Patents by Inventor David Trawick

David Trawick 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: 11952139
    Abstract: A voltage controlled aircraft electric propulsion system includes an electric propulsion system. The voltage controlled aircraft electric propulsion system may include electric propulsors providing thrust for the aircraft. In hybrid systems, a gas turbine engine may also be included. The electric propulsion system may include at least one electric generator power source, at least one propulsor motor load, and at least one stored energy power source, such as a battery. The propulsor motor load may be supplied power from a power supply bus. The voltage of the power supply bus may be adjusted according to an altitude of the aircraft while maintaining a substantially constant current flow to the propulsor motor load. Due to the adjustment to lower voltages at increased altitude, insulations levels may be lower.
    Type: Grant
    Filed: May 14, 2021
    Date of Patent: April 9, 2024
    Assignee: Rolls-Royce Corporation
    Inventors: Peter Schenk, David Loder, David Trawick
  • Publication number: 20220363402
    Abstract: A voltage controlled aircraft electric propulsion system includes an electric propulsion system. The voltage controlled aircraft electric propulsion system may include electric propulsors providing thrust for the aircraft. In hybrid systems, a gas turbine engine may also be included. The electric propulsion system may include at least one electric generator power source, at least one propulsor motor load, and at least one stored energy power source, such as a battery. The propulsor motor load may be supplied power from a power supply bus. The voltage of the power supply bus may be adjusted according to an altitude of the aircraft while maintaining a substantially constant current flow to the propulsor motor load. Due to the adjustment to lower voltages at increased altitude, insulations levels may be lower.
    Type: Application
    Filed: May 14, 2021
    Publication date: November 17, 2022
    Applicant: Rolls-Royce Corporation
    Inventors: Peter Schenk, David Loder, David Trawick
  • Publication number: 20070247189
    Abstract: A field-programmable object array integrated circuit employs a course gain architecture comprising a core array of highly optimized silicon objects that are individually programmed and synchronously connected via high performance parallel communications structures permitting the user to configure the device to implement a variety of very high performance algorithms. The high level functions available in the objects combined with the unique interconnect structures enables performance superior to existing field programmable solutions while maintaining and enhancing the flexibility. A consistent peripheral “donut” structure around the core of each object makes them interchangeable to build up complex circuits without redesign of standard objects.
    Type: Application
    Filed: December 5, 2006
    Publication date: October 25, 2007
    Applicant: MathStar
    Inventors: Doug Phil, Ronald Bell, Kevin Atkinson, David Trawick, Fuk Ng, Liem Nguyen
  • Publication number: 20060080632
    Abstract: An integrated circuit layout pattern is formed from a plurality of objects placed within the layout pattern. Each object has a homogenous communications interface, which is a rectilinear donut structure formed of communications elements surrounding a central object logic area. The communications elements are adapted to route data between the central object logic area and other rectilinear donut structures in the layout pattern.
    Type: Application
    Filed: January 25, 2005
    Publication date: April 13, 2006
    Applicant: MathStar, Inc.
    Inventors: Fuk Ho Ng, Liem Nguyen, David Trawick