| 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) |
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| 06/02/2009 | CA2334132C Method and apparatus for automatically identifying system faults in an optical communications system from repeater loop gain signatures |
| 05/28/2009 | WO2009067341A1 Raman cancellation and management in catv transport and distribution via rf spectrum inversion |
| 05/28/2009 | WO2009066690A1 Optical burst signal receiver |
| 05/28/2009 | WO2009065364A1 A method and device and communication system for measuring optical power |
| 05/28/2009 | WO2009065341A1 An optical network terminal and optical line terminal |
| 05/28/2009 | WO2009065314A1 An optical modulation system and method |
| 05/28/2009 | WO2009065281A1 A method for transparent transmitting 10ge ethernet signal through the optical transport network |
| 05/28/2009 | WO2009065274A1 An automatically switched optical network and method for data transmission in the network |
| 05/28/2009 | WO2009065186A1 Data stream upgrade apparatus and method |
| 05/28/2009 | WO2009048821A3 Downhole optical communication system and method |
| 05/28/2009 | US20090138709 Optical transceiver with vendor authentication |
| 05/28/2009 | US20090136241 Optical msk data format |
| 05/28/2009 | US20090136240 Balanced Phase-Shaped Binary Transmission In Optical Communications |
| 05/28/2009 | US20090136239 Optical Signal Transmission Control Apparatus and Optical Signal Transmission Control Method |
| 05/28/2009 | US20090136238 Security over an optical fiber link |
| 05/28/2009 | US20090136237 Coupling structure for optical fibres and process for making it |
| 05/28/2009 | US20090136236 Optically Coupling Components Of A Transceiver |
| 05/28/2009 | US20090136234 Transceiver module sleep mode |
| 05/28/2009 | US20090136233 Optical transmission system and optical node |
| 05/28/2009 | US20090136232 Infrared communication apparatus and infrared communication method |
| 05/28/2009 | US20090136231 Remote controlling system and gateway apparatus for controlling electronic appliances within space |
| 05/28/2009 | US20090136229 Method and System for Transmitting Information in an Optical Communication System Using Distributed Amplification |
| 05/28/2009 | US20090136175 Non-contact connector |
| 05/28/2009 | US20090135868 Optical transmitter able to resume APC operation automatically |
| 05/28/2009 | US20090135866 Optical transmission circuit |
| 05/27/2009 | EP2063563A2 Optical transmission system and optical node |
| 05/27/2009 | EP2063555A1 Phase error estimator, coherent receiver and phase error estimating method |
| 05/27/2009 | EP2063300A1 Very-high quality channel for multi-channel optical revolving joints |
| 05/27/2009 | EP2062382A2 Radio over optical fiber cable system with transponder diversity |
| 05/27/2009 | EP2062381A2 Optical transmission using semiconductor optical amplifier (soa) |
| 05/27/2009 | EP2062076A1 Method and system for grating taps for monitoring a dwdm transmitter array integrated on a plc platform |
| 05/27/2009 | EP1741208A4 Dynamic optical tag |
| 05/27/2009 | EP1665589B1 Optical signal regenerator for high bit-rate transmission systems |
| 05/27/2009 | EP1405114B1 Dispersion and dispersion slope compensating optical fiber |
| 05/27/2009 | CN201248043Y 光网络基站 Optical network base stations |
| 05/27/2009 | CN201248042Y Apparatus for measuring optical fiber transceiver oscillating movement |
| 05/27/2009 | CN101444019A Optical bus |
| 05/27/2009 | CN101444018A 信号质量检测器 Signal quality detector |
| 05/27/2009 | CN101444017A Passive optical network based on reflective semiconductor optical amplifier |
| 05/27/2009 | CN101442765A Method and apparatus for implementing link connectivity detection |
| 05/27/2009 | CN101442691A Optical cable monitoring system based on passive optical network system |
| 05/27/2009 | CN101442438A Method for managing terminal equipment of access system, local terminal equipment and access system |
| 05/27/2009 | CN101442426A Method for configuring optical fiber connection data of WDM business |
| 05/27/2009 | CN101442385A Test device of digital communication error rate |
| 05/27/2009 | CN101442376A Optical transmission system and optical node |
| 05/27/2009 | CN101442366A Light modulation system and method |
| 05/27/2009 | CN101442365A Phase deviation estimator, coherent receiver and phase deviation estimation method |
| 05/27/2009 | CN101442364A Light coherent receiver, frequency difference estimation apparatus and method for light coherent receiver |
| 05/27/2009 | CN101442363A Method and apparatus for revealing light path design graph |
| 05/27/2009 | CN101442362A Method and apparatus for measuring optical power |
| 05/27/2009 | CN101441070A Optical fiber length measuring, communication apparatus and communication system |
| 05/27/2009 | CN100493013C System and method for retrieving computed paths from a path computation element using a path key |
| 05/27/2009 | CN100492958C Device of line attenuation self adaption and path equilibrium automatic adjustment of light interleave multiplexer |
| 05/27/2009 | CN100492957C Optical signal converting apparatus, optical communication network and usage thereof |
| 05/27/2009 | CN100492940C Optical receiving interface of optical channel inspection module |
| 05/27/2009 | CN100492420C Optical payment emitter |
| 05/27/2009 | CN100492077C Optical signal processing device, information recording/reproducing apparatus and information recording/reproducing system |
| 05/27/2009 | CN100492073C Wave-division multiplexing transmission path and dispersion compensation optical fiber |
| 05/26/2009 | US7539803 Bi-directional interface for low data rate application |
| 05/26/2009 | US7539424 Burst mode optical receiver for maintaining constant signal amplitude |
| 05/26/2009 | US7539423 Loss of signal detection and programmable behavior after error detection |
| 05/26/2009 | US7539422 Quantum optical transmission device |
| 05/26/2009 | US7539421 Self-contained secure videoconferencing console |
| 05/26/2009 | US7539420 Network comprising converters between electrical and optical signals |
| 05/26/2009 | US7539419 Optical transmission system for radio access and high frequency optical transmitter |
| 05/26/2009 | US7539418 Integrated ring modulator array WDM transceiver |
| 05/26/2009 | US7539417 Optical transmission system |
| 05/26/2009 | US7539416 Optical network terminal and wavelength division multiplexing based optical network having the same |
| 05/26/2009 | US7539415 Optical packet communication system using labeling of wavelength-offset polarization-division multiplexing |
| 05/26/2009 | US7539413 Observation apparatus and observation system |
| 05/26/2009 | US7539308 Quantum steganography |
| 05/26/2009 | US7539126 Ranging and round trip delay timing adjustment in a multi-point to point bidirectional communication system |
| 05/26/2009 | US7538937 Optical amplifier |
| 05/26/2009 | US7538935 All-optical, continuously tunable, pulse delay generator using wavelength conversion and dispersion |
| 05/26/2009 | US7537397 Optical-isolation apparatus of optical-fiber connector |
| 05/26/2009 | CA2479299C Optically powered and controlled optical switch |
| 05/26/2009 | CA2441934C Reconfiguration optical add-drop multiplexers |
| 05/22/2009 | WO2009064478A2 Photonic based cross-correlation homodyne detection with low phase noise |
| 05/22/2009 | WO2009064393A2 Method of producing a highly permeable stable rf wavefront suitable as a data carrier |
| 05/22/2009 | WO2009062441A1 Method and apparatus for the passive optical network channel protection switch |
| 05/22/2009 | WO2009062357A1 System and method for data synchronization in passive optical networks |
| 05/22/2009 | WO2009062350A1 A linear protection method of the optical network |
| 05/22/2009 | WO2009062237A1 In-band osnr monitor with pmd insensitivity |
| 05/22/2009 | WO2009038662A3 Monolithic dqpsk receiver |
| 05/21/2009 | US20090130987 Probe signalling |
| 05/21/2009 | US20090129789 Method and Apparatus for Extracting Clock Signal From Optical Signal |
| 05/21/2009 | US20090129788 Optical Receiver For Receiving A Signal With M-Valued Quadrature Amplitude Modulation With Differential Phase Coding And Application Of Same |
| 05/21/2009 | US20090129787 Optical coherent receiver, frequency offset estimating apparatus and method for optical coherent receiver |
| 05/21/2009 | US20090129786 Coupling of optical interconnect with electrical device |
| 05/21/2009 | US20090129785 Optical amplifying device and optical transmission system |
| 05/21/2009 | US20090129784 Scanning method and system for a multiple light beam system |
| 05/21/2009 | US20090129782 Building illumination apparatus with integrated communications, security and energy management |
| 05/21/2009 | US20090129781 Optical communication apparatus, optical communication method, and optical communication system |
| 05/21/2009 | US20090129778 Raman cancellation and management in catv transport and distribution via rf spectrum inversion |
| 05/21/2009 | US20090129777 Systems and methods for distance-proof n-pass auto negotiation for gigabit ethernet |
| 05/21/2009 | US20090129774 Distributed Terminal Optical Transmission System |
| 05/21/2009 | US20090129773 Method and apparatus for isolating a location of a fault in a passive optical network |
| 05/21/2009 | US20090129771 Design method for wdm optical networks including alternate routes for fault recovery |
| 05/21/2009 | US20090129770 Light transmission device and method of setting light input break detection threshold value |
| 05/21/2009 | US20090128891 Optical fiber amplification system |