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Optical communications

20130148956 - Equalization delay agnostic protection switching in protected passive optical networks: Systems, methods and apparatus for operating an optical network terminal (ONT) in a passive optical network include maintaining an operational state in the passive optical network, estimating an upstream channel, adjusting equalization delay and physical layer frame offset values and switching from a backup mode to a primary mode of... Agent: Zte Corporation

20130148957 - Fiber optic telecommunications card with security detection: A transceiver card for a telecommunications box for transmitting data over a first optical fiber and receiving data over a second optical fiber. The card has transmitter for transmitting data over the first optical fiber, the transmitter having a laser and a modulator, a fiber output optically connected to the... Agent: Tq Gamma, LLC

20130148958 - Method and optical line terminal for optical fiber fault diagnosis in passive optical network: A method for performing optical fiber fault diagnosis in a passive optical network is disclosed in the present invention. The method includes: after receiving an optical fiber fault diagnosis message, a receiving module of an optical line terminal triggering a test module (S10); after triggered by the receiving module, the... Agent: Zte Corporation

20130148959 - Fiber optic telecommunications card with security detection: A transceiver card for a telecommunications box for transmitting data over a first optical fiber and receiving data over a second optical fiber. The card has transmitter for transmitting data over the first optical fiber, the transmitter having a laser and a modulator, a fiber output optically connected to the... Agent: Tq Gamma, LLC

20130148960 - Modular kit of devices for variable distribution, mixing and monitoring of optical signals in the internet and other networks: Modular kit of devices for variable distribution, mixing and monitoring of optical signals in the Internet and other networks is formed by an optical module interconnected with a control electronic module of the electronic system with two redundant power supply sources, which is subsequently interconnected with the communication computer module... Agent: Cesnet, Zajmove Sdruzeni Pravnickych Osob

20130148961 - Wavelength division multiplexing transmission device: A transmitter to be added or reduced turns ON/OFF an optical output. A relay station and a receiving terminal station acquire the amount of fluctuation of the optical output of the received signal light when the optical output of the added transmitter is turned ON and OFF. From the amount... Agent: Fujitsu Limited

20130148962 - Methods, apparatuses, and systems for monitoring signal strength in an optical network: An optical transceiver, optical network and methods for using the same are disclosed. The optical transceiver and/or optical network and related methods may be useful for independently monitoring the optical transceiver and/or optical network. The optical transceiver generally includes an optical receiver configured to receive optical information; circuitry configured to... Agent:

20130148963 - Dynamic multidimensional optical networking based on spatial and spectral processing: An optical network includes a multidimensional coder and modulator for handling multiple-in-multiple-out MIMO spatial lightpath properties and content of any specific supercarrier, a spatial mode multiplexer responsive to orthogonal frequency division multiplexing OFDM transmissions and the multidimensional coder, a spatial-spectral routing node coupled over a fiber link to the spatial... Agent: Nec Laboratories America, Inc.

20130148964 - Method for switching an optical data stream, computer program product and corresponding storage means and node: A method and apparatus for switching an optical data stream via an optical network node, capable of switching optical data received at input ports to output ports. The method includes the following steps performed by a processing chain upon detection of a stream at a given wavelength by a given... Agent: France Telecom

20130148967 - Distortion compensator, optical receiver, distortion compensator and optical receiver controlling methods, and optical transmission system: A distortion compensator, an optical receiver and a transmission system including an operation selectively compensating for linear waveform distortion exerted on an optical signal via a plurality of distortion compensators and compensating for nonlinear waveform distortion exerted on the optical signal using nonlinear distortion compensators.... Agent: Fujitsu Limited

20130148965 - Multiprotocol transport using polarization division multiplexing: Using polarization modulation techniques to simultaneously transmit two different data streams (formatted according to two different protocols) over a single optical wavelength. A first data stream that is encapsulated for transport using a first transport protocol, and a second data stream that is encapsulated for transport using a second transport... Agent: Cisco Technology, Inc.

20130148966 - Optical module having a plurality of optical sources: An optical module that outputs a wavelength multiplexed optical signal is disclosed. The optical module provides at least first to third optical source, a wavelength multiplexer, a polarization rotator, and a polarization multiplexer. The optical sources each outputting first to third optical signals with a wavelength different from others. The... Agent: Sumitomo Electric Industries, Ltd.

20130148968 - Station-side apparatus and pon system: An OLT, which is a station-side apparatus in a PON system, is connected to an ONU via an optical fiber. The OLT includes: an optical receiver which receives a burst signal from an ONU; a burst header detection unit which detects a certain delimiter pattern included in a received burst... Agent: Fujitsu Telecom Networks Limited

20130148971 - Direct detection of optical orthogonal frequency division multiplexing (ofdm) signals: Techniques for timing synchronization in an optical orthogonal frequency division multiplexing (OOFDM) system includes providing a time-domain training symbol having a symmetric distribution and producing the training symbol by transmitting a real-valued PN sequence on each subcarrier under the OOFDM. The training sequence includes an initial value, followed by an... Agent: Zte (usa) Inc.

20130148969 - Optical transceiver system: An optical transceiver system includes a transmitter transmitting out a first light beam with a first wavelength, a receiver receiving a second light beam with a second wavelength; an optical fiber transmitting the first light beam and the second light beam; and a light guide member. The light guide member... Agent: Hon Hai Precision Industry Co., Ltd.

20130148970 - Receiver optical module for receiving wavelength multiplexed optical signals and method to assemble the same: A receiver optical module to facilitate the assembling is disclosed. The receiver optical module includes an intermediate assembly including the optical de-multiplexer and the optical reflector each mounted on the upper base, and the lens and the PD mounted on the sub-mount. The latter assembly is mounted on the bottom... Agent: Sumitomo Electric Industries, Ltd.

20130148972 - Passive optical network system, optical line terminal, and optical network unit: An optical line terminal includes the transmission rate control table for storing a minimum bandwidth for an emergency status for each of optical network units in addition to a maximum assigned bandwidth in a normal status. When a decrease in a supply power is detected, the optical line terminal calculates... Agent: Hitachi, Ltd.

20130148973 - Transceiver and interface for ic package: An interconnect system including a host circuit board; an IC package connected to the host circuit board and including a first connector, an IC circuit board, and an IC die; and a transceiver arranged to mate with the first connector so that at least some electrical signals transmitted to and... Agent: Samtec, Inc.

20130148974 - Computer and computer data transmission system: A computer data transmission system includes a CPU, a photoelectrical conversion module electrically connected to the CPU, a plurality of I/O interface cards, and a plurality of first optical fibers. The photoelectrical conversion module includes a plurality of photoelectrical conversion units. Each I/O interface card includes at least one photoelectrical... Agent: Hon Hai Precision Industry Co., Ltd.

20130148975 - Multichannel transmitter optical module: Provided is a multichannel transmitter optical module which includes a plurality of light source units configured to generate light, a plurality of an electro-absorption modulators (EAMs) configured to modulate the generated light to an optical signal through a radio frequency (RF) signal, a plurality of RF transmission lines configured to... Agent: Electronics And Telecommunications Research Institute

20130148976 - Systems and methods for using active optical cable segments: First and second active optical modules that terminate first and second active optical cable segments, each of which having a respective active end and a respective passive end, can be authenticated by: reading information from active-end storage devices attached to the respective active ends of the first and second active... Agent: Adc Telecommunications, Inc.

20130148977 - Optical transceiver having an extra area in circuit board for mounting electronic circuits: An optical transceiver of one embodiment includes a transmitter optical subassembly to transmit an optical signal, a receiver optical subassembly to receive an optical signal, a mother board, a daughter board, and a housing. The mother board mounts electronic circuits that electrically communicate with the optical transmitter optical subassembly and... Agent: Sumitomo Electric Industries, Ltd.

20130148978 - Chip identification pads for identification of integrated circuits in an assembly: Chip identification pads for identification of integrated circuits in an assembly. In one example embodiment, an integrated circuit (IC) assembly includes a controller, a plurality of ICs, a shared communication bus connecting the controller to the plurality of ICs and configured to enable communication between the controller and each of... Agent: Finisar Corporation

20130148979 - Optical transceiver device: An optical transceiver device includes a transmitter, a first and a second optical circulators and a receiver. The transmitter transmits a light signal uploaded with an electrical signal. The first and second optical circulators each include three ports. The second port of the second optical circulator is configured for transmitting... Agent: Hon Hai Precision Industry Co., Ltd.

20130148980 - Method and system for color-shift keying using algorithms: A system and method for optimizing signal recognition in a light communication system by approximately maximizing the minimum distance between received constellation points; the method comprising identifying the constellation region containing points for transmitting symbols, identifying channel impairments, transforming the constellation region according to the channel impairments into a constellation... Agent: U.s. Army Research Laboratory Attn: Rdrl-loc-i

20130148982 - Chip-based advanced modulation format transmitter: In various embodiments, a monolithic integrated transmitter, comprising an on-chip laser source and a modulator structure capable of generating advanced modulation format signals based on amplitude and phase modulation are described.... Agent: Freedom Photonics, LLC.

20130148981 - Optical transmitter: After a startup of an optical transmitter, a control is started in such a way that a modulation amplitude of a driving signal of a phase modulator is set as 0, and that an operational point of a bias voltage is set as the lowest point of light transmission characteristics... Agent: Fujitsu Optical Components Limited

20130148983 - Modulator for frequency-shift keying of optical signals: Described are an FSK modulator and a method for large-alphabet FSK modulation. The FSK modulator and the method are based on filtering of a multi-tone optical source such as a mode-locked laser which provides a comb distribution of tones. A frequency-selective component selects for transmission a subset of the tones.... Agent: Massachusetts Institute Of Technology

20130148984 - Modular device for an optical communication module: A modular device for an optical communication module configured to be coupled to an optical transmission medium. The modular device may include a first edge and a second edge and N number of electrical circuit channels between the first and second edges. Each electrical circuit channel may include at least... Agent: Finisar Corporation

20130148985 - Monolithic widely-tunable coherent receiver: Various embodiments of a coherent receiver including a widely tunable local oscillator laser are described herein. In some embodiments, the coherent receiver can be integrated with waveguides, optical splitters and detectors to form a monolithic optical hetero/homodyne receiver. In some embodiments, the coherent receiver can demodulate the full phase information... Agent: Freedom Photonics, LLC.

20130142506 - Closed loop optical modulation amplitude control: Systems and methods are provided for an optical modulation feedback circuit. The feedback circuit includes a low frequency comparison circuit configured to receive a monitoring signal generated by an optical detector, the monitoring signal being proportional to an amount of light generated by an optical transmission device that transmits based... Agent:

20130142507 - Pdl compensator optical device, and pdl compensation method: A PDL compensation technique is provided that reduces the number of and the number of types of the PDL compensators even if it is uncertain to determine which of the two polarization principal axes of an optical device has a larger loss. The PDL compensator according to the present invention... Agent: Hitachi, Ltd.

20130142508 - Configuring a path in an optical communications network: A method of configuring a path between an ingress node and an egress node in an optical communications network, the path comprising a first hop and a subsequent hop. The method includes: a) selecting a candidate hop for the first hop of the path; b) obtaining a value of a... Agent: Telefonaktiebolaget L M Ericsson (publ)

20130142509 - Optical transport network line management system and methods: An Optical Transport Network (OTN) mode management system includes a controller communicatively coupled to at least one OTN port. The controller is configured to operate an OTN line Optical channel Data Unit level k (ODUk) mode management system for the at least one OTN port, and the OTN line ODUk... Agent: Ciena Corporation

20130142510 - Apparatus and method for improved distributed compensation of filtering effects mitigation in an optical network: The present disclosure describes a reconfigurable optical add-drop multiplexer. The reconfigurable optical add-drop multiplexer includes a first optical equalizer to precompensate a received optical signal for optical filtering effects to produce a first compensated optical signal. A first interleaver, coupled to the first optical equalizer, separates the first compensated optical... Agent: At&t Intellectual Property I, L.p.

20130142511 - Automatic configuration of packet network services over dense wavelength division multiplex communication links using optical transport network frames: Techniques are provided to automatically configure packet based network services over Dense Wavelength Division Multiplex (DWDM) network communication links. An optical wavelength is detected at an optical interface of a network device configured to send traffic between a packet switched network and an optical network. A message is sent to... Agent: Cisco Technology, Inc.

20130142513 - Apparatus and method for reducing traffic on a unified optical and coaxial network: A coaxial line terminal (CLT) comprising an optical port configured to couple to an optical line terminal (OLT) via an optical distribution network (ODN), an electrical port configured to couple to a coaxial network unit (CNU) via an electrical distribution network, and a processor coupled to the optical port and... Agent: Futurewei Technologies, Inc.

20130142514 - Apparatus and method of identifying a transit node in a unified optical-coaxial network: An optical line terminal (OLT) comprising a processor configured to assign a logical node identifier (LNID) to a coaxial line terminal (CLT), wherein the CLT intermediates between the OLT via an optical portion of a unified optical-coaxial network and a coaxial network unit (CNU) via an electrical network portion of... Agent: Futurewei Technologies, Inc.

20130142512 - Self-seeded colorless burst-mode transmitter using reflective semiconductor optical amplifier and injection-locked fabry-perot laser: An apparatus comprises an optical port; a first optical transmitter; a second optical transmitter; a partially reflective mirror positioned between the first optical transmitter, the second optical transmitter, and the optical port; and an optical rotator positioned between the partially reflective minor and the first optical transmitter.... Agent: Futurewei Technologies, Inc.

20130142515 - Apparatus and method for registering a coaxial network unit on an optical network: A method comprising receiving a coaxial network unit (CNU) registration request from a CNU via a coaxial portion of a network, wherein the registration request is addressed to an optical line terminal (OLT), and forwarding the CNU registration request to the OLT via an optical portion of the network. Included... Agent: Futurewei Technologies, Inc

20130142516 - Apparatus and method for distributed compensation of narrow optical filtering effects in an optical network: The present disclosure describes a reconfigurable optical add-drop multiplexer including a wavelength selective switch configured to filter wavelengths of an optical signal; and an optical equalizer, coupled to the wavelength selective switch, configured to equalize the optical signal to mitigate optical filtering effects caused by the wavelength selective switch.... Agent: At&t Intellectual Property I, L.p.

20130142517 - Controllable optical add/drop multiplexer: The invention relates to a method for operating a controllable selective optical add/drop channel for a fiber-optic communication system provided with 2N of wavelength-division multiplexing channels, whose optical frequencies are returnable at a constant frequency separations Δv between adjacent channels, with the aid of the inventive controllable optical add/drop multiplexers... Agent: Miniterstve Yustitsii Rossiiskoi Federatsii (federal State Institution " Federalagency For

20130142518 - Optical transmission module: An optical transmission module includes an optical transmitting unit and an optical receiving unit. The optical transmitting unit includes a first laser diode and a second laser diode. The optical receiving unit includes a first photo diode and a second photo diode, in which the second photo diode is electrically... Agent: Hon Hai Precision Industry Co., Ltd.

20130142519 - Optical microphone: An optical microphone includes: a propagation medium portion; a light source to output a light wave passing through the propagation medium portion across the acoustic wave propagating through the propagation medium portion; a reflecting section to retroreflect the light wave having passed through the propagation medium portion; and a photoelectric... Agent: Panasonic Corporation

20130142520 - Anti-causal pre-emphasis for high speed optical transmission: When a high data rate optical signal travels through a fiber link, its high frequency components tend to experience higher losses due to fiber dispersion (modal and/or chromatic). The loss of high frequency components causes the optical eye to close and the sensitivity to degrade. Disclosed is an apparatus and... Agent:

20130142521 - Electro-optical single-sideband modulator: an electrode structure formed on the substrate to receive an input electrical modulating signal having an associated electrical frequency and electrical propagation constant, and to responsively apply an electrical field to the bimodal optical waveguide structure.... Agent: Selex Sistemi Integrati S.p.a.

20130142522 - Differential circuit compensated with self-heating effect of active device: A differential circuit with a function to compensate unevenness observed in the differential gain thereof is disclosed. The differential circuit provides a low-pass filter in one of the paired transistors not receiving the input signal in addition to another low-pass filter that provides an average of output signals as a... Agent: Sumitomo Electric Industries, Ltd.

20130136445 - Optical transceiver performance monitoring and alarming systems and methods: Performance monitoring (PM); optical layer operations, administration, maintenance, and provisioning (OAM&P); and alarming are provided in optical transceivers, such as multi-source agreement (MSA)-defined modules. The present disclosure provides an optical transceiver defined by an MSA agreement with integrated PM and alarming for carrier-grade operation. The integration preserves the existing MSA... Agent: Menara Networks, Inc.

20130136446 - Virtualized optical transport network systems and methods: The present disclosure provides an optical transceiver, method of mapping, and method of management utilizing a plurality of Optical Channel Transport Unit layer k (OTUk) links to form an aggregate signal, such as, for example, 10 OTU2s to provide a single 100 Gigabit Ethernet (100 GbE) signal. Specifically, the present... Agent: Menara Networks, Inc.

20130136447 - Optical access network: An optical access network comprises L wavelength division multiplexed access sub-networks. Each of the wavelength division multiplexed access sub-networks is arranged to use a set of wavelength channels. M optical line termination apparatus, each receive traffic from a respective operator network and output traffic on the wavelength channels. A wavelength... Agent: Telefonaktiebolaget L M Ericsson (publ)

20130136448 - Meshed protected passive optical access network structure and optical network unit structure therefore: Provided is an optical network system and optical network unit (ONU) structure enabling a passive optical access network having a meshed structure with at least two central nodes and plurality of ONUs. One embodiment employs a partially or fully meshed structure of optical fibers between customer locations and multiple optical... Agent: Adva Optical Networking Se

20130136449 - Communication through multiplexed one-dimensional optical signals: An example apparatus comprises an optical transmitter which includes a first processor and at least two optical modulators. The first processor is configured to generate a first electronic representation for each of at least two optical signals for carrying payload data modulated according to a one-dimensional (1-D) modulation format, and... Agent:

20130136451 - Optical transfer system, optical transmission device, and optical reception device: In an optical transfer system, an optical transmission unit generates an optical signal in which respective polarization components are alternately present on a time axis, a time period during which the respective polarization components are simultaneously present on the time axis is substantially zero, and a symbol repetition cycle of... Agent: Mitsubishi Electric Corporation

20130136450 - Signal equalizer in a coherent optical receiver: A signal equaliser for compensating impairments of an optical signal received through a link of a high speed optical communications network. At least one set of compensation vectors are computed for compensating at least two distinct types of impairments. A frequency domain processor is coupled to receive respective raw multi-bit... Agent: Ciena Corporation

20130136452 - Time-domain based composite modulation for spectrally efficient optical networks: Methods, systems, and apparatuses for time-based composite modulation of an optical carrier signal are provided. Time-based composite modulation includes determining a plurality of fixed time slots for the optical carrier signal, wherein the plurality of fixed time slots comprise a time-division-multiplexing frame. Determining a modulation format for each fixed time... Agent: At&t Intellectual Property I, Lp

20130136453 - Visible light communication method and visible light communication system: A simple visible light communication method and system that, underwater in an ordinary water-quality in which a diver is allowed to go under the water, are able to reliably communicate with a ship, or the like, above water while the diver is stopping at a safety stop position at a... Agent: Marine Comms Ryukyu, Inc

20130136454 - Light emitting diode light source: An LED light source comprises a light source plate, a supporting frame, a transceiver module, a driving element and a secondary optical element. The light source plate comprises a first circuit board and a plurality of light emitting elements. The supporting frame comprises a pillar portion. The transceiver module comprises... Agent:

20130136455 - Programming a universal remote control: A method of programming a Universal Remote Control is described. A user is requested to execute a command sequence comprising more than one command from an original Remote Control for controlling a device (306). The commands from said sequence are captured and analyzed (308). The analyzed commands are matched with... Agent: Koninklijke Philips Electronics N.v.

20130136456 - Mobile terminal capable of localization, localization server and method for localizing the mobile terminal using the localization server: A mobile terminal capable of localization, a localization server, and a method for localizing the mobile terminal using the localization server are disclosed. The disclosed localization server includes a control unit configured to control transmissions of visible-light signals from a multiple number of visible-light transmitting devices; and a position computing... Agent: Foundation Of Soongsil University-industry Cooperation

20130136457 - Wireless light communication system and wireless light communication method using the same: A wireless light communication system and method using a plurality of light transmitting units driven by a same alternating current (AC) power, and a light receiving unit for receiving optical signals transmitted by the plurality of light transmitting units are provided. The wireless light communication method includes setting a channel... Agent: Samsung Electronics Co., Ltd.

20130136458 - Optical transceiver having enhanced emi tolerance: An optical transceiver that attenuates the EMI radiation leaked therefrom is disclosed. The optical transceiver includes a top cover and the bottom base to form a cavity into which a TOSA, a ROSA, and a circuit are set. At least one of the top cover and the bottom base provides... Agent: Sumitomo Electric Industries, Ltd.

20130129340 - Dual optical electrical conversion module: In an embodiment, a dual optical-electrical conversion (DOEC) module is described that includes an optical host interface, an optical network interface, and an integrated circuit. The optical host interface includes an optical transmitter and an optical receiver. The optical network interface includes an optical transmitter and an optical receiver. The... Agent: Finisar Corporation

20130129342 - Optical safety implementation in protection switching modules: Optical safety functions are incorporated into protection switching modules which maintain redundant pathways to avoid interruptions in optical network connections. The optical safety functions which lower optical power levels upon interruptions of optical connections are effectively combined with protection switching procedures which are also triggered by interruptions in optical network... Agent: Cisco Technology, Inc.

20130129341 - Wireless communications links: A wireless communications link comprising an RF link and a free space optics (FSO) link, a switch, an RF signal monitoring apparatus, an optical signal monitoring apparatus, alarm apparatus and a controller. The switch operates in a normal mode to aggregate the links to form a link aggregation group and... Agent: Telefonaktiebolaget L M Ericsson (publ)

20130129343 - System and method using fault injection into line monitoring system baselines: A system and method for establishing new line monitoring system (LMS) baseline data compared to which faults are identified in a line monitoring system of an optical communication system. The new LMS baseline is established by injecting fault signature data associated with previous unrepaired faults into LMS current measurement loop... Agent: Tyco Electronics Subsea Communications LLC

20130129344 - Apparatus, system and method for network monitoring: Systems, methods, and devices are disclosed for monitoring optical communications between a managed location and a remote location. In particular, an optical signal is transmitted over an optical fiber and passed-through a test device. A portion of the optical signal is filtered from the original optical signal and passed to... Agent: Level 3 Communictions, LLC

20130129347 - Apparatus and method for measuring a delay: An apparatus and method for measuring a delay. The apparatus for measuring a delay includes an overhead inserting unit configured to inserting a time stamp into an overhead of a multiframe to be transmitted from a first location to a second location; an overhead extracting unit configured to extract a... Agent: Electronics And Telecommunications Research Instit

20130129345 - Optical transport network synchronization and timestamping systems and methods: The present disclosure provides to Optical Transport Network (OTN_ synchronization systems and methods that maintain proper sequential ordering of events at nodes which may be utilized in performing root cause analysis or diagnosing network performance. In an exemplary embodiment, the systems and methods utilize functionality incorporated into OTN providing a... Agent: Ciena Corporation

20130129346 - Transporting data and auxiliary signals over an optical link: A data transport system for transporting data and auxiliary signals over an optical link comprises a transmitter, a receiver and an optical link. The transmitter and receiver are coupled to a first end of the optical link. The optical link includes a number of optical channels. A controller is coupled... Agent:

20130129348 - Subcarrier power balance control: A method of controlling a multiple sub-carrier optical channel of an optical communications system. The multiple sub-carrier optical channel includes at least two sub-carriers modulated with respective sub-channel data streams within a spectral range allocated to a single optical channel of the optical communications system. A transmitter modem of the... Agent: Ciena Corporation

20130129349 - Wavelength sensing lighting system and associated methods for national security application: A wavelength sensing lighting system may include a light source, a sensor and a controller. One or more light sources and sensors may be included in an array. The light source may emit an illuminating light and the sensor may sense an environmental light. The illuminating light may include data... Agent: Lighting Science Group Corporation

20130129350 - Service and application layer optimization using variable rate optical transmission: Apparatus and methods are provided for application layer optimization in a modern data network. The optimization incorporates variable rate transmission across one or more optical data channels. Data throughput is maximized by enabling quality of service profiles on a per transmission channel basis. According to one aspect, a system is... Agent: Google Inc.

20130129351 - Encoding of wavelength converter systems: An apparatus comprising a path computation element (PCE) configured to perform a path computation using a wavelength converter (WC) pool information based on a dynamic WC pool model, wherein the dynamic WC pool model comprises information regarding WC pool usage state represented using a WC pool usage state vector, and... Agent: Futurewei Technologies, Inc.

20130129354 - Logical-link management method and communication device: A logical-link management method to be executed in an optical communication system including a station side device (OLT) and a subscriber side device (ONU) that is capable of setting a plurality of logical links together with the OLT, in which the OLT transmits a signal for managing the ONU via... Agent: Mitsubishi Electric Corporation

20130129353 - Signal transmission processing method and apparatus and distributed base station: The disclosures provide a method and apparatus for transmitting and receiving interface signals of a distributed base station. At least one channel of Common Public Radio Interface (CPRI) signals of a distributed base station are encapsulated into optical transport unit x (OTUx) signals in a frame structure of OTUx by... Agent: Huawei Technologies Co., Ltd.

20130129352 - System and method for second order multi-layer traffic grooming for optical network optimization: A method includes forming a set of direct connections (including a high-speed connection and a low-speed connection) between an origination central office (OCO) and a destination central office (DCO). The method includes forming a spoke connection between the OCO and a hub node and forming a connection between the hub... Agent: At & T Intellectual Property I, L.p.

20130129355 - Optical wavelength division node: An optical wavelength division node includes an optical splitter, a plurality of optical circulators, and a colorless light source module. The optical splitter receives and splits a downstream signal light source into a first-path and a second-path signal light source. The optical circulator in a first-order position receives and transmits... Agent:

20130129356 - Optical communication system: An optical communication system includes an optical-signal transmission unit transmitting an existing optical signal and a low-rate-signal superimposition unit superimposing a low-rate signal on the existing optical signal by intensity modulation. It further includes: a low-rate-signal extraction unit that extracts the low-rate signal from the existing optical signal on which... Agent: Mitsubishi Electric Corporation

20130129357 - Apparatus, system, and method for controlled infrared illuminator: An apparatus for a controlled infrared illuminator includes an unmanned aerial system capable of sustained flight and an infrared light source coupled to the unmanned aerial system by attachment means. The infrared light source includes a plurality of laser diodes arranged in a pattern. The apparatus also includes a remote... Agent: Design Criteria, Inc.

20130129358 - Terminal apparatus for auto pairing, remote control apparatus and method thereof: A terminal apparatus for auto pairing and a remote control apparatus and method thereof are provided. The terminal apparatus includes an IR receiving unit configured to receive an IR signal including first identification information of an external apparatus from the external apparatus, a radio frequency (RF) communication unit configured to... Agent: Samsung Electronics Co., Ltd.

20130129359 - Transporting data and auxiliary signals over an optical link: A data transport system for transporting data and auxiliary signals over an optical link comprises a transmitter, a receiver and an optical link. The transmitter and receiver are coupled to a first end of the optical link. The optical link includes a number of optical channels. A controller is coupled... Agent:

20130129360 - Transporting data and auxiliary signals over an optical link: A data transport system for transporting data and auxiliary signals over an optical link comprises a transmitter, a receiver and an optical link. The transmitter and receiver are coupled to a first end of the optical link. The optical link includes a number of optical channels. A controller is coupled... Agent:

20130129361 - Optical transmitter module and transmitting method: An optical transmitter module includes at least one light source, at least one optical modulator aligned to the at least one light source one by one, a first light interleaver, and at least one optical fiber. Each light source emits a light wave with a particular wavelength. Each optical modulator... Agent: Hon Hai Precision Industry Co., Ltd.