公开(公告)号：US10812136B1

公开(公告)日：2020-10-20

申请号：US16700023

申请日：2019-12-02

Applicant: AT&T Intellectual Property I, L.P.

Inventor： Paul Shala Henry ,  Giovanni Vannucci ,  Irwin Gerszberg ,  Peter Wolniansky ,  Robert Bennett ,  Thomas M. Willis ,  Donald J. Barnickel ,  Farhad Barzegar

IPC: H04B3/54 ,  H04B3/06 ,  H04B3/36 ,  H01P5/16 ,  H04B3/52 ,  H01P1/36 ,  H04B3/46

Abstract: A repeater includes a first coupler that receives a guided electromagnetic wave that propagates along a surface of a transmission medium without requiring an electrical return path, the first coupler generating a received signal in response to the guided electromagnetic wave. A controllable isolator is coupled to the transmission medium between the first coupler and a second coupler. The controllable isolator responds to a control signal by: attenuating a residual portion of the guided electromagnetic wave before reaching the second coupler, when the control signal indicates a repeater mode of operation and passing the residual portion of the guided electromagnetic wave to the second coupler, when the control signal indicates a bypass mode of operation. Repeater circuitry includes processing circuitry configured to generate the control signal and transceiver circuitry configured to generate a transmit signal based on the received signal in the repeater mode of operation.

公开(公告)号：US10128934B2

公开(公告)日：2018-11-13

申请号：US15871703

申请日：2018-01-15

Applicant: AT&T Intellectual Property I, L.P.

Inventor： Paul Shala Henry ,  Robert Bennett ,  Irwin Gerszberg ,  Farhad Barzegar ,  Donald J. Barnickel ,  Thomas M. Willis

IPC: H04B3/52 ,  H04B7/14 ,  H04B1/40 ,  H04B1/00 ,  H04B3/36 ,  H04B7/155

Abstract: Aspects of the subject disclosure may include, for example, a method that includes extracting first channel signals from first guided electromagnetic waves bound to an outer surface of a transmission medium of a guided wave communication system; amplifying the first channel signals to generate amplified first channel signals in accordance with a phase correction; selecting one or more of the amplified first channel signals to wirelessly transmit to at least one client device via an antenna; and guiding the amplified first channel signals to the transmission medium of the guided wave communication system to propagate as second guided electromagnetic waves, wherein the phase correction aligns a phase of the second guided electromagnetic waves to add in-phase with a residual portion of the first guided electromagnetic waves that continues propagation along the transmission medium.

公开(公告)号：US10098011B2

公开(公告)日：2018-10-09

申请号：US15863545

申请日：2018-01-05

Applicant: AT&T Intellectual Property I, L.P.

Inventor： Robert Bennett ,  Donald J. Barnickel ,  Farhad Barzegar ,  Irwin Gerszberg ,  Paul Shala Henry ,  Thomas M. Willis

IPC: H04B3/36 ,  H04W16/26 ,  H02J50/10 ,  H04B3/52 ,  H01Q1/46 ,  H04B5/00 ,  H04W52/52 ,  H04B7/022 ,  H04B3/56 ,  H04B3/54 ,  H02J5/00

Abstract: Aspects of the subject disclosure may include, for example, a system including a frequency mixer that combines a signal and a carrier wave to form a combined signal, and a transmitter that generates a transmission based on the combined signal. The system can also include a coupling device that emits the transmission as an electromagnetic wave guided by an outer surface of a transmission medium. The electromagnetic wave can propagate longitudinally along the surface of the transmission medium and at least partially around the surface of the transmission medium. Other embodiments are disclosed.

公开(公告)号：US10205484B2

公开(公告)日：2019-02-12

申请号：US15665592

申请日：2017-08-01

Applicant: AT&T Intellectual Property I, L.P.

Inventor： Paul Shala Henry ,  Robert Bennett ,  Irwin Gerszberg ,  Farhad Barzegar ,  Donald J. Barnickel ,  Thomas M. Willis

IPC: H01P3/10 ,  H01P3/00 ,  H01P5/107 ,  H04B3/46 ,  H04L12/24 ,  H04B3/06 ,  H04B3/52 ,  H04B3/54 ,  H04W24/02 ,  G01R31/02 ,  G01R31/08 ,  H04L29/08

Abstract: Aspects of the subject disclosure may include, for example, a waveguide system for determining an event associated with a mode of transmitting or receiving electromagnetic waves on a surface of a transmission medium, identifying according to the event an updated mode for transmitting or receiving adjusted electromagnetic waves on the surface of a transmission medium, and transmitting or receiving the adjusted electromagnetic waves based on the updated mode. Other embodiments are disclosed.