Patents by Inventor Yvonne Polin

Yvonne Polin 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).

  • Process and apparatus for automatically determining the modulation transfer function of focal plane array cameras
    Patent number: 6876443
    Abstract: In a process for automatically determining the modulation transfer function (MTF) of a focal plane array (FPA) cameras, a test grid is used to generate a beat whose amplitude corresponds to that of the grid image to be measured, without the sampling MTF. (The image of the test grid has a spatial frequency in the detector plane that is detuned with respect to the Nyquist frequency of the detector array. The test grid covers a range of at least half a beat period, and then, regardless of the actual phase position, the modulation amplitude is determined therefrom. Comparative MTF measurements are thereby permitted without the influence of the sampling effect of an FPA, and particularly the MTF measurement in real time suitable for the application to moving images.
    Type: Grant
    Filed: October 31, 2002
    Date of Patent: April 5, 2005
    Assignee: LFK-Lenkflugkoerpersysteme GmbH
    Inventors: Jochen Barth, Michael Assel, Yvonne Polin
  • Process and apparatus for automatically determining the modulation transfer function of focal plane array cameras
    Publication number: 20030086079
    Abstract: In a process for automatically determining the modulation transfer function (MTF) of a focal plane array (FPA) cameras, a test grid is used to generate a beat whose amplitude corresponds to that of the grid image to be measured, without the sampling MTF. (The image of the test grid has a spatial frequency in the detector plane that is detuned with respect to the Nyquist frequency of the detector array. The test grid covers a range of at least half a beat period, and then, regardless of the actual phase position, the modulation amplitude is determined therefrom. Comparative MTF measurements are thereby permitted without the influence of the sampling effect of an FPA, and particularly the MTF measurement in real time suitable for the application to moving images.
    Type: Application
    Filed: October 31, 2002
    Publication date: May 8, 2003
    Applicant: LFK-Lenkflugkoerpersysteme GmbH
    Inventors: Jochen Barth, Michael Assel, Yvonne Polin