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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01/02/2003 | EP1271805A1 Method and apparatus for the correction of optical signal wave front distortion within a free-space optical communication system |
01/02/2003 | EP1271804A2 Power feeding for an optical transmission system |
01/02/2003 | EP1271372A1 System for selecting an appropriate optical fibre type for a communication network |
01/02/2003 | EP1271197A2 Wavelength division multiplexer using planar lightwave circuit |
01/02/2003 | EP1271193A1 Optical transmission line and optical transmission system including it |
01/02/2003 | EP1271114A2 Method and device for measuring the waveform of an optical signal |
01/02/2003 | EP1269664A1 Optical communication system with two parallel transmission paths |
01/02/2003 | EP1269663A1 A communications network architecture |
01/02/2003 | EP1269662A1 Power controlling network element |
01/02/2003 | EP1269661A1 Method and system for controlling polarization mode dispersion |
01/02/2003 | EP1269660A1 Optocoupler for a non-intrinsically safe circuit |
01/02/2003 | EP1269234A2 Fiber optic device operating at two or more wavelengths |
01/02/2003 | EP1269233A2 Dispersion slope compensating optical waveguide fiber |
01/02/2003 | EP1269115A1 Battery module transceiver for extending the range of an infrared remote controller |
01/02/2003 | EP0782796B1 Optical data communication and location apparatus and method for use therewith |
01/02/2003 | EP0740894B1 Infrared communication system |
01/02/2003 | DE20209528U1 Communications network optical transfer switch detects traffic gaps |
01/01/2003 | CN2529460Y Y-shape two-type fibre-optical groove |
01/01/2003 | CN1388660A Single photon generator |
01/01/2003 | CN1388659A Great-range system delay regulating method and circuit for passive optical optical network |
01/01/2003 | CN1388658A Bandwidth compensating method for ranging ATM passive optical network |
01/01/2003 | CN1388657A Remote controller finder |
01/01/2003 | CN1388656A Expanding apparatus with attenuating light filter using for regulating optical signal gain |
01/01/2003 | CN1388392A Temperature compensating equipment of optical fibre raster |
01/01/2003 | CN1097905C Network system for communicating with plural channels node device and communication method |
01/01/2003 | CN1097878C Electric isolation between infrared receiver and further electronic circuits |
01/01/2003 | CN1097738C Dispersion-flattened single-modular optical waveguide with large effective module surface area |
12/31/2002 | US6501876 Bidirectional optical communication device and bidirectional optical communication apparatus |
12/31/2002 | US6501871 Active equipment protection methods and apparatus communicatively decoupling data add/drops |
12/31/2002 | US6501870 System and method for reducing effects of optical impairments in optically amplified lightwave communication systems |
12/31/2002 | US6501774 Optical transmission apparatus for multiple wavelengths and optical transmission wavelength control method |
12/31/2002 | US6501594 Long-band fiber amplifier using feedback loop |
12/31/2002 | US6501593 Raman amplifier, optical repeater, and raman amplification method |
12/31/2002 | US6501583 Optical receiver module optical transmitter module phase-locked loop circuit voltage-controlled oscillator and frequency response controllable amplifier |
12/31/2002 | US6501582 Cascaded line-of sight free-space communications system |
12/31/2002 | US6501581 Adaptor and method for use with a light-communication device |
12/31/2002 | US6501580 Method and apparatus for optimizing dispersion in an optical fiber transmission line in accordance with an optical signal power level |
12/31/2002 | US6501579 Apparatus, system, and method for extracting an optical clock signal from an optical data signal |
12/31/2002 | US6501578 Apparatus and method for line of sight laser communications |
12/31/2002 | US6501577 Optical data bus for a vehicle |
12/31/2002 | US6501576 Wireless data transfer using a remote media interface |
12/31/2002 | US6501574 Optical multiplex transmission apparatus and optical multiplex transmission method |
12/31/2002 | US6501573 Apparatus and method for monitoring the qualities of optical signal using clock amplitude |
12/31/2002 | US6500026 Hybrid connector and process for assembling the same |
12/31/2002 | CA2289400C High speed differential optoelectronic receiver |
12/29/2002 | CA2384236A1 Wavelength-selective add/drop arrangement for optical communication systems |
12/29/2002 | CA2383022A1 Method and apparatus for the correction of optical signal wave front distortion within a free-space optical communication system |
12/29/2002 | CA2382635A1 Method and apparatus for the correction of optical signal wave front distortion within a free-space optical communication system |
12/28/2002 | CA2383717A1 An optical fiber based on wireless scheme for wideband multimedia access |
12/27/2002 | WO2002103956A1 Error-correction multiplexing apparatus, error-correction demultiplexing apparatus, optical transmission system using them, and error-correction multiplexing transmission method |
12/27/2002 | WO2002103948A1 Optical communication system |
12/27/2002 | WO2002103939A1 Optical network system and controller |
12/27/2002 | WO2002103938A2 Method and apparatus for optical data signaling using dark photodiode |
12/27/2002 | WO2002103937A1 Optical communication system and optical communication apparatus |
12/27/2002 | WO2002103936A2 Method and apparatus for reporting input powers in an optical device |
12/27/2002 | WO2002103935A1 Optical communication device and system |
12/27/2002 | WO2002103447A1 Wavelength selective optical device |
12/27/2002 | WO2002103418A2 Integrated optical device |
12/27/2002 | WO2002084901A3 Method for controlling a laser-based 3r regenerator |
12/27/2002 | WO2002071670A3 Method and system for handling optical signals |
12/27/2002 | WO2001078262A3 Remotely-interrogated high data rate free space laser communications link |
12/26/2002 | US20020198994 Method and system for enabling and controlling communication topology, access to resources, and document flow in a distributed networking environment |
12/26/2002 | US20020198028 Telephone regulation system and portable telephone terminal device used in such a system |
12/26/2002 | US20020197986 Cellular communications system featuring a central radio pool/traffic router |
12/26/2002 | US20020197008 Wavelength division multiplexer using planar lightwave circuit |
12/26/2002 | US20020197007 Flexible optical network architecture and optical add/drop multiplexer/demultiplexer therefor |
12/26/2002 | US20020197006 Flexible optical network architecture |
12/26/2002 | US20020197001 Optical crossconnect system and its controller and method |
12/26/2002 | US20020196549 Multi-pass configurations |
12/26/2002 | US20020196541 Tunable optical filter |
12/26/2002 | US20020196530 Optical amplifier |
12/26/2002 | US20020196528 Optical amplifier modules |
12/26/2002 | US20020196527 Method for the amplification of wavelength division multiplex (WDM) signals in a WDM transmission system, as well as optical amplifier, optical amplifier system and WDM transmission system for it |
12/26/2002 | US20020196520 Programmable optical multiplexer/demultiplexer |
12/26/2002 | US20020196509 Light source for generating an output signal having spaced apart frequencies |
12/26/2002 | US20020196508 Generation of optical signals with return-to-zero format |
12/26/2002 | US20020196507 Optical transmission system |
12/26/2002 | US20020196506 Atmospheric optical data transmission system |
12/26/2002 | US20020196505 Power feeding for an optical transmission system |
12/26/2002 | US20020196504 Gain equalizer for two-way transmission and monitor circuit for two-way transmission |
12/26/2002 | US20020196503 Method and system for dispersion control of electromagnetic signals in communication networks |
12/26/2002 | US20020196502 Sheet-like electrooptical component, light-guide configuration for serial, bidirectional signal transmission and optical printed circuit board |
12/26/2002 | US20020196501 Tandem optoelectronic transciver package and method of operating an optical fiber communication network employing the same |
12/26/2002 | US20020196500 Optical subassembly for optical communications |
12/26/2002 | US20020196499 Method and system for multiplexed optical information transport |
12/26/2002 | US20020196498 Optical pulse addition device |
12/26/2002 | US20020196495 Device for adding and dropping optical signals |
12/26/2002 | US20020196492 Method and apparatus for dynamic equalization in wavelength division multiplexing |
12/26/2002 | US20020196491 Passive optical network employing coarse wavelength division multiplexing and related methods |
12/26/2002 | US20020196490 Optical transmission systems, devices, and methods |
12/26/2002 | US20020196489 Wavelength division multiplexing communications network supervisory system |
12/26/2002 | US20020196430 Measuring optical signal power in an optical system |
12/26/2002 | US20020196069 Distortion compensating circuit for electro-optical transducer |
12/25/2002 | CN1387737A Method and system for communication protection |
12/25/2002 | CN1387709A Method and device for optimizing optical transfer signal modulated with binary data signal |
12/25/2002 | CN1387337A Small time slot control system in passive optical network |
12/25/2002 | CN1387330A Bidirectional optical communication equipment device and bidirectional optical communication apparatus |
12/25/2002 | CN1387329A Multi-granularity light switch based on label |
12/25/2002 | CN1097221C Infrared data transfer from selectine calling receiving to information processing device |
12/25/2002 | CA2385691A1 Cellular communications system featuring a central radio pool/traffic router |