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)
07/2009
07/02/2009US20090169212 Optical transmission apparatus and optical communication system
07/02/2009US20090169209 Network system, optical line terminating apparatus, and optical network apparatus
07/02/2009US20090169208 Systems and methods for the polarization insensitive coherent detection and the polarization division multiplexed transmission of optical communication signals
07/02/2009US20090169207 Determining transmission port in a gpon network
07/02/2009US20090169203 Optical transmission device and optical transmission method
07/02/2009US20090169202 Link Discovery and Verification Using Loss of Light
07/02/2009US20090169201 Optical transmission apparatus
07/02/2009US20090169154 Multiple Channel Optical Tranceiver Modules with Compatibility Features
07/02/2009US20090168858 Digital diagnostics parameter storage
07/02/2009DE112007001955T5 High-Dynamic Range faseroptisches Analog-Link unter Verwendung von Phasenmodulation und einstellbarem optischem Filter High-dynamic range analog fiber-optic link using phase modulation and adjustable optical filter
07/02/2009DE102007061799A1 Linsenanordnung für optische Drehübertrager in beliebigen Umgebungsmedien Lens array for optical rotary transformer in any ambient media
07/02/2009DE102007061676A1 Verfahren zur optischen Freiraum-Datenübertragung und Vorrichtung zur Durchführung des Verfahrens A process for free-space optical data transmission, and apparatus for carrying out the method
07/01/2009EP2075930A1 Methods and apparatus for improved jitter tolerance in an SFP limit amplified signal
07/01/2009EP2075848A2 Optical power for electronic circuits using a single photovoltaic component
07/01/2009EP2075161A1 Improvements in telematics equipment on board a vehicle
07/01/2009EP2007042A9 Wavelength division multiplexing system and residual dispersion compensating device and method thereof
07/01/2009EP1836515A4 Apparatus and method for using a counter-propagating signal method for locating events
07/01/2009EP1154291B1 Optical communication apparatus
07/01/2009CN201266937Y Myriad million light transmit-receive integrated module
07/01/2009CN101473568A Transponder for a radio-over-fiber optical fiber cable
07/01/2009CN101471732A Chromatic dispersion compensation method and planning device for netted network
07/01/2009CN101471731A Network system, optical line terminating apparatus, and optical network apparatus
07/01/2009CN101471730A Optical fiber wideband access system and optical network unit based on WDM structure
07/01/2009CN101471729A Device, method and system for measuring light power
07/01/2009CN100508430C Communicating structure between optical network and connecting setting method
07/01/2009CN100508429C Optical transmission system with low power consumption
06/2009
06/30/2009US7555228 Method and system for facilitating burst-mode optical power measurement
06/30/2009US7555227 Polarization compensation in a coherent optical receiver
06/30/2009US7555226 Automatic bias control for an optical modulator
06/30/2009US7555225 Optical system comprising an FM source and a spectral reshaping element
06/30/2009US7555224 Using superimposed ASK label in an all-optical label swapping system and method thereof
06/30/2009US7555223 UWB signal generator using optical FSK modulator
06/30/2009US7555222 Multiformat transmitter
06/30/2009US7555221 Method and apparatus for polarization-independent RF spectrum analysis of an optical source
06/30/2009US7555220 Chromatic dispersion compensator (CDC) in a photonic integrated circuit (PIC) chip and method of operation
06/30/2009US7555219 Bi-directional signal interface
06/30/2009US7555218 Optical transceiver having optical receiver with function to cancel noise originated to optical transmitter
06/30/2009US7555217 Multi wavelength electromagnetic device
06/30/2009US7555216 Optical communication system using optical frequency code, optical transmission device and optical reception device thereof, and reflection type optical communication device
06/30/2009US7555215 Optical wavelength division multiplexing access system
06/30/2009US7555214 Method of ethernet frame forward error correction initialization and auto-negotiation
06/30/2009US7555213 Preventing damage to optical components from optical time domain reflectometers
06/30/2009US7555191 Self-locking unidirectional interposer springs for optical transceiver modules
06/30/2009US7555061 Optical communication device
06/30/2009US7554721 Raman amplifier and Raman amplifier adjustment method
06/30/2009US7554720 Optical transmission apparatus with automatic gain control and automatic level control mode selection
06/30/2009US7554719 Fast dynamic gain control in an optical fiber amplifier
06/30/2009US7554718 Fast dynamic gain control in an optical fiber amplifier
06/30/2009US7554717 Optical transmission device equipped with pluggable variable optical attenuator
06/30/2009US7554083 Integration of electromagnetic detector on integrated chip
06/30/2009US7552872 Reader/writer, optical transceiver module, and cable system
06/30/2009CA2541838C Method and apparatus for testing optical networks
06/30/2009CA2437159C Integrated memory mapped controller circuit for fiber optics transceiver
06/26/2009CA2645392A1 Optical power for electronic circuits using a single photovoltaic component
06/25/2009WO2009079168A1 In-channel residual chromatic dispersion measurement
06/25/2009WO2009079167A1 High performance gigabit passive optical network
06/25/2009WO2009079166A1 Optical transceiver method and apparatus
06/25/2009WO2009078695A1 Modulator and demodulator for a differential optical modulation format with eight phase changes
06/25/2009WO2009078608A2 Optical network system for providing wireless broadband services
06/25/2009WO2009078572A1 Wavelength division multiplexing-passive optical network system
06/25/2009WO2009076912A1 Aggregation node device of passive optical network and the system thereof
06/25/2009WO2009076888A1 Optical transmission system, apparatus and method
06/25/2009WO2009076885A1 Method and node device of ethernet failure detecting and converging
06/25/2009WO2009076862A1 A method for primary and backup links protection in passive optical network and a ring-based system
06/25/2009WO2009076845A1 An optical access network data transmission method, and the system and the device thereof
06/25/2009WO2009076836A1 An optical relay system and method
06/25/2009WO2009076830A1 A receiving equipment, method of differential quadrature phase shift keying signal and an obtaining method
06/25/2009WO2009059331A3 Anticounterfeiting means for optical communication components
06/25/2009WO2009047428A3 Digital transmission of data in white light by leds
06/25/2009WO2009025687A8 Method and apparatus for transmitting optical signals
06/25/2009US20090164158 Optical system, optical module and threshold setting method
06/25/2009US20090162077 Precision timing pulse width communications systems and methods
06/25/2009US20090162076 Method and system for electrochemical impedance spectroscopy
06/25/2009US20090162075 Transmission system and transmission method
06/25/2009US20090162074 Wavelength dispersion compensation control method and wavelength dispersion compensation control device
06/25/2009US20090162071 Auto-Tracking System for Mobile Free-Space Optical (FSO) Communications
06/25/2009US20090162069 Apparatus and Method of Optical Communication
06/25/2009US20090162068 Polarization mode dispersion compensation circuit
06/25/2009US20090162067 Optical transmission device
06/25/2009US20090162062 Session initiation protocol (SIP) provisioning error detection for an optical network terminal (ONT)
06/25/2009US20090162059 Wavelength division multiplexing transmission system
06/25/2009US20090162055 Optical access system
06/25/2009US20090162054 Collection of data from an optical channel monitor without causing a malfunction of a transmission apparatus
06/25/2009US20090162053 PON system method for receiving optical signal and OLT
06/25/2009US20090162052 Latency measurement in optical networks
06/25/2009US20090162051 Wireless Tuning and Reconfiguration of Optoelectronic Modules
06/25/2009US20090162022 Optical transmission apparatus and method for controlling variable optical attenuator
06/25/2009US20090161706 Optical level control device, method for controlling same, and laser application device
06/25/2009US20090160365 Apparatus Having Supply Voltage Adaptive Light Emitting Component Circuitry And Method Of Controlling
06/25/2009DE102007059554A1 Verfahren zur Ermittlung der Taktrate eines von einem Teilnehmer eines Kommunikationssystems empfangenen Datensignals, aktiver Sternkoppler zur Ausführung des Verfahrens und Kommunikationssystem mit einem solchen aktiven Sternkoppler Method for determining the clock rate of a signal received from a subscriber of a communication system data signal, an active star coupler for performing the method and communication system comprising such an active star coupler
06/24/2009EP2073474A1 Method and apparatus for transmitting an optical signal using orthogonal frequency division multiplexing
06/24/2009EP2073408A1 Device for transmitting light signals and corresponding method
06/24/2009EP2073407A1 Machine with data transmission from one machine component to another machine component which is pivotable in relation to the first machine component
06/24/2009EP2073406A1 Machine with optical communication from one machine component to another machine component which is pivotable in relation to the first machine component
06/24/2009EP2073405A1 Radiation power equalizer
06/24/2009EP2073404A1 Method of optical free space data transmission and system to implement the method
06/24/2009EP2072011A1 Assembly made from two elements which are rotatable relative to one another
06/24/2009EP1989798B1 Sensing a disturbance
06/24/2009EP1905139B1 Multistage fibre amplifier and method for adapting a pump power of a multistage fibre amplifier
06/24/2009EP1661271B1 Method for starting lasers in a network