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).
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Patent number: 11575214Abstract: 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: GrantFiled: January 31, 2019Date of Patent: February 7, 2023Assignee: NORTHROP GRUMMAN SYSTEMS CORPORATIONInventors: Thomas H. Hand, Michael E. Cooley, David Sall, Gary L. Kempic
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Patent number: 10897075Abstract: 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: GrantFiled: November 30, 2018Date of Patent: January 19, 2021Assignee: NORTHROP GRUMMAN SYSTEMS CORPORATIONInventors: Michael E. Cooley, Bret J. Yon, David Sall, Robert J. March, Scott A. Wilson, John Hodge, Alyssa Harris, Nicholas Fasanella
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Publication number: 20200176858Abstract: 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: ApplicationFiled: November 30, 2018Publication date: June 4, 2020Inventors: Michael E. Cooley, Bret J. Yon, David Sall, Robert J. March, Scott A. Wilson, John Hodge, Alyssa Harris, Nicholas Fasanella
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Publication number: 20190165485Abstract: 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: ApplicationFiled: January 31, 2019Publication date: May 30, 2019Applicant: NORTHROP GRUMMAN SYSTEMS CORPORATIONInventors: THOMAS H. HAND, MICHAEL E. COOLEY, DAVID SALL, GARY L. KEMPIC
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Patent number: 10263342Abstract: 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: GrantFiled: October 15, 2013Date of Patent: April 16, 2019Assignee: NORTHROP GRUMMAN SYSTEMS CORPORATIONInventors: Thomas H. Hand, Michael E. Cooley, David Sall, Gary L. Kempic
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Publication number: 20150102973Abstract: 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: ApplicationFiled: October 15, 2013Publication date: April 16, 2015Applicant: NORTHROP GRUMMAN SYSTEMS CORPORATIONInventors: Thomas H. Hand, Michael E. Cooley, David Sall, Gary L. Kempic
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Publication number: 20120214577Abstract: 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: ApplicationFiled: September 12, 2011Publication date: August 23, 2012Applicant: IGTInventors: 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
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Publication number: 20070054740Abstract: 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: ApplicationFiled: April 28, 2006Publication date: March 8, 2007Applicant: Bally Technologies, Inc.Inventors: David Salls, James Morrow