Patents by Inventor Thomas M. Willis, III

Thomas M. Willis, III 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).

  • Patent number: 11031667
    Abstract: Aspects of the subject disclosure may include, a system that facilitates generating one or more tuning signals supplied to a material positioned along a portion of an outer surface of a transmission medium, the material facilitating generation of electromagnetic waves having a desired wave mode, and generating an electromagnetic wave with the desired wave mode, the electromagnetic wave propagating along the transmission medium without relying on an electrical return path to facilitate propagation of the electromagnetic wave along the transmission medium. Other embodiments are disclosed.
    Type: Grant
    Filed: December 5, 2019
    Date of Patent: June 8, 2021
    Assignee: AT&T Intellectual Property I, L.P.
    Inventors: Paul Shala Henry, Ed Guntin, Giovanni Vannucci, Peter Wolniansky, Thomas M. Willis, III, Robert Bennett, Farhad Barzegar, Irwin Gerszberg, Donald J. Barnickel
  • Patent number: 11031668
    Abstract: Aspects of the subject disclosure may include, for example, a transmission medium for propagating electromagnetic waves. The transmission medium can have a first dielectric material for propagating electromagnetic waves guided by the first dielectric material, and a second dielectric material disposed on at least a portion of an outer surface of the first dielectric material for reducing an exposure of the electromagnetic waves to an environment that adversely affects propagation of the electromagnetic waves on the first dielectric material. Other embodiments are disclosed.
    Type: Grant
    Filed: July 2, 2019
    Date of Patent: June 8, 2021
    Assignee: AT&T Intellectual Property I, L.P.
    Inventors: Paul Shala Henry, Robert Bennett, Farhad Barzegar, Irwin Gerszberg, Donald J. Barnickel, Thomas M. Willis, III
  • Publication number: 20210167511
    Abstract: A transmission device includes a coupler configured to convert a transmit signal to transmitted guided electromagnetic waves that propagate along a surface of a transmission medium without requiring an electrical return path, the coupler further configured to convert to a receive signal, received guided electromagnetic waves that propagate along the surface of the transmission medium without requiring an electrical return path. A housing is configured to provide environmental protection to the coupler. The housing includes an aperture section configured to pass the transmitted guided electromagnetic waves from the coupler through an aperture side of the housing, the aperture section further configured to pass the received guided electromagnetic waves to the coupler through the aperture side of the housing. The housing also includes a non-aperture section configured to absorb radio frequency (RF) signals in a frequency range of the transmit signal and a frequency range the receive signal.
    Type: Application
    Filed: December 2, 2019
    Publication date: June 3, 2021
    Applicant: AT&T Intellectual Property I, L.P.
    Inventors: Paul Shala Henry, Giovanni Vannucci, Irwin Gerszberg, Peter Wolniansky, Robert Bennett, Thomas M. Willis, III, Donald J. Barnickel, Farhad Barzegar
  • Publication number: 20210167503
    Abstract: Aspects of the subject disclosure may include, a device having a cylindrical coupler having a metallic shell that surrounds a transmission medium, wherein the cylindrical coupler launches a radio frequency signal from an aperture of the metallic shell as a guided electromagnetic wave that is bound to an outer surface of the transmission medium, and wherein the guided electromagnetic wave propagates along the outer surface of the transmission medium without requiring any electrical return path. An impedance matching element has a conductive trough within the metallic shell, wherein the impedance matching element couples the radio frequency signal to the cylindrical coupler via a coaxial feed point within the conductive trough, and wherein the conductive trough includes a first end forming a short circuit with the metallic shell and further includes a second end forming an open circuit within the metallic shell.
    Type: Application
    Filed: December 3, 2019
    Publication date: June 3, 2021
    Applicant: AT&T Intellectual Property I, L.P.
    Inventors: Shikik Johnson, Paul Shala Henry, Giovanni Vannucci, Peter Wolniansky, Robert Bennett, Thomas M. Willis, III, Donald J. Barnickel, Farhad Barzegar, Irwin Gerszberg
  • Publication number: 20210167811
    Abstract: Aspects of the subject disclosure may include, a system that facilitates detecting first electromagnetic waves propagating along a transmission medium are experiencing a first propagation loss, inducing second electromagnetic waves along the transmission medium to mitigate the first propagation loss, detecting that the second electromagnetic waves are experiencing a second propagation loss and inducing third electromagnetic waves along the transmission medium to mitigate the second propagation loss. To reduce radiation losses when transitioning from the first electromagnetic waves to second electromagnetic waves and transitioning from the second electromagnetic waves to the third electromagnetic waves, the system can be further adapted to use differing criteria for each transition. Other embodiments are disclosed.
    Type: Application
    Filed: December 3, 2019
    Publication date: June 3, 2021
    Applicant: AT&T Intellectual Property I, L.P.
    Inventors: Paul Shala Henry, Peter Wolniansky, Farhad Barzegar, Irwin Gerszberg, Robert Bennett, Thomas M. Willis, III, Donald J. Barnickel, Giovanni Vannucci
  • Publication number: 20210167806
    Abstract: Aspects of the subject disclosure may include, a system that facilitates receiving electromagnetic waves having polarized modes propagating along a transmission medium, detecting according to an analysis of the electromagnetic waves that the transmission medium is birefringent thereby causing a differential delay between the polarized modes, and adjusting a configuration of a receiver receiving the electromagnetic waves to mitigate the differential delay between the polarized modes. Other embodiments are disclosed.
    Type: Application
    Filed: December 3, 2019
    Publication date: June 3, 2021
    Applicant: AT&T Intellectual Property I, L.P.
    Inventors: Byoung-Jo J. Kim, Paul Shala Henry, Peter Wolniansky, Farhad Barzegar, Irwin Gerszberg, Robert Bennett, Thomas M. Willis, III, Donald J. Barnickel, Giovanni Vannucci
  • Publication number: 20210167812
    Abstract: Aspects of the subject disclosure may include, a system that facilitates determining from a training session with a waveguide system that one or more polarized modes of electromagnetic waves propagating along a transmission medium are experiencing differing propagation delays and adjusting a coupler to mitigate the differing propagation delays. Other embodiments are disclosed.
    Type: Application
    Filed: December 3, 2019
    Publication date: June 3, 2021
    Applicant: AT&T Intellectual Property I, L.P.
    Inventors: Paul Shala Henry, Farhad Barzegar, Donald J. Barnickel, Giovanni Vannucci, Irwin Gerszberg, Robert Bennett, Ed Guntin, Peter Wolniansky, Thomas M. Willis, III
  • Patent number: 11025300
    Abstract: Aspects of the subject disclosure may include, for example, a transmission medium having a core. A conductive layer forms an uninsulated outer surface of the transmission medium. The conductive layer is configured to impede accumulation of water to support propagation of first electromagnetic waves guided by the uninsulated outer surface. Other embodiments are disclosed.
    Type: Grant
    Filed: January 8, 2020
    Date of Patent: June 1, 2021
    Assignee: AT&T Intellectual Property I, L.P.
    Inventors: Farhad Barzegar, Donald J. Barnickel, Robert Bennett, Irwin Gerszberg, Paul Shala Henry, Thomas M. Willis, III
  • Patent number: 11025460
    Abstract: In accordance with one or more embodiments, a cabling system can include a plurality of cables, and a tapered supporting structure coupled to the plurality of cables. The tapered supporting structure can facilitate exposure of an endpoint of each cable of the plurality of cables, and the endpoint of each cable of the plurality of cables can be coupled to a communication device that facilitates transmitting electromagnetic waves that propagate along the plurality of cables without requiring an electrical return path. Other embodiments are disclosed.
    Type: Grant
    Filed: October 6, 2017
    Date of Patent: June 1, 2021
    Assignee: AT&T Intellectual Property I, L.P.
    Inventors: Paul Shala Henry, Giovanni Vannucci, Thomas M. Willis, III, Robert Bennett, Irwin Gerszberg, Farhad Barzegar, Donald J. Barnickel, Martin Birk, Shikik Johnson
  • Patent number: 11018401
    Abstract: In accordance with one or more embodiments, a dielectric coupler includes a neck portion configured to receive a first electromagnetic wave from a hollow waveguide. A flared portion is configured to generate, responsive to the first electromagnetic wave, a second electromagnetic wave along a surface of a transmission medium, wherein the flared portion at least partially surrounds the transmission medium, wherein the second electromagnetic wave propagates along the surface of the transmission medium without requiring an electrical return path. A tapered portion is configured to interface the neck portion to the flared portion.
    Type: Grant
    Filed: June 6, 2019
    Date of Patent: May 25, 2021
    Assignee: AT&T Intellectual Property I, L.P.
    Inventors: Paul Shala Henry, Giovanni Vannucci, Thomas M. Willis, III
  • Patent number: 11018525
    Abstract: Aspects of the subject disclosure may include, generating, by a waveform generator, an alternating waveform by selectively enabling one or more switches coupled to a storage device, and supplying, by the waveform generator, the alternating voltage waveform to a winding coupled to a magnetic core of an inductive power supply to modify an alternating magnetic flux in the magnetic core from current alone flowing through a transmission medium coupled to the inductive power supply. Other embodiments are disclosed.
    Type: Grant
    Filed: December 7, 2017
    Date of Patent: May 25, 2021
    Assignee: AT&T Intellectual Property 1, L.P.
    Inventors: Giovanni Vannucci, Thomas M. Willis, III, Paul Shala Henry
  • Patent number: 10992343
    Abstract: In accordance with one or more embodiments, a communication system includes a transmitter configured to generate a first communication signal conveying data. A first coupler is configured to generate first guided electromagnetic waves in response to the first communication signal, wherein the first guided electromagnetic waves are guided by an external surface of a metallic shield of a underground power cable and propagate, without requiring any electrical return path, via a wave mode having a majority of field strength within the protective jacket of the underground power cable.
    Type: Grant
    Filed: December 4, 2019
    Date of Patent: April 27, 2021
    Assignee: AT&T Intellectual Property I, L.P.
    Inventors: Thomas M. Willis, III, Paul Shala Henry, Giovanni Vannucci, Irwin Gerszberg, Peter Wolniansky, Robert Bennett, Donald J. Barnickel, Farhad Barzegar
  • Patent number: 10985436
    Abstract: Aspects of the subject disclosure may include, for example, a transmission medium for propagating electromagnetic waves. The transmission medium can include a core for propagating electromagnetic waves guided by the core without an electrical return path, a rigid material surrounding the core, wherein an inner surface of the rigid material is separated from an outer surface of the core, and a conductive layer disposed on the rigid material. Other embodiments are disclosed.
    Type: Grant
    Filed: May 7, 2019
    Date of Patent: April 20, 2021
    Assignee: AT&T Intellectual Property I, L.P.
    Inventors: Robert Bennett, Paul Shala Henry, Farhad Barzegar, Irwin Gerszberg, Donald J. Barnickel, Thomas M. Willis, III
  • Patent number: 10978773
    Abstract: In accordance with one or more embodiments, a guided wave launcher includes a dielectric cable having an unexposed dielectric core portion that is surrounded by a dielectric cladding portion. The unexposed dielectric core portion is configured to receive a first electromagnetic wave at the end of the dielectric cable and to guide the first electromagnetic wave along the first unexposed dielectric core portion. An exposed dielectric core portion of the dielectric cable, that is not surrounded by the dielectric cladding portion, is configured to couple a portion of the first electromagnetic wave to a transmission medium in proximity to the exposed dielectric core portion, wherein the portion of the electromagnetic wave coupled to the transmission medium propagates as a second electromagnetic wave along the transmission medium without requiring an electrical return path.
    Type: Grant
    Filed: December 3, 2018
    Date of Patent: April 13, 2021
    Assignee: AT&T Intellectual Property I, L.P.
    Inventors: Robert Bennett, Farhad Barzegar, Irwin Gerszberg, Thomas M. Willis, III, Paul Shala Henry
  • Patent number: 10965340
    Abstract: Aspects of the subject disclosure may include, for example, a system for receiving first electromagnetic waves via a transmission medium without utilizing an electrical return path, and inducing second electromagnetic waves at an interface of the transmission medium without the electrical return path. In an embodiment, the first and second electromagnetic waves have a non-optical frequency range. Other embodiments are disclosed.
    Type: Grant
    Filed: January 14, 2020
    Date of Patent: March 30, 2021
    Assignee: AT&T Intellectual Property I, L.P.
    Inventors: Robert Bennett, Paul Shala Henry, Farhad Barzegar, Irwin Gerszberg, Donald J. Barnickel, Thomas M. Willis, III
  • Patent number: 10964995
    Abstract: In accordance with one or more embodiments, a coupling system includes a plurality of dielectric couplers configured to generate, responsive to first electromagnetic waves received via a hollow waveguide, second electromagnetic waves along a surface of a transmission medium, wherein the plurality of dielectric couplers each have an end at differing azimuthal orientations relative to the transmission medium and wherein the second electromagnetic waves propagate along the surface of the transmission medium without requiring an electrical return path. A controller is configured to control a generation of the first electromagnetic waves in accordance with a first set of phases, wherein the second electromagnetic waves generated by the plurality of dielectric couplers combine on the surface of the transmission medium to propagate via a first selected wave mode.
    Type: Grant
    Filed: June 6, 2019
    Date of Patent: March 30, 2021
    Assignee: AT&T Intellectual Property I, L.P.
    Inventors: Paul Shala Henry, Giovanni Vannucci, Thomas M. Willis, III
  • Patent number: 10965344
    Abstract: Aspects of the subject disclosure may include, a system for generating a plurality of electromagnetic waves having differing signal characteristics, each electromagnetic wave of the plurality of electromagnetic waves conveying a communication signal, and the plurality of electromagnetic waves propagating along a transmission medium without radiating into free space. The system can be further configured for generating, by an antenna coupled to the transmission medium, a plurality of wireless signals according to the plurality of electromagnetic waves. The differing signal characteristics of the plurality of electromagnetic waves thereby enables a device to obtain the communication signal by combining the plurality of wireless signals. Other embodiments are disclosed.
    Type: Grant
    Filed: November 29, 2018
    Date of Patent: March 30, 2021
    Assignee: AT&T Intellectual Property 1, L.P.
    Inventors: Paul Shala Henry, Giovanni Vannucci, Thomas M. Willis, III
  • Patent number: 10958307
    Abstract: Aspects of the subject disclosure may include, for example, a coupling device including a first antenna that radiates a first RF signal conveying first data; and a second antenna that radiates a second RF signal conveying the first data from the at least one transmitting device. The first RF signal and second RF signal form a combined RF signal that is bound by an outer surface of a transmission medium to propagate as a guided electromagnetic wave substantially in a single longitudinal direction along the transmission medium. Other embodiments are disclosed.
    Type: Grant
    Filed: November 6, 2017
    Date of Patent: March 23, 2021
    Assignee: AT&T Intellectual Property I, L.P.
    Inventors: Paul Shala Henry, Robert Bennett, Irwin Gerszberg, Farhad Barzegar, Donald J. Barnickel, Thomas M. Willis, III
  • Patent number: 10957977
    Abstract: Aspects of the subject disclosure may include, a system for generating electromagnetic signals that resonate in a cavity having a plurality of reflectors resulting in resonating electromagnetic signals and combining the resonating electromagnetic signals to form an electromagnetic wave that traverses a reflector and couples onto a physical transmission medium. One or more of the reflectors is implemented via a programmable substrate. Other embodiments are disclosed.
    Type: Grant
    Filed: November 14, 2018
    Date of Patent: March 23, 2021
    Assignee: AT&T Intellectual Property I, L.P.
    Inventors: Paul Shala Henry, Robert Bennett, Donald J. Barnickel, Giovanni Vannucci, Farhad Barzegar, Irwin Gerszberg, Thomas M. Willis, III, Bruce E. Stuckman
  • Patent number: 10959072
    Abstract: Aspects of the subject disclosure may include, for example, obtaining, by an unmanned aircraft including a processor, a control signal that causes the unmanned aircraft to fly in proximity to a transmission medium, where the unmanned aircraft includes a carrying system that releasably carries a communication device, and where a positioning of the communication device in proximity to the transmission medium enables the communication device to be physically connected on the transmission medium and enables the communication device to provide communications. Other embodiments are disclosed.
    Type: Grant
    Filed: October 12, 2018
    Date of Patent: March 23, 2021
    Assignee: AT&T Intellectual Property I, L.P.
    Inventors: Ken Liu, Farhad Barzegar, Irwin Gerszberg, Pamela A. M. Bogdan, Donald J. Barnickel, Brandon Pimm, Thomas M. Willis, III, David M. Britz, Paul Shala Henry, Robert Bennett, Dorothy Zarsky, James Gordon Beattie, Jr.