Patents by Inventor Eswarappa Channabasappa

Eswarappa Channabasappa 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: 10051499
    Abstract: Systems, devices, methods, computer-readable media, techniques, and methodologies are disclosed for optimizing radio frequency configuration of a user device for better power management and faster time to first fix. The radio frequency configuration of user devices may be optimized based on user input analysis, machine learning, or crowd sourcing methodologies.
    Type: Grant
    Filed: December 4, 2014
    Date of Patent: August 14, 2018
    Assignee: Amazon Technologies, Inc.
    Inventors: Anuj Dron, Rohit Sammeta, Adrian Napoles, Ulf Jan Ove Mattsson, Chun Kit Lai, Daejoung Kim, Namhoon Kim, Eswarappa Channabasappa, Peruvemba Ranganathan Sai Ananthanarayanan
  • Patent number: 9917373
    Abstract: Antenna structures and methods of operating the same are described. One apparatus includes a metal housing that includes a first slot formed in a first portion of a wall of the metal housing and a second slot formed in a second portion of the wall. The apparatus includes a fin structure disposed within the metal housing. The fin structure includes fins that form a first sectorial cavity behind the first portion of the wall corresponding to the first slot and a second sectorial cavity behind the second portion of the wall corresponding to the second slot. Radio frequency (RF) circuitry is disposed on a circuit board disposed within the metal housing and is operable to radiate electromagnetic energy via the first slot and to radiate electromagnetic energy via the second slot.
    Type: Grant
    Filed: August 3, 2015
    Date of Patent: March 13, 2018
    Assignee: Amazon Technologies, Inc.
    Inventors: Eswarappa Channabasappa, Adrian Napoles
  • Patent number: 9912041
    Abstract: Antenna carriers with magneto-dielectric material and beam-shaping elements for enhanced performance and radiation safety of electronic devices are described. One electronic device includes a housing, an antenna element disposed on an antenna carrier, and a printed circuit board (PCB) disposed within the housing, the printed circuit board including radio frequency (RF) circuitry. The antenna carrier can be made up of a plastic cap, a ground plane, and a magneto-dielectric substrate with both dielectric and magnetic properties. The plastic cap is disposed at a first side of the housing and the magneto-dielectric substrate is disposed on a top surface of the plastic cap. The antenna element is disposed on a bottom surface of the magneto-dielectric substrate and electrically coupled to the RF circuitry. The antenna element radiates electromagnetic energy in a resonant mode and the magnetic property of the magneto-dielectric material increase efficiency, frequency bandwidth, or both.
    Type: Grant
    Filed: November 6, 2014
    Date of Patent: March 6, 2018
    Assignee: Amazon Technologies, Inc.
    Inventors: Eswarappa Channabasappa, Adrian Napoles, Chun Kit Lai, Daejoung Kim, Seng Chin Tai, Peruvemba Ranganathan Sai Ananthanarayanan, Anuj Dron, Namhoon Kim, Ulf Jan-Ove Mattsson, Rohit Sammeta
  • Patent number: 9774362
    Abstract: A user device obtains sensor data from sensors included in the user device. A set of current state information is determined based on the sensor data. A tuner code associated with the current state information is identified. Tuning values associated with the tuner code are varied during a training stage to determine an optimized tuner code. One or more antennae of the user device are tuned for communication in accordance with the optimized tuner code.
    Type: Grant
    Filed: November 7, 2014
    Date of Patent: September 26, 2017
    Assignee: Amazon Technologies, Inc.
    Inventors: Rohit Sammeta, Anuj Dron, Peruvemba Ranganathan Sai Ananthanarayanan, Chun Kit Lai, Eswarappa Channabasappa, Namhoon Kim, Dave Kim, Adrian Napoles, Ulf Jan-Ove Mattsson
  • Patent number: 9756544
    Abstract: A user device selects a communication module from a plurality of communication modules of the user device to communicate first data to a first device in a first configuration, selects a first antenna from a plurality of antennas of the user device to communicate the first data in the first configuration, and couples the communication module to the first antenna in the first configuration. The user device additionally selects the communication module to communicate second data to a second device in a second configuration, selects the first antenna and a second antenna from the plurality of antennas to communicate the second data in the second configuration, and couples the communication module to the first antenna and the second antenna in the second configuration.
    Type: Grant
    Filed: October 31, 2014
    Date of Patent: September 5, 2017
    Assignee: Amazon Technologies, Inc.
    Inventors: Peruvemba Ranganathan Sai Ananthanarayanan, Chun Kit Lai, Adrian Napoles, Namhoon Kim, Eswarappa Channabasappa, Ulf Jan Ove Mattsson, Anuj Dron, Daejoung Kim, Rohit Sammeta
  • Patent number: 9692125
    Abstract: Antenna structures and methods of operating the same are described. One antenna structure having a stacked patch antenna including a first patch structure disposed in a first plane and a second patch structure disposed in a second plane, a first parasitic patch antenna that is coplanar with the second patch structure, and a second parasitic patch antenna that is coplanar with the second patch structure. The first patch structure includes a first substrate with a ground plane and a first patch element. The second patch structure includes a second substrate with a second patch element. The first parasitic patch antenna is disposed adjacent a first side of the second patch structure in the second plane. The second parasitic patch antenna is disposed adjacent a second side of the second patch structure in the second plane.
    Type: Grant
    Filed: September 14, 2015
    Date of Patent: June 27, 2017
    Assignee: Amazon Technologies, Inc.
    Inventors: Eswarappa Channabasappa, Adrian Napoles
  • Patent number: 9415869
    Abstract: A plurality of UAVs may be operated in a fleet, each of the UAVs in the fleet being configured to work collectively to achieve one or more functions, such as to create a display or implement an antenna array. The fleet of UAVs may operate individually and/or may be coupled to one another to operate as a collective unit. In some embodiments, one or more UAVs in the fleet may operate individually, while two or more UAVs in the fleet may be connected to one another. In such embodiments, the individual UAVs and the connected UAVs may together comprise the fleet.
    Type: Grant
    Filed: March 26, 2015
    Date of Patent: August 16, 2016
    Assignee: Amazon Technologies, Inc.
    Inventors: Danny Chan, Eswarappa Channabasappa, Namhoon Kim, Tzung-I (Ian) Lee, Ulf Jan Ove Mattsson, Joseph Christopher Modro, Ming Zheng
  • Patent number: 9397727
    Abstract: An electronic device including a Near Field Communication (NFC) antenna and a slot antenna is described. The slot antenna may be formed by a slot opening in a housing of the electronic device. The slot opening may be shaped as a rectangular slot, a T-shaped slot, or T-shaped slot leading into a circular opening. The slot opening exposes the NFC antenna and allows the NFC antenna to radiate in a first frequency band while the slot antenna radiates at a second frequency band.
    Type: Grant
    Filed: December 11, 2014
    Date of Patent: July 19, 2016
    Assignee: Amazon Technologies, Inc.
    Inventors: Ulf Jan-Ove Mattsson, Chun Kit Lai, Peruvemba Ranganathan Sai Ananthanarayanan, Namhoon Kim, Eswarappa Channabasappa, Adrian Napoles, Anuj Dron, Rohit Sammeta, Seng Chin Tai
  • Publication number: 20160127972
    Abstract: A user device selects a communication module from a plurality of communication modules of the user device to communicate first data to a first device in a first configuration, selects a first antenna from a plurality of antennas of the user device to communicate the first data in the first configuration, and couples the communication module to the first antenna in the first configuration. The user device additionally selects the communication module to communicate second data to a second device in a second configuration, selects the first antenna and a second antenna from the plurality of antennas to communicate the second data in the second configuration, and couples the communication module to the first antenna and the second antenna in the second configuration.
    Type: Application
    Filed: October 31, 2014
    Publication date: May 5, 2016
    Inventors: Peruvemba Ranganathan Sai Ananthanarayanan, Chun Kit Lai, Adrian Napoles, Namhoon Kim, Eswarappa Channabasappa, Ulf Jan Ove Mattsson, Anuj Dron, Daejoung Kim, Rohit Sammeta
  • Patent number: 7847736
    Abstract: An antenna formed on a dielectric substrate having first and second opposing surfaces, a first meander antenna element disposed on the first surface of the substrate and a second meander antenna element disposed on the second surface of the substrate.
    Type: Grant
    Filed: August 24, 2006
    Date of Patent: December 7, 2010
    Assignee: Cobham Defense Electronic Systems
    Inventor: Eswarappa Channabasappa
  • Patent number: 7636063
    Abstract: The invention provides a compact patch antenna having a cavity underneath the driver patch, so that the electromagnetic volume of the antenna is expanded without increasing the overall area of the antenna. More specifically, the compact patch antenna comprises a base layer having a cavity, a ground plane located on the base layer, and having an opening over at least a portion of the cavity, a substrate located on the ground plane, and a driver patch located on the substrate. The invention further provides a method for constructing a compact patch antenna, comprising the steps of providing a base layer having a cavity, providing a ground plane located on the base layer, and having an opening over at least a portion of the cavity, providing a substrate located on the ground plane, and providing a driver patch located on the substrate.
    Type: Grant
    Filed: December 2, 2005
    Date of Patent: December 22, 2009
    Inventor: Eswarappa Channabasappa
  • Patent number: 7626549
    Abstract: A planar antenna comprising a signal path for receiving or transmitting a signal, a conductive layer having a slot formed therein positioned to electromagnetically couple with the signal path, a conductive plate parallel to and overlying the slot and spaced therefrom by a dielectric layer, the conductive plate being electrically in contact with the signal path, and one or more patches parallel to and above the conductive plate.
    Type: Grant
    Filed: March 28, 2007
    Date of Patent: December 1, 2009
    Inventor: Eswarappa Channabasappa
  • Patent number: 7486239
    Abstract: A dual polarization planar antenna comprising a first layer comprising a first patch, a second layer beneath the first layer comprising a first feed line for coupling a first signal to the first patch and a second feed line for coupling a second signal to the first patch such that the first patch radiates a field that has two different polarizations, and a third layer comprising first and second coupling discs electrically connected to the first feed line and third and fourth coupling discs electrically connected to the second feed line, wherein the first and second discs are electrically coupled to each other by a first half wavelength conductor and the third and fourth discs are electrically coupled the each other by a second half wavelength conductor, the first and second half wavelength conductors not being disposed in the second layer.
    Type: Grant
    Filed: September 27, 2007
    Date of Patent: February 3, 2009
    Inventor: Eswarappa Channabasappa
  • Publication number: 20080238793
    Abstract: A planar antenna comprising a signal path for receiving or transmitting a signal, a conductive layer having a slot formed therein positioned to electromagnetically couple with the signal path, a conductive plate parallel to and overlying the slot and spaced therefrom by a dielectric layer, the conductive plate being electrically in contact with the signal path, and one or more patches parallel to and above the conductive plate.
    Type: Application
    Filed: March 28, 2007
    Publication date: October 2, 2008
    Applicant: M/A-Com, Inc.
    Inventor: Eswarappa Channabasappa
  • Patent number: 7427949
    Abstract: A multi-element antenna with sufficiently small return loss and mutual coupling signals to allow the simultaneous transmission of powerful radar signals and the reception of faint target return signals. The microstrip patch antenna has radio frequency absorbing material place between neighboring antenna elements to reduce the mutual coupling leakage signals.
    Type: Grant
    Filed: December 5, 2005
    Date of Patent: September 23, 2008
    Assignee: M/A-COM, Inc.
    Inventors: Eswarappa Channabasappa, Robert Egri
  • Patent number: 7388457
    Abstract: In accordance with the principles of the present invention, a dielectric resonator is provided with a longitudinal through hole with a diameter that varies as a function of height of the resonator so as to increase the frequency spacing between the fundamental mode and the spurious modes.
    Type: Grant
    Filed: January 20, 2005
    Date of Patent: June 17, 2008
    Assignee: M/A-COM, Inc.
    Inventors: Kristi Dhimiter Pance, Eswarappa Channabasappa
  • Patent number: 7352263
    Abstract: The invention comprises a technique and associated mechanisms by which dielectric resonator circuits, such as filters, can be tuned in both frequency, bandwidth or both without the need for irises, tuning screws and/or tuning plates. In accordance with the invention, the positions of the dielectric resonators are adjustable relative to each other within the cavity in multiple ways, including vertically and horizontally. The dielectric resonators also may tilt relative to each other. Furthermore, an off-center longitudinal hole can be machined in one or more of the dielectric resonators so as to make the electromagnetic field of the resonator non-uniform so that the dielectric resonator can be rotated about its longitudinal axis to alter the coupling between dielectric resonators.
    Type: Grant
    Filed: April 28, 2006
    Date of Patent: April 1, 2008
    Assignee: M/A-Com, Inc.
    Inventors: Kristi Dhimiter Pance, Eswarappa Channabasappa
  • Publication number: 20080048929
    Abstract: An antenna formed on a dielectric substrate having first and second opposing surfaces, a first meander antenna element disposed on the first surface of the substrate and a second meander antenna element disposed on the second surface of the substrate.
    Type: Application
    Filed: August 24, 2006
    Publication date: February 28, 2008
    Applicant: M/A-Com, Inc.
    Inventor: Eswarappa Channabasappa
  • Patent number: 7310031
    Abstract: A dielectric resonator having variable cross-section, preferably varying monotonically, and, most preferably, the resonator being in the shape of a truncated cone. Such shapes displace the H11 mode from the TE mode in the longitudinal direction of the cone. Truncating the cone to eliminate the portion of the cone where the H11 mode exists, virtually eliminates the H11 mode. A circuit comprising a plurality of these resonators may be arranged in an enclosure with each resonator longitudinally inverted relative to adjacent resonator(s) to provide a compact design with enhanced coupling and adjustability. A spiral coupling loop provides high magnetic flux in a small physical volume for coupling energy into or out of the circuit. Alternately, the resonator can coupled to a microstrip by placing the resonator upside-down near the microstrip, whereby the TE mode is immediately above the microstrip, providing enhanced coupling there between.
    Type: Grant
    Filed: October 10, 2002
    Date of Patent: December 18, 2007
    Assignee: M/A-COM, Inc.
    Inventors: Kristi Dhimiter Pance, Eswarappa Channabasappa
  • Patent number: 7276996
    Abstract: In accordance with the principles of the present invention, a resonator puck is provided with one or more vertical and/or horizontal, radial slits that improve the quality factor, Q, of circuits constructed from the resonators. In some embodiments of the invention, the surfaces of the resonators that define the slit are left relatively rough and may even contact each other such that the slit is not of uniform thickness, but essentially comprises a plurality of pockets between the two portions of the resonator.
    Type: Grant
    Filed: June 26, 2006
    Date of Patent: October 2, 2007
    Assignee: M/A-Com, Inc.
    Inventors: Kristi Dhimiter Pance, Eswarappa Channabasappa