Patents by Inventor Michael Kochmann

Michael Kochmann 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).

  • Control of input devices via a keyboard interface
    Patent number: 5504483
    Abstract: For operating input devices such as magnetic card readers (22) or keyswitches (23) on personal computers (11), these are connected to the keyboard processor (18) and activated by hitherto unused control codes. The data of the input devices are recoded into data for possible key operations and the data transmission to the personal computer is initiated by the code for a non-existent key. As a result, the keyboard controller in the personal computer does not need to be reprogrammed, and the function of the input device cannot be simulated via the keyboard.
    Type: Grant
    Filed: July 22, 1994
    Date of Patent: April 2, 1996
    Assignee: Siemens Nixdorf Informationssysteme Aktiengesellschaft
    Inventors: Stefan Hoffmann, Rudiger Koeppen, Michael Kochmann