Patents Examined by Mohammad R Sedighian
  • Patent number: 11444695
    Abstract: Optical communication system communicates between an array of originating tiles and an array of terminating tiles. Each array is associated with a lenslet array, such as a two-layer array which has two layers of lenslets. Each originating tile has an array of transmitters and each terminating tile has an array of receivers. Each tile is associated with a common lenslet or lenslet pair. A beamlet from a representative transmitter passes through the lenslet pair adjacent to its tile to become a collimated beam whose angle is related to the location of the transmitter. The collimated beam passes through the receiver lenslet pair adjacent to the tile containing the receiver associated with the representative transmitter, and is focused onto that receiver by that lenslet pair. The system may operate in the reverse direction, wherein the transmitters are transmitter-receivers, the receivers are receiver-transmitters, and a beam from a receiver-transmitter is directed to its corresponding transmitter-receiver.
    Type: Grant
    Filed: September 14, 2020
    Date of Patent: September 13, 2022
    Assignee: Fathom Radiant, PBC
    Inventors: Dane R. Austin, William Andregg, Erik C. Nelson, Robert T. Weverka
  • Patent number: 11418266
    Abstract: A power over fiber system includes a power sourcing equipment, a powered device, an extender, and first and second optical fiber cables. The power sourcing equipment outputs feed light. The extender extends a laser wavelength of the feed light. The first optical fiber cable transmits the feed light from the power sourcing equipment to the extender. The second optical fiber cable transmits the feed light from the extender to the powered device. Based on a loss-to-transmission-length characteristic of the laser wavelength before extended by the extender and a loss-to-transmission-length characteristic of the laser wavelength after extended by the extender, the first optical fiber cable has a length that is equal to or shorter than a transmission length where a loss due to the laser wavelength before extended by the extender is equal to a loss due to the laser wavelength after extended by the extender.
    Type: Grant
    Filed: June 29, 2020
    Date of Patent: August 16, 2022
    Assignee: KYOCERA CORPORATION
    Inventors: Takahiro Kobayashi, Shuichi Tamate
  • Patent number: 11398865
    Abstract: A fiber optic distribution terminal includes a cable spool rotatably disposed within an enclosure; an optical power splitter and a termination region carried by the cable spool; an optical cable deployable from the enclosure by rotating the cable spool by pulling on a connectorized end of the optical cable; and splitter pigtails extending between the optical power splitter and the termination region. One fiber of the optical cable extending between the connectorized end and the splitter input. The other fibers of the optical cable extend to a multi-fiber adapter.
    Type: Grant
    Filed: October 26, 2020
    Date of Patent: July 26, 2022
    Inventors: Paul David Hubbard, Wesley Edward Oxlee
  • Patent number: 11394469
    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: December 30, 2020
    Date of Patent: July 19, 2022
    Inventors: Alexander Soto, Walter Soto
  • Patent number: 11387908
    Abstract: Provided is an optical transceiver including a reference tunable laser module configured to generate and output light of a reference wavelength; a first general tunable laser module configured to generate and output light of a first wavelength; and a controller configured to control a tuning operation of the first wavelength of the first general tunable laser module, based on information about a relationship between the reference wavelength and the first wavelength.
    Type: Grant
    Filed: November 30, 2020
    Date of Patent: July 12, 2022
    Assignee: SOLiD, INC.
    Inventor: Bum Soo Park
  • Patent number: 11368225
    Abstract: A satellite relay communication system includes a central terminal. The central terminal includes a passive optical router and a multiplexer. The satellite relay communication system also includes remote terminals, each remote terminal including an optical transceiver configured to send optical signals to the passive optical router, configured to receive optical signals from the passive optical router, and configured to multiplex optical signals received from the passive optical router.
    Type: Grant
    Filed: March 17, 2020
    Date of Patent: June 21, 2022
    Assignee: GENERAL ELECTRIC COMPANY
    Inventor: Glen Peter Koste
  • Patent number: 11362734
    Abstract: Systems and methods for optical modulation index calibration in a CATV network.
    Type: Grant
    Filed: September 25, 2020
    Date of Patent: June 14, 2022
    Assignee: ARRIS Enterprises LLC
    Inventors: Marcel F. Schemmann, Venkatesh G. Mutalik
  • Patent number: 11340411
    Abstract: An optoelectronic module may include a housing enclosing at least one optical transmitter or receiver, a release mechanism configured to engage with a cage sized and shaped to receive the housing, and a retainer including at least one occlusion member sized and shaped to be positioned inside a port of the optoelectronic module and a sleeve member configured to slide with respect to the occlusion member.
    Type: Grant
    Filed: April 21, 2020
    Date of Patent: May 24, 2022
    Assignee: II-VI DELAWARE, INC.
    Inventors: William H. Wang, Bill S. Wang
  • Patent number: 11336368
    Abstract: An example system includes a transceiver and a microcontroller. The microcontroller is configured to receive first messages from a hub node via first network interfaces of the transceiver, and determine first logical identifiers associated with ingress data flows. Further, the microcontroller is configured to receive second messages from leaf nodes via second network interfaces of the transceiver, and determine second logical identifies associated with egress data flows. Further, the microcontroller is configured to generate a resource assignment map based on the first and logical identifiers, and to generate a command to cause the transceiver to transmit the egress data flows in accordance with the resource assignment map. The resource map indicates pairings between the ingress data flows and the egress data flows, and, for each of the pairings, a respective network resource assigned to transmit the egress data flow of the pairing to a respective one of the leaf nodes.
    Type: Grant
    Filed: July 6, 2021
    Date of Patent: May 17, 2022
    Assignee: Infinera Corporation
    Inventors: Rajan Rao, Steven J. Hand, Vasudha Bhaskara
  • Patent number: 11329719
    Abstract: Methods, systems, and apparatuses, among other things, may integrate one or more first alarms reported by routers and Ethernet switches with one or more second alarms reported by reconfigurable optical add/drop multiplexers (ROADMs) and optical transport network (OTN) network elements. Moreover, one or more troubleshooting actions may be performed based on the integrated first alarms and second alarms.
    Type: Grant
    Filed: July 17, 2020
    Date of Patent: May 10, 2022
    Assignee: AT&T Intellectual Property I, L.P.
    Inventor: Mohammad Abidi
  • Patent number: 11322991
    Abstract: A safety supervision system for wireless power transmission, comprising a transmitter having an optical beam generator with safe states for transmitting power to receivers that convert the beam into electrical power. The system control unit stores previously known signatures categorized by predetermined parameters associated with one or more unwanted situations, stores data from sensors, compares this stored data to the signatures, and executes one or more responses based on this comparison. The system may comprise transmitter and/or receiver malfunction detection systems adapted to monitor the transmitter and receiver control units and to cause the optical beam generator to switch to a safe state upon detection of a transmitter or receiver control unit malfunction, and may further comprise a hazard detection system preventing human exposure to beam intensity above a predefined safe level.
    Type: Grant
    Filed: May 15, 2018
    Date of Patent: May 3, 2022
    Assignee: Wi-Charge Ltd.
    Inventors: Ortal Alpert, Ran Sagi, Ori Refael Mor, Lior Golan, Yoav Biderman, Omer Nahmias, Alexander Slepoy, Zohar Levin, Eyal Conforti, Yan Rosh
  • Patent number: 11323183
    Abstract: Examples described herein relate to an analog front-end (AFE). The AFE includes a trans-impedance amplifier to receive an input current and generate a pair of the differential voltage signals based on the input current and a reference current. Further, the AFE includes a dynamic voltage slicer to receive the differential voltage signals at input terminals and supply digital voltages at output terminals. The dynamic voltage slicer includes a preamplifier to generate a pair of intermediate voltages based on the differential voltage signals sampled at a predetermined frequency. The dynamic voltage slicer also includes a voltage latch circuit coupled to the preamplifier, wherein the voltage latch circuit is to regenerate a pair of digital voltages based on the pair of the intermediate voltages. Moreover, the AFE includes a logic latch coupled to the dynamic voltage slicer to provide digital output states based on the pair of the digital voltages.
    Type: Grant
    Filed: November 5, 2020
    Date of Patent: May 3, 2022
    Assignee: Hewlett Packard Enterprise Development LP
    Inventors: Tsung Ching Huang, Jinsung Youn
  • Patent number: 11316589
    Abstract: Provided is an optical transceiver including: an optical transmitter configured to sequentially generate a plurality of optical transmission signals each including transmission wavelength information and output the plurality of optical transmission signals to a connected multiplexer/demultiplexer; and a controller configured to generate the transmission wavelength information for each of the plurality of optical transmission signals.
    Type: Grant
    Filed: December 17, 2020
    Date of Patent: April 26, 2022
    Assignee: SOLiD, INC.
    Inventor: Bum Soo Park
  • Patent number: 11310569
    Abstract: Data center interconnections, which encompass WSCs as well as traditional data centers, have become both a bottleneck and a cost/power issue for cloud computing providers, cloud service providers and the users of the cloud generally. Fiber optic technologies already play critical roles in data center operations and will increasingly in the future. The goal is to move data as fast as possible with the lowest latency with the lowest cost and the smallest space consumption on the server blade and throughout the network.
    Type: Grant
    Filed: September 16, 2019
    Date of Patent: April 19, 2022
    Assignee: Aeponyx Inc.
    Inventors: Francois Menard, Martin BĂ©rard, Jonathan Briere
  • Patent number: 11271648
    Abstract: A system comprising a plurality of points of access deployed in venue having a crowd area located next to an event happening area, each one of the plurality of points of access comprising an optical transmitter adapted to broadcast an encoded media stream in light emissions, a plurality of portable optical receiver units, each having: a connector adapted to be electrically connected to one of a plurality of client devices, an optical receiver adapted to capture the light emissions, and a controller adapted to convert the light emissions into a digital stream forwarded via the connector to a respective client device of the plurality of client devices to allow a presentation of the digital stream on a display of the respective client device by an application executed on the respective client device.
    Type: Grant
    Filed: July 10, 2018
    Date of Patent: March 8, 2022
    Assignee: Supreme Architecture Ltd.
    Inventors: Ido Ben-Yehuda, Yariv Ben-Yehuda
  • Patent number: 11265099
    Abstract: A coherent passive optical network includes a downstream transceiver and first and second upstream transceivers in communication with an optical transport medium. The downstream transceiver includes a downstream processor for mapping a downstream data stream to a plurality of sub-bands, and a downstream transmitter for transmitting a downstream optical signal modulated with the plurality of sub-bands. The first upstream transceiver includes a first local oscillator (LO) for tuning a first LO center frequency to a first sub-band of the plurality of sub-bands, and a first downstream receiver for coherently detecting the downstream optical signal within the first sub-band. The second upstream transceiver includes a second downstream receiver configured for coherently detecting the downstream optical signal within a second sub-band of the plurality of sub-bands. The downstream processor dynamically allocates the first and second sub-bands to the first and second transceivers in the time and frequency domains.
    Type: Grant
    Filed: May 18, 2020
    Date of Patent: March 1, 2022
    Assignee: Cable Television Laboratories, Inc.
    Inventors: Junwen Zhang, Zhensheng Jia, Mu Xu, Haipeng Zhang, Luis Alberto Campos
  • Patent number: 11258511
    Abstract: The present invention pertains to a system and method for operating at least one LED unit of lighting grid comprising a plurality of LED units, wherein the LED units are configured to transmit a VLC signal including a code word. A plurality of user equipment devices captures the light transmitted by the LED unit and determines parameters related to the light, such as a VLC quality parameter, flicker value, light intensity parameter and light colour parameter. Based on these parameters, a controller determines control parameters for the LED unit. As such, a feedback loop is created wherein the LED unit is controlled based on measurements with the user equipment devices.
    Type: Grant
    Filed: October 5, 2018
    Date of Patent: February 22, 2022
    Assignee: eldoLAB Holding B.V.
    Inventors: Marc Saes, Andy Johanna Elisabeth Otten
  • Patent number: 11258508
    Abstract: A transmitter can include a laser operable to output an optical signal; a digital signal processor operable to receive data and provide a plurality of electrical signals based on the data; and a modulator operable to modulate the optical signal to provide a plurality of optical subcarriers based on the plurality of electrical signals. One of the plurality of subcarriers carries first information indicative of a first portion of the data in a first time slot and second information indicative of a second portion of the data in a second time slot. The first information is associated with a first node remote from the transmitter and the second information is associated with a second node remote from the transmitter. A receiver as well as a system also are described.
    Type: Grant
    Filed: March 4, 2020
    Date of Patent: February 22, 2022
    Assignee: Infinera Corporation
    Inventors: Amir Jafari, Kuang-Tsan Wu, David F. Welch, Steven Joseph Hand, Mohamed Osman
  • Patent number: 11239909
    Abstract: Dynamic error-quantizer tuning systems and methods prevent misconvergence to local minima by using a dynamic quantizer circuit that controls reference voltages of three or more comparators that are independently adjusted to modify the transfer function of the dynamic quantizer circuit. A weighted sum of the comparator outputs is subtracted from the input to form an error signal in a control loop. The ratio of the reference voltages is chosen to reduce or eliminate local minima during a convergence of the control loop and is set to values that minimize a mean squared error signal with respect to discrete modulation states of the input after the convergence of the control loop is complete.
    Type: Grant
    Filed: October 23, 2020
    Date of Patent: February 1, 2022
    Assignee: Maxim Integrated Products, Inc.
    Inventor: Charles Razzell
  • Patent number: 11233574
    Abstract: Real-time systems and methods prevent duplication of independent signal streams in a coherent receiver subject to source separation controlled by multiplicative coefficients under adaptive feedback control. In various embodiments, this is achieved by first obtaining a first set of coefficients associated with a first signal stream and a second set of coefficients associated with a second signal stream. In response to the sets of coefficients satisfying a condition, the first set modified into a set of coefficients that is mutually orthogonal with respect to and replaces the second set of coefficients. The resulting series of coefficient values may then be used to perform source separation of independent signal streams without duplicating independent signal streams.
    Type: Grant
    Filed: October 26, 2020
    Date of Patent: January 25, 2022
    Assignee: Maxim Integrated Products, Inc.
    Inventors: Charles Razzell, Edem Ibragimov