Patents by Inventor Walter H{umlaut over (a)}nel

Walter H{umlaut over (a)}nel 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).

  • Importing information onto a chip card
    Patent number: 6173401
    Abstract: The invention relates to a method of importing information, in particular application information, onto a chip card which has a memory with a directory. The information being transferred onto the chip card comprises data and code, and it is often necessary to distribute these data and the code to different files in the directory. The method of the invention establishes whether the data and the code have been placed properly in the various files. The invention makes it possible to verify whether the information has been placed in the proper location allocated to it in the memory of the chip card. When an application is to be placed onto a chip card, the information is loaded into the chip card memory but is no allowed to be used until its location on the card is verified. Verification is accomplished by calculating an electronic fingerprint of the information and it's location.
    Type: Grant
    Filed: April 14, 1998
    Date of Patent: January 9, 2001
    Assignee: International Business Machine Corp.
    Inventors: Michael Deindl, Walter H{umlaut over (a)}nel, Albert Schaal