Patents by Inventor Frank Plück

Frank Plück 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: 6366367
    Abstract: The invention relates to a method and device used for the digital detection of transparent and opaque documents, comprising a CCD pick-up element, a document holder, an illuminating device and elements for covering the edges (masking unit) of the documents. The method comprises the following steps: a) placing the document on the document holder; b) determining the size of the document; c) automatically adjusting a zoom objective, assigned to the scanner, in relation to the document; d) automatically adjusting the masking to the document size; e) beginning the exposure process; f) automatically adjusting the illumination by determining the dynamic range of the image intensity; g) exposing the CCD chip in the camera (one shot); h) memorizing the digitized data in a PC memory; i) further processing the memorized data in the PC or in an external data processing installation.
    Type: Grant
    Filed: March 5, 1999
    Date of Patent: April 2, 2002
    Assignee: DRS Digitale Repro-Systeme GmbH
    Inventors: Hans-Hermann Schreier, Robert Masselink, Jürgen Valentin, Markus Grigat, Frank Plück, André Brück