At&t Intellectual Property I, L.p.

Lucent Technologies Inc.

Ncr Corporation

Polaris Wireless, Inc.

At&t Corp.

At&t Bell Laboratories

American Telephone & Telegraph Co., At&t Bell Laboratories

At&t Ipm Corp.

American Telephone and Telegraph, Co.

Giovanni Vannucci

Paul Shala Henry

Thomas M Willis, Iii

Farhad Barzegar

Irwin Gerszberg

Robert Bennett

Donald J Barnickel

Peter Wasily Wolniansky

Shikik Johnson

Martin Birk

R Anthony Shober

Bruce Edward Stuckman

Gregory Alan Wright

Harold Lee Rappaport

Stephen A Wilkus

James G Evans

Ed Guntin

Robert Ellis Richton

Jason Paul DeMont

John Austin MacLellan

Jeffrey Joseph Farah

Ren Da

Howard C Huang

Byron H Chen

Robert S Roman

David Michael Britz

Byoung-Jo J Kim

Theodore Sizer

Stephan Ten Brink

Gerard Joseph Foschini

Chih-Lin I

Peter Frank Driessen

Aldo Adriazola

Yoshitaka Utsumi

Laurence Eugene Mailaender

Constantinos B Papadias

Robert W Wilson

Lawrence Joel Greenstein

Ta-Shing Chu

Ibrahim Tekin

Vinko Erceg

Christopher Burke Barroso

Chi-Hwey Chang

Zoe Goodman-Frost

Thomas C Cannon, Jr

Martin V Clark

Anthony Joseph Rustako, Jr

Manolis Tsangaris

John Austin Maclellan

Robert Stephen Roman

Anthony Joseph Rustako

Aspects of the subject disclosure may include, systems, apparatuses, and methods for determining that a load associated with a transmission medium exceeds a first threshold, wherein the transmission medium guides a first electromagnetic wave that propagates along the transmission medium from a first waveguide device to a second waveguide device without requiring an electrical return path, and based on the determining that the load exceeds the first threshold, enabling an injector to supply power to the transmission medium utilizing a very low frequency (VLF) generator. Other embodiments are disclosed.

Methods and apparatuses for facilitating signaling and power in a communication system

Aspects of the subject disclosure may include, a device having an envelope detector, an oscillator, a switch driver, a processing system including a processor; and a memory that stores executable instructions that, when executed by the processing system, facilitate performance of operations, the operations of comparing a first signal received from the envelope detector and a second signal received from the oscillator within a high probability interval, thereby generating a valid detection; and activating the switch driver responsive to the valid detection. Other embodiments are disclosed.

Time domain duplexing repeater using envelope detection

Aspects of the subject disclosure may include, a system that facilitates receiving a first electromagnetic wave propagating along a transmission medium, detecting, according to the first electromagnetic wave, an obstruction on a first portion of an outer surface of the transmission medium, responsive to the detecting the obstruction, configuring a material to have similar properties to the obstruction, the material being positioned along a second portion of the outer surface of the transmission medium, and generating a second electromagnetic wave that propagates along the transmission medium without relying on an electrical return path to facilitate propagation of the second electromagnetic wave along the transmission medium, the material facilitating propagation of the second electromagnetic wave from the second portion of the outer surface of the transmission medium to the first portion of the transmission medium affected by the obstruction. Other embodiments are disclosed.

Method and apparatus adapted to a characteristic of an outer surface of a transmission medium for launching or receiving electromagnetic waves

Aspects of the subject disclosure may include, generating, by a power supply of an insulator, first output power that is at least partially consumed by an electronic device of the insulator, and generating, by the power supply, second output power that is consumed by a first waveguide device, wherein the first waveguide device is configured to obtain a first electromagnetic wave from a transmission medium, and wherein the first electromagnetic wave is guided by and propagates along the transmission medium without requiring an electrical return path, wherein the insulator insulates medium-voltage infrastructure from low-voltage infrastructure. Other embodiments are disclosed.

Apparatuses and methods for enhancing a reliability of power available to communicaton devices via an insulator

Aspects of the subject disclosure may include, a first waveguide system that receives first electromagnetic waves that propagate along a transmission medium where the transmission medium comprises an external surface where the first electromagnetic waves propagate along the transmission medium without requiring an electrical return path, and where the first electromagnetic waves convey data. The first waveguide system can generate, according to the first electromagnetic waves, first signals, where the first signals convey the data. The first waveguide system can provide the first signals to a switching device that facilitates generating and providing, according to the first signals and routing information conveyed by the first signals, second signals to a second waveguide system selected from among a group of waveguide systems communicatively coupled to the switching device, where the second signals convey at least a first portion of the data. Other embodiments are disclosed.

Method and apparatus for switching of data channels provided in electromagnetic waves

Aspects of the subject disclosure may include identifying at least one parameter associated with a transmission medium of a communication system, wherein the transmission medium is defined by a first physical endpoint and a second physical endpoint, identifying, based on the identifying of the at least one parameter, a first location for deploying a first waveguide system about the transmission medium, wherein the first location is different from each of the first physical endpoint and the second physical endpoint, wherein the first waveguide system is configured to couple a first electromagnetic wave onto the transmission medium, and wherein the first electromagnetic wave is guided by and propagates along the transmission medium without requiring an electrical return path, and generating a first directive for deploying the first waveguide system about the transmission medium at the first location. Other embodiments are disclosed.

Methods and apparatuses for facilitating guided wave communications with an enhanced flexibility in parameters

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.

Method and apparatus for transitioning between electromagnetic wave modes

Aspects of the subject disclosure may include systems, apparatuses, and methods for monitoring a value of a parameter associated with a first waveguide device that is configured to couple a first electromagnetic wave onto a transmission medium such that the first electromagnetic wave is guided by and propagates along the transmission medium without requiring an electrical return path, and periodically transmitting, based on the monitoring, a status of a health of the first waveguide device, wherein the periodic transmission of the status of the health occurs at a rate that is less than once every ten seconds. Other embodiments are disclosed.

Apparatuses and methods for facilitating a conveyance of status in communication systems and networks

Aspects of the subject disclosure may include, a system that facilitates transmitting a plurality of ultra-wideband electromagnetic waves that propagates along a surface of a first transmission medium without requiring an electrical return path, wherein the first plurality of ultra-wideband electromagnetic waves conveys a plurality of communication signals, detecting an attenuation in the plurality of ultra-wideband electromagnetic waves that affects a propagation of the plurality of ultra-wideband electromagnetic waves along the first surface of the first transmission medium, and responsive to the detecting, redirecting at least a portion of the plurality of ultra-wideband electromagnetic waves to an interface of a second transmission medium. Other embodiments are disclosed.

Apparatus and methods for mitigating a fault that adversely affects ultra-wideband transmissions

In accordance with one or more embodiments, a surface wave launcher is configured to transmit and receive guided electromagnetic waves via the aperture that propagate along a transmission medium without requiring an electrical return path. The surface wave launcher includes a coaxial port having an inner conductor and an outer conductor. A conductive tray is coupled to the inner conductor and is configured to surround, at least in part, a portion of the transmission medium. A dielectric layer surrounds, at least in part, a portion of the conductive tray. A conductive cone, is coupled to the outer conductor at a feed-point of the conductive cone, and coaxially surrounds the transmission medium, wherein the conductive cone is adjacent to the dielectric layer at the feed-point and forms an aperture.

Conical surface wave launcher and methods for use therewith

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.

Impedance matched launcher with cylindrical coupling device and methods for use therewith

Aspects of the subject disclosure may include a planar antenna configured to transmit first signals as a first guided electromagnetic wave that is bound to a surface of a transmission medium, wherein the first guided electromagnetic wave propagates along the surface of the transmission medium without requiring an electrical return path, wherein the planar antenna includes an array of patch antennas that generates first near field signals in response to the first signals and a plurality of directors configured to guide a portion of the first near field signals from the array of patch antennas to the surface of the transmission medium, and wherein the portion of the first near field signals combines to induce the first guided electromagnetic wave that is bound to the surface of the transmission medium.

Antenna system with planar antenna and directors and methods for use therewith

In accordance with one or more embodiments, a guided wave launcher includes an array of antennas configured to generate near field signals. A controller is configured to: select, in response to a first control signal, at least one of a plurality of guided wave modes; and adjust beam steering parameters of the array of antennas according to the selected one(s) of the plurality of guided wave modes. The near field signals combine to induce a guided electromagnetic wave having the selected one(s) of the plurality of guided wave modes, wherein the first guided electromagnetic wave is guided by the transmission medium and propagates along the transmission medium without requiring an electrical return path.

Configurable guided wave launcher and methods for use therewith

In accordance with one or more embodiments, a transmission device operates by: generating a transmit signal conveying transmit data in accordance with an HARQ protocol; converting the transmit signal to transmitted guided electromagnetic waves that propagate along a surface of a transmission medium; converting to a receive signal received guided electromagnetic waves that propagate along the surface of the transmission medium; generating, based on the receive signal, corona discharge data that indicates a corona discharge in proximity to the transmission medium during a first time period; identifying, responsive to the corona discharge data, a first packet of the transmit signal that was converted to transmitted guided electromagnetic waves during the first time period; and regenerating the transmit signal to include the first packet for retransmission via the transmitted guided electromagnetic waves, without waiting for a repeat request to be received from the remote device indicating the first packet.

Transmission device with hybrid ARQ and methods for use therewith

In accordance with one or more embodiments, a waveguide system includes a transmission device configured to send and receive guided electromagnetic waves that propagate along a surface of a power line without requiring an electrical return path. The waveguide system further includes a magnetic core that surrounds the power line, a first winding around the magnetic core that generates a supply current in response a transmission current flowing through the power line and a power supply that converts the supply current to a supply voltage that powers the transmission device. The power supply automatically stabilizes power consumption by the transmission device in response to variations in the supply current caused by variations in the transmission current flowing through the power line.

Waveguide system with power stabilization and methods for use therewith

Growing community of inventors

Middletown, NJ, United States of America

Giovanni Vannucci