| 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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| 04/19/2005 | US6882456 Laser pulse shaping device |
| 04/14/2005 | WO2005034392A1 Infrared (ir) receiver device |
| 04/14/2005 | WO2005034391A1 Secure optical communication |
| 04/14/2005 | WO2005034390A2 An improved communication link for communicating data |
| 04/14/2005 | WO2005034370A2 Method and apparatus for improved high-speed adaptive equalization |
| 04/14/2005 | WO2005033744A2 An airborne free-space-optical system utilizing three-tier, ultrafine steering |
| 04/14/2005 | WO2005017583A3 Buried fiber optic system including a sub-distribution system and related methods |
| 04/14/2005 | WO2005011158A8 An optical fiber transmission system, a method for implement of optical fiber transmission and terminal processing equipment |
| 04/14/2005 | WO2004109959A3 Intelligent wavelength division multiplexing systems based on arrays of wavelength tunable lasers and wavelength tunable resonant photodetectors |
| 04/14/2005 | WO2004068728A3 Apparatus and method for tracking in free-space optical communication systems |
| 04/14/2005 | US20050078966 Identification level control method and optical receiver |
| 04/14/2005 | US20050078965 RZ-AMI optical transmitter module |
| 04/14/2005 | US20050078964 System for compensating for chromatic dispersion and polarization mode dispersion |
| 04/14/2005 | US20050078963 Cancellation of optical signal reflections in bi-directional optical fibers |
| 04/14/2005 | US20050078962 Offset signal launch in optical fiber |
| 04/14/2005 | US20050078961 System for transmitting signals in free space and method thereof |
| 04/14/2005 | US20050078960 Subscriber distribution network apparatus and subscriber line unit that facilitates connection to network switch |
| 04/14/2005 | US20050078959 Apparatus for switching optical channel overhead in optical supervisory channel of optical transport network system and apparatus for forwarding optical channel maintenance signal |
| 04/14/2005 | US20050078957 Optical network monitor |
| 04/14/2005 | US20050078933 Optical communication multiplex device for vehicle and communication method using same |
| 04/14/2005 | US20050078920 Micro optical communication device package |
| 04/14/2005 | US20050078916 Integrated optical assembly |
| 04/14/2005 | US20050078905 Optically amplifying waveguide, optical amplifier module, and optical communication system |
| 04/14/2005 | US20050078902 Photonic interconnect system |
| 04/14/2005 | US20050078779 Optical signal equalizer with adjustable linear filter |
| 04/14/2005 | US20050078722 Laser trim and compensation methodology for passively aligning optical transmitter |
| 04/14/2005 | US20050078721 Laser trim and compensation methodology for passively aligning optical transmitter |
| 04/14/2005 | US20050078358 Wavelength division multiplexed optical amplifier |
| 04/14/2005 | US20050078356 WDM optical communication system capable of monitoring temperature |
| 04/14/2005 | US20050078355 Raman amplification repeater |
| 04/14/2005 | US20050078352 Raman amplification method and optical signal transmission method using same |
| 04/14/2005 | US20050078351 Optical transmission system with raman amplifiers comprising a supervisory system |
| 04/14/2005 | US20050078350 All-optical, 3R regeneration using the sagnac and mach-zehnder versions of the terahertz optical asymmetric demultiplexer (TOAD) |
| 04/14/2005 | US20050078317 Synchronizing the filter wavelength of an optical filter with the wavelength of a swept local oscillator signal |
| 04/14/2005 | US20050078301 Method and apparatus for controlling optical signal power |
| 04/14/2005 | DE10342339A1 Prüfsystem und Prüfverfahren für faseroptische Lichtwellenleiter Test system and test methods for fiber-optical waveguide |
| 04/14/2005 | CA2540092A1 Secure optical communication |
| 04/13/2005 | EP1523114A2 Optical transmission system |
| 04/13/2005 | EP1523078A1 Optical semiconductor device |
| 04/13/2005 | EP1522840A1 Method and apparatus for determining the gain characteristic of a distributed raman amplifier |
| 04/13/2005 | EP1522166A2 Watch dog detector for qkd system |
| 04/13/2005 | EP1522157A2 Distributed raman amplifier for optical network and method |
| 04/13/2005 | EP1522156A1 Method and apparatus for directly modulating a laser diode using multi-stage laser driver circuity |
| 04/13/2005 | EP1522150A1 Information retrieval system based on position of the light source |
| 04/13/2005 | EP1522128A2 Laser driver circuit and system |
| 04/13/2005 | EP1522069A1 Optical signal receiving unit and apparatus for reproducing information |
| 04/13/2005 | EP1430629B1 Method and apparatus for transmission of upstream data in an optical network |
| 04/13/2005 | EP1057073B1 Tunable optical add/drop multiplexer |
| 04/13/2005 | EP0878079B1 Self-healing network |
| 04/13/2005 | CN1606267A Optical communication multiplex device for vehicle and communication method using same |
| 04/13/2005 | CN1606260A A fault positioning method and equipment for communication network |
| 04/13/2005 | CN1606245A Wireless transmission voice playing and voice pickup assembly for embedding and separate uses |
| 04/13/2005 | CN1606236A DC offset cancellation circuit, differential amplification circuit, photo-electric pulse conversion circuit |
| 04/13/2005 | CN1605895A Receiver optical sub-assembly with reduced back reflection |
| 04/13/2005 | CN1197307C Method and system for providing end-to-end protection in point-to-multipoint access-to network |
| 04/13/2005 | CN1197277C Infrared data communication device and method |
| 04/13/2005 | CN1197276C Optical signal transmission apparatus and optical signal transmission method |
| 04/13/2005 | CN1196917C Optical system for simultaneous detecting calibration system and test signal in optical spectrum analyser |
| 04/12/2005 | US6879784 Bi-directional optical/electrical transceiver module |
| 04/12/2005 | US6879783 Node device and optical network system |
| 04/12/2005 | US6879762 Optical transmission line and optical transmission system using optical transmission line |
| 04/12/2005 | US6879755 Optical structure for the compensation of chromatic dispersion and dispersion slope in a light signal |
| 04/12/2005 | US6879748 Arrayed waveguide grading with optical input and output characteristics settable to desired values |
| 04/12/2005 | US6879640 Method, apparatus and system for high-speed transmission on fiber optic channel |
| 04/12/2005 | US6879558 Switching method for bidirectional line switched ring and node apparatus used in the ring |
| 04/12/2005 | US6879437 Gain control in optical amplifiers |
| 04/12/2005 | US6879434 Distributed raman amplifier for optical network and method |
| 04/12/2005 | US6879426 System and method for programmable polarization-independent phase compensation of optical signals |
| 04/12/2005 | US6879422 Method of analog modulation and optical emitter using this method |
| 04/12/2005 | US6879217 Triode region MOSFET current source to bias a transimpedance amplifier |
| 04/12/2005 | US6879216 Integrated circuit that provides access to an output node of a filter having an adjustable bandwidth |
| 04/12/2005 | US6878958 Vertical cavity surface emitting laser with buried dielectric distributed Bragg reflector |
| 04/12/2005 | US6877913 Card type optical transceiver module |
| 04/12/2005 | US6877911 Optical-fiber supporting member and optical transmission device using the same |
| 04/12/2005 | CA2340062C Time-wavelength multiple access optical communication systems and methods |
| 04/07/2005 | WO2005032076A1 Path optimization method in optical network and light transmission node for realizing path optimization |
| 04/07/2005 | WO2005031385A1 Optical imagins system with optical delay lines |
| 04/07/2005 | WO2004019458A3 Sharing pump energy among different fiber pairs |
| 04/07/2005 | US20050075090 RF power device with on-chip digital control and optical interface |
| 04/07/2005 | US20050074245 Differential encoder for an optical dqpsk modulator |
| 04/07/2005 | US20050074244 Optimization of a communications system based on identification of an optical member |
| 04/07/2005 | US20050074241 System and method for communicating optical signals between a data service provider and subscribers |
| 04/07/2005 | US20050074240 Wavelength-division-multiplexed passive optical network system using wavelength-seeded light source |
| 04/07/2005 | US20050074236 Optical network monitoring system |
| 04/07/2005 | US20050074208 Monitor for an optical fibre and multi-guide optical fibre circuits and methods of making them |
| 04/07/2005 | US20050074205 Optical demultiplexer circuit and demultiplexer device and optical wavelength division multiplex circuit |
| 04/07/2005 | US20050074195 Optical monitoring apparatus for use in wavelength division multiplexing network |
| 04/07/2005 | US20050074042 Laser driver circuit for burst mode transmission |
| 04/07/2005 | US20050073965 Auto-negotiation monitor system, repeating-transmission apparatus, and auto-negotiation monitor method used therefor |
| 04/07/2005 | US20050073950 Method and apparatus for resolving deadlock of auto-negotiation sequence between switches |
| 04/07/2005 | US20050073422 Method and apparatus for enabling optical communication through low intensity indicators in an appliance that uses a vacuum flourescent display |
| 04/07/2005 | US20050073268 Drive device for a light-emitting component |
| 04/07/2005 | DE10328749B4 Verfahren und Anordnung zur Formierung von Empfangsimpulsen in einem Infrarot-Empfänger Method and apparatus for forming reception pulses in an infrared receiver |
| 04/06/2005 | EP1520445A1 A path protection method for a wdm network and according node |
| 04/06/2005 | EP1520364A2 Wdm optical transmission system with passive hub |
| 04/06/2005 | EP0862820B1 Device for the optical transmission of signals |
| 04/06/2005 | CN1604591A A routing area relation management and regulating method for hierarchical network |
| 04/06/2005 | CN1604580A High speed modulation of optical subcarriers |
| 04/06/2005 | CN1604543A Method and apparatus for resolving deadlock of auto-negotiation sequence between switches |
| 04/06/2005 | CN1604542A Auto-negotiation monitor system, repeating-transmission apparatus, and auto-negotiation monitor method used therefor |