Optical communications patents - Monitor Patents
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Optical communications

Below are recently published patent applications awaiting approval from the USPTO. Recent week's RSS XML file available below.
Listing for abstract view: USPTO application #, Title, Abstract excerpt,Patent Agent. Listing format for list view: USPTO National Class full category number, title of the patent application.
  
11/13/2014 > 22 patent applications in 20 patent subcategories.

20140334811 - Apparatus and method for conserving power in a passive optical network: An apparatus and method for cost-effectively conserving power in a PON. Protection ports, usually on a protection LT card, are configured to communicate with a selectable one of the downstream ODN splitter/combiners associated with the primary ports on the remaining LT cards of the OLT. Each protection port includes at... Agent: Alcatel Lucent

20140334812 - Wavelength multiplexing optical communication device: A wavelength multiplexing optical communication device includes: a pluggable LD module that generates a check optical signal having a specific wavelength; a multiplexer that multiplexes the check optical signal onto the transmitting-side optical fiber which links the transmitting-side connector with a corresponding output port of the optical demultiplexer, the transmitting-side... Agent: Mitsubishi Electric Corporation

20140334813 - Channel validation in optical networks using multi-channel impairment evaluation: In an optical communication network that includes a plurality of interconnected network nodes, a method includes storing in each network node, and for each communication channel that traverses the node, one or more impairment margins of respective impairments that affect the communication channel. A potential communication channel that traverses a... Agent:

20140334814 - Adaptive optical amplifier for wdm systems: An optical amplifier that uses software-defined optical networking (SDON) technology, with a centralized controller and flexible physical hardware (the adaptive amplifier here) to optimize the power distribution among different WDM channels in the amplifier. It considers the detailed information for each channel through the information from centralized controller. It is... Agent: Nec Laboratories America, Inc.

20140334815 - System and method for selecting an optical path in an optical network: The invention proposes a system and method for selecting an optimal optical path through which to transmit an optical signal, the optimal optical path is one of a plurality of optical paths in a transparent optical network. Each of the plurality of optical paths includes a plurality of optical elements.... Agent:

20140334816 - Method, apparatus, and system for processing data on otn optical transport network: A method for processing data on an OTN optical transport network is disclosed in embodiments of the present invention, including: receiving and buffering, through an ILK interface, an Ethernet data frame sent by an Ethernet board; encapsulating the Ethernet data frame into a Generic Framing Procedure GFP data frame; and... Agent: Huawei Technologies Co., Ltd.

20140334817 - Network specific routing and wavelength assignment for optical communications networks: To facilitate routing and wavelength assignment (RWA) in an optical communications network having a given topology of associated nodes and links, a set of system characteristics associated with operating the optical communications network may be determined. Different sets of values may be selected for one or more parameters of an... Agent:

20140334820 - Method and system for configuring a connection-oriented packet network over a wavelength division multiplexed optical network: A network planning tool and method for configuring a connection-oriented packet network over a WDM optical network without an optical control layer, such as a SONET/SDH layer. The optical network includes a plurality of optical fibers interconnected through nodes and the connection-oriented packet network, such an Ethernet network, MPLS network,... Agent:

20140334818 - System and method for photonic switching: In one embodiment, a photonic switching fabric includes a first label detector configured to read a first optical label to produce a first detected label, where the first optical label corresponds to a first optical packet, and where the first optical label is in a control waveband and a switch... Agent: Futurewei Technologies, Inc.

20140334819 - System and method for photonic switching: In one embodiment, method of wrapping photonic packets includes receiving, by a node, a first packet and receiving, by the node, a second packet. The method also includes concatenating the first packet and the second packet to produce a concatenated frame, where concatenating the first packet and the second packet... Agent: Futurewei Technologies, Inc.

20140334821 - System and method for photonic switching: In one embodiment, a method of photonic frame scheduling includes receiving, by a photonic switching fabric from a top of rack (TOR) switch, a frame request requesting a time slot for switching an optical frame to an output port of a photonic switch of the photonic switching fabric and determining... Agent: Futurewei Technologies, Inc.

20140334822 - Auto-configuration of demarcation devices in ethernet passive optical network: Systems, devices and techniques for automatically configuring a Demarcation device in a communication network based on DOCSIS provisioning over EPON. A method can be implemented to include initializing a Demarcation device and an optical network unit device (ONU) that is connected to the Demarcation device; operating the Demarcation device to... Agent: Zte Corporation

20140334823 - Wavelength and bandwidth allocation method: A wavelength and bandwidth allocation method which includes in order a wavelength determination step S4 of determining a plurality of wavelengths of an uplink signal from each ONU to OLT to guarantee a guaranteed bandwidth corresponding to a subscription service class of each ONU and a reference bandwidth distribution step... Agent:

20140334824 - Fiber optic receiver, transmitter, and transceiver systems and methods of operating the same: A fiber optic receiver system is provided. The fiber optic receiver system includes: (1) a host node including an optical source for transmitting an optical signal; (2) a remote node away from the host node for receiving the optical signal, the remote node including a radio frequency receiver, the remote... Agent: Us Seismic Systems, Inc.

20140334825 - Protocols for coded light communications: Protocols for coded light communication and control in a lighting system wherein each lighting device transmits modulated light during illumination are proposed. When a first source lighting device need to transmit information across the lighting system to a destination lighting device one or more intermediate lighting devices decode received coded... Agent:

20140334826 - Lighting fixture for visible light communication and visible-light-communication system with same: A lighting fixture for visible light communication is configured to modulate light intensity of a light source (11) comprising a light-emitting device (2) to superpose a communication signal on illumination light. The lighting fixture includes: a power supply circuit (3) configured to control light output of the light source (11)... Agent: Panasonic Corporation

20140334827 - Miniature pluggable video module: A miniature pluggable video module having a length less than one inch, and a width less than three quarters of an inch, and a plurality of pin connectors attached to the back of the housing. The pluggable video module can be mounted horizontally or vertically. Inputs and outputs of the... Agent: Advanced Fiber Products, LLC

20140334828 - Pre-equalization using phase correction: An optical transmitter determines the transfer function in the reference-based pre-equalization for applying to an optically modulated signal at the transmitter. The determined pre-equalization transfer function is made robust to linewidth inaccuracy of the optical source by performing phase correction during the calculation of the pre-equalization transfer function. The phase... Agent: Zte Corporation

20140334829 - Optical transmitter and bias control method of optical modulator: An optical transmitter includes: a drive signal generator configured to generate a drive signal from input data; an optical modulator configured to generate an optical signal corresponding to the drive signal; a superimposer configured to superimpose a first reference signal on the drive signal and superimpose a second reference signal... Agent:

20140334830 - System and method for generating a frequency modulated linear laser waveform: A system for generating a frequency modulated linear laser waveform includes a single frequency laser generator to produce a laser output signal. An electro-optical modulator modulates the frequency of the laser output signal to define a linear triangular waveform. An optical circulator passes the linear triangular waveform to a band-pass... Agent: U.s.a. As Represented By The Administrator Of The National Aeronautics And Space Administration

20140334831 - Optical receiver and light receiving method: An optical receiver receives coherent light. The optical receiver includes an amplitude adjuster, a signal processor, and a controller. The amplitude adjuster adjusts amplitude of an input signal to output an analog signal. The signal processor receives a digital signal generated from the analog signal output from the amplitude adjuster,... Agent: Fujitsu Optical Components Limited

20140334832 - Method and system for a narrowband, non-linear optoelectronic receiver: Methods and systems for a narrowband, non-linear optoelectronic receiver are disclosed and may include amplifying a received signal, limiting a bandwidth of the received signal, and restoring the signal utilizing a level restorer, which may include a non-return to zero (NRZ) level restorer comprising two parallel inverters, with one being... Agent:

  
11/06/2014 > 20 patent applications in 15 patent subcategories.

20140328583 - Systems and methods for optical dark section conditioning: Embodiments of the disclosure are directed to optical dark section conditioning. An embodiment generates at least one of a broadband noise or signal at the head end of a section for a first module of the section; and operates all other modules of the section in gain control mode.... Agent: Ciena Corporation

20140328585 - Equalization signal processor, optical receiver including the same, and method for equalization signal processing: It becomes difficult to perform the optimum equalization signal processing in coherent receiving systems if a channel response in an optical fiber transmission line includes a factor without temporal centrosymmetry, therefore, an equalization signal processor according to an exemplary aspect of the invention includes an equalization filter means configured to... Agent: Nec Corporation

20140328584 - Reducing phase noise associated with optical sources: An optical transmitter may include an optical source to provide a first optical signal having a varying frequency; an optical circuit to receive a portion of the first optical signal and provide a second optical signal corresponding to a change in frequency of the first optical signal; a photodetector to... Agent: Infinera Corporation

20140328587 - Path computation in wavelength switched optical networks: A path computation client (PCC) can request a path computation element (PCE) to compute a path across a wavelength switched optical network. PCC sends a request which identifies end nodes. The end nodes can support a plurality of possible values of a transmission parameter, such as modulation format or Forward... Agent: Telefonaktiebolaget L M Ericsson (publ)

20140328586 - Signal deformation measurement on polarization-multiplexed signals: There is provided a method and an apparatus for determining quality parameters on a polarization-multiplexed optical signal based on an analysis of the power spectral density of the Signal-Under-Test (SUT). The method is predicated upon knowledge of the spectral shape of the signal in the absence of significant noise or... Agent: Exfo Inc.

20140328589 - Burst marker scheme in a communication system: An apparatus comprising a receiver configured to couple to an Ethernet Passive Optical network over Coaxial (EPoC) network, and receive an upstream Orthogonal Frequency Division Multiplexing (OFDM) signal comprising a plurality of OFDM Resource Elements (REs), and a processor coupled to the receiver and configured to determine a presence of... Agent: Futurewei Technologies, Inc.

20140328588 - Optical communication system, optical transmitter, and optical receiver: An optical communication system includes an optical transmitter, and an optical receiver connected via a transmission line to the optical transmitter, in which system the optical transmitter transmits a continuous-wave light signal that enables beat detection when combined with a local oscillator signal in the optical receiver, and the optical... Agent: Fujitsu Optical Components Limited

20140328590 - Optical transceiver:

20140328591 - Reconfigurable optical transmitter: Embodiments of the invention describe apparatuses, optical systems, and methods for utilizing a dynamically reconfigurable optical transmitter. A laser array outputs a plurality of laser signals (which may further be modulated based on electrical signals), each of the plurality of laser signals having a wavelength, wherein the wavelength of each... Agent:

20140328592 - Signal processing method, optical receiver and optical network system: A signal processing method, an optical receiver and optical network system is provided. The method includes: receiving a first optical signal sent by an optical network unit, generating a second optical signal and modulating a phase of the second optical signal, obtaining at least one path of electrical signals after... Agent: Huawei Technologies Co., Ltd.

20140328593 - Synchronization and control using out-of-band channels in passive optical network-based systems: Systems and methods are provided to use of out-of-band (OOB) channels for the transport of network-synchronization signals and network control information. These OOB channels transport synchronization and control channels over low-frequency bands outside of the frequency bands used for the data channels. Locating expensive network-synchronization functions in the optical network... Agent:

20140328594 - Mixing data and control codes on a wireless link: The subject disclosure is directed towards using an emitter such as an IR blaster to output control traffic (e.g., control codes that control operation of an appliance or toy) and data traffic. The timing of the output of the control code traffic and the data traffic is controlled so that... Agent: Microsoft Corporation

20140328595 - Radio frequency optical module and optical transmission apparatus including the same: Provided is a transistor outline (TO)-CAN type optical module and an optical transmission apparatus including the same. The optical module includes a stem, a thermo-electric cooler (TEC) on the stem, a first sub-mount on the TEC, an optical element on the first sub-mount, a plurality of electrode lead wirings inserted... Agent: Electronics And Telecommunications Research Institute

20140328596 - Combination underfill-dam and electrical-interconnect structure for an opto-electronic engine: A combination underfill-dam and electrical-interconnect structure for an opto-electronic engine. The structure includes a first plurality of electrical-interconnect solder bodies. The first plurality of electrical-interconnect solder bodies includes a plurality of electrical interconnects. The first plurality of electrical-interconnect solder bodies, is disposed to inhibit intrusion of underfill material into an... Agent:

20140328598 - Infrared reception circuit and infrared reception method: An infrared reception circuit and an infrared reception method are provided. The infrared reception circuit includes an infrared receiver for receiving infrared signals and converting the infrared signals into analog signals, an amplifier for amplifying the analog signals, an analog/digital converter for converting the amplified analog signals into digital signals,... Agent:

20140328599 - Network security and variable pulse wave form with continuous communication: A pulsed light communication device has a plurality of indicator light emitting diodes emitting diodes emitting at least one of a plurality of wavelengths of colored light to correspond to a designated color assigned to a security level for a network. A continuous uninterrupted modulated pulsed light emitting diode light... Agent: Federal Law Enforcement Development Services, Inc.

20140328597 - Trackable wireless optical communication: Embodiments provide a first communications device configured to communicate with one or more other communications devices over a wireless optical link. The first communications device may include a first communications structure configured to communicate with a second communications structure via the wireless optical link. The communications device may further include... Agent:

20140328600 - Cross-talk reduction in a bidirectional optoelectronic device: A multi-channel or bidirectional optoelectronic device comprises a two or more optoelectronic components, e.g., a photodetector and a light source. A protective encapsulant can be applied to the optoelectronic device that includes hollow dielectric microspheres to reduce electrical cross-talk, and that can further include an optical absorber to reduce optical... Agent: Hoya Corporation Usa

20140328601 - Optical modulator and method of encoding communications traffic in a multilevel modulation format: An optical modulator is described, comprising—an optical splitter to receive an optical carrier signal and split it into sub-signals; modulation assemblies, each comprising a binary optical modulator to apply a binary phase shift keyed, (BPSK) modulation to a respective optical sub-signal to form a BPSK modulated optical sub-signal. Modulation assemblies... Agent: Telefonaktiebolaget L M Ericsson (publ)

20140328602 - Digital coherent receiver, optical reception system, and optical reception method: A digital coherent receiver, includes: an acquisition circuit configured to acquire a plurality of digital electrical signals obtained by sampling a plurality of analog electrical signals by using a sampling signal and digitally converting the plurality of analog electrical signals, the plurality of analog electrical signals being obtained by subjecting... Agent: Fujitsu Limited

  
10/30/2014 > 21 patent applications in 16 patent subcategories.

20140321846 - Airfield lighting control and monitoring system utilizing fiber optic double loop self healing communications: Control and monitoring of airfield lighting from a control tower and other maintenance/supervisory locations uses double loop self healing fiber optic communications circuits to enhances speed of operation even with large and complex airfield lighting system requirements, and significantly increased reliability and operating lifetime thereof. A plurality of local light... Agent:

20140321844 - Method of carrying out fast switching in optical communication networks: method is provided for reducing adverse effects of a link failure in an optical network, wherein the optical network comprises at least one main link which comprises a first optical fiber amplifier (OFA), and along which communications traffic is currently being conveyed, and at least one protection link which comprises... Agent: Eci Telecom Ltd.

20140321845 - Passive optical network pon protection method and apparatus: The present invention is applicable to the field of PONs and provides a PON protection method and apparatus. A first transmission path is established between a first OLT and a far-end network node, and a second transmission path is established between a second OLT and the far-end network node. When... Agent:

20140321847 - System and method for transmitting data in a network: A system and method for transmitting data in a network comprising the steps of determining a traffic congestion variable of a data transmission node arranged to receive data from one or more source nodes of the network, using the traffic congestion variable to select a preferred transmission mode for use... Agent:

20140321848 - Optical transmitter and method for controlling operation state of optical transmitter: An optical transmitter includes: a ring waveguide; an electrode which is formed near the ring waveguide and is provided with a signal; a first waveguide optically coupled to the ring waveguide; a second waveguide optically coupled to the ring waveguide without optically coupled directly to the first waveguide; and a... Agent:

20140321849 - Apparatus for controlling a transmission path: An apparatus includes a switch unit configured to switch signal paths between a plurality of input ports and a plurality of output ports. The apparatus controls the signal paths according to the connection setting information stored in the apparatus. The connection setting information includes first and second connection information. The... Agent: Fujitsu Limited

20140321850 - Modular system and methods for connecting an external communication network to a user network of a building: A modular system for the connection of an external communication network to a user network of a building includes: a user module including: a passage opening of a connection cable of the user network including optical fibres associated with respective users and adapters associated with respective optical fibres of the... Agent: Prysmian S.p.a.

20140321851 - Transmission device and synchronization control method: A transmission device includes: a detector to detect a head pattern indicating a head of data for each of ports that receives the data; a write controller to write the data to a memory provided for each of the ports, based on a detection timing of the head pattern detected... Agent: Fujitsu Limited

20140321852 - Modular high-capacity switch: A modular optical switch includes a set of optical switch modules connected in a mesh, a master controller for the whole optical node and a switch-module controller for each of the optical switch modules. The optical switch modules receive optical signals from, and transmit optical signals to, edge nodes based... Agent:

20140321853 - Network with a fast-switching optical core providing widely varying flow-rate allocations: Multiple switch planes, each having meshed bufferless switch units, connect source nodes to sink nodes to form a communications network. Each directed pair of source and sink nodes has a first-order path traversing a single switch unit in a corresponding switch plane and multiple second-order paths each traversing two switch... Agent:

20140321854 - Energy efficient dynamic bandwidth allocation for optical networks: Device and method for scheduling traffic exchange in a passive optical network, PON, to reduce energy consumption. The method includes a step of instructing an optical network terminal, ONU, and an optical line terminal, OLT, in the PON to maximize an overlap between upstream and downstream communications by exchanging a... Agent:

20140321855 - Ont connected to a host device: Communication between an ONT (1) and a host device (2), which are connected to form a combined ONT-host unit, the communication being associated with an OMCI-configuration of the ONT-host unit. The communication uses a memory of the ONT, and the Host Device (e.g. radio base station) memory is accessible also... Agent: Telefonaktiebolaget L M Ericsson (publ)

20140321856 - Wavelength multiplexed transmitter optical module: A transmitter optical module is disclosed. The transmitter optical module has optical sources each emitting optical beam with a specific wavelength different from others and lenses corresponding to the optical sources. The optical sources and the lenses are mounted on a carrier. The carrier provides grooves surrounding rectangular areas where... Agent:

20140321857 - Linearized optical digital-to-analog modulator: A modulator device for converting digital data into modulation of an optical signal includes an electronic input for receiving an input data word of N bits and an electrically controllable modulator for modulating the intensity of an optical signal, the modulator including M actuating electrodes where M≧N. An electrode actuating... Agent:

20140321858 - Optical network termination systems and methods: Disclosed embodiments include optical network termination systems, network interface devices, and methods of terminating an optical telecommunications network. Telecommunications signals are conveyed over an optical fiber between an external telecommunications network and a processor at or near a customer premises. Some or all of the telecommunications signals are conveyed between... Agent: Centurylink Intellectual Property LLC

20140321860 - Lighting apparatus for visible light communication, and visible light communication system using the apparatus: A lighting apparatus for visible light communication includes at least one luminaire body and a visible-light-communication-signal-outputting part. The luminaire body includes a light source that includes an LED. The visible-light-communication-signal-outputting part is configured to output a modulation signal to the luminaire body. The luminaire body further includes: a power supply... Agent: Panasonic Corporation

20140321859 - Methods and devices for transmitting /obtaining information by visible light signals: The present invention discloses methods and devices for transmitting/obtaining information by visible light signals. The method for transmitting information by visible light signals of two or more wavelengths from light sources comprises: modulating, on the basis of the information to be transmitted, two or more driving signals of the light... Agent: Beijing Guo Cheng Wan Tong Information Technology Co Ltd.

20140321861 - Two way burst mode digital optical cable communication system: A digital burst mode communication system operates at a fixed wavelength for transmission and reception of burst mode signals using a pair of transceivers and a single optical cable. The stray noise level in the system is significantly reduced by use of angled plate absorbers that receive scattered transmission burst... Agent:

20140321862 - Photon detector and a photon detection method: A photon detection system is provided comprising a photon detector, configured to detect photons during intervals when in a receiving state and to output a signal when a photon is received, a controller, configured to generate a time varying gating signal wherein said gating signal switches said detector between the... Agent: Kabushiki Kaisha Toshiba

20140321863 - Multiple level signaling for passive optical networks: A technique in which an outgoing signal is encoded to have multiple signal levels to modulate a light source, in which respective signal levels are indicative of different signal states of more than one bit. The multi-level signal is transmitted on a passive optical network (PON) having passive splitters to... Agent: Broadcom Corporation

20140321864 - Linearization of optical intensity modulation systems: Embodiments for improving the Signal to Noise and Distortion (SINAD) ratio in Pulse Amplitude Modulation (PAM)-M optical intensity modulation systems, to enable higher data rate communications, are provided. Embodiments can be used to improve the linearity and reduce the distortion of electrical and electro-optics components (including optical modulators) in optical... Agent: Broadcom Corporation

  
10/23/2014 > 28 patent applications in 22 patent subcategories.

20140314400 - Multi-layer link management device, multi-layer integrated network transport system, and multi-layer link management method: A multi-layer link management device, a multi-layer integrated network transport system, and a multi-layer link management method are provided. The multi-layer link management device according to an embodiment of the present invention establishes a traffic engineering link stack integrated into one control plane in a multi-layer network, performs real-time monitoring... Agent: Electronics And Telecommunications Research Institute

20140314401 - Transmission equipment and path selection method: Transmission equipment comprises: a measurement unit configured to measure respective transmission delays of the plurality of paths by using a frame transmitted between the transmission equipment and correspondent equipment; a detector configured to detect a priority of an input packet; a selector configured to select a path for transmitting the... Agent: Fujitsu Limited

20140314402 - Preventing invalid defect detection during otn out-of-frame states: Methods and systems can suppress invalid defect detection when Out-Of-Frame (OOF) conditions occur within an Optical Transport Network. One method for processing a report of a defect during an OOF condition may include detecting the OOF condition at a downstream node, detecting an indication of the defect caused by the... Agent: Ciena Corporation

20140314403 - Communication light detecting structure, communication light detecting optical connector including the communication light detecting structure, and communication light detecting optical cable including the communication light detecting structure: A communication light detecting structure includes a communication optical fiber configured to transmit communication light; a leakage optical fiber optically connected to the middle of the communication optical fiber via optical connection portions, the leakage optical fiber being different in core refractive index from the communication optical fiber; and a... Agent: Hitachi Metals, Ltd.

20140314404 - Optical communication apparatus: An optical communication apparatus includes an emitting device and a receiving device. The emitting device includes optical signal emitters, a first driver chip, a first lens member, a first control chip, and a first wireless transmitting and receiving unit. The receiving device includes optical signal receivers, a second driver chip,... Agent: Hon Hai Precision Industry Co., Ltd.

20140314405 - Method and apparatus for equalizing link performance: Embodiments of the present invention provide a method and an apparatus for equalizing link performance, and relate to the field of optical wavelength division multiplexing. In the present invention, target input power spectra and target output power spectra in all OMS sections in a network and single wave attenuation at... Agent:

20140314406 - Systems and methods for temperature insensitive photonic transmission: A photonic communication system communicates M signals over a waveguide by modulating M wavelengths of light. N photonic rings at a receiver, where N is greater than M, are used to demodulate the M wavelengths. The modulated frequencies and resonant wavelengths of the receive rings are allowed to drift relative... Agent:

20140314408 - Harmonized control planes, systems and methods: A control plane management system is disclosed for distributed or virtualized network fabrics. The system instantiates a harmonized control plane that aids in provisioning resources across layers within a fabric. The system comprises a network fabric interface that couples with a network fabric of interconnected nodes. The system further comprises... Agent: Nant Holdings Ip, LLC

20140314409 - Intelligent and scalable routing in multi-domain optical networks: A method of extending the control plane to a metro sub-domain for a network having a transport plane for carrying subscriber traffic within end-to-end connections, and a control plane for managing at least a portion of resources of the transport plane allocated to the connections. A first set of control-plane... Agent:

20140314407 - Rf ingress in fiber-to-the-premises: In a communication network, a node at a subscriber premises includes an input/output (I/O) port, and a device for monitoring a subscriber premises. The device includes an upstream signal path including a first switch, a downstream signal path, and a controller having an input/output (I/O) port coupled to the I/O... Agent:

20140314411 - Optical nyquist superchannel generation using microwave low-pass filtering and optical equalization: Disclosed are structures and methods for generating a Nyquist superchannel.... Agent: Nec Laboratories America, Inc.

20140314410 - System for transmission over a multi-mode and/or multi-core optical fiber: A transmitter for an optical telecommunication system on a weakly multimode fiber is disclosed. One aspect is a transmitter including an encoder transforming each block of symbols to be transmitted into a code matrix, each element of the matrix being relative to a time of use and to a propagation... Agent: Institut Mines-telecom

20140314413 - Access system, communication method and device for optical fiber network: Embodiments of the present invention provide an access system and a communication method for an optical fiber network. A virtual ONU located on a user side is established, and an ONU control plane function, a PON MAC function, and a QoS function on an existing ONU is moved downwards to... Agent:

20140314412 - System and method for a subscriber-powered network element: A system for powering a network element of a fiber optic wide area network is disclosed. When communication data is transferred between a central office (CO) and a subscriber terminal using a network element to convert optical to electrical (O-E) and electrical to optical (E-O) signals between a fiber from... Agent:

20140314414 - Flexible twdm pon with load balancing and power saving: An apparatus comprising an arrayed waveguide grating (AWG) comprising a plurality of AWG ports, a power splitter comprising a plurality of splitter ports, and a plurality of optical interleavers, each coupled to a respective AWG port and a respective splitter port, for directing incoming optical signals to one of the... Agent: Futurewei Technologies, Inc.

20140314416 - Crosstalk reduction in optical networks using variable subcarrier power levels: A method and system for reducing crosstalk among subcarriers of a super-channel may involve adjusting power levels of the subcarriers. In one example, power levels of edge and/or intermediate subcarriers may be reduced relative to center subcarriers in the super-channel band. The adjustment in power level may lead to overall... Agent: Fujitsu Limited

20140314415 - Crosstalk reduction in optical networks using variable subcarrier spectral allocation: A method and system for reducing crosstalk among subcarriers of a super-channel may apply a frequency shift to selected intermediate subcarrier bands upon optical modulation. The frequency shift may be applied to equally spaced optical frequencies between a first optical frequency and a last optical frequency respectively corresponding to two... Agent: Fujitsu Limited

20140314417 - Reconfiguration of an optical connection infrastructure: An optical connection infrastructure has optical conduits between first devices and at least one second device. Dynamic reconfiguration of the optical connection infrastructure can be performed from a first connection topology to a second, different connection topology based on programming of the first devices.... Agent:

20140314418 - Allocating orthogonal frequency-division multiple access (ofdma) resources in ethernet passive optical network (epon) over coaxial (epoc): A method implemented in a Fiber Coaxial Unit (FCU) comprising receiving a plurality of Ethernet Passive Optical Network (EPON) report messages from a plurality of Coaxial Network Units (CNUs) across a coaxial network, receiving an EPON gate message comprising Time Quanta (TQ) information indicating an upstream transmission time grant for... Agent: Futurewei Technologies, Inc.

20140314419 - System and method for quantum information transfer between optical photons and superconductive qubits: An electro-optical system for exchanging quantum information between optical qubits and including a superconductive microwave cavity; an electro-optical material: a superconductive qubit circuit formed on the electro-optical material including a superconductive qubit; a dipole antenna, formed on the electro-optical material for directly coupling the superconductive qubit to the superconductive microwave... Agent: Raytheon Bbn Technologies Corp.

20140314420 - Light detection system and method: There is provided a light detection system which is capable of determining in light embedded codes by detecting light in a scene which is illuminated by an illumination system (110) comprising one or more light sources (111,112,113) each providing a light contribution (I111, I112, I113) comprising an embedded code (ID#1,... Agent: Koninklijke Philips N.v.

20140314421 - Apparatus and method for switching mode in a location based service system using visible light communication: A method and a lighting device for providing a Location Based Service (LBS) service providing a Location Based Service (LBS) based on Visible Light Communication (VLC) is provided. The method includes receiving, by at least one light source, data from a coordinator, the data including identification information of the at... Agent:

20140314422 - Bidirectional parallel optical transceiver module and a method for bidirectionally communicating optical signals over an optical link: Bidirectional parallel optical transceiver modules for use in optical links and methods for communicating bidirectionally over the links are provided. The bidirectional parallel optical transceiver modules have features that ensure relatively low optical crosstalk, relatively low return loss and relatively high SNR. In addition, the modules have an in-line, zig-zag... Agent:

20140314424 - Optical communication apparatus: An optical communication apparatus includes a PCB, a photoelectric unit, a fixing board, a coupler, and an optical fiber unit corresponding to the photoelectric unit. The photoelectric unit is electrically connected to a surface of the PCB, the fixing board is securely positioned on the surface of the PCB, and... Agent: Hon Hai Precision Industry Co., Ltd.

20140314423 - Optoelectronic module with flexible substrate: An optoelectronic module for data communication through an optical fiber. The optoelectronic module may comprise a base, an outer cap, an inner cap, a flexible substrate, an attachment member, a moisture barrier and an optoelectronic module. The outer cap may have a first cavity and coupled with the base. A... Agent: Avago Technologies GeneralIP(singapore) Pte. Ltd.

20140314425 - Full-duplex multi-mode fiber communication: Techniques are presented herein to facilitate higher bandwidth communications in a data center using existing multi-mode fibers and full-duplex optical communication techniques. A first device transmits to a second device a first optical signal at a first wavelength on a first optical fiber. The first optical signal carries a first... Agent: Cisco Technology, Inc.

20140314426 - Optical connector: An optical connector includes a printed circuit board, at least one emitter, at least one receiver, a coupler, and a number of positioning poles. The printed circuit board includes an assembling surface defining a number of first positioning recesses therein. The emitter and the receiver are electrically connected to the... Agent: Hon Hai Precision Industry Co., Ltd.

20140314427 - Optical transmission apparatus and optical transmission method: An optical transmission apparatus receives an optical signal of an optical wavelength. The optical transmission apparatus has a variable wavelength filter, a neighboring frequency detection unit, and an ADC/DSP. The variable wavelength filter detects a neighboring of another optical transmission apparatus that receives an optical signal of a wavelength different... Agent: Fujitsu Limited

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