Patents by Inventor Ian Gresham

Ian Gresham 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).

  • METHOD AND APPARATUS FOR TERMINATING A TIME DIVISION DUPLEX PHASED ARRAY ANTENNA
    Publication number: 20260229775
    Abstract: A beamforming integrated circuit includes switchable transceivers, each including a switchable transmit circuit for a first polarization of an antenna, including a transmit path configured to be selectively enabled, and a switchable transmit impedance matching network connected to the transmit path. Each of the switchable transceivers also includes a switchable receive circuit for a second polarization of the antenna, including a receive path configured to be selectively enabled, and a switchable receive impedance matching network connected to the receive path. In the transmit state, the transmit path is enabled, the receive path is disabled, the switchable transmit impedance matching network is disabled, and the switchable receive impedance matching network is enabled. In in the receive state the transmit path is disabled, the receive path is enabled, the switchable transmit impedance matching network is enabled, and the switchable receive impedance matching network is disabled.
    Type: Application
    Filed: December 30, 2025
    Publication date: August 6, 2026
    Inventors: Wade C. Allen, Curtis Crockett, Tyler Eaves, Tissana T. Kijsanayotin, Ian Gresham, Ryan Jennings
  • Voltage controlled oscillator with cascaded emitter follower buffer stages
    Patent number: 7791422
    Abstract: A voltage controlled oscillator (VCO) is provided that includes an output buffer having a first buffer stage including a first transistor and a second buffer stage including a second transistor. The first and second transistors are connected in a cascaded emitter follower buffer arrangement.
    Type: Grant
    Filed: October 17, 2007
    Date of Patent: September 7, 2010
    Assignee: Autoliv ASP, Inc.
    Inventors: Yumin Lu, Ian Gresham
  • TUNABLE CAPACITIVELY LOADED TRANSFORMER PROVIDING SWITCHED INDUCTANCE FOR RF/MICROWAVE INTEGRATED CIRCUITS
    Publication number: 20100123536
    Abstract: A tunable transformer providing switched inductance includes a primary winding and a secondary winding. A switch is connected to the secondary winding of the transformer. At least one capacitor is also connected to the secondary winding of the transformer with the switch.
    Type: Application
    Filed: November 19, 2008
    Publication date: May 20, 2010
    Inventors: Yumin Lu, Ian Gresham
  • VOLTAGE CONTROLLED OSCILLATOR WITH CASCADED EMITTER FOLLOWER BUFFER STAGES
    Publication number: 20090102568
    Abstract: A voltage controlled oscillator (VCO) is provided that includes an output buffer having a first buffer stage including a first transistor and a second buffer stage including a second transistor. The first and second transistors are connected in a cascaded emitter follower buffer arrangement.
    Type: Application
    Filed: October 17, 2007
    Publication date: April 23, 2009
    Inventors: Yumin Lu, Ian Gresham