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)
04/2008
04/15/2008US7359432 Speed negotiation for serial transceivers
04/15/2008US7359408 Apparatus and method for measuring and compensating delay between main base station and remote base station interconnected by an optical cable
04/15/2008US7359112 Individual band gain equalizer for optical amplifiers
04/15/2008US7358854 Method and device to identify a periodic light source
04/15/2008US7357581 Fibre optic transceiver
04/15/2008CA2410137C Optical dynamic burst switch
04/10/2008WO2008042475A1 Method and apparatus for determining latch position for decision-feedback equalization using single-sided eye
04/10/2008WO2008040376A2 Method, apparatus and data carrier for compensating for channel depletion of a multi-channel signal in an optical link or optical network
04/10/2008WO2008040256A1 A user authentication method, apparatus and system for passive optical network
04/10/2008WO2008040142A1 A data transmission method, system and device
04/10/2008WO2008040053A1 Single sideband orthogonal frequency division multiplexed optical fibre transmission
04/10/2008WO2008010888A3 Automatic avalanche photodiode bias setting system based on unity-gain noise measurement
04/10/2008WO2007092924A3 Dispersion management in branched optical networks
04/10/2008US20080085128 Multi-stage method and system for coherent diffractive beam combining
04/10/2008US20080085127 Optical transmitter and optical transmission system
04/10/2008US20080085126 Optical Signal Shutoff Mechanism and Associated System
04/10/2008US20080085125 All-optical regenerator and optical network incorporating same
04/10/2008US20080085124 Clock generation with minimum number of crystals in a multimedia system
04/10/2008US20080085123 Optical switch based on parametric interaction
04/10/2008US20080085122 Optical Data Transmission, Optical Data Transceivers And Method Of Manufacturing And Packaging Thereof
04/10/2008US20080085121 Optical transponder for secure optical communications and optical quadrature-measuring instrument
04/10/2008US20080085120 Optical transceiver integratable with silicon vlsi
04/10/2008US20080085117 System and method for communicating optical signals between a data service provider and subscribers
04/10/2008US20080085115 Testing Optically Amplified Links With Time-Division Multiplexed Test Signals
04/10/2008US20080085114 Optical transmission line monitoring device, optical transmission line monitoring method, and computer program
04/10/2008US20080084605 Method and system for hybrid coherent and incoherent diffractive beam combining
04/10/2008US20080084596 Active Mirror for Power Beaming
04/10/2008DE102006045133A1 Anordnung zur Einstellung und Kompensation von Polarisationsmodendispersion ersten und zweiter Ordnung Arrangement for setting and compensation of polarization mode dispersion first and second order
04/10/2008DE102006044296A1 Optical signal burst receiving arrangement for e.g. passive-optical network, has high pass filter with coupling capacitor and ohmic resistors, where resistance value of high pass filter is varied to change time constant
04/10/2008DE102006030915B4 Optischer Empfänger für den Empfang eines Signales mit M-wertiger sternförmiger Quadratur-Amplitudenmodulation mit differenzieller Phasenkodierung und dessen Verwendung An optical receiver for the reception of a signal with m-valent stellate quadrature amplitude modulation with differential phase coding and the use thereof
04/10/2008DE102006023184B4 Signalqualitäts-Detektor und dessen Verwendung Signal quality detector and its use
04/10/2008DE102004035984B4 Verfahren und Anordnung zur optischen Halbduplex-Übertragung zwischen Profibus-Kabelsegmenten Method and apparatus for optical half-duplex transmission between Profibus cable segments
04/10/2008CA2632137A1 Method, apparatus and data carrier for compensating for channel depletion of a multi-channel signal in an optical link or optical network
04/09/2008EP1909414A1 Dynamic raman tilt compensation
04/09/2008EP1909413A1 Improved bandwidth limited PSBT system
04/09/2008EP1909412A1 Testing optically amplified links with time-division multiplexed test signals
04/09/2008EP1908308A2 Digital certificate on connectors and other products using rfid tags and/or labels as well as rfid reader/interrogator
04/09/2008EP1908194A2 Optical transmission system et device for receiving an optical signal
04/09/2008EP1908193A2 Bidirectional hdcp transmission module using single optical fiber
04/09/2008EP1908153A2 Raman amplifier structure
04/09/2008EP1533921B1 Digital optical receiving apparatus and method for monitoring the quality of a modulated optical transmission signal
04/09/2008EP1224756B1 Alternate phase modulation for non-soliton optical rz transmission
04/09/2008CN101160757A Common electronic dispersion compensation arrangement for use with multiple optical communication channels
04/09/2008CN101159844A Session television system with radio microphone and information processing method thereof
04/09/2008CN101159602A Method and device of controlling signaling communication network
04/09/2008CN101159598A Remote management method of passive optical network terminal equipment
04/09/2008CN101159572A Digital session discussing system
04/09/2008CN101159524A Automatic protection rearrangement checking method and device
04/09/2008CN101159507A Optical communication system, optical communication apparatus, and optical communication method thereof
04/09/2008CN101159506A PON communication channel balancing method, device and system
04/09/2008CN101159496A Device to generate return-to-zero optical duo-binary system modulating signal
04/09/2008CN101159495A Signal transmission system and method in passive optical fiber network
04/09/2008CN101159494A Service protecting method for automatic exchange optical network
04/09/2008CN101159493A Testing optically amplified links with time-division multiplexed test signals
04/09/2008CN101159492A Simulation checking system and its method for SDH logical design
04/09/2008CN101159491A Uplink time slot collision detection method and optical line terminal of passive optical network
04/09/2008CN101159490A SFP self-loop light device
04/09/2008CN101159489A Installation apparatus of optical transmission module
04/09/2008CN101158796A EDFA transient state inhibition method and system
04/09/2008CN101158732A Light transmit-receive integrated module self-cycle realizing device
04/09/2008CN100380963C System and method of providing integrated communications and broadcasting service
04/09/2008CN100380855C Light wavelength-multiplexing systems
04/09/2008CN100380852C Dispersion-managed cable for raman-assisted transmission
04/09/2008CN100380851C Method and device for crosstalk reduction in a bidirectional optical link
04/09/2008CN100380850C Agile multi-beam free-space optical communication apparatus
04/09/2008CN100380149C Dispersion compensated optical fibre and dispersion compensated optical fibre module
04/08/2008US7356264 Chirp managed laser with electronic pre-distortion
04/08/2008US7356263 Signal processor for converting signal
04/08/2008US7356262 Time division multiplexing of analog signals in an optical transceiver
04/08/2008US7356261 Optical wireless communications system
04/08/2008US7356260 Residential signal beacon
04/08/2008US7356258 Optical interconnection for traffic between a pair of DWDM rings
04/08/2008US7356257 Optical switching apparatus and optical communication network system
04/08/2008US7356256 Digital performance monitoring for an optical communications system
04/08/2008US7356222 Wavelength selective optical device and method of tuning a wavelength characteristic of the same
04/08/2008US7356220 Apparatus and method for reducing signal noise and OCDMA receiver and method
04/08/2008US7355982 Subscriber line terminal device and loopback test method
04/08/2008US7355979 Communication network, path setting method, network management system and node
04/08/2008US7355966 Method and system for minimizing disruption in common-access networks
04/08/2008US7355964 Systems for contention-based bandwidth requests in orthogonal frequency division multiplexing systems
04/08/2008US7355963 Tone allocation in multipoint-to-point communication using orthgonal frequency division multiplexing
04/08/2008US7355787 Optical transmission system and optical filter assembly for submarine applications
04/08/2008US7355786 Raman amplifying device and raman amplifying system
04/08/2008CA2483237C Optical digital-to-analog converter
04/08/2008CA2223070C Optical cable with tubular metal core
04/03/2008WO2008039575A1 Method and apparatus for non-linear decision-feedback equalization in the presence of asymmetric channel
04/03/2008WO2008039014A1 Dynamic bandwidth allocation device for an optical network and method thereof
04/03/2008WO2008038981A1 Automatic optical power control method for olt in pon
04/03/2008WO2008038337A1 Optical electric field receiver and optical transmission system
04/03/2008WO2008037653A1 A method, communication system and central communication unit for detecting a faulty peripheral communication unit
04/03/2008WO2008037624A1 Arrangement for the adjustment and compensation of polarization mode dispersion of the first and second orders
04/03/2008WO2008037621A1 Method for determining the optical signal-to-noise ratio and receiver device for an optical transmission system
04/03/2008WO2008037573A2 Transceivers with an insertion counter
04/03/2008WO2008037462A1 Demarcation devices, network and method
04/03/2008WO2008037178A1 The optical network unit and its accessing method, the optical line terminal and the passive optical network system
04/03/2008WO2008037124A1 A route query method in ason
04/03/2008WO2008002950A3 Uplink power adjustment for a cable modem termination system
04/03/2008WO2007092765A3 Managing gain tilt in an optically amplified transmission system
04/03/2008WO2007067631A3 Skew correction system eliminating phase ambiguity by using reference multiplication
04/03/2008WO2007067608A3 Average time extraction circuit for eliminating clock skew