Patents by Inventor David Sall

David Sall 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: 11575214
    Abstract: A reflectarray antenna system includes an antenna feed configured to at least one of transmit and receive a wireless signal occupying a frequency band. The system also includes a reflector having a reflectarray. The reflectarray includes a plurality of reflectarray elements, where each of the reflectarray elements includes a dipole element. The dipole element of at least a portion of the plurality of reflectarray elements comprises a crossed-dipole portion and a looped-dipole portion. The plurality of reflectarray elements can be configured to selectively phase-delay the wireless signal to provide the wireless signal as a coherent beam.
    Type: Grant
    Filed: January 31, 2019
    Date of Patent: February 7, 2023
    Assignee: NORTHROP GRUMMAN SYSTEMS CORPORATION
    Inventors: Thomas H. Hand, Michael E. Cooley, David Sall, Gary L. Kempic
  • Patent number: 10897075
    Abstract: A planar reflectarray system provides for bandwidth broadening by employing a tunable (amplitude and phase) feed array. The tunable feed array is adjustable in amplitude and phase to compensate for aberrations by enabling feed re-focusing and field matching. The techniques modestly increase the size of the feed array and use active tuning to effectively correct for de-focusing when operating reflectarrays at frequencies away from the tuned center frequency.
    Type: Grant
    Filed: November 30, 2018
    Date of Patent: January 19, 2021
    Assignee: NORTHROP GRUMMAN SYSTEMS CORPORATION
    Inventors: Michael E. Cooley, Bret J. Yon, David Sall, Robert J. March, Scott A. Wilson, John Hodge, Alyssa Harris, Nicholas Fasanella
  • Publication number: 20200176858
    Abstract: A planar reflectarray system provides for bandwidth broadening by employing a tunable (amplitude and phase) feed array. The tunable feed array is adjustable in amplitude and phase to compensate for aberrations by enabling feed re-focusing and field matching. The techniques modestly increase the size of the feed array and use active tuning to effectively correct for de-focusing when operating reflectarrays at frequencies away from the tuned center frequency.
    Type: Application
    Filed: November 30, 2018
    Publication date: June 4, 2020
    Inventors: Michael E. Cooley, Bret J. Yon, David Sall, Robert J. March, Scott A. Wilson, John Hodge, Alyssa Harris, Nicholas Fasanella
  • Publication number: 20190165485
    Abstract: A reflectarray antenna system includes an antenna feed configured to at least one of transmit and receive a wireless signal occupying a frequency band. The system also includes a reflector having a reflectarray. The reflectarray includes a plurality of reflectarray elements, where each of the reflectarray elements includes a dipole element. The dipole element of at least a portion of the plurality of reflectarray elements comprises a crossed-dipole portion and a looped-dipole portion. The plurality of reflectarray elements can be configured to selectively phase-delay the wireless signal to provide the wireless signal as a coherent beam.
    Type: Application
    Filed: January 31, 2019
    Publication date: May 30, 2019
    Applicant: NORTHROP GRUMMAN SYSTEMS CORPORATION
    Inventors: THOMAS H. HAND, MICHAEL E. COOLEY, DAVID SALL, GARY L. KEMPIC
  • Patent number: 10263342
    Abstract: One embodiment describes a reflectarray antenna system. The system includes an antenna feed configured to at least one of transmit and receive a wireless signal occupying a frequency band. The system also includes a reflector comprising a reflectarray. The reflectarray includes a plurality of reflectarray elements, where each of the reflectarray elements includes a dipole element. The dipole element of at least a portion of the plurality of reflectarray elements comprises a crossed-dipole portion and a looped-dipole portion. The plurality of reflectarray elements can be configured to selectively phase-delay the wireless signal to provide the wireless signal as a coherent beam.
    Type: Grant
    Filed: October 15, 2013
    Date of Patent: April 16, 2019
    Assignee: NORTHROP GRUMMAN SYSTEMS CORPORATION
    Inventors: Thomas H. Hand, Michael E. Cooley, David Sall, Gary L. Kempic
  • Publication number: 20150102973
    Abstract: One embodiment describes a reflectarray antenna system. The system includes an antenna feed configured to at least one of transmit and receive a wireless signal occupying a frequency band. The system also includes a reflector comprising a reflectarray. The reflectarray includes a plurality of reflectarray elements, where each of the reflectarray elements includes a dipole element. The dipole element of at least a portion of the plurality of reflectarray elements comprises a crossed-dipole portion and a looped-dipole portion. The plurality of reflectarray elements can be configured to selectively phase-delay the wireless signal to provide the wireless signal as a coherent beam.
    Type: Application
    Filed: October 15, 2013
    Publication date: April 16, 2015
    Applicant: NORTHROP GRUMMAN SYSTEMS CORPORATION
    Inventors: Thomas H. Hand, Michael E. Cooley, David Sall, Gary L. Kempic
  • Publication number: 20120214577
    Abstract: Disclosed herein are techniques for facilitating communication with a smart card in communication with a gaming machine. In some implementations, a smart card interaction device may be activated. A smart card interaction device coupled with an electronic gaming machine may be identified within an operating system running at the electronic gaming machine. The smart card interaction device may be capable of facilitating communication between the electronic gaming machine and a smart card in communication with the smart card interaction device. A communication protocol interface may be initiated within the operating system. The communication protocol interface may provide a mechanism for transmitting messages between the electronic gaming machine and devices in communication with the electronic gaming machine. A first message may be transmitted via the communication protocol interface between the smart card interaction device and a first host server via a network.
    Type: Application
    Filed: September 12, 2011
    Publication date: August 23, 2012
    Applicant: IGT
    Inventors: Erik B. Petersen, Jeffery S. Shepherd, Regan J. Snyder, Larry R. Hollibaugh, Jelani Brandon, Kevin Higgins, David Salls, Warner R. Cockerille, IV, Marc Espin, Tanya McClinton, Robyn Hylton, Scott MacMillan
  • Publication number: 20070054740
    Abstract: The invention provides a method and apparatus for linking a plurality of independent networks to a single central control system. In one embodiment, a casino accounting and reporting processing system provides a common back end to a plurality of networks. In one embodiment, the central server is coupled to at least one network using the same protocol so that no translation or interface is necessary. One or more other networks are coupled to the central server via an interface for translating communications and commands from the independent network to the host network protocol. In one embodiment, the interface is implemented using a standard interface referred to as “S2S”. An advantage of the invention is that it can be used to provide a common user interface, common accounting and security, and common player tracking management.
    Type: Application
    Filed: April 28, 2006
    Publication date: March 8, 2007
    Applicant: Bally Technologies, Inc.
    Inventors: David Salls, James Morrow