Patents
Patents for H04J 14 - Optical multiplex systems (27,009)
11/2004
11/04/2004US20040218855 Systems and devices for dynamic processing of optical signals
11/04/2004US20040218852 Method and apparatus for interleaving and switching an optical beam a semiconductor substrate
11/04/2004US20040218688 Ultra-wideband communication through a power grid
11/04/2004US20040218526 Bi-directional wavelength division multiplexing self-healing optical ring network
11/04/2004US20040218258 Method and apparatus for controlling power transients in an optical communication system
11/04/2004US20040218256 Optical Amplifier
11/03/2004EP1473962A2 System and method for WDM communication with interleaving of optical signals for efficient wavelenth utilization
11/03/2004EP1473960A2 Bi-directional wavelength division multiplexing self-healing optical ring network
11/03/2004EP1473857A1 Apparatus and method for managing dispersion within an optical add/drop module
11/03/2004EP1473855A1 Method and apparatus for Q-factor monitoring using forward error correction coding
11/03/2004EP1472902A1 Apparatus, system and method for optical packet switching using frequency header
11/03/2004CN2653792Y Full light wave long route cross module
11/03/2004CN2653540Y Electric control adjustable light attenuator
11/03/2004CN1543720A 光放大器 Optical amplifier
11/03/2004CN1543260A System and method for WDM communication with interleaving of optical signals for efficient wavelength utilization
11/03/2004CN1543093A Apparatus and method for managing dispersion within an optical add/drop module
11/03/2004CN1543071A Multichannel photocoupler
11/03/2004CN1542481A Bi-directional optical cross-connect device
11/03/2004CN1542478A Device for increasing signal-to-noise ratio of dense wave division multiplex multiple wavelength light source
11/03/2004CN1174569C Communication using spread spectrum methods over optical fibers
11/02/2004US6813425 Fiber optic cable for increased transmission capacity and wavelength division multiplexing optical transmission system using the same
11/02/2004US6813413 Method and a system for protecting data transmitted on an optical ring formed of a single optical fiber
11/02/2004US6813408 Methods for performing in-service upgrades of optical wavelength cross connects
11/02/2004US6813398 Tunable electrooptic add-drop filter apparatus and method
11/02/2004CA2335498C Segmented complex fiber gratings
10/2004
10/28/2004WO2004093352A1 Optical transmission device
10/28/2004WO2004092810A1 Optical pulse compressor and optical function generator, optical pulse compressing method and optical function generating method
10/28/2004WO2004092776A2 Method and system for use in optical code division multiple access
10/28/2004WO2004079401A3 Optical time division multiplexing
10/28/2004US20040214522 Ultra-wideband communication through a wire medium
10/28/2004US20040213581 Optical transmission system
10/28/2004US20040213580 Transmitter and a signal generator in optical transmission systems
10/28/2004US20040213577 Optical transmission line and optical transmission system
10/28/2004US20040213575 Optical add drop multiplexer system
10/28/2004US20040213574 Wavelength division multiplexing - passive optical network system
10/28/2004US20040213572 Optical ring network for burst data communication
10/28/2004US20040213571 Time division multiplex and wavelength division multiplex optical switching node
10/28/2004US20040213569 Transmission capacity expanding method and optical transmission terminal
10/28/2004US20040213566 Wavelength-division multiplex communication system and apparatus
10/28/2004US20040213565 Method and apparatus for optical signal and noise analysis using pulse amplitude histogram
10/28/2004US20040213564 Optical network
10/28/2004US20040213508 Optical switch and gate apparatus and method
10/28/2004US20040213506 All optical chopping for shaping and reshaping apparatus and method
10/28/2004US20040213501 Using intensity and wavelength division multiplexing for fiber Bragg grating sensor system
10/28/2004US20040213286 Fiber to the home broadband home unit
10/28/2004US20040213229 Optical layer multicasting using a single sub-carrier header and a multicast switch with active header insertion via light circulation
10/28/2004US20040212876 Wavelength-tunable amplified optical splitter
10/28/2004US20040212864 Apparatus comprising a rotatable optical element
10/28/2004DE10308306A1 Verfahren und Anordnung zur Übertragung von Working-Signalen und Protection-Signalen über optische Datennetze Method and apparatus for transmitting working signals and protection signals over optical data networks
10/28/2004CA2521103A1 Method and system for use in optical code division multiple access
10/27/2004EP1471670A2 Optical transmission system including an add/drop apparatus with a plurality of individually selectable filters
10/27/2004EP1471669A2 Optical transmission system
10/27/2004EP1269672B1 Multiple input waveguide grating router for broadcast and multicast services
10/27/2004CN1541461A Optical system and method in optical system
10/27/2004CN1540907A Structure of optical switching node based on sharing convertor of adjustable wavelength
10/27/2004CN1540906A Multiple wavelength ultra continuous light sources
10/27/2004CN1540905A Device for automatic protective switching optical interface
10/27/2004CN1540904A Wavelength selection switcher
10/27/2004CN1540427A Digital optical switch in low cross talk
10/27/2004CN1540381A Optical receiver possessing filter its fabricating method and optical send receive module
10/27/2004CN1173511C Optical packet switching technique in multi-wavelength mark mode
10/27/2004CN1173221C Wavelength selective device and switch and method thereby
10/26/2004US6810215 Optical repeater converting wavelength and bit rate between networks
10/26/2004US6810211 Can maintain performance comparable to that of current optical routers, with a reduced number of components as compared to current optical routers
10/26/2004US6810171 Dispersion-compensated optical wavelength router
10/26/2004US6810046 Method of communicating data in communication systems
10/26/2004US6809858 Optical transmission systems and optical amplifiers for use therein
10/26/2004US6809846 Optical switch and optical network
10/26/2004CA2351268C Raman amplifier with gain enhancement from optical filtering
10/21/2004WO2004091121A1 Optical amplifier and optical communication system
10/21/2004US20040208646 System and method for multi-level phase modulated communication
10/21/2004US20040208645 Method and apparatus for optical transmission of wavelength-encoded modulation formats
10/21/2004US20040208644 Sub-carrier generation for optical communication
10/21/2004US20040208640 Distributed coding network
10/21/2004US20040208637 Multi-channel optical transmitter incorporating a tunable optical signal source and method for transmitting a multi-channel optical signal
10/21/2004US20040208636 Phase tracking multichannel link
10/21/2004US20040208625 Irregular two-dimensional wide-coverage network
10/21/2004US20040208624 Fast frequency hopping spread spectrum for code division multiple access communications networks (FFH-CDMA)
10/21/2004US20040208623 Unequal pulse spacer
10/21/2004US20040208605 Method and apparatus for chromatic dispersion compensation
10/21/2004US20040208587 Method of optical network routing
10/21/2004US20040208585 Systems and methods for minimizing signal power and providing reduced Raman pump depletion for WDM optical system
10/21/2004US20040208584 Reconfigurable optical add-drop multiplexer using an analog mirror device
10/21/2004US20040208583 Single sideband dense wavelength division multiplexed optical transmission scheme
10/21/2004US20040208582 Wavelength division multiplexing receiver for wavelength tracking
10/21/2004US20040208581 Optical add-drop multiplexer
10/21/2004US20040208580 Re-configurable optical add-drop multiplexer
10/21/2004US20040208577 Methods for in-service wavelength upgrade and system performance optimization in WDM optical networks
10/21/2004US20040208576 Passive add/drop amplifier for optical networks and method
10/21/2004US20040208573 Interconnecting nodes in an optical communication system
10/21/2004US20040208572 WDM optical transmission system with passive hub
10/21/2004US20040208571 All optical cross routing using decoding systems for optical encoded data symbols
10/21/2004US20040208569 System adopting wavelength division multiplexing and method of operating the system
10/21/2004US20040208567 Optical wavelength division multiplexing transmission system
10/21/2004US20040208566 Coarse WDM system of large capacity with un-cooled lasers
10/21/2004US20040208565 Decorrelation of WDM signals
10/21/2004US20040208562 Coarse wavelength division multiplexing system
10/21/2004US20040208561 Method and system for control signaling in an open ring optical network
10/21/2004US20040208560 System and method for assigning traffic to wavelengths in optical networks
10/21/2004US20040208559 Wavelength and path assignment in wavelength division multiplexed ring networks