Patents by Inventor Frederick A. McLean

Frederick A. McLean 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 and system for reading data that is unreadable by a tape drive
    Patent number: 5969898
    Abstract: A method and system for reading data containing errors due to curved or displaced tracks in a track region reproduced by reproducing heads in a tape drive includes a signal processing circuit for sensing a first set of parameters associated with the data at a first head position at predetermined points along each track in the region. The signal processing circuit also senses a second set of parameters associated with the data at a second head position different from the first head position at the predetermined points along each track in the region. A movable head controller positions the reproducing heads to follow the curved or displaced tracks based on the first and second head positions and the first and second set of parameters.
    Type: Grant
    Filed: October 1, 1997
    Date of Patent: October 19, 1999
    Assignee: Storage Technology Corporation
    Inventors: Douglas C. Hansen, Frederick A. McLean