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: 20240133735
    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: December 29, 2023
    Publication date: April 25, 2024
    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: 20240137118
    Abstract: A device may provide a signal with a first wavelength and a second wavelength to a fiber cable, and may receive an intensity change measurement of backscattered light based on the first wavelength of the signal. The device may receive a differential phase change measurement of the backscattered light based on the second wavelength of the signal, and may determine whether there is a fiber loss change, a fiber length change, and/or a fiber cut associated with the fiber cable based on the intensity change measurement. The device may determine whether there is an abnormal event associated with the fiber cable based on the differential phase change measurement, and may report one or more of the fiber loss change, the fiber length change, the fiber cut, or the abnormal event.
    Type: Application
    Filed: October 18, 2022
    Publication date: April 25, 2024
    Applicant: Verizon Patent and Licensing Inc.
    Inventors: Tiejun J. XIA, Glenn A. WELLBROCK
  • Publication number: 20240068906
    Abstract: A cable identification system is provided. The cable identification system may include a laser pulse generator configured to emit laser pulses into the first optical-fiber cable segment. The cable identification system may include a polarization disturbance device configured to induce a change in polarization of a second optical-fiber cable segment via changing a position of the second optical-fiber cable segment. The cable identification system may include a polarization detection device configured to determine measures of polarization based upon backscattered light received from the first optical-fiber cable segment when the second optical-fiber cable segment has different positions. The polarization detection device may be configured to determine whether the first optical-fiber cable segment is connected to the second optical-fiber cable segment based upon the measures of polarization.
    Type: Application
    Filed: August 31, 2022
    Publication date: February 29, 2024
    Inventors: Tiejun J Xia, Glenn A Wellbrock
  • Patent number: 11916588
    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: Grant
    Filed: April 5, 2021
    Date of Patent: February 27, 2024
    Assignee: Verizon Patent and Licensing Inc.
    Inventors: Tiejun J. Xia, Glenn A. Wellbrock
  • Patent number: 11874160
    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: Grant
    Filed: November 3, 2020
    Date of Patent: January 16, 2024
    Assignees: 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: 20230421932
    Abstract: A device may comprise a first portion and a second portion. The first portion may comprise a plurality of slots configured to receive a plurality of fiber optic cables. Each fiber optic cable may be received in a respective slot of the plurality of slots. The second portion may comprise a plurality of protruding members configured to bend the plurality of fiber optic cables, received in the first portion, to cause the plurality of fiber optic cables to emit light. The second portion may further comprise the light detection unit. The light detection unit may be configured to determine whether light emitted by a fiber optic cable is detected; and provide an indication regarding a port of the plurality of ports based on determining that the light, emitted by the fiber optic cable, is detected. The fiber optic cable may be connected to the port.
    Type: Application
    Filed: June 24, 2022
    Publication date: December 28, 2023
    Applicant: Verizon Patent and Licensing Inc.
    Inventors: Tiejun J. XIA, Glenn A. WELLBROCK
  • Patent number: 11802810
    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: Grant
    Filed: March 9, 2020
    Date of Patent: October 31, 2023
    Assignee: Verizon Patent and Licensing Inc.
    Inventors: Tiejun J. Xia, Glenn A Wellbrock
  • Publication number: 20230324643
    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: June 2, 2023
    Publication date: October 12, 2023
    Applicant: Verizon Patent and Licensing Inc.
    Inventors: Tiejun J. XIA, Glenn A. WELLBROCK
  • Patent number: 11726221
    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: Grant
    Filed: July 20, 2021
    Date of Patent: August 15, 2023
    Assignee: Verizon Patent and Licensing Inc.
    Inventors: Tiejun J. Xia, Glenn A. Wellbrock
  • Patent number: 11719571
    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: Grant
    Filed: November 23, 2020
    Date of Patent: August 8, 2023
    Assignee: Verizon Patent and Licensing Inc.
    Inventors: Tiejun J. Xia, Glenn A. Wellbrock
  • Patent number: 11698505
    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: Grant
    Filed: September 16, 2021
    Date of Patent: July 11, 2023
    Assignee: Verizon Patent and Licensing Inc.
    Inventors: Tiejun J. Xia, Glenn A. Wellbrock
  • 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