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)
09/2005
09/28/2005EP1580583A1 Controlling apparatus and controlling method for spatial optical switch
09/28/2005EP1579618A2 A multi-input variable gain amplifier
09/28/2005EP1579607A2 Optical transceiver module with improved ddic and methods of use
09/28/2005EP1579606A2 Transmitter and method using half rate data streams for generating full rate modulation on an optical signal
09/28/2005EP1579605A2 Method and apparatus for maintaining optical alignment for free-space optical communication
09/28/2005EP1472644A4 Laser temperature performance compensation
09/28/2005EP0897624B1 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
09/28/2005CN2730035Y Small single-fibre two-way optical transmit-receive module
09/28/2005CN2730034Y Small plug-socket optical transmit-receive module
09/28/2005CN2729759Y Light amplifier for reducing leakage of pumping
09/28/2005CN1675862A Method and apparatus for performing system monitoring in a terminal independent interface located between a terrestrial optical terminal and an undersea optical transmission path
09/28/2005CN1674514A Controller local area network (LAN) bus communication hub based on optical fibre dielectric communication
09/28/2005CN1674481A Wavelength division multiplexing optical transmission system and wavelength dispersion compensation unit
09/28/2005CN1674475A Dispersion compensating method and dispersion compensating apparatus
09/28/2005CN1674474A Optical transmission apparatus and control method therefor
09/28/2005CN1674473A A optical transmitting system and optical transmitting apparatus thereof
09/28/2005CN1674472A Co-wavelength one fibre bidirectional Ether optical transceiver
09/28/2005CN1674471A Control method and system used for dispatching multiclass business in passive optical network
09/28/2005CN1674469A Multi-optical port optical wavelength converting unit
09/28/2005CN1221092C 光通信系统 The optical communication system
09/28/2005CN1221091C Bidirectional optical communication equipment device and bidirectional optical communication apparatus
09/28/2005CN1221090C Two-way optical communication apapratus capable of automatically realizing main-backup change
09/28/2005CN1221089C Method of increasing transmitting laser dispersing restricted distance in optical fiber transmission system
09/28/2005CN1220906C Light modulation device
09/28/2005CN1220899C Micromechanical optical switch made of metal material
09/28/2005CN1220897C Variable light delay line and usage for the same
09/27/2005US6950972 Multi-purpose BER tester (MPBERT) for very high RZ and NRZ signals
09/27/2005US6950635 Vehicular communication apparatus
09/27/2005US6950612 Optical signal generating circuit and optical transmission line
09/27/2005US6950611 In-line polarization monitoring and control in lightwave communication systems
09/27/2005US6950610 Optical communication interface module for universal serial bus
09/27/2005US6950452 Semiconductor laser module and method for simultaneously reducing relative intensity noise (RIN) and stimulated brillouin scattering (SBS)
09/27/2005US6950392 Fiber optic synchronous digital hierarchy telecommunication network provided with a protection system shared on the network
09/27/2005US6950232 Gain clamped thulium-doped fiber amplification
09/27/2005US6950230 Pump light source for Raman amplifier and Raman amplifier using the same
09/27/2005US6950222 Apparatus and method for optical modulation
09/22/2005WO2005089010A1 Optically controlled optical-path-switching-type data distribution apparatus and distribution method
09/22/2005WO2005088898A1 Secure data communication apparatus and method
09/22/2005WO2005088877A1 Optical transmission device and optical transmission system
09/22/2005WO2005088876A1 Optical transmission system, optical transmission device and optical reception device of optical transmission system
09/22/2005WO2005088841A1 System and method for subcarrier modulation as supervisory channel
09/22/2005WO2005088462A1 Hierarchical and byte-configurable memory in an optical transceiver
09/22/2005WO2005088371A1 High repetition rate, linear, true time optical delay line
09/22/2005WO2005086780A2 Cotdr arrangement with swept frequency pulse generator for an optical transmission system
09/22/2005WO2005086779A2 Method and apparatus for obtaining status information concerning an in-service optical transmission line
09/22/2005WO2005086585A2 Retromodulation-based data communication
09/22/2005WO2005043317A3 System and method for adjusting soft decision thresholds in a soft-decision error correction system
09/22/2005WO2005008905A3 Modular dispersion compensator
09/22/2005US20050208976 Multiple antenna system
09/22/2005US20050207761 Driving method of optical modulator, and optical transmitter and optical transmission system using same
09/22/2005US20050207760 Method and system for communicating a clock signal over an optical link
09/22/2005US20050207759 Optical duo-binary transmission apparatus using polarization modulator
09/22/2005US20050207758 Optical wireless communications
09/22/2005US20050207757 Method of wavelength conversion and wavelength converter
09/22/2005US20050207756 Optical network system and optical coupling apparatus
09/22/2005US20050207754 Terminal apparatus and controlling method for optical output power
09/22/2005US20050207753 Optical protection apparatus
09/22/2005US20050207698 Signal transmission system
09/22/2005US20050207696 Compact, cost-effective optical-electrical-optical (OEO) converter for an optical transmission network
09/22/2005US20050207694 Fiber optic circuit board link
09/22/2005US20050207440 Data transmissions in communication networks using multiple tokens
09/22/2005US20050207427 Token-controlled data transmissions in communication networks
09/22/2005US20050207107 Electrical-optical signal conversion for automated storage systems
09/22/2005US20050207009 Nonreciprocal optical element with independent control of transmission opposite directions
09/22/2005US20050206999 Optical attenuator element, and variable optical equalizer and optical amplifier that use this optical attenuator element
09/22/2005US20050206998 Module for amplifying signal light with remote excitation-light and optical-fiber communication system including the same
09/22/2005US20050205957 Integrated VCSELs on traditional VLSI packaging
09/22/2005US20050205760 Method and apparatus for protecting optical receivers from overload optical signals
09/22/2005US20050205759 Dynamic control of photodiode bias voltage
09/22/2005US20050205756 Optical wireless communications
09/22/2005DE102004008393A1 Optic fiber amplifier e.g. erbium-doped fiber amplifier, for regional network, has feed forward arrangement with time delay unit that compensates delay due to changes in number of active channels at input of one of two amplifier stages
09/22/2005CA2554926A1 Optically controlled optical-path-switching-type data distribution apparatus and distribution method
09/21/2005EP1578050A2 Data transmissions in communication networks using multiple tokens
09/21/2005EP1578048A2 Token-controlled data transmissions in communication networks
09/21/2005EP1578047A1 Apparatus and method for amplifying an optical signal and optical transmission system
09/21/2005EP1578041A1 Optical duo-binary transmission apparatus using polarization modulator
09/21/2005EP1578040A1 Method and system for generating CS-RZ pulses showing narrow width of bit duration
09/21/2005EP1578039A1 Device and method for real-time optical network monitoring
09/21/2005EP1578038A1 Device and method for real-time optical network monitoring
09/21/2005EP1578037A1 Fiber optic circuit board link
09/21/2005EP1577704A1 Light source in optical transmission system, waveform shaper, optical pulse train generator, and optical reproduction system
09/21/2005EP1577688A1 Chromatic dispersion-compensating optical fibre in the S-band using a higher order mode
09/21/2005EP1576747A1 Optical transmission system using an optical phase conjugation device
09/21/2005EP1576746A1 An optical communication system for wireless radio signals
09/21/2005EP1488561A4 Reservation-based mac and optical network
09/21/2005EP1004174B1 Optical transmitter system and method
09/21/2005EP0951761A4 Signal transmitter with automatic output control
09/21/2005CN2727853Y Wireless input device with built-in card reader
09/21/2005CN1672351A Method and apparatus for transferring WDM signal between different WDM optical communication systems in optically transparent manner
09/21/2005CN1671118A Data transmissions in communication networks using multiple tokens
09/21/2005CN1671116A Token-controlled data transmissions in communication networks
09/21/2005CN1671091A Method and apparatus for transmitting monitoring information in WDM system
09/21/2005CN1671085A Method and device for detecting the good and bad of optical transceiver structure
09/21/2005CN1671084A Optical transmitter and receiver with embedded error code test function and method for implementing end-to-end error code test
09/21/2005CN1671083A Extracting structure of optical transceiver assembly
09/21/2005CN1671082A Unidirectional infrared communication method and system
09/21/2005CN1670792A Light emitting element driving device and portable apparatus equipped with light emitting elements
09/21/2005CN1670568A Optical attenuator element, and variable optical equalizer and optical amplifier
09/21/2005CN1670557A Optical power monitoring apparatus, optical power monitoring method, and light receiving device
09/21/2005CN1670556A Electrooptical light guide optical switching arrangement capable of increasing extinction ratio
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