Patents by Inventor Tiejun J. Xia

Tiejun J. Xia has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20230083644
    Abstract: A device may provide, to a user device, a first message instructing a technician to move fiber cables and may receive a first signal based on the technician moving the fiber cables and a rest signal based on the technician stopping movement of the fiber cables. The device may calculate a distance, an average peak signal, and a baseline signal based on the first signal and the rest signal and may calculate a data collection window based on the distance, the average peak signal, and the baseline signal. The device may provide, to the user device, a second message instructing the technician to move one fiber cable at a time and may receive second signals based on the technician moving one fiber cable at a time. The device may provide, for display to the user device, the data collection window and indications of the second signals.
    Type: Application
    Filed: September 16, 2021
    Publication date: March 16, 2023
    Applicant: Verizon Patent and Licensing Inc.
    Inventors: Tiejun J. XIA, Glenn A. WELLBROCK
  • Publication number: 20230025986
    Abstract: In some implementations, a system may receive a cable map for a deployed cable. The system may receive vibration data indicating a vibration associated with a first section of the cable. The system may determine a characteristic associated with the first section of the cable based on the vibration. The system may determine a location associated with the characteristic based on the cable map. The system may determine that the first section of the cable is associated with the location based on the location being associated with the characteristic. The system may associate the location and a length of a second section of the cable extending from an initial location to the location. The system may receive an input identifying the length of the second section of the cable and may output the location based on associating the location and the length of the second section of the cable.
    Type: Application
    Filed: July 20, 2021
    Publication date: January 26, 2023
    Applicant: Verizon Patent and Licensing Inc.
    Inventors: Tiejun J. XIA, Glenn A. WELLBROCK
  • Publication number: 20220321211
    Abstract: In some implementations, a device may transmit communication data to a transceiver via an access fiber optic cable. The device may determine that fiber sensing is to be performed for the access fiber optic cable. The device may cease transmission of the communication data for a predetermined time period. The device may generate an optical pulse after ceasing transmission of the communication data. The device may transmit the optical pulse to the transceiver via the access fiber optic cable. The device may receive, prior to expiration of the predetermined time period, a reflected signal from the access fiber optic cable based on the optical pulse. The device may analyze the reflected signal to generate sensing results. The device may perform one or more actions based on the sensing results.
    Type: Application
    Filed: April 5, 2021
    Publication date: October 6, 2022
    Applicant: Verizon Patent and Licensing Inc.
    Inventors: Tiejun J. XIA, Glenn A. WELLBROCK
  • Publication number: 20220163376
    Abstract: In some implementations, a device may obtain responsivity data for segments of a fiber optic cable. The device may receive, from a sensor device, vibration data associated with the fiber optic cable, the vibration data being produced by a vibration source in or on soil associated with the fiber optic cable. The device may normalize, based on the responsivity data, the vibration data. The device may determine, based on the normalized vibration data, a distance of the vibration source from the fiber optic cable. The device may perform one or more actions based on the distance satisfying a distance threshold.
    Type: Application
    Filed: November 23, 2020
    Publication date: May 26, 2022
    Applicant: Verizon Patent and Licensing Inc.
    Inventors: Tiejun J. XIA, Glenn A. WELLBROCK
  • Publication number: 20220136891
    Abstract: A device may receive, from a fiber sensor device, sensing data associated with a fiber optic cable, the sensing data being produced by an activity that poses a threat of damage to the fiber optic cable, and the sensing data identifying: amplitudes of vibration signals, frequencies of the vibration signals, patterns of the vibration signals, times associated with the vibration signals, and locations along the fiber optic cable associated with the vibration signals. The device may process, with a machine learning model, the sensing data to determine a threat level of the activity to the fiber optic cable, the machine learning model having been trained based on historical information regarding detected vibrations, historical information regarding sources of the detected vibrations, and historical information regarding threat levels to the fiber optic cable. The device may perform one or more actions based on the threat level to the fiber optic cable.
    Type: Application
    Filed: November 3, 2020
    Publication date: May 5, 2022
    Applicants: Verizon Patent and Licensing Inc., NEC Laboratories America, Inc., NEC Corporation
    Inventors: Tiejun J. XIA, Glenn A. WELLBROCK, Ming-Fang HUANG, Ting WANG, Yoshiaki AONO
  • Publication number: 20220137595
    Abstract: A device may receive sensing data that is produced by an environment associated with a fiber optic cable. Based on the sensing data, the device may determine a sensing profile, which indicates a measure of vibration as a function of distance along the fiber optic cable and as a function of time. The device may receive new sensing data produced by the environment. The device may determine that the new sensing data satisfies a vibration deviation criteria, relative to the sensing profile, for a duration threshold. By satisfying the vibration deviation criteria for the duration threshold, the new sensing data may indicate that the environment includes an activity associated with an increased likelihood of damage to the fiber optic cable relative to the sensing data. The device may perform one or more actions based on the new sensing data satisfying the vibration deviation criteria for the duration threshold.
    Type: Application
    Filed: November 3, 2020
    Publication date: May 5, 2022
    Applicant: Verizon Patent and Licensing Inc.
    Inventors: Tiejun J. XIA, Glenn A. WELLBROCK
  • Patent number: 11153611
    Abstract: A system includes a hybrid mobile network/television antenna and a routing device connected to the antenna. The hybrid mobile network/television antenna receives content via a broadcast television network and receives content via a mobile network. The routing device includes a first communication interface that connects to the hybrid mobile network/television antenna, and a second communication interface that connects to a user device and receives a request for content from the user device. The routing device selects a network from the broadcast television network or the mobile network. The first communication interface receives the requested content via the selected network, and the routing device forwards the requested content to the user device via the second communication interface.
    Type: Grant
    Filed: May 10, 2017
    Date of Patent: October 19, 2021
    Assignee: Verizon Patent ane Licensing Inc.
    Inventors: Glenn A. Wellbrock, Tiejun J. Xia
  • Publication number: 20210278314
    Abstract: A device may receive, from a sensor device, cable distance data identifying cable distances along the fiber cable to vibrations experienced by the fiber cable from a vibration device. The device may receive location data identifying geographic coordinates associated with the vibrations, and may correlate the cable distance data and the location data to generate correlated data. The device may receive, from the sensor device, data identifying a cable distance along the fiber cable to an alarm condition associated with the fiber cable, and may determine geographic coordinates associated with the alarm condition based on the correlated data and the data identifying the cable distance along the fiber cable to the alarm condition. The device may perform actions based on the geographic coordinates associated with the alarm condition.
    Type: Application
    Filed: March 9, 2020
    Publication date: September 9, 2021
    Inventors: Tiejun J. XIA, Glenn A WELLBROCK
  • Patent number: 11060950
    Abstract: A device may receive, from a sensor device, cable distance data identifying cable distances along a fiber cable to vibrations experienced by the fiber cable, and may receive location data identifying locations associated with the vibrations. The device may correlate the cable distance data and the location data to generate correlated location data, and may store the correlated location data in a data structure. The device may receive, from the sensor device, data identifying a cable distance along the fiber cable to an alarm condition associated with the fiber cable, and may determine a location of the alarm condition based on the correlated location data and the data identifying the cable distance along the fiber cable to the alarm condition. The device may perform actions based on the alarm location.
    Type: Grant
    Filed: March 9, 2020
    Date of Patent: July 13, 2021
    Assignees: Verizon Patent and Licensing Inc., NEC Laboratories America, Inc.
    Inventors: Tiejun J. Xia, Glenn A Wellbrock, Ting Wang, Ming-Fang Huang
  • Publication number: 20200322050
    Abstract: An actuator device can include a plate, an actuator, a connector, and a power unit. The plate can retain a section of an optical fiber at the transmitter end of an optical communication link. The section of the optical fiber can be wrapped in at least a partial loop and held or retained by the plate. The connector can be a mechanical connector that couples the plate to the actuator and enables the plate to move about at least one axis to cause a change in a polarization state of the optical signal carried by the optical fiber. The change in the polarization state is identifiable by a polarized photodetector near a receiver end of the optical communication link. The power unit can provide power to at least the actuator.
    Type: Application
    Filed: April 5, 2019
    Publication date: October 8, 2020
    Inventors: Tiejun J. XIA, Glenn A. WELLBROCK, Joe J. THOMPSON
  • Patent number: 10790908
    Abstract: An actuator device can include a plate, an actuator, a connector, and a power unit. The plate can retain a section of an optical fiber at the transmitter end of an optical communication link. The section of the optical fiber can be wrapped in at least a partial loop and held or retained by the plate. The connector can be a mechanical connector that couples the plate to the actuator and enables the plate to move about at least one axis to cause a change in a polarization state of the optical signal carried by the optical fiber. The change in the polarization state is identifiable by a polarized photodetector near a receiver end of the optical communication link. The power unit can provide power to at least the actuator.
    Type: Grant
    Filed: April 5, 2019
    Date of Patent: September 29, 2020
    Assignee: Verizon Patent and Licensing Inc.
    Inventors: Tiejun J. Xia, Glenn A Wellbrock, Joe J. Thompson
  • Patent number: 10644799
    Abstract: Systems described herein provide antenna elements, each of which contains an antenna array and electronics, built into a fiber optic aerial cable to form a hybrid cable. The hybrid cable has a fiber buffer tube including one or more fiber cores, an outer sheath surrounding the fiber buffer tube, and a distributed array of antenna elements around portions of the outer sheath along a length of the hybrid fiber optic cable. Each of the antenna elements includes an antenna and control electronics for the antenna.
    Type: Grant
    Filed: December 14, 2018
    Date of Patent: May 5, 2020
    Assignee: Verizon Patent and Licensing Inc.
    Inventors: Roland W. Hicks, Jr., Glenn A. Wellbrock, Tiejun J. Xia
  • Patent number: 10491296
    Abstract: A passive optical network (“PON”) integrated tool may be a single device with which to (i) test and measure optical power levels on active fiber links that transfer signaling between PON devices without interfering with the signaling, (ii) test and measure reflectance and signal loss on inactive fiber links on which there is no signaling, (iii) illuminate fiber with visible light for visual integrity verification, and/or (iv) inspect fiber optic cable connectors for minute abnormalities. The PON integrated tool may include pass-through connection adapters with a tap to provide signaling from connected fiber to one or more detectors that measure signaling characteristics at different wavelengths for different PON channels. The PON integrated tool may include other connection adapters for fiber inspection, emission of visible laser light, and/or emission of pulses of light to the connected fiber in order to measure reflectance and signal loss.
    Type: Grant
    Filed: September 12, 2018
    Date of Patent: November 26, 2019
    Assignee: Verizon Patent and Licensing Inc.
    Inventors: Glenn A. Wellbrock, Tiejun J. Xia, Christina M. Bassett, Daniel L. Peterson, Jr.
  • 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
  • Patent number: 10382843
    Abstract: An optical node may include an optical switch and an optical add drop multiplexer (OADM). The optical switch may receive, via a space-division multiplexing (SDM) link that carries optical signals via multiple SDM elements, an optical signal to be switched from a first SDM element to a second SDM element. The multiple SDM elements may include multiple cores of a multi-core fiber, multiple modes of a multi-mode fiber, or multiple fibers of a fiber bundle. The optical switch may switch the optical signal from the first SDM element to the second SDM element. The OADM may add optical signals to an optical network or drop optical signals from the optical network via one or more SDM links that include the SDM link.
    Type: Grant
    Filed: August 24, 2016
    Date of Patent: August 13, 2019
    Assignee: Verizon Patent and Licensing Inc.
    Inventors: Tiejun J. Xia, Glenn A. Wellbrock
  • Publication number: 20190158358
    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: Application
    Filed: January 18, 2019
    Publication date: May 23, 2019
    Inventors: Tiejun J. Xia, Glenn A. Wellbrock
  • Publication number: 20190123825
    Abstract: Systems described herein provide antenna elements, each of which contains an antenna array and electronics, built into a fiber optic aerial cable to form a hybrid cable. The hybrid cable has a fiber buffer tube including one or more fiber cores, an outer sheath surrounding the fiber buffer tube, and a distributed array of antenna elements around portions of the outer sheath along a length of the hybrid fiber optic cable. Each of the antenna elements includes an antenna and control electronics for the antenna.
    Type: Application
    Filed: December 14, 2018
    Publication date: April 25, 2019
    Inventors: Roland W. Hicks, JR., Glenn A. Wellbrock, Tiejun J. Xia
  • Patent number: 10218571
    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: November 29, 2016
    Date of Patent: February 26, 2019
    Assignee: Verizon Patent and Licensing Inc.
    Inventors: Tiejun J. Xia, Glenn A. Wellbrock
  • Patent number: 10218441
    Abstract: Systems described herein provide antenna elements, each of which contains an antenna array and electronics, built into a fiber optic aerial cable to form a hybrid cable. The hybrid cable has a fiber buffer tube including one or more fiber cores, an outer sheath surrounding the fiber buffer tube, and a distributed array of antenna elements integrated along a length of the hybrid fiber optic cable. Each of the antenna elements includes an antenna and control electronics for the antenna.
    Type: Grant
    Filed: March 30, 2017
    Date of Patent: February 26, 2019
    Assignee: Verizon Patent and Licensing Inc.
    Inventors: Roland W. Hicks, Jr., Glenn A. Wellbrock, Tiejun J. Xia
  • Publication number: 20180332313
    Abstract: A system includes a hybrid mobile network/television antenna and a routing device connected to the antenna. The hybrid mobile network/television antenna receives content via a broadcast television network and receives content via a mobile network. The routing device includes a first communication interface that connects to the hybrid mobile network/television antenna, and a second communication interface that connects to a user device and receives a request for content from the user device. The routing device selects a network from the broadcast television network or the mobile network. The first communication interface receives the requested content via the selected network, and the routing device forwards the requested content to the user device via the second communication interface.
    Type: Application
    Filed: May 10, 2017
    Publication date: November 15, 2018
    Inventors: Glenn A. Wellbrock, Tiejun J. Xia