Patents
Patents for H04J 14 - Optical multiplex systems (27,009)
12/2006
12/13/2006CN1290282C Non-uniform light convergence device and divergence device and layered mixing light cross-linking system
12/13/2006CN1289942C Prepn process of NEMS electrically adjustable light attenuator chip
12/12/2006US7149434 System and method for optical communication
12/12/2006US7149431 Self-seeded Fabry-Perot laser device for wavelength division multiplexing system
12/12/2006US7149429 Coarse wavelength division multiplexing system
12/12/2006US7149428 OSNR monitoring method and apparatus using tunable optical bandpass filter and polarization nulling method
12/12/2006US7149427 Cooperating array of micromirror devices for wireless optical communication
12/12/2006US7149426 Optical routers and redundancy
12/12/2006US7149424 Method and device for evaluating and improving the quality of transmission of a telecommunications signal through an optical fiber
12/12/2006US7149387 Double diffraction grating with flat passband output
12/12/2006US7149384 Grating design
12/12/2006CA2352264C Add/drop multiplexing in wdm optical networks
12/07/2006WO2006130130A1 Scheduling method and system for optical burst switched networks
12/07/2006WO2006128254A1 Wdm optical performance monitoring
12/07/2006US20060275038 Methods and apparatus for selective signal amplification
12/07/2006US20060275037 Methods and apparatus for multiple signal amplification
12/07/2006US20060275036 Method and apparatus for automatically upgrading passive optical networks (PONs)
12/07/2006US20060275034 Fully protected broadcast and select all optical network
12/07/2006US20060274994 Optical device
12/07/2006DE102006025122A1 Vorrichtung zur Messung einer optischen Charakteristik An apparatus for measuring an optical characteristic
12/06/2006CN1874291A Optical node and method of supporting network structure of superposition model, and peer-to-peer model in optical Internet
12/06/2006CN1874199A Optical transmission equipment and integrated circuit
12/06/2006CN1874197A Wavelength division multiplex method of optical fiber access for XDSL signal in multiplepath
12/06/2006CN1874195A Multiplexing / demultiplexing ROADM based on TFF
12/06/2006CN1874194A Optical CDMA access metwork with shared light source
12/06/2006CN1288869C A WDM optical transmission system with automatic link gain adjustment and method thereof
12/06/2006CN1288868C Integrated dynamic light add and drop multiplexer module based on filter wave light switch unit
12/06/2006CN1288464C Bulk optical interferometer
12/05/2006US7146107 Method and apparatus for adjusting filter device
12/05/2006US7146104 Method and system for providing a return data path for legacy terminals by using existing electrical waveguides of a structure
12/05/2006US7146103 Optical communications using multiplexed single sideband transmission and heterodyne detection
12/05/2006US7146102 Optical cross-connect device
12/05/2006US7146101 Optical media management channel
12/05/2006US7146099 Method and apparatus for optical signal and noise analysis using pulse amplitude histogram
12/05/2006US7146077 Optical coupler type filter and wavelength stabilizing apparatus of light source using the same
12/05/2006US7146071 Optical transmission system
12/05/2006US7146066 Wavelength division multiplexing optical transmission system
12/05/2006US7145718 Control method of optical fiber amplifier and optical transmission system
12/05/2006US7145717 Optical amplifier
12/05/2006US7145710 Optical processing
12/05/2006US7145704 Optical logic gate based optical router
12/05/2006CA2333436C Optical multiplexer/ demultiplexer
11/2006
11/30/2006WO2006125881A1 Frequency-addressing matrix routing head for light beams
11/30/2006WO2005082035A3 A method and apparatus for optical performance monitoring
11/30/2006US20060269295 Optical double sideband modulation technique with increased spectral efficiency
11/30/2006US20060269294 Optical transmission equipment and integrated circuit
11/30/2006US20060269291 Optical communication system
11/30/2006US20060269289 Communications system
11/30/2006US20060269286 Optical pulse time spreading device
11/30/2006US20060269285 Optical network system and method for supporting upstream signals propagated according to a cable modem protocol
11/30/2006US20060269284 Optical transmission apparatus, continuity testing method therein, and optical transmission system
11/30/2006DE10112805B4 Optisches Übertragungssystem mit verbessertem Signal-zu-Rausch-Verhalten An optical transmission system with an improved signal-to-noise ratio
11/30/2006CA2609723A1 Optical code-routed networks
11/30/2006CA2609159A1 Frequency-addressing matrix routing head for light beams
11/29/2006EP1727304A2 Optical transmission apparatus, continuity testing method therein and optical transmission system
11/29/2006EP1726183A1 Optically controlled optical-path-switching-type data distribution apparatus and distribution method
11/29/2006EP1726112A2 Methods and apparatus for confidentiality protection for fibre channel common transport
11/29/2006EP1488547A4 Systems and methods for active monitoring and management of fiber links
11/29/2006CN2842887Y Multi plexing communication interface circuit
11/29/2006CN1870485A Off-axis wavelength division multiplexer
11/29/2006CN1870471A System and method of suppressing self-excitation in multi-section shared protection based on optical ring network
11/29/2006CN1870470A Two-fibre two-way multi-section shared protection optical fiber ring network
11/29/2006CN1870469A Optical split insertion duplexer based on acousto-optic tunable wave filter
11/29/2006CN1287558C Recovering method for optical transmission circular network wrong connection business
11/29/2006CN1287541C Wavelength division multiplex (WDM) optical network
11/28/2006US7142787 Optical data transmission method and its system, optical transmitter and its method, and optical switcher
11/28/2006US7142785 Light branching/inserting apparatus and light branching apparatus using wavelength selection filter
11/28/2006US7142784 Microprocessor-based optical signal conditioner
11/28/2006US7142783 Method and system for identification of channels in an optical network
11/28/2006US7142782 Noise light elimination method, noise light elimination apparatus and optical transmission system, using stimulated brillouin scattering
11/28/2006US7142750 Optical coincidence system for narrowing the width of output pulses relative to optical signal and control pulses
11/28/2006US7142749 System and method for controlling spectral passband profile
11/28/2006US7142735 Acousto-optic tunable filter controller
11/28/2006US7142347 Method and system for processing photonic systems using semiconductor devices
11/23/2006WO2006124532A2 Method and system for mitigating raman crosstalk in an ethernet passive optical network
11/23/2006WO2006124101A2 Accommodating multiple optical segments in an ethernet passive optical network
11/23/2006WO2006123646A1 Wavelength division multiplexing optical transmitting device and wavelength division multiplexing optical transmitting method
11/23/2006US20060265482 Automatic assignment of addresses to nodes in a network
11/23/2006US20060263090 Low-cost WDM source with an incoherent light injected Fabry-Perot laser diode
11/23/2006US20060263089 Output stage for carrying out wdm message transmission and methods for exchanging full light sources in an output stage of this type
11/23/2006US20060263088 Optical packet switching apparatus and methods
11/23/2006US20060263087 Method and system for using a time to live field in a fibre channel switch element
11/23/2006US20060263008 Hitless tunable optical add drop multiplexer with vernier gratings
11/23/2006DE112004001540T5 Erzeugen von Sätzen maßgeschneiderter Laserimpulse Generating sets of customized laser pulses
11/23/2006DE10024238B4 Verfahren zur Qualitäts-und Identitätskontrolle von Wellenlängenkanälen in optischen Übertragungsnetzen A method for quality control and identity of wavelength channels in optical transmission systems
11/22/2006EP1724633A1 Laser light source device, exposure apparatus using this laser light source device, and mask examining device
11/22/2006EP1723740A1 Wdm systems and methods
11/22/2006EP1602188B1 Add-drop device and cross-connect device for wavelength multiplex signals
11/22/2006CN2840526Y Reconfigurating optical add/drop multiplexing device
11/22/2006CN1866809A Optical buffer with adjustable delay time and output wavelength
11/22/2006CN1866808A Multiplex/demultiplex method and apparatus for wavelength-division multiplex system
11/22/2006CN1866807A Optical pulse time spreading device
11/22/2006CN1866795A 光通信系统 The optical communication system
11/22/2006CN1866794A Method and system for determining the performance of a heterogeneous optical transmission system
11/22/2006CN1866647A Double-wavelength series connection distribution feedback laser adapted to coarse wavelength division multiplexing
11/21/2006US7139487 Light burst transmission/reception control system, parent station device used in the same, child station device, and light burst transmission/reception control method
11/21/2006US7139486 Method and apparatus for optical add/drop multiplexing in optical networks
11/21/2006US7139485 Channel balancing of a wavelength division multiplexed optical signal
11/21/2006US7139484 Signal transmission method in WDM transmission system, and WDM terminal, optical add-drop multiplexer node, and network element used in the same system
11/21/2006US7139483 Optical communication system