| 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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| 04/28/2005 | US20050087747 Optoelectronic semiconductor device and light signal input/output device |
| 04/28/2005 | US20050087688 Infrared radiation receiving circuit, electronic device, and infrared radiation receiving method |
| 04/27/2005 | EP1526665A2 Optical phase modulation |
| 04/27/2005 | EP1526664A2 Optical phase modulation |
| 04/27/2005 | EP1526663A2 Optical phase modulation |
| 04/27/2005 | EP1526662A2 System and method for a supervisory signal modulation scheme using variable optical attenuators |
| 04/27/2005 | EP1525694A2 Methods and apparatus for improved communications networks |
| 04/27/2005 | EP1525684A1 Optical transmission system for transmitting optical signals having different transmission rates |
| 04/27/2005 | EP1525648A1 Multi-stage raman amplifier |
| 04/27/2005 | EP1454438B1 Method for reducing optical carrier of signals circulating on an optical fiber, and device therefor |
| 04/27/2005 | EP1436920B1 Optical transmission system comprising dispersion management system |
| 04/27/2005 | EP1068656A4 NONLINEAR FIBER AMPLIFIERS USED FOR A 1430-1530nm LOW-LOSS WINDOW IN OPTICAL FIBERS |
| 04/27/2005 | CN2696048Y Multifunctional infrared remote controller for selecting song |
| 04/27/2005 | CN1611024A System for polarization mode dispersion compensation |
| 04/27/2005 | CN1611023A System for higher-order dispersion compensation |
| 04/27/2005 | CN1611022A Method for higher-order dispersion compensation |
| 04/27/2005 | CN1611021A Optical communication system manufacturing method |
| 04/27/2005 | CN1610430A Ring downloading and converting apparatus and method for mobile communication terminal |
| 04/27/2005 | CN1610310A Network management system and method for free space optical communication system |
| 04/27/2005 | CN1610286A Equipment structure and operating method for control processing unit in optical network |
| 04/27/2005 | CN1610279A Passive optical network dynamic bandwide distributing apparatus and method |
| 04/27/2005 | CN1610278A Wide band coptical wave detector |
| 04/27/2005 | CN1609693A Optical fibre transmission system with Raman amplification |
| 04/27/2005 | CN1609645A Mixed optical cable with sensing and communication function and producing method thereof |
| 04/27/2005 | CN1609644A Clamping apparatus used for coaxle encapsulated semiconductor laser coupling with automatic identification device |
| 04/27/2005 | CN1609641A Two-dimensional photon crystal power separator |
| 04/27/2005 | CN1199388C Optical fibre single photon routing operating controller |
| 04/27/2005 | CN1199382C Arrangement for supervising and/or controlling bit rate of data pulses |
| 04/27/2005 | CN1199128C Process for controlling the access of data station to mobile data carriers |
| 04/27/2005 | CN1199067C Optocoupler for non-intrinsically safe circuit |
| 04/27/2005 | CN1199066C Method for improving pumping performance of remote pump using filter |
| 04/26/2005 | US6885828 Optical signal receiver and method with decision threshold adjustment based on a total percentage error indicator field of the invention |
| 04/26/2005 | US6885827 High sensitivity, high resolution detection of signals |
| 04/26/2005 | US6885826 Optical transmitter and method for generating a digital optical signal sequence |
| 04/26/2005 | US6885825 Power balanced optical add/drop multiplexer and power balancing methods therefore |
| 04/26/2005 | US6885823 Wavelength multiplexing/demultiplexing unit, wavelength multiplexing/demultiplexing apparatus and wavelength multiplexing/demultiplexing method |
| 04/26/2005 | US6885822 Wavelength and filter arrangement for WDM networks |
| 04/26/2005 | US6885821 Full-duplex optical add/drop communications system utilizing central light sources |
| 04/26/2005 | US6885820 Method for controlling the signal/noise ratio of optical add/drop signals |
| 04/26/2005 | US6885807 High speed fiber-optic attenuation modules |
| 04/26/2005 | US6885802 Network for distributing signals to a plurality of user equipment |
| 04/26/2005 | US6885783 Device for detecting the PMD of optoelectronic transmission lines |
| 04/26/2005 | US6885499 Optical amplifying apparatus for amplifying wide-wavelength-band light, optical sending apparatus, optical transmission system, and optical amplifying method |
| 04/26/2005 | US6885490 Method and apparatus for characterizing optical pulses using reduced complexity chronocyclic tomography |
| 04/26/2005 | US6885462 Wavelength monitoring device and method of tunable laser sources |
| 04/26/2005 | US6885249 Optical signal receiving circuit and optical signal receiving semiconductor device |
| 04/26/2005 | CA2421554C Communication link with non-intrusive expansion capability |
| 04/21/2005 | WO2005036784A1 Expandable wavlength division multiplex transmitter |
| 04/21/2005 | WO2005036783A1 Method and apparatus for testing optical networks |
| 04/21/2005 | WO2005036782A1 Extendable wavelength division multiplex transmission device |
| 04/21/2005 | WO2005036760A2 Optical network monitoring system |
| 04/21/2005 | WO2005036212A2 Photodetector/optical fiber apparatus with enhanced optical coupling efficiency and method for forming the same |
| 04/21/2005 | WO2005020394A3 Laser driver circuit |
| 04/21/2005 | WO2005012949A3 Optical and electrical channel feedback in optical transceiver module |
| 04/21/2005 | WO2004098114A3 Apparatus for optical communication using a large-area primary reflector |
| 04/21/2005 | WO2004077111A3 Adaptive optical transponder |
| 04/21/2005 | WO2004075422A3 Module having two bi-directional optical transceivers |
| 04/21/2005 | WO2004065993A3 Free space optical communication system with power level management |
| 04/21/2005 | US20050084270 Variable-rate communication system with optimal filtering |
| 04/21/2005 | US20050084269 Modular optical transceiver |
| 04/21/2005 | US20050084268 Optoelectronic transceiver for a bidirectional optical signal transmission |
| 04/21/2005 | US20050084263 Hybrid optical ring-mesh protection in a communication system |
| 04/21/2005 | US20050084262 Protected bidirectional wdm network |
| 04/21/2005 | US20050084202 Monitoring of a laser source with front and rear output photodetectors to determine frontal laser power and power changes over laser lifetime |
| 04/21/2005 | DE4402166B4 Endstellenmodul für bidirektionale optische Signalübertragung und Verfahren zu dessen Herstellung Endstellenmodul for bidirectional optical signal transmission, and process for its preparation |
| 04/21/2005 | DE10164643B4 Verfahren zur direkten Qualitätsermittlung von optischen Übertragungskanälen und Anordnung zu dessen Durchführung Method for the direct determination of the quality of optical transmission channels and arrangement for its implementation |
| 04/20/2005 | EP1524810A1 Optical bus transmission method |
| 04/20/2005 | EP1524789A2 Control system using a mini slot signal in a passive optical network |
| 04/20/2005 | EP1524786A2 Optoelectronic transceiver for bidirectional optical transmission |
| 04/20/2005 | EP1524785A1 Optical fibre transmission system with Raman amplification |
| 04/20/2005 | EP1524784A2 Voltage controlled oscillator |
| 04/20/2005 | EP1524783A2 RZ-AMI optical transmitter module |
| 04/20/2005 | EP1524782A2 Optical synchronisation arrangement |
| 04/20/2005 | EP1524781A1 Optical link performance monitoring using OTDM with laser for data transmission/reception |
| 04/20/2005 | EP1524548A1 Stabilization of modulators for rz-modulation formats |
| 04/20/2005 | EP1523817A1 Optical receiver circuit |
| 04/20/2005 | EP1192494A4 Method and apparatus for higher-order chromatic dispersion compensation |
| 04/20/2005 | CN2694634Y Infrared transmission and reception device suitable for axial symmetrical mounting |
| 04/20/2005 | CN2694633Y High insulating degree wavelength-division multiplexer / demultiplexer |
| 04/20/2005 | CN2694632Y High insulating degree wavelength-division multiplexer / demultiplexer |
| 04/20/2005 | CN1608357A Communication system by terminal with no power supply |
| 04/20/2005 | CN1607748A Optical transceiver over single communication link |
| 04/20/2005 | CN1198420C Optical amplification device, optical emitting device, optical transferring system and optical amplification method |
| 04/20/2005 | CN1198414C Information transmission system and method, information sender and receiver |
| 04/20/2005 | CN1198393C DC bias compensating circuit, difference amplifying circuit and photoelectric pulse converting circuit |
| 04/20/2005 | CN1198176C Optical amplifier and its method |
| 04/20/2005 | CN1198156C Dispersion-compensating optical fiber, module and optical transmission line |
| 04/19/2005 | US6882944 Threshold setting apparatus for adjustably setting a threshold for use in identifying serial data from a baseband signal |
| 04/19/2005 | US6882802 Modulator and method of modulating optical carrier with clock signal before or after the carrier is modulated with data pulse |
| 04/19/2005 | US6882801 Wavelength division multiplex optical star coupler, communication station, and optical transmission system |
| 04/19/2005 | US6882799 Multi-grained network |
| 04/19/2005 | US6882798 Optical transmission apparatus with an optimal routing and data transmitting capability and a method of determining an optimal route on optical transmission |
| 04/19/2005 | US6882787 Fiber profile for achieving very high dispersion slope |
| 04/19/2005 | US6882779 Arrayed waveguide grading with optical input and output characteristics settable to desired values |
| 04/19/2005 | US6882772 Optical device for dispersion compensation |
| 04/19/2005 | US6882771 Apparatus and method for providing gain equalization |
| 04/19/2005 | US6882760 Polarization dispersion compensating apparatus |
| 04/19/2005 | US6882468 Raman amplifier |
| 04/19/2005 | US6882467 Raman amplification method and optical signal transmission method using the same |
| 04/19/2005 | US6882466 Optical amplifier |