Patents by Inventor Sean Thomas Hansen

Sean Thomas Hansen 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).

  • Wideband filter for direct connection to differential power amplifier
    Patent number: 11581853
    Abstract: A filter device configured to directly connect to a differential power amplifier of a transmit chain circuit. The filter device may include a transformer and a filter configured as a half lattice equivalent topology and having a single-ended output. The filter may be a lattice filter configured as a full lattice topology or a lattice equivalent filter configured as a half lattice equivalent topology. The filter includes a first branch having a first impedance network of one or more first impedance elements and a second branch having a second impedance network of one or more second impedance elements. The single-ended output of the filter device may connect to an antenna switch that is in turn connected to an antenna.
    Type: Grant
    Filed: January 27, 2021
    Date of Patent: February 14, 2023
    Assignee: AVAGO TECHNOLOGIES INTERNATIONAL SALES PTE. LIMITED
    Inventors: Sean Thomas Hansen, Jeesu Kim
  • WIDEBAND FILTER FOR DIRECT CONNECTION TO DIFFERENTIAL POWER AMPLIFIER
    Publication number: 20220239257
    Abstract: A filter device configured to directly connect to a differential power amplifier of a transmit chain circuit. The filter device may include a transformer and a filter configured as a half lattice equivalent topology and having a single-ended output. The filter may be a lattice filter configured as a full lattice topology or a lattice equivalent filter configured as a half lattice equivalent topology. The filter includes a first branch having a first impedance network of one or more first impedance elements and a second branch having a second impedance network of one or more second impedance elements. The single-ended output of the filter device may connect to an antenna switch that is in turn connected to an antenna.
    Type: Application
    Filed: January 27, 2021
    Publication date: July 28, 2022
    Inventors: Sean Thomas HANSEN, Jeesu KIM
  • Push-pull capacitive micro-machined ultrasound transducer array
    Patent number: 7903830
    Abstract: A push-pull capacitive micromechanical ultrasound transducer (CMUT) is provided for ultrasound imaging or therapy. Gaps and electrodes on both sides of an electrostatic membrane provide push-pull operation. The membrane is oriented to flex in a direction of acoustic propagation. A surface connected to the membrane may better expose the movement to the acoustic medium even in the push-pull arrangement.
    Type: Grant
    Filed: August 10, 2006
    Date of Patent: March 8, 2011
    Assignee: Siemens Medical Solutions USA, Inc.
    Inventors: Sean Thomas Hansen, Paul Anthony Wagner, Stephen Roy Barnes
  • Push-pull capacitive micro-machined ultrasound transducer array
    Publication number: 20080049954
    Abstract: A push-pull capacitive micromechanical ultrasound transducer (CMUT) is provided for ultrasound imaging or therapy. Gaps and electrodes on both sides of an electrostatic membrane provide push-pull operation. The membrane is oriented to flex in a direction of acoustic propagation. A surface connected to the membrane may better expose the movement to the acoustic medium even in the push-pull arrangement.
    Type: Application
    Filed: August 10, 2006
    Publication date: February 28, 2008
    Inventors: Sean Thomas Hansen, Paul Anthony Wagner, Stephen Roy Barnes