Patents
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)
04/2004
04/21/2004EP1411653A2 Method and device for the control of the power radiated in a free-space optical transmission system
04/21/2004EP1411652A2 Method for reducing fading arising in optical free space communication
04/21/2004EP1411641A2 Error correction decoding using optical signal processing
04/21/2004EP1410679A2 Supplemental audio content system with wireless communication for a cinema and related methods
04/21/2004EP1410577A1 Network component for an optical network comprising an emergency operation function, especially for an optical network in ring topology
04/21/2004EP1410543A1 Local access fiber optics communication system
04/21/2004EP1410538A2 Optical communication system and apparatus for compensation or emulation of pmd effects
04/21/2004EP1410537A2 System and method of dispersion compensation in optical communication systems
04/21/2004EP1410536A2 Raman assisted edfa system and method
04/21/2004EP1410535A1 Method of power control in an optical communication system
04/21/2004EP1410534A2 System and method for mass broadband communications
04/21/2004EP1410533A1 Long line fiber optic communication system without repeaters or with widely spaced repeaters and with inexpensive amplifiers
04/21/2004EP1410425A1 Topside active optical device apparatus and method
04/21/2004EP1042871A4 Digital radio-frequency transceiver
04/21/2004EP0960492B1 Signalling system
04/21/2004EP0805569B1 Optical fiber transmission system
04/21/2004CN2613105Y Plug structure improvement of plug-type optical transceiver module
04/21/2004CN1491510A Improvements in, relating to, optical communications
04/21/2004CN1491501A Method and electro-optical circuit arrangement for line protection in WDM data transmission link
04/21/2004CN1490971A Light generator for WDM optical communication system
04/21/2004CN1490970A Dynamic gain balancing method and optical transmission system therewith
04/21/2004CN1490969A Optical multiring net for burst data communication
04/21/2004CN1490942A Optical signal transmission delay measuring method in transmission chain and apparatus thereof
04/21/2004CN1490941A Raman amplifier with controllable gains and control method thereof
04/21/2004CN1490659A Method for uniformizing gain spectrum of Raman erbium dosed oplical fiber amplifier
04/21/2004CN1490658A Differential frequency all optical wavelength converter
04/21/2004CN1490639A Fabry-perot laser device for WDM system
04/21/2004CN1147076C Burst time-delay control device in ATM passive optic network system and its implement method
04/21/2004CN1147075C Single-fiber two-way integral optical module for burst transmission
04/21/2004CN1147074C Single-fiber two-way integral optical module for burst reception
04/21/2004CN1146850C Tricolor LED display system with audio output
04/21/2004CN1146741C Optical apparatus which uses virtuaily imaged phased array to produce chromatic dispersion
04/20/2004US6725160 Correlated weather and performance measurement system for extremely high frequency wireless and free space optical communication systems
04/20/2004US6724997 Dispersion compensation in optical communication network and optical communication network
04/20/2004US6724995 Bidirectional router and a method of bidirectional amplification
04/20/2004US6724993 Optical transmitter-receiver
04/20/2004US6724966 Optical transmission line
04/20/2004US6724956 Method and apparatus for providing dispersion compensation
04/20/2004US6724955 Add-drop multiplexer with signal amplification ability
04/20/2004US6724953 Optical cross-connect apparatus, and its signal monitoring method
04/20/2004US6724952 Wavelength selective cross-connect (WSC)
04/20/2004US6724800 Wavelength monitor and laser module
04/20/2004US6724789 Dense wavelength division multiplexing (DWDM) fiberoptic source
04/20/2004US6724786 Variable optical attenuator using wavelength locked loop tuning
04/20/2004US6724783 Method and apparatus for arbitrary waveform generation using photonics
04/20/2004US6724527 Optical amplifier and optical transmission system using same
04/20/2004US6724526 Inter-wavelength light power deviation monitoring method and optical equalizer and optical amplifier utilizing the method
04/20/2004US6724525 Raman amplifying control unit and optical transmission system
04/20/2004US6724524 Gain control in Raman amplifiers
04/20/2004US6724523 Remotely locatable RF power amplification system
04/20/2004US6724508 Internal reflection apparatus and method using a holographic optical element for a free space optical communication system
04/20/2004US6724484 Format insensitive and bit rate independent optical preprocessor
04/20/2004US6723978 Fiber optic conversion system and method
04/20/2004US6723573 Photonic devices and PICs including sacrificial testing structures and method of making the same
04/20/2004US6722793 Optical bidirectional transceiver module having a pin element with integrated WDM filter
04/20/2004CA2311435C Capacitor regulated high efficiency driver for light emitting diode
04/15/2004WO2004032386A1 Electrical domain mitigation of polarization dependent effects in an optical communications system
04/15/2004WO2004032385A1 Optical dispersion compensation in the electrical domain in an optical communications system
04/15/2004WO2004032383A1 Raman amplifier
04/15/2004WO2004032382A1 Optical communications processing system, components and operating method thereof
04/15/2004WO2004031847A1 Raman amplifier and raman amplification system
04/15/2004WO2004031827A1 Er-doped superfluorescent fiber source with enhanced mean wavelength stability
04/15/2004WO2004025903A3 Methods for dynamic bandwidth allocation and queue management in ethernet passive optical networks
04/15/2004WO2003088472A3 Atomic clock based on an opto-electronic oscillator
04/15/2004WO2003063400B1 Method for securing an optical telecommunication ring network
04/15/2004WO2003001737A9 Method and system for processing upstream packets of an optical network
04/15/2004WO2003001708A3 Tunable chromatic dispersion compensation
04/15/2004WO2002061955B1 System and method for wireless data exchange between an appliance and a handheld device
04/15/2004US20040073725 Data time difference absorbing circuit and data receiving method and device
04/15/2004US20040073394 Temperature compensation device and method with low heat-generation
04/15/2004US20040073202 Laser system with fiber-bound communication
04/15/2004US20040072540 Communications terminal using infrared link
04/15/2004US20040072539 Resource allocation to terrestrial and satellite services
04/15/2004US20040071474 Optical transmitter
04/15/2004US20040071473 Duobinary optical transmitter
04/15/2004US20040071472 Optical sampling system for simultaneously monitoring intensity modulation and frequency modulation
04/15/2004US20040071471 Method and system for pairing a remote control transmitter and receiver
04/15/2004US20040071470 Free-space optics microroom
04/15/2004US20040071468 Optical multi-ring network for burst data communication
04/15/2004US20040071467 Method and system for powering up an optical network
04/15/2004US20040071438 Method for audibly measuring optical efficiency in an installed fiber optic link
04/15/2004US20040071419 Positive dispersion optical fiber
04/15/2004US20040071399 Self-seeded fabry-perot laser device for wavelength division multiplexing system
04/15/2004US20040071397 Optical communication system using 4 wavelength add/drop type wavelength division multiplexing
04/15/2004US20040071392 Optical shutter
04/15/2004US20040071389 Optical and electrical channel feedback in optical transceiver module
04/15/2004US20040071381 System and method for PMD measurement from coherent spectral analysis
04/15/2004US20040071160 Wavelength division multiplexing optical switching system
04/15/2004US20040070832 Electro-optic gating arrangement with improved duty cycle
04/15/2004US20040070819 Broadband tunable optical amplifier
04/15/2004US20040070818 Devices and methods for raman amplification and dispersion compensation
04/15/2004US20040070805 Apparatus and method for optimum decision threshold setting
04/15/2004US20040070749 System and method for measuring polarization dependent gain of an optical amplifier
04/15/2004US20040070351 Circuitry and methods for improving the performance of a light emitting element
04/15/2004US20040069997 Method and apparatus for multiboard fiber optic modules and fiber optic module arrays
04/15/2004US20040069941 Method of automatic standardized calibration for infrared sensing device
04/15/2004US20040069853 Smart card having an optical communication circuit and a method for use thereof
04/15/2004DE10246612A1 Optisches Nachrichten verarbeitendes System, Komponenten und Betriebsverfahren dafür Optical communication processing system, components and operating method therefor
04/15/2004DE10205294B4 Optoelektronische Vorrichtung Optoelectronic device
04/15/2004CA2497653A1 Er-doped superfluorescent fiber source with enhanced mean wavelength stability