Optical communications inventions 07/09

20090190920 - Optical apparatus: An optical apparatus connected to an up and a down transmission lines, comprising an optical amplifier including an optical amplification medium and an excitation light source. The excitation light source supplies an excitation light to the optical amplification medium. An optical supervisory channel (OSC) unit receives OSC optical signals from,... Agent: Staas & Halsey LLP

20090190921 - Optical line monitoring apparatus and optical line monitoring method: An optical line monitoring apparatus, including: a group information recording portion which records group information about to which splitter respective terminators are connected; a normal information recording portion which records intensities of reflected lights from a plurality of terminators in a state in which a failure is not occurring in... Agent: Sughrue Mion, PLLC

20090190922 - Communication system: A communication system includes a first device and a second device. The first device includes a first housing including a first guiding member, a modulator modulating a laser beam based on transmission information, and an emission unit emitting the laser beam that has been modulated. The second device includes a... Agent: Moss & Burke, PLLC

20090190923 - Electronic apparatus: A system including a device equipped with a reception section, a reception condition detection section and a control section. A partner device emits laser light and modulates the laser light in accordance with transfer subject information. Relative positions of the partner device and the device are adjusted to a communication-possible... Agent: Moss & Burke, PLLC

20090190924 - Method and system for automatic feedback control for fine tuning a delay interferometer: A method for receiving an optical signal is included where an ingress signal is split into a first portion and a second portion. A relative delay is induced between the first portion and the second portion, which are optically interfered to generate at least one interfered signal. Quality criteria of... Agent: Davidson, Davidson & Kappel, LLC

20090190925 - Optical transmission apparatus: In an optical transmission apparatus, a unit includes a first connection section, a second connection section, a branching section, a first detection section, and a second detection section. The first connection section connects to a first component. The second connection section connects to a second component. The branching section is... Agent: Staas & Halsey LLP

20090190926 - Combined phase and polarization modulation for optical communication: The invention relates to a modulation scheme for optical communication, in particular for fiber optics communication. According to invention, an optical signal is generated, both phase and polarization of which modulated in dependency of the data to be transmitted. Preferably, the generated optical signal comprises a sequence of symbols (22a-22k)... Agent: Patti , Hewitt & Arezina LLC

20090190927 - Optical code division multiplexing transmission and reception method and optical code division multiplexing transceiver: An object of the present invention is to provide an OCDM transceiver with which the reduction amount of the intensity of the correlation waveform signal is smaller than that of a conventional device of the same type in the decoding step that comprises a time gate processing step. Hence, in... Agent: Venable LLP

20090190928 - Method and arrangement for switching a raman pump laser on and/or off: Optoelectrical conversion of the received optical service signal (OSS), bandpass filtering and subsequent squaring produce a spectral line at the clock frequency (fT). This clock line (TL) is selected by means of narrowband filtering and rectified. The service signal voltage (VTLM) obtained in this manner is used to switch on... Agent: K&l Gates LLP

20090190929 - Optical orthogonal frequency division multiplexed communications with nonlinearity compensation: The present invention discloses a transmitter and receiver for optical communications system, which provide compensation of the optical link nonlinearity. M-PSK modulating is used for data embedding in an optical signal in each WDM channel using orthogonal frequency division multiplexing (OFDM) technique. At the receiver side electrical output signals from... Agent: Celight, Inc.

20090190930 - Method and arrangement for polarization mode dispersion mitigation: In an optical transmission system including a transmitter Tx and a receiver Rx connected via a fiber link F, where the receiver Rx is adapted to utilize Forward Error Correction (FEC) on received signals, a polarization scrambler is provided at the transmitter Tx to scramble the polarization state of a... Agent: Nixon & Vanderhye, PC

20090190931 - Optical line terminal: An optical line terminal receives an optical signal transmitted by time division multiple access from plural optical network units among which are an optical network unit performing communications at a first bit rate and an optical network unit performing communications at a second bit rate. The optical line terminal includes... Agent: Staas & Halsey LLP

20090190932 - Electronic device: An electronic device includes a casing having a laser light reception region on its outer surface, a receiver that receives transmission data from a partner device, and a suppression member that suppresses leakage of the laser light between the partner device and the electronic device. The partner device includes a... Agent: Moss & Burke, PLLC

20090190933 - Dispersion and nonlinear compensator for optical delivery fiber: A system for dispersion compensation in a terahertz system includes an optical fiber configured to transmit an optical pulse, a compensator optically coupled to the optical fiber, the compensator configured to compensate for a dispersion of the optical pulse caused as the optical pulse propagates through the optical fiber, and... Agent: Brinks Hofer Gilson & Lione

20090190934 - Fiber communication system, fiber amplifier, and method for fabricating fiber amplifier: The present invention discloses a fiber amplifier, a fabricating method thereof, and a fiber communication system. The fiber amplifier includes at least a pump laser, at least a gain medium and at least an integrated optical component. The integrated optical component includes multiple optical input/output ports, and the optical input/output... Agent: Finnegan, Henderson, Farabow, Garrett & Dunner LLP

20090185802 - Method and apparatus for generating visible signal for data transmission frame in visible-light communication system: A method for generating a visible signal for a data transmission frame in a visible-light communication system includes: receiving specific data constituted by a plurality of frames from a sender; checking and converting a received signal strength indication (RSSI) signal measured from the sender; whenever each frame of the specific... Agent: Cha & Reiter, LLC

20090185803 - Optical multiplexer/demultiplexer: An optical multiplexer/demultiplexer comprises one light guide main line which guides lights of a plurality of wavelengths, and two or more microring optical resonators directly optically coupled to the one light guide main line. The two or more microring optical resonators are arranged in any two of layers higher than,... Agent: Oblon, Spivak, Mcclelland Maier & Neustadt, P.C.

20090185804 - Optical access network system: In an optical access network system in which a relay station receives a wavelength multiplexed and time-division multiplexed optical signal (WDM optical signal) from an optical network, and the relay station transmits optical signals having specified wavelengths to subscriber units, the relay station demultiplexes the WDM optical signal into a... Agent: Staas & Halsey LLP

20090185805 - Network design apparatus, network design method, and computer product: A network design apparatus designs arrangement of various types of optical transmission devices in stations within a linear section in a network. An acquisition unit acquires information concerning the type of optical transmission device to be provided in the stations, and information concerning cost and transmission degradation for the optical... Agent: Staas & Halsey LLP

20090185806 - Broadcasting arrayed waveguide: The invention is a data transmission device that includes: an input Free Propagation Region (FPR) receiving a multi-wavelength signal and a single-wavelength signal, and two sets of arrayed waveguides coupled to the input FPR to carry the multi-wavelength signal and the single-wavelength signal, respectively. The arrayed waveguides demultiplex the multi-wavelength... Agent: Haynes And Boone, LLPIPSection

20090185807 - Wavelength division multiplexing passive optical network for providing both of broadcasting service and communication service and central office used thereof: Disclosed is a wavelength division multiplexing passive optical network for simultaneously providing a broadcasting service and a data service by employing a broadband light source, which uses mutually injected Fabry-Perot laser diodes, as well as a central office used for the same.... Agent: Blakely Sokoloff Taylor & Zafman LLP

20090185808 - Optical communication device and method of manufacturing the same: An optical communication device contains a semiconductor chip that performs wireless communication and a wireless-signal-and-optical-signal conversion chip substrate that mounts the semiconductor chip. The semiconductor chip includes a first wireless communication circuit element and a first antenna element. The first wireless communication circuit element is connected to the first antenna... Agent: Robert J. Depke Lewis T. Steadman

20090185809 - Irda transceiver module that also functions as remote control ir transmitter: The infrared LED of an IrDA module transmits IR energy with a peak wavelength (for example, 875 nm) appropriate for IrDA communication. This peak wavelength is lower than is the wavelength (for example, 940 nm) used in ordinary IR remote controls (RC). The IrDA LED does, however, transmit some energy... Agent: Imperium Patent Works

20090185810 - Single chip two-polarization quadrature synthesizer, analyser and optical communications system using the same: An optical beam synthesizer formed on a single chip is provided. It allows M-PSK modulation for both beam polarizations. The synthesizer comprises an optical pulse shaper and two M-PSK modulators for each polarization. A single-chip-integrated analyzer is provided to receive a modulated data. Analyzer comprises a pulse shaper operating as... Agent: Celight, Inc.

20090185811 - Space diversity optical receiver and system and method using the same: An optical beam combiner is provided, which allows efficient collection of light for various applications: non-line of sight and free space optical communications, remote sensing, optical imaging and others. A multitude of optical beam portions is captured by a space diversity receiver that includes an optical beam combiner, which has... Agent: Celight, Inc.

20090180774 - Method for allocating and configuring tandem connection monitoring (tcm): A method for allocating and configuring TCM in an embodiment of the present invention includes: configuring the domain that needs TCM in a network and the scope of the domain; determining the ODU service that needs TCM; and allocating TCM automatically according to the ODU service trail and the configured... Agent: Brinks Hofer Gilson & Lione

20090180775 - Wireless tuning and reconfiguration of network units including optoelectronic components: A method for monitoring conditions or adjusting a communications transmission characteristic, such as the optical wavelength, in a network unit such as a server, data storage unit, router, or switch, using a portable terminal having wireless RF communications capability. In one embodiment, the network unit has a tunable laser subassembly... Agent: Emcore Corporation

20090180776 - Architecture for reconfigurable quantum key distribution networks based on entangled photons by wavelength division multiplexing: A system and method for securing communications over a wave division multiplexing optical network between a plurality of users connected to the network. The system utilizes a primary optical source generator that is either tunable, or capable of generating a plurality of wavebands of different frequencies equal to the sum... Agent: At& T Legal Department - Monka Attn: Patent Docketing

20090180777 - Systems, apparatus, methods and computer program products for downloading and maintaining ip stream whitelists on optical network terminals: Systems, apparatus, methods and computer program products are provided for downloading a whitelist onto a passive optical network including a passive optical network and a management interface communicatively coupled to the passive optical network and configured to provision the whitelist. An optical line terminal also on the passive optical network... Agent: Fitzpatrick Cella (tellabs)

20090180778 - Forward discrete/inverse-discrete fourier transform device and method for optical ofdm communication and transmitting and receiving apparatus comprising the device: Disclosed are a forward discrete/inverse-discrete Fourier transform device and method for optical orthogonal frequency division multiplexing (OFDM) communication and a transmitting and receiving apparatus.The forward inverse-discrete Fourier transform device includes N 1:N splitters for splitting subcarrier signals received from N inputs corresponding to the number of optical frequencies of subcarriers,... Agent: The Webb Law Firm, P.C.

20090180779 - Methods and apparatus for performing directionless wavelength addition and subtraction within a roadm based optical node: In today's reconfigurable optical add/drop multiplexer (ROADM) based optical node, transponders associated with the ROADMs' add/drop ports are dedicated to a given network node interface. Dedicated transponders reduce the flexibility to route around network failures. Example embodiments of the invention includes an optical node and corresponding method for routing optical... Agent: Hamilton, Brook, Smith & Reynolds, P.C.

20090180780 - Apparatus and method for transmitting data in wireless visible light communication system: Disclosed is a method for transmitting data in a wireless visible light communication system, the method including the steps of transmitting a pilot signal for obtaining channel state information according to each channel from a transmitter to a receiver, and transmitting a pilot response signal containing channel state information according... Agent: Cha & Reiter, LLC

20090180781 - Systems and methods for free space optical communication: Free space optical communication methods and systems, according to various aspects are described. The methods and systems are characterized by transmission of data through free space with a digitized optical signal acquired using wavelength modulation, and by discrimination between bit states in the digitized optical signal using a spectroscopic absorption... Agent: Battelle Memorial Institute Attn:IPServices, K1-53

20090180782 - Apparatus, system, computer program, and method for providing a multimedia-over-coax-alliance network in conjunction with an optical network: An apparatus, system, computer program, and method for providing a Multimedia over Coax Alliance (MoCA) (or other multimedia-over-coaxial cable technology) network in conjunction with an optical network. In example embodiments, MoCA data is communicated between network nodes in an optical signal. In other example embodiments, MoCA data, or other data,... Agent: Fitzpatrick Cella Harper & Scinto

20090180783 - Method, network, apparatus and computer program for using leaky counters in clock and data recovery circuits: A method for performing CDR on a digital transmission, and an apparatus, system, and computer program that operate in accordance with the method. The method includes oversampling the digital transmission into oversampled data, detecting edges between adjacent bits of the oversampled data, counting the edges, and selecting at least one... Agent: Fitzpatrick Cella Harper & Scinto

20090180784 - Optical transceiver module: Provided is a metal casing structure capable of avoiding a cavity resonance at 10 GHz and 20 GHz by controlling an eigenmode frequency in an inner space of a casing without involving an increase in cost, and a 10 Gbit/s optical transceiver module which achieves reduction in unnecessary electromagnetic waves... Agent: Mattingly & Malur, P.C.

20090180785 - Optical transmitter, optical transmission system and modulation scheme selection method: The present invention provides an optical transmitter, an optical transmission system and a modulation scheme selection method capable of selecting either of an optical duobinary modulation scheme and an optical DPSK modulation scheme. The optical transmitter according to the present invention includes a first exclusive OR circuit which outputs as... Agent: Nec Corporation Of America

20090180786 - Carrier-suppressed optical pulse train generating device and method: The device is structured to have a first electric modulation signal generator, a second electric modulation signal generator, a two-mode beat light source and an optical intensity modulator. The first electric modulation signal generator generates and outputs a first electric modulation signal. The second electric modulation signal generator generates and... Agent: Moss & Burke, PLLC

20090175616 - Automatic power restoring method and optical communication system: The present invention provides an automatic power restoring method capable of reliably detecting continuity by the dissolution of a line fault, to restore the optical power, even in a structure including an optical amplification medium on an optical transmission path and an optical communication system using the method. To this... Agent: Staas & Halsey LLP

20090175617 - Apparatus and method for commissioning an optical transmission system: An apparatus and method directed to testing and optimizing performance of an optical transmission system is disclosed, including at least one broadband dispersion compensation unit (DCU) or at least one depolarization device. The depolarization device may be used alone or in combination with the at least one broadband DCU. A... Agent: Tcm/gtpp

20090175618 - Method and apparatus for implementing subnet connection protection with sub-layer monitoring on an oduk: The present invention relates to the field of Optical Transport Networks (OTNs) and discloses a method for implementing SNC/S on an ODUk, including: allocating a Tandem Connection Monitoring (TCM) level to an ODUk service, wherein if different TCM levels are allocated to the same node in the ODUk service, the... Agent: Finnegan, Henderson, Farabow, Garrett & Dunner LLP

20090175619 - Burst power measurements using averaged power measurement: An apparatus comprising an individual optical power level calculation (IOPLC) module and a transceiver coupled to the IOPLC module and configured to communicate with a plurality of optical network units (ONUs). Also disclosed is an apparatus comprising a control and management (CM) module, an average power level measurement (APLM) module... Agent: Conley Rose, P.C.

20090175620 - Wavelength-switched optical add-drop multiplexer with wavelength broadcasting capability: The present invention provides a wavelength-switched reconfigurable optical add-drop multiplexer (R-OADM) with wavelength broadcasting capability, such that asymmetric video signal distribution and the like can be performed without sacrificing with respect to component complexity and expense. The present invention utilizes an optical splitting and combining device with the wavelength-switched R-OADM... Agent: Clements Bernard PLLC

20090175621 - Optical code division multiplexing module and method: An optical code division multiplexing module includes a superstructured fiber Bragg grating having equally spaced unit fiber Bragg gratings that convert an optical pulse into an optical chip train with equal inter-chip phase differences. A thermo-module heats or cools the mounting plate to which the superstructured fiber Bragg grating is... Agent: Rabin & Berdo, PC

20090175622 - Method for allocating upstream transmission bandwidth in wdm-epon: Disclosed is a method fox allocating upstream transmission bandwidth so as to prevent Inter-Scheduling Cycle Gaps (ISCGs) from occurring in an N number of Optical Network Units (ONUs) by using an m number of wavelength channels for upstream transmission in a Wavelength-Division Multiplexing (WDM)-Ethernet Passive Optical Network (EPON). The method... Agent: Blakely Sokoloff Taylor & Zafman LLP

20090175623 - Optical signal detector: An optical signal detector is provided that detects an optical signal from an optical source using a plurality of optical sensors having different wavelength selectivities, thereby determining the peak wavelength of the optical signal and measuring the power of an optical signal corresponding to the peak wavelength. According to the... Agent: Drinker Biddle & Reath LLP Attn: Patent Docket Dept.

20090175624 - Conversion circuit: A circuit for converting data of a signal line in the form of logical pulses of current to RS232 level voltages between an air-conditioner and a computer is described. The conversion circuit is able to troubleshoot the communication signals between the indoor unit and outdoor unit of an air-conditioner.... Agent: Fish & Richardson P.C.

20090175625 - Optically connected system for exchanging data among industrial automation devices: An optically-connected system is disclosed for exchanging data among industrial automation devices, that is composed of a plurality of connection modules, where each module comprises at least two pairs of optical transmitters and receivers on the main side, and one optical receiver on the opposing main side, that are opposite... Agent: Sheldon Mak Rose & Anderson PC

20090175626 - Optical transceiver amplifier: Systems and devices for use as optical transceivers and amplifiers in optical networks. An optical transceiver/amplifier has two optical signal circulators, each of which receives one incoming signal and transmits one outgoing optical signal. Each circulator combines its incoming and outgoing signals on to a bidirectional optical connection internal to... Agent: Shapiro Cohen

20090175627 - Data transmission system using optical fiber: A data transmission system using an optical fiber includes an optical fiber, a first light-emitting device, a second light-emitting device, a first photo-detecting device and a second photo-detecting device. Each of the first light-emitting device and the second light-emitting device is optically coupled to the input facet of the optical... Agent: Muncy, Geissler, Olds & Lowe, PLLC

20090175628 - Optical amplifier capable of amplifying optical signals that traverse separate transmission fibers: Optical amplification by combining two or more optical signals from separate optical fibers, amplifying the combined signal using an optical fiber, and separating the amplified signals into their constituent optical signals. The separated optical signals may then be sent further in the direction they had been heading before combination. This... Agent: Workman Nydegger 1000 Eagle Gate Tower

20090175629 - Dispersion compensation method and fiber transmission system: A dispersion compensation method and a fiber transmission system are disclosed, pertaining to the field of fiber communications. The dispersion compensation method includes: after performing electrical pre-compensation processing on a digital transmit signal, the transmitting end controls the electrical/optical converting module to output a distorted optical signal; after receiving the... Agent: Brinks Hofer Gilson & Lione

20090175630 - Optical interconnection system for transmitting and receiving a three-level signal and method of operating the same: Provided is an optical interconnection system that transmits and receives a three-level signal. The optical interconnection system includes a first and a second optical interconnection device that transmits and receives a two-level signal, and a synthesizer that outputs a three-level signal by synthesizing signals from the first and second optical... Agent: Harness, Dickey & Pierce, P.L.C

20090175631 - Pulse signal demodulation device: In an optical transmission system in which a pulse signal is converted into an optical signal before transmission, a pulse signal demodulation device capable of correctly demodulating the pulse signal is provided. An optical-to-electrical conversion section (31) converts a received optical signal into an electrical signal, and outputs the electrical... Agent: Wenderoth, Lind & Ponack L.L.P.

20090169200 - Method, system and apparatus for protecting wavelength division multiplex transmission: A method for protecting WDM transmission. On the first transmission direction, the first node implements service transmission to the second node by selecting one from the two transmission paths protected by each other, the second node implements two-path reception based on the two transmission paths; on the second transmission direction... Agent: Leydig, Voit & Mayer, Ltd (for Huawei Technologies Co., Ltd)

20090169201 - Optical transmission apparatus: An optical transmission apparatus includes a network, a plurality of transponders, a monitor, a multiplexer, and demultiplexer. The plurality of transponders connected with the network, each of the plurality of transponders having a response transfer processing unit for communicating between the other transponders via the network, the plurality of transponders... Agent: Staas & Halsey LLP

20090169202 - Link discovery and verification using loss of light: Systems and methods for link discovery and verification that minimize the need for line termination resources to generate and interpret packets. According to one aspect of the present invention, a method for operating a first node in a data communication network to verify connectivity to a second node includes sending... Agent: Edell, Shapiro & Finnan, LLC

20090169203 - Optical transmission device and optical transmission method: An optical transmission device for controlling an optical signal output includes a return light detection section for detecting return light of the optical signal transmitted via the optical transmission line; a superimposed light transmission section for generating superimposed light having a superimposed basic low-frequency wave and transmitting the light when... Agent: Fujitsu Patent Center C/o Cpa Global

20090169204 - Frame-interleaving systems and methods for 100g optical transport enabling multi-level optical transmission: The present invention provides frame-interleaving systems and methods for Optical Transport Unit K (OTUK) (i.e. Optical Transport Unit 4 (OTU4)), 100 Gb/s Ethernet (100 GbE), and other 100 Gb/s (100 G) optical transport enabling multi-level optical transmission. The frame-interleaving systems and methods of the present invention support the multiplexing of... Agent: Clements Bernard PLLC

20090169205 - Optical network: An optical network is disclosed comprising one or more photonic switching nodes is disclosed. Each of the switching nodes comprises a plurality of input ports; at least one output port; and a switch configured to route messages between the plurality of input ports and the at least one output port... Agent: Baker Botts L.L.P.

20090169206 - Method and a network for processing of wavelength division multiplexed data: The invention relates to a network comprising at least one host device having an interface card connected to a backplane of said host device, wherein said interface card comprises at least one cage, for receiving a pluggable module which performs signal processing of data comprised of at least one WDM... Agent: F. Chau & Associates, LLC

20090169207 - Determining transmission port in a gpon network: In a VLAN per service architecture, an ONT of a GPON network operating in an untrusted mode produces a service selection filter from a DHCP message sent from a particular VLAN. The service filter may be dependent on the CPE address and/or the destination address, and is used to select... Agent: Rg And Associates

20090169208 - Systems and methods for the polarization insensitive coherent detection and the polarization division multiplexed transmission of optical communication signals: The present invention relates generally to the transport and processing of optical communication signals. More specifically, the present invention relates to systems and methods for the polarization insensitive coherent detection of optical communication signals with Brillouin amplification of the associated signal carrier and the polarization division multiplexed transmission of optical... Agent: Clements Bernard PLLC

20090169209 - Network system, optical line terminating apparatus, and optical network apparatus: A general object of the present invention is to provide an optical communication system in which an optical transmission power of an optical communication apparatus is controlled to be a required minimum power that apparatuses of all subscribers in the optical communication system meet a prescribed error rate. An optical... Agent: Stanley P. Fisher Reed Smith LLP

20090169210 - Digital encoding of labels for optical packet networks: Methods and apparatuses are provided for transmitting labels in an optical packet network. Groups of K payload bits are encoded into blocks of N bits by using a code in which each of the groups of K payload bits is represented by a corresponding one of at least two distinct... Agent: At & T Legal Department - Ndq

20090169212 - Optical transmission apparatus and optical communication system: An optical communication system, where in an optical transmission apparatus arranged on a transmission side of respective repeating sections, an OSC optical amplifier is provided on an OSC light optical path between from an OSC transmitter to a multiplexer, and the OSC optical amplifier is controlled so that the power... Agent: Staas & Halsey LLP

20090169211 - Performance compensated tx/rx optical devices: A wavelength division multiplexing system has a wavelength division multiplexer and a wavelength division demultiplexer. The wavelength division demultiplexer is in series with the wavelength division multiplexer to process at least one optical signal to generate at least one processed optical signal. The wavelength division multiplexer and the wavelength division... Agent: Infinera Corporation

20090169213 - Methods and apparatus for optical transmission of digital signals: A system (100) for transmitting digital information includes a transmitting apparatus (102) for generating an optical signal bearing digital information, a dispersive optical channel (104), and a receiving apparatus (110) for receiving the optical signal. The dispersive optical channel (104) is disposed to convey the optical signal from the transmitting... Agent: Woodcock Washburn LLP

20090169214 - Unified optical connector architecture: A system, device, and method are disclosed. In one embodiment the system includes an optical link and a peripheral device optically coupled to the optical link. The system also includes a host controller, such as a graphics, network, or I/O controller. The system also includes a unified optical connector port,... Agent: Intel Corporation C/o Cpa Global

20090169215 - Lighting device: The invention relates to A method for a lighting device, in particular for a display device such as a LCD-TV, projector etc., generating radiation including at least visible light for illumination with at least one light-emitting element (1) being a LED (1) or an OLED, emitting radiation comprising an average... Agent: Philips Intellectual Property & Standards

20090169216 - Optical transmission assembly: An optical transmission assembly consists of an upper cladding; a lower cladding; a core formed between the upper cladding and the lower cladding; a surface light emitting device mounted to an upper surface at one end of the upper cladding, a light emitting surface of the surface light emitting device... Agent: Mcginn Intellectual Property Law Group, PLLC

20090169217 - Byte-interleaving systems and methods for 100g optical transport enabling multi-level optical transmission: The present invention provides byte-interleaving systems and methods for Optical Transport Unit N (OTUN) (i.e. Optical Transport Unit 4 (OTU4)) and 100 Gb/s (100 G) optical transport enabling multi-level optical transmission. The byte-interleaving systems and methods of the present invention support the multiplexing of sub-rate clients, such as 10 Gb/s... Agent: Clements Bernard PLLC

20090169218 - Optical transmission device, optical transmission system, and bandwidth control method: A system and method of transmitting client data encoded according to an 8B/10B encoding between a client side and an optical communication network side, including inserting padding signals in an amount corresponding to a rate difference between a clock on the client side and a clock in the optical transmission... Agent: Staas & Halsey LLP

20090169220 - Adaptive optical signal processing with multimode waveguides: Optical signals are passed in an optical medium using an approach that facilitates the mitigation of interference. According to an example embodiment, a filtering-type approach is used with an optical signal conveyed in an optical fiber, such as a multimode fiber (MMF) or a multimode waveguide. Adaptive spatial domain signal... Agent: Crawford Maunu PLLC

20090169219 - Signal transmission device: Photoelectric converter-sealed members 40 and 60 with photoelectric conversion modules 42 and 62 sealed therein are respectively placed in recesses 32a and 32b formed in the direction of depth of a base plate 30 from its mounting surface. The base plate 30 has internally formed optical waveguides 34. Wirings 44... Agent: Oliff & Berridge, PLC

20090169221 - Optical receiver using beam combining and system using the same: An optical beam combiner is provided, which allows efficient collection of light for various applications: non-line of sight and free space optical communications, remote sensing, optical imaging and others. A multitude of transverse scattered optical beam portions is captured by the multi-aperture array positioned perpendicular to the beam projection direction.... Agent: Celight, Inc.