Patents by Inventor Wilhelm Ohlinger

Wilhelm Ohlinger 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).

  • Bi-directional difference counter
    Patent number: 4808900
    Abstract: Disclosed is a servo control system for a disk drive actuator using a bi-directional (Up/Down) Difference Counter along with a control circuit therefor which signals the counter each time a "rest position" is passed, indicating whether this passage is toward, or away-from, the destination track.
    Type: Grant
    Filed: March 2, 1987
    Date of Patent: February 28, 1989
    Assignee: Unisys Corp.
    Inventors: Wilhelm Ohlinger, Nicholas M. Warner