| Patents for H04J 14 - Optical multiplex systems (27,009) | 
|---|
| 05/27/2008 | US7379677 Method of wavelength conversion and wavelength converter | 
| 05/27/2008 | US7379670 Method and apparatus for chromatic dispersion compensation | 
| 05/27/2008 | US7379669 Method and apparatus for duplex communication in hybrid fiber-radio systems | 
| 05/27/2008 | US7379668 Optical amplification in photonic switched crossconnect systems | 
| 05/27/2008 | CA2438185C Method and apparatus for an optical filter | 
| 05/22/2008 | WO2008058574A1 Provision of alternative communications paths in a communications network | 
| 05/22/2008 | WO2008036205A3 Optical modulator | 
| 05/22/2008 | US20080120552 Device and method for provision of customized system for optical transmission of data | 
| 05/22/2008 | US20080118246 Encoding and decoding architecture and method for pipelining encoded data or pipelining with a look-ahead strategy | 
| 05/22/2008 | US20080118245 Optical node for mesh-type WDM optical network | 
| 05/22/2008 | US20080118244 Resilient packet ring (RPR) network system, RPR node device, redundancy method for the same, program and computer-readable medium | 
| 05/22/2008 | US20080118243 Compact optical multiplexer and demultiplexer | 
| 05/22/2008 | US20080117805 Method and apparatus for cross-talk cancellation in frequency division multiplexed transmission systems | 
| 05/21/2008 | EP1737154B1 Transmission method for ethernet service signal in a wavelength division multiplexing network | 
| 05/21/2008 | EP1588511B1 Output stage for carrying out wdm message transmission and methods for exchanging full light sources in an output stage of this type | 
| 05/21/2008 | EP1518366A4 Transparent flexible concatenation | 
| 05/21/2008 | EP1157493B1 Dwdm catv return system with up-converters to prevent fiber crosstalk | 
| 05/21/2008 | CN201063639Y Light pulse coder/decoder | 
| 05/21/2008 | CN101183913A Method for fine adjustment of dispersion compensation in wavelength division multiplexing optical transmission system | 
| 05/21/2008 | CN100389546C Raman light enlarger | 
| 05/21/2008 | CN100389545C Self-healing wavelength division multiplexing-passive optical network system | 
| 05/20/2008 | US7376356 Optical data transmission system using sub-band multiplexing | 
| 05/20/2008 | US7376355 Optical transmission apparatus and optical transmission system | 
| 05/20/2008 | US7376350 Methods and apparatus for optical network management using pilot tones | 
| 05/20/2008 | US7376349 Analog to digital converter systems and methods | 
| 05/20/2008 | US7376348 Optical communication system | 
| 05/20/2008 | US7376138 Optical communications network | 
| 05/20/2008 | CA2363627C Wavelength-dependent optical signal processing using an angle-to-offset module | 
| 05/20/2008 | CA2342101C Optical amplifiers and optical transmission path | 
| 05/15/2008 | WO2008055529A1 Method and device for hitless tunable optical filtering | 
| 05/15/2008 | WO2008055528A1 Method and device for hitless tunable optical filtering | 
| 05/15/2008 | WO2008055527A1 Method and device for hitless tunable optical filtering | 
| 05/15/2008 | WO2008014374A3 Controlling optical signal transmission to reduce optical signal degradation | 
| 05/15/2008 | WO2006093962A3 Simultaneous spatial and temporal focusing of femtosecond pulses | 
| 05/15/2008 | US20080112706 Optical receiving apparatus and optical communication system using same | 
| 05/15/2008 | US20080112705 Frequency selective mmw source | 
| 05/15/2008 | US20080112704 Methods and apparatus for generating local oscillation signals | 
| 05/15/2008 | US20080112703 Photonic interconnect system | 
| 05/15/2008 | CA2703543A1 Method and device for hitless tunable optical filtering | 
| 05/15/2008 | CA2703538A1 Method and device for hitless tunable optical filtering | 
| 05/15/2008 | CA2703534A1 Method and device for hitless tunable optical filtering | 
| 05/14/2008 | EP1721398B1 Optical add/drop amplification device | 
| 05/14/2008 | CN101180819A Shared high-intensity broadband light source for wavelength-division multiple access passive optical network | 
| 05/14/2008 | CN100388789C System and method for providing integrated communications and broadcasting service | 
| 05/14/2008 | CN100388708C Grouped light channel sharing protection method and system | 
| 05/14/2008 | CN100388707C Method for realizing feedthrough establishment of K words of ring net element of multiplexing segment | 
| 05/14/2008 | CN100388658C Apparatus and method for adjusting mean slope of multi-pumping Raman amplifier gain spectrum | 
| 05/14/2008 | CN100388652C 色散补偿器 Dispersion compensator | 
| 05/13/2008 | US7373087 Adaptive optical transponder | 
| 05/13/2008 | US7373084 Optical network termination device for use in passive optical network based on WDM/SCM scheme | 
| 05/13/2008 | US7373039 Low-ripple optical device | 
| 05/13/2008 | US7373037 Compact wavelength-selective optical crossconnect | 
| 05/13/2008 | US7372854 Communication node system, control node system, and communication system using node systems in ethernet-passive optical network | 
| 05/13/2008 | US7372806 Fault recovery system and method for a communications network | 
| 05/13/2008 | US7372622 Optical transmission system, optical repeater, and optical transmission method | 
| 05/13/2008 | US7372607 Apparatus for reducing drops in a transmission spectrum due to inter-pixel gaps | 
| 05/13/2008 | CA2414257C Multichannel interferometer with phase generated carrier demodulation and quadrature error correction | 
| 05/08/2008 | WO2008054704A2 Ofdm receiving circuit having multiple demodulation paths | 
| 05/08/2008 | WO2008053465A1 Method for finding protected path in mesh networks | 
| 05/08/2008 | WO2007140240A3 Optical communication system and method using optical channels with pair-wise orthogonal relationship | 
| 05/08/2008 | WO2007120708A3 Optical multiplexer and transmitter | 
| 05/08/2008 | WO2007067635A3 Eliminating clock skew by using bidirectional signaling | 
| 05/08/2008 | US20080107428 Optical Transmitter and Optical Communication System | 
| 05/08/2008 | US20080107427 Data transmitter and method of generating none return to zero optical signal with clock component amplification | 
| 05/08/2008 | US20080107425 Optical signal processing apparatus, optical signal transmission system and optical signal processing method | 
| 05/08/2008 | US20080107417 Optical wavelength division multiplexed multiplexer/demultiplexer for an optical printed circuit board and a method of manufacturing the same | 
| 05/08/2008 | US20080107415 System and Method for Discovering Neighboring Nodes | 
| 05/08/2008 | DE102006045134B3 Verfahren zur Ermittlung des optischen Signal-Rausch-Verhältnisses und Empfangseinrichtung für ein optisches Übertragungssystem Method for determining the optical signal-to-noise ratio and receiving device for an optical transmission system | 
| 05/08/2008 | CA2651497A1 Variable spectral phase encoder/decoder based on decomposition of hadamard codes | 
| 05/07/2008 | EP1919105A1 Optical transmitter and optical transmission system | 
| 05/07/2008 | CN201057644Y Channel protection type optical branching device structure | 
| 05/07/2008 | CN101174961A Consumer access interface arrangement of wavelength-division equipment | 
| 05/07/2008 | CN101174904A Mws drift feedback compensator using voa and input power dithering | 
| 05/07/2008 | CN101174073A Crossing polarization modulation type full light wavelength converter | 
| 05/07/2008 | CN100386981C A broad band online fineness compensation arrangement | 
| 05/06/2008 | US7369780 Remodulating channel selectors for WDM optical communication systems | 
| 05/06/2008 | US7369778 Dispersion compensation method and apparatus | 
| 05/06/2008 | US7369777 Method and apparatus for automatically adjusting the optical power directed to a dispersion compensating element | 
| 05/06/2008 | US7369774 Optical frequency controlling device for ultra-dense wavelength-division-multiplexed optical channels | 
| 05/06/2008 | US7369773 Methods and systems for polarization control and polarization mode dispersion compensation for wideband optical signals | 
| 05/06/2008 | US7369772 Optical line terminal arrangement, apparatus and methods | 
| 05/06/2008 | US7369771 Optical network terminator and optical network connection method using it | 
| 05/06/2008 | US7369770 Method of assigning carrier frequencies in an optical transmission network | 
| 05/06/2008 | US7369767 Method of determining a spectral route in an optical telecommunications network | 
| 05/06/2008 | US7369765 Optical network with selective mode switching | 
| 05/06/2008 | US7369587 Temperature control for coarse wavelength division multiplexing systems | 
| 05/06/2008 | US7368700 Optical switch apparatus and optical switching system | 
| 05/02/2008 | WO2008052032A2 Random access structure for optimal cell coverage | 
| 05/02/2008 | WO2008050729A1 Optical space transmission system using visible light and infrared light | 
| 05/02/2008 | WO2008049357A1 A method,system of dada transmission | 
| 05/01/2008 | US20080101797 Method and receiver to increase the spectral efficiency of dpsk modulation format | 
| 05/01/2008 | US20080101793 Network address association recovery | 
| 04/30/2008 | EP1360790B1 Optical transmission systems including optical protection systems, apparatuses, and methods | 
| 04/30/2008 | CN201054739Y Dual-light self-curing protection Ethernet optical switching multi-service integrated multiplexing device | 
| 04/30/2008 | CN101170377A Transmission wave length selection method for color dispersion shift optical fiber dense wave division multiplexing system | 
| 04/30/2008 | CN101170363A An optical differential polarization shift key control system and its signal transmission device and method | 
| 04/30/2008 | CN101169502A Two-dimensional encoder-decoder manufacture method based on sampling grating | 
| 04/30/2008 | CN100385841C Method for grooming of channels in WDM aptical communication systems | 
| 04/29/2008 | US7366426 Optical add/drop multiplexer using tunable filter and method for feedback controlling the tunable filter | 
| 04/29/2008 | US7366417 Delivering multicast services on a wavelength division multiplexed network using a configurable four-port wavelength selective crossbar switch |