| 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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| 02/10/2009 | US7489880 Apparatus and method for measuring the dispersion of a fiber span |
| 02/10/2009 | US7489879 Laser device for optical data transmission |
| 02/10/2009 | US7489878 Snooping countermeasures for system indicators |
| 02/10/2009 | US7489877 Optical transmission module |
| 02/10/2009 | US7489876 Optical transmission system having noise-elimination function |
| 02/10/2009 | US7489875 System and method for multiple bit optical data transmission in memory systems |
| 02/10/2009 | US7489874 Method and apparatus for demodulation of optical differential phase shift keyed signals |
| 02/10/2009 | US7489873 Optical signal retiming, reshaping, and reamplifying (3R) regeneration system having monolithically integrated Mach Zehnder interferometer and self-pulsating laser diode |
| 02/10/2009 | US7489872 Optical fiber system and method for carrying both CATV and Ethernet signals |
| 02/10/2009 | US7489871 Light detection apparatus and free space optics communication apparatus |
| 02/10/2009 | US7489870 Optical antenna with optical reference |
| 02/10/2009 | US7489869 Passive optical network system and ranging system thereof |
| 02/10/2009 | US7489867 VoIP service over an ethernet network carried by a DWDM optical supervisory channel |
| 02/10/2009 | US7489865 Integrated optical communication and range finding system and applications thereof |
| 02/10/2009 | US7489864 Method and system for providing controlled impairments to an optical transport system |
| 02/10/2009 | US7489838 Optical transmitter |
| 02/10/2009 | US7489624 Scanning by remotes in multipoint-to-point communication using orthogonal frequency division multiplexing |
| 02/10/2009 | US7489623 Control modulation in multipoint-to-point communication using orthogonal frequency division multiplexing |
| 02/10/2009 | US7489440 Optical spectral filtering and dispersion compensation using semiconductor optical amplifiers |
| 02/10/2009 | US7489438 Dielectric coating for an optical repeater pressure vessel |
| 02/10/2009 | US7488925 Light control apparatus having a device for controlling the input signal light of an optical transmission path |
| 02/10/2009 | CA2398531C Optical performance monitoring for dwdm networks |
| 02/05/2009 | WO2009018140A1 Systems and methods for broadband transmission of signals |
| 02/05/2009 | WO2009017469A1 Method and apparatus of detecting abnormal behavior in a passive optical network (pon) |
| 02/05/2009 | WO2009017335A1 Tunable laser module based on polymer waveguides |
| 02/05/2009 | WO2009017302A1 Optical signal detector |
| 02/05/2009 | WO2009016695A1 Optical amplifier, and optical transmission system including the same |
| 02/05/2009 | WO2009016360A1 An optical filter |
| 02/05/2009 | US20090034989 Light signal processing device and light signal storing device |
| 02/05/2009 | US20090034987 Wideband electric signal mixer and optical transmitter using the same |
| 02/05/2009 | US20090034986 Optical communication device |
| 02/05/2009 | US20090034985 Optical interconnect |
| 02/05/2009 | US20090034984 Sonet method and system having network service access point addressing |
| 02/05/2009 | US20090034982 Integrated laser and photodetector chip for an optical subassembly |
| 02/05/2009 | US20090034981 Optical transceiver wtih equalizing function and a method to setup the optical transceiver |
| 02/05/2009 | US20090034980 Impedance matching circuit with simultaneous shielding of parasitic effects for transceiver modules |
| 02/05/2009 | US20090034979 Systems and methods for broadband transmission of signals |
| 02/05/2009 | US20090034973 Passive optical network system and optical line terminal |
| 02/05/2009 | US20090034972 Optical Path Routing in an Optical Communications Network |
| 02/05/2009 | US20090034967 Phase monitor apparatus, phase control apparatus and methods thereof for optical dqpsk receiver |
| 02/05/2009 | US20090034966 Optical Signal Monitoring Apparatus and Method |
| 02/05/2009 | US20090034963 Method and an apparatus to provide optical equipment protection |
| 02/05/2009 | US20090033944 Coded polarization-dependent interferometry |
| 02/05/2009 | US20090033757 Method and apparatus for determining the position of a moving object, by using visible light communication |
| 02/05/2009 | DE112007000663T5 Verfahren und Vorrichtung zum Bestimmen des dynamsichen Bereichs einer optischen Verbindung in einem HFC-Netzwerk Method and apparatus for determining the dynamsichen area of an optical link in an HFC network |
| 02/05/2009 | CA2694845A1 An optical filter |
| 02/04/2009 | EP2020772A1 Estimation of the quality of a transmission in a photonic system |
| 02/04/2009 | EP2020767A1 Optical relay device and optical relay transmission system |
| 02/04/2009 | EP2020102A1 Method and arrangement for transmission of data with at least two radiation sources |
| 02/04/2009 | EP2020048A2 Surface plasmon signal transmission |
| 02/04/2009 | CN201191852Y Optical fiber access system of multi-service optical fiber transceivers |
| 02/04/2009 | CN201191851Y Optical fiber access system for optical modem |
| 02/04/2009 | CN201191838Y Analogue instrument protecting dedicated transmission channel |
| 02/04/2009 | CN201191837Y Optical modem |
| 02/04/2009 | CN201191836Y Full-optical self-adapting signal equalizer |
| 02/04/2009 | CN201191835Y Indoor light receiver |
| 02/04/2009 | CN201191834Y Infrared wireless earphone for computer |
| 02/04/2009 | CN101361002A Device and method for converting digital signal with high-voltage swinging to digital signal with low-voltage swinging |
| 02/04/2009 | CN101360984A Light beam path monitoring device and light beam path monitoring method |
| 02/04/2009 | CN101360346A Passive optical network system and optical line terminal |
| 02/04/2009 | CN101360061A Method and apparatus implementing official telephone and customer transparent channel route |
| 02/04/2009 | CN101360008A Method for transmitting alarm on transmission plane when alarm generated by service |
| 02/04/2009 | CN101359965A Method and apparatus optimizing determination level of optical receiver |
| 02/04/2009 | CN101359964A Frequency bias monitoring apparatus and light coherent receiver |
| 02/04/2009 | CN101359963A Dual Ethernet optical fiber transceiver, transceiving method and system |
| 02/04/2009 | CN101359962A Filter feedback multiplexed millimeter wave subcarrier optical controlled microwave beam forming network |
| 02/04/2009 | CN101359961A Optical code converter based on Bragg grating of super-structure optical fiber |
| 02/04/2009 | CN101359960A Very high speed infrared data broadcast technique |
| 02/04/2009 | CN101359959A Information acquisition method for fault locating analysis |
| 02/04/2009 | CN101359425A Receiver and receiving method |
| 02/04/2009 | CN101358846A Method and apparatus for determining the position of a moving object, by using visible light communication |
| 02/04/2009 | CN100459720C Expanded system of transmission equipment |
| 02/04/2009 | CN100459619C Infrared assembly for handset |
| 02/04/2009 | CN100459478C Multi-channel optical wavelength locking device and method in optical communication system |
| 02/04/2009 | CN100459477C Optical add and drop multiplexer supporting port-wavelength designation |
| 02/04/2009 | CN100459459C Multi-code type adjustable transmitter capable of phase automatic calibration |
| 02/04/2009 | CN100458861C Method of transmitting control command from one transmitting element to one measuring probe |
| 02/04/2009 | CN100458383C Method for collecting snowslide signal of APD single photon detector |
| 02/03/2009 | US7486898 Receiver for PMD mitigation by polarization scrambling |
| 02/03/2009 | US7486897 Polarization duobinary optical transmitter |
| 02/03/2009 | US7486896 Optical clock recovery |
| 02/03/2009 | US7486895 Effective control algorithm for optical polarization mode dispersion compensators |
| 02/03/2009 | US7486894 Transceiver module and integrated circuit with dual eye openers |
| 02/03/2009 | US7486893 Dynamic optical interconnect system reference signal formation |
| 02/03/2009 | US7486892 Multiport optical amplifier with narrowcast power equalization |
| 02/03/2009 | US7486889 Transceiver test module employing an optical wrap |
| 02/03/2009 | US7486888 Method of identifying infrared transmission head function |
| 02/03/2009 | US7486742 Optimization of ultra-wideband communication through a wire medium |
| 02/03/2009 | US7486623 Method and system for surveilling a telecommunications network link |
| 02/03/2009 | US7486437 Apparatus and method for optical amplification in indirect-gap semiconductors |
| 02/03/2009 | US7486186 FSOC/radio intrusion detection system |
| 02/03/2009 | CA2612703A1 Automated diagnostics and troubleshooting mechanism for end-users and technicians |
| 02/03/2009 | CA2580269C Error detection and correction for base-band wireless systems |
| 02/03/2009 | CA2417126C Wavelength division multiplex (wdm) optical network |
| 02/03/2009 | CA2409551C Method and apparatus for maintaining a pre-determined ratio of a pilot tone power and a mean optical output power of an optical signal |
| 01/29/2009 | WO2009015204A1 Signaling between elements in an undersea optical communication system |
| 01/29/2009 | WO2009014710A1 Multi-port accumulator for radio-over-fiber (rof) wireless picocellular systems |
| 01/29/2009 | WO2009013795A1 Optical transmission device, wavelength multiplexing optical communication system, and optical transmission method |
| 01/29/2009 | WO2009012728A1 A method, apparatus and system for an optical network unit accessing the network |
| 01/29/2009 | WO2009012715A1 A receiving apparatus and receiving method |