Patents
Sitemap › H04 - Electric communication technique › H04B - Transmission › 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
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)
11/2003
11/05/2003CN2585497Y Signal emitting/receiving device able to transfer video/audio signals
11/05/2003CN2585496Y Remote control emitter for TV set real-time display
11/05/2003CN1454418A Optical clock signal distribution system in WDM network
11/05/2003CN1454416A Optical ADD drop and dispersion compensation apparatus
11/05/2003CN1453969A Demodulation method with outer management channel for digital communication
11/05/2003CN1453945A Method and equipment for duplex communication in mixed optical fiber-radio system
11/05/2003CN1453944A Passive fiber network connected to IP network and its connection method
11/05/2003CN1453942A Modulation method with management channel for digital communication
11/05/2003CN1126967C Connector device
11/04/2003USRE38298 Double-core active fiber optical amplifier having a wide-band signal wavelength
11/04/2003US6643472 APD bias circuit
11/04/2003US6643471 Increased transmission capacity for a fiber-optic link
11/04/2003US6643470 FM signal converter, FM signal optical transmitter and FM signal optical receiver
11/04/2003US6643469 Method for improved wireless optical communication and frames for use in a wireless optical communication system
11/04/2003US6643468 Optical communication system, optical transmitting apparatus, optical receiving apparatus, optical communication method, and storage medium
11/04/2003US6643467 Method and apparatus for controlling received power levels within a free space optical communication system
11/04/2003US6643466 Method and apparatus for controlling signal power level in free space communication
11/04/2003US6643465 Method for checking a ring optical network line for data transmission between a plurality of network subscribers in a motor vehicle
11/04/2003US6643464 Constrained optical mesh protection for transmission systems
11/04/2003US6643436 Identifying fibers of fiber optic cables
11/04/2003US6643422 Optical switch changeover controlling method, optical node device and optical switch system
11/04/2003US6643417 All optical image reject down-converter
11/04/2003US6643255 Node of a point-to-multipoint network
11/04/2003US6643055 Optical amplifier control
11/04/2003US6643051 Method and system for generating return-to-zero signals
11/04/2003US6643046 Apparatus and method for optical modulation
11/04/2003US6643042 Optical communication network node
11/04/2003US6643041 Optical network
11/04/2003US6643040 Optical signal converter from RZ format to NRZ format
11/04/2003US6642872 Optical code converter for optical code division multiplex system
10/2003
10/30/2003WO2003090494A1 Context-aware device
10/30/2003WO2003090396A2 Method and system for providing a return data path for legacy terminals by using existing electrical waveguides of a structure
10/30/2003WO2003090385A2 Method and apparatus for frequency synthesis
10/30/2003WO2003090384A1 An arrangement for transmitting and/or receiving electromagnetic signals
10/30/2003WO2003090383A1 Systems and methods for compensating for signal transients
10/30/2003WO2003090382A1 Chromatic dispersion compensation system and method
10/30/2003WO2003090326A1 Method and apparatus for producing an optical output
10/30/2003WO2003089970A2 A wavelength monitor using an arrayed waveguide grating
10/30/2003WO2003061081A3 Method for configuring a laser operating system
10/30/2003WO2003049336A3 Method for transmitting multi-level signals through dispersive media
10/30/2003WO2003047651A3 Apparatus and methods for delivery of multiple distributed stents
10/30/2003WO2003044913A3 Optical communication module with photonic integrated circuit chip (pic) and external booster optical amplifier
10/30/2003WO2003043231A3 Method and apparatus for waveform synthesis and generation
10/30/2003WO2003014773A3 Dispersion managed discrete raman amplifiers
10/30/2003WO2003012499A8 Semiconductor multi-path wave guide to concurrently route signals
10/30/2003WO2002089368A3 Method for the ocdma encoding of optical signals
10/30/2003WO2002071654A3 Wireless optical system for multidirectionial high bandwidth communications
10/30/2003WO2002061986A3 Fiber optic communications using optical single side band transmission and direct detection
10/30/2003US20030202805 Optical receiving apparatus and method
10/30/2003US20030202804 Phase frequency synchronism circuitry and optical receiver
10/30/2003US20030202803 Signal level detecting device for a burst-mode optical receiver
10/30/2003US20030202802 Automatic threshold control device for burst mode optical receiver
10/30/2003US20030202801 Method and apparatus for information modulation for impulse radios
10/30/2003US20030202799 Optical channel monitor using an angle-tuned fabry-perot optical filter
10/30/2003US20030202798 Polarization mode dispersion compensator parallel monitoring and control architecture
10/30/2003US20030202797 Method for remodulation of a modulated optical signal and device for remodulation and transmission system
10/30/2003US20030202796 Optical wireless communication device and postion adjustment method therefor
10/30/2003US20030202795 Dynamic measurement of and compensation for impairments to optical data communication pulses
10/30/2003US20030202794 Opto-electronic ultra-wideband signal waveform generator and radiator
10/30/2003US20030202761 Fibre for compensation of the cumulative chromatic dispersion in a fibre with negative chromatic dispersion
10/30/2003US20030202749 Integrated optical dual dispersion compensator for compensating both chromatic and polarization mode dispersion
10/30/2003US20030202742 Wavelength multiplexing/demultiplexing unit, wavelength multiplexing/demultiplexing apparatus and wavelength multiplexing/demultiplexing method
10/30/2003US20030202731 Multi-aperture beam steering system with wavefront correction based on a tunable optical delay line
10/30/2003US20030202613 Burst-mode combining of reverse path radio frequency signals
10/30/2003US20030202466 Photoelectric cross-connect system
10/30/2003US20030202237 Method and system for optical fiber transmission using Raman amplification
10/30/2003US20030202227 Internal reflection apparatus and method using a holographic optical element for a free space optical communication system
10/30/2003US20030201950 Light-emitting element drive circuit
10/30/2003US20030201721 Method and system for transmitting and displaying information on a wireless device using plastic electronics
10/30/2003US20030201382 Automatic gain control device for a burst-mode optical receiver
10/29/2003EP1357717A1 Automatic detection threshold control device for burst mode optical receiver
10/29/2003EP1357690A1 Intelligent optical network element
10/29/2003EP1357686A1 Remodulator for optical communication systems
10/29/2003EP1357685A2 Burst-mode optical receiver
10/29/2003EP1357684A2 Optical transceiver systems and methods
10/29/2003EP1357683A2 Hybrid fibre-radio system
10/29/2003EP1357682A1 Module apparatus for optical communication and circuit pack therefor
10/29/2003EP1357665A2 Automatic gain control device for a burst-mode optical receiver
10/29/2003EP1356621A1 Grooming of channels in wavelength division multiplexed optical communication systems
10/29/2003EP1356620A1 Wdm optical communications system
10/29/2003EP1356619A1 Method and electro-optical circuit arrangement for line protection in a wdm data transmission link
10/29/2003EP1356613A1 A method and system for transmission in an optical network
10/29/2003EP1356612A2 Optical pulse regenerating transmission lines
10/29/2003EP1356611A2 Mems-based polarization mode dispersion compensator
10/29/2003EP1356610A2 Universal lighting network method and system
10/29/2003EP1356609A2 Monitor, control and configuration of fiber node via cable modem
10/29/2003CN2583887Y Device for multipath wave length light-power and light frequency monitoring based on waveguide array grating
10/29/2003CN2583692Y Composite function optical collimator
10/29/2003CN2583691Y Optical group set filter
10/29/2003CN2583690Y Apparatus capable of realizing optical wave filtering and chromatic dispersion compensating function at the same time
10/29/2003CN1452727A Optical signal transmitter and optical signal transmitting method
10/29/2003CN1452723A Dispersion-compensating optical fiber with W-shaped index profile
10/29/2003CN1452341A Method and system for control of light signal transmission
10/29/2003CN1452328A Erbium doped optical fibre light amplifier
10/29/2003CN1451991A Tunable light filter
10/29/2003CN1451977A Dispersion compensation optical fibre by high order mode
10/29/2003CN1451951A System for measuring and controlling power loss of light transmission line, and related method
10/29/2003CN1126316C Full duplex asynchronous communication in single communication system
10/29/2003CN1126310C Interoffice channel signal transmission unit in wave division multiplex system
10/29/2003CN1126309C Public affaiks board for wavelength division multiplexing light transmission system
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