Patents by Inventor Steven Michael Currie

Steven Michael Currie 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).

  • Surface analysis test defect detector for direct access storage device
    Patent number: 6104188
    Abstract: A method and apparatus are provided for detecting surface defects in a direct access storage device. Disk data readback sample values are converted to gain error values based upon an identified difference from predefined ideal data values. An error signal accumulator accumulates a summed value of error signals for a current sample and a predetermined number of past samples. Each sequential accumulator summed value is compared with a predetermined threshold value. An error output is generated responsive to each sequential accumulator summed value greater than or equal to the predetermined threshold value, the error output identifying the disk surface defect.
    Type: Grant
    Filed: October 13, 1998
    Date of Patent: August 15, 2000
    Assignee: International Business Machines Corporation
    Inventors: Jonathan Darrel Coker, Steven Michael Currie, Richard Leo Galbraith, Donald Earl Vosberg