Fault Recovery Patents (Class 398/1)
  • Patent number: 11388536
    Abstract: An audio device includes a casing configured for operation in a first orientation and a second orientation different from the first orientation, an orientation input device disposed on the casing to detect an orientation of the casing relative to the direction of the force of gravity, and a plurality of acoustic drivers disposed on the casing and operable to form a plurality of acoustic interference arrays, each of which is associated with one of a plurality of audio channels. The acoustic drivers of the audio device operate in a first frequency range and modify at least one of the acoustic interference arrays in response to a change in the orientation detected by the orientation input device.
    Type: Grant
    Filed: March 18, 2019
    Date of Patent: July 12, 2022
    Assignee: Bose Corporation
    Inventors: Eric J. Freeman, John Joyce
  • Patent number: 11336873
    Abstract: An illumination system includes an excitation light source module, a light splitting and combining module, a filter module, and a wavelength conversion module. The excitation light source module provides an excitation beam. The light splitting and combining module is disposed on a transmission path of the excitation beam. The excitation beam includes a first and a second excitation beam which are different from each other in polarization state or wavelength range. The filter module is disposed on the transmission path of the excitation beam. The filter module includes a light passing area configured to allow the excitation beam to pass there-through and a light filtering area. The wavelength conversion module is disposed on the transmission path of the excitation beam reflected by the light filtering area and configured to convert the reflected excitation beam into a conversion beam. A projection apparatus including the above illumination system is also provided.
    Type: Grant
    Filed: July 23, 2020
    Date of Patent: May 17, 2022
    Assignee: Coretronic Corporation
    Inventors: Kuan-Ta Huang, Jo-Han Hsu, Chi-Tang Hsieh, Yu-Hua Hsieh
  • Patent number: 11329749
    Abstract: A bandwidth allocation device is included in a communication system having a terminal station device and a terminal device and relaying upstream data, which is received from a communication terminal by a lower device connected to the terminal device, to an upper device connected to the terminal station device. The bandwidth allocation device includes a transmission-permitted period start position determining unit configured to estimate a start position of an arrival period in which the upstream data arrives at the terminal device from the lower device; a transmission-permitted period length determining unit configured to estimate a length of the arrival period based on an amount of upstream data to be transmitted from the lower device to the terminal device; and a bandwidth allocation unit configured to allocate a bandwidth to the terminal device based on the estimated start position and the estimated length of the arrival period.
    Type: Grant
    Filed: February 6, 2018
    Date of Patent: May 10, 2022
    Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Hiroyuki Uzawa, Tatsuya Shimada, Daisuke Hisano, Hiroko Nomura
  • Patent number: 11317177
    Abstract: This disclosure describes devices and methods related to multiplexing optical datasignals. A method may be disclosed. The method may comprise receiving, by a dense wave division multiplexer (DWDM), one or more optical data signals. The method may comprise combining, by the DWDM, the one or more optical data signals. The method may comprise outputting, by the DWDM, the combined one or more optical data signals to a first circulator. The method may also comprise combining, by the WDM, the second optical data signal and one or more third signals, and outputting an egress optical data signal to an optical switch. The method may also comprise outputting, by the optical switch, the egress optical data signal on a primary fiber.
    Type: Grant
    Filed: March 10, 2020
    Date of Patent: April 26, 2022
    Assignee: Cox Communications, Inc.
    Inventor: Harjinder S. Ghuman
  • Patent number: 11296812
    Abstract: In an example method, an edge transceiver receives a first message from a hub transceiver over a first communications channel of an optical communications network, including an indication of available network resources on the optical communications network. The edge transceiver transmits, over a second communications channel of the optical communications network, a second message to the hub transceiver, including an indication of a subset of the available network resources selected by the edge transceiver. The edge transceiver receives, from the hub transceiver, a third message acknowledging receipt of a selection by the edge transceiver and a fourth message confirming an assignment of the selected subset of the available network resources to the edge transceiver. The edge transceiver transmits, using the selected subset of the available network resources, data via the hub transceiver.
    Type: Grant
    Filed: June 4, 2020
    Date of Patent: April 5, 2022
    Assignee: Infinera Corporation
    Inventor: Steven J. Hand
  • Patent number: 11283518
    Abstract: An optical network having a first terminal node, a second terminal node, and a network service system is described. The first terminal node has a plurality of ports and a signal restoration component to create a restored path. The second terminal node has a plurality of ports and a failure monitor to issue a path failure notice. A working path, a protection path, and the restored path are each fiber optic lines optically coupling the first terminal node to the second terminal node to enable a service, each path requiring a quantity of exclusive licenses. The network service system receives a path failure notice indicating a working path failure, calculates the quantity of licenses required by the restored path, releases the quantity of licenses required by the working path and applies at least a portion of the quantity of licenses to the quantity of licenses required by the restored path.
    Type: Grant
    Filed: December 31, 2019
    Date of Patent: March 22, 2022
    Assignee: Infinera Corporation
    Inventors: Rajan Rao, Wayne Wauford, Vinesh Raghavan, Prasanjeet Khuntia
  • Patent number: 11271364
    Abstract: A laser device includes: a semiconductor laser, at least one driver that supplies the semiconductor laser with a current; a modulator that modulates the current supplied to the semiconductor laser; and at least one electric line for conveying the current from at least one driver to the semiconductor laser. The at least one electric line is a wire in a form of a tape, and includes the first conductive layer, the second conductive layer, and the insulating layer which are extending in the longitudinal direction of the wire. The first conductive layer and the second conductive layer are stacked, with the insulating layer in between, in the direction of thickness of the wire.
    Type: Grant
    Filed: March 2, 2020
    Date of Patent: March 8, 2022
    Assignee: Shimadzu Corporation
    Inventor: Kazuma Owaki
  • Patent number: 11271653
    Abstract: [Problem] To provide a novel optical network which can be used as an in-vehicle optical backbone network and exhibits high capacity, low delay, low power consumption, low noise and low cost.
    Type: Grant
    Filed: June 3, 2019
    Date of Patent: March 8, 2022
    Assignee: NATIONAL INSTITUTE OF INFORMATION AND COMMUNICATIONS TECHNOLOGY
    Inventors: Ryo Takahashi, Tetsuya Kawanishi, Naokatsu Yamamoto
  • Patent number: 11251874
    Abstract: High-channel-count optical transceivers can be implemented in photonic integrated circuits (PICs) with shared lasers, splitting the light of each laser between multiple lanes prior to modulation. To reduce waveguide crossings in such PICs, transmitter and self-test functionality may be distributed between separate device layers. Various beneficial transmitter circuitry layouts are disclosed.
    Type: Grant
    Filed: August 31, 2020
    Date of Patent: February 15, 2022
    Assignee: Juniper Networks, Inc.
    Inventor: John Parker
  • Patent number: 11223420
    Abstract: There includes: an optical splitter splitting modulated light into local oscillator light and signal light beams; a phase adjustment unit adjusting phases of signal light beams; an optical amplification unit amplifying signal light beams phase-adjusted; an optical phased array antenna outputting signal light beams amplified to space; a phase control unit synchronizing with a reference signal light beams, output from the optical phased array antenna and multiplexed with the local oscillator light; an acquisition and tracking mechanism adjusting output angles of signal light beams; an angle detection unit detecting arrival angles of received light; and a control unit setting the reference signal to first reference signals having different frequencies, supplementing the received light based on a detection result, setting the reference signal to second reference signals having equal frequencies, and tracking the received light based on the detection result.
    Type: Grant
    Filed: September 25, 2020
    Date of Patent: January 11, 2022
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Eisuke Haraguchi, Toshiyuki Ando, Mana Hosokawa
  • Patent number: 11218220
    Abstract: An example system includes a plurality of hub transceivers and a plurality of edge transceivers. A first hub transceiver is operable to determine that the first hub transceiver is configured to assign a first subset of network resources to a first subset of the edge transceivers for communication over an optical communications network, and determine that a second hub transceiver is configured to assign a second subset of network resources to a second subset of the edge transceivers for communication over the optical communications network. The first hub transceiver is also operable to determine that the first subset of network resources overlaps the second subset of network resources, and in response, transmit a notification of the overlap to a control module of the optical communications network.
    Type: Grant
    Filed: June 4, 2020
    Date of Patent: January 4, 2022
    Assignee: Infinera Corporation
    Inventor: Steven J. Hand
  • Patent number: 11206723
    Abstract: To provide a remote control device for transmitting a light signal having a pulse pattern capable of reducing the possibility of false detection, a communication device including the remote control device and a sensor, a variable device further including an appliance whose state varies by tracking the remote control device, and a lighting device further including a moving light for illuminating the remote control device by tracking the remote control device. The remote control device transits a light signal having a pulse pattern to be detected by a sensor, in which the pulse pattern includes a first ON period, a second ON period, and an OFF period between the first ON period and the second ON period, the first ON period and the second ON period being repeated alternately, the first ON period and the second ON period are more than twice as long as a sampling time T of the sensor, the first ON period and the second ON period are different from each other, and the OFF period is longer than the sampling time T.
    Type: Grant
    Filed: December 17, 2018
    Date of Patent: December 21, 2021
    Assignee: MINEBEA MITSUMI INC.
    Inventors: Yoshihiro Sagawa, Hideaki Kawauchi
  • Patent number: 11190291
    Abstract: An example system includes a hub transceiver and a plurality of edge transceivers. The hub transceiver is operable to transmit, over a first communications channel, a first message to each of the edge transceivers concurrently, including an indication of available network resources on an optical communications network. Each of the edge transceiver is operable to transmit, transmit, over a second communications channel, a respective second message to the hub transceiver including an indication of a respective subset of the available network resources selected by the edge transceiver for use in communicating over the optical communications network. Further, the edge transceiver is operable to receive, from the hub transceiver, a third message acknowledging receipt of a selection and a fourth message confirming an assignment of the selected subset of the available network resources to the edge transceiver.
    Type: Grant
    Filed: June 4, 2020
    Date of Patent: November 30, 2021
    Assignee: Infinera Corporation
    Inventor: Steven J. Hand
  • Patent number: 11177887
    Abstract: The present disclosure is generally directed to a stepped profile for substrates that support “on board” optical subassembly arrangements. The stepped profile enables mounting TOSA modules to the substrate in a recessed orientation to reduce the overall distance between terminals of the substrate and associated components of the TOSA, e.g., RF terminals of the substrate and an LDD of the TOSA. In an embodiment, the stepped profile further simplifies mounting and optical alignment of TOSA modules by providing at least one mechanical stop to engage surfaces of the TOSA modules and limit travel by the same along one or more axis.
    Type: Grant
    Filed: January 8, 2020
    Date of Patent: November 16, 2021
    Assignee: Applied Optoelectronics, Inc.
    Inventors: Kai-Sheng Lin, Hang Xie, Yi Wang
  • Patent number: 11128395
    Abstract: Methods and apparatus are provided for receiving an optical signal. In one aspect, a method includes receiving a first optical signal comprising time division multiplexed transmissions from a plurality of optical transmitters, and determining that a transmission is not received during a time period from a first optical transmitter of the optical transmitters that is scheduled to transmit during the time period. A second optical signal is inserted into the first optical signal during the time period, the second optical signal having at least a non-zero power portion.
    Type: Grant
    Filed: November 14, 2017
    Date of Patent: September 21, 2021
    Assignee: Telefonaktiebolaget LM Ericsson (PubL)
    Inventors: Fabio Cavaliere, Paola Iovanna
  • Patent number: 11109122
    Abstract: A system for using free-space optics to interconnect a plurality of computing nodes can include a plurality of node optical transceivers that are electrically coupled to at least some of the plurality of computing nodes. The system can also include a plurality of router optical transceivers that facilitate free-space optical communications with the plurality of node optical transceivers. Each node optical transceiver among the plurality of node optical transceivers can have a corresponding router optical transceiver that is optically coupled to the node optical transceiver. The system can also include a router that is coupled to the plurality of router optical transceivers. The router can be configured to route the free-space optical communications among the plurality of computing nodes.
    Type: Grant
    Filed: June 30, 2020
    Date of Patent: August 31, 2021
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Winston Allen Saunders, Christian L. Belady, Lisa Ru-Feng Hsu, Hitesh Ballani, Paolo Costa, Douglas M. Carmean
  • Patent number: 11101912
    Abstract: A TORminator module is disposed with a switch linecard of a rack. The TORminator module receives downlink electrical data signals from a rack switch. The TORminator module translates the downlink electrical data signals into downlink optical data signals. The TORminator module transmits multiple subsets of the downlink optical data signals through optical fibers to respective SmartDistributor modules disposed in respective racks. Each SmartDistributor module receives multiple downlink optical data signals through a single optical fiber from the TORminator module. The SmartDistributor module demultiplexes the multiple downlink optical data signals and distributes them to respective servers. The SmartDistributor module receives multiple uplink optical data signals from multiple servers and multiplexes them onto a single optical fiber for transmission to the TORminator module.
    Type: Grant
    Filed: July 12, 2019
    Date of Patent: August 24, 2021
    Assignee: Ayar Labs, Inc.
    Inventors: Vladimir Stojanovic, Alexandra Wright, Chen Sun, Mark Wade, Roy Edward Meade
  • Patent number: 11095386
    Abstract: An ADD/DROP filter and an optical add/drop multiplexer are disclosed. An ADD/DROP filter includes an input port, an output port, an add port connecting to a modulator, and a drop port. The modulator is configured to load a pilot signal to a first optical signal to obtain a second optical signal, and transmit the second optical signal to the add port. A third optical signal is input to the input port. A wavelength difference between the second optical signal and the third optical signal is an integral multiple of a free spectral range. A power detector is connected to the output port and/or the drop port. The power detector is configured to obtain an output optical signal from the output port or the drop port and detect an optical power of the output optical signal.
    Type: Grant
    Filed: May 14, 2020
    Date of Patent: August 17, 2021
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Andrea Melloni, Francesco Morichetti, Ruiqiang Ji, Douglas Aguiar, Maziyar Milanizadeh, Sujie Zhou, Yanbo Li, Long Luo, Li Zeng
  • Patent number: 11087902
    Abstract: A novel branching unit provided. The branching unit may include a first port for connecting a first power conductor disposed in a first optical cable, a second port for connecting a second power conductor disposed in a second optical cable, and a third port for connecting a third power conductor and a fourth power conductor disposed in a branch cable. The third port may include a first sub-port and a second sub-port. The first sub-port may be configured to connect the third power conductor of the branch cable. The second sub-port may be configured to connect the fourth power conductor of the branch cable.
    Type: Grant
    Filed: September 1, 2020
    Date of Patent: August 10, 2021
    Assignee: SUBCOM, LLC
    Inventors: Lara Denise Garrett, Bruce Nyman, Stanley Wisniewski, II, Francis C. Bekampis
  • Patent number: 11063685
    Abstract: This disclosure describes devices and methods related to multiplexing optical data signals. A method may be disclosed for multiplexing one or more optical data signals. The method may comprise receiving, by a dense wave division multiplexer (DWDM), one or more optical data signals. The method may comprise combining, by the DWDM, the one or more optical data signals. The method may comprise outputting, by the DWDM, the combined one or more optical data signals to one or more wave division multiplexer (WDM). The method may comprise combining, by the one or more WDM, the combined one or more optical data signals and one or more second optical data signals, and outputting an egress optical data signal comprising the combined one or more optical data signals and one or more second optical data signals.
    Type: Grant
    Filed: December 23, 2019
    Date of Patent: July 13, 2021
    Assignee: Cox Communications, Inc.
    Inventors: Harjinder S. Ghuman, Christopher L. Palmquist, David Job, Robert Kuse
  • Patent number: 11057105
    Abstract: A monitoring device 1 includes an individual alarm reception unit 10 configured to receive individual alarms issued from a plurality of devices constituting an optical transmission network, a table 20 in which a search operator for searching for necessary information, that is information required for treating the individual alarms in the same manner when specifications of the individual alarms are different from each other, is associated with information included in the individual alarms, a search operator extraction unit 30 configured to extract the search operator using the information included in each of the individual alarms as a key, a rule 40 in which the search operator is associated with the necessary information; and a unified alarm information generation unit 50 configured to search the rule 40 using the search operator as a key, compare the information included in the individual alarms with the necessary information corresponding to the search operator, and add information, that is included in the
    Type: Grant
    Filed: February 14, 2019
    Date of Patent: July 6, 2021
    Assignee: Nippon Telegraph and Telephone Corporation
    Inventors: Hiroyuki Oyanagi, Osamu Okino, Yuichiro Ishizuka
  • Patent number: 10999656
    Abstract: This disclosure describes devices and methods related to multiplexing optical data signals. A method may be disclosed for multiplexing one or more optical data signals. The method may comprise receiving, by a dense wave division multiplexer (DWDM), one or more optical data signals. The method may comprise combining, by the DWDM, the one or more optical data signals. The method may comprise outputting, by the DWDM, the combined one or more optical data signals to one or more wave division multiplexer (WDM). The method may comprise combining, by the one or more WDM, the combined one or more optical data signals and one or more second optical data signals, and outputting an egress optical data signal comprising the combined one or more optical data signals and one or more second optical data signals.
    Type: Grant
    Filed: December 23, 2019
    Date of Patent: May 4, 2021
    Assignee: Cox Communications, Inc.
    Inventors: Harjinder S. Ghuman, Jeffrey L. Finkelstein, David Job, Robert Kuse, Christopher Palmquist
  • Patent number: 10983274
    Abstract: A broadband optical wavelength multiplexer/demultiplexer is provided. Two waveguides are arranged such that, in a case where a connection position where one of the two waveguides is connected to a first slab waveguide is set closer to the other waveguide by a channel frequency interval ?f, a central position between the two waveguides aligns with a central position on a connection end surface of the first slab waveguide, and two waveguide groups of an output waveguide are arranged such that a central position between the two waveguide groups aligns with a central position of a second slab waveguide, and an interval between a connection position where the other waveguide is connected to the first slab waveguide and the central position on the connection end surface of the first slab waveguide is set equal to an interval between a connection position where the waveguide groups are connected to the second slab waveguide.
    Type: Grant
    Filed: November 21, 2018
    Date of Patent: April 20, 2021
    Assignee: NTT ELECTRONICS CORPORATION
    Inventors: Daisuke Ogawa, Youichi Nishizato
  • Patent number: 10965393
    Abstract: An optical communication network includes a downstream optical transceiver. The downstream optical transceiver includes at least one coherent optical transmitter configured to transmit a downstream coherent dual-band optical signal having a left-side band portion, a right-side band portion, and a central optical carrier disposed within a guard band between the left-side band portion and the right-side band portion. The network further includes an optical transport medium configured to carry the downstream coherent dual-band optical signal from the downstream optical transceiver. The network further includes at least one modem device operably coupled to the optical transport medium and configured to receive the downstream coherent dual-band optical signal from the optical transport medium. The at least one modem device includes a downstream coherent optical receiver, and a first slave laser injection locked to a frequency of the central optical carrier.
    Type: Grant
    Filed: June 26, 2019
    Date of Patent: March 30, 2021
    Assignee: Cable Television Laboratories, Inc.
    Inventors: Mu Xu, Zhensheng Jia, Haipeng Zhang, Luis Alberto Campos
  • Patent number: 10966005
    Abstract: A telemetry manager receives, from a network server, global data collection information about network components in an optical network device. The global data collection information includes identifiers for network nodes in the network components from which telemetry data are to be collected, and reporting frequency and encoding format for sending collected telemetry data to the network server. The telemetry manager identifies, from the global data collection information, local data collection information specified for a network component, and sends this information to a telemetry agent in the network component. The telemetry manager receives telemetry data generated by a network node of the network component, where the data is provided according to instructions in the local data collection information. The telemetry manager converts the telemetry data from its native format to an encoding format specified by the global data collection information, and sends the encoded telemetry data to the network server.
    Type: Grant
    Filed: March 11, 2019
    Date of Patent: March 30, 2021
    Assignee: Infinera Corporation
    Inventors: Abhinava Sadasivarao, Sharfuddin Syed, Sachin Jain, Lu Biao, Ashok Kunjidhapatham, Anthony Jorgenson, Tjandra Trisno, Mana Palai, Biju Mathew, Mohit Misra, Balaji Gopalakrishnan
  • Patent number: 10892822
    Abstract: An optical network including a processing device configured to receive from photodetectors, information indicative of a time period between loss of light received through a first optical fiber and loss of light received through a second optical fiber. The first optical fiber has a first latency and the second optical fiber has a second latency. The first optical fiber and the second optical fiber extend along a common path through the optical network: a first end of the path being defined by the photodetectors and a second end of the path being defined by a second location in the optical network. The processor is configured to calculate, based on the timing information and a difference in latency between the first optical fiber and the second optical fiber, a distance along the common path from the photodetectors to an event resulting in the losses of light.
    Type: Grant
    Filed: January 29, 2018
    Date of Patent: January 12, 2021
    Assignee: British Telecommunications Public Limited Company
    Inventor: Neil Parkin
  • Patent number: 10863956
    Abstract: A Nuclear Medicine (N-M) imaging system including a gantry having a stationary stator and a rotor rotatably mounted on the stator and including detection units. The rotor is driven by a rotor driving assembly including a linear encoder. The detection units mounted on the rotor include scanning columns having one or more Multi-Pixel Photon Counter (MPC) mounted on one or more extendable arm. The gantry also includes flat cables connecting the controller with gantry components, e.g., the scanning column Multi-Pixel Photon Counters (MPC). The scanning columns are pivotably moveable by a scanning column driver system including a rotary encoder.
    Type: Grant
    Filed: October 18, 2018
    Date of Patent: December 15, 2020
    Assignee: Spectrum Dynamics Medical Limited
    Inventors: Yoel Zilberstien, Nathaniel Roth, Idan Fogel, Baha Eldeen Kassem, Sajed Haj-Yahya
  • Patent number: 10854070
    Abstract: A load control system may include multiple control devices that may send load control messages to load control devices for controlling an amount of power provided electrical loads. To prevent collision of the load control messages, the load control messages may be transmitted using different wireless communication channels. Each wireless communication channel may be assigned to a load control group that may include control devices and load control devices capable of communicating with one another on the assigned channel. A control device may send load control messages to a load control device within a transmission frame allocated for transmitting load control messages. The transmission frame may include equal sub-frames and load control messages may be sent at a random time within each sub-frame. Control devices may detect a status event within a sampling interval to offset transmissions from multiple control devices based on detection of the same event.
    Type: Grant
    Filed: January 13, 2017
    Date of Patent: December 1, 2020
    Assignee: Lutron Technology Company LLC
    Inventors: John H. Bull, Jordan H. Crafts, James P. Steiner
  • Patent number: 10848250
    Abstract: 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 the central office and twisted wire pair, coaxial cable or Ethernet cable transmission lines from the subscriber terminal, techniques related to local powering of a network element or drop site by the subscriber terminal or subscriber premise remote powering device are provided. Certain advantages and/or benefits are achieved using the present invention, such as freedom from any requirement for additional meter installations or meter connection charges and does not require a separate power network.
    Type: Grant
    Filed: August 30, 2019
    Date of Patent: November 24, 2020
    Inventors: Alexander Ivan Soto, Walter Glen Soto
  • Patent number: 10838816
    Abstract: A method, system and computer program product are provided for detecting state and sparing of optical Peripheral Component Interconnect Express (PCI-Express or PCIE) cable channels attached to an IO drawer. System firmware is provided for implementing health check functions and state detection and sparing functions. One or more optical cables are connected between a host bridge and an PCIE enclosure, each optical cable includes one or more spare optical channels. An identified failed optical channel is rerouted to the spare optical channel.
    Type: Grant
    Filed: November 29, 2017
    Date of Patent: November 17, 2020
    Assignee: International Business Machines Corporation
    Inventors: Jesse P. Arroyo, Ellen M. Bauman, Timothy R. Block, Christoper J. Engel, Kaveh Naderi, Gregory M. Nordstrom, Harald Pross, Thomas R. Sand
  • Patent number: 10806524
    Abstract: In one embodiment, a surgical instrument includes a housing linkable with a manipulator arm of a robotic surgical system, a shaft operably coupled to the housing, a force transducer on a distal end of the shaft, and a plurality of fiber optic strain gauges on the force transducer. In one example, the plurality of strain gauges are operably coupled to a fiber optic splitter or an arrayed waveguide grating (AWG) multiplexer. A fiber optic connector is operably coupled to the fiber optic splitter or the AWG multiplexer. A wrist joint is operably coupled to a distal end of the force transducer, and an end effector is operably coupled to the wrist joint. In another embodiment, a robotic surgical manipulator includes a base link operably coupled to a distal end of a manipulator positioning system, and a distal link movably coupled to the base link, wherein the distal link includes an instrument interface and a fiber optic connector optically linkable to a surgical instrument.
    Type: Grant
    Filed: August 23, 2018
    Date of Patent: October 20, 2020
    Assignee: Intuitive Surgical Operations, Inc.
    Inventors: Stephen J. Blumenkranz, Gregory W. Dachs, II, Ian E. McDowall, Christopher J. Hasser
  • Patent number: 10797792
    Abstract: Information from optical modules can be combined with information from network switches to help detect and pinpoint problems along a network communications path. A control path between a network switch and a microcontroller of an optical module can be used to obtain monitoring and debugging data from a digital signal processor (DSP) of the optical module. The DSP data can be used with performance data from the network switch to separately determine the health of the electrical and optical sections of the communications link. The ability to pinpoint problems with the communications link enables appropriate remedial actions to be determined and taken automatically.
    Type: Grant
    Filed: December 12, 2018
    Date of Patent: October 6, 2020
    Assignee: Amazon Technologies, Inc.
    Inventors: Omid Momtahan, Waruna Fernando, Poorya Saghari, Venkata Satish Kumar Vangala
  • Patent number: 10777336
    Abstract: A novel branching unit provided. The branching unit may include a first port for connecting a first power conductor disposed in a first optical cable, a second port for connecting a second power conductor disposed in a second optical cable, and a third port for connecting a third power conductor and a fourth power conductor disposed in a branch cable. The third port may include a first sub-port and a second sub-port. The first sub-port may be configured to connect the third power conductor of the branch cable. The second sub-port may be configured to connect the fourth power conductor of the branch cable.
    Type: Grant
    Filed: April 12, 2019
    Date of Patent: September 15, 2020
    Assignee: SubCom, LLC
    Inventors: Lara Denise Garrett, Bruce Nyman, Stanley Wisniewski, II, Francis C. Bekampis
  • Patent number: 10740607
    Abstract: The present invention discloses a method for determining a target through intelligent following of an unmanned aerial vehicle. The method includes: obtaining an image returned by an unmanned aerial vehicle; obtaining, according to a click of a user on the image returned by the unmanned aerial vehicle, a region picture in which the user is interested; loading a deep learning network model, inputting the obtained region picture to the deep learning network model, and outputting, by using the deep learning network model, a plurality of candidate circumscribed frames for framing targets in the region picture and probabilities that the targets in the candidate circumscribed frames belong to preset categories; and determining, according to the candidate circumscribed frames and the probabilities that the targets in the candidate circumscribed frames belong to the preset categories, whether a target image exists in the region picture.
    Type: Grant
    Filed: May 15, 2018
    Date of Patent: August 11, 2020
    Assignee: AUTEL ROBOTICS CO., LTD.
    Inventor: Jiangyuan Mei
  • Patent number: 10707963
    Abstract: A network design method includes calculating, from the number of wavelength filters on a transmission route of an optical signal, a bandwidth of the optical signal after narrowing by the wavelength filters, selecting, from a plurality of combinations of a multi-level modulation system and a baud rate about the optical signal set in a transmitting apparatus, one or more first combinations about which a lower-limit value of the bandwidth of the optical signal in each of the combinations is equal to or smaller than the bandwidth of the optical signal after narrowing, and selecting a second combination from the one or more first combinations based on a minimum value of an OSRN of the optical signal in the selected combinations.
    Type: Grant
    Filed: March 5, 2019
    Date of Patent: July 7, 2020
    Assignee: FUJITSU LIMITED
    Inventor: Taizo Maeda
  • Patent number: 10700784
    Abstract: A small form factor pluggable (“SFP”) transceiver for use in a communications network includes a transmitter adapted to be coupled to the network for supplying signals to the network, a receiver adapted to be coupled to the network for receiving signals from the network, and a programmable signal processing module coupled to the transmitter and the receiver and adapted to be programmed from a remote station coupled to the network. The module can be programmed to perform at least one service or management function on the network.
    Type: Grant
    Filed: October 31, 2018
    Date of Patent: June 30, 2020
    Assignee: Accedian Networks Inc.
    Inventors: Claude Robitaille, Patrick Ostiguy
  • Patent number: 10693562
    Abstract: An encoding device includes an encoding unit, DA converters, light sources, intensity modulators, and wavelength multiplexers. The encoding unit adds (NM/2) to an encoded signal having a negative minimum value in a range of the encoded signal among encoded signals of N channels of (NM+1) values obtained by calculating an inner product of a Hadamard matrix of N rows and N columns and a matrix having elements of N intensity signals of (M+1) values. The DA converters of the channels convert the encoded signals of the channels from digital signals into electrical analog signals. The light sources output light of wavelengths for use in the channels. The light intensity modulators of the channels intensity-modulate the light output from the light sources with the encoded signals converted into the electrical analog signals by the DA converters. The wavelength multiplexer outputs a wavelength-multiplexed signal obtained by wavelength-multiplexing the light intensity-modulated by the light intensity modulators.
    Type: Grant
    Filed: October 16, 2017
    Date of Patent: June 23, 2020
    Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Shuto Yamamoto, Akira Masuda, Yoshiaki Sone, Mitsunori Fukutoku
  • Patent number: 10651945
    Abstract: An encoding device includes an encoding unit, DA converters, light sources, intensity modulators, and wavelength multiplexers. The encoding unit adds (NM/2) to an encoded signal having a negative minimum value in a range of the encoded signal among encoded signals of N channels of (NM+1) values obtained by calculating an inner product of a Hadamard matrix of N rows and N columns and a matrix having elements of N intensity signals of (M+1) values. The DA converters of the channels convert the encoded signals of the channels from digital signals into electrical analog signals. The light sources output light of wavelengths for use in the channels. The light intensity modulators of the channels intensity-modulate the light output from the light sources with the encoded signals converted into the electrical analog signals by the DA converters. The wavelength multiplexer outputs a wavelength-multiplexed signal obtained by wavelength-multiplexing the light intensity-modulated by the light intensity modulators.
    Type: Grant
    Filed: October 16, 2017
    Date of Patent: May 12, 2020
    Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Shuto Yamamoto, Akira Masuda, Yoshiaki Sone, Mitsunori Fukutoku
  • Patent number: 10636264
    Abstract: A security system is provided for a building. The security system includes a fiber optic cable arranged in various locations in the building for Distributed Vibration Sensing (DVS) and Distributed Acoustic Sensing (DAS) at the various locations. The security system further includes a machine-learning-based analyzer for selectively providing any of an early warning and a prevention of various detected conditions responsive to a machine-learning-based analysis of results from the DVS and the DAS.
    Type: Grant
    Filed: December 21, 2018
    Date of Patent: April 28, 2020
    Assignee: NEC Corporation
    Inventors: Ming-Fang Huang, Ting Wang
  • Patent number: 10630416
    Abstract: In wavelength division multiplexing (WDM) systems, one optical multiplexing section (OMS) can support several channels. During a network reconfiguration, the number or channel index of the channels in the OMS may change, which may result in a change in gain for other channels in the OMS due to the channel loading dependant gain properties of many optical amplifiers. Equalization is therefore required in order to reduce power excursion for the channels in the OMS. Using a model for the channel loading dependent gain of optical amplifiers, equalization may be performed more quickly than using measurement-based equalization methods. The model predicts the change in gain for the channels in an OMS following network reconfiguration, and allows for an equalizer to quickly or pre-emptively adjust for the changes. This model may include an artificial neural network, which is trained using some of the possible channel loading conditions for the OMS.
    Type: Grant
    Filed: April 11, 2018
    Date of Patent: April 21, 2020
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Zhiping Jiang, Yuren You
  • Patent number: 10595276
    Abstract: A method, a device, and a non-transitory computer-readable storage medium are described in which a Listen Before Talk-based dynamic energy detection service is provided. The dynamic energy detection service includes provisioning a dynamic threshold value that is used during a clear channel assessment procedure. The dynamic threshold value may be increased or decreased by an adjustment value depending on the success or failure of a data transmission indicated by an end device.
    Type: Grant
    Filed: September 6, 2018
    Date of Patent: March 17, 2020
    Assignee: Verizon Patent and Licensing Inc.
    Inventor: Sachin Vargantwar
  • Patent number: 10527810
    Abstract: Embodiment of present invention provide an optical interconnect apparatus. The apparatus includes an optical signal path; a first set of fibers attached to a first end of the optical signal path via a first wavelength-division-multiplexing (WDM) filter; and a second set of fibers attached to a second end of the optical signal path via a second WDM filter, wherein at least the first set of fibers is a ribbon fiber. Embodiment of present invention further provide an interconnected optical system that includes a first optical transport terminal having a first set of optical signal ports and a second optical transport terminal having a second set of optical signal ports, with the two sets of optical signal ports being interconnected by the optical interconnect apparatus.
    Type: Grant
    Filed: November 27, 2017
    Date of Patent: January 7, 2020
    Assignee: Auxora (Shenzhen) Inc.
    Inventors: Jinghui Li, Yuan Liu, Haiquan Zhang, Xiaodong Huang
  • Patent number: 10523338
    Abstract: An apparatus comprises a substrate; a laser emitter arranged on the substrate; a photodiode arranged on the substrate; resin encapsulating the laser emitter and the photodiode, wherein the resin includes a top surface above the laser emitter and photodiode; and a lens arranged on the top surface of the resin.
    Type: Grant
    Filed: September 29, 2016
    Date of Patent: December 31, 2019
    Assignee: Intel Corporation
    Inventor: Arvind Sundaram
  • Patent number: 10516499
    Abstract: This disclosure describes devices and methods related to multiplexing optical data signals. A method may be disclosed for multiplexing one or more optical data signals. The method may comprise receiving, by a dense wave division multiplexer (DWDM), one or more optical data signals. The method may comprise combining, by the DWDM, the one or more optical data signals. The method may comprise outputting, by the DWDM, the combined one or more optical data signals to one or more wave division multiplexer (WDM). The method may comprise combining, by the one or more WDM, the combined one or more optical data signals and one or more second optical data signals, and outputting an egress optical data signal comprising the combined one or more optical data signals and one or more second optical data signals.
    Type: Grant
    Filed: December 27, 2018
    Date of Patent: December 24, 2019
    Assignee: Cox Communications, Inc.
    Inventors: Harjinder S. Ghuman, Christopher Palmquist, David Job, Robert Kuse
  • Patent number: 10516922
    Abstract: This disclosure describes devices and methods related to multiplexing optical data signals. A method may be disclosed for multiplexing one or more optical data signals. The method may comprise receiving, by a dense wave division multiplexer (DWDM), one or more optical data signals. The method may comprise combining, by the DWDM, the one or more optical data signals. The method may comprise outputting, by the DWDM, the combined one or more optical data signals to one or more wave division multiplexer (WDM). The method may comprise combining, by the one or more WDM, the combined one or more optical data signals and one or more second optical data signals, and outputting an egress optical data signal comprising the combined one or more optical data signals and one or more second optical data signals.
    Type: Grant
    Filed: August 3, 2018
    Date of Patent: December 24, 2019
    Assignee: Cox Communications, Inc.
    Inventors: Harjinder S. Ghuman, Jeffrey L. Finkelstein, David Job, Robert Kuse, Chris Palmquist
  • Patent number: 10516490
    Abstract: An apparatus comprises a substrate; a laser emitter arranged on the substrate, wherein laser energy emitted by the laser emitter includes a center frequency; a photodiode arranged on the substrate; and a laser bandpass filter arranged above the photodiode, wherein the bandpass filter has a passband that excludes the center frequency of the laser energy.
    Type: Grant
    Filed: September 29, 2016
    Date of Patent: December 24, 2019
    Assignee: Intel Corporation
    Inventor: Arvind Sundaram
  • Patent number: 10505626
    Abstract: A communication apparatus including: an optical multiplexer that is configured to receive one or more optical signals for transmitting data, and generate a wavelength multiplexed signal that is an optical signal obtained by multiplexing the one or more optical signals; a first conversion signal generator that is configured to select a signal of a first wavelength from the wavelength multiplexed signal generated by the optical multiplexer, and to generate a conversion signal by converting the signal of a first wavelength being selected into a signal of a second wavelength; and a first signal selector that is configured to receive the wavelength multiplexed signal generated and the conversion signal, and to select and output at least one of a signal included in the wavelength multiplexed signal and the conversion signal, for each wavelength of a signal included in the wavelength multiplexed signal and the conversion signal.
    Type: Grant
    Filed: June 20, 2016
    Date of Patent: December 10, 2019
    Assignee: NEC CORPORATION
    Inventor: Takanori Inoue
  • Patent number: 10498438
    Abstract: A system and method for automatically calibrating loopback data in a line monitoring system of an optical communication system. Extra peaks in loopback data are calibrated out of the loopback data used by the system by identifying pairs of peaks in the loopback data associated with test signal transmissions through the same high loss loopback path from opposite ends of the optical transmission path.
    Type: Grant
    Filed: January 19, 2018
    Date of Patent: December 3, 2019
    Assignee: Subcom, LLC
    Inventors: Yunlu Xu, Richard Kram, Jonathan M. Liss
  • Patent number: 10484267
    Abstract: A computerized system for performing preparation operations for a maintenance activity that causes a disruption in a communication path of traffic over a multilayer network. The system comprising: a maintenance tool configured to coordinate maintenance activities of the multi-layer network based on maintenance activity-data, a storage unit to store the maintenance activity data; and a multi-layer control system comprising a processor, wherein said processor is configured to: receive from the maintenance tool an indication that one or more maintenance activities are required on an indicated optical resource, determine an affected optical path, determine an affected IP link utilizing said affected optical path; remove traffic from the affected IP link; remove the affected optical path; activate an alternative optical path; configure the packet switching layer to utilize the alternative optical path; and repeat for each alVecied optical path and each affected IP link.
    Type: Grant
    Filed: March 31, 2016
    Date of Patent: November 19, 2019
    Assignee: SEDONASYS SYSTEMS LTD
    Inventor: Ornan Alexander Gerstel
  • Patent number: 10439872
    Abstract: One or more management systems coordinate wavelength configuration patterns of a plurality of multi-wavelength optical transport nodes in an optical network for a first transport period. The one or more management systems determine data traffic demand changes in the optical network; and coordinate wavelength configuration patterns of the plurality of multi-wavelength optical transport nodes in the optical network for a second transport period, that is subsequent to the first transport period, based on the determined data traffic demand changes.
    Type: Grant
    Filed: January 18, 2019
    Date of Patent: October 8, 2019
    Assignee: Verizon Patent and Licensing Inc.
    Inventors: Tiejun J. Xia, Glenn A. Wellbrock