Patents by Inventor Charles Christiansen

Charles Christiansen 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: 11915134
    Abstract: Methods, systems, and apparatus, including computer programs encoded on computer storage media, for processing cell images using neural networks. One of the methods includes obtaining data comprising an input image of one or more biological cells illuminated with an optical microscopy technique; processing the data using a stained cell neural network; and processing the one or more stained cell images using a cell characteristic neural network, wherein the cell characteristic neural network has been configured through training to receive the one or more stained cell images and to process the one or more stained cell images to generate a cell characteristic output that characterizes features of the biological cells that are stained in the one or more stained cell images.
    Type: Grant
    Filed: September 12, 2022
    Date of Patent: February 27, 2024
    Assignee: Google LLC
    Inventors: Philip Charles Nelson, Eric Martin Christiansen, Marc Berndl, Michael Frumkin
  • Patent number: 9151079
    Abstract: A system for operating an electric door release having an actuator powered by an energy harvester. The actuator may be a piezoelectric actuator and the harvester may be a piezo harvester. The system may further include a power module, a rechargeable battery and a voltage boost circuit disposed between the energy harvester and the actuator. When a piezoelectric actuator is used, a recycle actuator discharge circuit may be disposed between the piezoelectric actuator and the power module battery for recapturing a portion of the energy delivered to the piezoelectric actuator. The piezoelectric harvester may include an energy input portion whereby the piezo electric harvester is excited by the energy input portion. The energy input portion may include a circular or linear driving gear for exciting the piezoelectric harvester or a stepper motor generator, driven by movement of a door. The harvester may also be a stepper motor/generator.
    Type: Grant
    Filed: April 15, 2011
    Date of Patent: October 6, 2015
    Assignee: Hanchett Entry Systems, Inc.
    Inventors: Michael A. Webb, Charles Christiansen, Leland J. Hanchett, Jr., Scott Sullivan
  • Publication number: 20110252845
    Abstract: A system for operating an electric door release having an actuator powered by an energy harvester. The actuator may be a piezoelectric actuator and the harvester may be a piezo harvester. The system may further include a power module, a rechargeable battery and a voltage boost circuit disposed between the energy harvester and the actuator. When a piezoelectric actuator is used, a recycle actuator discharge circuit may be disposed between the piezoelectric actuator and the power module battery for recapturing a portion of the energy delivered to the piezoelectric actuator. The piezoelectric harvester may include an energy input portion whereby the piezo electric harvester is excited by the energy input portion. The energy input portion may include a circular or linear driving gear for exciting the piezoelectric harvester or a stepper motor generator, driven by movement of a door. The harvester may also be a stepper motor/generator.
    Type: Application
    Filed: April 15, 2011
    Publication date: October 20, 2011
    Applicant: Hanchett Entry Systems, Inc.
    Inventors: Michael A. Webb, Charles Christiansen, Leland J. Hanchett, JR., Scott Sullivan