Patents by Inventor Gerardus J. E. L. Van Der Heijden

Gerardus J. E. L. Van Der Heijden 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).

  • Method and apparatus for calibrating a transport scanner and a test original for use with such method
    Patent number: 8238000
    Abstract: A method for geometrically calibrating a transport or feed through a scanner apparatus, arranged for scanning a two-dimensional original for subsequent usage in an appropriate information handling system, wherein a test original is presented which has been provided with an image for the purpose of deriving a scanned image therefrom. The method uses the test original provided with a test image featuring a leading image edge and a trailing image edge at a predetermined and known parallel displacement with respect to each other, and automatically detects therefrom a calculated first correction value for the zoom factor in the transport direction or transport speed, a calculated second correction value for the leading edge position, and a calculated third correction value for the trailing edge position. Thereupon, the first, second and third correction values are updated in the scanner apparatus in accordance with the measured values therefor.
    Type: Grant
    Filed: November 21, 2003
    Date of Patent: August 7, 2012
    Assignee: Oce-Technologies B.V.
    Inventor: Gerardus J. E. L. Van Der Heijden
  • Method and apparatus for calibrating a transport scanner and a test original for use with such method
    Publication number: 20040150861
    Abstract: A method for geometrically calibrating a transport or feed through a scanner apparatus, arranged for scanning a two-dimensional original for subsequent usage in an appropriate information handling system, wherein a test original is presented which has been provided with an image for the purpose of deriving a scanned image therefrom. The method uses the test original provided with a test image featuring a leading image edge and a trailing image edge at a predetermined and known parallel displacement with respect to each other, and automatically detects therefrom a calculated first correction value for the zoom factor in the transport direction or transport speed, a calculated second correction value for the leading edge position, and a calculated third correction value for the trailing edge position. Thereupon, the first, second and third correction values are updated in the scanner apparatus in accordance with the measured values therefor.
    Type: Application
    Filed: November 21, 2003
    Publication date: August 5, 2004
    Inventor: Gerardus J.E.L. Van Der Heijden