 Dynamic gain control system for optical amplifier and method thereof
10/14/1998EP0871301A2 Gain equalizer and optical amplifying transmission line
10/14/1998EP0871061A1 Wavelength converter of optical binary signals
10/14/1998EP0871057A2 Waveguide semiconductor modulator with improved mode matching
10/14/1998EP0870411A1 Method and system for optical restoration tributary switching in a fiber network
10/14/1998EP0870375A1 Transient suppression in optical wavelength division multiple network
10/14/1998EP0870374A1 Monitoring of an optical line
10/14/1998EP0870208A2 Fiber optic system with simultaneous switching and raman
10/14/1998EP0592690B1 Method for identifying optical line
10/14/1998CN2294543Y Hahu type optical cable connecting box
10/14/1998CN1195934A Method and apparatus for transmitting wavelength division multiplexed (WDM) signal to reduce effects of stimulated brillouin scattering (SBS)
10/14/1998CN1195779A Soliton regenerator of very high data rate
10/13/1998US5822474 Optical branching apparatus and transmission line setting method therefor
10/13/1998US5822112 Control apparatus for optical amplifier
10/13/1998US5822104 Digital optical receiving apparatus
10/13/1998US5822103 Signal generation using optical pulses
10/13/1998US5822102 Passive optical network employing upconverted 16-cap signals
10/13/1998US5822101 Structure of a light input/output section of a portable infrared data communication terminal
10/13/1998US5822100 For compensating for polarization mode dispersion in an optical data signal
10/13/1998US5822099 Light communication system
10/13/1998US5822096 Optoelectronic apparatus
10/13/1998US5822095 Optical add-drop multiplexer
10/13/1998US5822094 Self-stimulation signal detection in an optical transmission system
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