Optical communications inventions 01/07

20070019953 - Systems and methods for placing line terminating equipment of optical communication systems in customer points of presence: A system for delivering optical signals to and from an undersea optical cable may include a cable landing station connected to the undersea optical cable and configured to convey a wavelength division multiplexed optical signal from the undersea optical cable. The system may also include a point of presence that... Agent: Harrity Snyder, LLP

20070019954 - Discovery of an adjacent network element within a network data plane: The present invention provides a system, apparatus and method for discovery of network elements, which are adjacent within the network data plane but may or may not be adjacent in the network control plane. In one embodiment of the present invention, digital network elements, with a plurality thereof having a... Agent: Infinera Corporation

20070019955 - Hybrid optical and data networks: A method includes transmitting a list of willingness-to-pays for optical data capacities to an optical network. The optical network has a set of gateway nodes connected directly to nodes of a data network. The optical network is configured to transmit data communications on a plurality of wavelength channels. Each willingness-to-pay... Agent: Lucent Technologies Inc. Docket Administrator

20070019956 - Wavelength division multiplexing passive optical networks to transport access platforms: Wavelength division multiplexing (“WDM”) passive optical networks (“PON”) to transport signals having various access platforms are described. For one embodiment, a WDM PON performs bi-directional communications, and includes an interface. The interface transfers one or more signals having a first platform to a WDM-PON data transmission platform at an access... Agent: Blakely Sokoloff Taylor & Zafman

20070019957 - Dynamic bandwidth allocation apparatus and method in ethernet passive optical network, and epon master apparatus using the same: The invention provides a method and apparatus for allocating a dynamic band width of an EPON and an EPON master apparatus using the same. The bandwidth allocation is cycle based where every predetermined cycle, static gates are generated for all ONUs and dynamic gates are generated according to the reports... Agent: Ladas & Parry LLP

20070019958 - Ir control signal distribution via a communications network: Described herein are technologies directed towards IR-to-network conversion. With the described technology, a system may convert an infrared (IR) control signal from an IR remote controller into a network-transmittable message package and transmit that package via a communications network, such as the Internet (or a network compatible therewith). The IR... Agent: Lee & Hayes PLLC

20070019959 - Apparatus and method for transferring signals between a fiber network and a wireless network antenna: An apparatus and method transfers signals between a fiber network and a wireless network antenna. In a fiber to wireless stage, fiber signals are optically transferred from the fiber network and converted into RF signals compatible with the DOCSIS interface standard. The RF signals are electronically converted into data packets,... Agent: Lang Michener LLP

20070019960 - Light-emitting module: A light-emitting module outputting laser beam emitted from a semiconductor light-emitting element via a lens, the light-emitting module includes a first main plane, a mount portion on the first main plane that mounts the semiconductor light-emitting element, a lens holding portion that holds the lens so that a light axis... Agent: Oliff & Berridge, PLC

20070019961 - Network securitization: Methods and systems are provided of securitizing a network, such as a fiber network and/or a high-speed wireless network to a group of homes. An identification of real property for one of the homes is received. A total loan value is calculated for the real property that includes a network... Agent: Townsend And Townsend And Crew, LLP

20070019962 - Infrated transceiver module that can adjust its transmitting and receiving angle automatically: An infrared transceiver module that can automatically adjust its transmitting and receiving angle is provided. The module is to be mounted on the fixed seats of computer motherboards, interface cards, add-on signal receivers, or remote control devices etc. It comprises an infrared transceiver and a housing unit which further comprises... Agent: Apex Juris, PLLC Tracy M Heims

20070019963 - Pluggable transceiver having guide structure for connector within cage: The present invention provides an optical transceiver for readily engaging a plug of a circuit board with a connector. The optical transceiver is provided with a pair of guides for guiding the plug to the connector while contacting the outer side faces of the connector disposed on a host board.... Agent: Smith, Gambrell & Russell

20070019964 - Modular optical transmitter for wwdm transceivers: A hermetically sealed optical transmitter module for use in an optical transceiver converting and coupling an information-containing electrical signal with an optical fiber. A plurality of semiconductor lasers are provided on a common support in the housing for converting between an information-containing electrical signal and a modulated optical signal corresponding... Agent: Emcore Corporation

20070019965 - Optical time division multiplexing: A method of multiplexing optical signals in a node of an optical network including as inputs a plurality of electrical signals, a plurality of laser transmitters, and as outputs a plurality of optical fibers, (a) generating clock pulses as a first clock frequency; (b) dividing the clock pulses respectively into... Agent: Mark M Friedman Polkinghorn

20070019966 - Optical transceiver module and control method thereof: An optical transceiver module for transmitting an optical signal includes a receiver, a clock data recovery circuit and a controller. The receiver receives the optical signal and converts the optical signal into an electric signal. The clock data recovery circuit receives the electric signal and recovers the clock and data... Agent: Birch Stewart Kolasch & Birch

20070019967 - Optical receiving station, optical communication system, and dispersion controlling method: The invention relates to an optical receiving station, an optical communication system, and a dispersion controlling method for precisely controlling chromatic dispersion in an optical transmission line or chromatic dispersion in an optical transmission line that varies with time. An optical receiving station is provided with a dispersion compensating section... Agent: Staas & Halsey LLP

20070019968 - Method and device for controlling bias of optical modulator: A method and device for adequately controlling the DC bias of each of the optical modulating sections of an optical modulator even while the optical modulator is operating in normal mode and even with a simple structure. An optical modulator bias controller (B) for controlling the DC bias of each... Agent: Chapman And Cutler

20070019969 - Apparatus and method for converting optical signal into electrical signal: An apparatus and a method for converting optical signal into electrical signal are disclosed. The apparatus includes a photo diode (PD) and a charge pump circuit. The PD receives an optical signal. The optical signal is then converted into a current signal. The charge pump circuit is electrically connected to... Agent: Searete LLC Clarence T. Tegreene

20070014570 - Simplified remote interface device and method for determining a failure at an optical fiber link terminated with a remote interface device: The invention relates to a remote interface device (12) for terminating a remote optical fiber link, with a network input (14), a network output (15), a customer input (17) and a customer output (16) for data signals, characterized in that the device (12) is designed such that during normal operation,... Agent: Sughrue Mion, PLLC

20070014571 - Control of parameters in a global optical controller: An optical network system having a global controller capable of controlling all the elements of the network. The controller receives performance data from each optical network element and calculates a performance value for each channel transmitting through the system. The controller then isolates the channel with the minimum performance value... Agent: Borden Ladner Gervais LLP

20070014572 - Bit error rate contour-based optimum decision threshold and sampling phase selection: A method and system for a bit error rate (BER) contour-based optimum decision threshold and sampling phase selection in optical communication systems is disclosed. According to one aspect of the invention, for a selected sampling phase and a decision threshold, high BER values are measured. Low BER values are approximated... Agent: Akin Gump Strauss Hauer & Feld, LLP

20070014573 - Exchange structure and a method of connection configuration between the optical networks: The invention discloses an interconnection structure and a method for configuring path between the optical networks. The optical network includes a first network and a second network, the first network and the second network each has a number of nodes, a first node of the first network connects with a... Agent: Fish & Richardson PC

20070014575 - Method and apparatus for facilitating asymmetric line rates in an ethernet passive optical network: One embodiment of the present invention provides a method for facilitating asymmetric line rates in an Ethernet passive optical network (EPON) which includes a central node and at least one remote node. During operation, the system provides a downstream code-group clock, wherein each cycle thereof corresponds to a code group... Agent: Park, Vaughan & Fleming LLP

20070014574 - Optical communication system having optical amplification function: In optical communications between a base station and a local station, the wavelength of a laser light source for a signal, high LD, in the base station that generates downstream signal light is set to a wavelength with an effect of Raman amplifying an upstream light signal that propagates through... Agent: Mcdermott Will & Emery LLP

20070014576 - Bidirectional add/drop multiplexer: A bidirectional add/drop multiplexer includes first input/output unit inputs a first optical signal multiplexed from a plurality of odd channels and outputs a second optical signal multiplexed from a plurality of added or dropped even channels; a second input/output unit outputs the first optical signal multiplexed from a plurality of... Agent: Cha & Reiter, LLC

20070014577 - Optical communications apparatus and method compatible with electrical communications systems: An optical communications link for an electrical communications system, e.g., an ARINC 429 protocol system, includes a first logic device to convert an input signal of a given level to a first electrical signal of a duration corresponding to such level, a first optical device (transmitter) presenting an optical signal... Agent: Don W. Bulson (parker Hannifin) Renner, Otto, Boisselle & Sklar, LLP

20070014578 - Optical transmission system and dispersion compensator: In an optical transmission system comprising a transmitter, a receiver, and a transmission line that connects the transmitter and the receiver, a dispersion compensator is disposed in the receiver. The transmitter comprises an E/O (electro-optical signal converter) and a post-amplifier. An optical signal that has been RZ-coded is supplied to... Agent: Staas & Halsey LLP

20070014579 - Transmission method and processing unit for a modulated optical signal: A method for transmitting a modulated optical signal (S) comprising a carrier and at least two sidebands (LSB, USB) which are arranged symmetrically to a carrier wavelength (AC) from a transmitter (2) to a receiver (3) via an optical transmission link (4, 4′, 4″) comprises the steps of: separating the... Agent: Sughrue Mion, PLLC

20070009259 - Optical transmission system test apparatus: An OSNR reducer adds a prescribed noise spectrum at a prescribed power level to an input optical signal. The OSNR reducer employs at least one optical amplifier to generate the noise and an optical combiner to combine the input optical signal with the noise. Optionally, the OSNR reducer may have... Agent: Lucent Technologies Inc. Docket Administrator - Room 3j-219

20070009260 - Method and apparatus for providing diagnostic features for an optical transceiver: This invention relates to a method and apparatus for providing diagnostic features for an optical transceiver, in which the optical transceiver uses electronic dispersion compensation (EDC) in order to alleviate distortion of a signal caused by dispersion. The invention provides a method and apparatus for monitoring the performance of an... Agent: Avago Technologies, Ltd. C/o Klaas, Law. O'meara & Malking, P.C.

20070009261 - Optical wdm transmission system having a distributed arrangement of regenerators: A network node is provided for use in a WDM optical transmission system that includes a plurality of network nodes interconnected by communication links. The network node includes an optical switch having at least one input port for receiving from the transmission system a WDM signal having a plurality of... Agent: Mayer & Williams PC

20070009262 - Modular adaptation and configuration of a nework node architecture: The present invention provides a system, apparatus and method for modularly adapting a network node architecture to function in one of a plurality of potential node types. The architecture includes a configurable switching element, integrated optics, and a plurality of modules that allow a “type” of node to be adapted... Agent: North Weber & Baugh LLP

20070009263 - Optical amplifier: An doped fiber optical amplifier featuring an optical component having first wavelength division multiplexer, an isolator and a second wavelength division multiplexer is described. The isolator supports the propagation of optical signals within a predetermined signal wavelength range in one direction. Pump signals having a wavelength within a pump wavelength... Agent: Freedman & Associates

20070009264 - Data transmission method and a system thereof: An optical transmitter generates a transmission signal having a frame as a unit, the frame including a signal pilot signal with fixed amplitude and phase and two data bits to output the generated signal into a transmission line. In a receiver, a splitter splits the signal light from the transmission... Agent: Christie, Parker & Hale, LLP

20070009265 - Optical transmission system using optical signal processing in terminals for improved system performance: An optical communication system configured to operate with optical signals at lower signal to noise ratios than previously contemplated. The communication system includes a receiver having an optical pre-processor coupled between a demultiplexer and a detector. The optical pre-processor includes either an optical polarization section having a polarization rotator and... Agent: Grossman, Tucker, Perreault & Pfleger, PLLC

20070009266 - Multimode optical fibre communication system: A multimode optical fibre communications system, and in particular to a system in which non-linearities in the propagation of the signal through a multimode optical communications channel degrade the signal presented to the receiver. The system includes an optical transmitter unit for connection to a multimode optical fibre transmission link.... Agent: Avago Technologies, Ltd. C/o Klaas, Law, O'meara & Malkin, P.C.

20070009267 - Driving a laser using an electrical link driver: An electrical link driver for a point-to-point link is coupled to a laser. The electrical link driver provides a modulation current to the laser.... Agent: Blakely Sokoloff Taylor & Zafman

20070009268 - System and method for transmitting data in a video signal by modulating a video signal brightness level: A system and method is provided for transmitting data in a video signal by modulating a brightness level of the video signal. The invention comprises a video display unit that is capable of encoding data into a brightness level of a video signal and creating brightness modulated video images for... Agent: Philips Intellectual Property & Standards

20070009269 - Optical return-to-zero phase-shift keying with improved transmitters: An apparatus and a method for transmitting at least a digital optical signal with return-to-zero phase-shift keying, employing a single optical modulator with dual-drive design, the said encoded optical signal having improved spectral efficiency and performances, and being generated by transmitters with simplified scheme; an optical communication system comprising the... Agent: Mario Zitelli

20070003280 - Method and system for determining receiver power for required bit error rate: A method and system for determining a receiver power for a required bit error rate (BER) in an optical communication systems is disclosed. A signal is transmitted using an initial transmitter power and is received at a receiver. A BER contour diagram is created by measuring high BER values and... Agent: Akin Gump Strauss Hauer & Feld, LLP

20070003281 - Active control loop for power control of optical channel groups: A system, apparatus and method are described for deployment of a control loop between optical or electro-optical modules and a multiplexing module to provide a desired power profile of banded optical channel groups. The power output characteristics of the optical or electro-optical modules, the properties of the transmission paths of... Agent: Infinera Corporation

20070003282 - Method and system for accommodating different clock frequencies in an ethernet passive optical network: One embodiment of the present invention provides a system that accommodates different clock frequencies in an EPON. The system receives a signal from the OLT at the ONU and derives an OLT clock. The system also maintains a local clock. The system further receives from the OLT an assignment for... Agent: Park, Vaughan & Fleming LLP

20070003283 - Dynamic allocation of bandwidth in a bidirectional optical transmission system: A bidirectional optical communications system that is operable to dynamically allocate wavelengths for transmission in either direction in an optical fiber. The dynamic allocation is controlled by programmable optical devices. The programmable optical devices may be well known programmable devices such as wavelength selective switches and wavelength blockers or any... Agent: At&t Corp.

20070003284 - Optical communication system: A node is provided in an optical communications network that utilizes a first set of add/drop filter elements for extracting and combining optical signals that are carried on wavelength division multiplexed channels in a first wavelength band. Additionally, an extraction element and a combining element for dropping and adding a... Agent: Ericsson Inc.

20070003285 - Optical signal source wavelength stabilization system and method: Apparatus for stabilizing wavelength of an optical signal output from an optical signal source comprises an optical fiber arranged to receive an optical signal from the optical signal source and an optical tap arranged to couple a control signal out of the optical fiber. An optical signal splitter is arranged... Agent: John H. Lynn

20070003286 - Optical fiber communication system using remote pumping: An optical fiber communication system is provided which uses remote pumping that is capable of improving pumping efficiency and reducing a noise figure. A coupler (20) of a linear repeater (18) couples signal light to pumping light outputted from a pumping light source (19). The outputted signal light and pumping... Agent: Harness, Dickey & Pierce, P.L.C

20070003287 - All optical clock recovery: All optical clock recovery includes a transmitter for generating an optical timing signal. The transmitter includes a semiconductor laser for the production of a dynamically synchronizable timing signal, the laser having an external resonator for feedback of the timing signal to the laser, the feedback having a delay time greater... Agent: Gowling Lafleur Henderson, LLP

20070003288 - Bidirectional hdcp transmission module using single optical fiber: Techniques that provide cost effective optical fiber communication links for HDCP transmission systems and the like are provided. A single fiber for bidirectional communication is enabled, without wavelength selective unit to achieve the HDCP transmission. One embodiment of the present invention has a forward channel using a light source (e.g.,... Agent: Fenwick & West LLP

20070003289 - Integrated infrared transceiver: In one embodiment, apparatus is provided with a substrate on which a photosensor and a light source are mounted. The photosensor is configured to receive light in an optical band about a wavelength of 940 nanometers; and the light source is configured to transmit light in an optical band about... Agent: Avago Technologies, Ltd.

20070003290 - Optical code-routed networks: Communication is provided between at least two of a plurality of stations. A signal is received from a first one of the plurality of stations, and the signal is coded using a first code that is assigned to that station. The coded signal is converted to obtain a further coded... Agent: Telcordia Technologies, Inc.

20070003291 - Distortion cancellation in a transimpedance amplifier circuit: An optical receiver for use in an optical communications system in which an analog signal is transmitted over an optical fiber including a housing with a photodetector coupled to the external optical fiber for receiving an optical communications signal; and a transimpedance amplifier coupled to the electrical output of the... Agent: Emcore Corporation