Patents by Inventor Stevan Zivanovic

Stevan Zivanovic 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).

  • Open-loop start-up method for a resonating device
    Patent number: 7190237
    Abstract: A system employing a resonating device and a controller implements a method involving an establishment by the controller of open-loop oscillations of the resonating device at a resonating frequency of the resonating device, and an establishment by the controller of closed-loop oscillations of the resonating device based on the open-loop oscillations of the resonating device at the resonating frequency. To this end, the controller controls an application and a tuning of a first open-loop drive signal to the resonating device based on a design-drive standard resonating frequency range whereby the controller can measure and designate a frequency of a resonating output signal from the resonating device as a calibration resonant frequency, and controls an application and a tuning of a second open-loop drive signal to the resonating device based on the calibration resonant frequency whereby the controller can subsequently apply a closed-loop drive signal to the resonating device.
    Type: Grant
    Filed: May 27, 2004
    Date of Patent: March 13, 2007
    Assignee: Continental Automotive, Inc.
    Inventors: Stevan Zivanovic, Stephen J. Rober
  • Open-loop start-up method for a resonating device
    Publication number: 20050264366
    Abstract: A system employing a resonating device and a controller implements a method involving an establishment by the controller of open-loop oscillations of the resonating device at a resonating frequency of the resonating device, and an establishment by the controller of closed-loop oscillations of the resonating device based on the open-loop oscillations of the resonating device at the resonating frequency. To this end, the controller controls an application and a tuning of a first open-loop drive signal to the resonating device based on a design-drive standard resonating frequency range whereby the controller can measure and designate a frequency of a resonating output signal from the resonating device as a calibration resonant frequency, and controls an application and a tuning of a second open-loop drive signal to the resonating device based on the calibration resonant frequency whereby the controller can subsequently apply a closed-loop drive signal to the resonating device.
    Type: Application
    Filed: May 27, 2004
    Publication date: December 1, 2005
    Inventors: Stevan Zivanovic, Stephen Rober