Patents by Inventor Uda Blasius

Uda Blasius 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 detecting register errors on a printed product provided with register marks
    Patent number: 5249139
    Abstract: A method of detecting register errors on a printed product, includes forming register marks on the printed product, pressing the printed product through a printing machine, opto-electrically scanning the register marks twice in a web travel direction with a predetermined time interval between the scannings, generating respective signals in accordance with the scannings, subtracting the signals from one another to obtain a further signal, and determining the position of the register mark as a measure of a time-dependent position of an extreme value of the further signal; and apparatus for performing the method.
    Type: Grant
    Filed: May 8, 1991
    Date of Patent: September 28, 1993
    Assignee: Heidelberger Druckmaschinen AG
    Inventors: Uda Blasius, Manfred Korinek, Jurgen Reithofer