Patents by Inventor Torben P. Pedersen

Torben P. Pedersen 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 for effecting an electronic payment transaction having a variable number of payment units, as well as payment means and system for applying the method
    Patent number: 5739511
    Abstract: The invention relates to a method for protected payment with electronic payment device, such as "intelligent" payment cards ("smart cards"), in a variable number of steps. In this connection, use is made of a non-reversible function, of which successive function values are provided by the payment device to the payment station in question by way of proof of payment. On the basis of these function values, there may take place both a verification and a determination of the number of steps. Such method finds application, e.g., in public telephones and in copiers. The invention further relates to a payment device and a payment system for applying the method.
    Type: Grant
    Filed: May 13, 1996
    Date of Patent: April 14, 1998
    Assignee: Koninklijke PTT Nederland N.V.
    Inventor: Torben P. Pedersen