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)
11/2006
11/02/2006EP1716650A1 System and method for generating optical return-to-zero signals with alternating bi-phase shift
11/02/2006EP1716649A1 An apparatus and method for generating an optical single sideband signal
11/02/2006EP1716648A1 System and method for generating optical return-to-zero signals with alternating bi-phase shift and frequency chirp
11/02/2006EP1716439A1 Dispersion compensating fiber for moderate dispersion nzdsf and transmission system utilizing same
11/02/2006EP1528696A4 Device for protecting fibre lines against destruction by laser radiation
11/02/2006DE102005056653A1 Optiksignalanalysesystem Optical signal analysis system
11/02/2006DE102005049390B3 Saturable absorber mirror for e.g. regeneration of optical wavelength division multiplexing signal, has spacing layer with anti-reflection layer arranged on semiconductor layer, and dielectric layer with laterally non-constant thickness
11/01/2006CN2834035Y Optical switcher for 650nm all optical network information transmission system
11/01/2006CN1856953A Method and system for secure upstream transmission in passive optical networks
11/01/2006CN1855792A Wavelength division multiplexed light source and passive optical network using the same
11/01/2006CN1855778A Passive optical network concatenating system and optical circuit terminal thereof
11/01/2006CN1855777A Network management system for an optical network
11/01/2006CN1855776A Abrupt optical signal receiver with AC coupling integration circuit
11/01/2006CN1855775A Device and method for monitoring optical fiber network
11/01/2006CN1855774A Optical receiving interface of optical channel inspection module
11/01/2006CN1855773A Infrared remote data communication device
11/01/2006CN1855772A Orientated message transmitting system and method
11/01/2006CN1854991A Structure and its method with infrared module as long-distance controlled interface
11/01/2006CN1854777A Optical communication module and optical element for optical communication module
11/01/2006CN1283058C Structure of optical switching node based on sharing convertor of adjustable wavelength
11/01/2006CN1283057C Optical communication node and optical network system
11/01/2006CN1283049C A passive optical looped network system and broken circuit protecting method
11/01/2006CN1283048C Channel power equalizing method for optical fiber Raman amplifier for wave division multiplexing communication system
11/01/2006CN1282885C Optical fibre and light-transmission line using the said optical fibre
10/2006
10/31/2006US7130546 Optical receiver
10/31/2006US7130545 High speed electro-optic clock recovery circuit
10/31/2006US7130544 Optical repeating system and optical amplifying repeater control method
10/31/2006US7130543 Bit rate-independent optical receiver
10/31/2006US7130542 Modular multiplexing/demultiplexing units in optical transmission systems
10/31/2006US7130541 System and method for communicating optical signals upstream and downstream between a data service provider and subscriber
10/31/2006US7130539 All optical decoding systems for optical encoded data symbols
10/31/2006US7130538 Optical switch and networking method
10/31/2006US7130537 Safety shutdown system for a WDM fiber optic communications network
10/31/2006US7130511 Flexible active signal cable
10/31/2006US7130505 Optical performance monitor
10/31/2006US7130504 Optical demultiplexing device and optical monitoring device
10/31/2006US7130499 Optical communication module utilizing plural semiconductor transmitter photonic integrated circuit (TxPIC) chips
10/31/2006US7130496 Optical fibre backscatter polarimetry
10/31/2006US7130113 Passive phasing of fiber amplifiers
10/31/2006US7130030 System and method for rapidly achieving optimum dispersion in optical transmission systems
10/31/2006CA2331954C Method and apparatus for stabilizing transient control in amplified optical networks
10/31/2006CA2264878C Optical dispersion compensation
10/26/2006WO2006113553A2 Dynamic bandwidth allocation and service differentiation for broadband passive optical networks
10/26/2006WO2006080899A8 Systems and methods for testing data link connectivity of an optical network employing transparent optical nodes
10/26/2006US20060239697 Methods and apparatus for sensing multiple wavelengths simultaneously in a single wavelength sensing device
10/26/2006US20060239696 Conformal retro-modulator optical devices
10/26/2006US20060239695 Frequency tuning of photonic oscillator using amplifier bias voltage
10/26/2006US20060239694 Data format for high bit rate wdm transmission
10/26/2006US20060239692 System and method for auto-configuring a telecommunication device with an embedded controller
10/26/2006US20060239691 Optical transceiver with connector
10/26/2006US20060239690 Changing transceiver module device addresses using a single host interface
10/26/2006US20060239689 Method and apparatus for illumination and communication
10/26/2006US20060239688 Multi wavelength electromagnetic device
10/26/2006US20060239687 Optical fiber communication link
10/26/2006US20060239686 Electromagnetic device with frequency downconverter
10/26/2006US20060239685 Method of transmitting a signal in a distributed bts system
10/26/2006US20060239684 Optical add/drop device, optical add/drop system, and optical signal add/drop method
10/26/2006US20060239675 Information reception device, information transmission system, and information reception method
10/26/2006US20060239630 Optical fiber radio transmission system, transmission device, and reception device
10/26/2006US20060239609 Methods and apparatuses to increase wavelength channels in a wavelength-division-multiplexing passive-optical-network
10/26/2006US20060239285 Synchronizing method in optical access network, optical switching device, center device, and remote device
10/26/2006US20060238923 Connecting module for communication
10/26/2006US20060238866 All-optical signal processing method and device
10/26/2006US20060238762 Frequency comb analysis
10/26/2006DE20321325U1 Link module for telecommunication and data technique incorporates base plate for applicable connecting modules for optical fibres, or electric conductors, with fastening membe or plate and modules, with at least one of each type
10/26/2006DE10145696B4 Kommunikationssystem, Kommunikationsverfahren und mobiles Endgerät Communication system, communication method and mobile terminal
10/25/2006EP1715704A1 Position information communication apparatus
10/25/2006EP1715610A1 Method and system for increasing a number of information channels carried by optical waveguides
10/25/2006EP1715602A1 Network management system for an optical network
10/25/2006EP1715598A1 Portable terminal with built-in camera for visible light communication
10/25/2006EP1714410A1 System and method for automatic chromatic dispersion compensation
10/25/2006EP1714409A1 Photonic rf distribution system
10/25/2006EP1714408A2 System and method for performance monitoring in a passive optical network
10/25/2006EP1714394A2 Ultra-wideband communication through a power grid
10/25/2006EP1714392A1 System and method for subcarrier modulation as supervisory channel
10/25/2006EP1610716A4 Apparatus and methods for delivery of multiple distributed stents
10/25/2006EP1582018A4 Extended source free-space optical communication system
10/25/2006EP1579606A4 Transmitter and method using half rate data streams for generating full rate modulation on an optical signal
10/25/2006EP1527533A4 High sensitivity, high resolution detection of signals
10/25/2006EP1257853A4 Wraparound optical switch matrix
10/25/2006CN2831623Y Power source control circuit of multi-way optical receiving/transmitting modular
10/25/2006CN2831622Y Near far end RF photoelectric converting modular in system of diversity reception direct-emitting station
10/25/2006CN1852071A Data-communication net work system of optical network and its realizing method
10/25/2006CN1852060A Multi-way optical-wavelength conversion duplexer
10/25/2006CN1852059A Free-space optical transmission mobile communication digital peater
10/25/2006CN1852058A Protective optical-fiber ring net special for single-fiber two-direction duplexing section
10/25/2006CN1852057A Method and system for realizing laser safety in optical fiber communication system
10/25/2006CN1852056A Optical cable network monitoring system and method
10/25/2006CN1852055A Optical associated signal loading, monitoring method and apparatus
10/25/2006CN1852054A Communication apparatus alarm processing method
10/25/2006CN1852053A Dispersed business analysing method
10/25/2006CN1852052A Optical-fiber line fault down stream alarm inhibiting method, apparatus and system
10/25/2006CN1852051A Method and apparatus for sharing protection of grouped light path
10/25/2006CN1282339C A data frame buffer memory device and method for Ethernet passive optical network
10/25/2006CN1282029C Optical fiber amplifier
10/25/2006CN1282004C Multimode waveguide polymer electrooptical modulator
10/25/2006CN1282001C Optical unit
10/25/2006CN1281991C Optical communication apparatus
10/24/2006US7127183 Output monitor/control apparatus and optical communication system
10/24/2006US7127182 Efficient optical transmission system