Patents by Inventor Wolfgang Kuphaldt

Wolfgang Kuphaldt 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 device for the detection of a substrate edge in a printing machine
    Patent number: 8760667
    Abstract: The present invention relates to a method and a device for the detection of a substrate edge in a printing machine comprising a substrate transport unit that defines a substrate transport path (8). In this method, at least one light value of a first section of a sensor line (10) and a dark value of a second section of the sensor line are determined, and a threshold value is calculated based thereon. When the threshold value on one pixel is exceeded and the threshold value on another pixel is not reached, it is possible to calculate a position of the substrate edge. The device comprises a light source arrangement (5) for generating diffuse light, and comprises a sensor line for the detection of light from the light source arrangement.
    Type: Grant
    Filed: April 15, 2010
    Date of Patent: June 24, 2014
    Assignee: Eastman Kodak Company
    Inventors: Thomas Jacobsen, Wolfgang Kuphaldt, Joerg Zessin
  • METHOD AND DEVICE FOR THE DETECTION OF A SUBSTRATE EDGE IN A PRINTING MACHINE
    Publication number: 20120147385
    Abstract: The present invention relates to a method and a device for the detection of a substrate edge in a printing machine comprising a substrate transport unit that defines a substrate transport path (8). In this method, at least one light value of a first section of a sensor line (10) and a dark value of a second section of the sensor line are determined, and a threshold value is calculated based thereon. When the threshold value on one pixel is exceeded and the threshold value on another pixel is not reached, it is possible to calculate a position of the substrate edge. The device comprises a light source arrangement (5) for generating diffuse light, and comprises a sensor line for the detection of light from the light source arrangement.
    Type: Application
    Filed: April 15, 2010
    Publication date: June 14, 2012
    Inventors: Thomas Jacobsen, Wolfgang Kuphaldt, Joerg Zessin