Patents by Inventor Amoldus J. M. Van Der Stappen

Amoldus J. M. Van Der Stappen 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).

  • Device and method for producing an optical registration carrier by means of a master mold, an optical registration carrier
    Patent number: 6865554
    Abstract: A method for producing, by means of a master mould, an optical registration carrier which is provided with at least one programme which comprises information stored in the form of variations in a physical parameter. A master mould is made by means of an encoder and a laser beam recorder, wherein the laser beam recorder is driven from the encoder for storing at least said programme on the master mould. Random verification positions are generated thereby, after which coordinates of the verification positions are encrypted into verification information. The verification information is stored in the programme and verification effects are stored at said verification positions.
    Type: Grant
    Filed: September 25, 1998
    Date of Patent: March 8, 2005
    Assignee: Singulus Mastering B.V.
    Inventors: Josephus Marinus Wijn, Amoldus J. M. Van Der Stappen